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Thoracosphaera heimii CCCM 670 (=CCMP 1069)


Principle Investigator(s) Juan Saldarriaga
External sample IDThorheim
Sample accession numberCAM_SMPL_002472
Assembly accession numberCAM_ASM_000290
Combined Assembly NameN/A
StrainCCCM 670 (=CCMP 1069)
Prelim. NCBI Taxon ID2923
18S rRNA
Importance of organism and transcriptomesThe main growing stage of Thoracosphaera heimii is its encysted form, not the flagellated stage that is typical for dinoflagellates. The cyst of Thoracosphaera contains a calcium carbonate layer, and nothing is known about the genetic mechanisms that govern either the deposition of this substance in the cyst of the cell, or more importantly, the control of cell cycle life stages of dinoflagellates (flagellate cells vs. cysts, be they sexual or not). Taxonomically speaking Thoracosphaera is important because it is the only typical member of the Peridiniales that is included in our proposal (Heterocapsa is nominally also a peridinialean, but it is certainly not a typical one).
Additional citations and referencesMeier, K.J.S., Young, J.R., Kirsch, M. & Feist-Burkhardt, S. (2007). Evolution of different life-cycle strategies in oceanic calcareous dinoflagellates. European Journal of Phycology 42: 81-89.
Environmental Data
Primary citation for organism's characterization, if availableInouye, I. & Pienaar, R.N. (1983). Observations on the life cycle and microanatomy of Thoracosphaera heimii (Dinophyceae) with special refeence to its systematic position. S.-Afr. Tydskr. Plantk. 2: 63-75.
Collection date23-APR-80
Sample collection siteGulf of Mexico
Sample material (e.g. "seawater," "sediment," etc.)seawater
Habitatmarine habitat
Experimental Data
Date of experiment02-JUN-11
Growth mediumHESNW
Modifications to growth mediumno silica
Temperature (ºC)23
Salinty (psu)30
Light (µmol photons / m2 / sec)3800
Day portion of day:night cycle in hours14
Night portion of day:night cycle in hours10
Nitrate (μmol/L)3
Ammonium (μmol/L).11
Phosphate (μmol/L).3
Investigation typeEukaryotes