Modulation of conidia production and expression of the gene bbrgs1 from Beauveria bassiana by oxygen pulses and light.

摘要: Abstract Light and oxidant states affect the conidiation in diverse fungi, although response has not been described when both stimuli are applied simultaneously. Conidial production quality Beauveria bassiana were analysed under four conditions for a wild-type (wt) strain previously isolated mutant (mt): normal atmosphere (21% O2; NA) or oxygen-enriched pulses (26% OEP), with either light (L) darkness (D). The was complemented by following expression of bbrgs1 gene, encoding regulator G-protein signal associated to conidia production. Conidiation significantly affected any condition (highest value NA-L: 2.7 × 108 con cm−2). Relative maximal levels NA (NA-D: 4 × 107 con cm2), wt diminished 34-fold OEP. higher (up 188 times) every relative strain, fact consistent yields between strains. Viability hydrophobicity less culture conditions, pathogenicity parameters improved from OEP, darkness, strain-dependent conidial production, viability, infectivity conidia, then these could be modulated mass processes.