scholarly journals Effects of Growth Temperature on Nitrate Concentration and Nitrate Reductase Activity in Komatsuna (Brassica rapa L. var. perviridis)

2014 ◽  
Vol 13 (1) ◽  
pp. 41-46
Author(s):  
Kazuhiro Dan ◽  
Yoichi Yamato ◽  
Shigeo Imada
Keyword(s):  
Nitrate Reductase ◽  
Brassica Rapa ◽  
Growth Temperature ◽  
Nitrate Reductase Activity ◽  
Nitrate Concentration ◽  
Reductase Activity

Nitrogen Uptake of Field-grown Cotton. II. Nitrate Reductase Activity and Petiole Nitrate Concentration as Indicators of Plant Nitrogen Status

1983 ◽  
Vol 19 (1) ◽  
pp. 103-109 ◽  
Author(s):  
D. M. Oosterhuis ◽  
G. C. Bate
Keyword(s):  
Nitrate Reductase ◽  
Seasonal Changes ◽  
Nitrate Reductase Activity ◽  
Nitrate Concentration ◽  
Reductase Activity ◽  
Soil N ◽  
Plant Nitrogen ◽  
Petiole Nitrate Concentration ◽  
Leaf Nitrate ◽  
N Status

SUMMARYThe possibility of using seasonal changes in leaf nitrate reductase activity (NRA) as a reliable and sensitive indicator of plant nitrogen (N) status has been investigated in field-grown cotton. These changes were compared with those in nitrate concentration in petioles and variations in soil-N concentration. We conclude that NRA in the uppermost, fully-expanded sympodial leaves may provide a more convenient, sensitive and reliable indicator of plant-N status than measurements of nitrate concentrations in petioles.

Effect of nitrate concentration and UVR on photosynthesis, respiration, nitrate reductase activity, and phenolic compounds in Ulva rigida (Chlorophyta)

2010 ◽  
Vol 23 (3) ◽  
pp. 363-369 ◽  
Author(s):  
Alejandro Cabello-Pasini ◽  
Víctor Macías-Carranza ◽  
Roberto Abdala ◽  
Nathalie Korbee ◽  
Félix L. Figueroa
Keyword(s):  
Phenolic Compounds ◽  
Nitrate Reductase ◽  
Nitrate Reductase Activity ◽  
Nitrate Concentration ◽  
Reductase Activity ◽  
Ulva Rigida

Nitrate reductase activity of dark-grown and light-exposed etiolated field peas (Pisum arvense)

1973 ◽  
Vol 51 (1) ◽  
pp. 27-35 ◽  
Author(s):  
R. W. Jones ◽  
R. W. Sheard
Keyword(s):  
Nitrate Reductase ◽  
White Light ◽  
Nitrate Reductase Activity ◽  
Nitrate Concentration ◽  
Reductase Activity ◽  
Protein Distribution ◽  
Pisum Arvense ◽  
Field Peas ◽  
Short Period ◽  
Terminal Buds

The nitrate reductase of etiolated field peas (Pisum arvense L. cv. Century) is described. Enzyme activity is maximally extracted into a cysteine-free solution. Absolute enzyme activities, in dark-grown plants and in plants exposed for a short period to 600 μW∙cm−2 of white light, and the extent of induction by light, were high in the terminal buds and declined rapidly in the basal direction along the shoot. Soluble protein distribution followed nitrate reductase activity in opposite direction to the acropetal decrease in nitrate concentration. Nitrate reductase in dark-grown terminal buds showed adaptation to the supply of nutrient nitrate concentration, and 2 h of white light also elicited an enzyme response that depended on nitrate. The effect of light is demonstrated to be largely independent of photosynthetic light utilization since 5 min of white light, followed by 115 min of darkness, led to activity increases that were about 80% of increases after 2 h of white light. Enzymologically, the nitrate reductase of dark-grown terminal buds appeared to be identical with the light-induced enzyme and also with the enzyme of green plant tissues as characterized in the literature.

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