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Keywords: trehalose
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Journal Articles
J Exp Biol (2016) 219 (10): 1488–1494.
Published: 15 May 2016
... affects flight performance in the Glanville fritillary. Individuals were flown under either normoxic (21 kPa O 2 ) or hypoxic (10 kPa O 2 ) conditions and their flight metabolism was measured. To determine resource use, levels of circulating glucose, trehalose and whole-body triglyceride were recorded...
Includes: Supplementary data
Journal Articles
J Exp Biol (2016) 219 (7): 949–959.
Published: 1 April 2016
... to measure trehalose ( Broughton et al., 2005 ) by adding the enzyme trehalase (Sigma-Aldrich) to a final concentration of 0.05 U ml −1 . The resulting solution was incubated at 37°C overnight followed by a second reading of A 340 . The amount of glucose produced from trehalose was calculated...
Includes: Supplementary data
Journal Articles
J Exp Biol (2016) 219 (7): 960–968.
Published: 1 April 2016
.... ( 2001 ). Haemolymph sugar levels in foraging honeybees (Apis mellifera carnica): dependence on metabolic rate and in vivo measurement of maximal rates of trehalose synthesis . J. Exp. Biol.   204 , 2709 - 2716 . Broughton , S. J. , Piper , M. D. W. , Ikeya , T. , Bass , T. M...
Includes: Supplementary data
Journal Articles
J Exp Biol (2010) 213 (22): 3852–3857.
Published: 15 November 2010
...Gerhard Wegener; Claudia Macho; Paul Schlöder; Günter Kamp; Osamu Ando SUMMARY Trehalase (EC 3.2.1.28) hydrolyzes the main haemolymph sugar of insects, trehalose, into the essential cellular substrate glucose. Trehalase in locust flight muscle is bound to membranes that appear in the microsomal...
Journal Articles
J Exp Biol (2009) 212 (12): 1859–1868.
Published: 15 June 2009
... hardiness free amino acid hypogean crustacean thermal variation trehalose Subterranean environments are composed of a great diversity of habitats( Juberthie and Decu, 1994b ),in which 97% of the worlds liquid freshwater can be found( Castany, 1998 ). Depending on the geological substratum, water...
Includes: Supplementary data
Journal Articles
J Exp Biol (2005) 208 (15): 2923–2929.
Published: 1 August 2005
... and in a morphologically close aquatic, surface-dwelling (i.e. epigean) crustacean Gammarus fossarum acclimated to 12°C, 3°C and –2°C. With decreasing temperature, G. fossarum significantly increased its alanine and glutamine levels, while trehalose body content was found to increase above control levels only at –2°C. N...
Journal Articles
J Exp Biol (2005) 208 (12): 2433–2445.
Published: 15 June 2005
.... superbus that can readily survive immediate exposure to severe desiccation (fast desiccation strategists). Using this panel of nematodes we investigated the effect of preincubation at high RH on the accumulation of trehalose and on the nematodes' anhydrobiotic potential. We found that there is a strong...
Journal Articles
J Exp Biol (2004) 207 (18): 3125–3129.
Published: 15 August 2004
...Qiaofang Chen; Gabriel G. Haddad SUMMARY Trehalose is a nonreducing disaccharide in which the two glucose units are linked in an α,α-1,1-glycosidic linkage. The best known and most widely distributed pathway of trehalose synthesis involves the transfer of glucose from UDP-glucose to glucose 6...
Journal Articles
J Exp Biol (2003) 206 (13): 2281–2286.
Published: 1 July 2003
... accumulate large amounts of trehalose, which provides effective protection against desiccation because of its high capacity for water replacement and vitrification. As the occurrence of rapid trehalose synthesis coincides with loss of body water, changes of osmolarity in the body are thought to be a cue...
Journal Articles
J Exp Biol (2003) 206 (7): 1233–1240.
Published: 1 April 2003
...Gerhard Wegener; Volker Tschiedel; Paul Schlöder; Osamu Ando SUMMARY The main blood sugar of locusts is trehalose, which is hydrolysed to two glucose units by trehalase. Homogenates of locust flight muscles are rich in trehalase activity, which is bound to membranes. A minor fraction of trehalase...
Journal Articles
J Exp Biol (2002) 205 (18): 2799–2802.
Published: 15 September 2002
... cryptobiotic invertebrate, Polypedilum vanderplanki . Larvae of this insect rapidly accumulated a large amount of the carbohydrate,trehalose, (18% of dry body mass) during desiccation for 2 days, suggesting that a high level of trehalose accumulation contributed to the successful induction of cryptobiosis in P...
Journal Articles
J Exp Biol (2001) 204 (23): 4065–4080.
Published: 1 December 2001
... maintained on a single artificial diet established that parasitized insects display an aberrant induction of gluconeogenesis, so that haemolymph trehalose is maintained at a level equivalent to that of normal insects. In contrast, the present results demonstrated that parasitized larvae offered a choice...
Journal Articles
J Exp Biol (2001) 204 (15): 2709–2716.
Published: 1 August 2001
... from the crop or in the rate of trehalose synthesis in the fat bodies. Independent of the concentration of the sucrose solution supplied, haemolymph trehalose, glucose and fructose levels were constant for metabolic rates from 0 to 4.5mlCO 2 h −1 . At higher metabolic rates, trehalose concentration...