Authors: F. P�³ntigo, M. Moraga and S.V. Flores
Alternative phylogenies for the genus Streptococcus have been proposed due to uncertainty about the among-species group relationships. Here, we performed a phylogenetic analysis of the genus Streptococcus, considering all the species groups and also the genomic data accumulated by other studies. Seventy-five species were subjected to a Bayesian phylogenet.. Read More»
Authors: C. U�§arl�±, F. Tufan and F. G�¼rel
Mature embryos in tissue cultures are advantageous because of their abundance and rapid germination, which reduces genomic instability problems. In this study, 2-day-old isolated mature barley embryos were infected with 2 Agrobacterium hypervirulent strains (AGL1 and EHA105), followed by a 3-day period of co-cultivation in the presence of L-cystein amino .. Read More»
Authors: Z.C. Wu, Y. Liu, W.H. Dong, S.Y. Sun, G.Q. Zhu, S.L. Wu and W.B. Bao
The super antibiotic bactericidal/permeability-increasing (BPI) protein is a member of a new generation of proteins that have been implicated as endotoxin-neutralizing agents. In this study, recombinant porcine BPI protein was obtained by generating porcine BPI encoding prokaryotic, eukaryotic, and yeast expression vectors. Recombinant protein expres.. Read More»
Authors: R. Rinke, A.S. Costa, F.P.P. Fonseca, L.C. Almeida, I. Delalibera J�ºnior and F. Henrique-Silva
The sugarcane weevil, Sphenophorus levis, is a wide-spread sugarcane pest in Brazil. Sphenophorus levis may depend on microorganisms that inhabit its intestinal tract. We examined the diversity of the gut microbiota of S. levis, which was characterized using culture-dependent and culture-independent methods. Analysis of 16S rR.. Read More»
Authors: X.-D. Zheng Z.-R. Zuo X.-J. Su Q. Li
Owing to their codominant, multiallelic, and highly polymorphic nature, microsatellite markers have been used widely in population genetics and biological resource conservation studies. To investigate the genetic structure of Sepioteuthis lessoniana, we developed 24 microsatellite DNA markers and assessed the polymorphism of each locus in a wild S. lessonian.. Read More»
Authors: Lima-Bittencourt CI, Cursino L, Gon�§alves-Dornelas H, Pontes DS, Nardi RMD, Callisto M, Chartone-Souza E and Nascimento AMA
A freshwater enterobacterial population (N = 111) was studied for antimicrobial and mercury resistance patterns, and for its possible association with biotic and abiotic factors in that environment. Conventional biochemical tests identified Klebsiella sp, Morganella sp, Serratia sp, Escherichia sp, Enterobacter sp, Edwarsiella.. Read More»
Authors: F.B. Ferraz and J.H. Fernandez
Macrophages are essential components of the innate and adaptive immune responses, playing a decisive role in atherosclerosis, asthma, obesity, and cancer. The differential gene expression resulting from adhesion of macrophages to the extra-cellular matrix (ECM) has been studied in the J774A1 murine macrophage cell line using quantitative polymerase chain .. Read More»
Authors: C.A. Contreras-Vergara N.A. Stephens-Camacho G. Yepiz-Plascencia G.A. Gonz�¡lez-Aguilar A.A. Arvizu-Flores E. Sanchez-Sanchez M.A. Islas-Osuna
Ethylene induces characteristic ripening reactions in climacteric fruits through its binding to histidine-kinase (HK) receptors, activating the expression of ripening genes. Ethylene receptors have been found in Arabidopsis thaliana (Brassicaceae) and some fruits; number and expression patterns differ among species. In mango, only ethylene receptor ETR1 was .. Read More»
Authors: M.I. Stets, R.M. Etto, C.W. Galv�£o, R.A. Ayub, L.M. Cruz, M.B.R. Steffens and A.C. Barana
The performance of anaerobic filter bioreactors (AFs) is influenced by the composition of the substrate, support medium, and the microbial species present in the sludge. In this study, the efficiency of a slaughterhouse effluent treatment using three AFs containing different support media was tested, and the microbial diversit.. Read More»
Authors: K.G. Suslu, B. Palabiyik and G. Temizkan
We looked for changes in gene expression and novel genes that could be involved in the interaction between glucose repression and oxidative stress response in the fission yeast, Schizosaccharomyces pombe, using a constitutive invertase mutant, ird11, which is resistant to glucose. BLAST analysis was made of the S. pombe genome.. Read More»