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vol. 1, nr. 4 (2003)
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Effects of temperature and soil bacteria on restoration of the immune system and reproduction of earthworms
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Ewa Olchawa, Barbara Czerny, Barbara Płytycz
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Department of Evolutionary Immunobiology, Institute of Zoology, Jagiellonian University, Ingardena str. 6, 30-060 Cracow, Poland |
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vol. 1 (2003), nr. 4,
pp. 705-710
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abstract:
Dendrobaena veneta (Annelida, Oligochaeta, Lumbricidae), irritated with electric current (5V) extrude from the coelomic cavity up to 95% of coelomocytes. Such a loss of coelomocytes does not affect the animal viability. During twenty-four hours after extrusion about 50% of the initial number of coelomocytes is restored. This number does not changes in earthworms transferred from the room temperature to 10°C, while is restored to the control level during 3-4 weeks in animals kept at 22°C. This correlates with the low and high bacterial content in the coelomic fluid and soil samples at 10 and 22°C at 6 weeks after cell extrusion. The low temperature, but not coelomocytes loss, causes the decrease of the numbers of deposited cocoons.
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keywords:
Dendrobaena veneta, temperature, coelomocytes, coelomic fluid, cocoons
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original in:
Polish
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