首页|Endophytic bacteria associated with endangered plant Ferula sinkiangensis K.M.Shen in an arid land:diversity and plant growth-promoting traits

Endophytic bacteria associated with endangered plant Ferula sinkiangensis K.M.Shen in an arid land:diversity and plant growth-promoting traits

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Ferula spp.are traditional medicinal plants found in arid land.Large-scale excavation for extracting bioactive compounds from the plants in arid regions of Xinjiang over the last few years has,however,significantly decreased their distributions.Due to the urgent need for preservation of these plant resources,along with the need of searching for alternative source of the useful metabolites,it is important to screen the endophytic microbial resources associated with the plant Ferula sinkiangensis K.M.Shen.In the study,a total of 125 endophytic bacteria belonging to 3 phyla,13 orders,23 families,and 29 genera were isolated based on 16S rRNA gene sequencing data.Among the different isolates,three strains isolated from roots were potential novel species of the genera Porpbyrobacter,Paracoccus and Amycolatopsis.In this study,79.4％ and 57.1％ of the total isolates were capable of producing indole-3-acetic acid (IAA) and siderophore,respectively.And,40.6％ of the strains inhibit the growth of fungal pathogen Alternaria alternata,17.2％ and 20.2％ strains were positive for antagonism against Verticillium dahlia 991 and V.dahlia 7,respectively.These results demonstrated that F.sinkiangensis is a rich reservoir of endophytic bacterial resources with potential for production of biologicallyimportant functions such as plant growth promoting factors.

endophytic bacteriaFerula sinkiangensisendangered speciesgrowth promoting

LIU Yonghong、GUO Jianwei、LI Li、Mipeshwaree D ASEM、ZHANG Yongguang、Osama A MOHAMAD、Nimaichand SALAM、LI Wenjun

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Key Laboratory of Biogeography and Bioresource in Arid Land,Xinjiang Institute of Ecology and Geography,Chinese Academy of Sciences,Urumqi 830011,China

University of Chinese Academy of Sciences,Beijing 100049,China

Key Laboratory of Crops with High Quality and Efficient Cultivation and Security Control,Yunnan Higher Education Institutions,Honghe University,Mengzi 661100,China

State Key Laboratory of Biocontrol and Guangdong Provincial Key Laboratory of Plant Resources,School of Life Sciences,Sun Yat-Sen University,Guangzhou 510275,China

Environmental Science Department,Institute for Post Graduate of Environment Study,Arish University,Arish 45511,Egypt

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This work was supported by the National Natural Science Foundation of ChinaThis work was supported by the National Natural Science Foundation of ChinaChina Postdoctoral Science FoundationVisiting Scholar Grant of State Key Laboratory of Biocontrol,Sun Yat-Sen UniversityWest Light Foundation of the Chinese Academy of Sciences

U1403101312000082016M602566SKLBC14F02

2017

10.1007/s40333-017-0015-5

干旱区科学
中国科学院新疆生态与地理研究所,科学出版社

干旱区科学

CSTPCDCSCDSCI
影响因子：1.743
ISSN：1674-6767
年,卷(期)：2017.9(3)
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