인문학
사회과학
자연과학
공학
의약학
농수해양학
예술체육학
복합학
DBpia AI
AI 에이전트
AI 아이디어
AI 리더
AI 뷰어
Citeasy
크롬 서지관리 다운로드
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
Fruit ripening in tomato fruits comprises dramatic metabolic changes that are regulated by environmental factors. Light not only drives photosynthesis but also acts as a critical signal regulating plant growth, development, and the quality of produce. However, it is unclear how plants sense light signals in the environment to regulate fruit quality. It is demonstrated that the accumulation of Long Hypocotyl 5 (HY5) protein peaks at the breaker stage of fruit maturity, independent of fruit bagging. Genetic manipulation of HY5 reveals that its knockout delays carotenoid synthesis and sucrose conversion, while its overexpression promotes fruit ripening. Molecular and biochemical analyses show that HY5 directly activates the transcript of the key carotenoid synthesis genes, such as Phytoene Synthase 1 (PSY1) and Phytoene Desaturase (PDS), as well as the sucrose metabolism genes, including Lycopersicum Invertase (LIN5, LIN6), Vacuolar Invertase (VI) and Sucrose Synthase (SS1, SS7). Importantly, grafting experiments reveal that HY5 acts as a systemic signal, translocating from leaves to fruits to promote ripening. Furthermore, nightly lighting with red or blue LED greatly improves fruit quality. In summary, the results establish that HY5 as a mobile protein that mediates the systemic light regulation of fruit ripening, offering practical applications for improving fruit quality.
인공지능 문자 인식 모델을 통해 추출된 텍스트로, 일부 오타나 오류가 포함될 수 있으나 지속적으로 개선 중입니다.
오류를 발견하셨다면 해당 부분을 드래그한 후 ' 를 통해 신고해주세요.
오류를 발견하셨다면 해당 부분을 드래그한 후 ' 를 통해 신고해주세요.
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