Colonization of transgenic tobacco constitutively expressing pathogenesis-related proteins by the vesicular- arbuscular mycorrhizal fungus Glomus mosseae

Article Abstract:

Colonization of tobacco plants by the beneficial symbiotic vesicular-arbuscular mycorrhizal fungus Glomus mosseae does not appear to be inhibited by constitutive expression of most pathogenesis-related proteins (PRs). Colonization by G. mosseae was unaffected by high levels of expression of either the basic chitinases and beta-1,3-glucanases or most acidic isoforms. An acidic beta-1,3-glucanase did delay G. mosseae colonization, however, indicating some potential for damage to symbiotic activities by PR expression.

Methods, Proteins, Immunoblotting

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Cellular events involved in survival of individual arbuscular mycorrhizal symbionts growing in the absence of the host

Article Abstract:

Research was conducted to examine the early stages of mycelial growth of arbuscular mycorrhizal (AM) symbionts using combined time-lapse and video-enhanced light microscopy, image analysis and immunodetection. Objective was to gain an insight into cell events that lead to the arrest of mycelial growth. Results provide evidences of a survival strategy evolved by the obligately biotrophic AM fungi which allows long-term infectivity of mycelium growing in the absence of the host.

Growth, Molds (Fungi), Host plants

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Cooccurring Gentiana verna and Gentiana acaulis and their neighboring plants in two Swiss upper montane meadows harbor distinct arbuscular mycorrhizal fungal communities

Article Abstract:

The article investigates the community composition of arbuscular mycorrhizal fungi (AMF) in the roots of Gentiana verna and Gentiana acaulis and their neighboring plants in two Swiss upper montane meadows is investigated. The host plant species is found to have a major influence on the AMF communities in the roots.

Europe, Science & research, Gentian root, Gentiana, Gentians, Report

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