|
KMID : 0364820150510040347
|
|
Korean Journal of Microbiology
2015 Volume.51 No. 4 p.347 ~ p.354
|
|
|
Bacterial core community in soybean rhizosphere
|
|
Lee Young-Mi
Ahn Jae-Hyung
Choi Yu-Mi
Weon Hang-Yeon
Yoon Jung-Hoon
Song Jae-Kyeong
|
|
|
Abstract
|
|
|
|
Soybean is well known to be originated from Korea and far-east Asian countries, and studies of many root nodule bacteria associated with soybean have mainly-focused on nitrogen fixation, but much less study was carried out on bacterial community in the rhizosphere of soybean. In this study, we analyzed the bacterial community in rhizosphere of Korean soybean, Daepungkong using the pyrosequencing method based on the 16S rRNA gene to characterize the change of the rhizosphere community structure according to the growth stages of soybeans and to elucidate bacterial core community in rhizosphere of soybean. Our results revealed that bacterial community of rhizosphere soil differed from that of bulk soil and was composed of a total of 21 bacterial phyla. The predominant phylum in the rhizosphere of soybean was Proteobacteria (36.6?42.5%) and followed by Acidobacteria (8.6?9.4%), Bacteroidetes (6.1?10.9%), Actinobacteria (6.4?9.8%), and Firmicutes (5.7?6.3%). The bacterial core community in soybean rhizosphere was mainly composed of the operational taxonomic units (OTUs) belonging to the phylum Proteobacteria throughout all growth stages. The OTU00006 belonged to the genus Bradyrhizobium had the highest abundance and Steroidobacter, Streptomyces, Devosia were followed. These results show that bacterial core community in soybean rhizosphere was mainly composed of OTUs associated with plant growth promotion and nutrient cycles.
|
|
|
KEYWORD
|
|
|
bacteria, community, core, pyrosequencing, rhizosphere, soybean
|
|
|
FullTexts / Linksout information
|
|
|
|
|
|
Listed journal information
|
|
|
|