Ching T M, Rynd L
Crop Science Department, Oregon State University, Corvallis, Oregon 97331.
Plant Physiol. 1978 Dec;62(6):866-70. doi: 10.1104/pp.62.6.866.
Developmental patterns of embryos from high and low protein wheat (Triticum aestivum) grain produced under varied fertilizer conditions were compared. High protein grain produced seedlings 25% heavier with 25% more total RNA, 30% more DNA, 40% more amino acids, 60% more ribosomes, and 80% more soluble protein content than that of low protein seed. Consistently higher glutamine synthetase and alpha-amylase and lower acid phosphatase activities were observed in high protein seeds, though the isozyme pattern of alpha-amylase was not different in the two kinds of seeds. The high total ribosomes and particularly, polysome content observed in high protein seeds may be responsible for the rapid growth and high yield of these seeds.
比较了在不同施肥条件下生产的高蛋白和低蛋白小麦（普通小麦）籽粒胚胎的发育模式。高蛋白籽粒产生的幼苗比低蛋白种子重25%，总RNA多25%，DNA多30%，氨基酸多40%，核糖体多60%，可溶性蛋白含量多80%。在高蛋白种子中，谷氨酰胺合成酶和α-淀粉酶的活性始终较高，酸性磷酸酶的活性较低，尽管两种种子中α-淀粉酶的同工酶模式没有差异。高蛋白种子中观察到的高核糖体总数，尤其是多核糖体含量，可能是这些种子快速生长和高产的原因。
