A new freshwater species Achnanthidium kangdingnese (Bacillariophyta, Achnanthidiaceae) from Sichuan Province, China
A new freshwater diatom species, Achnanthidium kangdingnese Yu, You & Wang, sp. nov. from Sichuan Province, China, is described. The morphology of this species was analyzed with scanning electron microscopy (SEM) and light microscopy (LM). A. kangdingnese belongs to the A. initium-like s...
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| Format: | Article |
| Language: | English |
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Pensoft Publishers
2022-08-01
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| Series: | PhytoKeys |
| Online Access: | https://phytokeys.pensoft.net/article/89690/download/pdf/ |
| _version_ | 1811216004163829760 |
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| author | Pan Yu Qingmin You Yonghong Bi Quanxi Wang |
| author_facet | Pan Yu Qingmin You Yonghong Bi Quanxi Wang |
| author_sort | Pan Yu |
| collection | DOAJ |
| description | A new freshwater diatom species, Achnanthidium kangdingnese Yu, You & Wang, sp. nov. from Sichuan Province, China, is described. The morphology of this species was analyzed with scanning electron microscopy (SEM) and light microscopy (LM). A. kangdingnese belongs to the A. initium-like subgroup, which has external distal raphe ends curved in opposite directions of the valve. The main characteristics of A. kangdingnese are its linear shape, rounded apices and transpically-elongated areolae on the both valves. The central area is well defined with one or two spaced striae of the raphe valve. And on the internal valve, areolae are occluded by hymens perforated by delicate slits, and each hymen is closely joined with the adjacent hymen. We compared the new species with other similar species of Achnanthidium, A. kangdingnese is considered to be sufficiently different from other similar species based on valve outline, shape of the axial and center areas, and striae density. The new species is known only from its type locality, a mountain lake in Kangding County. |
| first_indexed | 2024-04-12T06:32:26Z |
| format | Article |
| id | doaj.art-79da646fe5ad4907a0b5784e76786cde |
| institution | Directory Open Access Journal |
| issn | 1314-2003 |
| language | English |
| last_indexed | 2024-04-12T06:32:26Z |
| publishDate | 2022-08-01 |
| publisher | Pensoft Publishers |
| record_format | Article |
| series | PhytoKeys |
| spelling | doaj.art-79da646fe5ad4907a0b5784e76786cde2022-12-22T03:43:59ZengPensoft PublishersPhytoKeys1314-20032022-08-012049710810.3897/phytokeys.204.8969089690A new freshwater species Achnanthidium kangdingnese (Bacillariophyta, Achnanthidiaceae) from Sichuan Province, ChinaPan Yu0Qingmin You1Yonghong Bi2Quanxi Wang3Institute of Hydrobiology, Chinese Academy of SciencesShanghai Normal UniversityInstitute of Hydrobiology, Chinese Academy of SciencesShanghai Normal UniversityA new freshwater diatom species, Achnanthidium kangdingnese Yu, You & Wang, sp. nov. from Sichuan Province, China, is described. The morphology of this species was analyzed with scanning electron microscopy (SEM) and light microscopy (LM). A. kangdingnese belongs to the A. initium-like subgroup, which has external distal raphe ends curved in opposite directions of the valve. The main characteristics of A. kangdingnese are its linear shape, rounded apices and transpically-elongated areolae on the both valves. The central area is well defined with one or two spaced striae of the raphe valve. And on the internal valve, areolae are occluded by hymens perforated by delicate slits, and each hymen is closely joined with the adjacent hymen. We compared the new species with other similar species of Achnanthidium, A. kangdingnese is considered to be sufficiently different from other similar species based on valve outline, shape of the axial and center areas, and striae density. The new species is known only from its type locality, a mountain lake in Kangding County.https://phytokeys.pensoft.net/article/89690/download/pdf/ |
| spellingShingle | Pan Yu Qingmin You Yonghong Bi Quanxi Wang A new freshwater species Achnanthidium kangdingnese (Bacillariophyta, Achnanthidiaceae) from Sichuan Province, China PhytoKeys |
| title | A new freshwater species Achnanthidium kangdingnese (Bacillariophyta, Achnanthidiaceae) from Sichuan Province, China |
| title_full | A new freshwater species Achnanthidium kangdingnese (Bacillariophyta, Achnanthidiaceae) from Sichuan Province, China |
| title_fullStr | A new freshwater species Achnanthidium kangdingnese (Bacillariophyta, Achnanthidiaceae) from Sichuan Province, China |
| title_full_unstemmed | A new freshwater species Achnanthidium kangdingnese (Bacillariophyta, Achnanthidiaceae) from Sichuan Province, China |
| title_short | A new freshwater species Achnanthidium kangdingnese (Bacillariophyta, Achnanthidiaceae) from Sichuan Province, China |
| title_sort | a new freshwater species achnanthidium kangdingnese bacillariophyta achnanthidiaceae from sichuan province china |
| url | https://phytokeys.pensoft.net/article/89690/download/pdf/ |
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