Antimicrobial and plant growth-promoting activities of bacterial endophytes isolated from Calotropis procera(Ait.)***
作者机构：Plant-Microbe Interactions LabDepartment of BotanyAbdul Wali Khan University MardanKPPakistan Department of BotanyBacha Khan University CharsaddaCharsadda24420Pakistan Department of Food Science and TechnologyAbdul Wali Khan University MardanMardan23200Pakistan Centre of Biotechnology and MicrobiologyUniversity of PeshawarPeshawar25000Pakistan Department of BotanyIslamia College UniversityPeshawar25000Pakistan Department of Applied BiosciencesKyungpook National UniversityDaegu41566Korea
出 版 物：《BIOCELL》 (生物细胞（英文）)
年 卷 期：2021年第45卷第2期
页 面：363-369页
核心收录：
主 题：Endophytic bacteria Growth promotion Antimicrobial activity Plant-microbe interaction
摘 要：Bacterial endophytes are beneficial to their hosts as they can fix nitrogen in the soil and make it available to the *** bacteria also secrete plant growth-promoting hormones to support their host plants under normal as well as stress *** current study aimed to isolate endophytic bacteria from different parts of Calotropis procera,i.e.,roots,stem and leaves of Calotropis procera(Ait.)*** were collected from the Lundkhwar,district Mardan.A total of 12 bacterial strains,i.e.,six from roots,three from the stem and three from the leaves were *** strains were screened for their growth-promoting activity in rice plants because rice shows a quick and easy response to the bioactive compounds present in the culture filtrate(CF)of the potent endophytic *** rice plants were cultivated in pots containing 30 mL of 0.8%w/v water-agar *** pots were placed in a growth chamber,operated at 28±0.3℃ for 14 h(day);and 25±0.3℃ for 10 h(night),at 70%*** the isolated strains,R1,S1,S3,L1,R5 and R6 showed visible growth promotion in rice *** biochemical analysis revealed that the strains were able to produce indole acetic acid(IAA)and flavonoids in higher ***,the strains also produced bioactive compounds that inhibited the growth of Escherichia coli and Aspergillus flavus using the well diffusion *** the results,it was concluded that these strains can secrete potent compounds that can promote the host plant growth and inhibit the growth of pathogenic microorganisms and,therefore,can be used as bio-fertilizer and bio-control agents.
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