Diet and exercise underpin the risk of obesity-related metabolic disease. Diet alters the gut microbiota, which contributes to aspects of metabolic disease during obesity. Repeated exercise provides metabolic benefits during obesity. We assessed whether exercise could oppose changes in the taxonomic and predicted metagenomic characteristics of the gut microbiota during diet-induced obesity. We ...

plant quality in herbivores’ diet may affect the performance of both herbivore and its parasitoids. in the present research, parasitism capacity of diadegma semiclausum (hellen) on plutella xylostella (l.) reared on different genetically manipulated brassica plants including the canola’s progenitor (brassica rapa l.), two cultivated canola cultivars (cultivar-opera and cultivar-rgs003), one hyb...

Tumors derive their nutrients from the host. These materials may come directly from the diet via the blood, from labile pools which may exist in host tissues, or from the substance of host tissues through their breakdown and transport to the tumor. This has been well studied in the case of tumor-host protein relationships and has resulted in the concept of the tumor as a nitrogen trap, since it...

Drosophila melanogaster is emerging as an important model of non-pathogenic host-microbe interactions. The genetic and experimental tractability of Drosophila has led to significant gains in our understanding of animal-microbial symbiosis. However, the full implications of these results cannot be appreciated without the knowledge of the microbial communities associated with natural Drosophila p...

Herbivorous insects require an active lignocellulolytic microbiome to process their diet. Stick (phasmids) are common in the tropics and display a cosmopolitan host plant feeding preference. The microbiomes of social vertically transmitted offspring, while for solitary species, such as phasmids, it has been assumed that acquired from This study reports characterization gut Gray's Malayan stick ...

Wood-feeding insects encounter challenging diets containing low protein quantities, recalcitrant carbohydrate sources, and plant defensive compounds. The Asian longhorned beetle (Anoplophora glabripennis) is a wood-feeding insect that attacks and kills a diversity of hardwood tree species. We compared gene expression of midguts collected from larvae feeding in a preferred tree, sugar maple, to ...

Hookworm infection is associated with growth delay and iron deficiency anemia in developing countries. A series of experiments were designed in order to test the hypothesis that host dietary iron restriction mediates susceptibility to hookworm infection using the hamster model of Ancylostoma ceylanicum. Animals were maintained on diets containing either 10 ppm iron (iron restricted) or 200 ppm ...

Insects are unable to synthesize essential amino acids (EAAs) de novo, thus rely on dietary or symbiotic sources for them. Wood is a poor resource of nitrogen in general, and EAAs in particular. In this study, we investigated whether gut microbiota of the Asian longhorned beetle, Anoplophora glabripennis (Motschulsky), a cerambycid that feeds in the heartwood of healthy host trees, serve as sou...

Nile tilapia ( Oreochromis niloticus ) is one of the most important commercial freshwater fish in China, and dietary transition occurs their different life stages. The gut microbiota to host health. relationships among diet, microbiota, development are not well known. In present study, we attempted understand how diet associated with community dynamics during tilapia. first experiment was perfo...