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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
... imposed by nurse bees (young adult workers that feed the larvae) play a key role in honey bee division of labor ( Page, 2013 ). Starvation during development was associated with elevated glucose levels (Student's t -test: t =3.2550, N =36, P =0.0064; Fig. 4 A) as well as increased trehalose...
Includes: Supplementary data
Journal Articles
J Exp Biol (2016) 219 (7): 960–968.
Published: 1 April 2016
... tergites. The head and thorax were quickly cut into pieces and the abdomen was collected by removing the digestive tract and sting apparatus. All samples were quickly flash-frozen in liquid nitrogen. Glucose and trehalose were measured in the hemolymph, and glycogen and triglycerides were measured...
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
Journal Articles
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
Journal Articles
J Exp Biol (2000) 203 (4): 821–830.
Published: 15 February 2000
... of serine, but suffered a significant reduction in levels of trehalose. C. tarsalis responded to increased environmental salinity with increased hemolymph levels of both proline and trehalose. When C. tarsalis larvae were held in 64 % sea water, which C. quinquefasciatus larvae cannot tolerate, hemolymph...
Journal Articles
J Exp Biol (2000) 203 (4): 831–839.
Published: 15 February 2000
...), hemolymph NaCl, proline and trehalose concentrations increased significantly. When sorbitol was used to increase the external osmolality without an elevation in salt concentration, hemolymph NaCl and proline concentrations decreased, whereas hemolymph trehalose concentration increased. The results suggest...
Journal Articles
J Exp Biol (1998) 201 (12): 1939–1946.
Published: 15 June 1998
... the Argentine cockroach Blaptica dubia with an extract of the corpora cardiaca containing as little as 0.005 gland equivalents ml −1 of incubation medium increased the release of trehalose (anthrone-positive material) from the tissue by more than 100 %. The content of the glycolytic activator fructose 2,6...
Journal Articles
J Exp Biol (1998) 201 (2): 227–236.
Published: 15 January 1998
...-acclimated Hemideina maori was found to contain relatively high concentrations of the cryoprotectants trehalose (>300 mmol l −1 ) and proline (41 mmol l −1 ). Survival of isolated Malpighian tubules was correspondingly high when a high concentration of trehalose was present in the bathing saline. Tubules...
Journal Articles
J Exp Biol (1997) 200 (3): 467–475.
Published: 1 February 1997
..., mobilizable carbohydrates (trehalose, glycogen, glycerol). Calculations indicate that, if these carbohydrates are being utilized at all during anoxia, the rate is at the least 50 000 times lower than the aerobic rate (lower limit of detection). Indications of proteolysis during prolonged anoxia were sought...
Journal Articles
J Exp Biol (1989) 147 (1): 539–543.
Published: 1 November 1989
... be incubated in sea water under anoxic conditions for over 5 months without a decrease in viability. Subsequent work showed that anoxic cysts did not carry out a conventional lactate-producing metabolism and that the breakdown of trehalose, a disaccharide required for the energy metabolism of aerobic cysts...