Pisolithus microcarpus isolates with contrasting abilities to colonise Eucalyptus grandis exhibit significant differences in metabolic signalling.
Vishwakarma, K., Buckley, S., Plett, J. M., Lundberg-Felten, J., Jämtgård, S., & Plett, K. L.
Fungal Biology, 128(7): 2157–2166. November 2024.
Paper
doi
link
bibtex
abstract
@article{vishwakarma_pisolithus_2024,
title = {\textit{{Pisolithus} microcarpus} isolates with contrasting abilities to colonise \textit{{Eucalyptus} grandis} exhibit significant differences in metabolic signalling},
volume = {128},
issn = {1878-6146},
url = {https://www.sciencedirect.com/science/article/pii/S1878614624001247},
doi = {10.1016/j.funbio.2024.09.001},
abstract = {Biotic factors in fungal exudates impact plant-fungal symbioses establishment. Mutualistic ectomycorrhizal fungi play various ecological roles in forest soils by interacting with trees. Despite progress in understanding secreted fungal signals, dynamics of signal production in situ before or during direct host root contact remain unclear. We need to better understand how variability in intra-species fungal signaling at these stages impacts symbiosis with host tissues. Using the ECM model Pisolithus microcarpus, we selected two isolates (Si9 and Si14) with different abilities to colonize Eucalyptus grandis roots. Hypothesizing that distinct early signalling and metabolite profiles between these isolates would influence colonization and symbiosis, we used microdialysis to non-destructively collect secreted metabolites from either the fungus, host, or both, capturing the dynamic interplay of pre-symbiotic signalling over 48 hours. Our findings revealed significant differences in metabolite profiles between Si9 and Si14, grown alone or with a host root. Si9, with lower colonization efficiency than Si14, secreted a more diverse range of compounds, including lipids, oligopeptides, and carboxylic acids. In contrast, Si14's secretions, similar to the host's, included more aminoglycosides. This study emphasizes the importance of intra-specific metabolomic diversity in ectomycorrhizal fungi, suggesting that early metabolite secretion is crucial for establishing successful mutualistic relationships.},
number = {7},
urldate = {2024-10-11},
journal = {Fungal Biology},
author = {Vishwakarma, Kanchan and Buckley, Scott and Plett, Jonathan M. and Lundberg-Felten, Judith and Jämtgård, Sandra and Plett, Krista L.},
month = nov,
year = {2024},
keywords = {Ectomycorrhizal fungi, Eucalyptus, Indirect contact, Isolates, Metabolites, Microdialysis system},
pages = {2157--2166},
}
Biotic factors in fungal exudates impact plant-fungal symbioses establishment. Mutualistic ectomycorrhizal fungi play various ecological roles in forest soils by interacting with trees. Despite progress in understanding secreted fungal signals, dynamics of signal production in situ before or during direct host root contact remain unclear. We need to better understand how variability in intra-species fungal signaling at these stages impacts symbiosis with host tissues. Using the ECM model Pisolithus microcarpus, we selected two isolates (Si9 and Si14) with different abilities to colonize Eucalyptus grandis roots. Hypothesizing that distinct early signalling and metabolite profiles between these isolates would influence colonization and symbiosis, we used microdialysis to non-destructively collect secreted metabolites from either the fungus, host, or both, capturing the dynamic interplay of pre-symbiotic signalling over 48 hours. Our findings revealed significant differences in metabolite profiles between Si9 and Si14, grown alone or with a host root. Si9, with lower colonization efficiency than Si14, secreted a more diverse range of compounds, including lipids, oligopeptides, and carboxylic acids. In contrast, Si14's secretions, similar to the host's, included more aminoglycosides. This study emphasizes the importance of intra-specific metabolomic diversity in ectomycorrhizal fungi, suggesting that early metabolite secretion is crucial for establishing successful mutualistic relationships.
Cell adhesion maintenance and controlled separation in plants.
Baba, A. I., & Verger, S.
Frontiers in Plant Physiology, 2. February 2024.
Publisher: Frontiers
Paper
doi
link
bibtex
abstract
@article{baba_cell_2024,
title = {Cell adhesion maintenance and controlled separation in plants},
volume = {2},
issn = {2813-821X},
url = {https://www.frontiersin.org/journals/plant-physiology/articles/10.3389/fphgy.2024.1369575/full},
doi = {10.3389/fphgy.2024.1369575},
abstract = {{\textless}p{\textgreater}Cell-cell adhesion is a fundamental aspect of maintaining multicellular integrity while ensuring controlled cell and organ shedding, intercellular space formation and intrusive growth. Understanding of the precise mechanisms governing regulated cell separation, such as abscission, considerably progressed in recent decades. However, our comprehension of how plants maintain adhesion within tissues in which it is essential remains limited. Here we review some of the well-established knowledge along with latest discoveries that lead us to rethink the way developmentally controlled cell separation and adhesion maintenance may work. We also specifically explore the relationship between growth and adhesion, highlighting their similarities and coupling, and propose a plausible framework in which growth and adhesion are tightly co-regulated.{\textless}/p{\textgreater}},
language = {English},
urldate = {2024-10-09},
journal = {Frontiers in Plant Physiology},
author = {Baba, Abu Imran and Verger, Stéphane},
month = feb,
year = {2024},
note = {Publisher: Frontiers},
keywords = {Abscission, Adhesion, Cell Wall, Growth, SEPARATION},
}
\textlessp\textgreaterCell-cell adhesion is a fundamental aspect of maintaining multicellular integrity while ensuring controlled cell and organ shedding, intercellular space formation and intrusive growth. Understanding of the precise mechanisms governing regulated cell separation, such as abscission, considerably progressed in recent decades. However, our comprehension of how plants maintain adhesion within tissues in which it is essential remains limited. Here we review some of the well-established knowledge along with latest discoveries that lead us to rethink the way developmentally controlled cell separation and adhesion maintenance may work. We also specifically explore the relationship between growth and adhesion, highlighting their similarities and coupling, and propose a plausible framework in which growth and adhesion are tightly co-regulated.\textless/p\textgreater