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The origin of the membrane envelope surrounding the bacteria and bacteroids and the presence of glycogen in clover root nodules

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Summary

Thin sections of clover nodules were examined by electron microscopy. The emergence of the bacteria from the infection thread was found to occur by a process of phagocytosis. No evidence was found, using glutar-aldehyde-osmium as a fixative, that there is any connection between the membrane envelope and the endoplasmic reticulum.

Electron dense granules, previously observed in clover nodule bacteria, were identified as glycogen granules. These glycogen granules accumulated in bacteria and bacteroids in some ineffective nodules.

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  1. Botany Department, University of Edinburgh, Edinburgh, UK

    R. O. D. Dixon

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  1. R. O. D. Dixon
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Dixon, R.O.D. The origin of the membrane envelope surrounding the bacteria and bacteroids and the presence of glycogen in clover root nodules. Archiv. Mikrobiol. 56, 156–166 (1967). https://doi.org/10.1007/BF00408766

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  • DOI: https://doi.org/10.1007/BF00408766

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