Temporal progression of photosynthetic-strategy in phytoplankton in the Ross Sea, Antarctica

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• 作者：Thomas J. Ryan-Keogh^a ; ^{Thomas.Ryan-Keogh@uct.ac.za} ; Liza M. DeLizo^b ; ^{delizo@vims.edu} ; Walker O. Smith Jr.^b ; ^wos@vims.edu ; Peter N. Sedwick^c ; ^{psedwick@odu.edu} ; Dennis J. McGillicuddy Jr.^d ; ^{mcgillic@whoi.edu} ; C. Mark Moore^a ; ^{c.moore@noc.soton.ac.uk} ; Thomas S. Bibby^a ; ^{tsb@noc.soton.ac.uk}
• 关键词：Iron ; Phytoplankton ; Photosynthetic proteins ; Photosystem II ; Nutrient limitation ; Ross Sea
• 刊名：Journal of Marine Systems
• 出版年：2017
• 出版时间：February 2017
• 年：2017
• 卷：166
• 期：Complete
• 页码：87-96
• 全文大小：1600 K
• 卷排序：166

文摘

Phytoplankton alter their photosynthetic physiology over the growing season to a strategy requiring less iron. This results in fluorescence yields per chlorophyll and PSII both increasing as the growing season develops. This observation may explain the well characterised progression from Phaeocystis spp. to diatoms over the growing season. It will also have implications for the assessment of primary production from estimates of chlorophyll in this region.