... of the nutritional composition of larval diets (i.e. diet quality) on adult RMR has not been studied. Using in vitro rearing to control larval diet quality, we determined the effect of dietary protein and carbohydrate on honeybee survival to adulthood, time to eclosion, body mass/size and adult RMR. High...

...Daniel Stabler; Mushtaq Al-Esawy; Jennifer A. Chennells; Giorgia Perri; Alexandria Robinson; Geraldine A. Wright ABSTRACT Essential macronutrients are critical to the fitness and survival of animals. Many studies have shown that animals regulate the amount of protein and carbohydrate they eat...

...Lelei Wen; Xiaoguo Jiao; Fengxiang Liu; Shichang Zhang; Daiqin Li ABSTRACT Prey proteins and lipids greatly impact predator life-history traits. However, life-history plasticity offers predators the opportunity to tune the life-history traits in response to the limited macronutrients to allocate...

... a reduction in glycogen stores yet increase flight activity without changing rates of glycogen depletion. Drosophila Energy Metabolism Obesity Plasticity Protein Glycogen is a critical store of energy for supplying the energetic demands of locomotion in many animals ( Hochachka, 1985...

... h) in adult zebrafish fed with commercial pellets (51% protein, 2.12% ration). Compared with a fasted group, fed fish presented peak increases of oxygen consumption (78%), and carbon dioxide (80%) and nitrogen excretion rates (338%) at 7–8 h, and rates remained elevated at 10 h. The respiratory...

...Taehwan Jang; Kwang Pum Lee ABSTRACT Protein and carbohydrate are the two major macronutrients that exert profound influences over fitness in many organisms, including Drosophila melanogaster. Our understanding of how these macronutrients shape the components of fitness in D. melanogaster has been...

... effects in proteins . Science   201 , 1187 - 1191 . 10.1126/science.694508 Peters , H. M. ( 1984 ). The spinning apparatus of Uloboridae in relation to the structure and construction of capture threads (Arachnida, Araneida) . Zoomorphology   104 , 96 - 104 . 10.1007/BF00312023...

... of foraging distance on individual German cockroaches by providing two foods differing in protein-to-carbohydrate ratio at opposite ends of long containers or adjacent to each other in short containers. Each food was nutritionally imbalanced, but the two foods were nutritionally complementary, allowing...

... characterized, and are likely to be more complex than simply changes in gene expression or protein modification. Finally, we present a hypothesis regarding an unexplored area for biochemical adaptation to ocean acidification. In this hypothesis, proteins and membranes exposed to the external environment...

...Daniel Stabler; Pier P. Paoli; Susan W. Nicolson; Geraldine A. Wright ABSTRACT Animals carefully regulate the amount of protein that they consume. The quantity of individual essential amino acids (EAAs) obtained from dietary protein depends on the protein source, but how the proportion of EAAs...

... long-term changes in nutrient metabolism in rainbow trout. Trout alevins received during the five first days of exogenous feeding either a hyperglucidic (40% gelatinized starch + 20% glucose) and hypoproteic (20%) diet (VLP diet) or a high-protein (60%) glucose-free diet (HP diet, control). Following...

... developmental stages and to examine whether the effects were more pronounced in larval stages developing in the open ocean. Oxygen consumption rate, total protein, dry mass, total lipids and C/N were determined in late-stage embryos, zoea I larvae and newly settled juveniles reared in ambient pH (7.93±0.06...

... their circulating initial levels of the stress hormone corticosterone, showed evidence for increased secretion of a hypothalamic stress peptide, vasotocin, used greater amounts of fat and protein energy reserves, and were more behaviorally active than birds in the constant feeding group. Overall, these findings...

... globulin environmental predictability opportunism protein red crossbill zebra finch Functional interactions between life-history traits (e.g. trade-offs) can drive evolution, and are a key aspect of evolutionary mechanisms in general ( Roff, 1992 ; Stearns, 1989 ; Zera and Harshman, 2001...

... and function of the proteins and genes contributing to the cycling of the clock in crayfish Procambarus clarkii are scarce. In this study, we investigated whether three proteins that interact in the feedback loop of the molecular clock described for Drosophila are expressed in the putative circadian pacemakers...

.... The observed movement of the CO molecule from the heme iron site to the internal cavities and the associated structural changes of the amino acid residues around the cavities confirm the integral role of the pores in forming a ligand migration pathway from the protein surface to the heme. These observations...

...Guojin Wu; Zandong Li SUMMARY It has been speculated that free amino acids digested from proteins in bird eggs are transported to the circulation for the nourishment of the embryo. In the present study, we found that early chicken embryo protein in the serum might be utilized efficiently...

...-mail: m.l.roberts@imperial.ac.uk ) 28 3 2009 © The Company of Biologists Limited 2009 2009 testosterone blue tit condition immunity PHA SRBC carotenoids protein A key assumption of the immunocompetence handicap hypothesis (ICHH)( Folstad and Karter, 1992 )that the male sex hormone...

...Katarzyna Sobierajska; Hanna Fabczak; Stanislaw Fabczak SUMMARY Immunological techniques and high-resolution FRET analysis were employed to investigate the in vivo colocalization and interaction of phosducin(Pdc) with the βγ-subunits of G-protein (Gβγ) in the ciliate Blepharisma japonicum...

... conditions designed to cause changes in the plasma levels of insulin, such as fasting, insulin and arginine administration. In order to determine whether changes of btGLUT4 expression at the mRNA level are correlated with changes at the protein level, we performed in vivo experiments to alter blood insulin...