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NTIS 바로가기Journal of plant biotechnology = 식물생명공학회지, v.43 no.3, 2016년, pp.281 - 292
정미선 (경상대학교 대학원 응용생명과학부, 식물생명공학연구소) , 김세원 (한국원자력연구원 첨단방사선연구소) , 윤대진 (경상대학교 대학원 응용생명과학부, 식물생명공학연구소)
Plants can recognize and respond in various ways to diverse environmental stresses, including pathogenic microorganisms, salt, drought, and low temperature. Salicylic acid (SA) is one phytohormone that plays important roles in the regulation of plant growth and development. Nonexpressor of pathogene...
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핵심어 | 질문 | 논문에서 추출한 답변 |
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NPR1는 전사인자와 결합하여 어떤 유전자의 발현을 조절하는가? | 이렇듯, 식물 면역반응에 중요한 역할을 하는 NPR1은 직접적인 DNA 결합부위는 없지만, 전사인자와 결합하여 PR 유전자의 발현을 조절하는 전사 조절인자이다. 병원균에 감염되지 않은 상태에서 NPR1은 NPR1 단백질 서로간에 이황화 결합(S-S disulfide bond)을 형성함으로써 올리고머(oligomer) 형태로 세포질에 존재한다(Mou et al. | |
비생물학적인 스트레스는 무엇을 의미하는가? | 환경 스트레스는 인위적으로 크게 생물학적(biotic) 스트레스와 비생물학적(abiotic) 스트레스로 구분 된다. 그 중 생물학적 스트레스는 병원균과 같은 유기체에 의해 유도되는 스트레스를, 비생물학적인 스트레스는 고염, 가뭄, 저온과 같은 비유기체에 의한 스트레스를 의미한다. | |
비생물학 스트레스 중 가뭄 스트레스를 극복하기 위해 식물은 어떤 작용을 하는가? | 일반적으로 식물이 가뭄 스트레스를 극복하고 가뭄 스트레스에 노출되지 않기 위해서는 적절하고 지속적인 물 공급이 필수적이다. 그러나 가뭄 스트레스를 극복하기 위해 식물은 형태학적으로는 뿌리가 흙으로부터 수분을 잘 흡수할 수 있게 뿌리발달이 일어나며, 지상부 조직은 기공의 조절을 통해 호흡을 통한 물의 소비를 감소시킨다. |
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