National Conference

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Author: search.filters.author.Parimala K

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    ENVIRONMENT INDUCED CHANGES IN THE BIMODAL GAS EXCHANGE AND HAEMATOLOGY OF FACULTATIVE AIR-BREATHING FISH, MYSTUSPUNCTATUS
    (Department of Biotechnology, PSG College of Technology, Coimbatore Tamil Nadu, India, 2004-02-15) Devika R; Natarajan G M; Parthi N; Esther Joice P; Jacintha S; Parimala K; Sasikala G
    Many facultative air-breathing fishes augment their supply by utilizing a modified swim - bladder to breathe air. However, there is no direct evidence for the involvement of air bladder in the respiratory functions of any Indian air-breathing fish. Therefore, the present investigation was undertaken to study the environment-induced changes in the bimodal gas exchange and blood characteristics of Mystuspunctatus. Fish is a facultative air-breather. The air bladder extracts 27% of Оxygenfrom air under bimodal conditions. One-hour air exposure increased the air bladder Оxygenconsumption to 39%. 96 h starvation increased the gill respiration (70.5%) 35°C exposure increased the airbladder uptake to 34.18%. 96 h hypoxic exposure increased the gill respiration to 70.19%. Except blood glucose, RBC, Hb, Ht, О capacity, MCV, MCHC and MCH are more in male fishes than the females. One hr air- exposure decreased the, RBC, Hb, Ht, Оxygen capacity and blood glucose. Air exposure stress increased the MCV, MCHC and MCH. Present study demonstrates that environmental stress has pronounced effect on the bimodal exchange and hematology of Mystuspunctatus.
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    FIRST REPORT ON THE ENVIRONMENTAL RECONSTRUCTION OF DEVONIAN PERIOD COIMBATORE CITY AS REVEALED BY THE FIRST PLANT FOSSIL FINDING
    (Department of Biochemistry and Biotechnology, Avinashilingam Deemed University, Coimbatore, Tamil Nadu, India, 2002-12-12) Natarajan G.M; Parthi N; Santhi P; Krishna Kumar N; Palanisamy P; Bhuvaneshwari N; Sasikala G; Rajamamannan M.A; Parimala K
    First report for the first time we report the occurrence of a rare fossil plant in Coimbatore. The present plant fossil was obtained from four different places in the heart on city town during foundation digging for apartment construction activities. Perusal of the literature showed that these fossils were reported only from Australia and other places. With the help of the present fossil finding an attempt is made to reconstruct the Devonian period environment of Coimbatore city.