BIOLOGICAL EFFECTS OF A MERCURY FUNGICIDE ON A N2 -FIXING BLUE-GREEN ALGA NOSTOC MUSCORUM ISOLATION AND PRELIMINARY CHARACTERIZATION OF A Hg-RESISTANT MUTANT

BIOLOGICAL EFFECTS OF A MERCURY FUNGICIDE ON A N2 -FIXING BLUE-GREEN ALGA NOSTOC MUSCORUM : ISOLATION AND PRELIMINARY CHARACTERIZATION OF A Hg-RESISTANT MUTANT

Mercuric chloride, which is used as a fungicide in tropical paddy-fields, inhibits growth (in N2 , i.e. molecular nitrogen, and 5 mM KNO3 media) and heterocyst formation (in N8 medium) in the blue-green alga Nostoc muscorum at a concentration of 0.3 μg ml-1 and above. These inhibitory effects were r...

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Veröffentlicht in:The New phytologist. - 1979. - 102(1986), 1 vom: 20. Jan., Seite 45-49
1. Verfasser: Prasad, A B (VerfasserIn)
Weitere Verfasser: Samanta, R, Vishwakarma, M L, Vaishampayan, A
Format: Online-Aufsatz
Sprache:English
Veröffentlicht: 1986
Zugriff auf das übergeordnete Werk:The New phytologist
Schlagworte:Journal Article Nostoc muscorum Pesticide-toxicity mercury-resistance mutation
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245 1 0 |a BIOLOGICAL EFFECTS OF A MERCURY FUNGICIDE ON A N2 -FIXING BLUE-GREEN ALGA NOSTOC MUSCORUM  |b ISOLATION AND PRELIMINARY CHARACTERIZATION OF A Hg-RESISTANT MUTANT 
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520 |a Mercuric chloride, which is used as a fungicide in tropical paddy-fields, inhibits growth (in N2 , i.e. molecular nitrogen, and 5 mM KNO3 media) and heterocyst formation (in N8 medium) in the blue-green alga Nostoc muscorum at a concentration of 0.3 μg ml-1 and above. These inhibitory effects were reversed on supplementation with 3 mM exogenous glucose. A mercury resistant mutant of this alga has been obtained, which is stable through repeated cell transfers in N2 medium. It is suggested that a Hg-inducible protein/enzyme system is responsible for the intracellular mercury-resistance of this mutant 
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700 1 |a Vishwakarma, M L  |e verfasserin  |4 aut 
700 1 |a Vaishampayan, A  |e verfasserin  |4 aut 
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