Alginate Oligosaccharide (AOS) induced resistance to Pst DC3000 via salicylic acid-mediated signaling pathway in Arabidopsis thaliana

被引：59

作者：

Zhang, Chunguang ^{[1
,2
]}

Howlader, Prianka ^{[1
,3
]}

Liu, Tongmei ^{[1
,4
]}

Sun, Xue ^{[1
]}

Jia, Xiaochen ^{[1
]}

Zhao, Xiaoming ^{[1
]}

Shen, Peili ^{[5
]}

Qin, Yimin ^{[5
]}

Wang, Wenxia ^{[1
]}

Yin, Heng ^{[1
]}

机构：

[1] Chinese Acad Sci, Dalian Inst Chem Phys, Liaoning Prov Key Lab Carbohydrates, Dalian 116023, Peoples R China

[2] Dalian Polytech Univ, Sch Biol Engn, Dalian 116034, Peoples R China

[3] Univ Chinese Acad Sci, Beijing 100049, Peoples R China

[4] Dalian Ocean Univ, Coll Food Sci & Engn, Dalian 116023, Peoples R China

[5] Qingdao Brightmoon Seaweed Grp Co Ltd, Minist Agr Key Lab Seaweed Fertilizers, Qingdao, Shandong, Peoples R China

来源：

CARBOHYDRATE POLYMERS | 2019年 / 225卷

基金：

国家重点研发计划; 中国国家自然科学基金;

关键词：

Alginate oligosaccharide; Arabidopsis; Pst DC3000; Salicylic acid; GENE-EXPRESSION; STRESS; DEFENSE; TOLERANCE; IMMUNITY; CALCIUM; METABOLISM; PECTINS; TOBACCO; TOMATO;

D O I：

10.1016/j.carbpol.2019.115221

中图分类号：

O69 [应用化学];

学科分类号：

081704 ;

摘要：

Alginate Oligosaccharide (AOS) is a natural biological carbohydrate extracted from seaweed. In our study, Arabidopsis thaliana was used to evaluate the AOS-induced resistance to Pseudomonas syringae pv. tomato DC3000 (Pst DC3000). Resistance was vitally enhanced at 25 mg/L in wild type (WT), showing the decreased disease index and bacteria colonies, burst of ROS and NO, high transcription expression of resistance genes PR1 and increased content of salicylic acid (SA). In SA deficient mutant (sid2), AOS-induced disease resistance dropped obviously compared to WT. The disease index was significantly higher than WT and the expression of recA and avrPtoB are two and four times lower than WT, implying that AOS induces disease resistance injecting Pst DC3000 after three days treatment by arousing the SA pathway. Our results provide a reference for the profound research and application of AOS in agriculture.

引用

页数：7

共 56 条

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