Upsilococconeis dapalistriata gen. nov. & comb. nov. (Bacillariophyta) – a pantropical marine member of Cocconeidaceae
Cocconeis dapalistriata, first described as a member of the genus Cocconeis, is re-examined due to its unique ultrastructure. Both valvocopulae of this taxon show significant differences compared to those found in the genus Cocconeis. They are expanded and show some similarities with those found in...
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| Format: | Article |
| Language: | English |
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Sciendo
2022-03-01
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| Series: | Oceanological and Hydrobiological Studies |
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| Online Access: | https://doi.org/10.26881/oahs.2022.1.03 |
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| author | Riaux-Gobin Catherine Witkowski Andrzej Risjani Yenny Yunianta Yunianta Berteaux-Lecellier Véronique Kryk Adrian Peszek Łukasz Daniszewska-Kowalczyk Genowefa |
| author_facet | Riaux-Gobin Catherine Witkowski Andrzej Risjani Yenny Yunianta Yunianta Berteaux-Lecellier Véronique Kryk Adrian Peszek Łukasz Daniszewska-Kowalczyk Genowefa |
| author_sort | Riaux-Gobin Catherine |
| collection | DOAJ |
| description | Cocconeis dapalistriata, first described as a member of the genus Cocconeis, is re-examined due to its unique ultrastructure. Both valvocopulae of this taxon show significant differences compared to those found in the genus Cocconeis. They are expanded and show some similarities with those found in Amphicocconeis. On the other hand, terminal parts of the raphe valve (RV) in C. dapalistriata are simple and the raphe valve (RV) striae are composed of small round areolae with a hymenate occlusion with radial slits, similar to those observed in Cocconeis. Campyloneis and Xenococconeis also have expanded valvocopulae but with numerous morphological differences compared to those found in C. dapalistriata. Furthermore, the areolae of the sternum valve (SV) in C. dapalistriata are occluded by a concave velum with no apparent internal slits, and externally ornamented with irregular silica crystals. Upsilococconeis Riaux-Gobin, Witkowski & Risjani gen. nov. is proposed to accommodate the latter taxon. First described from the Western Indian Ocean (Mascarenes), it was subsequently listed from the Western Pacific Ocean (Guam), the South Pacific Ocean (French Polynesia and New Caledonia) and from the Eastern Indian Ocean (Indonesia), and thus may qualify as pantropical. |
| format | Article |
| id | doaj-art-ddbe6e779e8841798236a7549112f608 |
| institution | Kabale University |
| issn | 1897-3191 |
| language | English |
| publishDate | 2022-03-01 |
| publisher | Sciendo |
| record_format | Article |
| series | Oceanological and Hydrobiological Studies |
| spelling | doaj-art-ddbe6e779e8841798236a7549112f6082025-01-20T11:10:24ZengSciendoOceanological and Hydrobiological Studies1897-31912022-03-01511233110.26881/oahs.2022.1.03Upsilococconeis dapalistriata gen. nov. & comb. nov. (Bacillariophyta) – a pantropical marine member of CocconeidaceaeRiaux-Gobin Catherine0Witkowski Andrzej1Risjani Yenny2Yunianta Yunianta3Berteaux-Lecellier Véronique4Kryk Adrian5Peszek Łukasz6Daniszewska-Kowalczyk Genowefa7PSL Research University: CNRS-UPVD-EPHE, USR3278 CRIOBE, FranceUniversity of Szczecin, Institute of Marine and Environmental Sciences, Szczecin, PolandFaculty of Fisheries and Marine Sciences, Brawijaya University, Malang, IndonesiaFaculty of Agricultural Technology, Brawijaya University, Malang, IndonesiaUMR250/9220 ENTROPIE IRD-CNRS-Ifremer-UNC-UR, Labex CORAIL, Nouméa, New Caledonia, FranceUniversity of Szczecin, Institute of Marine and Environmental Sciences, Szczecin, PolandDepartment of Agroecology and Forest Utilization, University of Rzeszów, Rzeszów, PolandUniversity of Szczecin, Institute of Marine and Environmental Sciences, Szczecin, PolandCocconeis dapalistriata, first described as a member of the genus Cocconeis, is re-examined due to its unique ultrastructure. Both valvocopulae of this taxon show significant differences compared to those found in the genus Cocconeis. They are expanded and show some similarities with those found in Amphicocconeis. On the other hand, terminal parts of the raphe valve (RV) in C. dapalistriata are simple and the raphe valve (RV) striae are composed of small round areolae with a hymenate occlusion with radial slits, similar to those observed in Cocconeis. Campyloneis and Xenococconeis also have expanded valvocopulae but with numerous morphological differences compared to those found in C. dapalistriata. Furthermore, the areolae of the sternum valve (SV) in C. dapalistriata are occluded by a concave velum with no apparent internal slits, and externally ornamented with irregular silica crystals. Upsilococconeis Riaux-Gobin, Witkowski & Risjani gen. nov. is proposed to accommodate the latter taxon. First described from the Western Indian Ocean (Mascarenes), it was subsequently listed from the Western Pacific Ocean (Guam), the South Pacific Ocean (French Polynesia and New Caledonia) and from the Eastern Indian Ocean (Indonesia), and thus may qualify as pantropical.https://doi.org/10.26881/oahs.2022.1.03diatomsbenthicpantropicalupsilococconeis gen. nov.upsilococconeis dapalistriata comb. nov |
| spellingShingle | Riaux-Gobin Catherine Witkowski Andrzej Risjani Yenny Yunianta Yunianta Berteaux-Lecellier Véronique Kryk Adrian Peszek Łukasz Daniszewska-Kowalczyk Genowefa Upsilococconeis dapalistriata gen. nov. & comb. nov. (Bacillariophyta) – a pantropical marine member of Cocconeidaceae Oceanological and Hydrobiological Studies diatoms benthic pantropical upsilococconeis gen. nov. upsilococconeis dapalistriata comb. nov |
| title | Upsilococconeis dapalistriata gen. nov. & comb. nov. (Bacillariophyta) – a pantropical marine member of Cocconeidaceae |
| title_full | Upsilococconeis dapalistriata gen. nov. & comb. nov. (Bacillariophyta) – a pantropical marine member of Cocconeidaceae |
| title_fullStr | Upsilococconeis dapalistriata gen. nov. & comb. nov. (Bacillariophyta) – a pantropical marine member of Cocconeidaceae |
| title_full_unstemmed | Upsilococconeis dapalistriata gen. nov. & comb. nov. (Bacillariophyta) – a pantropical marine member of Cocconeidaceae |
| title_short | Upsilococconeis dapalistriata gen. nov. & comb. nov. (Bacillariophyta) – a pantropical marine member of Cocconeidaceae |
| title_sort | upsilococconeis dapalistriata gen nov comb nov bacillariophyta a pantropical marine member of cocconeidaceae |
| topic | diatoms benthic pantropical upsilococconeis gen. nov. upsilococconeis dapalistriata comb. nov |
| url | https://doi.org/10.26881/oahs.2022.1.03 |
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