We work on many aspects of plant biology, so covering them all in a few pages is difficult. Selected projects are mentioned below.

Jansson Stefan 1150

Tree genomics

Our “favourite aspen”, growing on the campus in Umeå.Our “favourite aspen”, growing on the University campus in Umeå.Our “favourite aspen”, growing on the campus. The ultimate goal of this project is to learn how to find the genetic differences that make trees different from each other. Forest trees are, in general, more genetically diverse than most other organisms and aspens are, in this respect, extreme. Gene sequences from two aspens are on average about as different genetically as human and chimpanzee sequences are.We have built many genomic resources for Populus in general and aspen (P. tremula) in particular, for example clone collections (the SwAsp and UmAsp collections), ESTs, DNA microarrays, genome sequence of poplar and aspen, small RNAs as well as bioinformatic tools and databases. We are also working on spruce, e. g. generated the spruce genome sequence.

Autumn senescence

Using these tools, we study how aspens acclimate and adapt to the environment. Particular attention is paid to the process of autumn senescence, trying to answer the question: How do trees know it is autumn? We are studying gene expression, photosynthesis and metabolism of the leaves during autumn senescence. In these studies we use transgenic plants but, more importantly, natural variation. There is a steep cline in autumn senescence; trees from northern latitudes enter senescence much earlier than those from southern latitudes, and by using the aspen genome sequence, the collection of aspen clones and genetic tools like association mapping, we hope to understand the genetic basis of this important trait. The same strategies are also used to dissect other traits, including herbivory and other biotic interactions.

Photosynthetic light harvesting

In the photosynthetic apparatus of green plants, the light- harvesting chlorophyll a/b-binding (LHC) proteins serve as antennae for photosystems I and II. Members of the LHC protein family have three membrane-spanning regions and bind the majority of the photosynthetic pigments (chlorophyll and carotenoids), make the photosynthetic light reaction effi- cient and regulate the photosynthetic light reaction, for example by dissipating excess light and adjusting the excitation balance between the photosystems. There are a group of proteins that are more distant members of this protein family. This group consists of PsbS, ELIPs (early light-inducible proteins) and several smaller proteins, containing only one or two membrane anning regions. PsbS is necessary for a light dissipation process – the qE type of non-photochemical quenching (NPQ) or feedback de-excitation (FDE) - that operates when the plants is exposed to "excess light".

We are studying the family of LHC proteins using bio- chemical, reverse and forward genetic and molecular biological approaches. In Arabidopsis, over 30 genes encode proteins of this family and we are systematically producing (through T-DNA knockouts or artificial microRNAs) and analysing – also under field conditions - plants that lack different LHC proteins.The photosynthetic performance of these plants helps us understand the function of the individual proteins, the structure of the photosystems and energy transfer in the antenna.

stefan 2

stefan 3

How does the tree know that it is autumn?

Field experiment with transgenic Arabidopsis.



