Difference between revisions of "Mycorrhiza"

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* "A mycorrhiza is a symbiotic (generally mutualistic, but occasionally weakly pathogenic) association between a fungus and the roots of a vascular plant. In a mycorrhizal association, the fungus colonizes the host plant's roots, either intracellularly as in arbuscular mycorrhizal fungi (AMF), or extracellularly as in ectomycorrhizal fungi. They are an important component of soil life and soil chemistry.<ref>[http://en.wikipedia.org/wiki/Mycorrhiza Mycorrhiza - Wikipedia]</ref>
 
* "A mycorrhiza is a symbiotic (generally mutualistic, but occasionally weakly pathogenic) association between a fungus and the roots of a vascular plant. In a mycorrhizal association, the fungus colonizes the host plant's roots, either intracellularly as in arbuscular mycorrhizal fungi (AMF), or extracellularly as in ectomycorrhizal fungi. They are an important component of soil life and soil chemistry.<ref>[http://en.wikipedia.org/wiki/Mycorrhiza Mycorrhiza - Wikipedia]</ref>
 
* "The symbiotic association of the mycelium of a fungus with the roots of a seed plant"<ref>[http://www.merriam-webster.com/dictionary/mycorrhiza Merriam-Webster]</ref>
 
* "The symbiotic association of the mycelium of a fungus with the roots of a seed plant"<ref>[http://www.merriam-webster.com/dictionary/mycorrhiza Merriam-Webster]</ref>
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== How many plants form mycorrhiza ==
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* "While it is clear  that the majority of plants form mycorrhizas, the exact percentage is uncertain,  but it is likely to lie somewhere between 80% and 90%. In many of these associations  between 10% and 30% of the food produced by the plant moves through to the fungi."<ref>[
  
 
== Chunks of information ==
 
== Chunks of information ==

Revision as of 20:04, 12 June 2012

Arbuscular mycorrhiza seen under microscope. Arbuscular mycorrhiza are those where the fungus penetrates the outer layer of the cells of the roots of a plant, in this case flax.
Topic in Gardening courses

A mycorrhiza[1] is a symbiotic (generally mutualistic, but occasionally weakly pathogenic) association between a fungus and the roots of a higher plant. In a mycorrhizal association, the fungus colonizes the host plant's roots, either intracellularly or extracellularly. They are an important component of soil life.[2]

Definitions of mycorrhiza

  • "Mycorrhizas are symbiotic associations essential for one or both partners, between a fungus (specialised for life in soils and plants) and a root (or other substrate-contacting organ) of a living plant, that is primarily responsible for nutrient transfer. Mycorrhizas occur in a specialised plant organ where intimate contact results from synchronised plant-fungus development."[3]
  • "A mycorrhiza is a symbiotic (generally mutualistic, but occasionally weakly pathogenic) association between a fungus and the roots of a vascular plant. In a mycorrhizal association, the fungus colonizes the host plant's roots, either intracellularly as in arbuscular mycorrhizal fungi (AMF), or extracellularly as in ectomycorrhizal fungi. They are an important component of soil life and soil chemistry.[4]
  • "The symbiotic association of the mycelium of a fungus with the roots of a seed plant"[5]

How many plants form mycorrhiza

  • "While it is clear that the majority of plants form mycorrhizas, the exact percentage is uncertain, but it is likely to lie somewhere between 80% and 90%. In many of these associations between 10% and 30% of the food produced by the plant moves through to the fungi."Cite error: Closing </ref> missing for <ref> tag

Ericoid mycorrhiza

Ericoid mycorrhiza[6] are a symbiotic relationship between fungi and the roots of plants from the order Ericales (for example tea, blueberry, azalea).

See also

References

External links

Videos

  • Arbuscular mycorrhiza A collection of videos in the Mashpedia Life Encyclopedia.
  • "Ever wonder how mycorrhizal fungi improve plant nutrition? This video shows how mycorrhizal hyphae access, unlock and transport soil nutrients."

  • "Michael Melendrez talks about the role of Mycorrhiza: endo/ecto." Part of the content: Grass roots of any kinds of grass grow with many mycorrhiza, which is why lawns and grass land still keeps much of their fertility despite otherwise wrong agricultural methods.