title: Influence of green, red and blue light emitting diodes on multiprotein complex proteins and photosynthetic activity under different light intensities in lettuce leaves (Lactuca sativa L.).
abstract: The objective of this study was to investigate the response of light emitting diodes (LEDs) at different light intensities (70 and 80 for green LEDs, 88 and 238 for red LEDs and 80 and 238 μmol m-2 s-1 for blue LEDs) at three wavelengths in lettuce leaves. Lettuce leaves were exposed to (522 nm), red (639 nm) and blue (470 nm) LEDs of different light intensities. Thylakoid multiprotein complex proteins and photosynthetic metabolism were then investigated. Biomass and photosynthetic parameters increased with an increasing light intensity under blue LED illumination and decreased when illuminated with red and green LEDs with decreased light intensity. The expression of multiprotein complex proteins including PSII-core dimer and PSII-core monomer using blue LEDs illumination was higher at higher light intensity (238 μmol m-2 s-1) and was lowered with decreased light intensity (70-80 μmol m-2 s-1). The responses of chloroplast sub-compartment proteins, including those active in stomatal opening and closing, and leaf physiological responses at different light intensities, indicated induced growth enhancement upon illumination with blue LEDs. High intensity blue LEDs promote plant growth by controlling the integrity of chloroplast proteins that optimize photosynthetic performance in the natural environment.
authors.affiliation: Department of Horticulture, College of Agricultural Life Sciences, Chonnam National University, 300 Young Bong-Dong Buk-Gu, Gwangju, 500-757, Korea. sobiyakhan126@gmail.com.
authors.forename: Sowbiya
authors.initials: S
authors.lastname: Muneer
authors.affiliation: Department of Horticulture, College of Agricultural Life Sciences, Chonnam National University, 300 Young Bong-Dong Buk-Gu, Gwangju, 500-757, Korea. ejldj@hanmail.net.
authors.forename: Eun Jeong
authors.initials: EJ
authors.lastname: Kim
authors.affiliation: Department of Horticulture, College of Agricultural Life Sciences, Chonnam National University, 300 Young Bong-Dong Buk-Gu, Gwangju, 500-757, Korea. bjs5187@naver.com.
authors.forename: Jeong Suk
authors.initials: JS
authors.lastname: Park
authors.affiliation: Department of Horticulture, College of Agricultural Life Sciences, Chonnam National University, 300 Young Bong-Dong Buk-Gu, Gwangju, 500-757, Korea. leetag@chonnam.ac.kr.
authors.forename: Jeong Hyun
authors.initials: JH
authors.lastname: Lee
mesh_terms: D004307:Dose-Response Relationship, Radiation; D004591:Electrophoresis, Polyacrylamide Gel; D006874:Hydrostatic Pressure; D018545:Lactuca / Q000378:metabolism / Q000502:physiology / Q000528:radiation effects*; D008027:Light; D046912:Multiprotein Complexes / Q000378:metabolism*; D010788:Photosynthesis / Q000502:physiology*; D018515:Plant Leaves / Q000378:metabolism / Q000502:physiology / Q000528:radiation effects*; D054046:Plant Stomata / Q000502:physiology; D018526:Plant Transpiration / Q000502:physiology; D012273:Ribulose-Bisphosphate Carboxylase / Q000378:metabolism; D012666:Semiconductors; D020524:Thylakoids / Q000378:metabolism / Q000502:physiology / Q000528:radiation effects; D014867:Water / Q000378:metabolism / Q000502:physiology
chemical_list: D046912:Multiprotein Complexes; D014867:Water; D012273:Ribulose-Bisphosphate Carboxylase