Coccomyxa antarctica Shunan Cao & Qiming Zhou, 2018
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publication ID |
https://dx.doi.org/10.3897/phytokeys.98.25360 |
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persistent identifier |
https://treatment.plazi.org/id/CCBB7576-F978-7833-AFBC-B3C635573EF0 |
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treatment provided by |
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scientific name |
Coccomyxa antarctica Shunan Cao & Qiming Zhou |
| status |
sp. nov. |
Coccomyxa antarctica Shunan Cao & Qiming Zhou sp. nov. Figures 1 View Figure 1 , 2 View Figure 2
Holotype.
Preparation FACHB-2140, Freshwater Algae Culture Collection, the Institute of Hydrobiology (FACHB-Collection) represented here by Figure 1d View Figure 1 .
Type locality.
Antarctic, Fildes Peninsula, on stone (62°12.70'S, 58°55.70'W), 44 m a.s.l., Isolated from the Antarctic lichen Usnea aurantiacoatra (d-B1, BIRDS ID: 2131C0001ASBM100063) on 5th May 2014.
Diagnosis.
The vegetative cells are ovoid to ellipsoidal, asymmetrical, 4-7 µm wide and 8-12 µm long; some cells were sub-sphaeroidal in BBM medium, without mucilaginous sheath. Cell wall smooth, double in ultrastructures. Protoplast with single central cell nucleus, filled with lipid droplets. Chloroplast parietal, with starch granules in interthylacoidal spaces, without pyrenoid. Reproductive cells were not observed. It looks morphologically similar to other Coccomyxa species but differs from other species of Coccomyxa in ITS rDNA (Table 1 View Table 1 & Figure 3a View Figure 3 ) and SSU rDNA (Table 1 View Table 1 , Figure 3b View Figure 3 ).
Habitat.
Epiphytic green alga, living with lichen Usnea aurantiacoatra in harsh environments (Antarctic).
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