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
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Availability of nutrients is known to influence marine primary production; and it is of general interest to see how nutrient limitation mediates phytoplankton responses to solar ultraviolet radiation (UVR, 280-400 nm). The red tide diatom Skeletonema costatum was cultured under nitrate (N)-limited and N-replete conditions and exposed to different solar irradiation treatments with or without UV-A (315-400 nm) and UV-B (280-315 nm) radiation. Its photochemical quantum yield decreased by 13.6% in N-limited cells as compared to that in N-replete ones under photosynthetically active radiation (PAR)-alone treatment, and the presence of UV-A or UV-B decreased the yield further by 2.8 and 3.1%, respectively. The non-photochemical quenching (NPQ), when the cells were exposed to stressful light condition, was higher in N-limited than in N-replete grown cells by 180% under PAR alone, by 204% under PAR + UV-A and by 76% under PAR + UV-A + UV-B treatments. Our results indicate that the N limitation exacerbates the UVR effects on the S. costatum photosynthetic performance and stimulate its NPQ.
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참고문헌 (40)
참고문헌 신청
Agustí, S. / 2007 / Solar radiation-induced mortality of marine pico-phytoplankton in the oligotrophic ocean / Photochem. Photobiol 83:793~801
Barufi, J. B. / 2011 / Effects of N supply on the accumulation of photosynthetic pigments and photoprotectors in Gracilaria tenuistipitata (Rhodophyta) cultured under UV radiation / J. Appl. Phycol 23:457~466
Beardall, J. / 2009 / Interactions between the impacts of ultraviolet radiation, elevated CO2, and nutrient limitation on marine primary producers / Photochem. Photobiol. Sci 8:1257~1265
Beardall, J. / 2001 / Approaches for determining phytoplankton nutrient limitation / Aquat. Sci 63:44~69
Boyd, P. W. / 2010 / Environmental control of open-ocean phytoplankton groups: now and in the future / Limnol. Oceanogr 55:1353~1376
Barufi, J. B. / 2011 / Effects of N supply on the accumulation of photosynthetic pigments and photoprotectors in Gracilaria tenuistipitata (Rhodophyta) cultured under UV radiation / J. Appl. Phycol 23:457~466
Beardall, J. / 2009 / Interactions between the impacts of ultraviolet radiation, elevated CO2, and nutrient limitation on marine primary producers / Photochem. Photobiol. Sci 8:1257~1265
Beardall, J. / 2001 / Approaches for determining phytoplankton nutrient limitation / Aquat. Sci 63:44~69
Boyd, P. W. / 2010 / Environmental control of open-ocean phytoplankton groups: now and in the future / Limnol. Oceanogr 55:1353~1376
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