红树林来源细菌抑菌活性及其增肥潜力评估  

Evaluation of Antibacterial Activity and Fertilization Potential of Bacteria Derived From Mangrove Forests

作　　者：杨道茂[1] 周钰烨 李嘉欣 易家乐 杨勤伟 黄康隆 YANG Daomao;ZHOU Yuye;LI Jiaxin;YI Jiale;YANG Qinwei;HUANG Kanglong(College of Chemical Engineering,Huaqiao University,Xiamen 361021,China)

机构地区：[1]华侨大学化工学院,福建厦门361021

出　　处：《华侨大学学报（自然科学版）》2024年第5期654-660,共7页Journal of Huaqiao University(Natural Science)

摘　　要：通过平板对峙实验、菌丝生长速率抑制实验,测试细菌对禾谷镰刀菌、假禾谷镰刀菌、香蕉枯萎病菌、油茶炭疽病菌、巴西曲霉的抑菌活性,并通过固氮解磷实验、产γ-聚谷氨酸实验探究增肥潜力。结果表明:细菌YY9,暹罗芽孢杆菌T1,T6,贝莱斯芽孢杆菌T3对菌丝生长速率抑制率均达到80%以上;细菌YY6~YY12表现出较强的固氮能力,细菌YY9产γ-聚谷氨酸质量浓度达到(6.57±0.34)g·L^(-1)。The antibacterial activity of bacteria against Fusarium graminearum,Fusarium pesudograminearum,banana wilt fungus,Camellia oleifera,and Aspergillus brasiliensis were tested through plate confrontation experiments and mycelial growth rate inhibition experiments.The fertilization potential was explored through nitrogen fixation and phosphorus removal experiment,as well asγ-polyglutamic acid production experiment.The results show that bacteria YY9,Bacillus siamensis T1 and T6,Bacillus velezensis T3 have inhibition rate over 80%on mycelial growth rate.Bacteria YY6-YY12 show stronger nitrogen fixation ability,and the mass concentration ofγ-polyglutamic acid produced by bacteria YY9 can reach(6.57±0.34)g·L^(-1).

关 键 词：贝莱斯芽孢杆菌 暹罗芽孢杆菌 抑菌活性 固氮能力 Γ-聚谷氨酸 

分 类 号：S476[农业科学—农业昆虫与害虫防治]