EFFECTS OF NUTRITIONAL STRESS ON THE STORAGE PROTEINS OF SOYBEANS
EFFECTS OF NUTRITIONAL STRESS ON THE STORAGE PROTEINS OF SOYBEANS
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DOI：
10.1104/pp.78.3.582
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发表时间：
1985-01-01
期刊：
影响因子：
7.4
通讯作者：
SYKES, GE
中科院分区：
文献类型：
--
作者：
GAYLER, KR;SYKES, GE
研究了S缺乏对发育中的大豆籽粒蛋白质补体的影响。S缺乏导致甘氨酸水平降低40%，而β -甘氨酸水平升高。这些蛋白质的亚基组成也受到影响。特别是。β增加了3倍。- beta的亚基。- conglytinins在s缺乏的种子中大量积累，这主要是作为。β的bo -异构体。- conglytinins，一种几乎不含蛋氨酸和半胱氨酸的蛋白质，保留了正常7S储存蛋白质的物理特性。环境胁迫对发育中的种子中蛋白质的积累具有高度的选择性。
The effects of S deficiency on the complement of proteins laid down in developing seeds of soybean (G. max L. Merr) were examined. S deficiency caused a 40% decrease in the level of glycinins and a contrasting elevation in the level of .beta.-conglycinins. The subunit composition of these proteins was also affected. There was in particular a 3-fold increase in the .beta.-subunit of .beta.-conglycinins in the S-deficient seeds, and this accumulated largely as the Bo-isomer of .beta.-conglycinins, a protein which while virtually devoid of methionine and cysteine retains the physical properties of a normal 7S storage protein. A high degree of selectivity can be exerted by environmental stress over the accumulation of proteins in developing seeds.