THE RELATIONSHIP BETWEEN A-TYPE AND B-TYPE STARCH GRANULES IN THE DEVELOPING ENDOSPERM OF WHEAT
THE RELATIONSHIP BETWEEN A-TYPE AND B-TYPE STARCH GRANULES IN THE DEVELOPING ENDOSPERM OF WHEAT
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DOI：
10.1016/s0733-5210(85)80001-1
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发表时间：
1985-01-01
影响因子：
3.8
通讯作者：
PARKER, ML
中科院分区：
文献类型：
--
作者：
PARKER, ML
通过电子显微镜检查了一些发育中的四倍体和六倍体小麦的内胚乳中A型和B型淀粉颗粒之间的关系。开花后约 14 天，B 型颗粒在一些 A 型淀粉体的基质中开始形成，通常与周围沟和小管相关。在从 A 型淀粉体表面延伸的狭窄突起内也发现了 B 型颗粒，但不确定它们是在突起中起始还是从基质进入突起中。花后25-35天，A型淀粉体含有一个A型淀粉颗粒和许多B型颗粒，这些颗粒通常通过狭窄的收缩附着在亲本淀粉体上。
The relationship between A- and B-type starch granules in the inner endosperm of some developing tetraploid and hexaploid wheats was examined by electron microscopy. At about 14 days after anthesis, B-type granules were initiated in the stroma of some A-type amyloplasts, often in association with the peripheral groove and tubuli. B-type granules were found also within narrow protrusions extending from the surface of A-type amyloplasts, but it is not certain whether they were initiated in the protrusions or passed into them from the stroma. From 25-35 days after anthesis, the A-type amyloplasts contained one A-type starch granule and numerous B-type granules, which were often attached to the parent amyloplast by a narrow constriction.