期刊
JOURNAL OF MICROSCOPY
卷 231, 期 2, 页码 342-348出版社
WILEY
DOI: 10.1111/j.1365-2818.2008.01999.x
关键词
arbuscular mycorrhiza; biotrophic interactions; confocal laser scanning microscopy; powdery mildew; root knot nematodes; three-dimensional reconstructions
类别
The method introduced in this article makes use of the glutaraldehyde-induced auto-fluorescence of proteins after cross-linking with glutaraldehyde for the analysis of cellular and sub-cellular structures. Because the interface of biotrophic interactions is rich in proteins, the method presented is particularly suitable for the analysis of such interactions; we have exemplified its usefulness by analyzing (1) the root feeding sites induced in roots from Arabidopsis thaliana by the root-knot nematode Meloidogyne incognita; (2) leaves from Cucurbita pepo infected by powdery mildew and (3) roots from Nicotiana tabacum colonized by the arbuscular mycorrhizal fungus Glomus intraradices. The use of confocal and multi-photon laser scanning microscopy allows three-dimensional reconstructions from optical sections of complex biotrophic interactions. In the case of root-knot nematode feeding sites, our method enabled us to simultaneously study the development of the plant xylem elements (using lignin auto-fluorescence), the nematode feeding site and the nematode itself.
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