Involvement of bacteria in the development of fungal infections in the Colorado potato beetle.

Entomopathogenic fungi may interact with insects' symbiotic bacteria during infection. We hypothesized that topical infection with Beauveria bassiana may alter the microbiota of the Colorado potato beetle (CPB) and that these modifications may alter the course of mycoses. We used a model with two concentrations of conidia: (1) high concentration that causes rapid (acute) pathogenesis with fast mortality followed by bacterial decomposition of insects; (2) lower concentration that leads to prolonged pathogenesis ending in conidiation on cadavers.

Nearly complete genome sequences of the first two identified Colorado potato beetle viruses.

The Colorado potato beetle is one of the most devastating potato pests in the world. However, its viral pathogens, which might have potential in pest control, have remained unexplored. With high-throughput sequencing of Colorado potato beetle samples derived from prepupal larvae which died from an unknown infection, we have identified two previously unknown RNA viruses and assembled their nearly complete genome sequences.

[Psychosocial pathomorphosis of depressions].

Objective: The aim is to determine the changes in phenomenology of depressions (mostly of melancholic type with pronounced affect of sadness, chronobiological shift, neurovegetative changes and typical affect-congruent depressive ideas) over the past decades.

Material And Methods: We've compared the archival data of one of the authors (V.N.

The Fungus Alters Amounts of Sterols, Fatty Acids, and Hydroxycinnamic Acids in Potato .

The entomopathogenic endophytic fungus can colonize plants resulting in growth promotion and protection against phytopathogenic microorganisms. However, physiological changes in potato plants () during this interaction are poorly understood. In the present work, gas chromatography-mass spectrometry and high-performance liquid chromatography were used to analyze sterol, fatty acid, and phenolic acid concentrations in potato plants inoculated with conidia in soil.

An Experimental Study on Colorado Potato Beetle Hibernation Under Natural Conditions.

One of the major pests of potato Solanum tuberosum L. in the temperate zone is the insect Colorado potato beetle (CPB). Most studies on the immunity and diseases of the CPB are conducted during active feeding stages.