• environmental
  • Assays of extracellular enzyme activity in environmental samples typically involve exposing the samples to artificial colorimetric or fluorometric substrates and tracking the rate of substrate hydrolysis. (jove.com)
  • types
  • Spectral absorption peaks of 500 nm and 675 nm, respectively, suggest that M. annularis and M. faveolata contain similar types of chlorophyll and chromatophores. (jove.com)
  • The chromatophores are distributed in the skin, and their types, sizes, densities, and physiological activities affect these colors and patterns. (genetics.org)
  • In fish, up to six chromatophore types (melano-, leuco-, erythro-, xantho-, irido-, and cyanophores) have been identified, and there are two distinctive model species to which molecular genetics can be feasibly applied, the zebrafish and the medaka. (genetics.org)
  • important
  • Results obtained using this laboratory assay are an important prelude to field experiments that rely on the feeding responses of a full complement of potential predators. (jove.com)
  • THE colors and patterns on animal body surfaces are often important for visual communication in the wild and are determined primarily by pigment cells (chromatophores) in vertebrates. (genetics.org)
  • Discriminating the frequency and load of colonizing bacteria can be especially important when screening or characterizing bacterial mutants for colonization phenotypes 21 , 24 . (jove.com)
  • different
  • Many plasmids are available that carry genes encoding proteins that fluoresce at different wavelengths ( i.e. green or red), and conjugation of plasmids from a donor Escherichia coli strain into a recipient bacterial symbiont is successful for a broad range of bacteria. (jove.com)