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Differential effects of ammonium and tungsten on nitrate and nitrite uptake and reduction by sunflower plants

✍ Scribed by Purificacion de la Haba; Eloisa Agüera; JoséM. Maldonado

Book ID
119136442
Publisher
Elsevier Science
Year
1990
Tongue
English
Weight
444 KB
Volume
70
Category
Article
ISSN
0168-9452

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Nitrate and nitrite uptake and reduction
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Nitrogen-starved sunflower plants (Helianthus annuus L. cv. Peredovic) cannot absorb NO 3 (-) or NO 2 (-) upon initial exposure to these anions. Ability of the plants to take up NO 3 (-) and NO 2 (-) at high rates from the beginning was induced by a pretreatment with NO 3 (-) . Nitrite also acted as