Effect of hydrogen sulfide on cabbage photosynthesis under black rot stress

被引：4

作者：

Wang, Jie ^{[1
]}

Dou, Jianhua ^{[1
]}

Yue, Zhibin ^{[1
]}

Wang, Jue ^{[1
]}

Chen, Tongyan ^{[1
]}

Li, Jinbao ^{[1
]}

Dai, Haojie ^{[1
]}

Dou, Tingting ^{[1
]}

Yu, Jihua ^{[1
,2
]}

Liu, Zeci ^{[1
]}

机构：

[1] Gansu Agr Univ, Coll Hort, Lanzhou 730070, Peoples R China

[2] Gansu Agr Univ, Gansu Prov Key Lab Arid Land Crop Sci, Lanzhou 730070, Peoples R China

来源：

PLANT PHYSIOLOGY AND BIOCHEMISTRY | 2024年 / 208卷

基金：

美国国家科学基金会;

关键词：

Black rot; Cabbage; Hydrogen sulfide; Photosynthesis; CAMPESTRIS PV. CAMPESTRIS; WHEAT; FLUORESCENCE; RESISTANCE; PROTEINS; MOLECULE; INCREASE; DENSITY; PLANTS;

D O I：

10.1016/j.plaphy.2024.108453

中图分类号：

Q94 [植物学];

学科分类号：

071001 ;

摘要：

Hydrogen sulfide (H2S), as a potential gaseous signaling molecule, is involved in mediating biotic and abiotic stress in plants. Currently, there are no studies investigating the mechanism by which H2S improves photosynthesis under black rot (BR) stress caused by Xanthomonas campestris pv. Campestris (Xcc). In this study, we investigated the effect of exogenous H2S on Xcc induced photosynthetic impairment in cabbage seedlings. BR has an inhibitory effect on the photosynthetic ability of cabbage seedlings. Xcc infection can significantly reduce the chlorophyll content, photosynthetic characteristics, chlorophyll fluorescence, Calvin cycle related enzyme activity and gene expression in cabbage leaves. The use of H2S can alleviate this inhibitory effect, reduce chlorophyll decomposition, improve gas exchange, enhance the activity of Calvin cycle related enzymes, and increase the expression of related genes. Transcriptome analysis showed that all differential genes related to photosynthesis were up regulated under H2S treatment compared to normal inoculation. Therefore, spraying exogenous H2S can improve the photosynthetic capacity of cabbage seedlings, reduce Xcc induced photoinhibition, and improve plant resistance.

引用

页数：11

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