Ethephon (ETF), one of the plant growth regulators, is used in agricultural systems as a valuable tool due to its property of regulating fruit maturation. Here, we aimed to investigate the toxic effects of ETF on the hemolymph metabolites of the greater wax moth, G. mellonella which is an experimental animal and a serious pest in wax. Different doses of ETF (250–390 μg/5 μl) were injected with ...

The effect of juvenile hormone (JH) III on the hemolymph composition of vitellogenin was examined in Perillus bioculatus. Adult females were treated topically with JH III, and the premature presence of vitellogenin in the hemolymph was then detected using electrophoresis and Western blot analyses. JH III treatment resulted in a dose-dependent early production of vitellogenin that was detectable...

Immunological comparisons of a larval hemolymph protein enabled us to build a tree relating major groups of drosophiline flies in Hawaii to one another and to continental flies. The tree agrees in topology with that based on internal anatomy. Relative rate tests suggest that evolution of hemolymph proteins has been about as fast in Hawaii as on continents. Since the absolute rate of evolution o...

The use of biofloc technology (BFT) in narrow-clawed crayfish (Astacus leptodactylus) culture for 45 days was evaluated by production performance and physiological status crayfish. Four different stocking densities were tested BFT (20, 41.66, 62.5, 83.33 individuals m-2). Water quality parameters monitored to sustain desired levels management. growth did not show any significant differences amo...

Santarem. M.M., Figueras. A.J., Robledo, I.A.F. and Caldas, J.R., 1992. Variation of the defence mechanisms in two groups of mussels, Myths galloprovincialis Lmk. Seasonal and environmental effects preliminary results. Aquaculture, 107: 181-188. Hemolymph parameters of mussels from two locations in the Ria de Vigo (N.W. Spain) were studied. Hemolymph proteins agglutinin levels, and the total nu...

The fresh water field crab, Spiralothelphusa hydrodroma is an important food source in parts of South India. The impact of cypermethrin on the variations in the enzyme activity of gills and hemolymph of the experimental female crab S. hydrodroma was carried out. The toxicity of the cypermethrin on the crab was estimated using LC50. Quantitative enzymatic studies of lactate dehydrogenase (LDH), ...

Both soluble and cell-mediated components are involved in the innate immune response of arthropods. Injection of Borrelia burgdorferi, the Lyme disease agent, results in the secretion of defensin into the hemolymph of the ixodid tick, Dermacentor variabilis. The presence of the peptide is observed as early as 15 min post-challenge and remains present through 18 h post-challenge. As observed in ...

Melanization in insect hemolymph is triggered by the recognition of pathogen-associated molecular patterns via pattern recognition receptors. The signal transduction leads to the activation of the prophenoloxidase and hence the generation of melanin. The proPO activation process must be tightly controlled to minimize the host damage caused by reactive intermediates during melanin synthesis. The...

Scolus secretions and hemolymph of caterpillars of Saturnia pyri fed with two different foodplants (Crataegis monogyna, Prunus spinosa) were chemically analyzed and their chemical similarities determined. The secondary-compound patterns obtained for the two body fluids showed no significant differences when compared between the two groups of alternatively fed last-instar larvae. Thus, the compo...