Isolation of erysodine,erysotrine and hypaphorine fromErythrina suberosa Roxb. seeds

Zusammenfassung Das Vorkommen von Erysotrin wurde erstmals festgestellt, indem aus Samen vonErythrina suberosa Roxb. drei Basen isoliert und als Erysodin, Erysotrin und Hypaphorin identifiziert wurden.

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This work was supported by the University Grants Commission, India.     

Observations on non-specific reactions to tuberculin in sheep and goats withCorynebacterium ovis

Résumé La tuberculine provoque une réaction non-specifique sur les moutons et les chèvres qui sont, soit naturellement, soit artificiellement, infectés avecCorynebacterium ovis.     

Responses of oculomotor nucleus and marginal gyrus in sleep

Résumé Le rétablissement de la réactivité du noyau oculo-moteur et du gyrus marginal pendant le sommeil a été mesuré chez le chat non-immobilisé. Comme paramètre de ce rétablissement on a utilisé le rapport de l'amplitude du second potentiel à celle du premier potentiel induit par stimulation du noyau vestibulaire médian, du colliculus supérieur et du noyau réticulaire oral du pont. On a constaté que le rétablissement de la réactivité à la stimulation du noyau vestibulaire médian diminue pendant le sommeil, ce qui n'est pas le cas des réponses à la stimulation du colliculus supérieur et du noyau réticulaire pontique, ni celui des réponses obtenues pendant l'éveil. On en a conclu que le rôle du noyau vestibulaire médian et du colliculus supérieur dans le mécanisme responsable des mouvements oculaires rapides pendant le sommeil est différent.

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This work was aided by a grant-in-aid from the Indian Council of Medical Research, New Delhi.     

Neurosecretory system and storage of paraldehyde fuchsin positive neurosecretory material in the dorsal aorta in an earwig,Anisolabis annulipes Lucas (Dermaptera: Labiduridae)

Summary Each of the 2 groups of medial neurosecretory cells has 10–12 A and 2–3 B-cells. Each pars intercerebralis lateralis has 3–4 B-cells only. The 2 nervi corporis cardiaci I (NccI) join with the lateral wall of the aorta and Ncc II terminate in corpora cardiaca (Cc). Only 1 corpus allatum is present. The paraldehyde fuchsin positive neurosecretory material is stored in the dorsal aorta and not in the Cc which indicates the neurohaemal nature of the aorta.We are grateful to Prof. U.S. Srivastava for providing laboratory facilities and S.C.S.T. Uttar Pradesh for financial assistance.     

Free amino acid pattern in stressed leaves of two contrasting resistant and susceptible cultivars of chick pea (Cicer arietinum)

Summary Drought resistant cv. C-214 ofCicer arietinum L. showed higher accumulation of alanine, threonine, glutamine, -alanine, arginine, amino butyric acid, valine, leucine, phenylalanine than the susceptible cv. G130 under water stress.     

γ-Glutamyl-transpeptidase in lymphatic tissues ofMastomys natalensis during an infection withAcanthocheilonema viteae

Summary DuringAcanthocheilonema viteae infection, the specific activity of -glutamyltranspeptidase (-GT) increased in peritoneal exudate cells and bone marrow and decreased in lymphnodes ofMastomys natalensis throughout the course of infection. However, though there was an increase in specific activity of -GT in thymus and spleen during the prepatent phase ofA. viteae infection, the level either returned to normal or decreased during the latent phase of infection. A close correlation was observed between the host's immune status duringA. viteae infection and the level of -GT in lymphoid tissues.Communication No. 4535 from Central Drug Research Institute, Lucknow.     

Activation of particle associated rat liver guanine deaminase by lecithin and interferences of lecithin in protein precipitation

Summary Guanine deaminase solubilized from the light mitochondrial fraction of rat liver was activated by lecithin. The activation was proportional to the concentration of lecithin taken in the system. A ratio of 11 between the two constituents (protein and lecithin) was at least necessary for complete precipitation.Acknowledgment. The authors are grateful to Professor P.S.Krishnan, University of Calicut, Calicut, Kerala, for his interest.