Rice (Oryza sativa L.) cultivars tolerant to high temperature at flowering:: Anther characteristics
Rice (Oryza sativa L.) cultivars tolerant to high temperature at flowering:: Anther characteristics
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DOI：
10.1093/aob/mcf112
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发表时间：
2002-06-01
期刊：
影响因子：
4.2
通讯作者：
Omasa, K
中科院分区：
文献类型：
--
作者：
Matsui, T;Omasa, K
研究了高温（37.5/26℃/昼夜）条件下粳稻花药形态特征与育性的关系。育性百分率与分隔花药室和间隔口间空隙的细胞层数呈负相关。细胞层由剩余的隔膜和退化的绒毡层组成，并起到保持相邻的两个室闭合的作用。因此，花药开裂需要细胞层的破裂。我们得出结论，细胞层对室室的紧密封闭延迟了室室的开放，并降低了高温下的育性。(C) 2002年植物学年鉴。
We examined the relationship between morphological characteristics of anthers and fertility in japonica rice cultivars subjected to high temperature (37.5/26 degreesC day/night) at flowering. Percentage fertility was negatively correlated with the number of cell layers that separated the anther locule from the lacuna that formed between the septum and the stomium. The cell layers consisted of the remaining septum and degraded tapetum, and serve to keep the adjacent two locules closed. Anther dehiscence therefore requires the rupture of the cell layers. We conclude that the tight closure of the locules by the cell layers delayed locule opening, and decreased fertility at high temperatures. (C) 2002 Annals of Botany Company.