Jasmonic acid-dependent regulation of seed dormancy following maternal herbivory in Arabidopsis

© 2017 The Authors. New Phytologist © 2017 New Phytologist Trust.

Bibliographische Detailangaben
Veröffentlicht in:The New phytologist. - 1979. - 214(2017), 4 vom: 22. Juni, Seite 1702-1711
1. Verfasser: Singh, Prashant (VerfasserIn)
Weitere Verfasser: Dave, Anuja, Vaistij, Fabian E, Worrall, Dawn, Holroyd, Geoff H, Wells, Jonathan G, Kaminski, Filip, Graham, Ian A, Roberts, Michael R
Format: Online-Aufsatz
Sprache:English
Veröffentlicht: 2017
Zugriff auf das übergeordnete Werk:The New phytologist
Schlagworte:Journal Article Arabidopsis thaliana abscisic acid defence dormancy herbivory jasmonic acid priming seeds Cyclopentanes mehr... Oxylipins Plant Growth Regulators 6RI5N05OWW
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520 |a Maternal experience of abiotic environmental factors such as temperature and light are well known to control seed dormancy in many plant species. Maternal biotic stress alters offspring defence phenotypes, but whether it also affects seed dormancy remains unexplored. We exposed Arabidopsis thaliana plants to herbivory and investigated plasticity in germination and defence phenotypes in their offspring, along with the roles of phytohormone signalling in regulating maternal effects. Maternal herbivory resulted in the accumulation of jasmonic acid-isoleucine and loss of dormancy in seeds of stressed plants. Dormancy was also reduced by engineering seed-specific accumulation of jasmonic acid in transgenic plants. Loss of dormancy was dependent on an intact jasmonate signalling pathway and was associated with increased gibberellin content and reduced abscisic acid sensitivity during germination. Altered dormancy was only observed in the first generation following herbivory, whereas defence priming was maintained for at least two generations. Herbivory generates a jasmonic acid-dependent reduction in seed dormancy, mediated by alteration of gibberellin and abscisic acid signalling. This is a direct maternal effect, operating independently from transgenerational herbivore resistance priming 
650 4 |a Journal Article 
650 4 |a Arabidopsis thaliana 
650 4 |a abscisic acid 
650 4 |a defence 
650 4 |a dormancy 
650 4 |a herbivory 
650 4 |a jasmonic acid 
650 4 |a priming 
650 4 |a seeds 
650 7 |a Cyclopentanes  |2 NLM 
650 7 |a Oxylipins  |2 NLM 
650 7 |a Plant Growth Regulators  |2 NLM 
650 7 |a jasmonic acid  |2 NLM 
650 7 |a 6RI5N05OWW  |2 NLM 
700 1 |a Dave, Anuja  |e verfasserin  |4 aut 
700 1 |a Vaistij, Fabian E  |e verfasserin  |4 aut 
700 1 |a Worrall, Dawn  |e verfasserin  |4 aut 
700 1 |a Holroyd, Geoff H  |e verfasserin  |4 aut 
700 1 |a Wells, Jonathan G  |e verfasserin  |4 aut 
700 1 |a Kaminski, Filip  |e verfasserin  |4 aut 
700 1 |a Graham, Ian A  |e verfasserin  |4 aut 
700 1 |a Roberts, Michael R  |e verfasserin  |4 aut 
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773 1 8 |g volume:214  |g year:2017  |g number:4  |g day:22  |g month:06  |g pages:1702-1711 
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