Ultrastructural and ultracytochemical features of a glomus tenuis mycorrhiza
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TLDR
The modifications occurring in the host-fungus interface during Glomus tenuis mycorrhiza development are however very similar to those that have been described in several myCorrhizae formed by coarse vesicular-arbuscular endophytes.Abstract:
SUMMARY
The ultrastructural organization and some cytochemical features (protein and polysaccharide distribution) of the mycorrhiza formed by Glomus tenuis in raspberry roots have been investigated. Certain aspects of the fine mycorrhizal endophyte (smaller hyphae, thinner walls, distinct two-layered wall structure following the PATAg test for polysaccharides, complete absence of septa) distinguish it from the coarse vesicular–arbuscular mycorrhizal fungi. The modifications occurring in the host-fungus interface during Glomus tenuis mycorrhiza development are however very similar to those that have been described in several mycorrhizae formed by coarse vesicular-arbuscular endophytes.read more
Citations
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Structure and function of the interfaces in biotrophic symbioses as they relate to nutrient transport.
S. E. Smith,F. A. Smith +1 more
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The physiology of vesicular-arbuscular mycorrhizal roots
TL;DR: Improved phosphate nutrition is not always sufficient to explain the observed effects of vesicular-arbuscular mycorrhizae on the host plant's physiology, and certain specialized enzyme activities are specifically associated with this alternative pathway of phosphate nutrition in mycor RH plants.
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Systematics and taxonomy of the arbuscular endomycorrhizal fungi (Glomales)- a possible way forward
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Mycorrhizal infection, phosphorus uptake, and phenology in Ranunculus adoneus: implications for the functioning of mycorrhizae in alpine systems.
R. B. Mullen,Steven K. Schmidt +1 more
TL;DR: Monitoring of natural populations of the perennial alpine herb, Ranunculus adoneus, found that arbusculus, fungal structures used for nutrient transfer, were present when maximum phosphorus accumulation was occurring and their presence corresponded with increased phosphorus accumulation in both the roots and shoots of R. ad oneus.
References
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Journal Article
Mise en evidence des polysaccharides sur coupes fines en microscopie electronique
Journal ArticleDOI
Translocation and transfer of nutrients in vesicular‐arbuscular mycorrhizas
Karen M. Cooper,Peter B. Tinker +1 more
TL;DR: Trifolium repens or Allium cepa (onion) infected with the mycorrhizal fungus Glomus mosseae were grown in split-plate cultures, so that nutrients could be supplied to the external hyphae only.
Journal ArticleDOI
Translocation and transfer of nutrients in vesicular-arbuscular mycorrhizas. i. the arbuscule and phosphorus transfer: a quantitative ultrastructural study
Guy Cox,Peter B. Tinker +1 more
Journal ArticleDOI
Species and mycorrhizal infections of New Zealand endogonaceae
TL;DR: The morphology of synthesized vesicular-arbuscular mycorrhizas was affected by the nutritional status of the host, the host species, and the species of fungus.
Journal ArticleDOI
Ultrastructure of the host-fungus interface in a vesicular-arbuscular mycorrhiza
Guy Cox,F. E. Sanders +1 more
TL;DR: An ultrastructural study was made of the vesicular-arbuscular mycorrhiza formed by Endogone (Glomus) mosseae with roots of Allium cepa, which consists of highly branched hyphae that have a characteristic reticulate vacuolation.
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