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A MOLECULAR ANALYSIS OF THE EUGLENOPHYTES USING SSU RDNA
TLDR
Using small subunit (SSU) rDNA data to generate a phylogenetic framework for the genera Euglena, Phacus, Lepocinclis, Astasia, and Khawkinea, the need for a revision in the taxonomy of some of these genera was demonstrated. Expand
PHYLOGENY OF EUGLENOPHYCEAE BASED ON SMALL SUBUNIT rDNA SEQUENCES: TAXONOMIC IMPLICATIONS 1
TLDR
Small subunit rDNA sequences of 42 taxa belonging to 10 genera were used to infer phylogenetic relationships among euglenoids and the strong support for the individual clades confirmed the value of using lorica features as taxonomic criteria. Expand
Effects of chromium on photosynthetic and photoreceptive apparatus of the alga Chlamydomonas reinhardtii.
TLDR
The decomposition of the overall absorption spectra in pigment constituents indicates that Cr(6+) induced a complete pheophinitization of the chrorophylls and a modification of the carotenoids present in the eyespot only when its concentration is equal or greater than 10 microM, indicating that C. reinhardtii could be used as indicator of Cr pollution, but it is not feasible for bioremediation purposes. Expand
Ultrastructure and X-ray microanalysis of Euglena gracilis (Euglenophyta) under chromium stress
TLDR
Results indicate that the different defense mechanisms against chromium depend on strain type and culture conditions, and suggest that sulfur-rich proteins groups play an important role in the detoxification system inducing metal-complex accumulation into vacuoles. Expand
Effect of chromium on the fatty acid composition of two strains of Euglena gracilis.
TLDR
The results indicate that hexavalent chromium affects levels of fatty acids, especially those related to photosynthetic activity, especiallythose related to chloroplast structures. Expand
Gene expression patterns in Euglena gracilis: insights into the cellular response to environmental stress.
TLDR
23 unknown ESTs (U-ESTs) are identified following the expression profiles of these putative stress-related genes suggesting that they could be related to the cellular mechanism of stress response. Expand
Structural changes and dynamics of the phytoplankton along a highly polluted lowland river of Argentina
The phytoplankton of the Matanza-Riachuelo river (Buenos Aires, Argentina) was studied for a period of 15 months together with different physical and chemical variables, along an increasinglyExpand
FINE STRUCTURE AND TAXONOMY OF MONOMORPHINA AENIGMATICA COMB. NOV. (EUGLENOPHYTA) 1
TLDR
Because of the ambiguity surrounding the original descriptions used to diagnose this taxon, an epitype is designated for Monomorphina aenigmatica, which was the presence of a single chloroplast bearing a pyrenoid, capped with a paramylon plate. Expand
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