Botany Department, University College of Wales, Aberystwyth, UK.
Planta. 1971 Jun;99(2):120-32. doi: 10.1007/BF00388244.
The effect of IAA and three synthetic auxins on the upward movement of (32)P-orthophosphate and (14)C-sucrose has been investigated in decapitated stems of Phaseolus vulgaris L., Pisum sativum L., Coleus blumci L. and Helianthus annuus L. IAA greatly enhanced the accumulation of (32)P-orthophosphate in Phaseolus vulgaris and Pisum sativum, whereas in C. blumei and H. annuus it did not. 2,4-D like IAA, caused an increase in (14)C-sucrose and (32)P-orthophosphate accumulation in Phaseolus vulgaris but, unlike IAA, caused no increase in Pisum sativum. The downward transport of (14)C-IAA, (14)C-NAA, (14)C-2,4-D and (14)C-2,4,5-T from the decapitated apex was also studied. Results are discussed in terms of current theories of hormone-directed transport.
已研究了吲哚乙酸（IAA）和三种合成生长素对去顶豆类植物菜豆、豌豆、彩叶草和向日葵茎中（32）P-正磷酸盐和（14）C-蔗糖向上移动的影响。IAA 大大增强了（32）P-正磷酸盐在菜豆和豌豆中的积累，而在彩叶草和向日葵中则没有。类似 IAA 的 2,4-D 引起（14）C-蔗糖和（32）P-正磷酸盐在菜豆中的积累增加，但与 IAA 不同，它没有引起豌豆中的增加。还研究了（14）C-IAA、（14）C-NAA、（14）C-2,4-D 和（14）C-2,4,5-T 从去顶顶端向下的运输。根据目前的激素定向运输理论讨论了结果。
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