Влияние бактерий-антагонистов на развитие симптомов основных болезней томата в защищенном грунте

The purpose of the given work consist in studying effective and ecologically safe measures of protection from the major diseases of a tomato in the protected ground. The estimation of development of symptoms of withering at plants of a tomato of hybrid Kunero F1 is given at processing by bacteria-antagonists and inoculation Clavibacter michiganensis. It shows the inhibitory influence of isolants of bacteria-antagonists on Bothrytis cenerea and Fusarium sp.Цель данной работы заключалась в изучении эффективных и экологически безопасных мер защиты от важнейших заболеваний томата в защищенном грунте. Дана оценка развития симптомов увядания у растений томата гибрида Кунеро при обработке бактериями-антагонистами и инокуляции Clavibacter michiganensis. Показано угнетающее действие изолятов бактерий-антагонистов на Botrytis cinerea и представителей рода Fusarium

Energetic cooperation via ion-permeable junctions in mixed animal cell cultures

AbstractLow ouabain concentration (1 × 10−4 M) is shown to decrease intracellular K+ (K+in) and to increase intracellular Na+ (Na+in) in human fibroblast cell cultures. The same ouabain concentration was without effect upon K+in ad Na+in in rodent cultures such as BHK-21, mouse fibroblasts and rat glyoma C6 cells. K+in and Na+in in the mixed cultures of human and BHK-21 fibroblasts or human and mouse fibroblasts were found to be resistant to 1 × 10−4 M ouabain whereas that of the mixtures of human and rat glyoma C6 cells proved to be ouabain-sensitive. The gap-junction-mediated dye transfer was revealed between human and BHK-21 cells. Such an effect was very small in the human-C6 cell mixed culture. It is concluded that cells with active ion pumps can support the maintenance of K+ and Na+ gradients in cells with inactive pumps, provided that effective ion transport via gap junctions takes place

Extremely broadband ultralight thermally-emissive optical coatings

We report the design, fabrication, and characterization of ultralight highly emissive structures with a record-low mass per area that emit thermal radiation efficiently over a broad spectral (2 to 30 microns) and angular (0–60°) range. The structures comprise one to three pairs of alternating metallic and dielectric thin films and have measured effective 300 K hemispherical emissivity of 0.7 to 0.9 (inferred from angular measurements which cover a bandwidth corresponding to 88% of 300K blackbody power). To our knowledge, these micron-scale-thickness structures, are the lightest reported optical coatings with comparable infrared emissivity. The superior optical properties, together with their mechanical flexibility, low outgassing, and low areal mass, suggest that these coatings are candidates for thermal management in applications demanding of ultralight flexible structures, including aerospace applications, ultralight photovoltaics, lightweight flexible electronics, and textiles for thermal insulation