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https://www.readbyqxmd.com/read/28187611/on-the-poorly-known-haplogynae-spiders-of-the-genus-i-ochyrocera-i-simon%C3%A2-araneae-ochyroceratidae-from-mexico-description-of-two-new-species-with-an-updated-identification-key-for-mexican-species
#1
Alejandro Valdez-Mondragón
Two new species of the spider genus Ochyrocera Simon 1891 are described from Mexico. Ochyrocera jarocha new species was collected under rotten trunks and hollow trunks in a tropical rainforest, in San Martin Volcano, Veracruz, Mexico. Ochyrocera pojoj new species was collected in a mixed forest, under rotten trunks, in La Trinitaria, Chiapas, Mexico, which represents the third species described from the state of Chiapas. With the description of the two new species herein, six species of Ochyrocera are recorded from Mexico...
January 26, 2017: Zootaxa
https://www.readbyqxmd.com/read/28187558/a-new-species-of-i-frankliniella-i-with-7-segmented-antennae-from-mexico-thysanoptera-thripinae
#2
Arturo Goldaracena, Thierry Hance
Frankliniella veracrucensis sp. n. is described from flowers of Salvia leucantha [Lamiaceae] in Veracruz, Mexico. This is the fourth Frankliniella species known with seven antennal segments, and a key to the Frankliniella species with antennae 7-segmented is provided.
February 9, 2017: Zootaxa
https://www.readbyqxmd.com/read/28185210/a-multi-criteria-approach-to-identify-favorable-areas-for-goat-production-systems-in-veracruz-m%C3%A3-xico
#3
Emmanuel de Jesús Ramírez-Rivera, Jose Lopez-Collado, Pablo Díaz-Rivera, Eusebio Ortega-Jiménez, Glafiro Torres-Hernández, Jazmín Jacinto-Padilla, Erasmo Herman-Lara
This research identifies favorable areas for goat production systems in the state of Veracruz, Mexico. Through the use of the analytic hierarchy process, layers of biophysical and soil information were combined to generate a model of favorability. Model validation was performed by calculating the area under the curve, the true skill statistic, and a qualitative comparison with census records. The results showed the existence of regions with high (4494.3 km(2)) and moderate (2985.8 km(2)) favorability, and these areas correspond to 6...
February 9, 2017: Tropical Animal Health and Production
https://www.readbyqxmd.com/read/28128802/-epidemiology-of-caprine-brucellosis-in-the-central-zone-of-the-state-of-veracruz
#4
Daniela Lucía Román-Ramírez, David Itzcoatl Martínez-Herrera, José Alfredo Villagómez-Cortés, Álvaro Enrique de Jesús Peniche-Cardeña, José Francisco Morales-Álvarez, Ricardo Flores-Castro
INTRODUCTION: Brucellosis is a disease of high morbidity that affects several animal species, is transmitted to humans and, therefore, is a zoonosis. It is caused by bacteria of the genus Brucella. In this study we aim to determine seroprevalence, risk factors, and spatial distribution of caprine brucellosis in 14 municipalities in the central region of the state of Veracruz. MATERIALS AND METHODS: This cross-stratified multistage study was conducted between 2009 and 2012...
January 2017: Gaceta Médica de México
https://www.readbyqxmd.com/read/28088368/pollutants-and-biomarker-responses-in-two-reef-fish-species-haemulon-aurolineatum-and-ocyurus-chrysurus-in-the-southern-gulf-of-mexico
#5
Gerardo Gold-Bouchot, J Rubio-Piña, J Montero-Muñoz, N Ramirez-Miss, A Echeverría-García, V Patiño-Suarez, C A Puch-Hau, O Zapata-Pérez
The environmental quality differences between two groups of reefs in the Veracruz Reef System were evaluated. The North group of reefs is very close to Veracruz, an urban and port zone, whereas the South group is more isolated, with minor anthropogenic disturbances. To prove the hypothesis that the North group is more affected by anthropogenic activities, the concentrations of hydrocarbons in liver, metals and metalloids such as Se, As, Ba, Cd, Hg and V in muscle, and PAH metabolites in bile were evaluated, and related to biomarkers (transcript abundance of cytochrome P4501A, Vitellogenin, and Glutathione-S-transferase) in two species of fish: Haemulon aurolineatum and Ocyurus chysurus...
