ISTANBUL MEDENIYET UNIVERSITY
Xanthonema sp. ASYA22
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IMU Code: H-18A
Phylum: Ochrophyta
Class: Xanthophyceae
Genus: Xanthonema
Strain:Xanthonema bristollianum
Origin: Horseshoe Island, Antarctica
Locality: Rock cavity
Type Culture:
Isolator: T.Çakmak
Geographical Details : 67°49'48.7"S 67°14'18.6"W
NCBI Accession # : ON782052
General Maintenance Conditions
Temperature: 15 °C/10 °C (D/N)
Light source: mix of warm-white & cool-white fluorescent lamps
Intensity:3200 lux (maximum)
Light period:16/8 h L/D
Media: BBM
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Morphological Features of Species
Xanthonema cells exist as single or few-celled filaments and tend to dissociate easily. The length-width ratio of the cells is (4.5min)6.5(8.4max) x (6.0min) 6.8(7.7max) µm. The cells are barrel-shaped and the cell wall is moderately thickened however, H-pieces are not distinctly present. Chloroplasts surround the entire cell wall and exist in 3-4 pieces (Broady,2019).
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