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Anhydrobiosis in nematodes: Metabolism during resumption of activity

✍ Scribed by Crowe, John H. ;Madin, K. A. C. ;Loomis, Stephen H.

Publisher: John Wiley and Sons
Year: 1977
Tongue: English
Weight: 647 KB
Volume: 201
Category: Article
ISSN: 0022-104X
DOI: 10.1002/jez.1402010107

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✦ Synopsis

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 after five minutes and 2.9 mg/mg after four hours. Glycogen increases from 5 μg/mg to about 25 μg/mg after one hour. Glycerol and trehalose fall from 45 μg/mg and 125 μg/mg respectively to undetectable levels and 70 μg/mg after four hours. Oxygen uptake rises from about 25 nl/mg/min after ten minutes to 450 nl/mg/min after 1.5 hours and then falls to about 150 nl/mg min after four hours. Lipid content declines from 124 μg/mg to 51 μg/mg after 24 hours. Correlations were observed between survival in dry air and glycerol, trehalose, and water contents.

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