January 11, 2017: Marine Pollution Bulletin
https://www.readbyqxmd.com/read/28062991/complementary-description-of-ergasilus-arthrosis-roberts-1969-copepoda-poecilostomatoida-ergasilidae-a-new-parasite-of-cichlid-teleosts-in-southeast-mexico
#6
María Isabel Jiménez-García, Eduardo Suárez-Morales
During a parasitological survey of the ichthyofauna of Lake Catemaco, a freshwater system in the Mexican State of Veracruz, the widespread copepod Ergasilus arthrosis Roberts, 1969 was recovered from two cichlid teleosts, Mayaheros urophthalmus (Günther) and Oreochromis sp. This is the first confirmed record of this copepod species outside of the United States and from Mexico; its finding as a parasite of cichlids represents an expansion of the known host range for this copepod. The local prevalence and intensity of infection of E...
January 2017: Systematic Parasitology
https://www.readbyqxmd.com/read/28054003/data-documenting-the-potential-distribution-of-aedes-aegypti-in-the-center-of-veracruz-mexico
#7
Israel Estrada-Contreras, César A Sandoval-Ruiz, Fredy S Mendoza-Palmero, Sergio Ibáñez-Bernal, Miguel Equihua, Griselda Benítez
The data presented in this article are related to the research article entitled "Establishment of Aedes aegypti (L.) in mountainous regions in Mexico: Increasing number of population at risk of mosquito-borne disease and future climate conditions" (M. Equihua, S. Ibáñez-Bernal, G. Benítez, I. Estrada-Contreras, C.A. Sandoval-Ruiz, F.S. Mendoza-Palmero, 2016) [1]. This article provides presence records in shapefile format used to generate maps of potential distribution of Aedes aegypti with different climate change scenarios as well as each of the maps obtained in raster format...
February 2017: Data in Brief
https://www.readbyqxmd.com/read/28040251/geochemical-partitioning-of-lead-in-biogenic-carbonate-sediments-in-a-coral-reef-depositional-environment
#8
Guillermo Horta-Puga
The fate of trace elements in reef depositional environments has not been extensively investigated. The aim of this study was to determine the partitioning of Pb in sediments of the Veracruz Reef System, and its relation to local environmental sources. Lead was determined in four geochemical fractions: exchangeable (3.8±0.4μgg(-1)), carbonate (57.0±13.6μgg(-1)), organic matter (2.0±0.9μgg(-1)), and mineral (17.5±5.4μgg(-1)). For the mineral fraction, lead concentrations were higher in those reefs influenced by river discharge or by long-distance transport of terrigenous sediments...
December 28, 2016: Marine Pollution Bulletin
https://www.readbyqxmd.com/read/28035260/effect-of-initial-soil-properties-on-six-year-growth-of-15-tree-species-in-tropical-restoration-plantings
#9
Cristina Martínez-Garza, Julio Campo, Martin Ricker, Wolke Tobón
In restoration plantings in degraded pastures, initial soil nutrient status may lead to differential growth of tropical tree species with diverse life history attributes and capacity for N2 fixation. In 2006, we planted 1,440 seedlings of 15 native tree species in 16 fenced plots (30 × 30 m) in a 60-year-old pasture in Los Tuxtlas, Veracruz, Mexico, in two planting combinations. In the first year, we evaluated bulk density, pH, the concentration of organic carbon (C), total nitrogen (N), ammonia (NO3-), nitrate (NH4+), and total phosphorus (P) in the upper soil profile (0-20 cm in depth) of all plots...
December 2016: Ecology and Evolution
https://www.readbyqxmd.com/read/28030600/isoniazid-mono-resistant-tuberculosis-impact-on-treatment-outcome-and-survival-of-pulmonary-tuberculosis-patients-in-southern-mexico-1995-2010
#10
Renata Báez-Saldaña, Guadalupe Delgado-Sánchez, Lourdes García-García, Luis Pablo Cruz-Hervert, Marlene Montesinos-Castillo, Leticia Ferreyra-Reyes, Miriam Bobadilla-Del-Valle, Sergio Canizales-Quintero, Elizabeth Ferreira-Guerrero, Norma Téllez-Vázquez, Rogelio Montero-Campos, Mercedes Yanes-Lane, Norma Mongua-Rodriguez, Rosa Areli Martínez-Gamboa, José Sifuentes-Osornio, Alfredo Ponce-de-León
BACKGROUND: Isoniazid mono-resistance (IMR) is the most common form of mono-resistance; its world prevalence is estimated to range between 0.0 to 9.5% globally. There is no consensus on how these patients should be treated. OBJECTIVE: To describe the impact of IMR tuberculosis (TB) on treatment outcome and survival among pulmonary TB patients treated under programmatic conditions in Orizaba, Veracruz, Mexico. MATERIALS AND METHODS: We conducted a prospective cohort study of pulmonary TB patients in Southern Mexico...
