Soyabean Stem In Vivo Nitrate Reductase Activity |
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Authors: | HUNTER WILLIAM J |
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Institution: | USDA-ARS P.O. Box E, Fort Collins CO 80522, USA |
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Abstract: | Stem from three- and four-week-old Soyabean Glycine max (L.)Merr. cv. Tracy] plants reduced from 0.3 to 0.7 µmol nitratehl gl f. wt. Leaf activity was 4.77.6 µmolnitrate hl gl f. wt. Outer stem was two to fourtimes more active at reducing nitrate than was inner stem. Plantnitrate nutrition had a strong effect upon the ratio of activitypresent in stem and leaf. More nitrate increased the proportionpresent in leaves. Glycine max L., soyabean, nitrate assimilation, nitrogen metabolism, Rhizobium japonicum |
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