Direct evidence for the role of light‐mediated gas vesicle collapse in the buoyancy regulation of Anabaena flos‐aquae (cyanobacteria)

@inproceedings{Oliver1984DirectEF,
  title={Direct evidence for the role of light‐mediated gas vesicle collapse in the buoyancy regulation of Anabaena flos‐aquae (cyanobacteria)},
  author={R Lawal Oliver and Anthony Walsby},
  year={1984}
}
Quantitative measurements were made of the changes in gas vacuole volume and the major components of cell mass (protein and carbohydrate) on cultures of Anabaenaflos-aquae which lost buoyancy as they were shifted from low to high light intensity. Assuming densities of 1,300 kg. rn-’ for protein and 1,600 for carbohydrate, we calculated the change in ballast brought about by changes in these components and compared them with ballast changes resulting from gas vacuole collapse. We also compared… CONTINUE READING

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