干旱区生态环境知识资源中心(Arid): Synergistic Association With Root Endophytic Fungi Improves Morpho-Physiological and Biochemical Responses of Chenopodium quinoa to Salt Stress

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DOI	10.3389/fevo.2021.787318
	Synergistic Association With Root Endophytic Fungi Improves Morpho-Physiological and Biochemical Responses of Chenopodium quinoa to Salt Stress
	Gonzalez-Teuber, Marcia; Contreras, Rodrigo A.; Zuniga, Gustavo E.; Barrera, Diego; Bascunan-Godoy, Luisa
通讯作者	Gonzalez-Teuber, M (corresponding author)，Univ Catolica Santisima Concepcion, Fac Ciencias, Dept Quim Ambiental, Lab Ecol Quim, Concepcion, Chile. ; Bascunan-Godoy, L (corresponding author)，Univ Concepcion, Fac Ciencias Nat & Oceanograf, Dept Bot, Lab Fisiol Vegetal, Concepcion, Chile.
来源期刊	FRONTIERS IN ECOLOGY AND EVOLUTION
ISSN	2296-701X
出版年	2022
卷号	9
英文摘要	Symbiotic associations with microbes can contribute to mitigating abiotic environmental stress in plants. In this study, we investigated individual and interactive effects of two root endophytic fungal species on physiological and biochemical mechanisms of the crop Chenopodium quinoa in response to salinity. Fungal endophytes (FE) Talaromyces minioluteus and Penicillium murcianum, isolated from quinoa plants that occur naturally in the Atacama Desert, were used for endophyte inoculation. A greenhouse experiment was developed using four plant groups: (1) plants inoculated with T. minioluteus (E1+), (2) plants inoculated with P. murcianum (E2+), (3) plants inoculated with both fungal species (E1E2+), and (4) non-inoculated plants (E-). Plants from each group were then assigned to either salt (300 mM) or control (no salt) treatments. Differences in morphological traits, photosynthesis, stomatal conductance, transpiration, superoxide dismutase (SOD), ascorbate peroxidase (APX), peroxidase, (POD), phenylalanine ammonia-lyase (PAL), phenolic content, and lipid peroxidation between plant groups under each treatment were examined. We found that both endophyte species significantly improved morphological and physiological traits, including plant height, number of shoots, photosynthesis, stomatal conductance, and transpiration, in C. quinoa in response to salt, but optimal physiological responses were observed in E1E2+ plants. Under saline conditions, endophyte inoculation improved SOD, APX, and POD activity by over 50%, and phenolic content by approximately 30%, with optimal enzymatic responses again observed in E1E2+ plants. Lipid peroxidation was significantly lower in inoculated plants than in non-inoculated plants. Results demonstrate that both endophyte species enhanced the ability of C. quinoa to cope with salt stress by improving antioxidative enzyme and non-enzyme systems. In general, both FE species interacting in tandem yielded better morphological, physiological, and biochemical responses to salinity in quinoa than inoculation by a single species in isolation. Our study highlights the importance of stress-adapted FE as a biological agent for mitigating abiotic stress in crop plants.
英文关键词	symbiotic fungi salinity plant tolerance synergic effects physiological performance lipid peroxidation antioxidant enzymes phenols
类型	Article
语种	英语
开放获取类型	gold
收录类别	SCI-E
WOS记录号	WOS:000758000500001
WOS关键词	ALLEVIATES SALINITY STRESS ; OXIDATIVE STRESS ; PIRIFORMOSPORA-INDICA ; REACTIVE OXYGEN ; WATER-DEFICIT ; SUPEROXIDE-DISMUTASE ; HYDROGEN-PEROXIDE ; TOLERANCE ; DIVERSITY ; CHLOROPLASTS
WOS类目	Ecology
WOS研究方向	Environmental Sciences & Ecology
资源类型	期刊论文
条目标识符	http://119.78.100.177/qdio/handle/2XILL650/376590
作者单位	[Gonzalez-Teuber, Marcia] Univ Catolica Santisima Concepcion, Fac Ciencias, Dept Quim Ambiental, Lab Ecol Quim, Concepcion, Chile; [Contreras, Rodrigo A.; Zuniga, Gustavo E.] Univ Santiago Chile, Fac Quim & Biol, Dept Biol, Lab Fisiol & Biotecnol Vegetal, Santiago, Chile; [Barrera, Diego; Bascunan-Godoy, Luisa] Univ Concepcion, Fac Ciencias Nat & Oceanograf, Dept Bot, Lab Fisiol Vegetal, Concepcion, Chile
推荐引用方式 GB/T 7714	Gonzalez-Teuber, Marcia,Contreras, Rodrigo A.,Zuniga, Gustavo E.,et al. Synergistic Association With Root Endophytic Fungi Improves Morpho-Physiological and Biochemical Responses of Chenopodium quinoa to Salt Stress[J],2022,9.
APA	Gonzalez-Teuber, Marcia,Contreras, Rodrigo A.,Zuniga, Gustavo E.,Barrera, Diego,&Bascunan-Godoy, Luisa.(2022).Synergistic Association With Root Endophytic Fungi Improves Morpho-Physiological and Biochemical Responses of Chenopodium quinoa to Salt Stress.FRONTIERS IN ECOLOGY AND EVOLUTION,9.
MLA	Gonzalez-Teuber, Marcia,et al."Synergistic Association With Root Endophytic Fungi Improves Morpho-Physiological and Biochemical Responses of Chenopodium quinoa to Salt Stress".FRONTIERS IN ECOLOGY AND EVOLUTION 9(2022).