sweden_greySvensk sammanfattning

 More information about Stefan Jansson's activities



Publication list

  1. Stem Girdling Affects The Onset of Autumn Senescence In Aspen In Interaction With Metabolic Signals
    Physiol Plant. 2020 Dec 25 Online ahead of print
  2. Direct energy transfer from photosystem II to photosystem I confers winter sustainability in Scots Pine
    Nat Commun 2020, 11(1):6388
  3. Leaf shape in Populus tremulais a complex, omnigenic trait
    ECOLOGY AND EVOLUTION 2020, 10(21):11922-11940
  4. Specific thylakoid protein phosphorylations are prerequisites for overwintering of Norway spruce ( Picea abies) photosynthesis
    Proc Natl Acad Sci U S A. 2020 Jul 20, Online ahead of print
  5. Inferring the Genomic Landscape of Recombination Rate Variation in European Aspen (Populus tremula)
    G3-GENES GENOMES GENETICS 2020, 10(1):299-309
  6. The unique photosynthetic apparatus of Pinaceae - Analysis of photosynthetic complexes in Norway spruce (Piceaabies)
    J Exp Bot. 2019, 70(12):3211-3225
  7. Gene-edited plants: What is happening now?
    Physiol Plant. 2018, 164(4):370-371
  8. Functional and evolutionary genomic inferences in Populus through genome and population sequencing of American and European aspen
    Proc Natl Acad Sci U S A. 2018, 115(46):E10970-E10978
  9. A major locus controls local adaptation and adaptive life history variation in a perennial plant
    Genome Biol. 2018 Jun 4;19(1):72
  10. Gene-edited plants on the plate - the "CRISPR cabbage story"
    Physiol Plant. 2018, 164(4):396-405
  11. Fine-Tuning of Photosynthesis Requires CURVATURE THYLAKOID1-Mediated Thylakoid Plasticity
    PLANT PHYSIOLOGY 2018, 176(3):2351-2364
  12. Darkened leaves use different metabolic strategies for senescence and survival
    Plant Physiol. 2018; 177 (1):132-150
  13. Stable accumulation of photosystem II requires ONE-HELIX PROTEIN1 (OHP1) of the light harvesting-like family
    Plant Physiology 2018, 176 (3):2277-2291
  14. CURT1-mediated thylakoid plasticity is required for fine-tuning photosynthesis and plant fitness
    Plant Physiology Vol.176, Issue 1Jan 2018
  15. Active-site plasticity revealed in the asymmetric dimer of AnPrx6 the 1-Cys peroxiredoxin and molecular chaperone from Anabaena sp. PCC 7210
    Sci Rep. 2017, 7(1):17151
  16. Genetic variation in resistance of Norway spruce seedlings to damage by the pine weevil Hylobius abietis
    TREE GENETICS & GENOMES 2017, 13 (5)
  17. Autumn senescence in aspen is not triggered by day length
    Physiol Plant. 2018, 162(1):123-134
  18. Contrasting patterns of cytokinins between years in senescing aspen leaves
    Plant Cell Environ. 2017, 40(5):622-634
  19. Enhanced resistance of PsbS-deficient rice (Oryza sativa L.) to fungal and bacterial pathogens
    JOURNAL OF PLANT BIOLOGY 2016, 59 (6):616-626
  20. An intact light harvesting complex I antenna system is required for complete state transitions in Arabidopsis
    NATURE PLANTS 2015, 1 (12)
  21. Challenges facing European agriculture and possible biotechnological solutions
    Crit Rev Biotechnol. 2016, 36 (5):875-883
  22. The Plant Genome Integrative Explorer Resource: PlantGenIE.org
    New Phytol. 2015, 208 (4):1149-1156
  23. Comparative physiology of allopatric Populus species: geographic clines in photosynthesis, height growth, and carbon isotope discrimination in common gardens
    Front Plant Sci. 2015, 6:528
  24. Insights into Conifer Giga-Genomes
    Plant Physiol. 2014, 166(4):1724-32
  25. Production of superoxide from Photosystem II in a rice (Oryza sativa L.) mutant lacking PsbS
    Plant Biology 2014, 14:242
  26. Populus tremula (European aspen) shows no evidence of sexual dimorphism
    BMC Plant Biol. 2014; 14(1):276
  27. No Evidence of Geographical Structure of Salicinoid Chemotypes within Populus Tremula
    PLoS ONE 2014; 9(10):e107189
  28. The Light-Harvesting Chlorophyll a/b Binding Proteins Lhcb1 and Lhcb2 Play Complementary Roles during State Transitions in Arabidopsis
    Plant Cell. 2014, 26 (9):3646-3660
  29. Very rapid phosphorylation kinetics suggest a unique role for Lhcb2 during state transitions in Arabidopsis
    Plant J. 2013;76 (2):236-246
  30. The Norway spruce genome sequence and conifer genome evolution
    Nature 2013; 497(7451):579-584
  31. Geographic structure in metabolome and herbivore community co-occurs with genetic structure in plant defence genes
    Ecology Letters 2013, 16 (6):791-798
  32. Johansson-Jänkänpää H, Frenkel M, Zulfugarov I, Reichelt M, Krieger-Liszkay A, Mishra Y, Gershenzon J, Moen J, Lee C, Jansson S
    Non-Photochemical Quenching Capacity in Arabidopsis thaliana Affects Herbivore Behaviour
