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硫化对白菜光合作用在黑色腐烂压力下硫化的影响

Jie Wang¹, Jianhua Dou¹, Zhibin Yue¹

¹College of Horticulture, Gansu Agricultural University, Lanzhou, 730070, China.

Plant physiology and biochemistry : PPB

|February 28, 2024

概括

硫化 (H₂S) 的应用减轻了黑色腐烂 (BR) 疾病对白菜光合作用的影响. 外源的H2S通过改善叶绿素含量和卡尔文循环活性在Xanthomonas campestris pv.下提高植物的耐药性. 坎佩斯特里斯 (Xcc) 压力.

科学领域:

植物生理学植物生理学
植物病理学植物病理学
生物化学生物化学

背景情况:

硫化 (H2S) 作为植物应激反应中的信号分子.
黑色腐烂 (BR),是由Xanthomonas campestris pv.引起的坎佩斯特里斯 (Xcc),严重损害了植物的光合作用.
H2S对BR诱导的光合作用损伤的保护机制尚不清楚.

研究的目的:

调查外源H2S在缓解Xcc感染下的白菜苗中的光合作用障碍中的作用.
阐明H2S介导的抗黑色腐烂应激保护的分子机制.

主要方法:

卷心菜苗被外源性H₂S处理,随后感染了Xcc.
测量包括叶绿素含量,气体交换,叶绿素光和卡尔文循环酶活性.
进行了转录组分析,以确定与光合作用相关的差异表达基因.

主要成果:

Xcc感染显著降低了叶绿素含量,光合作用效率和卡尔文周期活性.
H2S治疗抵消了这些负面影响,改善了叶绿素稳定性和气体交换.
H2S增强了卡尔文循环酶的活性,并上调了光合作用相关的基因表达.

结论:

外源的H2S有效地减轻了白菜中Xcc诱导的光合作用损伤.
H₂S通过增强光合作用能力和叶绿素光,提高植物对黑色腐烂的抵抗力.
这项研究强调了H2S作为管理影响光合作用的植物疾病的有前途的药物.

关键词:

黑色腐烂是一种腐烂.卷心菜卷心菜的意思硫化是一种硫化.光合作用光合作用

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