Antecedentes: Pasteuria penetrans es una bacteria no cultivable que parasita obligadamente a varias especies de nemátodos fitopatógenos. Factores endógenos reproductivos femeninos, vegetales o microbianos desconocidos son indispensables para la multiplicación y formación de endosporas de P. penetrans. Objetivo: Caracterizar las endosporas de P. penetrans mediante la secuenciación del gen 16S ARNr en muestras de hembras adultas de Meloidogyne javanica infectadas y microbiota de hembras adultas de M. javanica infectadas y no infectadas con P. penetrans mediante secuenciamiento de alto rendimiento de la región hipervariable V4 del gen 16S ARNr. Metodología: Se colectaron las raíces infectadas de viñedos, se extrajo nemátodos juveniles (J2) infectivos frescos para fijación de endosporas de P. penetrans y su inoculación en plantas de tomate. El ADN genómico y metagenómico de he...

The dry forests of northern Peru, in the regions of Piura, Tumbes, Lambayeque, and La Libertad, have experienced significant changes as a result of deforestation and changes in land use, leading to the loss of biodiversity and resources. This work analyzed for the first time the changes in vegetation cover and land use of the Pómac Forest Historical Sanctuary (PFHS), located in the department of Lambayeque (northern Peru). The employed approach was the random forest algorithm and visually interpreted Landsat satellite images for the periods 2000–2002, 2002–2004, and 2004–2008. Gain and loss rates were computed for each period, and the recovery process was assessed using the normalized difference vegetation index (NDVI) and enhanced vegetation index (EVI). Results indicate an expansion of agricultural land during each period, resulting in the deforestation of 102.6 hectares of dens...