Mycorrhizal fungal diversity determines plant biodiversity, ecosystem variability and productivity

Article Abstract:

Mechanisms controlling plant biodiversity continue to be debated. There has been little attention paid to the effects of microbe-plant interactions, such as mycorrhizal symbiosis, on plant biodiveristy, and ecosystem variability. Arbuscular mycorrhizal fungi (AMF) are plentiful in most ecosystems and their presence increases plant biodiversity. It has been shown that AMF richness plays an important part in plant species composition, biodiversity, and productivity in artificial microcosms and macrocosms.

Observations, Biological diversity, Biodiversity, Biotic communities

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Ploughing up the wood-wide web?

Article Abstract:

The diversity of arbuscular mycorrhizal fungi is much lower in arable sites than in woodland sites. This situation is probably a reflection of elements of the argonomic regime such as fertilization and ploughing. Research involving examining roots from five abundant woodland plant species at four sites within a broadleaved wood dominated by oak and sycamore indicates that the dominant arbuscular mycorrhizal fungal type is a putative G. mosseae not present in woodland.

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Polyphenol control of nitrogen release from pine litter

Article Abstract:

Pinus muricata is able to survive in strongly acidic and infertile soils because the polyphenol concentration of its decomposing litter minimizes the nitrogen loss. The nitrogen is immobilized into a form that Pinus muricata's associate mycorrhizae is able to acquire more readily than other plants, increasing the plant's competitive advantage and allowing for long-term survival.

Composition, Pine, Pines, Polyphenols, Tannins

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