## Abstract Changes in chemical composition, water content, respiration, and ability to survive rapid dehydration in dry air were studied in nematodes, __Aphelenchus avenae__, recovering from anhydrobiosis, in water. Water content rises rapidly, from about 0.02 mg H~2~O/mg dry weight to 2.0 mg/mg a
Anhydrobiosis in nematodes: Carbohydrate and lipid metabolism during dehydration
β Scribed by Madin, K. A. C. ;Crowe, John H.
- Publisher
- John Wiley and Sons
- Year
- 1975
- Tongue
- English
- Weight
- 557 KB
- Volume
- 193
- Category
- Article
- ISSN
- 0022-104X
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β¦ Synopsis
Abstract
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Changes in the chemical composition of pellets of the nematode Aphelenchus avenae were studied as the worms experienced evaporative water loss during 72 hours at 97% RH.
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Lipid content declines rapidly during the first 24 hours, and decreases to about 60% of the original by the end of 72 hours.
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Glycogen content declines to about 50% of original by the end of 24 hours, and to 10% of original by 72 hours.
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Glucose content remains constant.
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Glycerol and trehalose contents both increase rapidly, reaching about 700% of the 24βhour content by the end of 72 hours, in each case.
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Strong correlations between survival in dry air and glycerol and trehalose contents were observed.
π SIMILAR VOLUMES
## Abstract 1. Inorganic ions and primary amines are leaked from anhydrobiotic and quickβdried nematodes, __Aphelenchus avenae__, when they are plunged from dry air into water. 2. Anhydrobiotic nematodes leak about oneβthird as fast as quickβdried ones. 3. When the water content is increased abov
## Abstract Control of the synthesis of trehalose during the induction of anhydrobiosis was examined. Kinetic parameters for TPS did not change during the induction, indicating that there was no de novo synthesis of an isozyme. TPS activity doubled in the presence of a mixture of Na^+^, K^+^, Mg^++
## Abstract Anhydrobiosis (βlife without waterβ) is the state of suspended animation that certain organisms, including some nematodes, tardigrades, and bdelloid rotifers, enter during desiccation. Extreme water loss imposes considerable stress on biomolecules, cells, and tissues, and must require s