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一株巨菌草内生细菌分离鉴定及促生特性研究

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本研究从巨菌草植物茎中分离出1株耐盐碱内生菌,对其进行了形态学观察和16S rRNA分子鉴定,还进行了生理生化和促生特性试验.结果显示,鉴定PJJ-1为泛菌属(Pantoea sp.),红色杆状,为革兰氏阴性菌.该菌株具有解磷、解硅酸盐、固氮、产铁载体等促生性能,在玉米和番茄的盆栽试验中具有一定的促生作用.本研究可为巨菌草的合理种植及生态治理提供参考.
Isolation and Identification of an Endophytic Bacterium from a strain of JUJUNCAO and its Growth-promoting Properties
In this study,we isolated and molecularly identified a strain of salinity-tolerant endophyte from the stem of JUJUNCAO plant.Morphological observation and 16S rRNA molecalar identification were conducted on it,and physiological biochemical and growth promoting experiments were also carried out.The results showed that PJJ-1 was identified as a red rod-shaped bacterium belonging to the Pantoea sp.genus,which was a Gram negative bacterium.This strain possessed the growth-promoting properties such as phos-phorus solubilisation,silicate solubilisation,nitrogen fixation,and siderophore production,and has been shown to have some growth-promoting effects in potting experiments of maize and tomato.This study can pro-vide a theoretical basis for the rational cultivation and ecological management of JUJUNCAO.

JUJUNCAOEndophytic bacteriaSalt alkali resistanceBiological traits

刘天金、谢玮轩、易听雨、陈诗瑜、吴佳霓、杜蒙蒙、张春源、赖泽成、叶文雨

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植物与微生物相互作用福建省高校重点实验室,福建农林大学生命科学学院,福建 福州 350002

福建农林大学未来技术学院(海峡联合研究院),福建 福州 350002

福建农林大学国家菌草工程技术研究中心,菌草与生态学院(碳中和学院),福建 福州 350002

自然资源部东南生态脆弱区监测修复工程技术创新中心,福建 福州 350000

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巨菌草 内生细菌 耐盐碱 生物学性状

2024

青海农林科技
青海省农林科学院 青海省林学会 青海省农学会

青海农林科技

影响因子:0.183
ISSN:1004-9967
年,卷(期):2024.(3)