Isolation, identification, and pathogenicity of and its bacterial symbiont in Cauca-Colombia.

In Colombia, identification of entomopathogenic nematodes (EPN's) native species is of great importance for pest management programs. The aim of this study was to isolate and identify EPNs and their bacterial symbiont in the department of Cauca-Colombia and then evaluate the susceptibility of two Hass avocado () pests to the EPNs isolated. EPNs were isolated from soil samples by the insect baiting technique.

An integrative approach to the study of (Nematoda: Hoplolaimidae) Colombian and Brazilian populations associated with crops.

In total, 10 populations of associated with spp., six from Colombia, and four from Brazil were identified to the species level. Morphological and morphometric data were recorded for each population, performed a principal components analysis (PCA), a conglomerate, along with consensus sequences of D2 to D3 expansion segment of the large subunit of ribosomal DNA (28S) for different populations.

Morpho-molecular characterization of Colombian and Brazilian populations of associated with spp.

Three populations, two from Colombia and one from Brazil, of associated with banana and plantain, were characterized using morphological, morphometric, and molecular methods. Morphometric data from these populations were similar to type and reference populations of . Partial sequences of both D2-D3 rDNA and mitochondrial cytochrome oxidase subunit I (COI) regions had a strong affinity (99% similarity) to previously published sequences of .

The double life of Ceratobasidium: orchid mycorrhizal fungi and their potential for biocontrol of Rhizoctonia solani sheath blight of rice.

Ceratobasidium includes orchid mycorrhizal symbionts, plant pathogens and biocontrol agents of soilborne plant pathogens. It is not known to what extent members of the first guild also can participate in the others. Ceratobasidium spp.