Is bioconvection enhancing bacterial growth in quiescent environments?

I. Jánosi, A. Czirók, D. Silhavy, András Holczinger

Research output: Article

15 Citations (Scopus)

Abstract

Bioconvection is an intriguing pattern-forming phenomenon driven by the swimming activity of various aquatic microorganisms. It is generally assumed that bioconvection has a positive effect on the entire microbial population by carrying oxygen into deep layers of non-aerated suspensions. In order to examine the presence of such a biological benefit, we analysed the correlation between bioconvective pattern formation and population growth of several Bacillus subtilis and Bacillus licheniformis strains under nonaerated conditions. Bioconvection is a robust phenomenon, we observed its development in numerous cultures of various strains and growth phases. Nevertheless, evaluation of the data has not revealed detectable positive effects on population growth, questioning the potential biological relevance of bioconvection in natural habitats.

Original languageEnglish
Pages (from-to)525-531
Number of pages7
JournalEnvironmental Microbiology
Volume4
Issue number9
DOIs
Publication statusPublished - szept. 2002

Fingerprint

Population Growth
microbial growth
population growth
Bacillus licheniformis
Growth
Bacillus subtilis
Ecosystem
Suspensions
microorganism
Oxygen
microorganisms
oxygen
habitat
habitats
Population
effect
evaluation

ASJC Scopus subject areas

  • Environmental Science(all)
  • Microbiology
  • Applied Microbiology and Biotechnology

Cite this

Is bioconvection enhancing bacterial growth in quiescent environments? / Jánosi, I.; Czirók, A.; Silhavy, D.; Holczinger, András.

In: Environmental Microbiology, Vol. 4, No. 9, 09.2002, p. 525-531.

Research output: Article

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