2016: PloS One
https://www.readbyqxmd.com/read/28004635/host-specificity-and-the-structure-of-helminth-parasite-communities-of-fishes-in-a-neotropical-river-in-mexico
#11
Guillermo Salgado-Maldonado, María Teresa Novelo-Turcotte, Juan Manuel Caspeta-Mandujano, Gabriela Vazquez-Hurtado, Benjamin Quiroz-Martínez, Norman Mercado-Silva, Mario Favila
In a tropical locality of Río La Antigua, Veracruz, Mexico, 11 fish species, represented by 244 individual fish from six freshwater fish families living sympatrically and synchronically, were examined for helminth parasites. A total of 36 taxa of helminths were recorded, 24 autogenic and 12 allogenic forms, including 6 monogeneans, 14 trematodes, 1 cestode, and 15 nematodes. Most helminth taxa were recovered for 10/11 of the component communities we analyzed. The results contribute empirical evidence that host specificity is an important force in the development of helminth communities of freshwater fishes...
2016: Parasite: Journal de la Société Française de Parasitologie
https://www.readbyqxmd.com/read/27988584/a-diversity-and-conservation-inventory-of-the-herpetofauna-of-the-cuautlapan-valley-veracruz-mexico
#12
Nelson M Ceron DE LA Luz, Julio A Lemos-Espinal, Geoffrey R Smith
We compiled an inventory of the amphibians and reptiles of the Cuautlapan Valley, Veracruz, Mexico based on field surveys and museum and literature records. We found a total of 78 species: 28 amphibians (6 Salamanders and 22 anurans); and 50 reptiles (three turtles, 18 lizards, and 29 snakes). These taxa represent 26 families (eight amphibian families, 18 reptile families) and 60 genera (19 amphibian genera, 41 reptile genera). Two of these species are not native to the area (Rhinoclemmys pulcherrima and Hemidactylus frenatus)...
December 5, 2016: Zootaxa
https://www.readbyqxmd.com/read/27917189/first-resistance-mechanisms-characterization-in-glyphosate-resistant-leptochloa-virgata
#13
Ricardo Alcántara-de la Cruz, Antonia M Rojano-Delgado, María J Giménez, Hugo E Cruz-Hipolito, José A Domínguez-Valenzuela, Francisco Barro, Rafael De Prado
Leptochloa virgata (L.) P. Beauv. is an annual weed common in citrus groves in the states of Puebla and Veracruz, Mexico limiting their production. Since 2010, several L. virgata populations were identified as being resistant to glyphosate, but studies of their resistance mechanisms developed by this species have been conducted. In this work, three glyphosate-resistant populations (R8, R14, and R15) collected in citrus orchards from Mexico, were used to study their resistance mechanisms comparing them to one susceptible population (S)...
2016: Frontiers in Plant Science
https://www.readbyqxmd.com/read/27890871/chagas-disease-in-mexico-report-of-14-cases-of-chagasic-cardiomyopathy-in-children
#14
Paz María Salazar-Schettino, Margarita Cabrera-Bravo, Clara Vazquez-Antona, Edgar Zenteno, Mariana De Alba-Alvarado, Elia Torres Gutierrez, Yolanda Guevara Gomez, María Gabriela Perera-Salazar, Guadalupe Garcia de la Torre, Martha Irene Bucio-Torres
Chagas disease is a parasitic infection mainly found in Latin America; it is transmitted by a triatomine, also known as assassin bug or kissing bug. In humans, the parasite causes mostly cardiac disorders. Two-thirds of the Mexican territory are regarded as risk areas for vector transmission of Trypanosoma cruzi, the causal agent. The parasite can be found as a blood-borne trypomastigote or as an intracellular amastigote. The progression and severity of lesions could be due to frequent reinfections or to infection by highly virulent strains...
2016: Tohoku Journal of Experimental Medicine
https://www.readbyqxmd.com/read/27863974/establishment-of-aedes-aegypti-l-in-mountainous-regions-in-mexico-increasing-number-of-population-at-risk-of-mosquito-borne-disease-and-future-climate-conditions
#15
Miguel Equihua, Sergio Ibáñez-Bernal, Griselda Benítez, Israel Estrada-Contreras, César A Sandoval-Ruiz, Fredy S Mendoza-Palmero
The study was conducted in the central region of Veracruz Mexico, in the metropolitan area of Xalapa. It is a mountainous area where Aedes aegypti (L.) is not currently endemic. An entomological survey was done along an elevation gradient using the Ae. aegypti occurrences at different life cycle stages. Seven sites were sampled and a total of 24 mosquito species were recorded: 9 species were found in urban areas, 18 in non-urban areas with remnant vegetation, and 3 occurred in both environments. Ae. aegypti was found only in the urban areas, usually below 1200m a...
