1887

Abstract

Calcium peroxide, in a formulation with calcium hydroxide, inhibited the growth of fungi and bacteria in liquid shaken culture. The formulation (‘CaO’) was effective against spore germination, but less so against hyphal growth on solid or liquid media. With the exception of Mucor hiemalis, similar amounts of Ca(OH) alone were not effective; the antimicrobial activity of the formulation depends only partly on its alkalinity. Of the fungi tested, had the greatest peroxidase activity and showed most resistance to ‘CaO’ The production of HO and free radicals by ‘CaO’ may in part account for its action.

‘CaO’ increased overall carbon release from axenic wheat seed, especially at 17 and 21% (v/v) O concentrations, but fructose and glucose exudations were inhibited. Total carbohydrate released was not affected. Sucrose exudation was detected from ‘CaO’-treated seed, but not from untreated seed. The major form of carbon released from seeds was not carbohydrate and possibly originated from the seed coat. Although exudates supported substantial fungal and bacterial growth, the antimicrobial properties of the formulation suggest that it has potential as a plant protection chemical.

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/content/journal/micro/10.1099/00221287-129-7-2307
1983-07-01
2021-05-17
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References

  1. Barber D.A. 1967; The effect of microorganisms on the absorption of inorganic nutrients by intact plants. I. Apparatus and culture technique. Journal of Experimental Botany 18:163–169
    [Google Scholar]
  2. Davies W.I.C., Davies J. 1981; Varying the time of spraying with paraquat or glyphosate before direct drilling of grass and clover seeds with and without calcium peroxide. Grass and Forage Science 36:65–69
    [Google Scholar]
  3. Dubois M., Gilles K.A., Hamilton J.K., Rebers P.A., Smith F. 1956; Colorimetric method for determination of sugars and related substances. Analytical Chemistry 28:350–356
    [Google Scholar]
  4. Gussin E.J., Lynch J.M. 1983; Root residues: substrates used by Fusarium culmorum to infect wheat, barley and ryegrass. Journal of General Microbiology 129:271–275
    [Google Scholar]
  5. Harper S.H.T., Lynch J.M. 1981; Effects of fungi on barley seed germination. Journal of General Microbiology 122:55–60
    [Google Scholar]
  6. Loria R., Lacy M.L. 1979; Mechanism of increased susceptibility of bleached pea seeds to seed and seedling rot. Phytopathology 69:573–579
    [Google Scholar]
  7. Lynch J.M., Harper S.H.T. 1974; Formation of ethylene by a soil fungus. Journal of General Microbiology 80:187–195
    [Google Scholar]
  8. Lynch J.M., Pryn S.J. 1977; Interaction between a soil fungus and barley seed. Journal of General Microbiology 103:193–196
    [Google Scholar]
  9. Lynch J.M., Harper S.H.T., Sladdin M. 1981; Alleviation, by a formulation of calcium peroxide and lime, of microbial inhibition of cereal seedling establishment. Current Microbiology 5:27–30
    [Google Scholar]
  10. Matthews S., Whitbread R. 1968; Factors influencing pre-emergence mortality in peas. I. An association between seed exudates and the incidence of pre-emergence mortality in wrinkled-seeded peas. Plant Pathology 17:11–17
    [Google Scholar]
  11. Mcdonough W.T., Chadwick D.L. 1970; Pregerminative leaching losses from seeds. Plant and Soil 32:327–334
    [Google Scholar]
  12. Ogawa M., Ota Y. 1973; The combined use of Calper and Tachigaren for the direct seeding of wetland rice. Nogyo Oyobi Engei 48:1297–1300 (in Japanese)
    [Google Scholar]
  13. Ota Y., Nakayama M. 1971; Utilisation of calcium peroxide for agriculture - as oxygen supplying material. Nogyo Oyobi Engei 46:869–872 (in Japanese)
    [Google Scholar]
  14. Schroth M.N., Cook R.J. 1964; Seed exudation and its influence on pre-emergence damping off of bean. Phytopathology 54:670–673
    [Google Scholar]
  15. Simon E.W. 1974; Phospholipids and plant membrane permeability. New Phytologist 73:377–420
    [Google Scholar]
  16. Simon E.W., Raja Harun R.M. 1972; Leakage during seed imbibition. Journal of Experimental Botany 23:1076–1085
    [Google Scholar]
  17. Sladdin M., Lynch J.M. 1983; Effect of calcium peroxide, lime and other seed dressings on winter wheat establishment under wet conditions. Crop Protection 2:113–119
    [Google Scholar]
  18. Tatum E.H., Lederberg J. 1947; Gene recombination in the bacterium Escherichia coli. Journal of Bacteriology 53:673–684
    [Google Scholar]
  19. Verona O. 1963; Interaction entre la graine en germination et les microorganismes telleriques. Annales de l’Institut Pasteur 105:75–98
    [Google Scholar]
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