Nitrate Inhibition of Nodulation and Nitrogen Fixation by Supernodulating Nitrate‐Tolerant Symbiosis Mutants of Soybean
Nitrate Inhibition of Nodulation and Nitrogen Fixation by Supernodulating Nitrate‐Tolerant Symbiosis Mutants of Soybean
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大豆耐硝酸盐共生突变体的硝酸盐抑制结瘤和固氮作用
DOI：
10.2135/cropsci1989.0011183x002900060035x
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发表时间：
1989
期刊：
影响因子：
--
通讯作者：
S. Danso
中科院分区：
文献类型：
--
作者：
D. Eskew;J. Kapuya;S. Danso
最近分离出了几种大豆突变体，它们在连续添加NO3-的沙子中生长时，形成了更多的根瘤（超级根瘤），并表现出耐硝酸盐共生（nts）表型。结果清楚地表明，nts突变体仍然对NO3 −敏感，并表明这些突变不是NO3 −反应机制本身的突变。在生长初期，NTS 382的固氮作用大于Bragg，但在生理成熟期仅保持微弱优势
Several soybean mutants that form a greater number of nodules (supernodulation) and display a nitrate tolerant symbiosis (nts) phenotype when grown in sand with continuous additions of NO 3 − have recently been isolated. The results clearly indicate that the nts mutants were still sensitive to NO 3 − and suggest that these are not mutations in the NO 3 − response mechanism per se. Nitrogen fixation by nts 382 was greater than by Bragg early in growth, but only a slight advantage was maintained at physiological maturity