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The behaviour of the vacuole on stimulation of yeast cells with fresh media

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Proceedings / Indian Academy of Sciences

Summary

1. The series of changes prior to the dissolution of the vacuole on stimulation with fresh medium has been followed up under dark ground and phase contrast in individual yeast cells.

2. Under dark ground the luminous vacuolar contour disappears from view between 35–60 minutes and the cytoplasm appears free of luminous structures between 75–120 minutes.

3. Under phase contrast the vacuole gradually decreases in size and often breaks up into a number of smaller ones prior to dissolution. The cell appears bereft of any visible inclusions between 100–160 minutes. The time taken by the vacuoles and grains to disappear from view is shorter when the cells are stimulated in a test-tube.

4. The impermanence of the vacuole renders its identification as the nucleus of yeast problematical.

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Authors and Affiliations

  1. Cytogenetics Laboratory, Department of Biochemistry, Indian Institute of Science, Bangalore-3

    N. V. Aswathanarayana

Authors
  1. N. V. Aswathanarayana
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Additional information

Communicated by Dr. M. K. Subramaniam,f.a.sc.

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Aswathanarayana, N.V. The behaviour of the vacuole on stimulation of yeast cells with fresh media. Proc. Indian Acad. Sci. 47, 225–232 (1958). https://doi.org/10.1007/BF03051565

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  • DOI: https://doi.org/10.1007/BF03051565

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