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지앙 링민,강세원,김성건,정재철,김차영,김대혁,김석원,이지영,Jiang, Lingmin,Kang, Se Won,Kim, Song-Gun,Jeong, Jae Cheol,Kim, Cha Young,Kim, Dae-Hyuk,Kim, Suk Weon,Lee, Jiyoung The Microbiological Society of Korea 2019 미생물학회지 Vol.55 No.2
Paenibacillaceae계의 Cohnella 속은 다양한 환경 속에서 서식한다. 여기에 우리는 한국 한라산 꼭대기의 구상나무(Abies koreana) 근권 토양으로부터 분리된 Cohnella sp. HS21의 전체 게놈 서열을 보고한다. 균주 HS21은 원형 염색체 7,059,027 bp와 44.8%의 GC 함량을 가지고 있다. 5,939개의 단백질 코딩 유전자와 78개의 트랜스퍼 (tRNA) 유전자, 27개의 리보솜 RNA (rRNA) 유전자, 4개의 비 코딩 RNA 유전자(ncRNA), 90개의 위 유전자가 존재했다. 박테리아는 항생제 관련 유전자 클러스터와 식물 세포벽 분해 효소를 코딩하는 유전자를 포함하고 있다. The genus Cohnella, which belongs to the family Paenibacillaceae, inhabits a wide range of environmental niches. Here, we report the complete genome sequence of Cohnella sp. HS21, which was isolated from the rhizospheric soil of Korean fir (Abies koreana) on the top of Halla Mountain in the Republic of Korea. Strain HS21 features a 7,059,027 bp circular chromosome with 44.8% GC-content. Its genome contains 5,939 protein-coding genes, 78 transfer RNA (tRNA) genes, 27 ribosomal RNA (rRNA) genes, 4 noncoding RNA genes (ncRNA), and 90 pseudogenes. The bacterium contains antibiotic-related gene clusters and genes encoding plant cell wall-degrading enzymes.
Changes in Soil Chemical Properties by Applying Microbial Fertilizers
Jeong-Sup Song(송정섭),Jung-Ae Kim(김정애),Hyun-Jun Jang(장현준),Dae-Hyuk Kim(김대혁),Sook-Young Park(박숙영),Yangseon Kim(김양선) 한국토양비료학회 2021 한국토양비료학회 학술발표회 초록집 Vol.2021 No.11
Plant uptake nutient for growth and reproduction, the nutrients derive originally from the mineral component of the soil. Diverse and numerous microorganisms are component of ecosystem including plants. Some of these microbes, such as nitrogen fixing symbiotic bacteria, play important roles in plant growth by enhancing mineral nutrition. Recently the market of microbial fertilizer are growing in terms of environmental protection. Microbial fertilizer improves soil nutrients, crop stress and disease resistance, promotes plant growth and no pollution to the environment. This study evaluated in vitro activity of nitrogen fixing and phoshate solubilzing bacteria with microbial fertilizers currently on sale. Especially we investigated changes in soil chemical properties according to the interaction of microorganisms, plants, and soil after treatment with microbial fertilizer. In addition, sterilized soil and sterilized water were used to reduce other effects besides microorganisms, and were cultivated by randomized blocks method using ports indoors. The result was analyzed by applying the soil chemical analysis method of the National Institute of Agricultural Sciences. As a result, phosphate solubilization and nitrogen fixing ability were confirmed in several microbial fertilizers. Among the soil treatment test, pH (1:5) were increased in all microbial fertilizers tested in this study, and available phosphorus (Lancaster), exchangeable cation (NH₄OAc, ICP-MS) tended to be decreased. Conclusively, these results could provide comprehensive understanding of the effects of microbial fertilizers and their industrial applications.