|本期目录/Table of Contents|

[1]李忠玲,周晓伦,王卫星,等.1株具促生作用的氢氧化细菌的分离及鉴定[J].江苏农业科学,2016,44(08):500-503.
 Li Zhongling,et al.Isolation and identification of hydrogen-oxidizing bacteria with potential in promoting plant growth[J].Jiangsu Agricultural Sciences,2016,44(08):500-503.
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1株具促生作用的氢氧化细菌的分离及鉴定(PDF)
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《江苏农业科学》[ISSN:1002-1302/CN:32-1214/S]

卷:
第44卷
期数:
2016年08期
页码:
500-503
栏目:
资源与环境
出版日期:
2016-08-25

文章信息/Info

Title:
Isolation and identification of hydrogen-oxidizing bacteria with potential in promoting plant growth
作者:
李忠玲1 周晓伦2 王卫星2 牛李莹2 万建新3 王卫卫2
1.陕西省科学院酶工程研究所,陕西西安 710600; 2.西北大学生命科学学院,陕西西安 710069; 3.平凉医学高等专科学校,甘肃平凉 744000
Author(s):
Li Zhonglinget al
关键词:
氢氧化细菌铁载体IAAACC脱氨酶
Keywords:
-
分类号:
Q939.9
DOI:
-
文献标志码:
A
摘要:
为了从沙打旺(Astragalus adsurgens Pall.)根际土壤分离具有促生潜力的氢氧化细菌,鉴定其种属并研究其促生机制,利用连续通氢装置分离筛选氢氧化细菌,Salkowski比色法测定产吲哚乙酸(IAA)能力,2,4-二硝基苯肼法测定1-氨基环丙烷-1-羧酸(ACC)脱氨酶活性,通用CAS平板法检测铁载体产生,再结合16S rDNA序列分析和生理生化试验结果鉴定细菌种属。结果表明,筛选出1株具有较高促生潜力的氢氧化细菌SDW-16,该菌株具有分泌铁载体的能力,产IAA的量为21.62 μg/mL,ACC脱氨酶活性为8 694.55 nmol/(mg·h)。结合生理生化和16S rDNA序列(GenBank登录号:KF835389)分析,鉴定其为荧光假单胞菌。菌株SDW-16具有多项促生特征且均高于或达到了其他报道中相关水平,说明菌株SDW-16有较高的促生潜力和研究价值,同时也初步阐明氢氧化细菌的促生机制。在荧光假单胞菌中发现氢氧化细菌尚属首次,丰富了人们对氢氧化细菌分类地位的认识。
Abstract:
-

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备注/Memo

备注/Memo:
收稿日期:2015-06-23
基金项目:国家自然科学基金(编号:41571243)。
作者简介:李忠玲(1973—),女,黑龙江讷河人,硕士,副研究员,研究方向为生物技术。E-mail:610253095@qq.com。
通信作者:王卫卫,博士,教授,主要从事豆科植物-根瘤菌共生固氮生态生理学及根际微生物多样性研究。E-mail:wwwang@nwu.edu.cn。
更新日期/Last Update: 2016-08-25