Colony growth and evidence for colony multiplication in Phaeocystis pouchetii (Prymnesiophyceae) isolated from mesocosm blooms |
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Authors: | Whipple, Stuart J. Patten, Bernard C. Verity, Peter G. |
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Affiliation: | 1 Skidaway Institute of Oceanography, 10 Ocean Science Circle, Savannah, GA 31411, USA and 2 Institute of Ecology, University of Georgia, Athens, GA 30602, USA Present Address: Institute of Ecology, University of Georgia, Athens, GA 30602, USA |
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Abstract: | Using well plates of Phaeocystis pouchetii colonies isolatedfrom experimental mesocosms in western Norway, increases incolony size and division were documented. Median longest lineardimensions increased 07 µm h1; literaturePhaeocystis globosa values are 0.94.7 µm h1.Ten to twelve percent of colonies divided at rates of 0.210.28divisions day1. Daughter colonies were 100 µm smallerthan mother colonies. Colonies delayed 3.54.9 days tofirst division, compared with literature values of 45days for P. globosa. This study provides the first experimentalevidence for colony division of wild P. pouchetii. |
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