    PLoS ONE 2013 8(1):e53232
  33. Suorsa M, Järvi S, Grieco M, Nurmi M, Pietrzykowska M, Rantala M, Kangasjärvi S, Paakkarinen V, Tikkanen M, Jansson S, Aro EM
    PROTON GRADIENT REGULATION5 Is Essential for Proper Acclimation of Arabidopsis Photosystem I to Naturally and Artificially Fluctuating Light Conditions.
    Plant Cell. 2012 24(7):2934-2948
  34. Robinson KM, Ingvarsson PK, Jansson S, Albrectsen BR
    Genetic Variation in Functional Traits Influences Arthropod Community Composition in Aspen (Populus tremula L.)
    PLoS ONE 2012; 7(5):e37679
  35. Ismail M, Soolanayakanahally RJ, Ingvarsson PK, Guy RD , Jansson S, Silim SN, El-Kassaby YA
    Comparative Nucleotide Diversity Across North American and European Populus Species
    Journal of Molecular Evolution 2012 74(5-6): 257-272
  36. Jänkänpää HJ, Mishra Y, Schröder WP, Jansson S
    Metabolic profiling reveals metabolic shifts in Arabidopsis plants grown under different light conditions.
    Plant, Cell & Environment 2012 Online
  37. Jänkänpää HJ, Jansson S
    How to grow transgenic Arabidopsis in the field
    Methods Mol Biol. 2012;847:483-94
  38. Mishra Y, Johansson Jankanpaa H, Kiss AZ, Funk C, Schroder WP, Jansson S
    Arabidopsis plants grown in the field and climate chambers significantly differ in leaf morphology and photosystem components
    BMC Plant Biology 2012, 12:6
  39. Expression, purification, crystallization and preliminary X-ray crystallographic studies of alkyl hydroperoxide reductase (AhpC) from the cyanobacterium Anabaena sp. PCC 7120
    Acta Cryst. : 2011 F67
  40. Wagner R, Aigner H, Pruzinska A, Jänkänpää HJ, Jansson S, Funk C
    Fitness analyses of Arabidopsis thaliana mutants depleted of FtsH metalloproteases and characterization of three FtsH6 deletion mutants exposed to high light stress, senescence and chilling
    The New Phytologist: 2011, 191:449-458
  41. Street NR, Jansson S, Hvidsten TR
    A systems biology model of the regulatory network in Populus leaves reveals interacting regulators and conserved regulation
    BMC Plant Biology: 2011 11:13
  42. Ma X-F, Hall D, St. Onge KR, Jansson S, Ingvarsson PK
    Genetic differentiation, clinal variation and phenotypic associations with growth cessation across the Populus tremula photoperiodic pathway
    Genetics: 2010 186:1033-1044
  43. Jansson S, Ingvarsson PK
    Cohort-structured tree populations
    Heredity 2010 105:331-332
  44. Albrectsen BR, Björkén L, Varad A, Hagner Å, Wedin M, Karlsson J, Jansson S
    Endophytic fungi in European aspen (Populus tremula) leaves-diversity, detection, and a suggested correlation with herbivory resistance
    Fungal Diversity: 2010 41:17-28
  45. Klevebring D, Street NR, Fahlgren N, Kasschau KD, Carrington JC, Lundeberg J, Jansson S
    Genome-wide profiling of Populus small RNAs
    BMC Genomics: 2009 10:620, 18 pp.
  46. Damkjær JT, Kereiche S, Johnson MP, Kovacs L, Kiss AZ, Boekema EJ, Ruban AV, Horton P, Jansson S
    The photosystem II light-harvesting protein Lhcb3 affects the macrostructure of photosystem II and the rate of state transitions in Arabidopsis
    The Plant Cell: 2009 21:3245-3256
  47. Albrectsen BR, Witzell J, Robinson KM, Wulff S, Luquez VMC, Ågren R, Jansson S
    Large scale geographic clines of parasite damage to Populus tremula L.
    Ecography: 2010 33:483-493
  48. Babst BA, Sjödin A, Jansson S, Orians CM
    Local and systemic transcriptome responses to herbivory and jasmonic acid in Populus
    Tree Genetics & Genomes: 2009 5:459-474
  49. Fracheboud Y, Luquez V, Björkén L, Sjödin A, Tuominen H, Jansson S
    The control of autumn senescence in European aspen
    Plant Physiology: 2009 149:1982-1991
  50. Fracheboud Y, Luquez V, Björkén L, Sjödin A, Tuominen H, Jansson S
    The control of autumn senescence in European aspen
    Plant Physiology: 2009 149:1982-1991
  51. Courtois-Moreau CL, Pesquet E, Sjödin A, Muniz L, Bollhöner B, Kaneda M, Samuels L, Jansson S, Tuominen H
    A unique program for cell death in xylem fibers of Populus stem
    The Plant Journal: 2009 58(2):260-274
  52. Wientjes E, Oostergetel GT, Jansson S, Boekema EJ. Croce R
    The role of Lhca complexes in the supramolecular organization of higher plant photosystem I
    Journal of Biological Chemistry: 2009 284(12):7800-7807
  53. Wientjes E, Oostergetel GT, Jansson S, Boekema EJ. Croce R
    The role of Lhca complexes in the supramolecular organization of higher plant photosystem I
    Journal of Biological Chemistry: 2009 284(12):7800-7807
  54. Sjödin A, Street NR, Sandberg G, Gustafsson P, Jansson S
    The Populus genome integrative explorer (PopGenIE): a new resource for exploring the Populus genome
