We investigated the diversity of the Penicillium brevicompactum Dierckx group in dust from 54 houses in Wallaceburg, Ontario, Canada. Two taxa were predominant, P. brevicompactum and Pencillium bialowiezense Zaleski, accounting for 88.6% and 5.4% of the sample set, respectively. We further characterized multilocus haplotypes of isolates by characterizing three polymorphic genetic loci, b-tubuli...

Isolates of Cercospora species from leaves displaying symptoms of grey leaf spot were collected in maize-producing areas of south-central Brazil in 2001 and 2002. Restriction digests of the internal transcribed spacer region of rDNA detected the presence of the same two Cercospora species described on maize in the United States, namely C. zeae-maydis and the recently described species, C. zeina...

Detritus processing is driven by a complex interplay between macroinvertebrate and microbial activities. Bioturbation/feeding activities of invertebrates in sediments are known to influence decomposition rates. However, direct effects of invertebrates on bacterial communities and detritus processing remain ill-defined, mainly because identifying interactions between invertebrates and sediments ...

16S/23S intergenic spacer regions from the rRNA operons of two strains of “Candidatus Liberobacter asiaticum” and one strain of “Candidatus Liberobacter africanum” were cloned and sequenced. The intergenic spacers of the two “Candidatus L. asiaticum” strains studied are identical and contain the genes for isoleucine tRNA (tRNA”‘) and alanine tRNA (tRNAMa) separated by 11 nucleotides. The interg...

haracteristics were compared among Cronartium quercuzzm f. sp . densiflorae and C. quercuum f. sp, thurzbergii from Japan ami C. quercuum f.sp. fusifomze, fusiform rust from the USA. We examined the PCR-amplifield internal transcribed spacer (ITS) regions of ribosomal DNA from Japanese and American sources of aeciospores by restriction fragment length polymorphism (RFLP) analysis and nucleotide...

A bottom-up approach is a promising alternative to build nanodevices and/or nanomachines starting from molecular building blocks. The idea of molecular electronics comes from a farsighted paper by Aviram and Ratner, predicting that single molecules with a donor–spacer–acceptor structure would have rectifying properties when placed between two electrodes. Today, molecular electronics is emerging...

Coremiopleurotus (Pleurotus cystidiosus O.K. Miller) is studied for its taxonomic, cultural, molecular features and nutraceutical attributes and illustrated based on collection from Patiala in Punjab (India). It is a wood decaying edible basidiomycetous mushroom, characterized by the formation of specialized anamorphic structures called coremia. Internal transcribed spacer (ITS) region sequenci...