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Author:
Date:
2017-10-20
[Abstract] In ectomycorrhizal plants, the fungal cells colonize the roots of their host plant to create new organs called ectomycorrhizae. In these new organs, the fungal cells colonize the walls of the cortical cells, bathing in the same apoplasm as the plant cells in a space named the ‘Hartig net’, where exchanges between the two partners take place. Finally, the efficiency of ectomycorrhizal fungi to improve the phosphorus nutrition of their host plants will depend on the regulation of phosphate transfer from the fungal cells to plant cells in the Hartig net through as yet unknown mechanisms. In order to investigate these mechanisms, we developed an in vitro experimental device mimicking the common apoplasm of the ectomycorrhizae (the Hartig net) to study the phosphorus metabolism in the ...
[摘要] 在外生菌根植物中，真菌细胞定植于其宿主植物的根部，以产生称为外生菌根的新器官。在这些新器官中，真菌细胞定居在皮质细胞的壁上，与称为“Hartig网”的空间中的植物细胞在同一质粒中沐浴，两地之间的交流发生。最后，外源菌根真菌提高其宿主植物的磷营养的效率将取决于通过尚未知的机制调节从真菌细胞到Hartig网中植物细胞的磷酸转移。为了研究这些机制，我们开发了一种体外实验装置，模拟外生菌根（Hartig网）的常见质粒来研究外生菌根真菌中的磷代谢。 当真菌细胞与寄主植物“Pinus pinaster”的植物细胞相关联时。该装置可用于监测从先前与 32 P-正磷酸盐一起培养的真菌的磷酸盐外排。
【背景】已知菌根真菌和植物之间的关联可以改善植物P营养（由Smith和Read，2008; Plassard和Dell，2010; Cairney，2011; ...
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