    New Phytologist: 2009 182:1013-1025
  55. Sjödin A, Street NR, Sandberg G, Gustafsson P, Jansson S
    The Populus genome integrative explorer (PopGenIE): a new resource for exploring the Populus genome
    New Phytologist: 2009, publised online
  56. Frenkel M, Külheim C, Johansson Jänkänpää H, Skogström O, Dall'Osto L, Ågren J, Bassi R, Moritz T, Moen J, Jansson S
    Improper excess light energy dissipation in Arabidopsis results in a metabolic reprogramming
    BMC Plant Biology: 2009 9:12
  57. Frenkel M, Kulheim C, Johansson Jankanpaa H, Skogstrom O, Dall'Osto L, Agren J, Bassi R, Moritz T, Moen J, Jansson S
    Improper excess light energy dissipation in Arabidopsis results in a metabolic reprogramming
    BMC Plant Biology: 2009 9:12
  58. Garcia-Cerdin JG, Sveshnikov D, Dewer D., Jansson S, Funk C, Schröder WP
    Antisense inhibition of the PsbX protein affects PSII integrity in higher plant Arabidopsis thaliana
    Plant and Cell Physiology: 2009 50(2):191-202
  59. Street NR, Sjödin A, Bylesjö M, Gustafsson P, Trygg J, Jansson S
    A cross-species transcriptomics approach to identify genes involved in leaf development
    BMC Genomics: 2008 9:589
  60. Street NR, Sjödin A, Bylesjö M, Gustafsson P, Trygg J, Jansson S
    A cross-species transcriptomics approach to identify genes involved in leaf development
    BMC Genomics: 2008 9:589
  61. Bylesjö M, Nilsson R, Srivastava V, Grönlund A, Johansson AI, Jansson S, Karlsson J, Moritz T, Wingsle G, Trygg J
    Integrated Analysis of Transcript, Protein and Metabolite Data To Study Lignin Biosynthesis in Hybrid Aspen
    Journal of Proteome Research: 2009 8:199-210
  62. Bylesjö M, Nilsson R, Srivastava V, Grönlund A, Johansson AI, Jansson S, Karlsson J, Moritz T, Wingsle G, Trygg J
    Integrated Analysis of Transcript, Protein and Metabolite Data To Study Lignin Biosynthesis in Hybrid Aspen
    Journal of Proteome Research: 2008, Published on line
  63. Bylesjö M, Segura V, Soolanayakanahally RY, Rae AM, Trygg J, Gustafsson P, Jansson S, Street NR
    LAMINA: a tool for rapid quantification of leaf size and shape parameters
    BMC Plant Biology: 2008 8:82
  64. Bylesjö M, Segura V, Soolanayakanahally RY, Rae AM, Trygg J, Gustafsson P, Jansson S, Street NR
    LAMINA: a tool for rapid quantification of leaf size and shape parameters
    BMC Plant Biology: 2008 8:82
  65. Frenkel M, Johansson Jänkänpää H, Moen J, Jansson S
    An illustrated gardener's guide to transgenic Arabidopsis field experiments
    New Phytologist: 2008 180:545-555
  66. Frenkel M, Johansson Jänkänpää H, Moen J, Jansson S
    An illustrated gardener's guide to transgenic Arabidopsis field experiments
    New Phytologist: 2008, on line
  67. Sjödin A, Wissel K, Bylesjö M, Trygg J, Jansson S
    Global expression profiling in leaves of free-growing aspen
    BMC Plant Biology: 2008 8:61
  68. Sjödin A, Wissel K, Bylesjö M, Trygg J, Jansson S
    Global expression profiling in leaves of free-growing aspen
    BMC Plant Biology: 2008 8:61
  69. Jansson S, Thomas H
    Senescence: developmental program or timetable?
    New Phytologist: 2008 179:575-579
  70. Jansson S, Thomas H
    Senescence: developmental program or timetable?
    New Phytologist, online early publication
  71. Ingvarsson PK, Garcia MV, Luquez V, Hall D, Jansson S
    Nucleotide polymorphism and phenotypic associations within and around the phytochrome B2 locus in European aspen (Populus tremula, Salicaceae)
    Genetics: 2008 178:2217-2226
  72. Ingvarsson PK, Garcia MV, Luquez V, Hall D, Jansson S
    Nucleotide polymorphism and phenotypic associations within and around the phytochrome B2 locus in European aspen (Populus tremula, Salicaceae)
    Genetics: 2008 178:2217-2226
  73. Lee H, Bae E-K, Park S-Y, Sjödin A, Lee J-S, Noh E-W, Jansson S
    Growth-phase-dependent gene expression profiling of poplar (Populus alba x Populus tremula var. glandulosa) suspension cells
    Physiologia Plantarum: 2007 131:599-613
  74. Hall D, Luquez V, Garcia VM, St Onge KR, Jansson S, Ingvarsson PK
    Adaptive population differentiation in phenology across a latitudinal gradient in European aspen (Populus tremula, L.): A comparison of neutral markers, candidate genes and phenotypic traits
    Evolution: 2007 61:2849-2860
  75. Hall D, Luquez V, Garcia VM, St Onge KR, Jansson S, Ingvarsson PK
    Adaptive population differentiation in phenology across a latitudinal gradient in European aspen (Populus tremula, L.): A comparison of neutral markers, candidate genes and phenotypic traits
    Evolution, on line
  76. Luquez V, Hall D, Albrectsen BR, Karlsson J, Ingvarsson P, Jansson S
