Exogenous RNA interference exposes contrasting roles for sugar exudation in host-finding by plant pathogens
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- 作者：Neil D. Warnocka ; Leonie Wilsona ; Juan V. Canet-Pereza ; Thomas Fleminga ; Colin C. Flemingb ; Aaron G. Maulea ; Johnathan J. Dalzella ; j.dalzell@qub.ac.uk" class="auth_mail" title="E-mail the corresponding author
- 关键词：exoRNAi ; Meloidogyne incognita ; Globodera pallida ; Sugar ; Root exudate
- 刊名：International Journal for Parasitology
- 出版年：2016
- 出版时间：July 2016
- 年：2016
- 卷：46
- 期：8
- 页码：473-477
- 全文大小：721 K
文摘
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Sugar transporter genes 1 and 2 (STP1, STP2) were silenced in tomato seedlings using exogenously applied dsRNA.
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Silencing STP1 and STP2 reduced glucose and fructose concentrations in root exudates, but had no impact on xylose.
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Meloidogyne incognita is attracted to and activated by the monosaccharide sugars glucose and fructose.
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Globodera pallida a specific pathogen of Solanaceae plants is not attracted to, or activated by the monosaccharides.
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Tomato root exudate from STP1- and STP2-silenced seedlings failed to attract/activate M. incognita as strongly as controls.