The Heat Shock Response in Soybean Seedlings
The response of a wide array of organisms to heat shock (hs) has been studied (e.g. Ritossa, 1962; Kelley and Schlesinger, 1978; McAlister and Finkelstein, 1980; Barnett et al., 1980; Guttman et al., 1980; Neidhardt and Van Bogelen, 1981; Key et al., 1981, 1982; Baszczynski et al., 1982; Scharf and Nover, 1982; Altschuler and Mascarenhas, 1982), with Drosophila serving as a model for this work (see Ashburner and Bonner, 1979). In general when the growth temperature is elevated a few degrees (± 10°) above “normal”, there is a marked decrease in most normal protein synthesis and turn on of synthesis of a new set of proteins (heat shock proteins or hsp’s). This dramatic switch in pattern of protein synthesis results from changes in both mRNA production and mRNA utilization in Drosophila (e.g. Ashburner and Bonner, 1979) and in plants (Key, et al., 1981 and Schöffl and Key, 1982). While there is no definitive information on the role or functions of the hsp’s, the available evidence generally supports the view that hsp’s afford some protection or “thermal tolerance” to the organism (e.g. Mitchell et al., 1979; Loomis and Wheeler, 1980, 1982; McAlister and Finkelstein, 1980; Key et al., 1982; Li and Werb, 1982).
KeywordsHeat Shock Heat Shock Protein Heat Shock Response Thermal Tolerance Soybean Seedling
Unable to display preview. Download preview PDF.
- Guttman, S. D., Glover, C V.C. Allis, C. D., and Gorovsky, M. A., 1980, Heat shock, deciliation and release from anoxia induce the synthesis of the same set of polypeptides in starved T. pyriformis, Cell, 22:299. Kelley, P., and Schlesinger, M., 1978, The effect of amino acid analogues and heat shock on gene expression in chick embryo fibroblasts, Cell, 15:1277.Google Scholar
- Key, J. L., Lin, C. Y., Ceglarz, E., and Schöffl, F., 1982, The heat shock response in plants, in “Heat Shock: From Bacteria to Man.” M. Schlesinger, M. Ashburner and A. Tissières, eds., Cold Spring Harbor Laboratory. In press.Google Scholar
- Li, G. C., and Werb, Z., 1982, Correlation between synthesis of heat shock proteins and development of thermotolerance in Chinese hamster fibroblasts, Proc. Natl. Acad. Sei., 79:3218. Loomis, W. F., and Wheeler, S., 1980, Heat shock response of Dictyostelium, Dev. Biol., 79:399.Google Scholar