A triangular Eunotia (Bacillariophyceae) in southeastern Brazil: Eunotia trigona sp. nov.

Fuhrmann, André; Metzeltin, Ditmar; Tremarin, Priscila Izabel

doi:10.1590/s0102-33062013000400007

Cited by 4 publications

(2 citation statements)

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“…New occurrences and, more noticeably, the description of new taxa of microalgae were also a result of the increase in collection efforts, particularly the work regarding diatoms and cyanobacteria carried out by Wetzel et al (2012a, b), Gama Jr. et al (2012, Burliga et al (2013), Caires et al (2013), Santos et al (2013) and Tremarin et al (2013).…”

Section: In the Catálogo De Plantas E Fungos Do Brasilmentioning

confidence: 99%

Update of the Brazilian floristic list of Algae and Cyanobacteria

Menezes¹,

Bicudo²,

Moura³

et al. 2015

Rodriguésia

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An updated synthesis of cyanobacteria and algae information is presented for Brazil aiming to refine the data gathered to date and evaluate the progress of the biodiversity knowledge about these organisms in the country since the publication of the Catálogo de Plantas e Fungos do Brasil. The results of 2015 showed an increase of 1,250 species (35.7%) when compared to 2010, reaching a total of 4,747 species. The most diverse classes in species number were the Bacillariophyceae, Conjugatophyceae, Florideophyceae, Cyanophyceae, Dinophyceae and Euglenophyceae. Bacillariophyceae and Cyanophyceae had the highest increase in species number in the five-year interval. The Southeast and South regions were the most diverse, however, the Northeast, with the states of Piauí and Sergipe, and the Central-west region, with Mato Grosso, Goiás and Distrito Federal, also stood out in the national algal biodiversity scenario. Despite the shortage of taxonomists and limited infrastructure, the results showed a significant improvement in the knowledge regarding the diversity of cyanobacteria and algae in the country during the study period, starting to even out regional geographical differences caused by subsampling. Key words: Biodiversity, phycology. ResumoApresenta-se uma síntese atualizada de informações sobre algas no Brasil objetivando refinar os dados reunidos até o presente, bem como avaliar os avanços sobre o conhecimento da diversidade de algas no país desde a publicação do Catálogo de Plantas e Fungos do Brasil. Os resultados de 2015 mostraram um acréscimo de 1.250 espécies (35.7%) a um total de 4.747 em relação a 2010. As classes mais diversas em número de espécies foram Bacillariophyceae, Conjugatophyceae, Florideophyceae, Cyanophyceae, Dinophyceae e Euglenophyceae. Bacillariophyceae e Cyanophyceae tiveram o maior acréscimo de espécies no intervalo de cinco anos. A região Sudeste e Sul foram as mais diversas, porém, as regiões Nordeste com os estados do Piauí e Sergipe e Centro-Oeste com os estados de Mato Grosso, Goiás e Distrito Federal destacaram--se no cenário da biodiversidade nacional. Apesar da escassez de taxonomistas e da infraestrutura limitada, os resultados obtidos evidenciaram um avanço significativo no conhecimento da diversidade de algas no país nesse período de cinco anos, iniciando uma mudança quanto as diferenças geográficas regionais. Palavras-chave: Biodiversidade, ficologia.

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Section: In the Catálogo De Plantas E Fungos Do Brasilmentioning

confidence: 99%

Update of the Brazilian floristic list of Algae and Cyanobacteria

Menezes¹,

Bicudo²,

Moura³

et al. 2015

Rodriguésia

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“…With regard to Eunotia, there are about 245 taxa identified to Brazilian environments (Metzeltin & Lange-Bertalot 1998, 2007, Torgan et al 1999, Ferrari et al 2007, Tremarin et al 2008, Bicca & Torgan 2009, Bicca et al 2011, Burliga & Kociolek 2012, of which 81 taxa were proposed as new to science (e.g. Torgan & Becker 1997, Burliga et al 2007, Wetzel et al 2010, Metzeltin & Tremarin 2011, Burliga & Kociolek 2012, Fuhrmann et al 2013.…”

