Microbial Genetics
Drug resistance in Chromobacterium violaceum
Authors: Fabiana Fantinatti-Garboggini, Rosana de Almeida, VinÃ?Âcius do Amaral Portillo, TÃ?©rcio A.P. Barbosa, Peterson Beltramini Trevilato, CÃ?Âcero Eduardo Ramalho Neto, RosÃ?¢ngela Duarte CoÃ?ªlho, Luciana Aparecida Bartoleti, Ebert Seixas Hanna, Marcelo Brocchi, Gilson P. Manfio, Denise Wanderlei Silva
Chromobacterium violaceum is a free-living bacterium commonly found in aquatic habitats of tropical and subtropical regions of the world. This bacterium is able to produce a large variety of products of biotechnological and pharmacological use. Although C. violaceum is considered to be non-pathogenic, some cases of severe infe.. Read More»
- Genet. Mol. Res. 3(1):
Transport genes of Chromobacterium violaceum: an overview
Authors: Thalles Barbosa Grangeiro, Daniel Macedo de Melo Jorge, Walderly Melga�§o Bezerra, Ana Tereza Ribeiro Vasconcelos, Andrew John George Simpson
The complete genome sequence of the free-living bacterium Chromobacterium violaceum has been determined by a consortium of laboratories in Brazil. Almost 500 open reading frames (ORFs) coding for transport-related membrane proteins were identified in C. violaceum, which represents 11% of all genes found. The main class of tran.. Read More»
- Genet. Mol. Res. 3(1):
Tolerance to stress and environmental adaptability of Chromobacterium violaceum
Authors: Mariangela Hungria, Marisa Fabiana NicolÃ?¡s. Claudia Teixeira GuimarÃ?£es, SÃ?Âlvia Neto Jardim, Eliane Aparecida Gomes, Ana Tereza Ribeiro de Vasconcelos
Chromobacterium violaceum is a Gram-negative bacterium, abundant in a variety of ecosystems in tropical and subtropical regions, including the water and borders of the Negro River, a major component of the Amazon Basin. As a free-living microorganism, C. violaceum is exposed to a series of variable conditions, such as differen.. Read More»
- Genet. Mol. Res. 3(1):
Chemotaxis and flagellar genes of Chromobacterium violaceum
Authors: Maristela Pereira, Juliana Alves Parente, Luiz Artur Mendes Bataus, Divina das Dores de Paula Cardoso, Renata Bastos Ascen�§o Soares, C�©lia Maria de Almeida Soares
The availability of the complete genome of the Gram-negative β-proteobacterium Chromobacterium violaceum has increasingly impacted our understanding of this microorganism. This review focuses on the genomic organization and structural analysis of the deduced proteins of the chemosensory adaptation system of C. violaceum. .. Read More»
- Genet. Mol. Res. 3(1):
Gene expression in Chromobacterium violaceum
Authors: Rosane Silva, J�ºlia R. Araripe, Edson Rondinelli, Tur�¡n P. ��rm�©nyi
The repertoire of 4,431 open reading frames (ORFs), eight rRNA operons and 98 tRNA genes of Chromobacterium violaceum must be expressed in a regulated manner for successful adaptation to a wide variety of environmental conditions. To accomplish this feat, the organism relies on protein machineries involved in transcription, RN.. Read More»
- Genet. Mol. Res. 3(1):
Bacteriophages and insertion sequences of Chromobacterium violaceum ATCC 12472
Authors: Rosana de Almeida, Peterson Beltramini Trevilato, Luciana Aparecida Bartoleti, Jos�© Luiz Proen�§a-M�³dena, Ebert Seixas Hanna, Gustavo Bueno Gregoracci, Marcelo Brocchi
A fluid genome is a great advantage to prokaryotes, enabling quick adaptation to various types of ecological niches and to diverse environmental selective pressures. A substantial portion of these sudden changes is mediated by lateral gene transfer (LGT), through genetic recombination mechanisms, such as transformation, conjug.. Read More»
- Genet. Mol. Res. 3(1):
Genetic polymorphism at spinocerebellar ataxia 1 and 2 loci in Brazil
Authors: Stenio F.P. Duarte, Raquel S. Gestinari, M�¡rio Campos-Jr, M�¡rcia M.G. Pimentel, Marcelo A. Costa Lima
Dynamic mutation involves the expansion of a tandem arrayed DNA sequence that is polymorphic in the population. This mechanism is associated with neurological/neuromuscular disorders and the pathology depends on the extension of the repeated tract, with a specific threshold for each disease. We made a PCR-based characterizatio.. Read More»
- Genet. Mol. Res. 2(4):
Oxidative stress in Lactococcus lactis
Authors: Anderson Miyoshi, Tatiana Rochat, Jean-Jacques Gratadoux, Yves Le Loir, Sergio Costa Oliveira, Philippe Langella Vasco Azevedo
Lactococcus lactis, the most extensively characterized lactic acid bacterium, is a mesophilic- and microaerophilic-fermenting microorganism widely used for the production of fermented food products. During industrial processes, L. lactis is often exposed to multiple environmental stresses (low and high temperature, low pH, hig.. Read More»
- Genet. Mol. Res. 2(4):
Molecular cytogenetic assignment of genes to bovine chromosome 5
Authors: Marcos De Donato, Dan S. Gallagher Jr., Cathy Lehn, Clare Gill, Jerry F. Taylor
Seven genes were assigned by molecular cytogenetic methods to bovine chromosome 5. To accomplish this, specific primers were either publicly available or were designed from highly conserved regions of the publicly available mammalian gene sequences. The identity of the amplified segments was verified by sequencing and alignmen.. Read More»
- Genet. Mol. Res. 2(3):
Yield and post-harvest quality of tomato hybrids heterozygous at the loci alcoba�§a, old goldcrimson or high pigment
Authors: Marcos Ventura Faria, Wilson Roberto Maluf, Sebasti�£o M�¡rcio de Azevedo, Valter Carvalho Andrade-J�ºnior, Luiz Antonio Augusto Gomes, Paulo Moretto, Vicente Licursi
The effects of the fruit ripening mutant gene alcobaça (alc) and color development mutants, old gold-crimson (ogc) and high pigment (hp), on yield and post-harvest quality of tomato fruits were investigated. Five tomato hybrids were obtained by crossing near isogenic lines with Flora-Dade background [Flora-Dade (alc+/al.. Read More»
- Genet. Mol. Res. 2(3):