sym 13-A Gene Conditioning Ineffective Nodulation in Pisum sativum.

@article{Kneen1990sym1G,
  title={sym 13-A Gene Conditioning Ineffective Nodulation in Pisum sativum.},
  author={Barbara E. Kneen and Thomas A. Larue and Ann M Hirsch and Carol Anne Smith and Norman F. Weeden},
  journal={Plant physiology},
  year={1990},
  volume={94 3},
  pages={
          899-905
        }
}
Treatment of Pisum sativum (L.) cv. ;Sparkle' with ethyl methanesulfonic acid (EMS) produced a stable mutant, E135F, which forms small, white, ineffective nodules. These nodules exhibit histological zonation typical of an indeterminant nodule, e.g. meristematic, early symbiotic, late symbiotic, and senescent zones. Compared with the nitrogen fixing nodules of the parent, the zones are smaller and the nodules senesce prematurely. Bacteroids in E135F are less elongated and less differentiated… CONTINUE READING

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