Plant and Soil

, Volume 85, Issue 3, pp 443–445 | Cite as

Absence of nitrogen fixation (acetylene reduction) by procaryotes in nectar of Banksias

  • Gregory J. Barrett
  • Byron B. Lamont
Short Communications

Summary

An earlier hypothesis that blue-green algae in the nectar ofBanksia telmatiaea contribute to the nitrogen economy of the host by fixing N2 was tested. Field and laboratory experiments failed to demonstrate C2H4 production in C2H2-treated containers over extended periods. Soil N was not higher at the end of the flowering season and plants in which flower heads were removed prior to nectar production did not contain less N than the controls.

Key words

Acetylene reduction Banksia telmatiaea Blue-green algae Nectar Nitrogen nutrition 

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References

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    Lamont B 1980 West. Aust. Nat. 7, 193–194.Google Scholar
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    Lamont B 1982 Bot. Rev. 48, 597–689.Google Scholar
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    Lamont B 1983 Plant and Soil 74, 149–152.CrossRefGoogle Scholar
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    Lewis J and Bell D T 1981 Aust. J. Bot. 29, 665–674.Google Scholar
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    Monk Det al. 1981 Aust. J. Bot. 29, 579–592.Google Scholar

Copyright information

© Martinus Nijhoff/Dr W. Junk Publishers 1985

Authors and Affiliations

  • Gregory J. Barrett
    • 1
  • Byron B. Lamont
    • 1
  1. 1.School of BiologyWestern Australian Institute of TechnologyBentleyAustralia

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