    Natural phenological variation in aspen (Populus tremula): the SwAsp collection
    Tree Genetics & Genomes: 2008 4:279-292
  77. Luquez V, Hall D, Albrectsen BR, Karlsson J, Ingvarsson P, Jansson S
    Natural phenological variation in aspen (Populus tremula): the SwAsp collection
    Tree Genetics & Genomes: On line publication
  78. Bylesjo M, Eriksson D, Sjodin A, Jansson S, Moritz T, Trygg J
    Orthogonal projections to latent structures as a strategy for microarray data normalization.
    BMC Bioinformatics 2007, 8:207.
  79. Bylesjo M, Eriksson D, Sjodin A, Jansson S, Moritz T, Trygg J
    Orthogonal projections to latent structures as a strategy for microarray data normalization.
    BMC Bioinformatics 2007, 8:207.
  80. Jensen PE, Bassi R, Boekema EJ, Dekker JP, Jansson S, Leister D, Robinson C, Scheller HV
    Structure, function and regulation of plant photosystem I
    Biochimica et Biophysica Acta: 2007 1767:335-352
  81. Jensen PE, Bassi R, Boekema EJ, Dekker JP, Jansson S, Leister D, Robinson C, Scheller HV
    Structure, function and regulation of plant photosystem I
    Biochimica et Biophysica Acta: 2007 1767:335-352
  82. Jansson S, Douglas CJ
    Populus: A model system for plant biology
    Annu. Rev. Plant Biol.: 2007 58:435-458
  83. Jansson S, Douglas CJ
    Populus: A model system for plant biology
    Annu. Rev. Plant Biol.: 2007 58:435-458
  84. Jansson S, Buckler ES
    Genome studies and molecular genetics. Genomics - deeper and wider in order to understanding plant diversity.
    Current Opinion in Plant Biology: 2007 10:107-108
  85. Jansson S, Buckler ES
    Genome studies and molecular genetics. Genomics - deeper and wider in order to understanding plant diversity.
    Current Opinion in Plant Biology: 2007 10:107-108
  86. Garcia-Lorenzo M, Sjödin A, Jansson S, Funk C
    Protease gene families in Populus and Arabidopsis
    BMC Plant Biology 2006 6: 30, 24 pp.
  87. Frenkel M, Bellafiore S, Rochaix J-D, Jansson S
    Hierarchy amongst photosynthetic acclimation responses for plant fitness
    Physiologia Plantarum: 2007 129:455-459
  88. Frenkel M, Bellafiore S, Rochaix J-D, Jansson S
    Hierarchy amongst photosynthetic acclimation responses for plant fitness
    Physiologia Plantarum: 2007 129:455-459
  89. Kovács L, Damkjaer J, Kereïche S, Ilioaia C, Ruban AV, Boekema EJ, Jansson S, Horton P
    Lack of the light-harvesting complex CP24 affects the structure and function of the grana membranes of higher plant chloroplasts
    Plant Cell 2006 18:3106-3120
  90. Segerman B, Jansson S, Karlsson J
    Characterization of genes with tissue-specific differential expression patterns in Populus
    Tree Genetics & Genomes: 2007 3:351-362
  91. Segerman B, Jansson S, Karlsson J
    Characterization of genes with tissue-specific differential expression patterns in Populus
    Tree Genetics & Genomes: 2007, on line publication
  92. Lucinski R, Schmid VHR, Jansson S, Klimmek F
    Lhca5 interaction with plant photosystem I
    FEBS Letters: 2006 580:6485-6488
  93. Sjodin A, Bylesjo M, Skogstrom O, Eriksson D, Nilsson P, Ryden P, Jansson S, Karlsson J
    UPSC-BASE - Populus transcriptomics online
    Plant Journal: 2006 48:806-817
  94. Bylesjo M, Sjodin A, Eriksson D, Antti H, Moritz T, Jansson S, Trygg J
    MASQOT-GUI: spot quality assessment for the two-channel microarray platform
    Bioinformatics: 2006 22:2554-2555
  95. Street NR, Skogstrom O, Sjodin A, Tucker J, Rodriguez-Acosta M, Nilsson P, Jansson S, Taylor G
    The genetics and genomics of the drought response in Populus
    Plant Journal: 2006 48:321-341
  96. Ingvarsson PK, Garcia MV, Hall D, Luquez V, Jansson S
    Clinal variation in phyB2, a candidate gene for day-length-induced growth cessation and bud set, across a latitudinal gradient in European aspen (Populus tremula)
    Genetics: 2006 172:1845-1853
  97. Ruban AV, Solovieva S, Lee PJ, Ilioaia C, Wentworth M, Ganeteg U, Klimmek F, Chow WS, Anderson JM, Jansson S, Horton P
    Plasticity in the composition of the light harvesting antenna of higher plants preserves structural integrity and biological function
    Journal Of Biological Chemistry: 2006 281:14981-14990
  98. Albrectsen BR, Jansson S
    From micro towards the macro scale
    New Phytologist: 2006 172:7-10
  99. Demmig-Adams B, Ebbert V, Mellman DL, Mueh KE, Schaffer L, Funk C, Zarter CR, Adamska I, Jansson S, Iii WWA
    Modulation of PsbS and flexible vs sustained energy dissipation by light environment in different species
    Physiologia Plantarum: 2006 127:670-680
  100. Zarter CR, Adams WW, Ebbert V, Adamska I, Jansson S, Demmig-Adams B
