ISSN:
1432-1793
Source:
Springer Online Journal Archives 1860-2000
Topics:
Biology
Notes:
Abstract Chitinase andN-acetyl-β-D-glucosaminidase activity were quantified inPalaemon serratus (Pennant) integument and midgut gland during the moulting cycle. Studies were performed on specimens collected near Concarneau, France, in July 1989. The changes in specific activity are different in the two organs: in the midgut gland enzymatic activity is high throughout the whole moulting cycle with a weak peak at the early premoult Stage D1′, whereas in the integument the activity of both enzymes is very low throughout post- and intermoult stages and rises only after premoult Stage D1′. The highest specific activity is reached in D1‴ for chitinase and somewhat earlier (D1″) forN-acetyl-β-D-glucosaminidase. The increase in specific chitinolytic activity coincides with an increase in ecdysteroids.
Type of Medium:
Electronic Resource
URL:
http://dx.doi.org/10.1007/BF02114673
Permalink