Gibberellin antagonizes jasmonate-induced defense against Meloidogyne graminicola in rice

Gibberellin antagonizes jasmonate-induced defense against Meloidogyne graminicola in rice

© 2018 The Authors. New Phytologist © 2018 New Phytologist Trust.

Bibliographische Detailangaben
Veröffentlicht in:The New phytologist. - 1984. - 218(2018), 2 vom: 01. Apr., Seite 646-660
1. Verfasser: Yimer, Henok Zemene (VerfasserIn)
Weitere Verfasser: Nahar, Kamrun, Kyndt, Tina, Haeck, Ashley, Van Meulebroek, Lieven, Vanhaecke, Lynn, Demeestere, Kristof, Höfte, Monica, Gheysen, Godelieve
Format: Online-Aufsatz
Sprache:English
Veröffentlicht: 2018
Zugriff auf das übergeordnete Werk:The New phytologist
Schlagworte:Journal Article Research Support, Non-U.S. Gov't DELLA Meloidogyne graminicola SLR1 auxin gibberellin (GA) jasmonate (JA) rice Cyclopentanes mehr... Gibberellins Indoleacetic Acids Oxylipins Plant Growth Regulators Plant Proteins jasmonic acid 6RI5N05OWW indoleacetic acid 6U1S09C61L
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520 |a Gibberellin (GA) regulates various plant growth and developmental processes, but its role in pathogen attack, and especially nematode-plant interactions, still remains to be elucidated. An in-depth characterization of the role of GA in nematode infection was conducted using mutant lines of rice, chemical inhibitors, and phytohormone measurements. Our results showed that GA influences rice-Meloidogyne graminicola interactions in a concentration-dependent manner. Foliar spray of plants with a low concentration of gibberellic acid enhanced nematode infection. Biosynthetic and signaling mutants confirmed the importance of gibberellin for rice susceptibility to M. graminicola infection. Our study also demonstrates that GA signaling suppresses jasmonate (JA)-mediated defense against M. graminicola, and likewise the JA-induced defense against M. graminicola requires SLENDER RICE1 (SLR1)-mediated repression of the GA pathway. In contrast to observations from other plant-pathogen interactions, GA plays a dominant role over JA in determining susceptibility to M. graminicola in rice. This GA-induced nematode susceptibility was largely independent of auxin biosynthesis, but relied on auxin transport. In conclusion, we showed that GA-JA antagonistic crosstalk is at the forefront of the interaction between rice and M. graminicola, and SLR1 plays a central role in the JA-mediated defense response in rice against this nematode 
650 4 |a Journal Article 
650 4 |a Research Support, Non-U.S. Gov't 
650 4 |a DELLA 
650 4 |a Meloidogyne graminicola 
650 4 |a SLR1 
650 4 |a auxin 
650 4 |a gibberellin (GA) 
650 4 |a jasmonate (JA) 
650 4 |a rice 
650 7 |a Cyclopentanes  |2 NLM 
650 7 |a Gibberellins  |2 NLM 
650 7 |a Indoleacetic Acids  |2 NLM 
650 7 |a Oxylipins  |2 NLM 
650 7 |a Plant Growth Regulators  |2 NLM 
650 7 |a Plant Proteins  |2 NLM 
650 7 |a jasmonic acid  |2 NLM 
650 7 |a 6RI5N05OWW  |2 NLM 
650 7 |a indoleacetic acid  |2 NLM 
650 7 |a 6U1S09C61L  |2 NLM 
700 1 |a Nahar, Kamrun  |e verfasserin  |4 aut 
700 1 |a Kyndt, Tina  |e verfasserin  |4 aut 
700 1 |a Haeck, Ashley  |e verfasserin  |4 aut 
700 1 |a Van Meulebroek, Lieven  |e verfasserin  |4 aut 
700 1 |a Vanhaecke, Lynn  |e verfasserin  |4 aut 
700 1 |a Demeestere, Kristof  |e verfasserin  |4 aut 
700 1 |a Höfte, Monica  |e verfasserin  |4 aut 
700 1 |a Gheysen, Godelieve  |e verfasserin  |4 aut 
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773 1 8 |g volume:218  |g year:2018  |g number:2  |g day:01  |g month:04  |g pages:646-660 
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