干旱区生态环境知识资源中心(Arid): Benefits of a root fungal endophyte on physiological processes and growth of the vulnerable legume tree Prosopis chilensis (Fabaceae)

Arid

DOI	10.1093/jpe/rty019
	Benefits of a root fungal endophyte on physiological processes and growth of the vulnerable legume tree Prosopis chilensis (Fabaceae)
	Gonzalez-Teuber, Marcia 1,2; Urzua, Alejandro 3; Morales, Andrea 4; Ibanez, Cristian 4; Bascunan-Godoy, Luisa 5
通讯作者	Gonzalez-Teuber, Marcia
来源期刊	JOURNAL OF PLANT ECOLOGY
ISSN	1752-9921
EISSN	1752-993X
出版年	2019
卷号	12 期号:2 页码:264-271
英文摘要	Aims Desertification is a major concern in arid and semi-arid regions globally. Understanding interactions between vulnerable plant species and associated microbial symbionts may have important applications for conservation and restoration strategies in affected areas. Methods In this study, we evaluated the root-associated fungal endophyte community in Prosopis chilensis, a vulnerable and threatened arid-adapted tree of northern Chile. Host benefits in terms of physiological performance and plant growth were also assessed. Endophytic fungi were isolated from asymptomatic roots by the culture method for molecular identification of the 18S rRNA gene. The dominant fungal endophyte (Penicillium sp.) in the community was later used in inoculation experiments to assess its effect on maximum quantum efficiency of photosystem II (PSII), (Fv/Fm) actual PSII efficiency ((PSII)), and non-photochemical quenching (NPQ). Total sugars, starch content, malonaldehyde (MDA), nitrogen content (%) and growth traits were also measured. Important Findings Whereas phi(PSII) increased significantly in endophyte-inoculated plants, NPQ was found to decrease. No effect of endophyte inoculation on sugars and MDA was detected, but starch content, leaf nitrogen content, number of leaves and shoot biomass were found to increase. Results revealed that inoculation of endophytic Penicillium fungal isolate can provide significant physiological benefits to the host plant P. chilensis. Its presence resulted in greater PSII efficiency and higher leaf nitrogen and carbohydrate content, enhancing host plant growth. These findings highlight the importance of considering the fungal endophyte community of this vulnerable species as an important tool to the design of further revegetation and conservation programs.
英文关键词	root endophytic fungi PSII efficiency nitrogen content plant growth promotion starch accumulation arid habitats
类型	Article
语种	英语
国家	Chile
收录类别	SCI-E
WOS记录号	WOS:000461146600008
WOS关键词	CHLOROPHYLL FLUORESCENCE ; PROMOTING MICROORGANISMS ; CHENOPODIUM-QUINOA ; SONORAN DESERT ; PLANT ; RESTORATION ; RESPONSES ; SOIL ; PHOTOSYNTHESIS ; DIVERSITY
WOS类目	Plant Sciences ; Ecology ; Forestry
WOS研究方向	Plant Sciences ; Environmental Sciences & Ecology ; Forestry
资源类型	期刊论文
条目标识符	http://119.78.100.177/qdio/handle/2XILL650/217277
作者单位	1.Univ Santiago Chile, Dept Ciencias Ambiente, Max Planck Partner Grp, Av Libertador Bernardo OHiggins 3363, Santiago, Chile; 2.Univ La Serena, Inst Invest Multidisciplinario Ciencias & Tecnol, Av Raul Bitran 1305, La Serena, Chile; 3.Univ Santiago Chile, Lab Quim Ecol, Av Libertador Bernardo OHiggins 3363, Santiago, Chile; 4.Univ La Serena, Dept Biol, Av Raul Bitran 1305, La Serena, Chile; 5.Univ Concepcion, Dept Bot, Barrio Univ S-N, Concepcion, Chile
推荐引用方式 GB/T 7714	Gonzalez-Teuber, Marcia,Urzua, Alejandro,Morales, Andrea,et al. Benefits of a root fungal endophyte on physiological processes and growth of the vulnerable legume tree Prosopis chilensis (Fabaceae)[J],2019,12(2):264-271.
APA	Gonzalez-Teuber, Marcia,Urzua, Alejandro,Morales, Andrea,Ibanez, Cristian,&Bascunan-Godoy, Luisa.(2019).Benefits of a root fungal endophyte on physiological processes and growth of the vulnerable legume tree Prosopis chilensis (Fabaceae).JOURNAL OF PLANT ECOLOGY,12(2),264-271.
MLA	Gonzalez-Teuber, Marcia,et al."Benefits of a root fungal endophyte on physiological processes and growth of the vulnerable legume tree Prosopis chilensis (Fabaceae)".JOURNAL OF PLANT ECOLOGY 12.2(2019):264-271.