iaa调控的acc氧化酶基因pnaco3参与无花性咽炎抑制

IF 0.5 4区生物学 Q4 PLANT SCIENCES

Acta Biologica Cracoviensia Series Botanica Pub Date : 2014-09-11 DOI:10.2478/ABCSB-2014-0013

E. Wilmowicz, K. Frankowski, A. Kućko, J. Kęsy, J. Kopcewicz

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引用次数: 9

摘要

本研究检测了光照和生长素对PnACO3转录水平的影响，PnACO3是一种参与乙烯产生的基因，与乙烯对短日照植物Pharbitis nil (=Ipomoea nil)诱导花的抑制作用有关。外源生长素可提高PnACO3 mRNA的表达水平，其作用取决于实验条件。光照对PnACO3 mRNA水平无影响。在诱导夜开始时，在幼苗子叶上施用生长素，在接下来的几个小时内，PnACO3的转录活性提高了三倍，这支持了我们之前的观点，即生长素对无烟花开花的抑制作用是通过刺激乙烯的产生来实现的。

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INVOLVEMENT OF THE IAA-REGULATED ACC OXIDASE GENE PNACO3 IN PHARBITIS NIL FLOWER INHIBITION

The study examined the influence of light and auxin on the transcription level of PnACO3, a gene involved in ethylene production, in relation to the inhibitory effect of ethylene on flower induction in the short-day plant Pharbitis nil (=Ipomoea nil). Exogenous auxin was shown to increase the level of PnACO3 mRNA, with the effect depending on the experimental conditions. Light did not affect the level of PnACO3 mRNA. Applying auxin to seedling cotyledons at the beginning of inductive night boosted PnACO3 transcriptional activity even threefold during the next few hours, supporting our previous suggestion that the inhibitory effect of auxin on P. nil flowering results from its stimulatory effect on ethylene production.

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来源期刊

Acta Biologica Cracoviensia Series Botanica 生物-植物科学

CiteScore

3.00

自引率

0.00%

发文量

审稿时长

>12 weeks

期刊介绍： ACTA BIOLOGICA CRACOVIENSIA Series Botanica is an English-language journal founded in 1958, devoted to plant anatomy and morphology, cytology, genetics, embryology, tissue culture, physiology, biochemistry, biosystematics, molecular phylogenetics and phylogeography, as well as phytochemistry. It is published twice a year.