𝔖 Bobbio Scriptorium
✦   LIBER   ✦

Anhydrobiosis in nematodes: Evaporative water loss and survival

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


Publisher
John Wiley and Sons
Year
1975
Tongue
English
Weight
793 KB
Volume
193
Category
Article
ISSN
0022-104X

No coin nor oath required. For personal study only.

✦ Synopsis


Abstract

Nematodes, Aphelenchus avenae, can be induced to become anhydrobiotic by drying in aggregates (pellets) (>90 mg wet weight) at 97% relative humidity (RH). When the rate of weight loss exceeds 3% hr^βˆ’1^ survival is low.

The number of animals in a pellet that survive exposure to dry air increases with time at 97% RH.

The time required for recovery is shortened by rehydration at high humidities before the animals are placed in water and advances with the length of time they are in dry air.

The proportion of animals recovering in water that will survive rapid dehydration decreases with the time they are in water.

A hypothetical scheme for the events of the induction of anhydrobiosis and recovery is presented.


πŸ“œ SIMILAR VOLUMES


Anhydrobiosis in nematodes: Permeability
✍ Crowe, John H. ;O'Dell, Steven J. ;Armstrong, David A. πŸ“‚ Article πŸ“… 1979 πŸ› John Wiley and Sons 🌐 English βš– 479 KB

## Abstract 1. Inorganic ions and primary amines are leaked from anhydrobiotic and quick‐dried nematodes, __Aphelenchus avenae__, when they are plunged from dry air into water. 2. Anhydrobiotic nematodes leak about one‐third as fast as quick‐dried ones. 3. When the water content is increased abov

Anhydrobiosis in nematodes: Biosynthesis
✍ Loomis, Stephen H. ;Madin, K. A. C. ;Crowe, John H. πŸ“‚ Article πŸ“… 1980 πŸ› John Wiley and Sons 🌐 English βš– 560 KB

## Abstract The pathway for the synthesis of trehalose in __Aphelenchus avenae__ was demonstrated. As in other systems, the enzymes involved in the synthesis of trehalose of __A. avenae__ were found to be trehalose phosphate synthetase (TPS) and trehalosephosphate phosphatase (TPP). Some of the cha

Anhydrobiosis in nematodes: Carbohydrate
✍ Madin, K. A. C. ;Crowe, John H. πŸ“‚ Article πŸ“… 1975 πŸ› John Wiley and Sons 🌐 English βš– 557 KB

## Abstract 1. 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. 2. Lipid content declines rapidly during the first 24 hours, and decreases to about 60% of the original by th

Anhydrobiosis in nematodes: Metabolism d
✍ Crowe, John H. ;Madin, K. A. C. ;Loomis, Stephen H. πŸ“‚ Article πŸ“… 1977 πŸ› John Wiley and Sons 🌐 English βš– 647 KB

## 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

Evaporative water loss and skin lipids o
✍ Withers, Philip C. ;Hillman, Stanley S. ;Drewes, Robert C. πŸ“‚ Article πŸ“… 1984 πŸ› John Wiley and Sons 🌐 English βš– 584 KB

African reed frogs (Hyperolius spp) and tree frogs (Chiromantis spp), an Australian tree frog (Litoria gracilenta) and a South American tree frog (Phyllomedusa azurae) have much lower rates of evaporative water loss from their dorsal skin (0.2 to 2 mg 8-l h-') than most anuran amphibians, which evap