Stimulation of Sexual Reproduction in by Damage Free

Abstract

Summary: Mechanical damage to hyphae of some A compatibility-type spp., by cutting with a cork borer or scalpel, can induce formation of pairs of gametangia followed by oospores. The A compatibility types examined did not respond significantly to damage. Two homothallic species of Phytophthora responded to mechanical damage by forming increased numbers of gametangia. Induction of gametangia in A following damage depends on the composition of the medium. Injury produced by HO or ether also induced sexual reproduction in A It is concluded that the mechanism by which gametangia are induced in A Phytophthora strains by may involve damage and that production of oospores in response to damage may be significant in the survival of Phytophthora.

Loading

Article metrics loading...

/content/journal/micro/10.1099/00221287-84-2-303
1974-10-01
2024-03-29
Loading full text...

Full text loading...

/deliver/fulltext/micro/84/2/mic-84-2-303.html?itemId=/content/journal/micro/10.1099/00221287-84-2-303&mimeType=html&fmt=ahah

References

  1. Ashby S. F. 1922; Oospores in cultures of Phytophthora faberi . Kew Bulletin 1922:257–262
    [Google Scholar]
  2. Ashby S. F. 1929a; Strains and taxonomy of Phytophthora palmivora Butler (P. faberi Maubl). Transactions of the British Mycological Society 14:18–38
    [Google Scholar]
  3. Ashby S. F. 1929b; The production of sexual organs in pure cultures of Phytophthora cinnamomi Rands and Blepharospora cambivora Petri. Transactions of the British Mycological Society 14:260–263
    [Google Scholar]
  4. Brasier C. M. 1971; Induction of sexual reproduction in single A2 isolates of Phytophthora species by Trichoderma viride . Nature New Biology 231:283
    [Google Scholar]
  5. Brasier C. M. 1972; Observations on the sexual mechanism in Phytophthora palmivora and related species. Transactions of the British Mycological Society 58:237–251
    [Google Scholar]
  6. Dennis C., Webster J. 1971; Antagonistic properties of species groups of Trichoderma. II. Production of volatile antibiotics. Transactions of the British Mycological Society 57:41–48
    [Google Scholar]
  7. Galindo A. J., Gallegly M. E. 1960; The nature of sexuality in Phytophthora infestans . Phytopathology 50:123–128
    [Google Scholar]
  8. Haasis F. A., Nelson R. R. 1963; Studies on the biological relationships of species of Phytophthora as measured by oospore formation in intra- and inter-specific crosses. Plant Disease Reporter 47:705–709
    [Google Scholar]
  9. Hawker L. 1957 The Physiology of Reproduction in Fungi Cambridge University Press;
    [Google Scholar]
  10. Leonard T. J., Stanley D. 1973; Induction of haploid fruiting by mechanical injury in Schizophyllum commune . Mycologia 65:809–822
    [Google Scholar]
  11. Mahadevan P. R., Mahadkar U. R. 1970; Role of enzymes in growth and morphology of Neurospora crassa: cell-wall-bound enzymes and their possible role in branching. Journal of Bacteriology 101:941–947
    [Google Scholar]
  12. Pratt R. G., Mitchell J. E. 1973; Differential effects of cholesterol in mating thalli of Pythium sylvaticum and Phytopthora capsici . Canadian Journal of Botany 51:595–599
    [Google Scholar]
  13. Reeves R. J., Jackson R. M. 1972; Induction of Phytophthora cinnamomi oospores in soil by Trich derma viride. Transactions of the British Mycological Society 59:156–159
    [Google Scholar]
  14. Royle D. J., Hickman C. J. 1964; Observations on Phytophthora cinnamomi . Canadian Journal Of Botany 42:311–318
    [Google Scholar]
  15. Savage E. J., Clayton C. W., Hunter J. H., Brenneman J. A., La viola C., Gallegly M. E. 1968; Homothallism, heterothallism and inter-specific hybridization in the genus Phytophthora . Phytopathology 58:1004–1021
    [Google Scholar]
  16. Smoot J. J., Gough F. J., Lamey H. A., Eichenmuller J. J., Gallegly M. E. 1958; Production and germination of oospores of Phytophthora infestans . Phytopathology 48:165–171
    [Google Scholar]
  17. Thomas D., Mullins J. T. 1967; Role of enzymatic wall softening in plant morphogenesis: hormonal induction in Achlya . Science, New York 156:84–85
    [Google Scholar]
  18. Zentmyer G. A. 1952; A substance stimulating sexual reproduction in Phytophthora cinnamomi . Phytopathology 42:24
    [Google Scholar]
http://instance.metastore.ingenta.com/content/journal/micro/10.1099/00221287-84-2-303
Loading
/content/journal/micro/10.1099/00221287-84-2-303
Loading

Data & Media loading...

Most cited Most Cited RSS feed