Azospirillum agricola sp. nov., a nitrogen-fixing species isolated from cultivated soil

International Journal of Systematic and Evolutionary Microbiology
Shih-Yao LinChiu-Chung Young

Abstract

A polyphasic approach was used to characterize a novel nitrogen-fixing bacterial strain, designated CC-HIH038T, isolated from cultivated soil in Taiwan. Cells of strain CC-HIH038T were Gram-stain-negative, facultatively aerobic and spiral-shaped, with motility provided by a single polar flagellum. The 16S rRNA gene sequence analysis of strain CC-HIH038T showed highest sequence similarity to Azospirillum doebereinerae (98.0 %), Azospirillum thiophilum (97.5 %), Azospirillum rugosum (97.4 %) and Azospirillum zeae (97.2 %) and lower sequence similarity ( < 97.0 %) to all other species of the genus Azospirillum. According to DNA-DNA association, the relatedness values of strain CC-HIH038T with A. doebereinerae, A. thiophilum, A. rugosum and A. zeae were 51.8 %, 41.2 %, 56.5 % and 37.5 %, respectively. Strain CC-HIH038T was able to grow at 20-37 °C and pH 7.0-8.0. Strain CC-HIH038T gave positive amplification for dinitrogen reductase (nifH gene); the activity was recorded as 8.4 nmol ethylene h- 1. The predominant quinone system was ubiquinone Q-10 and the DNA G+C content was 68.8 mol%. The major fatty acids found in strain CC-HIH038T were C16 : 0, iso-C18 : 0, C16 : 0 3-OH, C14 : 0 3-OH/iso-C16 : 1 and C18 : 1ω7c/C18 : 1ω6c. Based ...Continue Reading

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Sep 19, 2015·International Journal of Systematic and Evolutionary Microbiology·Shih-Yao LinChiu-Chung Young

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Citations

Dec 3, 2016·International Journal of Systematic and Evolutionary Microbiology·Mei-Hong ChenLi-Hong Qiu
Dec 3, 2016·International Journal of Systematic and Evolutionary Microbiology·Chi-Te LiuChiu-Chung Young
Feb 28, 2019·International Journal of Systematic and Evolutionary Microbiology·Rangasamy AnandhamSoon-Wo Kwon
May 29, 2019·International Journal of Systematic and Evolutionary Microbiology·Yunzhen YangJifeng Chen
Oct 28, 2019·International Journal of Systematic and Evolutionary Microbiology·Zhuo-Li ZhaoGuo-Xing Nie
Feb 3, 2021·International Journal of Systematic and Evolutionary Microbiology·Kai TangJian-Yu Meng
Mar 5, 2021·Vavilovskiĭ Zhurnal Genetiki I Selekt︠s︡ii·O V Turkovskaya, S N Golubev
Dec 7, 2021·Frontiers in Microbiology·Sara Gushgari-DoyleRomy Chakraborty

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