水杨酸诱导的气孔关闭在不同系维管植物中是不同的。

IF 5.6 2区 生物学 Q1 PLANT SCIENCES
Xiayi Zhang, Guoliang Chen, Xudong Liu, Minhui Bi, Shihua Qi, Yuanyuan Zeng, Yanru Li, Yaxian Du, Xueqian Tian, Ruiyun He, Xiangwen Fang
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引用次数: 0

摘要

在被子植物中,水杨酸(Salicylic acid, SA)触发气孔关闭以防止病原体入侵已被广泛认识。然而,sa诱导的气孔关闭在不同谱系的维管植物中是否存在差异尚不清楚。本研究评估了13种被子植物、6种裸子植物、8种蕨类植物和1种石松植物等28种植物的气孔对外源SA的响应,并对6种代表性植物的气孔关闭信号通路进行了研究。在种子植物中观察到sa诱导的气孔关闭,而在蕨类植物和石松植物中没有。此外,SA诱导6种维管植物的保护细胞中ROS升高,但在种子植物中检测到NO积累和K+流出,而在2种蕨类植物和1种石松植物中没有检测到。SA的应用导致种子植物的保护细胞出现大液泡区室的解体,而蕨类植物和石松类植物的保护细胞没有发生这种变化。本研究中观察到的种子植物、蕨类植物和石松植物气孔对SA响应的差异,主要是由于蕨类植物和石松植物中SA信号通路的部分缺失。
本文章由计算机程序翻译,如有差异,请以英文原文为准。
Salicylic acid-induced stomatal closure differs in vascular plants of various lineages.

Salicylic acid (SA)-triggering stomatal closure to prevent pathogen invasion has been widely recognized in angiosperms. However, whether SA-induced stomal closure differs across vascular plants of various lineages remains unclear. In this study, the stomatal responses of 28 species, including 13 angiosperms, 6 gymnosperms, 8 ferns, and 1 lycophyte, to exogenous SA were evaluated, and the stomatal closure signaling pathways of 6 representative species were subsequently examined. SA-induced stomatal closure was observed in seed plants but not in the ferns or lycophyte. Additionally, SA induced an increase in ROS in the guard cells of these 6 different vascular plants, but NO accumulation in and K+ efflux from guard cells were detected in seed plants but not in the 2 ferns or 1 lycophyte investigated. The application of SA induced large vacuolar compartments in the guard cells of the seed plants to disaggregate, whereas no such changes were observed in the guard cells of the ferns or lycophyte. The differences in the responses of the seed plant, fern, and lycophyte stomata to SA observed in this study were due mainly to the partial absence of the SA signaling pathway in the ferns and lycophyte.

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来源期刊
Journal of Experimental Botany
Journal of Experimental Botany 生物-植物科学
CiteScore
12.30
自引率
4.30%
发文量
450
审稿时长
1.9 months
期刊介绍: The Journal of Experimental Botany publishes high-quality primary research and review papers in the plant sciences. These papers cover a range of disciplines from molecular and cellular physiology and biochemistry through whole plant physiology to community physiology. Full-length primary papers should contribute to our understanding of how plants develop and function, and should provide new insights into biological processes. The journal will not publish purely descriptive papers or papers that report a well-known process in a species in which the process has not been identified previously. Articles should be concise and generally limited to 10 printed pages.
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