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首页> 外文期刊>Acta Horticulturae >The expression of MdACOi: impact on 'Golden Delicious' apple fruitlet abscission development
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The expression of MdACOi: impact on 'Golden Delicious' apple fruitlet abscission development

机译：mdacoi的表达：对“金色美味”苹果公司脱落发展的影响

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摘要

The expression of the ethylene-related genes MdACOl, MdACS5A and MdACS5B were followed in the fruit cortex (FC) and abscission zone (AZ) tissue of king and lateral fruitlets of the 'Golden Delicious' apple [Malus x domestica Borkh.) at 0, 1, 4 and 7 daysafter treatment (DAT) with 15 mg L1 naphthaleneacetic acid (NAA), 150 mg L1 6-benzyladenine (BA), 500 mg L1 ethephon, and 3days of 96% shading, all applied at a mean 10-mm fruitlet diameter. MdACOl was the most abundant expressed gene and a positive relation was found between the amounts of transcript in FC tissue and actual abscission. Higher MdACOl expression in FC accelerate abscission process of KF and LF. In the FC tissue of KF, ethephon treatment significantly increased the expression of MdACOl 4DAT and at the same time a strong abscission of ethephon-treated KF was determined at 10 DAT. In the case of LF, ethephon and shading treatment significantly increased MdACOl expression 4 DAT and consequently the abscission by these two treatments started 8 DAT while the fruitlets of the control, NAA and BA treatments started to abscise 3 days later. LF were more subjected to abscission compared to KF and started to abscise at least 3-days earlier than KF.
机译：乙烯相关基因Mdacol，MDACS5A和MDACS5B的表达在“金色美味”苹果[Malus x Domestica Borkh Malus x Domestica Borkh的侧面果蝇的果皮和横向生品的果皮（Fc）和脱落区（AZ）组织中。 ，1,4和7天后处理（DAT）15mg L1萘酸（NAA），150mg L1 6-苄基腺嘌呤（BA），500mg L1 Ethephon和3天的96％阴影，全部施加在平均10- mm果实直径。 Mdacol是最丰富的表达基因，并且在FC组织和实际脱落的转录物中发现了阳性关系。在FC加速KF和LF的脱落过程中较高的mdacol表达。在KF的FC组织中，Ethephon治疗显着增加了MDacol 4DAT的表达，同时在10 dAT时测定了Ethephon处理的KF的强烈脱落。在LF的情况下，Ethephon和遮光处理显着增加了Mdacol表达4 DAT，因此这两种治疗的脱落开始8 dat，而对照，NAA和BA治疗的生品开始3天后开始脱落。与KF相比，LF更受脱落，并开始至少比KF早于3天脱落。

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