Interspecific growth regulation in species succession through Vitamin B12 competitive inhibition
- 1 January 1982
- journal article
- research article
- Published by Oxford University Press (OUP) in Journal of Plankton Research
- Vol. 4 (1) , 41-46
- https://doi.org/10.1093/plankt/4.1.41
Abstract
The growth response of Skeletonema costatum to vitamin B12 was competitively inhibited by exudate from either Gonyaulax tamarensis or Cyclotella cryptica at vitamin concentrations and cell densities possible in the aquatic environment. Both species produce sufficient quantities of the inhibitor to suggest that it is an important ecological [allelopathic] factor affecting species composition. Although the exact chemical structure is not known, it has a high MW as determined by ultra-filtration and can be denatured by autoclaving in buffered media at pH 7.6.This publication has 0 references indexed in Scilit: