Causes of cell death following exposure to different fungicides and heat

Pueyo, Carmen; Olmedo, Enrique Cerdá

doi:10.1016/0147-5975(81)90011-6

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Cited by 6 publications

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Spore activation by acetate, propionate and heat in Phycomyces mutants

Rivero

Cerdá‐Olmedo

1987

Mol Gen Genet

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Exposure to heat, acetate, or propionate activates the spores of the fungus Phycomyces blakesleeanus and allows them to germinate. Using counterselection with the antibiotic N-glycosyl-polyfungin, seven mutants were isolated on the basis of decreased spore activation by propionate. The nine mutants showed decreased activation by both chemicals and by heat, increased heat lethality, and altered patterns of trehalase activation. These and other observations indicate that spore activation by the three agents and spore death by heat are mediated by the same cellular component(s), which is probably involved in the regulation of cyclic AMP concentration.

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