    Winter acclimation of PsbS and related proteins in the evergreen Arctostaphylos uva-ursi as influenced by altitude and light environment
    Plant Cell and Environment: 2006 29:869-878
  101. Klimmek F, Sjodin A, Noutsos C, Leister D, Jansson S
    Abundantly and rarely expressed Lhc protein genes exhibit distinct regulation patterns in plants
    Plant Physiology: 2006 140:793-804
  102. Bohlenius H, Huang T, Charbonnel-Campaa L, Brunner AM, Jansson S, Strauss SH, Nilsson O
    CO/FT regulatory module controls timing of flowering and seasonal growth cessation in trees
    Science: 2006 312:1040-1043
  103. Tuskan GA, DiFazio S, Jansson S, Bohlmann J, Grigoriev I, Hellsten U, Putnam N, Ralph S, Rombauts S, Salamov A, Schein J, Sterck L, Aerts A, Bhalerao RR, Bhalerao RP, Blaudez D, Boerjan W, Brun A, Brunner A, Busov V, Campbell M, Carlson J, Chalot M, Chapman J, Chen GL, Cooper D, Coutinho PM, Couturier J, Covert S, Cronk Q, Cunningham R, Davis J, Degroeve S, Dejardin A, Depamphilis C, Detter J, Dirks B, Dubchak I, Duplessis S, Ehlting J, Ellis B, Gendler K, Goodstein D, Gribskov M, Grimwood J, Groover A, Gunter L, Hamberger B, Heinze B, Helariutta Y, Henrissat B, Holligan D, Holt R, Huang W, Islam-Faridi N, Jones S, Jones-Rhoades M, Jorgensen R, Joshi C, Kangasjarvi J, Karlsson J, Kelleher C, Kirkpatrick R, Kirst M, Kohler A, Kalluri U, Larimer F, Leebens-Mack J, Leple JC, Locascio P, Lou Y, Lucas S, Martin F, Montanini B, Napoli C, Nelson DR, Nelson C, Nieminen K, Nilsson O, Pereda V, Peter G, Philippe R, Pilate G, Poliakov A, Razumovskaya J, Richardson P, Rinaldi C, Ritland K, Rouze P, Ryaboy D, Schmutz J, Schrader J, Segerman B, Shin H, Siddiqui A, Sterky F, Terry A, Tsai CJ, Uberbacher E, Unneberg P, Vahala J, Wall K, Wessler S, Yang G, Yin T, Douglas C, Marra M, Sandberg G, de Peer YV, Rokhsar D
    The genome of black cottonwood, Populus trichocarpa (Torr. & Gray)
    Science: 2006 313:1596-1604
  104. Svalastog AL, Gustafsson P, Jansson S
    Comparative analysis of the risk-handling procedures for gene technology applications in medical and plant science
    Science and Engineering Ethics: 2006 12:465-479
  105. Unneberg P, Strömberg M, Lundeberg J, Jansson S, Sterky F
    Analysis of 70,000 EST sequences to study divergence between two closely related Populus species
    Tree Genetics & Genomes: 2005 1:109-115
  106. Klimmek F, Ganeteg U, Ihalainen JA, van Roon H, Jensen PE, Scheller HV, Dekker JP, Jansson S
    Structure of the higher plant light harvesting complex I: in vivo characterization and structural interdependence of the Lhca proteins
    Biochemistry: 2005 44:3065-3073
  107. Bylesjo M, Eriksson D, Sjodin A, Sjostrom M, Jansson S, Antti H, Trygg J
    MASQOT: a method for cDNA microarray spot quality control
    Bmc Bioinformatics: 2005 6:250
  108. Ihalainen JA, Klimmek F, Ganeteg U, van Stokkum IHM, van Grondelle R, Jansson S, Dekker JP
    Excitation energy trapping in photosystem I complexes depleted in Lhca1 and Lhca4
    FEBS Lett: 2005 579:4787-4791
  109. Moreau C, Aksenov N, Lorenzo MG, Segerman B, Funk C, Nilsson P, Jansson S, Tuominen H
    A genomic approach to investigate developmental cell death in woody tissues of Populus trees
    Genome Biology: 2005 6:R34
  110. Morosinotto T, Ballottari M, Klimmek F, Jansson S, Bassi R
    The association of the antenna system to photosystem I in higher plants. Cooperative interactions stabilize the supramolecular complex and enhance red-shifted spectral forms
    J Biol Chem: 2005 280:31050-31058
  111. Storf S, Jansson S, Schmid VHR
    Pigment binding, fluorescence properties, and oligomerization behavior of Lhca5, a novel light-harvesting protein
    J Biol Chem: 2005 280:5163-5168
  112. Villarejo A, Buren S, Larsson S, Dejardin A, Monne M, Rudhe C, Karlsson J, Jansson S, Lerouge P, Rollands N, von Heijne G, Grebe M, Bako L, Samuelsson G
    Evidence for a protein transported through the secretory pathway en route to the higher plant chloroplast
    Nature Cell Biology: 2005 7:1224-1231
  113. Sterck L, Rombauts S, Jansson S, Sterky F, RouzE P, de Peer YV
    EST data suggest that poplar is an ancient polyploid
    New Phytol: 2005 167:165-170
  114. Taylor G, Street NR, Tricker PJ, Sjodin A, Graham L, Skogstrom O, Calfapietra C, Mugnozza GS, Jansson S
    The transcriptome of Populus in elevated CO2
    New Phytol: 2005 167:143-154
  115. Kulheim C, Jansson S
    What leads to reduced fitness in non-photochemical quenching mutants?
    Physiologia Plantarum: 2005 125:202-211
  116. Keskitalo J, Bergquist G, Gardestrom P, Jansson S
    A cellular timetable of autumn senescence
    Plant Physiol: 2005 139:1635-1648
