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Karrikin and cyanohydrin smoke signals provide clues to new endogenous plant signaling compounds
Citation
Flematti, GR and Waters, MT and Scaffidi, A and Merritt, DJ and Ghisalberti, EL and Dixon, KW and Smith, SM, Karrikin and cyanohydrin smoke signals provide clues to new endogenous plant signaling compounds, Molecular Plant, 6, (1) pp. 29-37. ISSN 1674-2052 (2013) [Refereed Article]
Copyright Statement
Copyright 2012 The Author
Abstract
Two new types of signaling compounds have been discovered in wildfire smoke due to their ability to
stimulate seed germination. The first discovered were karrikins, which share some structural similarity with the strigolactone
class of plant hormones, and both signal through a common F-box protein. However, karrikins and strigolactones
operate through otherwise distinct signaling pathways, each distinguished by a specific α/β hydrolase protein. Genetic
analysis suggests that plants contain endogenous compounds that signal specifically through the karrikin pathway.
The other active compounds discovered in smoke are cyanohydrins that release germination-stimulating cyanide upon
hydrolysis. Cyanohydrins occur widely in plants and have a role in defense against other organisms, but an additional
role in endogenous cyanide signaling should also now be considered.
Item Details
Item Type: | Refereed Article |
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Keywords: | fire, smoke, karrikins, strigolactones, cyanohydrins, cyanide, seed germination, Arabidopsis thaliana |
Research Division: | Biological Sciences |
Research Group: | Plant biology |
Research Field: | Plant physiology |
Objective Division: | Expanding Knowledge |
Objective Group: | Expanding knowledge |
Objective Field: | Expanding knowledge in the biological sciences |
UTAS Author: | Smith, SM (Professor Steven Smith) |
ID Code: | 101440 |
Year Published: | 2013 |
Web of Science® Times Cited: | 77 |
Deposited By: | Plant Science |
Deposited On: | 2015-06-24 |
Last Modified: | 2017-11-01 |
Downloads: | 0 |
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