... understanding of the protective properties of LEA proteins documented with isolated cells to a desiccation-sensitive organism during exposure to drying and hyperosmotic stress. Embryos of D. melanogaster were dried at 57% relative humidity to promote a loss of 80% tissue water and then rehydrated. Embryos...

... terrestrial components of Antarctic meiofauna; therefore, the pan-Antarctic tardigrade Acutuncus antarcticus was used as model to predict the fate of Antarctic meiofauna threatened by climate change. Acutuncus antarcticus individuals tolerate events of desiccation, increased temperature and UV radiation. Both...

.... Published by The Company of Biologists Ltd 2015 Summary: This study shows that haemolymph loss and energy metabolism combine to affect the ability of insects to maintain discontinuous gas exchange cycles under stressful conditions. Buffering capacity Desiccation DGCs Grasshoppers...

... stress and defense responses to exogenous stressors. In order to rigorously examine correlations between pre-adult development time and other life history traits, we assayed pre-adult survivorship, starvation and desiccation resistance, body size and body weight, fecundity and adult lifespan in faster...

... declared. 12 8 2013 20 8 2013 © 2013. Published by The Company of Biologists Ltd 2013 grouping respiratory metabolism desiccation scaling Aggregation of individuals within species is a common biological phenomenon. The reasons proposed for aggregation are wide-ranging...

... dependent and resulted in a significant genotype–temperature interaction for survival across cold temperature exposures that differ by as little as 2°C. We investigated desiccation as a potential mechanism of injury across these temperature exposures. Flies were dehydrated following exposures near 6°C...

.... This paper presents the first measurements of fracture toughness for insect cuticle using a standard engineering approach. Our results show that the fracture toughness of cuticle in locust hind legs is 4.12 MPa m 1/2 and decreases with desiccation of the cuticle. Stiffness and strength of the tibia cuticle...

... metabolic rate and water balance in insects and other terrestrial arthropods. * Author for correspondence ( [email protected] ) 11 5 2010 © 2010. 2010 metabolic depression respirometry water balance acclimatization climate change starvation desiccation Investigations of gas...

...Bishwo N. Adhikari; Diana H. Wall; Byron J. Adams SUMMARY Nematodes are the dominant soil animals of the Antarctic Dry Valleys and are capable of surviving desiccation and freezing in an anhydrobiotic state. Genes induced by desiccation stress have been successfully enumerated in nematodes; however...

...L. Rebecchi; M. Cesari; T. Altiero; A. Frigieri; R. Guidetti SUMMARY Anhydrobiosis is a highly stable state of suspended animation in an organism due to its desiccation, which is followed by recovery after rehydration. Changes occurring during drying could damage molecules, including DNA. Using...

...D. A. Wharton; L. Petrone; A. Duncan; A. J. McQuillan SUMMARY The anhydrobiotic plant-parasitic nematode Ditylenchus dipsaci undergoes a decrease in permeability (the permeability slump) during the early stages of desiccation and this produces the slow rate of water loss necessary for its survival...

... inaccessible for much of the year. Desiccation responses under ecologically realistic soil humidity conditions– those close to the wilting points of plants [98.9% relative humidity(RH)] – have not previously been examined in polar insect species. In the current study we show that, when desiccated at 98.2% RH...

...A. Tomcala; M. Tollarová; J. Overgaard; P. Simek; V. Kostál SUMMARY Adults of the insect Pyrrhocoris apterus acquire chill tolerance through the process of autumnal acclimatization. Field and laboratory experiments were conducted to separate the triggering effects of low temperatures, desiccation...

...Peter Alpert SUMMARY Drying to equilibrium with the air kills nearly all animals and flowering plants, including livestock and crops. This makes drought a key ecological problem for terrestrial life and a major cause of human famine. However, the ability to tolerate complete desiccation...

... of the exocuticle are partly oriented almost perpendicular to the surface, which is rather unusual for arthropod cuticle. Nanoindentation experiments were performed to determine the local mechanical properties (hardness and elastic modulus) of the gula material. To understand the effect of desiccation...

... to survive extreme desiccation by entering into a state of suspended animation known as anhydrobiosis. We have assembled a collection of Panagrolaimus species and strains and have investigated their anhydrobiotic phenotypes. Our data show that within the genus Panagrolaimus there is a continuum of strains...

... under prolonged desiccation conditions. The high initial WLR previously reported for Scorpionidae result in rapid depletion of body water stores. A significant decrease in total body water content of Scorpionidae was recorded following loss of only 5% of initial mass, whereas no such decrease...

...Melissa A. Albers; Timothy J. Bradley SUMMARY We have examined the osmoregulatory capacities of laboratory populations of the insect Drosophila melanogaster by measuring hemolymph osmotic concentration during desiccation and upon recovery from a bout of desiccation. Recovery treatments entailed...

...Scott A. L. Hayward; Joseph P. Rinehart; David L. Denlinger SUMMARY Heat shock proteins (Hsps) are a ubiquitous component of the cellular response to stress in both prokaryotic and eukaryotic organisms, but their role and function during desiccation stress in terrestrial arthropods has received...

.... quinquestriatus (571±39 mOsm l –1 ) had higher and less variable haemolymph osmolarities than the scorpionids occupying the same habitats (511±56 and 493±53 mOsm l –1 for S. m. fuscus and S. m. palmatus , respectively). In response to 10% mass loss when desiccated at 30°C, the haemolymph osmolarity of the two...