  117. Zelisko A, Garcia-Lorenzo M, Jackowski G, Jansson S, Funk C
    AtFtsH6 is involved in the degradation of the light-harvesting complex II during high-light acclimation and senescence
    Proceedings of the National Academy of Sciences of the United States of America: 2005 102:13699-13704-
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    A transcriptional timetable of autumn senescence
    Genome Biology: 2004 5:R24
  119. Ensminger I, Sveshnikov D, Campbell DA, Funk C, Jansson S, Lloyd J, Shibistova O, Oquist G
    Intermittent low temperatures constrain spring recovery of photosynthesis in boreal Scots pine forests
    Global Change Biology: 2004 10:995-1008
  120. Ganeteg U, Klimmek F, Jansson S
    Lhca5--an LHC-type protein associated with photosystem I
    Plant Mol Biol: 2004 54:641-651
  121. Ganeteg U, Külheim C, Andersson J, Jansson S
    Is each light-harvesting complex protein important for plant fitness?
    Plant Physiol: 2004 134:502-509
  122. Sterky F, Bhalerao RR, Unneberg P, Segerman B, Nilsson P, Brunner AM, Campaa LC, Lindvall JJ, Tandre K, Strauss SH, Sundberg B, Gustafsson P, UhlEn M, Bhalerao RP, Nilsson O, Sandberg G, Karlsson J, Lundeberg J, Jansson S
    A Populus EST resource for plant functional genomics
    Proc Natl Acad Sci U S A: 2004 101:13951-13956
  123. Lescot M, Rombauts S, Zhang J, Aubourg S, MathE C, Jansson S, RouzE P, Boerjan W
    Annotation of a 95-kb Populus deltoides genomic sequence reveals a disease resistance gene cluster and novel class I and class II transposable elements
    Theor Appl Genet: 2004 109:10-22
  124. Yakushevska AE, Keegstra W, Boekema EJ, Dekker JP, Andersson J, Jansson S, Ruban AV, Horton P
    The structure of photosystem II in Arabidopsis: localization of the CP26 and CP29 antenna complexes
    Biochemistry: 2003 42:608-613
  125. Ruban AV, Wentworth M, Yakushevska AE, Andersson J, Lee PJ, Keegstra W, Dekker JP, Boekema EJ, Jansson S, Horton P
    Plants lacking the main light-harvesting complex retain photosystem II macro-organization
    Nature: 2003 421:648-652
  126. Andersson J, Wentworth M, Walters RG, Howard CA, Ruban AV, Horton P, Jansson S
    Absence of the Lhcb1 and Lhcb2 proteins of the light-harvesting complex of photosystem II - effects on photosynthesis, grana stacking and fitness
    Plant J: 2003 35:350-361
  127. Bhalerao R, Keskitalo J, Sterky F, Erlandsson R, Bjorkbacka H, Birve SJ, Karlsson J, Gardestrom P, Gustafsson P, Lundeberg J, Jansson S
    Gene expression in autumn leaves
    Plant Physiol: 2003 131:430-442
  128. Wissel K, Pettersson F, Berglund A, Jansson S
    What affects mRNA levels in leaves of field-grown aspen? A study of developmental and environmental influences
    Plant Physiol: 2003 133:1190-1197
  129. Wullschleger SD, Jansson S, Taylor G
    Genomics and forest biology: Populus emerges as the perennial favorite
    Plant Cell: 2002 14:2651-2655
  130. Savitch LV, Leonardos ED, Krol M, Jansson S, Grodzinski B, Huner NPA, Oquist G
    Two different strategies for light utilization in photosynthesis in relation to growth and cold acclimation
    Plant Cell and Environment: 2002 25:761-771
  131. Külheim C, Agren J, Jansson S
    Rapid regulation of light harvesting and plant fitness in the field
    Science: 2002 297:91-93
  132. Jackowski G, Kacprzak K, Jansson S
    Identification of Lhcb1/Lhcb2/Lhcb3 heterotrimers of the main light-harvesting chlorophyll a/b-protein complex of Photosystem II (LHC II)
    Biochimica Et Biophysica Acta-Bioenergetics: 2001 1504:340-345
  133. Andersson J, Walters RG, Horton P, Jansson S
    Antisense inhibition of the photosynthetic antenna proteins CP29 and CP26: implications for the mechanism of protective energy dissipation
    Plant Cell: 2001 13:1193-1204
  134. Ganeteg U, Strand A, Gustafsson P, Jansson S
    The properties of the chlorophyll a/b-binding proteins Lhca2 and Lhca3 studied in vivo using antisense inhibition
    Plant Physiology: 2001 127:150-158
  135. Bailey S, Walters RG, Jansson S, Horton P
    Acclimation of Arabidopsis thaliana to the light environment: the existence of separate low light and high light responses
    Planta: 2001 213:794-801
  136. Li XP, Bjorkman O, Shih C, Grossman AR, Rosenquist M, Jansson S, Niyogi KK
    A pigment-binding protein essential for regulation of photosynthetic light harvesting
    Nature: 2000 403:391-395
  137. Jansson S, Andersson J, Jung Kim S, Jackowski G
    An Arabidopsis thaliana protein homologous to cyanobacterial high-light-inducible proteins
    Plant Molecular Biology: 2000 42:345-351
  138. Kim SJ, Jansson S, Hoffman NE, Robinson C, Mant A
