Decision-making of the benthic diatom Seminavis robusta searching for inorganic nutrients and pheromones.

ABSTRACT: Microorganisms encounter a diversity of chemical stimuli that trigger individual responses and influence population dynamics. However, microbial behavior under the influence of different incentives and microbial decision-making is poorly understood. Benthic marine diatoms that react to sexual attractants as well as to nutrient gradients face such multiple constraints. Here, we document and model behavioral complexity and context-sensitive responses of these motile unicellular algae to sex pheromones and the nutrient silicate. Throughout the life cycle of the model diatom Seminavis robusta nutrient-starved cells localize sources of silicate by combined chemokinetic and chemotactic motility. However, with an increasing need for sex to restore the initial cell size, a change in behavior favor

SUBMITTER: Bondoc KGV 

PROVIDER: S-EPMC6331598 | biostudies-literature | 2019 Feb

REPOSITORIES: biostudies-literature