An alternative nitrogenase is not expressed in molybdenum-deficient legume root nodules

Three legume root nodule bacteria systems (Medicago polymorpha L. -Rhizobium meliloti, Ornithopus sativus Brot. -Bradyrhizobium lupini and Trifolium subterraneum L.- Rhizobium leguminosarum by. trifolii) were grown in solution culture under conditions likely to lead to the production of alternative...

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Veröffentlicht in:The New phytologist. - 1979. - 118(1991), 2 vom: 20. Juni, Seite 303-308
1. Verfasser: Dilworth, M J (VerfasserIn)
Weitere Verfasser: Loneragan, J F
Format: Online-Aufsatz
Sprache:English
Veröffentlicht: 1991
Zugriff auf das übergeordnete Werk:The New phytologist
Schlagworte:Journal Article Alternative nitrogenase legume nodules molybdenum deficiency vanadium
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245 1 3 |a An alternative nitrogenase is not expressed in molybdenum-deficient legume root nodules 
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520 |a Three legume root nodule bacteria systems (Medicago polymorpha L. -Rhizobium meliloti, Ornithopus sativus Brot. -Bradyrhizobium lupini and Trifolium subterraneum L.- Rhizobium leguminosarum by. trifolii) were grown in solution culture under conditions likely to lead to the production of alternative nitrogenases (molybdenum-deficient, or molybdenum-deficient but supplemented with vanadium). Addition of 1 μM molybdenum produced significant responses in both nodule and top weights while 2 μM vanadium did not. Ethane, which is produced as well as ethylene when acetylene is reduced by vanadium nitrogenase or nitrogenase-3 from Azotobacter, was not found in significant amounts during assays of acetylene reduction in either molybdenum-deficient or molybdenum-deficient, vanadium-supplemented treatments, suggesting that no non-molybdenum nitrogenase was produced by these root nodule bacteria 
650 4 |a Journal Article 
650 4 |a Alternative nitrogenase 
650 4 |a legume nodules 
650 4 |a molybdenum deficiency 
650 4 |a vanadium 
700 1 |a Loneragan, J F  |e verfasserin  |4 aut 
773 0 8 |i Enthalten in  |t The New phytologist  |d 1979  |g 118(1991), 2 vom: 20. Juni, Seite 303-308  |w (DE-627)NLM09818248X  |x 1469-8137  |7 nnns 
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