Aneuploids in Pearl millet

Zusammenfassung Es wurden von der Nachkommenschaft triploider PerlhirsePennisetum typhoides (2n=14) aneuploide, das heisst einfach-trisome, zweifach-, dreifach- und tetrasome Pflanzen isoliert.     

Effects of placental lesions on foetal growth in rats

Résumé Un état d'insuffisance placentaire a été produit chez la ratte au moyen de lésions électrolytiques effectuées au 17^e jour de gestation. Le poids corporel ainsi que le poids du foie des foetus, au 21^e jour de la grossesse, présentèrent une diminution; tandis que le poids du cerveau en relation à celui du foie avait augmenté. Ces résultats indiquent que les foetus ainsi traités subissent un retardement de croissance par rapport aux témoins de même âge.

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Acknowledgments. The author wishes to thank Dr.D. G. Montemurro for the use of the electrolytic apparatus and Mr.N. Falconer and Mr.J. Krcek for their technical assistance.     

Postischemic ATP levels predict hepatic function 24 hours following ischemia in the rat

Summary Hepatic function was assessed by the aminopyrine breath test (ABT) in male Sprague Dawley rats 24 h after partial hepatic ischemia. ABT decreased progressively to 26.3 (p<0.05) and 19.7% of dose (p<0.05) after 90 and 120 min of ischemia, respectively. ABT at 24 h after injury was correlated to the concentration of ATP in the ischemic lobes 1 h after the onset of reperfusion (r²=0.971) but not to ALT activity in plasma at 1 h (r²=0.391). We conclude that postischemic ATP levels are a better index of subsequent hepatic function than ALT.     

Anatomical identification of the presumed electroreceptors of two air breathing catfishes,Clarias batrachus andHeteropneustes fossilis

Summary Histological preparations for light microscopy have revealed for the first time the structure of the electroreceptor ofClarias batrachus andHeteropneustes fossilis, the 2 Indian air-breathing catfishes. These sensory organs are found to resemble the ampullary organs of many weakly electric and nonelectric electroreceptive teleost.The work was in part supported by grant of SCST (U.P.) during the period 1974–76 which is acknowledged.     

Ion-solvent interaction: Viscosity,apparent molar volume and conductivity of univalent electrolytes in dioxanewater mixtures at different temperatures

Summary The viscosity, apparent molar volume and conductivity of NaCl, KCl, NaBr, KBr, NaNO₃ and KNO₃ solutions at mass fraction of dioxane (10, 20 and 30%)-water mixtures at 30–45°C±0.01°C have been measured. The ions appear to interact appreciably, and the ion-solvent interaction is of the order NO₃ ^–>Br^–>Cl^–.     

Enhancement of virus growth produced by thiols and disulphides

Summary Several thiols and disulphides have been found able both to shorten the latency phase and to increase the growth of several virus strains in cell cultures.This work has been supported by a grant of Consiglio Nazionale delle Ricerche, Roma (Italy).     

Ultrastructure of cytoplasmic hemosiderin inclusion bodies in malignant phagocytic lymphocytes

Zusammenfassung In den lymphoiden Zellen eines an chronischer lymphatischer Leukämie und Lymphosarcoma leidenden Patienten wurden cytoplasmische, Haemosiderin enthaltende und von Einzelmembranen umgebene Einschlusskörper gefunden. Es ist ungewiss, ob diese Erscheinung erhöhter phagocytischer Aktivität oder dem Auftreten anomaler peripherer erythroider Zellen im peripheren Blut zuzuschreiben ist.