Effects of Boron Deficiency on the Chemical Composition of a Marine Diatom
- 1 October 1976
- journal article
- research article
- Published by Oxford University Press (OUP) in Journal of Experimental Botany
- Vol. 27 (5) , 916-921
- https://doi.org/10.1093/jxb/27.5.916
Abstract
Cells of Cylindrotheca fusiformis, a marine pennate diatom, multiplied in complete nutrient medium (containing 0·5 mg l−1 B) with a generation time of 11 h; in a boron-deficient culture medium (0·02 mg l−1 B), the generation time was 90 h. The chemical composition of logarithmically growing cells harvested from each of the two culture conditions was compared in order to assess the effects of boron deficiency on the various chemical fractions. Under conditions of boron deficiency, the concentration of protein, carbohydrate, and RNA was depressed below that of control cells; DNA showed no change, while lipids, phenolic compounds, and unaccounted-for organic fractions were all increased in concentration. The greatest effect was on the phenolic fraction. These results are discussed and related to the published literature on effects of boron deficiency on higher plants.This publication has 2 references indexed in Scilit:
- The Boron Nutrition of the Diatom, Cylindrotheca Fusiformis, Grown on Agar, and the Biological Activity of Some Substituted Phenylboronic AcidsAustralian Journal of Biological Sciences, 1967
- THE DIATOM GENUS CYLINDROTHECA RABENHORSTJournal of the Royal Microscopical Society, 1964