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Passage of hæmoglobin from blood into eggs of daphnia

Passage of hæmoglobin from blood into eggs of daphnia

Passage of hæmoglobin from blood into eggs of daphnia

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ABSTRACT IT is known that the amount of hæmoglobin dissolved in the blood of _Daphnia_ varies inversely with the oxygen content of the water in which the animals live. The changes in concentration of the hæmoglobin have been studied by a quantitative method which allows measurements to be made on a single _Daphnia_ : the colour of the animal‘s blood is compared under the microscope with known dilutions of human blood1. In the course of further work involving the use of this method it was noticed that parthenogenetic females with eggs in the brood pouch have less hæmoglobin in their blood than those with embryos in the pouch. The difference is greatest in populations producing numerous young. Access through your institution Buy or subscribe This is a preview of subscription content, access via your institution ACCESS OPTIONS Access through your institution Subscribe to this journal Receive 51 print issues and online access $199.00 per year only $3.90 per issue Learn more Buy this article * Purchase on SpringerLink * Instant access to full article PDF Buy now Prices may be subject to local taxes which are calculated during checkout ADDITIONAL ACCESS OPTIONS: * Log in * Learn about institutional subscriptions * Read our FAQs * Contact customer support SIMILAR CONTENT BEING VIEWED BY OTHERS EVOLUTIONARY CONSERVATION OF A REGULATIVE PATHWAY OF ERYTHROPOIESIS IN POIKILOTHERMIC VERTEBRATES Article Open access 28 February 2022 MORPHOLOGICAL STUDIES ON THE PREHATCHING DEVELOPMENT OF THE GLANDULAR STOMACH OF JAPANESE QUAILS USING LIGHT, ELECTRON, AND FLUORESCENT MICROSCOPY Article Open access 23 October 2023 MORPHOLOGICAL, CYTOCHEMICAL AND ULTRASTRUCTURAL ASPECTS OF BLOOD CELLS IN FRESHWATER STINGRAY SPECIES IN THE MIDDLE RIO NEGRO BASIN OF AMAZONIAN BRAZIL Article Open access 03 August 2021 REFERENCES * Fox, H. Munro, _Proc. Roy. Soc._, B, 135, 195 (1948). ADS  CAS  Google Scholar  * Teissier, G., _C.R. Soc. Biol., Paris_, 109, 813 (1932). Google Scholar  * Svedberg, T., and Eriksson-Quensel, I.-B., _J. Amer. Chem. Soc._, 56, 1700 (1934). Article  Google Scholar  * Fraser, D. T., Jukes, T. H., Branion, H. D., and Halpern, K. C., _J. Immunol._, 26, 437 (1934). CAS  Google Scholar  * Andrewes, C. H., _J. Path, and Bact._, 48, 225 (1939). Article  Google Scholar  Download references AUTHOR INFORMATION AUTHORS AND AFFILIATIONS * Bedford College, University of London, ELISABETH I. B. DRESEL Authors * ELISABETH I. B. DRESEL View author publications You can also search for this author inPubMed Google Scholar RIGHTS AND PERMISSIONS Reprints and permissions ABOUT THIS ARTICLE CITE THIS ARTICLE DRESEL, E. Passage of Hæmoglobin from Blood into Eggs of _Daphnia_. _Nature_ 162, 736–737 (1948). https://doi.org/10.1038/162736b0 Download citation * Issue Date: 06 November 1948 * DOI: https://doi.org/10.1038/162736b0 SHARE THIS ARTICLE Anyone you share the following link with will be able to read this content: Get shareable link Sorry, a shareable link is not currently available for this article. Copy to clipboard Provided by the Springer Nature SharedIt content-sharing initiative

ABSTRACT IT is known that the amount of hæmoglobin dissolved in the blood of _Daphnia_ varies inversely with the oxygen content of the water in which the animals live. The changes in


concentration of the hæmoglobin have been studied by a quantitative method which allows measurements to be made on a single _Daphnia_ : the colour of the animal‘s blood is compared under the


microscope with known dilutions of human blood1. In the course of further work involving the use of this method it was noticed that parthenogenetic females with eggs in the brood pouch have


less hæmoglobin in their blood than those with embryos in the pouch. The difference is greatest in populations producing numerous young. Access through your institution Buy or subscribe


This is a preview of subscription content, access via your institution ACCESS OPTIONS Access through your institution Subscribe to this journal Receive 51 print issues and online access


$199.00 per year only $3.90 per issue Learn more Buy this article * Purchase on SpringerLink * Instant access to full article PDF Buy now Prices may be subject to local taxes which are


calculated during checkout ADDITIONAL ACCESS OPTIONS: * Log in * Learn about institutional subscriptions * Read our FAQs * Contact customer support SIMILAR CONTENT BEING VIEWED BY OTHERS


EVOLUTIONARY CONSERVATION OF A REGULATIVE PATHWAY OF ERYTHROPOIESIS IN POIKILOTHERMIC VERTEBRATES Article Open access 28 February 2022 MORPHOLOGICAL STUDIES ON THE PREHATCHING DEVELOPMENT OF


THE GLANDULAR STOMACH OF JAPANESE QUAILS USING LIGHT, ELECTRON, AND FLUORESCENT MICROSCOPY Article Open access 23 October 2023 MORPHOLOGICAL, CYTOCHEMICAL AND ULTRASTRUCTURAL ASPECTS OF


BLOOD CELLS IN FRESHWATER STINGRAY SPECIES IN THE MIDDLE RIO NEGRO BASIN OF AMAZONIAN BRAZIL Article Open access 03 August 2021 REFERENCES * Fox, H. Munro, _Proc. Roy. Soc._, B, 135, 195


(1948). ADS  CAS  Google Scholar  * Teissier, G., _C.R. Soc. Biol., Paris_, 109, 813 (1932). Google Scholar  * Svedberg, T., and Eriksson-Quensel, I.-B., _J. Amer. Chem. Soc._, 56, 1700


(1934). Article  Google Scholar  * Fraser, D. T., Jukes, T. H., Branion, H. D., and Halpern, K. C., _J. Immunol._, 26, 437 (1934). CAS  Google Scholar  * Andrewes, C. H., _J. Path, and


Bact._, 48, 225 (1939). Article  Google Scholar  Download references AUTHOR INFORMATION AUTHORS AND AFFILIATIONS * Bedford College, University of London, ELISABETH I. B. DRESEL Authors *


ELISABETH I. B. DRESEL View author publications You can also search for this author inPubMed Google Scholar RIGHTS AND PERMISSIONS Reprints and permissions ABOUT THIS ARTICLE CITE THIS


ARTICLE DRESEL, E. Passage of Hæmoglobin from Blood into Eggs of _Daphnia_. _Nature_ 162, 736–737 (1948). https://doi.org/10.1038/162736b0 Download citation * Issue Date: 06 November 1948 *


DOI: https://doi.org/10.1038/162736b0 SHARE THIS ARTICLE Anyone you share the following link with will be able to read this content: Get shareable link Sorry, a shareable link is not


currently available for this article. Copy to clipboard Provided by the Springer Nature SharedIt content-sharing initiative