Format

Send to

Choose Destination
In Vivo. 1997 Mar-Apr;11(2):195-200.

Antibacterial immune response in Astacus leptodactylus (Crustacea, Decapoda).

Author information

1
Institut für Allgemeine und Spezielle Zoologie, Justus-Liebig-Universität, Germany.

Abstract

Antibacterial substances (ABS) in the hemolymph of Astacus leptodactylus were studied by agar-plate lysis and inhibition tests. The results demonstrate ABS against Gram-positive and Gram-negative bacteria. ABS against Gram-positive bacteria were identified as a lysozyme with a molecular weight of 14 kDa, heat resistance (< 50 degrees C) and lability to freezing. ABS against Gram-negative bacteria lost 50% of their activity at 50 degrees C and completely at 70 degrees C but were stable to freezing. Both ABS are inducible; they are produced and stored in the granular and semigranular hemocytes. Lysozyme is found in treated and untreated animals, ABS against Gram-negative bacteria only after induction.

PMID:
9179616
[Indexed for MEDLINE]

Supplemental Content

Loading ...
Support Center