In the present study, the phytochemical composition, antioxidant and anti-hemolytic activities of root and aerial part Rubia tinctorum hydromethanolic extracts were investigated. Phytochemical screening reveals the presence of phenol, alkaloids, coumarin, flavonoids, and tannins in both extracts. LC-ESI-MS/MS analysis showed the presence of 15 and 17 components in the root and...
The estimation of changes in the diversity and composition of insect communities in transmission areas belonging to different life zones, can indicate differential patterns in transmission and associated reservoir fauna, as well as different epidemiological risk scenarios. An example is leishmaniasis, a parasitosis related to the presence of phlebotomine sandflies of the...
The Potable Water Treatment Plant - PWTP Tibitoc is largely supplied by the Bogotá River, through two intakes located in the sector El Espino. Is evident the uncontrolled development of the macrophyte Eichhornia crassipes attributed to the constant contribution of nutrients and organic matter load upstream of the basin, which generates problems in the ecosystem dynamics of the...
The aim of this study was to determine the diversity of phlebotomine sandflies (Diptera: Psychodidae) in the peri-urban area of Montería, Córdoba, Colombia. The specimens were collected in four locations around Monteria with CDC traps and manual aspirators between February and June 2018, and they were fragmented and clarified with lactophenol, for later identification by means...
Diesel oil is a complex mixture of aliphatic and aromatic hydrocarbons, which due to the wide usage has become a frequent environmental pollutant. Then, it is imperative to explore viable and economic alternatives for diesel oil degradation. The purpose of this work was to analyze the degradation of diesel oil by bacteria isolated from polluted soil, as well as to evaluate the...
The Salinas de Chilca are located at km 65 of the Panamericana Sur highway, represented by three lagoons: La Milagrosa (main lagoon and salt ponds), La Mellicera and La Encantada. The environment of these lagoons belongs to the Subtropical Desert (d-ST) life zone. The objective of the present study was to determine the influence of environmental variables on changes in the...
Natural forest's covers are changing due to the spread of the urban, agricultural and livestock frontier, affecting the availability of shelters and resources for the breeding of birds. Despite our knowledge of the influence of anthropic interventions on biodiversity, investigations that show the anthropic effect on natural history of birds, included the breeding phase, are...
Potato yellow mosaic virus (PYMV / Co), Passionfruit leaf distortion virus (PLDV), Pepper rugose mosaic virus (PRMV), Rhynchosia golden mosaic Colombia virus (RhGMCV) are begomoviruses of agricultural interest isolated and molecularly characterized in Valle del Cauca. However, at present there is not enough information about their alternate hosts. Given that weeds play a role in...
Mexico is the centre of origin of the chayote (Sechium edule Jacq. Sw), an important plant in human consumption and in pharmaceuticals. The objective of this study was to determine the potential distribution of domesticated S. edule in Mexico using seven species distribution algorithms, to efficiently manage S. edule resources and help its conservation by identifying patterns of...
Arbuscular mycorrhizal fungi (AMF) have the potential to reduce the deleterious effect of soil-borne pathogens, but their ability for pathogen biocontrol may vary depending on the genotype of the plant, the pathogen, and the AMF interaction. Thus, the aim of this work was to evaluate the effect of the Mexican biofertilizer Rizofermic-UV based on a mix of AMF formulation against...
One of the most important leishmaniasis foci in Colombia is Los Montes de María, Department of Bolívar, specifically in El Carmen de Bolívar. To date, 19 species of Lutzomyia have been recognized in this department, some with antecedents as vectors of Leishmania spp. This note reports the abundance and diversity of the phlebotomine sandflies fauna in the rural area of El Carmen...
We report for the first time the genera Aphanistes and Habronyx in Colombia, Castrosion and Ophiopterus in Peru, and Anomalon in Trinidad and Tobago. Besides, we provide the first record of Anomalon fuscipes in Brazil, A. sinuatum in Trinidad and Tobago, and A. ugaldei in Peru.Keywords : Anomalon; Aphanistes; Castrosion; Darwin wasps; Habronyx; Ophiopterus.
