Results 161 to 170 of about 4,369 (186)

Cell Cycle and Nucleomorph Division in Pyrenomonas helgolandii (Cryptophyta)

Protist, 2014
The cells of cryptophycean and chlorarachniophycean algae contain a nucleomorph, a vestigial nucleus derived from red and green algal endosymbionts respectively. The origin of the nucleomorph is therefore different from that of cellular organelles such as mitochondria and chloroplasts. In this study, we sought to determine whether cell cycle regulation
Tomonori, Sato, Chikako, Nagasato, Yoshiaki, Hara, Taizo, Motomura   +3 more
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Toxic effects of detergents on the alga Plagioselmis prolonga (Cryptophyta)

Russian Journal of Marine Biology, 2006
The effect of sodium dodecyl sulfate (SDS) and the household synthetic detergents (HSDs) Kristall and Tix (0.1, 1, and 10 mg/l) on cell motility, cell number dynamics, and the growth rate of the alga Plagioselmis prolonga (Cryptophyta) is studied. Algal cell motility proved to be the most sensitive indicator of detergent toxicity.
N. A. Aizdaicher, Zh. V. Markina
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The four genomes of the alga Pyrenomonas salina (Cryptophyta)

Biosystems, 1992
Cryptomonads are a group of unicellular eukaryotic algae with unusual features. First, their plastids are surrounded by four membranes and second, between the two pairs of membranes there is a plasmatic compartment. This supernumerary eukaryotic compartment of the cryptomonad cell is devoid of mitochondria but contains starch grains, 80S ribosomes and ...
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Nuclear and Nucleomorph SSU rDNA Phylogeny in the Cryptophyta and the Evolution of Cryptophyte Diversity

Journal of Molecular Evolution, 2002
The plastid-bearing members of the Cryptophyta contain two functional eukaryotic genomes of different phylogenetic origin, residing in the nucleus and in the nucleomorph, respectively. These widespread and diverse protists thus offer a unique opportunity to study the coevolution of two different eukaryotic genomes within one group of organisms. In this
Kerstin, Hoef-Emden, Birger, Marin, Michael, Melkonian   +2 more
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The presence of a nucleomorph hsp70 gene is a common feature of Cryptophyta and Chlorarachniophyta

Current Genetics, 1994
Cryptomonad algae and Chlorarachniophyta are evolutionary chimaeras derived from the engulfment of an eukaryotic phototrophic endosymbiont by a eukaryotic host cell. Although much reduced, the endosymbiont's eukaryotic plasmatic compartment still contains a nucleus, the so-called nucleomorph.
Rensing, Stefan A., Goddemeier, M., Hofmann, Claudia J. B., Maier, Uwe G.   +3 more
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Cryptophyta

2010
?????????????????? ???????????????????? ???????????????????????? ???????????????????????????????? ??????????????, ??????????????????????, ???????????????? ?? ?????????????????? ?????????????????? ???????????????????????????? Cryptophyta ???????????????? ?? ??????????????????, ?????????????????????????? ?? ???????????????????????? ????????, ?????????????
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Single-cell Gel/Comet Assay Applied to the Analysis of UV Radiation-induced DNA Damage in Rhodomonas sp. (Cryptophyta)¶

Photochemistry and Photobiology, 2001
The single-cell gel/comet assay is an electrophoretic technique used to detect single-strand breaks in DNA. Damage is assessed examining individual cells under an epifluorescent microscope. UV-induced DNA damage consists mostly of the formation of pyrimidine dimers; therefore, most of the damage cannot be detected using a standard comet assay.
M P, Sastre, M, Vernet, S, Steinert
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Cryptomonad alga Rhodomonas sp. (Cryptophyta, Pyrenomonadaceae) bloom in the redox zone of the basins separating from the White Sea

Microbiology, 2014
Bloom of a cryptomonad alga Rhodomonas sp. (Cryptophyta, Pyrenomonadaceae) was observed in the chemocline of saline basins separating from the White Sea, resulting in red coloration of the relevant water layer. According to the sequence of the 18S nuclear rRNA gene, this species was identical to Rhodomonas sp.RCC2020 (GenBank accession no.
E D, Krasnova, A N, Pantyulin, D N, Matorin, D A, Todorenko, T A, Belevich, I A, Milyutina, D A, Voronov   +6 more
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Phylogenetic Relationships among the Cryptophyta: Analyses of Nuclear-Encoded SSU rRNA Sequences Support the Monophyly of Extant Plastid-Containing Lineages

Protist, 1998
The Cryptophyta comprise photoautotrophic protists with complex plastids which harbor a remnant eukaryotic nucleus (nucleomorph) and a few heterotrophic taxa which either lack a plastid (Goniomonas) or contain a complex plastid devoid of pigments (Ieucoplast; Chilomonas).
B, Marin, M, Klingberg, M, Melkonian
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STRUCTURE AND SIGNIFICANCE OF THE CRYPTOMONAD FLAGELLAR APPARATUS. I.CRYPTOMONAS OVATA(CRYPTOPHYTA)¹

Journal of Phycology, 1984
ABSTRACTThe absolute configuration of the flagellar apparatus inCryptomonas ovatahas been elucidated and found to be similar to that reported forChilomonas paramecium.Variations apparent in the flagellar apparatus ofCryptomonas ovatainclude the presence of striations in the mitochondrion associated lamella, a rhizostyle which does not bear wing‐like ...
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