Microbial Genetics
Elucidating the function and tolerance mechanism of gamma delta (�³ �´) T cells in a Helicobacter pylori infection model
Authors: T.E. Chen, X.M. Xu, P. Liu, S.Y. Liang and W.X. Lv
In this study, the functions and mechanisms of γ δ T cells were analyzed in patients infected with Helicobacter pylori. Peripheral blood was collected from gastritis patients in the Gastroenterology Department of Ningbo No. 2 Hospital. Preliminary analyses revealed 24 H. pylori-positive and 17 H. pylori-negative patients. The wild-type and &ga.. Read More»
- Genet. Mol. Res. 14(3):
- http://dx.doi.org/2015.September.8.16
- DOI:
- http://dx.doi.org/10.4238/2015.September.8.16
Phylogeography and population structure analysis reveals diversity by mutations in Lasiodiplodia theobromae with distinct sources of selection
Authors: P.H.D. Santos, B.M. Carvalho, K.P. Aguiar, F.A.S. Aredes, T.P.S. Poltronieri, J.M.S. Vivas, V. Mussi Dias, G.A. Bezerra, D.B. Pinho, M.G. Pereira and S.F. Silveira
Lasiodiplodia theobromae is a plant pathogen with a worldwide distribution, with low host specificity, causing stem cankers, dieback diseases, and fruit rot in several species of plants. In coconut, this pathogen is reported as the etiological agent of “coconut leaf blight” (CLB) disease, causing several losses in .. Read More»
- Genet. Mol. Res. 16(2):
- gmr16029681
- DOI:
- 10.4238/gmr16029681
Protection against Taenia pisiformis larval infection induced by a recombinant oncosphere antigen vaccine
Authors: L. Chen, D.Y. Yang, Y. Xie , X. Nong, X. Huang , Y. Fu, X.B. Gu, S.X. Wang, X.R. Peng and G.Y. Yang
Taenia pisiformis larvae cause significant health problems to rabbits. At present, it is not known whether the recombinant antigen from the T. pisiformis oncosphere is able to confer protective immunity against T. pisiformis larval infection. The full-length cDNA was cloned into a pET32a (+) vector, .. Read More»
- Genet. Mol. Res. 13(3):
- 2014.February.13.14
- DOI:
- 10.4238/2014.February.13.14
Infestation by Pyemotes tritici (Acari, Pyemotidae) causes death of stingless bee colonies (Hymenoptera: Meliponina)
Authors: C. Menezes, A. Coletto-Silva, G.S. Gazeta and W.E. Kerr
We report the infestation of stingless bee nests by the mite Pyemotes tritici, which killed four colonies of Tetragonisca angustula and one colony of Frieseomelitta varia in Brazil. The first infected colony, a colony of T. angustula, came from an area between Uberlândia and Araguari, Minas Gerais. The transfer of the mi.. Read More»
- Genet. Mol. Res. 8(2):
- vol8-2kerr021
- DOI:
- 10.4238/vol8-2kerr021
Spatial patterns in the brood combs of Nannotrigona testaceicornis (Hymenoptera: Meliponinae): male clusters
Authors: A. Eterovic, G.C.P. Cabral, A.A. Oliveira, V.L. Imperatriz-Fonseca and P.S. Santos-Filho
Genetic models of sex and caste determination in eusocial stingless bees suggest specific patterns of male, worker and gyne cell distribution in the brood comb. Conflict between queen and laying workers over male parentage and center-periphery gradients of conditions, such as food and temperature, could also contribute to non-.. Read More»
- Genet. Mol. Res. 8(2):
- vol8-2kerr011
- DOI:
- 10.4238/vol8-2kerr011
Pollen sources of the orchid bee Euglossa annectans Dressler 1982 (Hymenoptera: Apidae, Euglossini) analyzed from larval provisions
Authors: M. Cortopassi-Laurino, A. Zillikens and J. Steiner
In order to analyze the pollen resources used by the orchid bee Euglossa annectans, samples of larval provisions from cells under construction were taken from 12 different trap nests (wooden boxes) on Santa Catarina Island, southern Brazil. The 43 samples collected between 2002 and 2005 represented all months except December. .. Read More»
- Genet. Mol. Res. 8(2):
- vol8-2kerr013
- DOI:
- 10.4238/vol8-2kerr013
The number of reproductive workers in highly eusocial Hymenoptera: monogyny and monandry
Authors: P.S. Santos-Filho, A. Eterovic, A.M.P. Kleinert,V.L. Imperatriz-Fonseca
Haplodiploidy results in relatedness asymmetries between colony members of highly eusocial Hymenoptera. As a consequence, queen and reproductive workers are more related to their own sons than to each other’s male offspring. Kin selection theory predicts multiple optima in male parentage: either the queen or the workers .. Read More»
- Genet. Mol. Res. 8(2):
Hygienic behavior in the stingless bees Melipona beecheii and Scaptotrigona pectoralis (Hymenoptera: Meliponini)
Authors: L.M. Medina, A.G. Hart and F.L.W. Ratnieks
Hygienic behavior, a trait that may confer resistance to brood diseases in the honey bee Apis mellifera, was studied in two species of stingless bees in Mexico. Eight colonies each of Melipona beecheii and Scaptotrigona pectoralis were tested for hygienic behavior, the removal of dead or diseased brood, by freeze killing a com.. Read More»
- Genet. Mol. Res. 8(2):
GlpC gene is responsible for biofilm formation and defense against phagocytes and imparts tolerance to pH and organic solvents in Proteus vulgaris
Authors: Y.L. Wu, K.S. Liu, X.T. Yin and R.M. Fei
Biofilm-forming bacteria are highly resistant to antibiotics, host immune defenses, and other external conditions. The formation of biofilms plays a key role in colonization and infection. To explore the mechanism of biofilm formation, mutant strains of Proteus vulgaris XC 2 were generated by Tn5 random transposon insertion. Only one biofilm defective bac.. Read More»
- Genet. Mol. Res. 14(3):
- http://dx.doi.org/2015.September.9.3
- DOI:
- http://dx.doi.org/10.4238/2015.September.9.3
Genetic differentiation between natural and hatchery populations of Manila clam (Ruditapes philippinarum) based on microsatellite markers
Authors: K. Xing, M.L. Gao and H.J. Li
Manila clam (Ruditapes philippinarum) is one of the major aquaculture species around the world and supports an important segment of the aquaculture industry in China. In this study, we used ten microsatellite markers to detect genetic diversity within six R. philippinarum populations and genetic differentiation between them. A.. Read More»
- Genet. Mol. Res. 13(1):
- 2014.January.17.7
- DOI:
- 10.4238/2014.January.17.7