Seasonal Fluctuation of DNA Photodamage in Marine Plankton Assemblages at Palmer Station, Antarctica¶
2002; Wiley; Volume: 75; Issue: 3 Linguagem: Inglês
10.1562/0031-8655(2002)075 2.0.co;2
ISSN1751-1097
AutoresJarah A. Meador, Wade H. Jeffrey, Jason P. Kase, J. Dean Pakulski, Stephanie Chiarello, David L. Mitchell,
Tópico(s)Marine and coastal ecosystems
ResumoPhotochemistry and PhotobiologyVolume 75, Issue 3 p. 266-271 Seasonal Fluctuation of DNA Photodamage in Marine Plankton Assemblages at Palmer Station, Antarctica¶ Jarah Meador, Jarah Meador Department of Carcinogenesis, The University of Texas M.D. Anderson Cancer Center, Smithville, TXSearch for more papers by this authorWade H. Jeffrey, Wade H. Jeffrey Center for Environmental Diagnostics and Bioremediation, University of West Florida, Pensacola, FLSearch for more papers by this authorJason P. Kase, Jason P. Kase Center for Environmental Diagnostics and Bioremediation, University of West Florida, Pensacola, FLSearch for more papers by this authorJ. Dean Pakulski, J. Dean Pakulski Center for Environmental Diagnostics and Bioremediation, University of West Florida, Pensacola, FLSearch for more papers by this authorStephanie Chiarello, Stephanie Chiarello Department of Carcinogenesis, The University of Texas M.D. Anderson Cancer Center, Smithville, TXSearch for more papers by this authorDavid L. Mitchell, Corresponding Author David L. Mitchell Department of Carcinogenesis, The University of Texas M.D. Anderson Cancer Center, Smithville, TX*To whom correspondence should be addressed at: Department of Carcinogenesis, The University of Texas M.D. Anderson Cancer Center, Science Park/Research Division, Smithville, TX 78957, USA. Fax: 512-237-2437; [email protected]Search for more papers by this author Jarah Meador, Jarah Meador Department of Carcinogenesis, The University of Texas M.D. Anderson Cancer Center, Smithville, TXSearch for more papers by this authorWade H. Jeffrey, Wade H. Jeffrey Center for Environmental Diagnostics and Bioremediation, University of West Florida, Pensacola, FLSearch for more papers by this authorJason P. Kase, Jason P. Kase Center for Environmental Diagnostics and Bioremediation, University of West Florida, Pensacola, FLSearch for more papers by this authorJ. Dean Pakulski, J. Dean Pakulski Center for Environmental Diagnostics and Bioremediation, University of West Florida, Pensacola, FLSearch for more papers by this authorStephanie Chiarello, Stephanie Chiarello Department of Carcinogenesis, The University of Texas M.D. Anderson Cancer Center, Smithville, TXSearch for more papers by this authorDavid L. Mitchell, Corresponding Author David L. Mitchell Department of Carcinogenesis, The University of Texas M.D. Anderson Cancer Center, Smithville, TX*To whom correspondence should be addressed at: Department of Carcinogenesis, The University of Texas M.D. Anderson Cancer Center, Science Park/Research Division, Smithville, TX 78957, USA. Fax: 512-237-2437; [email protected]Search for more papers by this author First published: 01 May 2007 https://doi.org/10.1562/0031-8655(2002)0750266SFODPI2.0.CO2Citations: 6 ¶ Posted on the website on January 8, 2002. Read the full textAboutPDF ToolsRequest permissionExport citationAdd to favoritesTrack citation ShareShare Give accessShare full text accessShare full-text accessPlease review our Terms and Conditions of Use and check box below to share full-text version of article.I have read and accept the Wiley Online Library Terms and Conditions of UseShareable LinkUse the link below to share a full-text version of this article with your friends and colleagues. Learn more.Copy URL Share a linkShare onEmailFacebookTwitterLinkedInRedditWechat ABSTRACT Ultraviolet radiation–induced DNA damage frequencies were measured in DNA dosimeters and natural plankton communities during the austral spring at Palmer Station, Antarctica, during the 1999–2000 field season. We found that the fluence of solar ultraviolet-B radiation (UV-B) at the earth's surface correlated with stratospheric ozone concentrations, with significant ozone depletion observed because of "ozone hole" conditions. To verify the interdependence of ozone depletion and DNA damage in natural microbial communities, seawater was collected daily or weekly from Arthur Harbor at Palmer Station, Antarctica, throughout "ozone season," exposed to ambient sunlight between 0600 and 1800 h and fractionated using membrane filtration to separate phytoplankton and bacterioplankton populations. DNA from these fractions was isolated and DNA damage measured using radioimmunoassay. Under low-ozone conditions cyclobutane dimer concentrations in bacterioplankton and phytoplankton communities were maximal. DNA damage measured in dosimeters correlated closely with ozone concentrations and UV-B fluence. 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