지원사업
학술연구/단체지원/교육 등 연구자 활동을 지속하도록 DBpia가 지원하고 있어요.
커뮤니티
연구자들이 자신의 연구와 전문성을 널리 알리고, 새로운 협력의 기회를 만들 수 있는 네트워킹 공간이에요.
초록· 키워드
오류제보하기
The occurrence of exotic weeds and their influx into farmlands due to climate change poses many problems. Therefore, it is necessary to generate a prediction model for the occurrence pattern of these exotic weeds based on scientific evidence and devise prevention measures. The photosynthetic apparatus is known as the most temperature sensitive component of a plant cell and its initial response to temperature stress is to inhibit the activation of photosystem II. This study investigated the potential of OJIP transients in assessing temperature stress in exotic weeds. The four exotic weeds currently flowing into Korean farmlands include Amaranthus spinosus, Conyza bonariensis, Crassocephalum crepidioides, and Amaranthus viridis. These weeds were treated at 5°C, 10°C, 15°C, 20°C, 25°C, 30°C, 35°C, and 40°C and the OJIP curves and JIP parameters were measured and analyzed. The results showed that heat and chilling stress affected the photosystem II (PSII) electron transport of A. spinosus, whereas C. crepidioides and A. viridis were more affected by high-temperature stress than by low-temperature stress. Lastly, C. bonariensis showed resistance to both high and low-temperature stress. The results of this study suggest that OJIP transients and JIP parameters can be used to analyze damage to the photosynthetic apparatus by temperature stress and that they can serve as sensitive indicators for the occurrence pattern of exotic weeds.
목차
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참고문헌 (45)
참고문헌 신청
Apostolova EL / 2011 / Handbook of Plant and Crop Stress / CRC press :577~591
Björkman O / 1987 / Photon yield of O2 evolution and chlorophyll fluorescence at 77 K among vascular plants of diverse origins / Planta 170:489~504
Bradley BA / 2010 / Climate change increases risk of plant invasion in the Eastern United States / Biol. Invasions 12:1855~1872
Cariñanos P / 2011 / Urban green zones and related pollen allergy: A review. Some guidelines for designing spaces with low allergy impact / Landsc. Urban Plan. 101:205~214
Chen LS / 2009 / Photosystem 2 is more tolerant to high temperature in apple (Malus domestica Borkh.) leaves than in fruit peel / Photosynthetica 47:112~120
Björkman O / 1987 / Photon yield of O2 evolution and chlorophyll fluorescence at 77 K among vascular plants of diverse origins / Planta 170:489~504
Bradley BA / 2010 / Climate change increases risk of plant invasion in the Eastern United States / Biol. Invasions 12:1855~1872
Cariñanos P / 2011 / Urban green zones and related pollen allergy: A review. Some guidelines for designing spaces with low allergy impact / Landsc. Urban Plan. 101:205~214
Chen LS / 2009 / Photosystem 2 is more tolerant to high temperature in apple (Malus domestica Borkh.) leaves than in fruit peel / Photosynthetica 47:112~120
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