Effects of Temperature on the Germination of Marine Phytoflagellate Cysts

Authors

  • Shettapong Meksumpun Department of Marine Science, Faculty of Fisheries, Kasetsart University, Bangkok 10900, Thailand.
  • Charumas Meksumpun Department of Fishery Biology, Faculty of Fisheries, Kasetsart University, Bangkok 10900, Thailand.
  • Shigeru Montani Faculty of Fishery, Hokkaido University, Sapporo 060-8589, Japan.

Keywords:

Chattonella spp., cyst germination, phytoflagellate, Protoperidinium pellucidum, temperature

Abstract

The effect of temperature on the germination of some phytoflagellate cysts was studied in two different temperature conditions, step-gradient temperature and constant temperature. The highest number of newly germinated cell of Scrippsiella spp., Alexandrium spp., Protoperidinium spp., Gyrodinium spp., Gymnodinium spp., and Diplopelta spp. was observed after incubation 2 or 3 days when the initial temperatures were 13 and/or 19 oC, but it took at least 5 days at the initial incubation temperature of 10 oC. The germination rates of phytoflagellate cyst under optimum window should be faster than the other temperature ranges. The optimum temperature for cyst germination of Alexandrium spp., Protoperidinium pellucidum Bergh and Protoperidinium spp. was considered to be at 16 oC. For Scrippsiella spp., Gymnodinium spp. (small) and Gymnodinium spp., the optimum temperature for their cyst germination was considered to be 13 oC, whereas that for Chattonella spp. could be as high as 25 oC.

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Published

2005-03-31

How to Cite

Shettapong Meksumpun, Charumas Meksumpun, and Shigeru Montani. 2005. “Effects of Temperature on the Germination of Marine Phytoflagellate Cysts”. Agriculture and Natural Resources 39 (1). Bangkok, Thailand:149-58. https://li01.tci-thaijo.org/index.php/anres/article/view/243295.

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Section

Research Article