Education: Doctorate in plant pathology from the University of California-Berkeley, 1967.
To produce the inoculum, the fungus is grown in a proprietary soil medium in plastic-lined bins. A crop like Sudan grass is also planted in the bins, because the fungi won’t grow without access to roots.
“You can’t grow them in a test tube,” Linderman said.
It usually requires four to five months for the mycorrhizal fungi to fully pervade the bins, at which point the fungus, medium and roots are granulated. The mixture is then bagged and is ready to use for inoculating crops with the fungus.
Bacteria that live on the mycorrhizal fungus create acids that break these bonds, freeing up the nutrients for the fungus to absorb.
“I want to deliver them right from the get-go,” he said.
Bob Linderman
Occupation: Owner of Plant Health, a research and consulting firm, and Santiam Organics, which makes mycorrhizal fungi inoculum.
My own studies have indicated that when mycorrhizae form, there is an increase in the numbers of potential antagonists to the pathogens. The selective pressure for those antagonistic bacteria to increase in the soil around and influenced by roots (rhizosphere soil, now called the mycorrhizosphere soil, influenced by both the roots and the mycorrhizal fungal strands) is distinctly greater than rhizosphere soil around roots that are not mycorrhizal. The net result is that plants with mycorrhizae have less root disease than plants without, due to the increased antagonistic potential of the soil to pathogens.
http://www.bashanfoundation.org/contributions/Linderman-R/lindermanpub.html
even under salty conditions - we have a paper on very high salt conditions - pre-inoculated with mycorrhizal fungal they tolerated the salt....
So the key is to inoculate the seed right after planting.
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