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(Reference retrieved automatically from Web of Science through information on FAPESP grant and its corresponding number as mentioned in the publication by the authors.)

Type analysis of Achnanthidium minutissimum and A. catenatum and description of A. tropicocatenatum sp nov (Bacillariophyta), a common species in Brazilian reservoirs

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Author(s):
Marquardt, Gisele C. [1] ; Costa, Livia F. [1] ; Bicudo, Denise C. [1] ; Bicudo, Carlos E. de M. [1] ; Blanco, Saul [2, 3] ; Wetzel, Carlos E. [4] ; Ector, Luc [4]
Total Authors: 7
Affiliation:
[1] Inst Bot, Ecol Dept, Av Miguel Estefano 3687, BR-04301012 Sao Paulo, SP - Brazil
[2] Univ Leon, Biodivers & Environm Management Dept, E-24071 Leon - Spain
[3] Inst Environm, La Serna 58, Leon 24007 - Spain
[4] LIST, Environm Res & Innovat Dept ERIN, 41 Rue Brill, L-4422 Belvaux - Luxembourg
Total Affiliations: 4
Document type: Journal article
Source: PLANT ECOLOGY AND EVOLUTION; v. 150, n. 3, p. 313-330, NOV 2017.
Web of Science Citations: 6
Abstract

Background and aims - A commonly occurring Achnanthidium species has been observed in Brazilian reservoirs. The morphological features were described based on light and scanning electron microscope observations and it is described here as A. tropicocatenatum sp. nov. Methods - The new species was compared with the type material of morphologically similar taxa: Achnanthidium catenatum and A. minutissimum. Comparisons with the most related species based on literature were also provided. Traditional weighted-averaging approaches (WA) were applied to model ecological optima. Key results - Morphometric analysis of the valve shape supported the taxa separation; they can be easily differentiated by the morphological and ultrastructural features, including subcapitate to capitate apices, strongly radiate striae and a prominent axial area. This new species has been found in alkaline waters with low electrolyte content. Conclusions - Records of A. catenatum in Brazil are considered questionable because the species may have been confused with A. tropicocatenatum sp. nov. (AU)

FAPESP's process: 13/10314-2 - Comparison of biodiversity and distribution of planktonic diatoms, periphytic and surface sediments in six reservoirs in the southern state of São Paulo
Grantee:Gisele Carolina Marquardt
Support Opportunities: Scholarships in Brazil - Doctorate
FAPESP's process: 09/53898-9 - Paleolimnological reconstruction of Guarapiranga Reservoir and diagnosis of water and sediment current quality of SPMR water supply reservoirs facing their management
Grantee:Carlos Eduardo de Mattos Bicudo
Support Opportunities: Research Projects - Thematic Grants