Most of the ants that are associated with plants usually nests in vegetative organs such as stems, leaves or petioles. Aiming to contribute to the plant-insect interactions, we report the first record of Crematogaster carinata nesting inside the fruits ofMacropsychanthus comosus. We did fieldwork in two localities of department of Antioquia and one of the Bolivar department, we...
The foundation of the Universidad Nacional de los Estados Unidos de Colombia in 1867 took place almost a decade after the publication of Darwin's Origin of Species (1859) and Virchow's Die Cellularpathologie (1859). The first of these works presents the theory of evolution by natural selection, the second the cell theory, both of which underpin modern biology. The analysis of...
Bees are insects of great ecological importance since they are responsible for processes such as pollination in natural and agricultural environments, contributing to the health and resilience of ecosystems. We conducted a review to address the taxonomic and functional dimensions of the bees' diversity in palm, potato, coffee, granadilla, gulupa and passion fruit crops. Using...
Plecturocebus ornatus is an endemic vulnerable species due to its population decline and its restricted range within the Eastern Plains of Colombia. This region is affected by deforestation as a result of legal and illegal economic activities. The aim of this work was to analyze the presence and abundance of P. ornatus during a period of urban and livestock production expansion...
Papa criolla is one of the most important agricultural products in the Colombian Andean region. Viral diseases, mostly caused by PYVV, PVS, PLRV and PVV, are one of the most limiting factors that constraint the productivity of this crop. In order to gain new knowledge of the S. phureja virome in Colombia, in this study using high-throughput sequencing (HTS) and quantitative RT...
Historically, the reduction in water quality has been associated with changes in land use, especially changes in urbanization and expansion of agricultural frontiers. The objective of this study was to understand the characteristics of the diatomological community and the use and occupation of the soil around three reservoirs (Arara, Rio do Canto and Araçagi) and natural lagoon...
The cultivation of Phaseolus vulgaris L. is widespread in the world. The genetic transformation via Agrobacterium tumefaciens, is an alternative to obtain cultivars with tolerance or resistance to adverse environmental conditions for this species. However, the cultivar-dependent condition and the low regeneration of the transformed tissue in the protocols established for P...
Seafood contamination with microplastics is one major route for human intake. Shellfish are among the most important since most shellfish species are eaten fresh and entirely. The aim of the present study was to report the abundance and characteristics of microplastics in commercial bivalve Aulacomya atra sold in fisheries from three Peruvian provinces. Market surveys were...
Specimens of cultured zebrafish acquired from different fish farms in Brazil may show genetic variability and alteration in allele frequency due to genetic drift and selective pressure in a captive environment, resulting in the differentiation of productive and reproductive characteristics. The aim of this study was to evaluate the genetic variability and reproductive...
The Sierra de Huautla Biosphere Reserve is a biodiversity reservoir in the Mexican dry tropics. The peasant communities historically inhabiting it have been used its natural resources for their subsistence, including wildlife. In order to characterize the hunting practices in the community of Pitzotlán, Morelos, interviews were applied to ten local farmers, as well as participant...
Vibrio cholerae is a potential human pathogen that inhabits aquatic environments, although its presence and abundance have been associated with increased water temperature, little research has been done on its ecology in tropical estuarine environments, where salinity changes tend to be more important. The present study evaluated the distribution of V. cholerae in the Ciénaga...
The coffee berry borer, Hypothenemus hampei, is an insect pest that causes significant damage to the grain and profound economic losses to coffee crops and producers worldwide. Like other insects, the coffee berry borer requires chitin synthases (CHS) for the biosynthesis of chitin, which is the main component of the insect exoskeleton, as well as a component of vital importance...
The current need to preserve the diversity in the ecosystems of paramo given the multiple threats that affect them, requires a fast recognition of the most vulnerable species. We applied two methodologies for the rapid evaluation of the risk condition of Angiosperm species distributed in six paramo complexes of Antioquia. Both methods use information associated with herbarium...