Root-knot nematodes induce pattern-triggered immunity in Arabidopsis thaliana roots

Bibliographische Detailangaben
Veröffentlicht in:	The New phytologist. - 1979. - 211(2016), 1 vom: 18. Juli, Seite 276-87
1. Verfasser:	Teixeira, Marcella A (VerfasserIn)
Weitere Verfasser:	Wei, Lihui, Kaloshian, Isgouhi
Format:	Online-Aufsatz
Sprache:	English
Veröffentlicht:	2016
Zugriff auf das übergeordnete Werk:	The New phytologist
Schlagworte:	Journal Article Arabidopsis thaliana BAK1 Meloidogyne incognita WRKY11 camalexin glucosinolate pattern-triggered immunity root-knot nematodes (RKNs) Arabidopsis Proteins mehr... Atmyb5 protein, Arabidopsis Glucosinolates Indoles Pathogen-Associated Molecular Pattern Molecules Thiazoles Transcription Factors WRKY11 protein, Arabidopsis LecRK-I.9 protein, Arabidopsis EC 2.7.- Protein Kinases BAK1 protein, Arabidopsis EC 2.7.1.- FLS2 protein, Arabidopsis Protein Serine-Threonine Kinases EC 2.7.11.1

Beschreibung
Zusammenfassung:	© 2016 The Authors. New Phytologist © 2016 New Phytologist Trust. Root-knot nematodes (RKNs; Meloidogyne spp.) are plant parasites with a broad host range causing great losses worldwide. To parasitize their hosts, RKNs establish feeding sites in roots known as giant cells. The majority of work studying plant-RKN interactions in susceptible hosts addresses establishment of the giant cells and there is limited information on the early defense responses. Here we characterized early defense or pattern-triggered immunity (PTI) against RKNs in Arabidopsis thaliana. To address PTI, we evaluated known canonical PTI signaling mutants with RKNs and investigated the expression of PTI marker genes after RKN infection using both quantitative PCR and β-glucuronidase reporter transgenic lines. We showed that PTI-compromised plants have enhanced susceptibility to RKNs, including the bak1-5 mutant. BAK1 is a common partner of distinct receptors of microbe- and damage-associated molecular patterns. Furthermore, our data indicated that nematode recognition leading to PTI responses involves camalexin and glucosinolate biosynthesis. While the RKN-induced glucosinolate biosynthetic pathway was BAK1-dependent, the camalexin biosynthetic pathway was only partially dependent on BAK1. Combined, our results indicate the presence of BAK1-dependent and -independent PTI against RKNs in A. thaliana, suggesting the existence of diverse nematode recognition mechanisms
Beschreibung:	Date Completed 30.01.2018 Date Revised 31.03.2022 published: Print-Electronic Citation Status MEDLINE
ISSN:	1469-8137
DOI:	10.1111/nph.13893