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Re: [compost_tea] pathogenic fungi
Can pathogens be aerobic or anaerobic?
Yes. Fungi that cause necrosis on roots need to be able to function in aerobic conditions. But they will generally be outcompeted in the root zone by beneficial aerobic fungi.
That's why the "worst" fungal pathogens tend to do better in slightly oxygen reduced to anaerobic conditions. the competitors are gone or not functional.
Once oxygen content drops to really low oxygen conditions, true anaerobic conditions, the fungal pathogens can't grow either. So it's a range thing.
Elaine Ingham
President, Soil Foodweb Inc.
www.soilfoodweb.com
SFI Oregon, USA
SFI Australia
SFI New York
SFI Europe
SFI New Zealand
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