Perception of strigolactones and the coordinated phytohormonal regulation on rice (Oryza sativa) tillering is affected by endogenous ascorbic acid.

IF 2.6 4区生物学 Q2 PLANT SCIENCES

Functional Plant Biology Pub Date : 2024-02-01 DOI:10.1071/FP23148

Le Yu, Jiankai Zhou, Junlong Lin, Mengwei Chen, Fang Liu, Xinlin Zheng, Liping Zhou, Ruozhong Wang, Langtao Xiao, Yonghai Liu

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Abstract

Phytohormones play a key role in regulating tiller number. Ascorbic acid (Asc)-phytohormone interaction plays a pivotal role in the regulation of senescence. We analysed the relationship between Asc and the enzyme concentrations and gene transcript abundances related to the signal perception of strigolactones (SLs), the contents of four phytohormones (abscisic acid, ABA; jasmonic acid, JA; indole acetic acid, IAA; cytokinin, CTK), the enzyme concentrations and gene transcript abundances related to the synthesis or transportation of these four phytohormones. Our results showed that Asc deficiency leads to the upregulation of enzyme concentrations, gene transcript abundances related to the SL signal perception, ABA synthesis and IAA transport. The altered level of Asc also leads to a change in the contents of ABA, JA, IAA and CTK. These findings support the conclusion that Asc or Asc/DHA play an important role in the signal perception and transduction of SLs, and Asc may affect the coordinated regulation of SL, IAA and CTK on rice (Oryza sativa ) tillering.

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水稻（Oryza sativa）分蘖时对绞股蓝内酯的感知和植物激素的协调调节受内源抗坏血酸的影响。

植物激素在调节分蘖数量方面起着关键作用。抗坏血酸（Asc）与植物激素的相互作用在衰老调控中起着关键作用。我们分析了抗坏血酸（Asc）与糙叶内酯（SLs）信号感知相关的酶浓度和基因转录本丰度、四种植物激素（脱落酸，ABA；茉莉酸，JA；吲哚乙酸，IAA；细胞分裂素，CTK）含量、合成或运输这四种植物激素相关的酶浓度和基因转录本丰度之间的关系。结果表明，Asc缺乏会导致与SL信号感知、ABA合成和IAA转运有关的酶浓度、基因转录本丰度上调。Asc水平的改变也会导致ABA、JA、IAA和CTK含量的变化。这些研究结果支持了以下结论：Asc或Asc/DHA在SL信号感知和传导中起着重要作用，Asc可能影响SL、IAA和CTK对水稻（Oryza sativa）分蘖的协调调控。

本文章由计算机程序翻译，如有差异，请以英文原文为准。

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来源期刊

Functional Plant Biology 生物-植物科学

CiteScore

5.50

自引率

3.30%

发文量

156

审稿时长

1 months

期刊介绍： Functional Plant Biology (formerly known as Australian Journal of Plant Physiology) publishes papers of a broad interest that advance our knowledge on mechanisms by which plants operate and interact with environment. Of specific interest are mechanisms and signal transduction pathways by which plants adapt to extreme environmental conditions such as high and low temperatures, drought, flooding, salinity, pathogens, and other major abiotic and biotic stress factors. FPB also encourages papers on emerging concepts and new tools in plant biology, and studies on the following functional areas encompassing work from the molecular through whole plant to community scale. FPB does not publish merely phenomenological observations or findings of merely applied significance. Functional Plant Biology is published with the endorsement of the Commonwealth Scientific and Industrial Research Organisation (CSIRO) and the Australian Academy of Science. Functional Plant Biology is published in affiliation with the Federation of European Societies of Plant Biology and in Australia, is associated with the Australian Society of Plant Scientists and the New Zealand Society of Plant Biologists.