Aim. To investigate how starvation during early stage of fly development affects carbohydrate metabolism in imago flies and their progeny F1 generation. Methods. Wild-type Canton-S strain Drosophila melanogaster were used all experiments. Flies parental offspring generations for the determination glycogen glucose content using diagnostic kit Glucose-Mono-400-P according to manufacturer's instru...

A self-circulation system is presented for a self-refueling insect-mountable biofuel cell (BFC) using trehalose, the main sugar of insect hemolymph. The maximum power density of 10.5 μW/cm was obtained from cockroach hemolymph (CHL) with added trehalase and mutarotase. The electrodes were protected by a dialysis membrane to prevent decrease of open-circuit voltage by adsorption of proteins in t...

Insects are known to exchange respiratory gases in their system of tracheal tubes by using either diffusion or changes in internal pressure that are produced through body motion or hemolymph circulation. However, the inability to see inside living insects has limited our understanding of their respiration mechanisms. We used a synchrotron beam to obtain x-ray videos of living, breathing insects...

Metabolomic Analysis of Atlantic Blue Crab, Callinectes sapidus, Hemolymph Following 1 Oxidative Stress 2 3 Tracey B. Schock, David A. Stancyk, Lindy Thibodeaux, Karen G. Burnett, Louis E. 4 Burnett, Arezue F. B. Boroujerdi, Daniel W. Bearden 5 6 National Institute of Standards and Technology, Analytical Chemistry Division, Hollings 7 Marine Laboratory, Charleston, SC 29412 8 Grice Marine Labor...

Injection of a Japanese cedar pollen suspension into silkworm hemolymph kills the silkworms. A certain species of bacteria proliferated in the hemolymph of the dead silkworms. A 16S rDNA analysis demonstrated that the proliferating bacteria were Bacillus cereus, Bacillus thuringiensis, Bacillus weihenstephanensis, and Bacillus amyloliquefaciens. Among them, B. cereus, B. thuringiensis, and B. w...

Three thousand Periplaneta americana were sacrificed and the following data collected: number parasitized by oxyurid nematodes, age, sex, weight, length, specific gravity of hemolymph, differential cell counts of hemocytes, and the number of each nematode species present. The mean number of nematodes per host for adults and nymphs, and males and females were compared using the Student's Mest. T...

Freshwater mussels are an imperiled fauna exposed to a variety of environmental toxicants such as lead (Pb) and studies are urgently needed to assess their health and condition to guide conservation efforts. A 28-day laboratory toxicity test with Pb and adult Eastern elliptio mussels (Elliptio complanata) was conducted to determine uptake kinetics and to assess the toxicological effects of Pb e...