1887

Abstract

SUMMARY: The air in three Jamaican banana plantations was sampled from 20 July 1960 to 15 April 1961 with a Hirst spore trap. Spores of Nigrospora were regular components of the air-spora. They exhibited a regular and sharply defined diurnal periodicity, rapid liberation of spores starting at about 07.00 hr. and reaching a peak between 08.00 and 10.00 hr.; very few spores were trapped during the night. This is consistent with the fact that spore discharge occurs only under conditions of decreasing vapour pressure. Rainfall and under-tree irrigation usually resulted in an appreciable increase in atmospheric content of Nigrospora spores. These high concentrations were maintained for 2-4 days before decreasing to characteristically low dry weather values. The highest daily mean concentration recorded was 1350 spores/m., an estimate of c. 14,000/m. being obtained at 08.00 hr. on the same day.

Loading

Article metrics loading...

/content/journal/micro/10.1099/00221287-26-2-343
1961-10-01
2024-12-05
Loading full text...

Full text loading...

/deliver/fulltext/micro/26/2/mic-26-2-343.html?itemId=/content/journal/micro/10.1099/00221287-26-2-343&mimeType=html&fmt=ahah

References

  1. Cammack R. H. 1955; Seasonal changes in three common constituents of the air spora in southern Nigeria.. Nature, Lond. 176:1270
    [Google Scholar]
  2. Gregory P. H., Hirst J. M. 1957; The summer air-spora at Rothamsted in 1952. J. gen. Microbiol. 17:135
    [Google Scholar]
  3. Gregory P. H., Sreeramulu T. 1958; Air spora of an estuary.. Trans. Brit, mycol. Soc. 41:145
    [Google Scholar]
  4. Gregory P. H., Stedman O. J. 1958; Spore dispersal in Ophiobolus graminis and other fungi of cereal foot rots.. Trans. Brit, mycol. Soc. 41:449
    [Google Scholar]
  5. Hirst J. M. 1952; An automatic volumetric spore trap.. Ann. appl. Biol. 39:257
    [Google Scholar]
  6. Hirst J. M. 1953; Changes in atmospheric spore content: diurnal periodicity and the effects of weather.. Trans. Brit, mycol. Soc. 36:375
    [Google Scholar]
  7. Hirst J. M., Storey I. F., Ward W. C., Wilcox H. J. 1955; The origin of apple scab epidemics in the Wisbech area in 1953 and 1954.. Plant Path. 4:91
    [Google Scholar]
  8. Mason E. W. 1927; On species of the genus Nigrospora recorded on Monocotyledons.. Trans. Brit, mycol. Soc 12:152
    [Google Scholar]
  9. Mason E. W. 1933; Annotated account of fungi received at the Imperial Mycological Institute.. List II, Fasc. 2. I.M.I. Mycol. Paper, No. 2
    [Google Scholar]
  10. Meredith D. S. 1961a; Fruit-spot (‘speckle’) of Jamaican bananas caused by Deightoniella torulosa (Syd.) Ellis. I. Symptoms of disease and studies on pathogenicity Trans. Brit, mycol. Soc. 44:95
    [Google Scholar]
  11. Meredith D. S. 1961b; Fruit-spot (‘ speckle ’) of Jamaican bananas caused by Deighton-iella torulosa (Syd.) Ellis. II. Factors affecting spore germination and infection Trans. Brit, mycol. Soc 44:265
    [Google Scholar]
  12. Meredith D. S. 1961c; Fruit-spot (‘speckle ’) of Jamaican bananas caused by Deightoniella torulosa (Syd.) Ellis. III. Spore formation, liberation and dispersal Trans. Brit, mycol. Soc 44:391
    [Google Scholar]
  13. Meredith D. S. 1961d; Fruit-spot (‘speckle’) of Jamaican bananas caused by Deighton-iella torulosa (Syd.) Ellis. IV. Further observations on spore dispersal Ann. appl. Biol 49:488
    [Google Scholar]
  14. Meredith D. S. 1961e; Nigrospora sp. and Botryodiplodia theobromae Pat. in the air of a Jamaican banana plantation. Nature, Lond. 189:555
    [Google Scholar]
  15. Simmonds J. H. 1933; Squirter disease of bananas.. Qd agric. J. 40:98
    [Google Scholar]
  16. Sreeramulu T. 1959; The diurnal and seasonal periodicity of spores of certain plant pathogens in the air.. Trans. Brit, mycol. Soc 42:177
    [Google Scholar]
  17. Ward law C. W. 1935 Diseases of the Banana, 1st ed. London: Macmillan;
    [Google Scholar]
  18. Webster J. 1952; Spore projection in the Hyphomycete Nigrospora sphaerica. New Phytol. 51:229
    [Google Scholar]
/content/journal/micro/10.1099/00221287-26-2-343
Loading
/content/journal/micro/10.1099/00221287-26-2-343
Loading

Data & Media loading...

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