Fluctuation in levels of endogenous plant hormones in ovules of normal and mutant cotton during flowering and their relation to fiber development
文献类型: 外文期刊
第一作者: Chen, JG
作者: Chen, JG;Du, XM;Zhao, HY;Zhou, X
作者机构:
关键词: plant hormones;cotton ovule;mutant;fiber development
期刊名称:JOURNAL OF PLANT GROWTH REGULATION ( 影响因子:4.169; 五年影响因子:4.038 )
ISSN: 0721-7595
年卷期: 1996 年 15 卷 4 期
页码:
收录情况: SCI
摘要: The contents of indole-3-acetic acid (IAA), gibberellins (GAs), abscisic acid (ABA), and cytokinins were determined in ovules of normal cotton (Tm-1) and a kind of fiber differentiation mutant (Xin) before and after flowering by enzyme-linked immunosorbent assays, It was found that 24 h before flowering, a peak of IAA content was observed in ovules of Tm-1, whereas in ovules of Xin, a low level of IAA was determined. From -1 day (1 day before flowering) to +3 days (3 days after flowering), CA(1+3) levels in ovules of Xin were 40-70% lower than those of Tm-1; GA(4+7) levels were very low, and there was no visible difference in GA(4+7) content between normal and mutant cotton. The ABA content in ovule of Tm-1 decreased by 70% 3 days after flowering, whereas that of Xin only decreased by 20%. The levels of cytokinins in ovules of Tm-1 decreased after flowering, and those of Xin kept up a steady increase.
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