Related GMR Articles

Chromobacterium violaceum; Genome; Pathogenicity; Virulence

Chromobacterium violaceum is a versatile, Gram-negative β-protebacterium that grows in a variety of ecosystems in tropical and subtropical areas, such as the water and borders of the Negro River, in the Amazon region of Brazil. Although it is a saprophyte and is generally considered non-pathogenic, sporadic cases of human infection have been described, mainly in young children and in ... more

C.F.Alves de Brito; C.M.B. Carvalho; F.R. Santos; R.T. Gazzinelli; S.C. Oliveira; V. Azevedo; S.M.R. Teixeira
Cell wall; Cell wall-associated enzymes; Dimorphism; Paracoccidioides brasiliensis

The cell wall of a human pathogenic fungus is in contact with the host, serves as a barrier against host defense mechanisms and harbors most fungal antigens. In addition, cell wall biosynthesis pathways have been recognized as essential to viability and as specific drug targets. Paracoccidioides brasiliensis is a dimorphic fungus that presents mycelium morphology in the free ... more

P.Kott Tomazett; A.Helena da Cruz; S.Maria Rond Bonfim; C.Maria de A. Soares; M. Pereira
26S proteasome; Paracoccidioides brasiliensis; Protein degradation; Protein modification; Transcriptome analysis; Translation

The translational and post-translational modification machineries of Paracoccidioides brasiliensis were assessed by means of comparative analyses of PbAESTs (P. brasiliensis assembled expressed sequence tags) with sequences deposited on different databases. Of the 79 sequences corresponding to cytosolic ribosomal proteins, we were able to find 78 in the P. ... more

D.Paulo de Souza; S.Souza Silva; A.J. Baptista; A.Moraes Nicola; C.M. Kyaw; I. Silva-Pereira
Expressed sequence tag; Paracoccidioides brasiliensis; RNA modifications; Splicing; Transcription; Transcriptome analysis

The RNA biogenesis machinery of Paracoccidioides brasiliensis was assessed by comparative analyses of PbAESTs (P. brasiliensis assembled expressed sequence tags (ESTs)) with sequences from Saccharomyces cerevisiae MIPS database. PbAESTs related to almost all categories of S. cerevisiae RNA biogenesis were found. Two of the 12 S. cerevisiae ... more

P. Albuquerque; A.J. Baptista; Lda Silveir Derengowsky; L. Procópio; A.Moraes Nicola; F.B.M. Arraes; D.Paulo de Souza; C.Maria Kyaw; I. Silva-Pereira
Cell cycle; DNA repair; DNA replication; Paracoccidioides brasiliensis; Recombination; Transcriptome

DNA replication, together with repair mechanisms and cell cycle control, are the most important cellular processes necessary to maintain correct transfer of genetic information to the progeny. These processes are well conserved throughout the Eukarya, and the genes that are involved provide essential information for understanding the life cycle of an organism. We used computational ... more

V.Castelo Br Reis; F.Araripe Go Torres; M.José Poças-Fonseca; M.Teixeira De-Souza; D.Paulo de Souza; J.Ricardo Mo Almeida; C. Marinho-Silva; N.Skorupa Parachin; Ada Silva Dantas; T.Machado Mello-de-Sousa; L.Maria Pepe de Moraes
ISSR-PCR; Morphotype; Pathogenicity; Pathotype; Wilt disease

Verticillium dahliae is a fungal pathogen that causes wilt disease in a wide range of host plants. Characterization of virulence, morphological, and molecular variations among V. dahliae isolates from different geographic origins is essential for any breeding program aimed at producing plant cultivars resistant to this disease. We characterized virulence variation among ... more

Z. Xu; Z. Ali; X. Hou; H. Li; J.X. Yi; P.A. Abbasi
Anastomosis groups; Cotton; Pathogenicity; RAPD-PCR; Rhizoctonia solani; SDS-PAGE

Twenty-one isolates of Rhizoctonia solani were categorized into three anastomosis groups consisting of AG-4-HG-I (eight isolates), AG-2-2 (nine isolates) and AG-5 (four isolates). Their pathogenic capacities were tested on cotton cultivar Giza 86. Pre-emergence damping-off varied in response to the different isolates; however, the differences were not significant. Soluble ... more

M.A. Mahmoud; S.A. Al-Sohaibani; A.M.M. Abdelbacki; M.R. Al-Othman; A.R.M.Abd El Aziz; K.K. Kasem; M.S. Mikhail; K.K. Sabet; M.R. Omar; E.M. Hussein
Genetic diversity; Inter-simple sequence repeat (ISSR); Oilseed rape; Pathogenicity; Sclerotinia sclerotiorum

The pathogenicity of 47 isolates of Sclerotinia sclerotiorum from oilseed rape (Brassica napus L.) in Anhui, China, was tested by detached leaf inoculation using the susceptible rape cultivar Wanyou-14. All isolates were pathogenic to the cultivar and could be grouped into 3 categories based on the lesion length on the leaves tested: weak pathogenicity type, intermediate ... more

D.F. Xu; X.L. Li; Y.M. Pan; Y.L. Dai; P. Li; F.X. Chen; H.J. Zhang; M. Guo; Z.M. Gao
Morphological characters; Pathogenicity; TEF-1α; Unweighted pair group method with arithmetic mean

The occurrence of Fusarium spp associated with pecan tree (Carya illinoinensis) diseases in Brazil has been observed in recent laboratory analyses in Rio Grande do Sul State. Thus, in this study, we i) obtained Fusarium isolates from plants with disease symptoms; ii) tested the pathogenicity of these Fusarium isolates to pecan; iii) characterized and ... more

M. Lazarotto; P.M. Milanesi; M.F.B. Muniz; L.R.S. Reiniger; R. Beltrame; R. Harakava; E. Blume
1; 3-b-glucan synthase; Gene structure; Intron evolution; Paracoccidioides brasiliensis

The evolutionary origin and significance of spliceosomal introns have been the subject of many investigations. Two theories, “introns-early” theory and “introns-late” theory, have been proposed to explain the evolution of introns in eukaryotic genes. Intron position is generally conserved in paralogue and orthologue genes. Some introns occur at similar but not necessarily identical positions ... more

M. Pereira; H.T.S. Okamoto; C.M.A. Soares