Morphological, molecular, and life cycle study of a new species of Watson, 1976 (Digenea, Cryptogonimidae) from Colombia.

The present study describes and its life cycle from a rural fish farm in Sopetrán, Antioquia, Colombia. The endemic species of snail and the fishes and are identified as the first intermediate host, the second intermediate host and the definitive host, respectively. The new species was defined through an integrative approach, combining the traditional morphology of its developmental stages with molecular analyses of the markers ITS2 from ribosomal DNA and COI from mitochondrial DNA.

Structural and functional characterization of TgpA, a critical protein for the viability of Pseudomonas aeruginosa.

Pseudomonas aeruginosa is an opportunistic pathogen associated with severe diseases, such as cystic fibrosis. During an extensive search for novel essential genes, we identified tgpA (locus PA2873) in P. aeruginosa PAO1, as a gene playing a critical role in bacterial viability.

[Distribution of Paragonimus (Digenea: Troglotrematidae) in Antioquia Province, Colombia, based on metacercariae counts in freshwater crabs].

Introduction: Paragonimosis or lung fluke disease courses with signs similar to those seen in tuberculosis. The causative agent is a parasite of the genus Paragonimus (Digenea: Troglotrematidae). People become infected by ingesting raw or partially cooked crabs containing metacercariae.