Johnboy wrote:Mycorrhizal fungi are needed by some plants, absolutely critical for other plants, and are probably detrimental for other plants.
What bothers me is that none of the plants are named so how the devil are we to try and decipher what is what.
JB.
Nature's Babe wrote:Well Johnboy actually she does mention them, perhaps if you had read further, you would have come accross this
Well, there is not much specific naming in the extract you quote. And there is a good deal of surmise. As for the language - it's either highly specialist and opaque to the general reader, or it's mumbo-jumbo. I have put in green what is pure surmise or imprecision and in red what I do not understand without looking in a scientific dictionary.
You need to know what kind of plant you have, but in general, very early successional plant species, such as many (weeds, brassicas, mustards and kale crops do not require Mycorrhizal fungal and may be harmed by Mycorrhizal fungi. Annual vegetables, flowers, grasses and row crops or broad acre crops need vesicular-arbuscular Mycorrhizal fungi. Most evergreen plants require ectomycorrhizal fungi, and blueberry and ericoid plants require ericoid Mycorrhizal fungi.
The percentage of the root system that must be colonized has not been fully established in the Mycorrhizal literature, mostly because determining benefit is relative. Mycorrhizal fungi can protect the roots from disease organisms, through simple spatial interference, by improving nutrient uptake, and by producing glomulin and other metabolites that inhibit disease. Stress in plants can be reduced because the Mycorrhizal fungi can solubilize mineral nutrients from plant not-available forms to plant available forms, and translocate those nutrients to the root system in exchange for sugars provided by the plant.
As for Dr Ingham's worldwide reputation, a Google search contains no references to her from the wider scientific community - all the the links being to her own websites or references to her on permaculture and similar "alternative" sites.
A similar thing happens if you Google Paul Stamets.