We have determined the nucleotide sequence of part of a cloned ribosomal transcription unit from Xenopus laevis extending from the 3' region of the 18S gene through the 18S-28S intergene region into the start of the 28S gene. The 18S 3' region possess two tracts of high homology with the corresponding segments of other eukaryotic 18S genes (yeast and Bombyx mori) separated by a tract of low hom...

A pectinase producing fungus was isolated from compost soil. Morphological characteristics, microscopic observations and molecular characterization based on internal transcribed spacer (ITS) sequences led to its identification as Aspergillus niger (GenBank Accession Number: JX556221) and it was designated as Aspergillus niger strain K3. In the present study, the culture condition of the media w...

The internal transcribed spacer (ITS) region of the nuclear ribosomal repeat unit is the most popular locus for species identi cation and subgeneric phylogenetic inference in sequence-based mycological research. The region is known to show certain variability even within species, although its intraspeci c variability is often held to be limited and clearly separated from interspeci c variabi...

Analyses of DNA sequences from the internal transcribed spacer (ITS) region of the nuclear rDNA and from a portion of a manganese-dependent peroxidase gene were used to assess the species in Amylostereum, including isolates from the mycangia of horntails, decay, and basidiomes. Four species are recognized: A. areolatum, A. chailletii, A. laevigatum, and A. ferreum. An unidentified Amylostereum ...

We present an analysis of relationships in Gilliesioideae (Alliaceae) based on a combined matrix of plastid rbcL, the trnL intron, the trnL-F intergenic spacer, and the rpsl6 intron and nuclear ITS ribosomal DNA sequences. The results are generally congruent with previous analyses, indicating two well-supported groups: Ipheion plus allied genera ("lpheieae" ined.) and Gilliesieae. They also pro...

A highly sensitive fluorescent sensor, 8-(2-glucaminoacetylamino)quinoline, for Zn in water is synthesized by integrating a water-soluble glucose group with the 8-aminoquinoline fluorophore via a glycyl spacer. The sensor exhibits a highly selective fluorescence enhancement response to Zn over other metal ions. X-ray analysis shows that the deprotonation of NH in the sensor will occur upon bind...