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Hoffmann, R. A wiki for the life sciences where authorship matters. Nature Genetics (2008)
 
MeSH Review

Cryptophyta

 
 
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Disease relevance of Cryptophyta

 

High impact information on Cryptophyta

  • Nucleotide sequence of the genes for ribosomal protein S4 and tRNA(Arg) from the chlorophyll c-containing alga Cryptomonas phi [3].
  • Two cDNA sequences from G. theta and one from Cryptomonas encoding proteins homologous to type 1 opsins were identified [4].
  • A second rhodopsin from G. theta (GtR2) and the one from Cryptomonas have noncarboxylated residues at the donor position as in known sensory rhodopsins [4].
  • To increase the database of protein-coding genes we sequenced the cytosolic form of heat-shock protein Hsp90 from a broad variety of previously unsampled eukaryote groups: protozoan flagellates (phyla Choanozoa, Apusozoa, Cercozoa) and all three groups of chromists (Cryptophyta, Heterokonta, Haptophyta) [5].
  • Here we characterized cDNAs of the nuclear genes encoding chloroplast and cytosolic glyceraldehyde-3-phosphate dehydrogenases (GAPDH) from the two cryptomonads Pyrenomonas salina and Guillardia theta [6].
 

Biological context of Cryptophyta

  • The katablepharids are a distant sister group of the Cryptophyta: A proposal for Katablepharidophyta divisio nova/ Kathablepharida phylum novum based on SSU rDNA and beta-tubulin phylogeny [7].
 

Associations of Cryptophyta with chemical compounds

 

Gene context of Cryptophyta

  • We therefore conclude that the katablepharids should be a group equivalent to the Cryptophyta and propose Katablepharidophyta divisio nova (ICBN)/Kathablepharida phylum novum (ICZN) [7].
  • The presence of a nucleomorph hsp70 gene is a common feature of Cryptophyta and Chlorarachniophyta [11].
  • By comparison, ferredoxin levels varied only slightly in cells of Cryptomonas sp. provided either 100 nM or 1 000 nM Fe [12].

References

  1. Structural genes for Mg-chelatase subunits in barley: Xantha-f, -g and -h. Jensen, P.E., Willows, R.D., Petersen, B.L., Vothknecht, U.C., Stummann, B.M., Kannangara, C.G., von Wettstein, D., Henningsen, K.W. Mol. Gen. Genet. (1996) [Pubmed]
  2. Unusual organization of a ribosomal protein operon in the plastid genome of Cryptomonas phi: evolutionary considerations. Douglas, S.E. Curr. Genet. (1991) [Pubmed]
  3. Nucleotide sequence of the genes for ribosomal protein S4 and tRNA(Arg) from the chlorophyll c-containing alga Cryptomonas phi. Douglas, S.E., Durnford, D.G. Nucleic Acids Res. (1990) [Pubmed]
  4. Rhodopsin-mediated photoreception in cryptophyte flagellates. Sineshchekov, O.A., Govorunova, E.G., Jung, K.H., Zauner, S., Maier, U.G., Spudich, J.L. Biophys. J. (2005) [Pubmed]
  5. Phylogenetic analysis of eukaryotes using heat-shock protein Hsp90. Stechmann, A., Cavalier-Smith, T. J. Mol. Evol. (2003) [Pubmed]
  6. Evolutionary origin of cryptomonad microalgae: two novel chloroplast/cytosol-specific GAPDH genes as potential markers of ancestral endosymbiont and host cell components. Liaud, M.F., Brandt, U., Scherzinger, M., Cerff, R. J. Mol. Evol. (1997) [Pubmed]
  7. The katablepharids are a distant sister group of the Cryptophyta: A proposal for Katablepharidophyta divisio nova/ Kathablepharida phylum novum based on SSU rDNA and beta-tubulin phylogeny. Okamoto, N., Inouye, I. Protist (2005) [Pubmed]
  8. The small subunit of ribulose-1,5-bisphosphate carboxylase is plastid-encoded in the chlorophyll c-containing alga Cryptomonas phi. Douglas, S.E., Durnford, D.G. Plant Mol. Biol. (1989) [Pubmed]
  9. A comparison of the periodic substructure of the trichocysts of the Cryptophyceae and Prasinophyceae. Morrall, S., Greenwood, A.D. BioSystems (1980) [Pubmed]
  10. Lipophilic pigments from the benthos of a perennially ice-covered Antarctic lake. Palmisano, A.C., Wharton, R.A., Cronin, S.E., Des Marais, D.J. Hydrobiologia (1989) [Pubmed]
  11. The presence of a nucleomorph hsp70 gene is a common feature of Cryptophyta and Chlorarachniophyta. Rensing, S.A., Goddemeier, M., Hofmann, C.J., Maier, U.G. Curr. Genet. (1994) [Pubmed]
  12. Physiological and biochemical response of freshwater cryptomonads (Cryptophyceae) to Fe deficiency. Li, X., Xiaoming, Q., McKay, R.M. J. Basic Microbiol. (2003) [Pubmed]
 
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