Related Experiment Video
Updated: May 16, 2026

Autofluorescence Imaging to Evaluate Red Algae Physiology
Published on: February 17, 2023
No effect of red light on oxygen uptake enhanced by blue light in chlorella
1Fakultät für Biologie, Universität Bielefeld, Postfach 8640, D-4800 Bielefeld, West Germany.
Abstract:
In chlorophyll-free, mutated Chlorella cells the respiratory oxygen consumption is enhanced upon irradiation with blue light. Since for other blue light-dependent reactions in plants modifying effects of red light have been reported, we tested the blue light-enhanced oxygen uptake of Chlorella after preceding, or during simultaneous, application of red light of different wavelengths and intensities. There was no measurable alteration. Also prior exposure to blue light did not create any measurable sensitivity to red light compared with darkness. The data obtained give no indication of an involvement of a red light absorbing pigment (e.g. phytochrome) in the respiration of Chlorella.
More Related Videos
06:20Evaluation of the Effect of Growth Factors on Chlorophylls a and b Production from Microalgae
Published on: October 25, 2024
08:16Method for the Assessment of Effects of a Range of Wavelengths and Intensities of Red/near-infrared Light Therapy on Oxidative Stress In Vitro
Published on: March 21, 2015
Related Concept Videos
Testing a Claim about Mean: Known Population SD
Estimating a population mean requires the samples to be distributed normally. The data should be collected from the randomly selected samples having no sampling bias. The sample size needed to be higher than 30, and most importantly, the population standard deviation should be already known.
In most realistic situations, the population standard deviation is often unknown, but in rare circumstances, when it...
Anoxygenic Photosynthesis
Channel Rhodopsins
Rhodopsins belong to the family of cell surface proteins called G-protein coupled receptors,...
Oxygenic Photosynthesis