Cancelled!!!! Seminar with David Nelson
Date:
Monday, May 28, 2012 15:00 - 16:00
Duration:
1 Hour
Categories:
Email
Contact info
Oliver Keech
This Seminar is cancelled!!!!
David Nelson
From Department of genetics, University of Georgia, Athens, USA
Place: Lilla horsalen, 15.00
Title:
Smoke and mirrors: The curious connection between post-fire germination and shoot branching control
Abstract:
Karrikins are a class of butenolide compounds identified in smoke that have prominent roles in activating post-fire seed germination. Genetic studies performed in Arabidopsis thaliana demonstrated that the F-box protein MAX2 is required for karrikin responses. MAX2 is also necessary for responses to strigolactones, a class of plant hormones originally identified in host root exudates as highly potent germination stimulants of parasitic weeds. Strigolactones are also known to have roles in the control of shoot branching and recruitment of arbuscular mycorrhizal fungi - neither of which processes are influenced by karrikins. Two homologous proteins, KAI2 and D14, have now been shown to mediate strigolactone and karrikin-specific responses in Arabidopsis. Through genetic suppressor screens we are identifying additional components of the MAX2-dependent karrikin and strigolactone signaling pathways.
David Nelson
From Department of genetics, University of Georgia, Athens, USA
Place: Lilla horsalen, 15.00
Title:
Smoke and mirrors: The curious connection between post-fire germination and shoot branching control
Abstract:
Karrikins are a class of butenolide compounds identified in smoke that have prominent roles in activating post-fire seed germination. Genetic studies performed in Arabidopsis thaliana demonstrated that the F-box protein MAX2 is required for karrikin responses. MAX2 is also necessary for responses to strigolactones, a class of plant hormones originally identified in host root exudates as highly potent germination stimulants of parasitic weeds. Strigolactones are also known to have roles in the control of shoot branching and recruitment of arbuscular mycorrhizal fungi - neither of which processes are influenced by karrikins. Two homologous proteins, KAI2 and D14, have now been shown to mediate strigolactone and karrikin-specific responses in Arabidopsis. Through genetic suppressor screens we are identifying additional components of the MAX2-dependent karrikin and strigolactone signaling pathways.