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Superóxido dismutasa y catalasa en bacterias bioluminiscentes marinas

Authors: González-Lama, Z.; Díez-del-Pino, A.;

Superóxido dismutasa y catalasa en bacterias bioluminiscentes marinas

Abstract

Han sido estudiadas la catalasa y la superóxido dismutasa (SOD) de bacterias bioluminiscentes marinas. Hemos encontrado varios isoenzimas de catalasa y un isoenzima de superóxido dismutasa y se ha observado que a menor luminiscencia los niveles de catalasa son mayores. Una variante de Photobacterium phosphoreum var K (cepa mutante que carece de bioluminiscencia) mostró los múximos niveles de catalasa. Hay dos tipos de catalasas en esta estirpe, una de pI 7, 2 que es inhibida por el 3-amino, 1, 2, 4-triazol y otros isoenzimas que son resistentes a la acción de este inhibidor. Todas las cata1asa de estas bacterias bioluminiscentes marinas son hemoproteínas, ya que son inhibidas por la azida y el cianuro. El isoenzima de SOD es una Fe-SOD.

Catalase and superoxide dismutase (SOD) were studied in strains of marine bioluminescent bacteria. We found several isozymes of catalase in these strains and only one isozyme of superoxide dismutase. We observed that catalase levels rose as bioluminiscence emission fell. A dark strain ofPhotobacterium phosphoreum var. K showed the maximun levels of catalase. There are two types of catalases in this strain: an isozyme of pI 7.2 inhibited by 3-amino, 1, 2, 4-triazole and others isozymes resistent to this inhibitor. All isozymes of catalase from these bioluminescent marine bacteria are hemo-proteins, since they were inhibited by cianyde and azide. The single isozyme of SOD is a Fe-SOD.

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Keywords

Superoxide Dismutase, Bacterias bioluminiscentes, Photobacterium, Bioluminescent Bacteria, catalasa, 2414 Microbiología, Medio Marino, Catalase, Superóxido dismutasa, bacterias bioluminiscentes, Vibrio

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selected citations
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This is an alternative to the "Influence" indicator, which also reflects the overall/total impact of an article in the research community at large, based on the underlying citation network (diachronically).
BIP!Citations provided by BIP!
popularity
This indicator reflects the "current" impact/attention (the "hype") of an article in the research community at large, based on the underlying citation network.
BIP!Popularity provided by BIP!
influence
This indicator reflects the overall/total impact of an article in the research community at large, based on the underlying citation network (diachronically).
BIP!Influence provided by BIP!
impulse
This indicator reflects the initial momentum of an article directly after its publication, based on the underlying citation network.
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