February 2017: Acta Tropica
https://www.readbyqxmd.com/read/27802405/first-record-of-the-asian-tiger-mosquito-aedes-albopictus-in-hidalgo-state-mexico
#16
Aldo I Ortega-Morales, Sarai M Cueto-Medina, Quetzaly K Siller Rodríguez
The occurrence of the Asian tiger mosquito, Aedes albopictus , has been reported in the Mexican states of Tamaulipas, Nuevo León, Coahuila (northeastern), Veracruz, Chiapas, Quintana Roo (southeastern), Morelos, San Luis Potosí (middle), and Sinaloa (northwestern). In April and September 2012, Ae. albopictus was collected in a variety of habitats and landing/biting on the collecting personnel in 12 counties of Hidalgo state (middle). This is the first record of the occurrence of this species in Hidalgo state...
September 2016: Journal of the American Mosquito Control Association
https://www.readbyqxmd.com/read/27762425/haloalkalitolerant-actinobacteria-with-capacity-for-anthracene-degradation-isolated-from-soils-close-to-areas-with-oil-activity-in-the-state-of-veracruz-mexico
#17
Reyna Del C Lara-Severino, Miguel A Camacho-López, Edgar Casanova-González, Leobardo M Gómez-Oliván, Ángel H Sandoval-Trujillo, Keila Isaac-Olivé, Ninfa Ramírez-Durán
The use of native strains of microorganisms from soils is an excellent option for bioremediation. To our knowledge, until now there has been no other group working on the isolation of Actinobacteria from contaminated soils in Mexico. In this study, samples of soils close to areas with oil activity in the State of Veracruz, Mexico, were inoculated for the isolation of Actinobacteria. The strains isolated were characterized morphologically, and the concentrations of NaCl and pH were determined for optimal growth...
March 2016: International Microbiology: the Official Journal of the Spanish Society for Microbiology
https://www.readbyqxmd.com/read/27761348/invasion-of-the-tropical-earthworm-pontoscolex-corethrurus-rhinodrilidae-oligochaeta-in-temperate-grasslands
#18
Diana Ortiz-Gamino, Paulino Pérez-Rodríguez, Angel I Ortiz-Ceballos
The tropical earthworm Pontoscolex corethrurus (Rhinodrilidae, Oligochaeta) presents a broad distribution (e.g., 56 countries from four continents). It is generally assumed that temperature appears to limit the success of tropical exotic species in temperate climates. However, the distribution range of this species could advance towards higher elevations (with lower temperatures) where no tropical species currently occur. The aim of this study was to evaluate the soil and climatic variables that could be closely associated with the distribution of P...
2016: PeerJ
https://www.readbyqxmd.com/read/27720785/phylogenomics-and-species-delimitation-in-the-knob-scaled-lizards-of-the-genus-xenosaurus-squamata-xenosauridae-using-ddradseq-data-reveal-a-substantial-underestimation-of-diversity
#19
Adrián Nieto-Montes de Oca, Anthony J Barley, Rubi N Meza-Lázaro, Uri O García-Vázquez, Joan G Zamora-Abrego, Robert C Thomson, Adam D Leaché
Middle American knob-scaled lizards of the genus Xenosaurus are a unique radiation of viviparous species that are generally characterized by a flattened body shape and a crevice-dwelling ecology. Only eight species of Xenosaurus, one of them with five subspecies (X. grandis), have been formally described. However, species limits within Xenosaurus have never been examined using molecular data, and no complete phylogeny of the genus has been published. Here, we used ddRADseq data from all of the described and potentially undescribed taxa of Xenosaurus to investigate species limits, and to obtain a phylogenetic hypothesis for the genus...
October 5, 2016: Molecular Phylogenetics and Evolution
https://www.readbyqxmd.com/read/27715499/biodegradation-of-malathion-%C3%AE-and-%C3%AE-endosulfan-by-bacterial-strains-isolated-from-agricultural-soil-in-veracruz-mexico
#20
Catya Jimenez-Torres, Irmene Ortiz, Pablo San-Martin, R Idalia Hernandez-Herrera
The objective of this study was to evaluate the capacity of two bacterial strains isolated, cultivated, and purified from agricultural soils of Veracruz, Mexico, for biodegradation and mineralisation of malathion (diethyl 2-(dimethoxyphosphorothioyl) succinate) and α- and β-endosulfan (6,7,8,9,10,10-hexachloro-1,5,5a,6,9,9a-hexahydro-6-9-methano-2,4,3-benzodioxathiepine-3-oxide). The isolated bacterial strains were identified using biochemical and morphological characterization and the analysis of their 16S rDNA gene, as Enterobacter cloacae strain PMM16 (E1) and E...
December 2016: Journal of Environmental Science and Health. Part. B, Pesticides, Food Contaminants, and Agricultural Wastes
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