Nitrite activation of nitrate reductase in higher plants

D. Kaplan; A. M. Mayer; S. H. Lips

doi:10.1007/BF00386812

Nitrite activation of nitrate reductase in higher plants

D. Kaplan, A. M. Mayer, S. H. Lips

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Abstract

Comparative studies of nitrate-activated nitrate reductase (NR-NO₂) and nitrate-induced nitrate reductase (NR-NO₃) (EC 1.6.6.2) indicate that the enzymes differ in structure, heat stability, and pH dependence, but have the same cofactor requirment. NR-NO₂ developes in barley (Hordeum vulgare L. var. Dvir) seedlings as NR-NO₃ disappears. A transition from the active to the inactive form of nitrate reductase takes place. Nitrite seems to activate the inactive form of the enzyme.

Original language	English
Pages (from-to)	205-209
Number of pages	5
Journal	Planta
Volume	138
Issue number	3
DOIs	https://doi.org/10.1007/BF00386812
State	Published - 1 Jan 1978

Keywords

Hordeum Nitrite
Nitrate reductase

ASJC Scopus subject areas

Genetics
Plant Science

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10.1007/BF00386812

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title = "Nitrite activation of nitrate reductase in higher plants",

abstract = "Comparative studies of nitrate-activated nitrate reductase (NR-NO2) and nitrate-induced nitrate reductase (NR-NO3) (EC 1.6.6.2) indicate that the enzymes differ in structure, heat stability, and pH dependence, but have the same cofactor requirment. NR-NO2 developes in barley (Hordeum vulgare L. var. Dvir) seedlings as NR-NO3 disappears. A transition from the active to the inactive form of nitrate reductase takes place. Nitrite seems to activate the inactive form of the enzyme.",

keywords = "Hordeum Nitrite, Nitrate reductase",

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AU - Mayer, A. M.

AU - Lips, S. H.

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N2 - Comparative studies of nitrate-activated nitrate reductase (NR-NO2) and nitrate-induced nitrate reductase (NR-NO3) (EC 1.6.6.2) indicate that the enzymes differ in structure, heat stability, and pH dependence, but have the same cofactor requirment. NR-NO2 developes in barley (Hordeum vulgare L. var. Dvir) seedlings as NR-NO3 disappears. A transition from the active to the inactive form of nitrate reductase takes place. Nitrite seems to activate the inactive form of the enzyme.

AB - Comparative studies of nitrate-activated nitrate reductase (NR-NO2) and nitrate-induced nitrate reductase (NR-NO3) (EC 1.6.6.2) indicate that the enzymes differ in structure, heat stability, and pH dependence, but have the same cofactor requirment. NR-NO2 developes in barley (Hordeum vulgare L. var. Dvir) seedlings as NR-NO3 disappears. A transition from the active to the inactive form of nitrate reductase takes place. Nitrite seems to activate the inactive form of the enzyme.

KW - Hordeum Nitrite

KW - Nitrate reductase

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IS - 3

ER -

Nitrite activation of nitrate reductase in higher plants

Abstract

Keywords

ASJC Scopus subject areas

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