Results 11 to 20 of about 469 (184)

Euglenophyceae na Área de Proteção Ambiental do Rio Ibirapuitã, sudoeste do Estado do Rio Grande do Sul, Brasil. 1. Cryptoglena Marin & Melkonian emend. Kosmala & Zakrýs, Monomorphina (Ehrenberg) Mereschkowsky emend. Kosmala & Zackýs e Phacus Durjardin [PDF]

Hoehnea, 2009
RESUMO Este trabalho é resultado do estudo taxonômico de três gêneros de Euglenophyceae pigmentadas na Área de Proteção Ambiental do Ibirapuitã, localizada no sudoeste do Bioma Pampa, cujo clima é subtropical.
Sandra Maria Alves-da-Silva, Isabele Corino Klein   +1 more
doaj   +7 more sources

Phacus multifacies sp. nov., a new Euglenophyceae from the State of Rio Grande do Sul, Southern Brazil [PDF]

Hoehnea, 2018
As a result of the taxonomic survey of the pigmented Euglenophyceae of Lago da Ponte, an artificial pond located at the Porto Alegre Botanical Garden, State of Rio Grande do Sul, Southern Brazil and samples gathered later on from this same water body, a ...
Sandra Maria Alves-da-Silva, Carlos Eduardo de Mattos Bicudo   +1 more
doaj   +5 more sources

Ultrastructural alterations in Phacus brachykentron (Euglenophyta) due to excess of organic matter in the culture medium [PDF]

Ecotoxicology and Environmental Safety, 2014
Morphological and ultrastructural changes induced by exposure to excess of organic matter were analyzed in Phacus brachykentron (Pochm.). The cells were isolated from sites in Matanza River, Buenos Aires, Argentina, which have a high degree of organic matter contamination coming from waste waters discharges of the meat industry.
Nannavecchia, Paula Silvia, Tolivia, Analía Alejandra, Conforti, Visitacion Teresa D.   +2 more
core   +10 more sources

Nuclear cytology of Phacus Dujardin.

CYTOLOGIA, 1989
Karyological investigations accomplished on sixteen local isolates of Phacus revealed the structure and pattern of mitotic division of nuclei to be atypical. The chromosome numbers ranged from n=10 in P. cylindrus to n=226±8 in P. longicauda, representing the widest range of chromosome numbers reported so far for euglenoid flagellates.
Prasad, R. N., Chaudhary, B. R.
openaire   +3 more sources

Some new and rare Euglenophyce from the State of São Paulo, southern Brazil Algumas novas e raras Euglenophyceae no Estado de São Paulo, Sul do Brasil

Acta Botânica Brasílica, 1987
Occurrence is reported from the region of the city of São Paulo, southern Brazil, of two euglenoid flagellates (Euglenophyceae). These are very rare, and thus very poorly known members of the class: Scytomonas major (Berliner) Lemmermann and Scytomonas ...
Carlos E. de M Bicudo, Denise de C Bicudo   +1 more
doaj   +2 more sources

Study of Euglenophyta from Camaleao lake (Manaus, Brazil) : 3. Euglena Ehr., Lepocinclis Perty, Phacus Duj.

, 1994
Dans le présent travail, 85 taxons de la classe des Euglenophyta, qui proviennent du lac Camaleao (île Marchantaria, près de Manaus au Brésil), sont étudiés, 20 appartenant au genre #Euglena$ Ehr., 18 au genre #Lepocinclis$ Perty et 47 au genre #Phacus$ Duj. Nous proposons 5 nouvelles espèces : #L. americana$, #L. claviformes$, #P.
Conforti, V.
core   +4 more sources

Ocorrência de Euglenophyceae pigmentadas em rizipiscicultura na Região do Vale do Itajaí, SC, Sul do Brasil Occurrence of pigmented Euglenophyceae in rice-fish fields of the Itajaí River Valley region, Santa Catarina State, southern Brazil

Acta Botânica Brasílica, 2008
O estudo de uma amostra oriunda do cultivo de arroz irrigado (Oriza sativa L.) associado com criação de carpa comum (Cyprinus carpio Linnaeus, 1758), em um ambiente raso (20 m² × 0,30 m de prof.), na Região do Vale do Itajaí, Santa Catarina (26º53'33''S,
Sandra Maria Alves-da-Silva, Márcio da Silva Tamanaha   +1 more
doaj   +2 more sources

Diversity, Community Assemblage, and Environmental Determinants of Phytoplankton in a Subtropical Transboundary Coastal River. [PDF]

Ecol Evol
This study examined spatial and seasonal dynamics of phytoplankton communities in the Dakatia River, identifying 37 genera across six major taxonomic classes, with Bacillariophyceae being the most dominant. Seasonal peaks in phytoplankton abundance and diversity indices indicated higher richness and evenness during winter, while multivariate analyses ...
Faraji MS, Rahman MM, Sarker MM, Hasan MM, Jaman A, Baek HJ, Arai T, Ngah N, Hossain MB.   +8 more
europepmc   +2 more sources

Sustained Heatwaves Reshape the Phytoplankton-Zooplankton Community Structure in Freshwater Ecosystems: A Case Study of Shengjin Lake. [PDF]

Ecol Evol
The sustained heatwave has shaped the plankton community structure and led to high‐temperature domestication of some of the plankton. Plankton communities have the ability to resist heatwave stress. The sustained heatwave has altered the interrelationships between plankton.
Jiang L, Sun M, Zhou Z, Wang Y.
europepmc   +2 more sources

The genus Eutreptiella (Euglenophyceae/Euglenozoa) across its global distribution range. [PDF]

Ecol Evol
The genus Eutreptiella across its global distribution range. Abstract The genus Eutreptiella (Euglenophyceae/Euglenozoa) comprises unicellular organisms known for their photosynthetic capacity and significant role in marine ecosystems. This review highlights the taxonomic, ecological, and biotechnological characteristics of Eutreptiella species ...
Hernández Márquez S, Zamudio-Resendiz ME, Murrieta-Alarcón M, Núñez Resendiz ML, Dreckmann KM, Sentíes A.   +5 more
europepmc   +2 more sources