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NTIS 바로가기Korean journal of crop science = 韓國作物學會誌, v.64 no.4, 2019년, pp.384 - 394
허지혜 (건국대학교 식량자원과학과) , 성혜주 (건국대학교 식량자원과학과) , 양운호 (농촌진흥청 국립식량과학원 중부작물부 재배환경과) , 정우석 (건국대학교 식량자원과학과)
We have investigated the effects of ambient temperature on the growth of wheat in Korea. The differences in the growth phase of wheat were compared according to the temperature treatment. The productive tiller number and dry weight were decreased in a plot under a higher temperature treatment. We fo...
핵심어 | 질문 | 논문에서 추출한 답변 |
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식물의 고온 스트레스 반응 기작에는 무엇이 관여하는가? | 식물의 고온 스트레스 반응 기작에는 Heat Shock Transcription Factors (HSFs), Heat Shock Proteins (HSPs), Dehydration Responsive Element Binding Protein 2A (DREB2A)와 같은 전사 인자(Transcription factor)가 관여하며, 전사조절 인자들의 단계적 발현으로 고온 스트레스에 관여하는하위 유전자들의 발현이 이어진다(Ohama et al., 2017). | |
밀의 특징은 무엇인가? | 밀(Triticum aestivum L.)은 서늘하고 건조한 지대에서 잘 자라며, 여름철 고온 환경은 밀 생산의 제한요인 중 하나로 알려져 있다. 온도 상승은 밀의 생산성을 크게 감소시키며, 전 세계 평균 온도가 1°C 상승함에 따라 밀 생산량은 최대 6%까지 감소할 것으로 보고 되었다(Shpiler & Blum, 1991;Asseng et al. | |
온도에 감응하여 개화·출수를 조절하는 유전자 중 하나인 VRN의 특징은 무엇인가? | 온도에 감응하여 개화·출수를 조절하는 유전자 중 하나인 VRN에는 VRN1, VRN2, VRN3가 알려져 있다. VRN1은저온 처리에 의해 발현이 증가하고, 개화 촉진 유전자 VRN3(FT)를 억제하는 VRN2의 작용을 막아 영양생장에서 생식생장으로 이행을 촉진시킨다. 반면 고온 처리에 의해 VRN1의 발현은 감소하고, VRN2의 발현은 증가한다고 보고되었다(Dixon et al., 2019). |
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