논문 (학술지)
Exploring Responses to Light in the Monocot Model Plant, Brachypodium distachyon
| 등록번호 | RPMS-2019-0090760720 | SCI 구분
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※구분 : SCI(SCIE포함), 비SCI |
비SCI |
|---|---|---|---|
| 저자명 (주·공동저자) | Tran Quynh-Giao; Han Yun-Jeong; Hwang Ok-Jin; Hoang Quyen T.N.; Kim Jeong-Il | ||
| 논문구분 | 국내전문학술지 | 학술지명 | 한국자원식물학회지 |
| ISSN | 1226-3591 | 학술지 출판일자 | - |
| 학술지 볼륨번호 | 31 | 논문페이지 | 522 ~ 530 |
| 학술지 임팩트팩터 | 0.7722 | 기여율 | 80 % |
| DOI | 10.7732/kjpr.2018.31.5.522 | ||
| 초록 | Brachypodium distachyon has been developed as a monocot model plant for temperate grasses and bioenergy crops. Although B. distachyon research is moving forward rapidly, the study of photoresponses has not been explored. To extend our knowledge of responses to light in monocots, we performed photoresponse analysis of B. distachyon using two inbred lines, Bd21 and Bd21-3. In this study, we first compared growing phenotypes between the two lines and investigated coleoptile and primary leaf growths under dark, far-red, red, and white light conditions. The results showed that the growth of the two lines were similar until tillering stage, but other developmental stages from heading to senescence were much delayed in Bd21-3, which resulted in increased height and tiller numbers. Under different light conditions, primary leaf lengths were kept increasing during the growth period, whereas the coleoptile extension was inhibited 4 to 7 days after growth depending on the light conditions applied. These results suggest that the responses to light in B. distachyon can be examined by measuring coleoptile lengths approximately 7 days after seedling growth. Moreover, we selected light-responsive genes known in Arabidopsis thaliana, such as chlorophyll A/B binding protein (CAB), light-harvesting chlorophyll binding protein (Lhcb) and chalcone synthase (CHS), and confirmed their light-induced gene expression in B. distachyon. Therefore, the present study suggests that the inhibition of coleoptile growth can be used as the parameter to analyze photoresponses in the monocot model plant, and also provide the reference genes whose expression is induced by far-red and red light treatment. | ||
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