ISSN:
1435-8107
Keywords:
Plant hormones
;
Cotton ovule
;
Mutant
;
Fiber development
Source:
Springer Online Journal Archives 1860-2000
Topics:
Agriculture, Forestry, Horticulture, Fishery, Domestic Science, Nutrition
Notes:
Abstract 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), GA1+3 levels in ovules of Xin were 40–70% lower than those of Tm-1; GA4+7 levels were very low, and there was no visible difference in GA4+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.
Type of Medium:
Electronic Resource
URL:
http://dx.doi.org/10.1007/BF00190581
Permalink