期刊
FRONTIERS IN PLANT SCIENCE
卷 7, 期 -, 页码 -出版社
FRONTIERS MEDIA SA
DOI: 10.3389/fpls.2016.00774
关键词
Arabidopsis; allyl GSL; GSL-induced responses; plant growth; defense metabolism
资金
- European Community [PIOF-GA-2010-275286]
- NSF DBI [820580]
- NSF MCB [1330337]
- USDA National Institute of Food and Agriculture [CA-D-PLS-7033-H]
- Danish National Research Foundation [DNRF99]
- Direct For Biological Sciences
- Div Of Molecular and Cellular Bioscience [1330337] Funding Source: National Science Foundation
Glucosinolates (GSLs) play an important role in plants as direct mediators of biotic and abiotic stress responses. Recent work is beginning to show that the GSLs can also inducing complex defense and growth networks. However, the physiological significance of these GSL-induced responses and the molecular mechanisms by which GSLs are sensed and/or modulate these responses are not understood. To identify these potential mechanisms within the plant and how they may relate to the endogenous GSLs, we tested the regulatory effect of exogenous allyl GSL application on growth and defense metabolism across sample of Arabidopsis thaliana accessions. We found that application of exogenous allyl GSL had the ability to initiate changes in plant biomass and accumulation of defense metabolites that genetically varied across accessions. This growth effect was related to the allyl GSL side-chain structure. Utilizing this natural variation and mutants in genes within the GSL pathway we could show that the link between allyl GSL and altered growth responses are dependent upon the function of known genes controlling the aliphatic GSL pathway.
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