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豌豆胚根细胞在萌发过程中的超微结构变化

Ultrastructural changes in cells of pea embryo radicles during germination.

作者信息

Yoo B Y

出版信息

J Cell Biol. 1970 Apr;45(1):158-71. doi: 10.1083/jcb.45.1.158.

Abstract

Radicles (1 mm long) of pea embryo axes, excised from dormant seeds and from seeds soaked for 80 min, 8, 12, and 48 hr, were fixed in glutaraldehyde and postfixed in OsO(4). The nucleus was only slightly changed by 48 hr soaking, but cytoplasmic organelles underwent developmental changes. There was proliferation of endoplasmic reticulum, the appearance of dictyosomes, and an inward migration of lipid bodies. Most of these changes were observed within 8 hr after soaking started. Plastids, mitochondria, protein bodies, and protein crystalline bodies were also identified and their developmental changes were followed.

摘要

从休眠种子以及浸泡80分钟、8小时、12小时和48小时的种子中切取长度为1毫米的豌豆胚轴胚根,用戊二醛固定,再用四氧化锇后固定。浸泡48小时后细胞核仅有轻微变化,但细胞质细胞器发生了发育变化。内质网增生,出现了高尔基体,脂质体向内迁移。这些变化大多在浸泡开始后的8小时内观察到。还鉴定了质体、线粒体、蛋白体和蛋白晶体,并追踪了它们的发育变化。

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