AtSTP8, an endoplasmic reticulum-localised monosaccharide transporter from Arabidopsis, is recruited to the extrahaustorial membrane during powdery mildew infection

© 2021 The Authors New Phytologist © 2021 New Phytologist Foundation.

Détails bibliographiques
Publié dans:The New phytologist. - 1984. - 230(2021), 6 vom: 17. Juni, Seite 2404-2419
Auteur principal: Liu, Jie (Auteur)
Autres auteurs: Liu, Mengxue, Tan, Liqiang, Huai, Baoyu, Ma, Xianfeng, Pan, Qinglin, Zheng, Peijing, Wen, Yingqiang, Zhang, Qiong, Zhao, Qi, Kang, Zhensheng, Xiao, Shunyuan
Format: Article en ligne
Langue:English
Publié: 2021
Accès à la collection:The New phytologist
Sujets:Journal Article Research Support, Non-U.S. Gov't Research Support, U.S. Gov't, Non-P.H.S. Arabidopsis thaliana endoplasmic reticulum extrahaustorial membrane haustorium powdery mildew sugar transport protein Arabidopsis Proteins Monosaccharides
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520 |a Biotrophic pathogens are believed to strategically manipulate sugar transport in host cells to enhance their access to carbohydrates. However, mechanisms of sugar translocation from host cells to biotrophic fungi such as powdery mildew across the plant-haustorium interface remain poorly understood. To investigate this question, systematic subcellular localisation analysis was performed for all the 14 members of the monosaccharide sugar transporter protein (STP) family in Arabidopsis thaliana. The best candidate AtSTP8 was further characterised for its transport properties in Saccharomyces cerevisiae and potential role in powdery mildew infection by gene ablation and overexpression in Arabidopsis. Our results showed that AtSTP8 was mainly localised to the endoplasmic reticulum (ER) and appeared to be recruited to the host-derived extrahaustorial membrane (EHM) induced by powdery mildew. Functional complementation assays in S. cerevisiae suggested that AtSTP8 can transport a broad spectrum of hexose substrates. Moreover, transgenic Arabidopsis plants overexpressing AtSTP8 showed increased hexose concentration in leaf tissues and enhanced susceptibility to powdery mildew. Our data suggested that the ER-localised sugar transporter AtSTP8 may be recruited to the EHM where it may be involved in sugar acquisition by haustoria of powdery mildew from host cells in Arabidopsis 
650 4 |a Journal Article 
650 4 |a Research Support, Non-U.S. Gov't 
650 4 |a Research Support, U.S. Gov't, Non-P.H.S. 
650 4 |a Arabidopsis thaliana 
650 4 |a endoplasmic reticulum 
650 4 |a extrahaustorial membrane 
650 4 |a haustorium 
650 4 |a powdery mildew 
650 4 |a sugar transport protein 
650 7 |a Arabidopsis Proteins  |2 NLM 
650 7 |a Monosaccharides  |2 NLM 
700 1 |a Liu, Mengxue  |e verfasserin  |4 aut 
700 1 |a Tan, Liqiang  |e verfasserin  |4 aut 
700 1 |a Huai, Baoyu  |e verfasserin  |4 aut 
700 1 |a Ma, Xianfeng  |e verfasserin  |4 aut 
700 1 |a Pan, Qinglin  |e verfasserin  |4 aut 
700 1 |a Zheng, Peijing  |e verfasserin  |4 aut 
700 1 |a Wen, Yingqiang  |e verfasserin  |4 aut 
700 1 |a Zhang, Qiong  |e verfasserin  |4 aut 
700 1 |a Zhao, Qi  |e verfasserin  |4 aut 
700 1 |a Kang, Zhensheng  |e verfasserin  |4 aut 
700 1 |a Xiao, Shunyuan  |e verfasserin  |4 aut 
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