Rice (Oryza sativa L.) cultivars tolerant to high temperature at flowering:: Anther characteristics

被引：195

作者：

Matsui, T

Omasa, K

机构：

[1] Kyoto Univ, Expt Farm, Takatsuki, Osaka 5690096, Japan

[2] Univ Tokyo, Grad Sch Agr & Life Sci, Tokyo 1138657, Japan

来源：

ANNALS OF BOTANY | 2002年 / 89卷 / 06期

关键词：

anther dehiscence; anther size; high temperature tolerance; lacuna between septum and stomium; Oryza sativa L; rice; septum; tapetum;

D O I：

10.1093/aob/mcf112

中图分类号：

Q94 [植物学];

学科分类号：

071001 ;

摘要：

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.

引用

页码：683 / 687

页数：5

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