Ammonia Regulation of Intermediary Metabolism in Photosynthesizing and Respiring Chlorella pyrenoidosa: Comparative Effects of Methylamine期刊界 All Journals 搜尽天下杂志传播学术成果专业期刊搜索期刊信息化学术搜索

Ammonia Regulation of Intermediary Metabolism in Photosynthesizing and Respiring Chlorella pyrenoidosa: Comparative Effects of Methylamine

Authors:	Kanazawa, Tamotsu Distefano, Mark Bassham, James A.

Affiliation:	¹Sagami Woman's College Buniyo 2-1-1, Sagamihara, Kanagawa 228, Japan ²Laboratory of Chemical Biodynamics, Lawrence Berkeley Laboratory, University of California Berkeley, California 94720, U.S.A.

Abstract:	The natural ¹³C abundance ( ${delta}$ ¹³C value) of the field-grown leguminousplants (soybean, kidney bean, pea, azuki bean, mung bean, peanutand cowpea) was investigated by mass spectrometry with a precisionbetter than %0.2 ${per thousand}$ for ${delta}$ ¹³C. Among organs of premature plants,the leaves had the most negative values, and the nodules generallyhad the least negative values, and other organs, fruits, stemsand roots, showed intermediate values. In the soybeans so farinvestigated, the grains of nodulating plants exhibited higher ${delta}$ ¹³C values than nonnodulating lines. The ${delta}$ ¹³C values of the grainsvaried depending on the species: peanuts showed the most negativevalues. Possible causes underlying these variations are discussed. (Received March 2, 1983; Accepted May 27, 1983)

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