Implications of mycosporine-like amino acid and antioxidant defenses in UV-B radiation tolerance for the algae species Ptercladiella capillacea and Gelidium amansii |
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| Authors: | Tse-Min Lee Chia-Tai Shiu |
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| Institution: | 1. Forest Ecology & Stable Isotope Research Center, College of Forestry, Fujian Agriculture & Forestry University, Fuzhou, 350002, People''s Republic of China;2. College of Life Science, Fujian Agriculture & Forestry University, Fuzhou, 350002, People''s Republic of China;3. College of Natural Resources Management & Tourism, Mwalimu Julius K. Nyerere University of Agriculture & Technology, P.O. Box 976, Musoma, Tanzania;1. Green Processing, Bioremediation and Alternative Energies Research Group, Faculty of Environment and Labour Safety, Ton Duc Thang University, Ho Chi Minh City, Viet Nam;2. Anna University, ACT Campus, Chennai, Tamil Nadu 25, India;3. Department of Biotechnology and Biochemical Engineering, Sree Buddha College of Engineering, APJ Abdul Kalam Kerala Technological University, Kerala, India;4. Corrosion Science and Technology Division (CSTD), Indira Gandhi Centre for Atomic Research, Kalpakkam 603 102, Tamil Nadu, India;5. Research Institute of Biotechnology and Medical Converged Science, Dongguk University-Seoul, Ilsandong-gu, Goyang-si, Gyeonggi-do, 10326, Republic of Korea;1. Department of Biotechnology, Pukyong National University, Busan 608-737, Republic of Korea;2. Biolsystems Co. Ltd., Gwan-ri 430, Doyang-eub, Goheung-gun, Jeonnam, Republic of Korea;1. Collaborative Innovation Center for Marine Biomass Fibers, Materials and Textiles of Shandong Province, Institute of Marine Biobased Materials, School of Environmental Science and Engineering, Qingdao University, Qingdao 266071, PR China;2. Department of Wood Anatomy and Utilization, Research Institute of Wood Industry, Chinese Academy of Forestry, Beijing 100091, PR China;3. State Key Laboratory of Coal Conversion, Institute of Coal Chemistry, Chinese Academy of Science, Taiyuan 030001, PR China;4. College of Chemical and Environmental Engineering, Shandong University of Science and Technology, Qingdao 266590, PR China;5. Queensland Micro- and Nanotechnology Centre (QMNC), Griffith University, Nathan, Brisbane, Queensland 4111, Australia;1. Department of Marine Life Sciences, Jeju National University, Jeju 690-756, Republic of Korea;2. Division of Endocrinology, Diabetes and Metabolism, Beth Israel Deaconess Medical Center and Harvard Medical School, Boston, MA, USA;3. Centro de Estudos de Doenças Crónicas CEDOC, NOVA Medical School/Faculdade de Ciências Médicas, Universidade Nova de Lisboa, Lisbon, Portugal;4. Marine-Integrated Bionics Research Center, Pukyong National University, Busan 608-737, Republic of Korea;5. Department of Biomedical Engineering, and Center for Marine-Integrated Biomedical Technology (BK21 Plus), Pukyong National University, Busan 608-737, Republic of Korea;6. Department of Food Science and Biotechnology, Kunsan National University, Gunsan 573-701, Republic of Korea;7. Tidal Flat Research Center, West Sea Fisheries Research Institute, National Institute of Fisheries Science (NIFS), 11 Seollim-gill, 54014 Gunsan, Republic of Korea;8. School of Marine Biomedical Science, Jeju National University, 102 Jejudaehakno, Jeju 690-756, Republic of Korea;1. Department of Bioenergy Science and Technology, Chonnam National University, Gwangju 500-757, Republic of Korea;2. Bio-Energy Research Center, Chonnam National University, Gwangju 500-757, Republic of Korea;3. Department of Wood Science and Landscape Architecture, Chonnam National University, Gwangju 500-757, Republic of Korea |
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| Abstract: | Ultraviolet-B (UV-B) radiation (0.5, 1.0, 1.5, and 3.0 W m?2) induced higher H2O2 production and lipid peroxidation in alga Gelidium amansii inhabiting in lower subtidal regions than upper subtidal alga Ptercladiella capillacea. Compared to G. amansii, mycosporine-like amino acid (MAA) concentration in P. capillacea was higher and can be increased by 0.5–1.0 W m?2 UV-B, while carotenoid concentration was lower but also increased by 1.5–3.0 W m?2 UV-B. UV-B increased ascorbate concentration, but to a higher degree in P. capillacea. UV-B decreased glutathione concentration, but to a higher degree in G. amansii. UV-B increased ascorbate peroxidase (APX) and glutathione reductase (GR) activities in P. capillacea but decreased them in G. amansii. UV-B increased superoxide dismutase and catalase activities, but to a higher degree in G. amansii. So, G. amansii suffered greater oxidative stress from UV-B radiation. P. capillacea can effectively reduce UV-B sensitivity by increasing sunscreen ability and antioxidant defense capacity. |
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