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结合态氮对根瘤菌生长液诱导的苜蓿根毛变形的抑制

游志鹏, 廖玫江, 朱家璧

中科院上海植物生理研究所.上海 200032

摘要

硝态氮和铵态氮均能有效地抑制根瘤菌生长液诱导的宿主根毛变形。而其抑制作用随结合态氮浓度的增加、作用时间的延长而增强。该抑制作用发生在结合态氮浓度和作用时间分别达到1mmol/L和12h时,或当其浓度和作用时间分别为6mmol/L和48h时,根瘤菌生长液引起根毛变形的植株百分率下降到10%。硝态氮与铵态氮抑制根瘤菌生长液诱导根毛变形的作用相类似。

关键词： 根毛变形; 结合态氮抑制作用; 苜蓿根瘤菌

Studies of the inhibition of combined N on the root hair deformation induced by the supernatant of the culture solution of Rhizobium meliloti

You Zhipeng, Liao Meijiang, Zhu Jiabi

Shanghai Institute of Plant Physiology,Chinese Academy of Sciences.Shanghai 200032

Abstract

The inhibiting effect of combined N on root hair deformation of alfalfa induced by the supernatant of the culture solution of Rhizobium meliloti was studied.

Key words: Root hair deformation;Inhibition of combined N;Rhizobium meliloti

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引用本文：

游志鹏, 廖玫江, 朱家璧. 结合态氮对根瘤菌生长液诱导的苜蓿根毛变形的抑制[J]. 生理学报 1998; 50 (3): .

You Zhipeng, Liao Meijiang, Zhu Jiabi. Studies of the inhibition of combined N on the root hair deformation induced by the supernatant of the culture solution of Rhizobium meliloti. Acta Physiol Sin 1998; 50 (3): (in Chinese with English abstract).