Metabolism of hydroxylamine by spinach leaf discs and its relationship to nitrate reduction

Planta ◽  
1981 ◽  
Vol 151 (2) ◽  
pp. 151-156 ◽  
Author(s):  
D. P. Hucklesby ◽  
M. J. Dowling ◽  
E. J. Hewitt
Keyword(s):  
Nitrate Reduction ◽  
Leaf Discs ◽  
Spinach Leaf

The role of malate in nitrate reduction in spinach leaves

1980 ◽  
Vol 58 (5) ◽  
pp. 517-521 ◽  
Author(s):  
K. C. Woo ◽  
D. T. Canvin
Keyword(s):  
Nitrate Reduction ◽  
Nitrite Accumulation ◽  
Antimycin A ◽  
Anaerobic Conditions ◽  
Aerobic Conditions ◽  
Leaf Discs ◽  
Spinach Leaf ◽  
Spinach Leaves

In spinach leaf discs the accumulation of nitrite from nitrate reduction under anaerobic conditions in the light in the presence of 3-(3,4-dichlorophenyl)-1,1-dimethylurea (DCMU) was inhibited by air. The inhibition of nitrate reduction by air was reversed by antimycin A but not by rotenone or amytal. The nitrate-reducing system of DCMU-inhibited leaf discs in the light appeared similar to noninhibited leaf discs in the dark. In aerobic conditions, the addition of malate stimulated nitrite accumulation. This stimulation was unaffected by malonate. Under anaerobic conditions, malate reversed the inhibition of nitrate reduction caused by either iodoacetate or arsenite to rates similar to those observed in the dark and in the light with DCMU. Malate can apparently provide a direct source of cytosolic NADH for nitrate reduction.

scholarly journals Measurement of CO2 and H2O Vapor Exchange in Spinach Leaf Discs

1983 ◽  
Vol 71 (1) ◽  
pp. 102-107 ◽  
Author(s):  
Gary C. Harris ◽  
John K. Cheesbrough ◽  
David A. Walker
Keyword(s):  
Leaf Discs ◽  
Spinach Leaf

Chloroplast and Nuclear DNA Content of Cultured Spinach Leaf Discs

1982 ◽  
Vol 33 (4) ◽  
pp. 831-837 ◽  
Author(s):  
M. J. TYMMS ◽  
N. S. SCOTT ◽  
J. V. POSSINGHAM
Keyword(s):  
Dna Content ◽  
Nuclear Dna ◽  
Nuclear Dna Content ◽  
Leaf Discs ◽  
Spinach Leaf
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