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Trichoderma sp. GL02에 의한 고추 식물의 건조 스트레스 완화 효과 KCI 등재

Effect of Trichoderma sp. GL02 on alleviating Drought Stress in Pepper Plants

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한국유기농업학회지 (Korea Journal of Organic Agriculture)
한국유기농업학회 (Korea Association Of Organic Agriculture)
초록

Drought stress is one of major environmental stresses in plants; this leads to reduce plant growth and crop yield. In this study, we selected fungal isolate for mitigating drought stress in pepper plants. To do this, 41 fungi were isolated from rhizosphere or bulk soils of various plants in Jeju, Gangneung, Hampyeong in Korea. Out of 41 isolates, we screened two isolates without phytotoxicity through seed germination of tomato, pepper, and cabbage treated with fungal spores; through following plant assay, we selected GL02 as a candidate for alleviating drought stress in pepper plants. As a result of greenhouse test of pepper plants in drought condition, the stomatal conductance on leaves of pepper plants treated with GL02 was increased, whereras the malondialdehyde (MDA) and electrolyte leakage were decreased compared to that in control plants. When stressed plants were rewatered, stomatal conductance of the plants treated with GL02 was increased; the electrolyte leakage was decreased. Based on internal transcribed spacer (ITS) sequencing analysis, isolate GL02 was belonging to genus Trichoderma. Taken together, drought stress in pepper plants treated with GL02 was alleviated, when it was rewatered after drought-stressed, the plants could be recovered effectively. Therefore, Trichoderma sp. GL02 could be used as a bio-fertilizer to alleviate drought stress in pepper plants.

목차
Ⅰ. 서 론
Ⅱ. 재료 및 방법
    1. 미생물 분리
    2. 발아율 검정
    3. 건조스트레스 완화 곰팡이 선발 및 검정
    4. GL02 동정
    5. 통계분석
Ⅲ. 결과 및 고찰
    1. 곰팡이 선발
    2. 선발 곰팡이 가뭄 내성 평가
    3. 고추 식물에서 건조 스트레스 완화 효과 검정
    4. GL02 동정
Ⅳ. 적 요
References
저자
  • 김상태(국립농업과학원 농업미생물과/동아대학교 응용생명과학과) | Kim Sang Tae
  • 유성제(국립농업과학원 농업미생물과/경상대학교 농업생명자원학과) | Yoo Sung-Je
  • 송재경(국립농업과학원 농업미생물과) | Song Jaekyeong
  • 원항연(국립농업과학원 농업미생물과) | Weon Hang-Yeon
  • 상미경(국립농업과학원 농업미생물과) | Sang Mee Kyung Corresponding author