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    • Keywords


      Firefly; emission spectrum; FWHM; time-resolved spectrum; pulse width; pulse duration

    • Abstract


      We recorded the in vivo emission and time-resolved spectra of the firefly Luciola praeusta Kiesenwetter 1874 (Coleoptera : Lampyridae : Luciolinae). The emission spectrum shows that the full width at half maximum (FWHM) value for this particular species is 55 nm, which is significantly narrower than the in vivo half-widths reported till now. The time-resolved spectrum reveals that a flash of about 100 ms duration is, in fact, composed of a number of microsecond pulses. This suggests that the speed of the enzyme-catalysed chemiluminescence reaction in the firefly for the emission of light is much faster than was previously believed.

    • Author Affiliations


      A Gohain Barua1 S Hazarika1 N M Saikia1 G D Baruah2

      1. Department of Physics, Gauhati University, Guwahati 781 014, India
      2. Department of Physics, Dibrugarh University, Dibrugarh 786 004, India
    • Dates

  • Journal of Biosciences | News

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      Posted on July 25, 2019

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