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NTIS 바로가기한국환경농학회지 = Korean journal of environmental agriculture, v.39 no.3, 2020년, pp.273 - 279
박송이 (충북대학교 농업생명환경대학 응용생명공학부 원예학전공)
BACKGROUND: After transplanting, the recent abnormal low temperature caused physiological disorders of pepper seedlings. This study was conducted to evaluate the effects of UV-A LED, a physical elicitor, on the chilling tolerance of pepper seedlings. METHODS AND RESULTS: Seedlings were continuously ...
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핵심어 | 질문 | 논문에서 추출한 답변 |
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고추는 어떤 물질을 함유하고 있기 때문에 항산화효과와 항암효과를 가지고 있는가? | 고추는 카로티노이드, 비타민, 캡사이신과 같은 다양한 파이토케미컬을 다량 함유하고 있어 위액분비를 촉진시키고 체지방 분해에 도움을 주며 항산화효과와 항암효과를 갖는다고 보고되어 있다[1-3]. 국내 전체 농업 생산액 중 2%와 조미 채소류 중 1위를 차지하는 고추의 1인당 연간 고추 소비량은 3. | |
호온성 작물인 고추는 어느 정도 저온에서 냉해를 입는가? | 저온은 식물의 생리적 대사적 반응들을 저해하고 호흡과 광합성을 억제시켜 결국 식물의 생장과 영양학적 품질을 저하시킨다[4, 5]. 호온성 작물인 고추는 온도에 의해 생장과 개화에 미치는 영향이 크다고 보고되었으며 특히, 10°C 이하의 이상 저온에 의해 생리 장해 및 생육 지연과 같은 냉해를 입는다[6, 7]. 이러한 문제와 연관되어 고추의 재배면적과 생산량은 2000년대에 들어 감소하는 추이이며 실제로 2019년 고추의 재배면적과 생산량은 10년전 대비 각각 42%와 50%씩 감소하였다(통계청, 2009, 2019). | |
식물 생장과 발달을 제한하는 물리적 스트레스 중 UV-A와 같은 광 스트레스로부터 스스로 보호하고 방어하기 위해 식물이 하는 일은? | 320-400 nm 파장 영역을 갖는 UV-A은 식물의 생리적, 생화학적, 유전적 특성을 변화시킬 수 있어 식물 생장과 발달을 제한하는 물리적 스트레스 요인 중 하나이다[8, 9]. 식물은 UV-A와 같은 광 스트레스로부터 스스로 보호하고 방어하기 위해 플라보노이드, 안토시아닌, 카로티노이드와 같은 2차 대사산물의 생합성을 촉진한다[4, 10]. 이러한 2차 대사산물은 식물체가 고온, 저온, 건조, 병해충 등과 같은 외부 환경스트레스로 의해 생성하는 ROS(Reactive oxygen species)를 소거하는 높은 항산화능력을 갖고 있다[11, 12]. |
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