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标题：ENDOPHYTIC FUNGI FROM CARALLUMA ACUTANGOLA CAN SECRETE PLANT GROWTH PROMOTING ENZYMES
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作者：Sajid Ali ; Sumera Afzal Khan ; Muhammad Hamayun 等
期刊名称：Fresenius Environmental Bulletin
印刷版ISSN：1018-4619
出版年度：2019
卷号：28
期号：4
页码：2688-2696
语种：English
出版社：PSP Publishing
摘要：Fungal endophytes can establish beneficial relationship with the host plants. The endophytes help in the growth of host plants under stress conditions by secreting various bioactive compounds. To discover potent endophytes, we have isolated some of the fungi from medicinally important plant Caral- luma acutangula. The isolated endophytes were assessed for extra-cellular enzymes [1-aminocyclopro- pane-1-carboxylate (ACC) deaminase, cellulases, phosphatases and glucosidases)] and IAA production. The potent endophytes have been identified as Paecilomyces variotii, Penicillium purpurogenum and Epicoccum nigrum on the basis of internal transcribed spacer (ITS) region homology. The endophytic strains P. variotii and E. nigrum have produced IAA, phosphatases and glucosidases in significantly higher amounts. Whereas, a higher activity of ACC deaminase (300 nmol α- ketobutyrate mg~(-1) h~(-1)) have been noticed in P. purpurogenum and P. variotii. The production of IAA, ACC deaminase, celluloses, phosphatases and glucosidases by the isolated endophytes concludes that they can support the host plants under stress conditions.
关键词：Caralluma acutangular;extra-cellular enzymes;indole acetic acid;ACC deaminase;fungal endophytes