Biocontrol of a root rot of kale by Muscodor albus strain MFC2
2009
Worapong, Jeerapun | Strobel, Gary A.
Pythium ultimum is an oomycetous root rot pathogen that causes significant crop production losses on many crops including kale (Brassica oleracea), an economically important vegetable in Thailand. An endophytic fungus from Thailand designated Muscodor albus MFC2 controlled P. ultimum both in vitro and on kale seedlings grown under outdoor conditions via the production of volatile antibiotics. Ten-day old M. albus MFC2 PDA cultures killed P. ultimum in vitro. Thoroughly mixing three PDA plates of 10-day old M. albus MFC2 into a 500 g mixture of commercial soil and field soil did not adversely affect kale seed germination. The same amount of M. albus MFC2 could restore seedling emergence in P. ultimum inoculated soil to a level close to that of a non-infested control. In addition, M. albus MFC2 did not cause any disease symptoms, but rather seemed to promote the growth of kale in the presence or absence of P. ultimum for up to eight weeks after planting.
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