    Distinct "assisted" and "spontaneous" mechanisms for the insertion of polytopic chlorophyll-binding proteins into the thylakoid membrane
    J Biol Chem: 1999 274:4715-4721
  139. Jansson S, Green B, Grossman AR, Hiller R
    A proposal for extending the nomenclature of light-harvesting proteins of the three transmembrane helix type
    Plant Molecular Biology Reporter: 1999 17:221-224
  140. Krol M, Ivanov AG, Jansson S, Kloppstech K, Huner NPA
    Greening under high light or cold temperature affects the level of xanthophyll-cycle pigments, early light-inducible proteins, and light-harvesting polypeptides in wild-type barley and the chlorina f2 mutant
    Plant Physiology: 1999 120:193-203
  141. Jansson S
    A guide to the Lhc genes and their relatives in Arabidopsis
    Trends in Plant Science: 1999 4:236-240
  142. Jackowski G, Jansson S
    Characterization of photosystem II antenna complexes separated by non-denaturing isoelectric focusing
    Zeitschrift Fur Naturforschung C-a Journal of Biosciences: 1998 53:841-848
  143. Jansson S, Stefansson H, Nystrom U, Gustafsson P, Albertsson PA
    Antenna protein composition of PS I and PS II in thylakoid sub-domains
    Biochimica Et Biophysica Acta-Bioenergetics: 1997 1320:297-309
  144. Hankamer B, Nield J, Zheleva D, Boekema E, Jansson S, Barber J
    Isolation and biochemical characterisation of monomeric and dimeric photosystem II complexes from spinach and their relevance to the organisation of photosystem II in vivo
    Eur J Biochem: 1997 243:422-429
  145. Bossmann B, Knoetzel J, Jansson S
    Screening of chlorina mutants of barley (Hordeum vulgare L.) with antibodies against light-harvesting proteins of PS I and PS II: Absence of specific antenna proteins
    Photosynthesis Research: 1997 52:127-136
  146. Zhang H, Goodman HM, Jansson S
    Antisense inhibition of the photosystem I antenna protein Lhca4 in Arabidopsis thaliana
    Plant Physiol: 1997 115:1525-1531
  147. Jansson S, Andersen B, Scheller HV
    Nearest-neighbor analysis of higher-plant photosystem I holocomplex
    Plant Physiol: 1996 112:409-420
  148. Krol M, Spangfort MD, Huner NPA, Oquist G, Gustafsson P, Jansson S
    Chlorophyll a/B-Binding Proteins, Pigment Conversions, and Early Light-Induced Proteins in a Chlorophyll B-Less Barley Mutant
    Plant Physiology: 1995 107:873-883
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    The Light-Harvesting Chlorophyll a/B Binding-Proteins
    Biochimica Et Biophysica Acta-Bioenergetics: 1994 1184:1-19
  150. Jansson S, Meyergauen G, Cerff R, Martin W
    Nucleotide Distribution in Gymnosperm Nuclear Sequences Suggests a Model for Gc-Content Change in Land-Plant Nuclear Genomes
    Journal of Molecular Evolution: 1994 39:34-46
  151. Jansson S, Gustafsson P
    Characterization of a Lhcb5 Cdna from Scots Pine (Pinus-Sylvestris)
    Plant Physiology: 1994 106:1695-1696
  152. Jansson S, Gustafsson P
    Characterization of Cdnas Corresponding to 2 Lhca4 Alleles from Scots Pine (Pinus-Sylvestris)
    Plant Physiology: 1994 106:1693-1694
  153. Krol M, Jansson S, Leverenz J, Oquist G, Huner NPA
    Is Lhcii Required for the Conversion of Violaxanthin to Zeaxanthin
    Plant Physiology: 1993 102:145-145
  154. Jansson S, Gustafsson P
    The Genes Encoding Light-Harvesting Chlorophyll a/B-Binding Proteins in Scots Pine
    Photosynthesis Research: 1992 34:121-121
  155. Jansson S, Virgin I, Gustafsson P, Andersson B, Oquist G
    Light-Induced-Changes of Photosystem-Ii Activity in Dark-Grown Scots Pine-Seedlings
    Physiologia Plantarum: 1992 84:6-12
  156. Jansson S
    Cytokinins and Transfer-Rnas - Arguments against a Hypothesis of Cytokinin Action
    Plant Cell and Environment: 1992 15:503-505
  157. Gustafsson P, Jansson S, Lidholm J, Lundberg AK
    Structure and Regulation of Photosynthesis Genes in Pinus-Sylvestris (Scots Pine) and Pinus-Contorta (Lodgepole Pine)
    Forest Ecology and Management: 1991 43:287-300
  158. Jansson S, Gustafsson P
    Evolutionary Conservation of the Chlorophyll a/B-Binding Proteins - Cdnas Encoding Type-I, Type-Ii, and Type-Iii Lhc-I Polypeptides from the Gymnosperm Scots Pine
    Molecular & General Genetics: 1991 229:67-76
  159. Jansson S, Selstam E, Gustafsson P
    The Rapidly Phosphorylated 25-Kda Polypeptide of the Light-Harvesting Complex of Photosystem-Ii Is Encoded by the Type-2 Cab-Ii Genes
    Biochimica Et Biophysica Acta: 1990 1019:110-114
  160. Jansson S, Gustafsson P
    Type-I and Type-Ii Genes for the Chlorophyll-a/B-Binding Protein in the Gymnosperm Pinus-Sylvestris (Scots Pine) - Cdna Cloning and Sequence-Analysis
    Plant Molecular Biology: 1990 14:287-296