Section: Introductionmentioning

confidence: 99%

Epiphytic Eunotia (Bacillariophyceae) on Podostemum from Santa Catarina, southern Brazil, including new observations on morphology and taxonomy of some rare recorded species

et al. 2014

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) on Podostemum from Santa Catarina, southern Brazil, including new observations on morphology and taxonomy of some rare recorded species.http://dx.doi.org/10.1590/1676-06032014003414Abstract: Eunotia is a highly diverse diatom genus in the Neotropics. Considerable morphological variability of the valve showed in several species of the genus resulted in a quite confused taxonomy. Twelve Eunotia taxa attached to Podostemum spp. were investigated using the light microscopy (LM). Additionally, scanning electron microscopy (SEM) was used in order to investigate the fine morphology of most abundant taxa. Samples were collected from four rivers from the State of Santa Catarina between March 2009 and July 2010. The freshwater diatom flora from this south Brazilian state is poorly known in relation to its neighboring states. Eunotia biseriatoides has intermediate features between Eunotia and Perinotia, and the circumscription of these genera is discussed here. Eunotia odebrechtiana is very similar in morphology to E. biseriatoides, and the synonymy is proposed, as well as the transfer of the variety E. odebrechtiana var. essequiboensis to the species E. biseriatoides. The fine structure of E. epithemioides is showed for the first time in SEM, revealing the unusual position of the rimoportula in this genus. A new variety, E. pseudosudetica var. rotundata var. nov., was proposed and compared with the typical one.Except by E. veneris, all other eleven taxa presented here are new records for the State of Santa Catarina, Brazil. Keywords: Diatom, Eunotiaceae, lotic systems, periphyton, taxonomy.CAVALCANTE, K.P., TREMARIN, P.I., CASTRO, E.C., TIBIRIÇ Á , C.E.J.A., WOJCIECHOWSKI, J., LUDWIG, T.A.V. Eunotia (Bacillariophyceae) epífitas sobre Podostemum em Santa Catarina, sul do Brasil, incluindo novas observações sobre a morfologia e taxonomia de espécies raramente registradas. Biota http://dx.doi.org/10.1590/1676-06032014003414Resumo: Eunotia é um gênero de diatomá ceas altamente diverso na regiã o neotropical. A considerá vel variabilidade morfoló gica encontrada nas valvas de vá rias espécies deste gênero resultam em uma taxonomia muito confusa. Neste estudo, 12 tá xons de Eunotia aderidos a Podostemum spp. foram investigados usando microscopia ó ptica (MO). Adicionalmente, microscopia eletrô nica de varredura (MEV) foi utilizada para investigar a morfologia ultraestrutural de tá xons mais abundantes. Amostras foram coletadas em quatro rios do Estado de Santa Catarina entre março de 2009 e julho de 2010. A diatomofló rula deste estado é pobremente conhecida em relaçã o aos estados vizinhos no sul do país. Eunotia biseriatoides é um taxon com características intermediá rias entre Eunotia e Perinotia e a circunscriçã o destes gêneros é discutida aqui. Eunotia odebrechtiana é muito similar morfologicamente a E. biseriatoides e a sinonimização é proposta, bem como a transferência da variedade E. odebrechtiana var. essequiboensis à espécie E. biseriatoides. A ultraestrutura de E. epithemioides é apresentada pela primeira vez em M...

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Taxonomy and distribution of the genus Eunotia Ehrenberg in aquatic ecosystems of Vietnam

Glushchenko

Kulikovskiy

2017

Inland Water Biol

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A triangular Eunotia (Bacillariophyceae) in southeastern Brazil: Eunotia trigona sp. nov.

Cited by 4 publications

References 11 publications

Update of the Brazilian floristic list of Algae and Cyanobacteria

Update of the Brazilian floristic list of Algae and Cyanobacteria

Epiphytic Eunotia (Bacillariophyceae) on Podostemum from Santa Catarina, southern Brazil, including new observations on morphology and taxonomy of some rare recorded species

Taxonomy and distribution of the genus Eunotia Ehrenberg in aquatic ecosystems of Vietnam

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