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Inhibition of respiratory activity may be responsible for the lowering of nitrogenase activity of water-stressed Leucaena leucocephala nodules

Abstract

The effects of soil drying on water relations, nitrogenase activity (measured as acetylene reduction activity), respiration activity and sucrose metabolism of Leucaene leucocephala nodules were investigated under greenhouse condition. The results of the investigation suggest that it may be through the decrease in respiration rate and thereby that in the supply of ATP that drought stress inhibits ARA of nodules.

Key words: Leucanena leucocephala;Water stress nitrogenase activity;Respiration rate;ATP;Sucrose metabolism;

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Citing This Article：

. Inhibition of respiratory activity may be responsible for the lowering of nitrogenase activity of water-stressed Leucaena leucocephala nodules. Acta Physiol Sin 1998; 50 (3): (in Chinese with English abstract).