Abstract
EJACULATED spermatozoa cannot be preserved satisfactorily by conventional fixation procedures for electron microscopy. Osmium tetroxide (OsO4) fixation of crude ejaculate consistently produces a variety of artefacts such as separation of the plasma membrane from the acrosome, widening of nuclear vacuoles, erosion of the acrosome, and swelling of mitochondria1–3. These alterations could be the consequence of the rapid destruction of the fixative by the proteins of the seminal plasma. Similar results are obtained whenever the semen is washed either in salt solutions3,4 or in other media5–7 before osmium tetroxide fixation. In these cases, the structural alterations of the sperm are probably caused by osmotic imbalances. Fixation with glutaraldehyde is also unsuccessful in that it is associated with the typical artefacts of this fixative (our unpublished work).
Similar content being viewed by others
References
Birch-Andersen, A., and Blom, E., Nature, 199, 201 (1963).
Nicander, L., and Bane, A., Z. Zellforsch., 72, 496 (1966).
Bedford, J. M., J. Reprod. Fert., 7, 221 (1964).
Hadek, R., J. Ultrastruct. Res., 8, 161 (1963).
Ånberg, Å., Acta Obstet. Gynec. Scand., 36, Suppl. 2 (1957).
Saacke, R. G., and Almqvist, J. O., Amer. J. Anat., 115, 143 (1964).
Saacke, R. G., and Almqvist, J. O., Amer. J. Anat., 115, 163 (1964).
Zamboni, L., and De Martino, C., J. Cell. Biol. (in the press).
Karlsson, V., and Schultz, R. L., J. Ultrasruct. Res., 12, 160 (1965).
Zetterqvist, H., thesis, Karolinska Inst., Stockholm (1956).
Author information
Authors and Affiliations
Rights and permissions
About this article
Cite this article
STEFANINI, M., MARTINO, C. & ZAMBONI, L. Fixation of Ejaculated Spermatozoa for Electron Microscopy. Nature 216, 173–174 (1967). https://doi.org/10.1038/216173a0
Issue Date:
DOI: https://doi.org/10.1038/216173a0
- Springer Nature Limited
This article is cited by
-
Impact of Dietary Probiotics on the Immune and Reproductive Physiology of Pubertal Male Japanese Quail (Coturnix coturnix japonica) Administered at the Onset of Pre-Puberty
Probiotics and Antimicrobial Proteins (2024)
-
Effects of Ultraviolet B Radiation on the Function of the Testicles, Expression of Caspase-3 and NOS-2, and the Protective Role of Naringin in Mice
Reproductive Sciences (2024)
-
Abamectin induces mortality, inhibits food consumption, and causes histological changes in the midgut of the velvetbean caterpillar Anticarsia gemmatalis (Lepidoptera: Noctuidae)
Journal of Pest Science (2024)
-
Inhibitory efficacy of tripeptides on trypsin-like activity in soybean caterpillars Anticarsia gemmatalis (Lepidoptera: Erebidae) with dysbiosis
Phytoparasitica (2024)
-
Ashwagandha Diminishes Hippocampal Apoptosis Induced by Microwave Radiation by Acetylcholinesterase Dependent Neuro-Inflammatory Pathway in Male Coturnix coturnix Japonica
Neurochemical Research (2024)