Cold treatment: an effective post‐harvest disinfestation treatment for Bactrocera tryoni (Diptera: Tephritidae) in ‘gold3’ kiwifruit

A range of dosages of methyl bromide used according to different chamber and fru:. I+ temperatures, preceded, unaccompanied or followed by cold treatment was found effective in disinfesting apples of the light-brown apple moth, Epiphyas postvittana (Walker), in Tasmania, 1972-1 974. Fumigations were in 1.1 m3 and 14.3 m3 chambers, for 2 or 2+hours, loaded to 40 or 80 per cent of their capacities, and cold storage was for 21 days at 0�C. The disinfestation treatments were tested on apples artificially infested with neonate and fourth instar larvae and on a field line of naturally infested fruit; the onset of fumigation effects on fourth instar larvae in artificial medium was also determined.

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Reduction of Post-Harvest Injuries Caused by Drosophila suzukii in Some Cultivars of Sweet Cherries Using a High Carbon Dioxide Level and Cold Storage

Insects ◽

10.3390/insects12111009 ◽

2021 ◽

Vol 12 (11) ◽

pp. 1009

Author(s):

Manal Mostafa ◽

Abir Ibn Amor ◽

Naouel Admane ◽

Gianfranco Anfora ◽

Giovanni Bubici ◽

...

Keyword(s):

Carbon Dioxide ◽

Cold Storage ◽

Economic Effect ◽

Cold Treatment ◽

Titratable Acidity ◽

Quality Parameters ◽

Drosophila Suzukii ◽

Post Harvest ◽

Environmentally Safe ◽

Carbon Dioxide Co2

Efficient strategies are required in sweet cherry fruits to control the spotted wing drosophila (SWD), Drosophila suzukii, due to its adverse economic effect on farmers. Cold storage (CS) and storage with elevated carbon dioxide (CO2) are environmentally safe approaches for the pest control of stored fresh fruit. These strategies are effective in controlling a wide variety of insect species, without allowing toxic compounds to accumulate. The purpose of this study was to assess the effectiveness of a post-harvest application of CO2 treatment at 50%, cold treatment at 4 °C (CT), and a combination of both (CO2-CT) in controlling the early stages of SWD within four cultivars of freshly harvested cherry fruit, namely “Burlat-Bigarreau”, “Giorgia”, “Ferrovia”, and “Lapins”. In addition, an evaluation of the quality attributes of the cherries (skin firmness, berry firmness, strong soluble material, and titratable acidity) was carried out at harvest and after 10 and 20 days of storage. All treatments significantly reduced the rate of emergence of SWD when compared to the control (untreated cherry at 24 °C), and 100% SWD mortality was obtained in Burlat-Bigarreau (CO2-CT). In addition, over the entire storage time, the quality parameters were preserved in the samples stored at 4 °C and in the samples with combined treatments in comparison with the control.

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The cold treatment of steel

Journal of the Institution of Production Engineers ◽

10.1049/jipe.1949.0002 ◽

1949 ◽

Vol 28 (1) ◽

pp. 21

Author(s):

E.G. Thurlby

Keyword(s):

Cold Treatment

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Colchicine Uptake and Binding by Human Platelets

Thrombosis and Haemostasis ◽

10.1055/s-0038-1651471 ◽

1975 ◽

Vol 34 (03) ◽

pp. 780-794 ◽

Cited By ~ 4

Author(s):

Dianne M Kenney ◽

Francis C Chao ◽

James L Tullis ◽

Gail S Conneely

Keyword(s):

Time Dependence ◽

Incubation Period ◽

Binding Sites ◽

Silicone Oil ◽

Cold Treatment ◽

Human Platelets ◽

Temperature Dependent

SummaryThe uptake and binding of antimitotic alkaloid colchicine has been demonstrated in washed preparations of human platelets. A silicone oil technique was adapted so that both uptake and binding of 14C-colchicine were examined in the same platelet preparations. The time dependence and amount of colchicine taken up and bound by different platelet preparations during a 90 to 120 min incubation period were highly reproducible. Both colchicine uptake and binding by intact platelets, and colchicine binding by preparations of lysed platelets were specific and temperature dependent. Colchicine uptake was slowly reversible. Magnesium and GTP enhanced colchicine binding by lysed platelet preparations but calcium decreased binding.Exposure of platelets to either cold (4° C) or to thrombin, which disrupt platelet microtubules, produced significant increases in colchicine uptake and binding. The thrombin effect was maximal at 37° C and resulted in a greater increase in uptake and binding than that produced by either cold treatment alone or, by cold treatment followed by incubation with thrombin at 37° C. The amount of increase in uptake and binding produced by thrombin was independent of both thrombin (1–5 Units/109 platelets) and colchicine concentrations (1–50 × 10−6M).It is postulated that thrombin may initiate the formation, or make available, colchicine binding sites (microtubule subunits) within platelets.

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