LED Light Quality Protects Iron Deficiency and Improves Photosynthesis and Biomass Yield in Alfalfa (Medicago sativa L.)

서지정보

ㆍ발행기관 : 한국초지조사료학회 ㆍ수록지정보 : 한국초지조사료학회지 / 43권 / 3호
ㆍ저자명 : Ki-Won Lee, Sang-Hoon Lee, Yowook Song, Hyung Soo Park, Jae Hoon Woo, Bo Ram Choi, Md Atikur Rahman

목차

Ⅰ. INTRODUCTION
Ⅱ. MATERIALS AND METHODS
1. Alfalfa growth in response to LED light
2. Determination of photosynthesis, chlorophyll contentand morphological parameters
3. Gene expression analysis
4. Statistical analysis
Ⅲ. RESULTS AND DISCUSSION
1. Fe deficiency caused phenotypic and physiologicalchanges in alfalfa
2. Fe deficiency declined alfalfa growth and biomassyield
3. Blue light enhanced Fe, Zn and S-transportergenes, which overcomed Fe-deficiency in alfalfa
Ⅳ. CONCLUSIONS
Ⅴ. ACKNOWLEDGEMENTS

영어 초록

Iron (Fe) is a vital element for plants and other organisms, involving in several physiological processes including respiration, chlorophyll biosynthesis, and photosynthesis. Unfortunately, how Fe accumulation regulates in response to light quality has not been well established in plants. Therefore, the aim of the study was to explore the mechanism of Fe homeostasis by light quality. In this study, we found morpho-physiological attributes were significantly improved in response to blue (λmax: 450) compared to white (λ max: 500) and red (λmax: 660) light. The root-shoot length, plant biomass, photosynthesis efficiency (Fv/Fm) and leafgreen (SPAD) significantly declined in response to white and red light. However, these parameters were improved and iron deficiency was substantially alleviated by blue light exposure in alfalfa seedlings. This study might be useful to the forage breeders and farmers for improving alfalfa yield and nutritional benefits.

참고 자료

없음