Promotion of Arabidopsis immune responses by a rhizosphere fungus via supply of pipecolic acid to plants and selective augment of phytoalexins

doi:10.1007/s11427-022-2238-8

	Promotion of Arabidopsis immune responses by a rhizosphere fungus via supply of pipecolic acid to plants and selective augment of phytoalexins
	Luo, Feifei 1; Tang, Guirong 1; Hong, Song 1,2; Gong, Tianyu 3; Xin, Xiu-Fang 3; Wang, Chengshu1,2,4
	2022-11-01
发表期刊	SCIENCE CHINA-LIFE SCIENCES (IF:8.0[JCR-2023],7.3[5-Year])
ISSN	1674-7305
EISSN	1869-1889
发表状态	已发表
DOI	10.1007/s11427-022-2238-8
摘要	The ascomycete insect pathogenic fungi such as Metarhizium species have been demonstrated with the abilities to form the rhizosphere or endophytic relationships with different plants for nutrient exchanges. In this study, after the evident infeasibility of bacterial disease development in the boxed sterile soils, we established a hydroponic system for the gnotobiotic growth of Arabidopsis thaliana with the wild-type and transgenic strain of Metarhizium robertsii. The transgenic fungus could produce a high amount of pipecolic acid (PIP), a pivotal plant-immune-stimulating metabolite. Fungal inoculation experiments showed that M. robertsii could form a non-selective rhizosphere relationship with Arabidopsis. Similar to the PIP uptake by plants after exogenous application, PIP level increased in Col-0 and could be detected in the PIP-non-producing Arabidopsis mutant (ald1) after fungal inoculations, indicating that plants can absorb the PIP produced by fungi. The transgenic fungal strain had a better efficacy than the wild type to defend plants against the bacterial pathogen and aphid attacks. Contrary to ald1, fmo1 plants could not be boosted to resist bacterial infection after treatments. After fungal inoculations, the phytoalexins camalexin and aliphatic glucosinolate were selectively increased in Arabidopsis via both PIP-dependent and -independent ways. This study unveils the potential mechanism of the fungus-mediated beneficial promotion of plant immunity against biological stresses. The data also highlight the added values of M. robertsii to plants beyond the direct suppression of insect pest populations.
关键词	Metarhizium robertsii rhizosphere fungus pipecolic acid camalexin aliphatic glucosinolate plant defenses
URL	查看原文
收录类别	SCI
语种	英语
资助项目	[XDPB16] ; [QYZDJ-SSW-SMC028] ; [32021001] ; [31530001]
WOS研究方向	Life Sciences & Biomedicine - Other Topics
WOS类目	Biology
WOS记录号	WOS:000911771100001
出版者	SCIENCE PRESS
引用统计	正在获取...
文献类型	期刊论文
条目标识符	https://kms.shanghaitech.edu.cn/handle/2MSLDSTB/272817
专题	生命科学与技术学院_特聘教授组_王成树组
通讯作者	Wang, Chengshu
作者单位	1.Chinese Acad Sci, Shanghai Inst Plant Physiol & Ecol, CAS Ctr Excellence Mol Plant Sci, Key Lab Insect Dev & Evolutionary Biol, Shanghai 200032, Peoples R China 2.Univ Chinese Acad Sci, CAS Ctr Excellence Biot Interact, Beijing 100049, Peoples R China 3.Chinese Acad Sci, Shanghai Inst Plant Physiol & Ecol, CAS Ctr Excellence Mol Plant Sci, Natl Key Lab Plant Mol Genet, Shanghai 200032, Peoples R China 4.ShanghaiTech Univ, Sch Life Sci & Technol, Shanghai 201210, Peoples R China
通讯作者单位	生命科学与技术学院
推荐引用方式 GB/T 7714	Luo, Feifei,Tang, Guirong,Hong, Song,et al. Promotion of Arabidopsis immune responses by a rhizosphere fungus via supply of pipecolic acid to plants and selective augment of phytoalexins[J]. SCIENCE CHINA-LIFE SCIENCES,2022.
APA	Luo, Feifei,Tang, Guirong,Hong, Song,Gong, Tianyu,Xin, Xiu-Fang,&Wang, Chengshu.(2022).Promotion of Arabidopsis immune responses by a rhizosphere fungus via supply of pipecolic acid to plants and selective augment of phytoalexins.SCIENCE CHINA-LIFE SCIENCES.
MLA	Luo, Feifei,et al."Promotion of Arabidopsis immune responses by a rhizosphere fungus via supply of pipecolic acid to plants and selective augment of phytoalexins".SCIENCE CHINA-LIFE SCIENCES (2022).