Expression analysis of defense signaling marker genes in Capsicum annuum in response to phytohormones elicitation.

Background: To tolerate biotic stress, plants employ phytohormones such as jasmonic acid (JA), salicylic acid (SA), and ethylene (ET) to regulate the immune response against different pathogens. Phytohormone-responsive genes, known as "Defense signaling marker genes," are used to evaluate plant disease resistance during pathogen infection. Most information on these marker genes derives from studies on the model plant Arabidopsis thaliana.

Morphological and Molecular Identification of Isolates with Differential Pathogenicity in .

Chayote () is a crop of great economic and pharmaceutical importance in Mexico. Chayote is affected by , which causes plant wilt and fruit rot. Three isolates of (A1-C, A2-H, and A3-O) were obtained from three producing areas in Veracruz, Mexico.

Bacterial communities of the psyllid pest (Hemiptera: Triozidae) Central haplotype of tomato crops cultivated at different locations of Mexico.

Background: The psyllid, , is an insect vector of ' Liberibacter' causing "Zebra chip" disease that affects potato and other crops worldwide. In the present study, we analyzed the bacterial communities associated with the insect vector central haplotype of tomato crop fields in four regions from Mexico.

Methods: PCR was used to amplify the mitochondrial () and then analyze the single nucleotide polymorphisms (SNP) and phylogenetic analysis for haplotype identification of the isolated .

Bacterial Strains from Saline Environment Modulate the Expression of Saline Stress-Responsive Genes in Pepper ().

Salinity stress is one of the most important problems in crop productivity. Plant growth-promoting bacteria (PGPB) can also confer stress tolerance in plants under saline soil conditions. In a previous work, it was reported that bacteria strains isolated from hypersaline sites mitigated salt stress in chili pepper ( var.

Characterization of microbial communities from rumen and large intestine of lactating creole goats grazing in arid plant communities.

Arid plant communities provide variable diets that can affect digestive microbial communities of free-foraging ruminants. Thus, we used next-generation sequencing of 16S and 18S rDNA to characterize microbial communities in the rumen (regurgitated digesta) and large intestine (faeces) and diet composition of lactating creole goats from five flocks grazing in native plant communities in the Sonoran Desert in the rainy season. The bacterial communities in the rumen and large intestine of the five flocks had similar alpha diversity (Chao1, Shannon, and Simpson indices).