Action of actinomycin D on auxin-induced growth of Avena coeleoptile section
نویسندگان
چکیده
منابع مشابه
Inhibition of RNA synthesis and auxin-induced cell wall extensibility and growth by Actinomycin D.
A linear stress strain analyzer was used to determine the effects of inhibitors of RNA and protein synthesis on auxin-induced increases in cell wall extensibility. With etiolated soybean hypocotyl, maize mesocotyl and Avena coleoptile sections and light-grown pea internode sections, inhibition of RNA synthesis resulted in inhibition of auxin-induced extensibility changes and cell expansion. The...
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15 صفحه اولAuxin-induced cell wall loosening in the presence of actinomycin D.
Actinoiiiycini D, an inllibitor of RNA synthesis (10, 12), will prevent auxin-induced cell elongation (4. 8. 12, 16). It has been assumed that it acts by inhibiting the action of auxin (8, 12, 16). If this is correct, it would indicate that RNA svnthesis is required for auxin action. Auxin-induced elongation is a complex process which requires a number of factors (5). In Avena coleoptile tissue...
متن کاملAuxin-induced growth of Avena coleoptiles involves two mechanisms with different pH optima.
Although rapid auxin-induced growth of coleoptile sections can persist for at least 18 hours, acid-induced growth lasts for a much shorter period of time. Three theories have been proposed to explain this difference in persistence. To distinguish between these theories, the pH dependence for auxin-induced growth of oat (Avena sativa L.) coleoptiles has been determined early and late in the el...
متن کاملGrowth, Auxin, and Tropisms in Decapitated Avena Coleoptiles.
With all the work on auxin appearing in the last years it is remarkable that not more investigations are concerned with the actual role of the auxins inside the plant. Barring some early opposition, the original statement "Without auxin no growth" (12) has stood unchallenged for many years. Probably this was so because all test methods were based on the principle of proportionality between auxi...
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ژورنال
عنوان ژورنال: Acta Societatis Botanicorum Poloniae
سال: 2015
ISSN: 2083-9480
DOI: 10.5586/asbp.1971.046