Literature DB >> 12102523

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

Tsutomu Matsui1, Kenji Omasa.   

Abstract

We examined the relationship between morphological characteristics of anthers and fertility in japonica rice cultivars subjected to high temperature (37.5(26 degrees C 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.

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Mesh：

Year:  2002        PMID： 12102523      PMCID： PMC4233832          DOI： 10.1093/aob/mcf112

Source DB:  PubMed          Journal:  Ann Bot        ISSN： 0305-7364            Impact factor:   4.357


  55 in total

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