A Comparison of Chitinolytic Bacteria and Their Enzymatic Activity in Two Freshwater Systems

نویسندگان

  • R.Sivakami
  • M.Mahalakshmi
چکیده

Chitin is the second most common polysaccharide occurring in nature (Tsujibo et al., 1998; Brurberg et al., 2000) and is one of the main structural components of the outer skeleton of insects and crustaceans (Huang et al., 1996; Schlegel, 1996) being at the same time the exoskeleton of coelenterates, platyhelminthes, protozoans, mollusks and in the cell wall of many fungi (Suzuki et al., 1998). Chitinase is a hydrolase that degrades the chitin polymer, and like chitin, it is also present in a wide range of organisms (Someya et al., 2011). In some cases, chitinases play a role in morphogenesis and/or autolysis in chitin containing organisms (Brurberg et al., 2000). Despite bacteria not containing chitin as a native component, numerous bacteria are able to hydrolyze chitin. Thus, it is conceivable that chitinolytic bacteria utilize chitin as a carbon source via the activity of chitinolytic enzymes.

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تاریخ انتشار 2002