An active factor from tomato root exudates plays an important role in efficient establishment of mycorrhizal symbiosis.

Root exudates play an important role in the early signal exchange between host plants and arbuscular mycorrhizal fungi. M161, a pre-mycorrhizal infection (pmi) mutant of the tomoto (Solanum lycopersicum) cultivar Micro-Tom, fails to establish normal arbuscular mycorrhizal symbioses, and produces exu...

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Autores principales:	Shubin Sun, Jingjing Wang, Lingling Zhu, Dehua Liao, Mian Gu, Lixuan Ren, Yoram Kapulnik, Guohua Xu
Formato:	article
Lenguaje:	EN
Publicado:	Public Library of Science (PLoS) 2012
Materias:	Medicine R Science Q
Acceso en línea:	https://doaj.org/article/b0bf13994b9949a3ba61b48a60d6e536
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spelling	oai:doaj.org-article:b0bf13994b9949a3ba61b48a60d6e5362021-11-18T07:08:06ZAn active factor from tomato root exudates plays an important role in efficient establishment of mycorrhizal symbiosis.1932-620310.1371/journal.pone.0043385https://doaj.org/article/b0bf13994b9949a3ba61b48a60d6e5362012-01-01T00:00:00Zhttps://www.ncbi.nlm.nih.gov/pmc/articles/pmid/22927963/?tool=EBIhttps://doaj.org/toc/1932-6203Root exudates play an important role in the early signal exchange between host plants and arbuscular mycorrhizal fungi. M161, a pre-mycorrhizal infection (pmi) mutant of the tomoto (Solanum lycopersicum) cultivar Micro-Tom, fails to establish normal arbuscular mycorrhizal symbioses, and produces exudates that are unable to stimulate hyphal growth and branching of Glomus intraradices. Here, we report the identification of a purified active factor (AF) that is present in the root exudates of wild-type tomato, but absent in those of M161. A complementation assay using the dual root organ culture system showed that the AF could induce fungal growth and branching at the pre-infection stage and, subsequently, the formation of viable new spores in the M161 background. Since the AF-mediated stimulation of hyphal growth and branching requires the presence of the M161 root, our data suggest that the AF is essential but not sufficient for hyphal growth and branching. We propose that the AF, which remains to be chemically determined, represents a plant signal molecule that plays an important role in the efficient establishment of mycorrhizal symbioses.Shubin SunJingjing WangLingling ZhuDehua LiaoMian GuLixuan RenYoram KapulnikGuohua XuPublic Library of Science (PLoS)articleMedicineRScienceQENPLoS ONE, Vol 7, Iss 8, p e43385 (2012)
institution	DOAJ
collection	DOAJ
language	EN
topic	Medicine R Science Q
spellingShingle	Medicine R Science Q Shubin Sun Jingjing Wang Lingling Zhu Dehua Liao Mian Gu Lixuan Ren Yoram Kapulnik Guohua Xu An active factor from tomato root exudates plays an important role in efficient establishment of mycorrhizal symbiosis.
description	Root exudates play an important role in the early signal exchange between host plants and arbuscular mycorrhizal fungi. M161, a pre-mycorrhizal infection (pmi) mutant of the tomoto (Solanum lycopersicum) cultivar Micro-Tom, fails to establish normal arbuscular mycorrhizal symbioses, and produces exudates that are unable to stimulate hyphal growth and branching of Glomus intraradices. Here, we report the identification of a purified active factor (AF) that is present in the root exudates of wild-type tomato, but absent in those of M161. A complementation assay using the dual root organ culture system showed that the AF could induce fungal growth and branching at the pre-infection stage and, subsequently, the formation of viable new spores in the M161 background. Since the AF-mediated stimulation of hyphal growth and branching requires the presence of the M161 root, our data suggest that the AF is essential but not sufficient for hyphal growth and branching. We propose that the AF, which remains to be chemically determined, represents a plant signal molecule that plays an important role in the efficient establishment of mycorrhizal symbioses.
format	article
author	Shubin Sun Jingjing Wang Lingling Zhu Dehua Liao Mian Gu Lixuan Ren Yoram Kapulnik Guohua Xu
author_facet	Shubin Sun Jingjing Wang Lingling Zhu Dehua Liao Mian Gu Lixuan Ren Yoram Kapulnik Guohua Xu
author_sort	Shubin Sun
title	An active factor from tomato root exudates plays an important role in efficient establishment of mycorrhizal symbiosis.
title_short	An active factor from tomato root exudates plays an important role in efficient establishment of mycorrhizal symbiosis.
title_full	An active factor from tomato root exudates plays an important role in efficient establishment of mycorrhizal symbiosis.
title_fullStr	An active factor from tomato root exudates plays an important role in efficient establishment of mycorrhizal symbiosis.
title_full_unstemmed	An active factor from tomato root exudates plays an important role in efficient establishment of mycorrhizal symbiosis.
title_sort	active factor from tomato root exudates plays an important role in efficient establishment of mycorrhizal symbiosis.
publisher	Public Library of Science (PLoS)
publishDate	2012
url	https://doaj.org/article/b0bf13994b9949a3ba61b48a60d6e536
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An active factor from tomato root exudates plays an important role in efficient establishment of mycorrhizal symbiosis.

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