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Ultrastructure of three Species of Entomoneis (Bacillariophyta) from Lake Qinghai of China, with reference to the external areola occlusions.
Long, Ji-Yan; Williams, David M; Liu, Bing; Mo, Wen-Hui; Quan, Si-Jin.
Afiliación
  • Long JY; College of Biology and Environmental Sciences, Jishou University, Jishou 416000, China Jishou University Jishou China.
  • Williams DM; Department of Life Sciences, the Natural History Museum, Cromwell Road, London SW7 5BD, UK Department of Life Sciences, The Natural History Museum London United Kingdom.
  • Liu B; College of Biology and Environmental Sciences, Jishou University, Jishou 416000, China Jishou University Jishou China.
  • Mo WH; College of Biology and Environmental Sciences, Jishou University, Jishou 416000, China Jishou University Jishou China.
  • Quan SJ; College of Biology and Environmental Sciences, Jishou University, Jishou 416000, China Jishou University Jishou China.
PhytoKeys ; 189: 29-50, 2022.
Article en En | MEDLINE | ID: mdl-35115880
Three sympatric Entomoneis species, found at the same specific locality in Lake Qinghai, China, are studied by using light and scanning electron microscope. Two species are proposed as new to science and named as E.sinensis sp. nov. and E.qinghainensis sp. nov. The third species is identified as E.paludosa (W. Smith) Reimer. Entomoneissinensis has a linear-lanceolate valve outline and Ƨ-shaped keel, bears two distinct 8-shaped loops formed by the valvocopula pars media in each cell and each of its stria is composed of either a long hymen strip or a long hymen strip plus one separated areola close to the raphe. Its hymen strip belongs to Type Two, which is a siliceous membrane strip perforated by two rows of linear pores next to transapical costae and two rows of rounded pores between these two rows of linear pores. Entomoneisqinghainensis has large cells, very high keel and evident hymen strip regions like a U-shaped neck pillow at the middle of valve face. Its hymen strip belongs to Type One, which is a siliceous membrane strip perforated by irregularly distributed round pores. Entomoneispaludosa also has the hymen strip regions that are worm-like and close to the raphe canal. Its hymen strip is same as that of E.qinghainensis. The two kinds of the outside areola occlusions in Entomoneis are compared, summarised and discussed.
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Texto completo: 1 Colección: 01-internacional Base de datos: MEDLINE Idioma: En Revista: PhytoKeys Año: 2022 Tipo del documento: Article

Texto completo: 1 Colección: 01-internacional Base de datos: MEDLINE Idioma: En Revista: PhytoKeys Año: 2022 Tipo del documento: Article
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