Gibberellic acid-induced cell elongation in cotton suspension cultures
Gibberellic acid (GA3) causes cell elongation in cotton suspension cultures derived from cotton ovule callus tissue of both auxin-dependent and-independent lines. Cell elongation was more pronounced in auxin-dependent cultures. Cells were cultured for a period of 14 days but differences in cell lengths could be detected after 6 days in culture. Cell elongation took place in cultures in which GA3 was present throughout the culture period or only for the first 3 days. Auxins and cytokinin alone or in the presence of GA3 did not promote cotton cell elongation above the value for the treatment with GA3 alone.
KeywordsSuspension Culture Gibberellin Cell Elongation Cell Length Cotton Ovule
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