ACC deaminase 활성이 높은 균주인 Enterobacter ludwigii SJR3를 이용하여 건조와 염분 스트레스 환경에서 토마토 식물의 생장촉진 효과와 스트레스-관련 유전자의 발현을 조사하였다. 4주 키운 토마토...
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https://www.riss.kr/link?id=A102310254
김나은 (강원대학교) ; 송홍규 (강원대학교) ; Kim, Na-Eun ; Song, Hong-Gyu
2016
Korean
KCI등재,SCOPUS
학술저널
148-156(9쪽)
0
0
상세조회0
다운로드국문 초록 (Abstract)
ACC deaminase 활성이 높은 균주인 Enterobacter ludwigii SJR3를 이용하여 건조와 염분 스트레스 환경에서 토마토 식물의 생장촉진 효과와 스트레스-관련 유전자의 발현을 조사하였다. 4주 키운 토마토...
ACC deaminase 활성이 높은 균주인 Enterobacter ludwigii SJR3를 이용하여 건조와 염분 스트레스 환경에서 토마토 식물의 생장촉진 효과와 스트레스-관련 유전자의 발현을 조사하였다. 4주 키운 토마토 식물에 SJR3 균주 접종 후 건조 스트레스와 염분 스트레스를 처리하면서 1주일 후 식물의 생장을 비교하였다. 건조 스트레스 환경에서는 균주 접종군이 비접종군에 비해 뿌리와 줄기 길이 및 습윤과 건조중량이 각각 37.8, 37.2, 96.8과 146.6% 증가하였고 염분 스트레스 환경에서는 각각 19.2, 25.4, 19.5와 105.8% 증가하였다. 또한 스트레스에 반응하여 토마토 잎에 축적되는 proline의 함량은 크게 늘어나지만 건조와 염분 스트레스 처리 시 비접종 대조군 보다 균주 접종군에서 62.1%와 54.1% 감소되었다. 스트레스 환경에서 자라난 토마토 식물에서 스트레스-관련 유전자들인 ACC oxidase의 유전자 ACO1과 ACO4, ethylene response factor의 유전자 ERF1과 ERF4 등의 상대적인 발현량을 조사하였다. 비 스트레스 대조군과 비교해서 건조와 염분 스트레스 환경의 토마토 식물에서 모든 스트레스-관련 유전자들의 발현이 크게 증가하였으나 SJR3 균주를 접종한 식물의 유전자들은 대부분이 비 스트레스-처리 대조군과 유사한 정도의 유전자 발현량을 나타내었다. 따라서 E. ludwigii SJR3는 식물에서 건조와 염분 스트레스의 완화에 중요한 역할을 하여 작물의 생장을 촉진하고 생산성을 높일 수 있을 것으로 여겨진다.
다국어 초록 (Multilingual Abstract)
This study examined effects of Enterobacter ludwigii SJR3 showing a high 1-aminocyclopropane-1-carboxylate (ACC) deaminase activity, on growth of tomato plant and its expression of stress-related genes under drought and salt stress. SJR3 strain was in...
This study examined effects of Enterobacter ludwigii SJR3 showing a high 1-aminocyclopropane-1-carboxylate (ACC) deaminase activity, on growth of tomato plant and its expression of stress-related genes under drought and salt stress. SJR3 strain was inoculated at $10^6cell/g$ soil to 4-week grown tomato plants, and drought and salt stresses were treated. After additional incubation for 1 week, root length, stem length, fresh weight and dry weight of tomato plants treated with SJR3 increased by 37.8, 37.2, 96.8 and 146.6%, respectively compared to those of uninoculated plants in drought stress environment, and they increased by 19.2, 25.4, 19.5, and 105.8%, respectively in salt stress environment. Proline content in tomato leaves increased significantly under stress conditions as one of a protecting substance against stresses, but proline contents in tomato treated with SJR3 decreased by 62.1 and 54.1%, respectively. Relative expression of genes encoding ACC oxidase, ACO1 and ACO4, ethylene response factor genes ERF1 and ERF4, and some other stress-related genes were examined from tomato leaves. Compared to the non-stressed tomato, expressions of all stress-related genes increased significantly in the stressed tomato, but gene expressions in the inoculated tomato were similar to those of no-stressed control tomato. Therefore, E. ludwigii SJR3 may play an important role in mitigating drought and salt stress in plants, and can increase productivity of crops under various abiotic stresses.
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1 Chinnusamy, V., "Understanding and improving salt tolerance in plants" 45 : 437-448, 2005
2 Sacchi, N., "The single-step method of RNA isolation by acid guanidinium thiocyanate-phenol-chloroform extraction: twenty-something years on" 1 : 581-585, 2006
3 Dawood, M., "The changes induced in the physiological, biochemical and anatomical characteristics of Vicia faba by the exogenous application of proline under seawater stress" 93 : 54-63, 2014
4 Zhai, Q., "Screening of lactic acid bacteria with potential protective effects against cadmium toxicity" 54 : 23-30, 2015
5 Ashraf, M., "Roles of glycine betaine and proline in improving plant abiotic stress resistance" 59 : 206-216, 2007
6 Yang, J., "Rhizosphere bacteria help plants tolerate abiotic stress" 14 : 1-4, 2009
7 Gutterson, N., "Regulation of disease resistance pathways by AP2/ERF transcription factors" 7 : 465-471, 2004
8 Yim, W., "Real time expression of ACC oxidase and PR-protein genes mediated by Methylobacterium spp. in tomato plants challenged with Xanthomonas campestris pv. vesicatoria" 171 : 1064-1075, 2014
9 Gill, S., "Reactive oxygen species and antioxidant machinery in abiotic stress tolerance in crop plants" 48 : 909-930, 2010
10 Tiwari, S., "Pseudomonas putida attunes morphological, biochemical and molecular responses in Cicer arietinum L. during drought stress abd recovery" 99 : 108-117, 2016
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한반도 주변 해역으로부터 혐기성 미생물의 분리 및 분리 미생물의 특성 분석
학술지 이력
연월일 | 이력구분 | 이력상세 | 등재구분 |
---|---|---|---|
2023 | 평가예정 | 해외DB학술지평가 신청대상 (해외등재 학술지 평가) | |
2020-01-01 | 평가 | 등재학술지 유지 (해외등재 학술지 평가) | |
2013-12-02 | 학술지명변경 | 외국어명 : The Korean Journal of Microbiology -> Korean Journal of Microbiology | |
2010-01-01 | 평가 | 등재학술지 유지 (등재유지) | |
2008-01-01 | 평가 | 등재학술지 유지 (등재유지) | |
2006-01-01 | 평가 | 등재학술지 유지 (등재유지) | |
2004-01-01 | 평가 | 등재학술지 유지 (등재유지) | |
2001-01-01 | 평가 | 등재학술지 선정 (등재후보2차) | |
1998-07-01 | 평가 | 등재후보학술지 선정 (신규평가) |
학술지 인용정보
기준연도 | WOS-KCI 통합IF(2년) | KCIF(2년) | KCIF(3년) |
---|---|---|---|
2016 | 0.21 | 0.21 | 0.21 |
KCIF(4년) | KCIF(5년) | 중심성지수(3년) | 즉시성지수 |
0.26 | 0.24 | 0.48 | 0.02 |