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On the possible mode of action of neurohormones on cholinesterase activity in the ventral nerve cord of scorpion, Heterometrus fulvipes

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Summary

It is shown that Km of ChE is not affected by the neurohormones but Vmax is increased and decreased in presence of acceleratory and inhibitory neurohormones respectively. Hence it is suggested that the neurohormones might modulate the enzyme activity by altering the maximal velocities (Vmax) rather than affecting the enzyme affinity (Km) towards the substrate.

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Author notes

  1. P. Murali Mohan & K. Sasira Babu

    Present address: Department of Zoology, S. V. University, 517 502, Tirupati, A. P., India

Authors and Affiliations

  1. Department of Zoology, Yeshwant, Mahavidyalaya, 431 602, Nanded, Maharashtra, India

    N. Vasantha, S. A. T. Venkatachari, P. Murali Mohan & K. Sasira Babu

  2. Department of Zoology, S. V. University, 517 502, Tirupati, A. P., India

    N. Vasantha & S. A. T. Venkatachari

Authors
  1. N. Vasantha
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  2. S. A. T. Venkatachari
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  3. P. Murali Mohan
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  4. K. Sasira Babu
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Additional information

Acknowledgment. The present study was carried out at S. V. University, Tirupati, A. P. India, and the authors are highly beholden to Prof. K. S. Swami, Head of the Department of Zoology, S. V. University, for his kind help and encouragement. Thanks are also due to the University Grants Commission, New Delhi, India, for placing one of them (N. V.) as a National Research Associate which made the present work possible.

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Vasantha, N., Venkatachari, S.A.T., Mohan, P.M. et al. On the possible mode of action of neurohormones on cholinesterase activity in the ventral nerve cord of scorpion, Heterometrus fulvipes. Experientia 33, 238–239 (1977). https://doi.org/10.1007/BF02124087

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  • DOI: https://doi.org/10.1007/BF02124087

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