Ammonia regulation of intermediary metabolism in photosynthesizing and respiring chlorella pyrenoidosa: Comparative effects of methylamine

Tamotsu Kanazawa, Mark Distefano, James A. Bassham

Research output: Contribution to journalArticlepeer-review

13 Scopus citations

Abstract

The natural 13C abundance (δ13C value) of the field-grown leguminous plants (soybean, kidney bean, pea, azuki bean, mung bean, peanut and cowpea) was investigated by mass spectrometry with a precision better than %0.2‰ for δ13C. Among organs of premature plants, the leaves had the most negative values, and the nodules generally had the least negative values, and other organs, fruits, stems and roots, showed intermediate values. In the soybeans so far investigated, the grains of nodulating plants exhibited higher δ13C values than nonnodulating lines. The δ13C values of the grains varied depending on the species: peanuts showed the most negative values. Possible causes underlying these variations are discussed.

Original languageEnglish (US)
Pages (from-to)979-986
Number of pages8
JournalPlant and Cell Physiology
Volume24
Issue number6
StatePublished - Sep 1 1983

Keywords

  • Ammonia
  • Chlorella
  • Methylamine
  • Regulation

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