1887

Abstract

SUMMARY: The inhibitory effect of low temperature (. 10°) on initiation and early development of zygospores of is less severe in mature cultures (in which numerous zygospores have already been formed before transfer to the low temperature) than in young ones. The severe effect of low temperature on immature cultures is not counteracted by any of a number of known growth substances, by extracts of mature mycelium and zygospores, or by used culture media. The effect of mature cultures in counteracting low temperature inhibition of zygospore production in young ones is able to pass across a gap of 5 mm. between the cultures and must therefore be due to a volatile substance (or substances) produced by the mature mycelium. By the use of small chambers which allow young test cultures to be kept at 10° while a stream of air from mature ones growing at 20° passes over them, it is confirmed that the active factor is volatile. This substance is not carbon dioxide or ammonia and is basic in nature. Its probable identity is discussed and comparison is made with some other volatile substances reported to influence growth and development of fungi.

Loading

Article metrics loading...

/content/journal/micro/10.1099/00221287-24-1-155
1961-01-01
2023-02-08
Loading full text...

Full text loading...

/deliver/fulltext/micro/24/1/mic-24-1-155.html?itemId=/content/journal/micro/10.1099/00221287-24-1-155&mimeType=html&fmt=ahah

References

  1. Banbury G. H. 1954; Physiological studies in the Mucorales. III. The zygotropism of zygophores of Mucor mucedo Brefeld. J. exp. Bot 6:235
    [Google Scholar]
  2. Callen E. O. 1940; Morphology, cytology and sexuality of the homothallic Rhizopus sexualis (Smith) Callen. Ann. Bot., Land. N.S 4:791
    [Google Scholar]
  3. Hawker L. E. 1957 The Physiology of Reproduction in Fungi Cambridge Monographs in Experimental Biology: Cambridge University Press;
    [Google Scholar]
  4. Hawker L. E., Hepden P. M., Perkins S. M. 1957; The inhibiting effect of low temperature on early stages of zygospore production in Rhizopus sexualis . J. gen. Microbiol 17:758
    [Google Scholar]
  5. Hepden P. M., Folkes B. F. 1960; A possible relationship between nucleic acid metabolism and the initiation of zygospores of Rhizopus sexualis . Nature; Lond: 185254
    [Google Scholar]
  6. McTeague D. M., Hutchinson S. A., Reed R. I. 1959; Spore germination in Agaricus campestris L. ex. Fr. Nature; Lond: 1831736
    [Google Scholar]
  7. Robbins W. J., Kavanagh F. 1942; Hypoxanthine, a growth substance for Phycomyces . Proc. nat. Acad. Sci., Wash 28:65
    [Google Scholar]
http://instance.metastore.ingenta.com/content/journal/micro/10.1099/00221287-24-1-155
Loading
/content/journal/micro/10.1099/00221287-24-1-155
Loading

Data & Media loading...

Most cited this month Most Cited RSS feed

This is a required field
Please enter a valid email address
Approval was a Success
Invalid data
An Error Occurred
Approval was partially successful, following selected items could not be processed due to error