کد مقاله کد نشریه سال انتشار مقاله انگلیسی نسخه تمام متن
2062082 1544054 2009 11 صفحه PDF دانلود رایگان
عنوان انگلیسی مقاله ISI
Night and Day Morphologies in a Planktonic Dinoflagellate
موضوعات مرتبط
علوم زیستی و بیوفناوری علوم کشاورزی و بیولوژیک علوم کشاورزی و بیولوژیک (عمومی)
پیش نمایش صفحه اول مقاله
Night and Day Morphologies in a Planktonic Dinoflagellate
چکیده انگلیسی

We describe remarkable diurnal changes in the morphology of the planktonic dinoflagellate Ceratium ranipes. The species is distinguished by the unusual appendages, known as toes or fingers, protruding from its horns. Varieties have been described based on the characteristics of the fingers. We discovered that cultures, maintained on a 12:12 photoperiod, when examined during the dark period were composed of ‘finger-less’ cells. Monitoring of isolated cells revealed a diurnal cycle of distinct changes in morphology with daytime cells showing appendages, well-stocked with chlorophyll, and the absence of the fingers at the end of the photoperiod. Fingers are absorbed at the end of the light period and re-grown at the end of the dark period. Sampling the Bay of Villefranche, we found the distinct morphologies in a natural population at night and during the day.

ناشر
Database: Elsevier - ScienceDirect (ساینس دایرکت)
Journal: Protist - Volume 160, Issue 4, November 2009, Pages 565–575
نویسندگان
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