Abstract
Annual changes in the brain neurosecretory profile of Poecilobdella viridis in relation to reproductive activity have been investigated. The changes in A cell neurosecretory activities were found to be in strong correlative correspondence with the reproductive programme. Heavy accumulation of neurosecretory material was observed in A cells perikarya during the reproductive period i.e. from March to June, 1975, with enlarged nuclei and during reproductive quiescence i.e. from August, 1974 to January 1975, the neurosecretory activity was low.
Similar content being viewed by others
References
Aros, B. & Vigh, B. 1960. Histology of the neurohormonal apparatus in invertebrates. Acta morph. hung., 9: 13.
Bern, H. A. & Hagadorn, I. R. 1965. In: Structure and Function in the Nervous System of Invertebrate (T. H. Bullock and G. A. Horridge, eds.), Vol. 1: 353–429. W. H. Freeman, San Francisco, California.
Clark, R. B. 1956. The neurosecretory system of the polychaete Nephtys and its role in reproduction. XXth Internat. Physiol. Congr. Abstracts of Communications: 178.
Czechowicz, K. 1963. Neurosection in leeches and the annual cycle of its changes. Zool. Pol., 13 (3/4): 164–184.
Dogra, G. 1968. Studies ‘in situ’ on the neurosecretory system of the earthworm, Pheretima posthuma. J. Zool. Lond., 156: 10–118.
Durchon, M. 1952. Recherches expérimentales sur deux aspects de la reproduction chez les Annelides polychaetes; l'epitoquie et la stolonisation. Am. Sci. nat. Zool., 14: 117–208.
Ewen, A. B. 1962. An improved aldehyde-fuchsin staining techniques for neurosecretory products in insects. Trans. Amer. Micros. Soc., 81: 94–96.
Golding, D. W. 1974. A survey of neuroendocrine phenomena in nonarthropod invertebrates. Biol. Rev., 49: 161–224.
Hagadorn, I. R. 1962. Functional correlates of neurosecretion in the rhynchobdellid leech, Theromyzon rude. Gen. Comp. Endocrinol., 2: 516–540.
Hagadorn, I. R. 1966. Neurosecretion in the Hirudinea and its possible role in reproduction. Am. Zool., 6: 251–261.
Herlant-Meewis, H. 1966. Les cellules neurosecrérices de la chaine nerveuse d'Eisenia foetida. Z. Zellforsch. mikrosk. Anant., 69: 319–325.
Howie, D. I. D. 1966. Further data relating to the maturation hormone and its site of secretion in Arenicola marina. Gen. Comp. Endocrinol., 6: 347–361.
Kulkarni, G. K., Nagabhushanam, R. & Hanumante, M. M. 1978. Reproductive biology of the Indian freshwater leech, Poecilobdella viridis. Hydrobiologia 58 (2): 157–165.
Mallory, F. 1944. Physiological Techniques. W. B. Saunders Co., Philadelphia.
Nagabhushanam, R. & Hanumante, M. M. 1977. Neurosecretion and reproduction in the tropical earthworm, Perionyx excavatus Marath. Univ. J. Sci. 16 (9): 237–240.
Nagabhushanam, R. & Kulkarni, G. K. 1978. Histomorphological studies on the brain neurosecretory profile of Indian leech, Poecilobdella viridis (Blanchard). Proc. Indian. Acad. Sci. 87 (9B): 203–209.
Ostle, B. 1966. Statistics in Research. Oxford and IBH Publishing Co., Calcutta, Bombay, New Delhi.
Tombes, A. S. 1970. An introduction to invertebrate endocrinology. Academic Press, New York, London.
Author information
Authors and Affiliations
Rights and permissions
About this article
Cite this article
Nagabhushanam, R., Kulkarni, G.K. Annual changes in the brain neurosecretory profile of the Indian freshwater Leech, Poecilobdella viridis (Blanchard) in relation to reproduction. Hydrobiologia 69, 163–168 (1980). https://doi.org/10.1007/BF00016545
Received:
Published:
Issue Date:
DOI: https://doi.org/10.1007/BF00016545