Anhydrobiotic coiling of nematodes in soil

Nematodes of three genera (Acrobeloides sp., Aphelenchus avenae, and Scutellonema brachyurum) were induced to coil and enter anhydrobiosis in drying soil of two types: sandy loam and loamy sand. Coiling was studied in relationship to soil moisture characteristics. Coiling and the physiological state...

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Veröffentlicht in:Journal of nematology. - 1969. - 11(1979), 2 vom: 01. Apr., Seite 189-95
1. Verfasser: Demeure, Y (VerfasserIn)
Weitere Verfasser: Freckman, D W, Van Gundy, S D
Format: Aufsatz
Sprache:English
Veröffentlicht: 1979
Zugriff auf das übergeordnete Werk:Journal of nematology
Schlagworte:Journal Article Acrobeloides Aphelenchus avenae Scutellonema brachyururn anhydrobiosis monomolecular layers of water soil moisture survival
Beschreibung
Zusammenfassung:Nematodes of three genera (Acrobeloides sp., Aphelenchus avenae, and Scutellonema brachyurum) were induced to coil and enter anhydrobiosis in drying soil of two types: sandy loam and loamy sand. Coiling was studied in relationship to soil moisture characteristics. Coiling and the physiological state of anhydrobiosis occurred before the water in sandy soils reached a water potential of -15 bars. Coiling was maximum at 3-6 bars, depending on the soil type and nematode species. It appeared that induction of coiling and anhydrohiosis were determined by the physical forces exerted by the water film surrounding the nematode, which, for these three species, was 6-9 monomolecular layers of water, rather than the % moisture and relative humidity of the soil per se
Beschreibung:Date Completed 14.07.2011
Date Revised 20.10.2021
published: Print
Citation Status PubMed-not-MEDLINE
ISSN:0022-300X