Influence of temperature on the Chemotaxis of Vibrio cholerae 0139 towards Anabaena sp.
2003
Rahman, M. (Dhaka Univ. (Bangladesh). Dept. of Microbiology) | Mizanur, R.M. | Khan, S.I. Hassan, M.R. | Islam, M.S.
The present investigation was designed to assess the role of temperature, an important environmental parameter on the chemotaxis Vibrio cholerae 0139 towards homogenates of Anabaena sp., amino acids (L-serine and L-alanine) and a carbohydrate (D-glucose). A series of temperature (4, 25, 37 and 44 degree centigrade) was assessed in a capillary tube technique to observe its effect on the chemotaxis of V. cholerae 0139 at six different incubation periods of 15, 30, 45, 60, 75 and 90 min. The highest effect was observed at 25 degree centigrade irrespective of the agents tested followed by 37 and 44 degree centigrade. However, no significant chemotactic movement was recorded at 4 degree centigrade. Among the various types of attractants used, maximum response was observed with L- serine as compared to L-alanine and D-glucose and Anabaena sp. homogenates.
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