Suscripción a Biblioteca: Guest
International Journal on Algae

Publicado 4 números por año

ISSN Imprimir: 1521-9429

ISSN En Línea: 1940-4328

SJR: 0.168 SNIP: 0.377 CiteScore™:: 0.6 H-Index: 11

Indexed in

To Morphology, Taxonomy and Distribution of Rare Species of the Genus Sellaphora (Bacillariophyta) in Russia

Volumen 20, Edición 1, 2018, pp. 1-12
DOI: 10.1615/InterJAlgae.v20.i1.10
Get accessGet access

SINOPSIS

New for the region and rare representatives of the genus Sellaphora D.G. Mann are recorded during this electron microscopy study in the phytoplankton of waterbodies and watercourses in the Far North of Western Siberia (Yamal, Tazovsky and Gydan peninsulas): S. difficillima (Hustedt) C.E. Wetzel, L. Ector & D.G. Mann, S. disjuncta (Hustedt) D.G. Mann and S. stauroneioides (Lange-Bertalot) Lange-Bertalot, Kulikovskiy et Witkowski emend. Genkal et Yarushina. This makes it possible to specify the ranges of these species and obtain new data on the frustule morphology of these taxa. The species S. difficillima is found in waterbodies and watercourses of the Tazovsky Peninsula (the Sobetyakha River, a nameless stream), S. disjuncta is recorded from the Yamal Peninsula (the Mordyyakha River basin – Lake Pebtavyto, Lake Pervoe, a nameless channel), and S. stauroneioides is the most widespread (Yamal, Tazovsky and Gydan peninsulas). Since these species are rare, there was little data on their morphology insufficient for accurate identification of these taxa. This scanning electron microscopy study makes it possible to obtain first internal valve views of S. difficillima, S. disjuncta and S. stauroneioides and the raphe structure as well as first data on the number of areolae in 10 μm of a stria in S. disjuncta and S. stauroneioides. It is shown that the ranges of variation in quantitative diagnostic characteristics (valve length and width, number of striae and areolae in 10 μm) in the species under study differ from the first description and published data, which indicates their higher morphological variability. The data obtained on the internal and external valve morphology as well as on the diagnostic quantitative characteristics makes it possible to refine the diagnosis of these taxa and refer S. pseudonana to the synonymy of S. stauroneioides.

CITADO POR
  1. Genkal S.I., Shcherbak V.I., Semenyuk N.Ye., On morphological variability of some species of pennate (Bacillariophyta) from the reservoirs of the Chernobyl nuclear power plant exclusion zone (Ukraine), Algologia, 31, 3, 2021. Crossref

  2. González-Paz Lorena, Gestido Josué, Delgado Cristina, Pedrol Nuria, Pardo Isabel, Short-Term Effect of Eucalyptus Leachates on Green Food Webs in Headwaters, Water, 15, 1, 2022. Crossref

Portal Digitalde Biblioteca Digital eLibros Revistas Referencias y Libros de Ponencias Colecciones Precios y Políticas de Suscripcione Begell House Contáctenos Language English 中文 Русский Português German French Spain