1887

Abstract

SUMMARY: Vesicular-arbuscular mycorrhiza were established in in culture by inoculation with Endogone spores. In a medium containing 265 mg. phosphorus (P)/l., as CaHPO and KHPO, infection occurred only when the medium lacked nitrogen (N). In a medium containing only 100 mg. P/l., infection occurred readily in the presence of 0·5 g. KNO/l.

Calcium monohydrogen phosphate, Ca phytate, Na phytate, Fe phytate, phytin, lecithin and DNA were adequate sources of phosphate for both plant and fungus. Ca phytate and DNA greatly stimulated fungal growth, and DNA also stimulated spore formation, in the agar medium. With Na in the medium infections in the root were sparse. Inositol may serve as a carbon source for Endogone.

Mycorrhizal infection occurred with either FeCl or Fe-EDTA in the medium; when so little iron was present that plants grew poorly, there was also little mycorrhizal infection.

Loading

Article metrics loading...

/content/journal/micro/10.1099/00221287-69-2-157
1971-12-01
2024-05-02
Loading full text...

Full text loading...

/deliver/fulltext/micro/69/2/mic-69-2-157.html?itemId=/content/journal/micro/10.1099/00221287-69-2-157&mimeType=html&fmt=ahah

References

  1. Anderson G. 1956; Identification and estimation of soil inositol phosphates. Journal of the Science of Food & Agriculture 7:437–44
    [Google Scholar]
  2. Asher C. J., Loneragan J. F. 1967; Response of plants to phosphate concentration in solution culture. I. Growth and phosphorus content. Soil Science 103:225–33
    [Google Scholar]
  3. Baylis G. T. S. 1967; Experiments on the ecological significance of phycomycetous mycorrhizas. New Phytologist 66:231–43
    [Google Scholar]
  4. Bhatti A. S., Loneragan J. F. 1970; The effect of early superphosphate toxicity on the subsequent growth of wheat. Australian Journal of Agricultural Research 21:881–92
    [Google Scholar]
  5. Clark G. 1914; Phytin and phytic acid. Journal of the Chemical Society 105:535–45
    [Google Scholar]
  6. Cochrane V. W. 1958 Physiology of fungi New York: John Wiley;
    [Google Scholar]
  7. Daft M. J., Nicolson T. H. 1969; Effect of Endogone mycorrhiza on plant growth. II. Influence of soluble phosphate on endophyte and host in maize. New Phytologist 68:945–52
    [Google Scholar]
  8. Greenwood E. A. N., Hallsworth E. G. 1960; Studies on the nutrition of forage legumes. II. Some interactions of calcium, phosphorus, copper and molybdenum on the growth and chemical composition of Trifolium subterraneum l. Plant and Soil 12:97–127
    [Google Scholar]
  9. Jensen H. L. 1942; Nitrogen fixation in leguminous plants. II. Is symbiotic nitrogen fixation influenced by Azotobacter?. Proceedings of the Linnean Society of N.S.W 67:205–12
    [Google Scholar]
  10. Mosse B. 1959; The regular germination of resting spores and some observations on the growth requirements of an Endogone sp. causing vesicular-arbuscular mycorrhiza. Transactions of the British Mycological Society 42:273–86
    [Google Scholar]
  11. Mosse B. 1962; The establishment of vesicular-arbuscularmycorrhiza under aseptic conditions. Journal of General Microbiology 27:509–20
    [Google Scholar]
  12. Mosse B. 1967 Annual Report Rothamsted Experimental Station for 1966 p. 88
    [Google Scholar]
  13. Mosse B. 1971 Annual Report Rothamsted Experimental Station for 1970 p. 89
    [Google Scholar]
  14. Nicolson T. H., Gerdemann J. W. 1968; Mycorrhizal Endogone species. Mycologia 60:313–25
    [Google Scholar]
  15. Nutman P. S. 1949; Nuclear and cytoplasmic inheritance of resistance to infection by nodule bacteria in red clover. Heredity 3:263–91
    [Google Scholar]
http://instance.metastore.ingenta.com/content/journal/micro/10.1099/00221287-69-2-157
Loading
/content/journal/micro/10.1099/00221287-69-2-157
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