Diatom growth responses to photoperiod and light are predictable from diel reductant generation

© 2016 The Authors. Journal of Phycology published by Wiley Periodicals, Inc. on behalf of Phycological Society of America.

Bibliographische Detailangaben
Veröffentlicht in:Journal of phycology. - 1966. - 53(2017), 1 vom: 18. Feb., Seite 95-107
1. Verfasser: Li, Gang (VerfasserIn)
Weitere Verfasser: Talmy, David, Campbell, Douglas A
Format: Online-Aufsatz
Sprache:English
Veröffentlicht: 2017
Zugriff auf das übergeordnete Werk:Journal of phycology
Schlagworte:Journal Article Research Support, Non-U.S. Gov't Research Support, U.S. Gov't, Non-P.H.S. RUBISCO Thalassiosira cell size diatom electron transport growth photoperiod mehr... photosystem II Carbon 7440-44-0
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245 1 0 |a Diatom growth responses to photoperiod and light are predictable from diel reductant generation 
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500 |a Date Completed 30.01.2018 
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500 |a Citation Status MEDLINE 
520 |a © 2016 The Authors. Journal of Phycology published by Wiley Periodicals, Inc. on behalf of Phycological Society of America. 
520 |a Light drives phytoplankton productivity, so phytoplankton must exploit variable intensities and durations of light exposure, depending upon season, latitude, and depth. We analyzed the growth, photophysiology and composition of small, Thalassiosira pseudonana, and large, Thalassiosira punctigera, centric diatoms from temperate, coastal marine habitats, responding to a matrix of photoperiods and growth light intensities. T. pseudonana showed fastest growth rates under long photoperiods and low to moderate light intensities, while the larger T. punctigera showed fastest growth rates under short photoperiods and higher light intensities. Photosystem II function and content responded primarily to instantaneous growth light intensities during the photoperiod, while diel carbon fixation and RUBISCO content responded more to photoperiod duration than to instantaneous light intensity. Changing photoperiods caused species-specific changes in the responses of photochemical yield (e- /photon) to growth light intensity. These photophysiological variables showed complex responses to photoperiod and to growth light intensity. Growth rate also showed complex responses to photoperiod and growth light intensity. But these complex responses resolved into a close relation between growth rate and the cumulative daily generation of reductant, across the matrix of photoperiods and light intensities 
650 4 |a Journal Article 
650 4 |a Research Support, Non-U.S. Gov't 
650 4 |a Research Support, U.S. Gov't, Non-P.H.S. 
650 4 |a RUBISCO 
650 4 |a Thalassiosira 
650 4 |a cell size 
650 4 |a diatom 
650 4 |a electron transport 
650 4 |a growth 
650 4 |a photoperiod 
650 4 |a photosystem II 
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700 1 |a Talmy, David  |e verfasserin  |4 aut 
700 1 |a Campbell, Douglas A  |e verfasserin  |4 aut 
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