초록

○ 기후변화에 따른 가뭄 문제의 증가로 발생하는 문제를 해결하기 위한 환경 친화적인 방법으로 미생물을 활용하고자 하는 과제로 미생물의 유용한 기능을 활용하여 작물의 가뭄 피해를 완화하고 안정적으로 작물을 생산함으로써 환경 변화에 선제적으로 대응하였음
○ SCI 1편과 비SCI 4편의 논문을 게재하였음
○ 가뭄스트레스 내성 증진 미생물 특허를 5건 출원함
○ 현장 실용화를 위해 영농기술정보 2건을 제출함
○ 국내외 학술발표 12건과 홍보 4건을 수행함

(출처 : 요약서 3p)

Abstract ▼

□ Purpose&Contents
○ Drought is one of the major limiting factor of agricultural productivity and its intensity and incidence are likely to increase under climate change. In this study, plant growth promoting rhizobacteria (PGPR) were selected to alleviate of drought stress in some plants such as

□ Purpose&Contents
○ Drought is one of the major limiting factor of agricultural productivity and its intensity and incidence are likely to increase under climate change. In this study, plant growth promoting rhizobacteria (PGPR) were selected to alleviate of drought stress in some plants such as onion, garlic, pumpkin, and hot pepper. Their genomic and physiological traits were investigated. In addition, PGPR on indigenous bacterial community were analyzed.

□ Results
○ Under drought-stress and non-stressed conditions, the yield was increased by 18% and 15% in onion inoculated with Bacillus strain H5-9 and Variovorax strain PMC12 compared to non-inoculated plants, respectively. Inoculation of strain H15E-01 and H25R-13 led to significant increase in the yield by 13% and 6% in stressed and unstressed garlic plants, respectively. It is concluded that the inocula of PGPR strains specifically selected for drought tolerance can be suitable for agronomical applications, aimed at improving the crop growth and yielding performances under low water availability.
○ In pepper plants, two strains GLC02 and KJ40 were selected for a field test by measuring relative water content, malondialdehyde, plant growth, stomatal conductance under drought stress condition in planta trials; in pumpkin plants, three strains, GC01, H05E-12, H05R-04, were selected for a field test. Finally, pepper plants treated with strain KJ40 were tolerated to drought stress, increased productivity significantly; pumpkin plants treated with H05E-12 were less stressed compared to untreated control.
○ The strains, KJ40 and H5-9 enhanced drought stress tolerance in pepper and onion were identified as Peribacillus butanolivorans andBacillus altitudinis respectively. These strains were analyzed antagonistic activity against plant pathogens and plant growthpromoting activity. These strains have proline and spermidine producing related genes and many genes related production ofbutanediol and acetoin. In the application for extention it was shownthat yields of corn and soybean are increased by inoculation of the strain. Application of Peribacillus KJ40 enhanced microbial activity in rhizosphere of pepper and changed bacterial community structures.

□ Expected Contribution
○ The selected strains could be useful to alleviate drought stress and increase productivity, therfore, our findings of this study suggest that application of the selected strains can be utilized as a potential bio-stimulator or bio-fertilizer for mitigating drought stress as well as improving yield and fruit quality.
○ Support for researchers as research source by registration of bioresources and bioinformations, construction of basic research infra for practical use of drought tolerance enhancing microbes having effect on crops, and provision of genetic characterization for strengthening effect of beneficial microorganisms to crop

(출처 : SUMMARY 5p)

목차 Contents

• 표지 ... 1제출문 ... 2보고서 요약서 ... 3국 문 요 약 문 ... 4Summary ... 5목차 ... 6제 1 장 연구 개발 과제의 개요 ... 7 제 1 절 연구 개발 목적 ... 7 제 2 절 연구 개발의 필요성 ... 7 제 3 절 연구 개발 범위 ... 8제 2 장 연구 수행 내용 및 결과 ... 9 제 1 절 미생물 이용 인경채류의 가뭄 피해 완화 연구(제1세부) ... 9 제 2 절 미생물 이용 과채류의 가뭄 피해 완화 기술 연구(2세부) ... 18 제 3 절 가뭄 피해 완화 미생물의 특성 구명 및 활용 연구(3세부) ... 41제 3 장 목표달성도 및 관련분야 기여도 ... 77 제 1 절 목표대비 달성도 ... 77 제 2 절 정량적 성과(논문게재, 특허출원, 기타)를 기술 ... 78제 4 장 연구 결과의 활용 계획 ... 78제 5 장 연구 개발 결과의 보안 등급 ... 78제 6 장 연구시설·장비종합정보시스템에 등록한 연구시설·장비 현황 ... 78제 7 장 연구개발과제의 대표적 연구실적 ... 79제 8 장 기타사항 ... 79제 9 장 참고문헌 ... 79끝페이지 ... 84