Ice-Nucleating Active Bacteria Decrease the Cold-Hardiness of Stored Grain Insects
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چکیده
منابع مشابه
Reduction of insect cold-hardiness using ice-nucleating active fungi and surfactants
The supercooling point (SCP) of an insect model, the lady beetle Hippodamia convergens Guérin-Menéville (Coleoptera, Coccinellidae) was markedly elevated by treatment with aqueous suspensions of the filamentous, ice nucleation active (INA) fungi Fusarium avenaceum and slightly elevated by Fusarium acuminatum. Addition of the surfactant Tween 80 to the fungal suspensions further reduced the supe...
متن کاملInsect Cold-hardiness and Ice Nucleating Active Microorganisms Including Their Potential Use for Biological Control
Since most insects are unable to survive internal ice formation a key factor in their overwintering survival is the regulation of the temperature at which they spontaneously freeze. To enhance their supercooling capacity overwintering insects eliminate endogenous ice nucleators, accumulate low-molecular-weight polyols and sugars, and synthesize hemolymph antifreeze proteins. A number of freeze-...
متن کاملTopical application of ice-nucleating-active bacteria decreases insect cold tolerance.
The majority of overwintering insects avoid lethal freezing by lowering the temperature at which ice spontaneously nucleates within their body fluids. We examined the effect of ice-nucleating-active bacteria on the cold-hardiness of the lady beetle, Hippodamia convergens, a freeze-intolerant species that overwinters by supercooling to ca. -16 degrees C. Topical application of the ice-nucleating...
متن کاملIngestion of Ice-nucleating Active Bacteria Increases the Supercooling Point of the Lady Beetle Hippodamia Convergens
Regulation of the temperature at which insects freeze is a critical factor in their overwintering survival. Although the role of ice-nucleating active bacteria in promoting frost-damage in plants is well known, their interaction with other organisms has not been described. In winter. many freeze-susceptible insects avoid freezing by lowering the temperature at which their body fluids spontaneou...
متن کاملTrapping and Interpreting Captures of Stored Grain Insects
This chapter provides an overview of insect trapping and interpretation of trap captures for stored-product protection in bulk grain, food processing, and retail environments. The use of traps for detection, monitoring, and population estimation requires considerable knowledge of insect biology and appropriate trap use. Trap use is essential for development of meaningful integrated pest managem...
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ژورنال
عنوان ژورنال: Journal of Economic Entomology
سال: 1992
ISSN: 1938-291X,0022-0493
DOI: 10.1093/jee/85.2.371