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首页> 外文期刊>Acta Horticulturae >Interactions between Cytokinin-active Substances and Fruit Growth of Actinidia deliciosa (Green Kiwifruit) and an Actinidia chinensis Selection
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Interactions between Cytokinin-active Substances and Fruit Growth of Actinidia deliciosa (Green Kiwifruit) and an Actinidia chinensis Selection

机译:猕猴桃绿色猕猴桃细胞分裂素活性物质与果实生长的相互作用及中华猕猴桃的选择

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摘要

The limiting hormone for fruit growth in Actinidia deliciosa appeared to be cytokinins. N-(2-cloro-4-pyridyl)-N'-phenylurea (CPPU) dramatically stimulated growth of both A. deliciosa and some A. chinensis selections, but natural cytokinins and other synthetic cytokinins had only low activity. Evidence is presented that CPPU interacts positively with naturally occurring cytokinins in stimulating fruit growth of kiwifruit, suggesting a possible protective role for CPPU. However an effective natural stimulant of an A. chinensis selection (gold fleshed) does not appear to have cytokinin activity even though the fruit responds to CPPU and, in general CPPU did not seem to increase endogenous cytokinins of A. deliciosa as determined by radioimmunoassays. These results are discussed in terms of the interaction and mechanism of action of plant growth regulators in controlling fruit growth.
机译:猕猴桃果实生长的限制激素似乎是细胞分裂素。 N-(2-cloro-4-pyridyl)-N'-phenylurea(CPPU)极大地刺激了美味曲霉和一些中华曲霉的生长,但是天然细胞分裂素和其他合成细胞分裂素的活性却很低。有证据表明CPPU与自然产生的细胞分裂素在刺激猕猴桃果实生长方面具有积极的相互作用,表明CPPU可能具有保护作用。然而,即使果实对CPPU有反应,中华曲霉选择的有效天然刺激物(金肉)似乎也不具有细胞分裂素活性,并且通常,通过放射免疫分析法测定,CPPU似乎没有增加纤溶曲霉的内源性细胞分裂素。就植物生长调节剂在控制果实生长中的相互作用和作用机理进行了讨论。

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