Results 51 to 60 of about 430 (170)

Flutuação anual e interanual da riqueza de espécies de desmídias (Chlorophyta – Conjugatophyceae) em um lago de inundação amazônico de águas pretas (Lago Cutiuaú, Estado do Amazonas, Brasil) = Annual and interannual fluctuation of desmids species in a black water Amazon floodplain lake (Lago Cutiuaú, Amazonas State, Brazil)

Acta Scientiarum: Biological Sciences, 2009
Nesta pesquisa foi avaliada a flutuação sazonal e interanual da riqueza específica de desmídias ao longo de diferentes períodos do ciclo hidrológico de 2002 a 2004, em um lago de inundação de águas pretas da bacia do rio Negro, no Estado do Amazonas.
Sergio Melo, Karla Ferreira de Souza
doaj  

Molecular evolution of glutamine synthetase II: Phylogenetic evidence of a non-endosymbiotic gene transfer event early in plant evolution

BMC Evolutionary Biology, 2010
Background Glutamine synthetase (GS) is essential for ammonium assimilation and the biosynthesis of glutamine. The three GS gene families (GSI, GSII, and GSIII) are represented in both prokaryotic and eukaryotic organisms.
Tartar Aurélien, Binder Manfred, Ghoshroy Sohini, Robertson Deborah L   +3 more
doaj   +1 more source

FIGURES 19, 20 in Taxonomic notes on Dutch desmids V (Streptophyta, Desmidiales): new species, new morphological features

, 2013
FIGURES 19, 20: LM images of Euastrum pseudotuddalense in frontal and apical view, respectively. FIGURE 21: LM picture of Sphaerozosma vertebratum, courtesy H. Schulp. FIGURES 22–24: LM pictures of SphaerozosmaPublished as part of Coesel, Peter & Westen,
Coesel, Peter, Westen, Marien Van
core   +1 more source

Nouvelle contribution à l'étude des algues d'eau douce de la partie amazonienne de la Bolivie : 2ème partie : Desmidiales [PDF]

, 1986
Dans cette deuxième partie, nous donnons une liste complémentaire de Desmidiales trouvées dans neuf récoltes effectuées dans la région de la ville de Trinidad située dans la partie amazonienne de la Bolivie (Province du Beni).
Thérézien, Y.
core  

FIGURES 22–29. 22, 23. Staurastrum echinatum. 24, 25 in Taxonomic notes on Dutch desmids VI (Streptophyta, Desmidiales): new species, newly described zygospores

, 2014
FIGURES 22–29. 22, 23. Staurastrum echinatum. 24, 25. Zygospore of Staurastrum echinatum. 26. Staurastrum brachiatoides. 27. Zygospore of Staurastrum brachiatoides. 28. Staurastrum brachiatum. 29. Zygospore of Staurastrum brachiatum.
Westen, Marien Van, Coesel, Peter
core   +1 more source

Note sur quelques Micrasterias Ag. du Cameroun (Chlorophyta, Zygophyceae, Desmidiales)

Cryptogamie. Algologie, 1985
(Uploaded by Plazi from the Biodiversity Heritage Library) No abstract provided.
Atangana Etémé, R, Couté, Alain
openaire   +2 more sources

FIGURES 1–4 in Taxonomic notes on Dutch desmids V (Streptophyta, Desmidiales): new species, new morphological features

, 2013
FIGURES 1–4: Closterium pronum. Fig. 1: vegetative cell. Fig. 2–4: three successive stages of zygospore formation (Fig. 4: mature zygospore in frontal and apical view). FIGURES 5–8: Closterium pygmaeum. FIGURES 9, 10: Euastrum pseudotuddalense.
Coesel, Peter, Westen, Marien Van
core   +1 more source

Desmidiales (Desmidiaceae, Zygnematophyceae) from Lowland Rivers and Floodplain Lakes of Ecuadorian Amazonia

Cryptogamie, Algologie
SÁNCHEZ, Luzmila, SÁNCHEZ, Fernando R., RÍOS-TOUMA, Blanca, José V. MONTOYA (2025): Desmidiales (Desmidiaceae, Zygnematophyceae) from lowland rivers and floodplain lakes of Ecuadorian Amazonia. Cryptogamie, Algologie 46 (3): 31-60, DOI: 10.5252/cryptogamie-algologie2025v46a3, URL: https://sciencepress.mnhn.fr/sites/default/files/articles/pdf ...
SÁNCHEZ, Luzmila, SÁNCHEZ, Fernando R., RÍOS-TOUMA, Blanca, José V. MONTOYA   +3 more
openaire   +1 more source

FIGURES 8–12. 8 in Taxonomic notes on Dutch desmids VI (Streptophyta, Desmidiales): new species, newly described zygospores

, 2014
FIGURES 8–12. 8. Staurastrum quadriradiatum, cell in frontal and apical view. 9. Staurastrum quadriradiatum cell in so-called position 1. 10. Staurastrum quadriradiatum cell in position 2, only two of the four processes are shown. 11.
Westen, Marien Van, Coesel, Peter
core   +1 more source

Phenotypic plasticity and morphogenesis of desmids (Desmidiales, Zygnematophyceae) [PDF]

Desmids are green streptophyte algae classified in the order of Desmidiales. The cells of desmids are notable for the presence of mirror-symmetrical ornamented semicells connected by a plasmatic bridge, the isthmus.
Figallová, Klára
core   +1 more source