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  • 1
    Electronic Resource
    Electronic Resource
    Effects of amino and sulfhydryl reactive agents on respiration and ethylene production in tomato and apple fruit discs (1982)
    Oxford, UK : Blackwell Publishing Ltd
    Physiologia plantarum 54 (1982), S. 0 
    Details
    ISSN: 1399-3054
    Source: Blackwell Publishing Journal Backfiles 1879-2005
    Topics: Biology
    Notes: We have examined the effects of the enzyme inhibitors 2,4,6-trinitrobenzene sulfonic acid (TNBS) and 5,5′-dithiobis-2-nitrobenzoic acid (DTNB) on ethylene and CO2 production in apple and tomato fruit discs. In the past these inhibitors have been used to inhibit membrane bound enzyme systems in various animal tissues. The amino reactive inhibitor TNBS was shown to decrease ethylene production in tomato discs without affecting rates of respiration; similar results were obtained with apple. The effects of the sulfhydryl reactive inhibitor DTNB were not as clearcut as TNBS. There was little effect of DTNB on ethylene production in tomato discs, however, in apple discs ethylene production was significantly reduced. DTNB also reduced the respiration rate in apple discs, although not to the same extent as ethylene production. The inhibition of DTNB was reversed by a brief treatment with dithioerythritol. The results indicate that ethylene production takes place at the cell surface.
    Type of Medium: Electronic Resource
    URL: http://dx.doi.org/10.1111/j.1399-3054.1982.tb00267.x
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    Ethylene and ethane evolution during cold acclimation and deacclimation of ponderosa pine (1991)
    Canadian Science Publishing
    Details
    Publication Date: 1991-05-01
    Description: Greenhouse container-grown ponderosa pine (Pinusponderosa var. scopulorum Engelm.) were cold acclimated and deacclimated in growth chambers during a 19-week regime. Seedling cold hardiness, bud dormancy, and ethylene and ethane evolution from excised needles were measured weekly. Ethylene and ethane evolution and the ethane/ethylene ratio declined from bud set to bud break and did not parallel changes in cold hardiness. Large standard errors of the ethylene evolution means made detecting statistical differences over time difficult. Significant deviations in the ethane evolution means were observed, however, and indicated a sharp decrease and recovery at the start of cold acclimation and a peak at the start of deacclimation. The ethane/ethylene ratio accentuated the declining trend from bud set to bud break and the two sharp deviations in the trend at the start of acclimation and deacclimation.
    Print ISSN: 0045-5067
    Electronic ISSN: 1208-6037
    Topics: Agriculture, Forestry, Horticulture, Fishery, Domestic Science, Nutrition
    Published by Canadian Science Publishing
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