THE DIURNAL PATTERN OF DINITROGEN FIXATION BY CYANOBACTERIA <i>IN SITU</i>

MARK S. H. GRIFFITHS, John Gallon, Alan E. Chaplin

New Phytologist · 1987 · 50 citations · 7 references

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Abstract

S ummary The diurnal patterns of cyanobacterial acetylene reduction (nitrogen fixation) and seasonal variations in these patterns were investigated in situ on a salt marsh and in a limestone cave. In the field, the non‐heterocystous species fixed N 2 mainly at night, while heterocystous species fixed N 2 mainly during the day. These basic patterns could be influenced by environmental conditions such as O 2 availability and temperature. No acetylene reduction was observed in December, January or February.

References

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