1887

Abstract

SUMMARY: Two partially characterized groups of compounds were isolated from an apple variety (Miller's Seedling) which has polygenic resistance to apple scab. These compounds inhibited germination of conidia of and interfered with pigment production in log-phase cultures of the organism. They were more abundant in varieties of apple resistant to scab than in susceptible varieties, and increased in the leaves of resistant varieties after inoculation with conidia. When applied to the foliage of a variety of apple normally susceptible to scab these compounds conferred a measure of protection against the disease. The subject of physiological resistance of plants to microbial attack is discussed.

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/content/journal/micro/10.1099/00221287-53-1-61
1968-08-01
2021-08-03
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References

  1. Cruickshank I. A. M. 1966; Defence mechanism in plants.. Wld Rev. Pest Control 5:161
    [Google Scholar]
  2. Farkas G., Kiraly Z. 1962; Role of phenolic compounds in the physiology of plant diseases and disease resistance.. Phytopath. Z 44:105
    [Google Scholar]
  3. Hignett R. C. 1967; Direct fluorimetry of phenolic compounds on thin layer chromatograms.. J. Chromatog 31:571
    [Google Scholar]
  4. Hignett R. C., Kirkham D. S. 1967; The role of extracellular melanoproteins of Venturia inaequalis in host susceptibility.. J. gen. Microbiol 48:269
    [Google Scholar]
  5. Kirkham D. S. 1957; The significance of polyphenolic metabolites of apple and pear in the host relations of Venturia inaequalis and Venturia pirina.. J. gen. Microbiol 17:491
    [Google Scholar]
  6. Kirkham D. S., Hunter L. D. 1965; Studies of the in vivo activity of esters of o-coumaric and cinnamic acids against apple scab.. Ann. appl. Biol 55:359
    [Google Scholar]
  7. Montgomery H. B. S., Moore M. H. 1937; A laboratory method for testing the toxicity of protective fungicides.. J. Pomol 15:253
    [Google Scholar]
  8. Shay J. R., Williams E. B. 1956; Identification of three physiologic races of Venturia inaequalis.. Phytopathology 46:190
    [Google Scholar]
  9. Walker J. C., Stahmann M. A. 1955; Chemical nature of disease resistance in plants.. A. Rev. Plant Phys 6:351
    [Google Scholar]
  10. Walker J. R. L. 1964; Studies on the enzymic browning of apples. II. Properties of apple polyphenol-oxidase.. Aust. J. Biol. Sci 17:360
    [Google Scholar]
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