Studies on Tissue of Endosperm and Developmental Process in Opaque Kernel
Studies on Tissue of Endosperm and Developmental Process in Opaque Kernel
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不透明籽粒胚乳组织及发育过程的研究
DOI：
10.1626/jcs.37.143
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发表时间：
1968
期刊：
影响因子：
--
通讯作者：
S. Yanatori
中科院分区：
文献类型：
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作者：
M. Kido;S. Yanatori
在本研究中，我们观察了不透明的籽粒，特别是绿色不透明的籽粒。结果表明：1）不透明籽粒按其形状可分为绿色不透明籽粒（6型、7-1型、7-2型）、白色不透明籽粒、半透明小绿色籽粒和畸形籽粒。绿色不透明籽粒的组织和外观如图1至图12所示。类型6和类型7显示绿色不透明的籽粒，在胚乳中具有未成熟部分（无淀粉组织），如图4、6、8、10、12所示。2)籽粒发育过程分为6种类型，见表1。根据表1，不透明籽粒的早期生长受到上级籽粒竞争的抑制。花后17天的后熟期，不透明籽粒生长较快。3)从弱势小穗的千粒重增长曲线中，我们观察到弱势小穗和上级小穗之间的籽粒生长竞争，如图9所示。4)不透明籽粒的蛋白质含量总是比成熟籽粒丰富。5)如果能在籽粒成熟后期促进不透明籽粒的生长，其中一部分有可能在收获期长成成熟籽粒，那么我们认为上述结果是有可能的。
In this studies we observed on opaque kernel, especially green opaque kernels. The results are summarized as follows: 1) Opaque kernels are classiffied in several types according to its shapesas green opaque kernel (type 6, type 7-1, type 7-2, ), white opaque kernel, small translucent green kernel, and monstrous kernel. Tissue and outlook of green opaque kernel are shown in Figure 1 to Figure 12. Type 6 and type 7 showing green opaque kernel, have immature parts (starch-less tissue) in endosperm as in Figure 4, 6, 8, 10, 12. 2) Developmental process of kernels are classified into 6 types showing in Table 1. According to Table 1, early growth of opaque kernels are suppressed by the competition of superior kernels. And in the late ripening stage at 17 days after flowering, opaque kernels grow comparatively rapid. 3) From the incressing curve of 1000 kernels weight of inferior spikelet, we observed the competition of growth of kernel among inferior spikelet and superior spikelet as in Figure 9. 4) Protein content of opaque kernels are always richer than ripened kernels. 5) If we could promote growth of opaque kernel in late stage of ripening, some of these might be grown to ripennd kernel in harvesting time, then we consider that above results show its possibility.