A method for estimating the number of active protozoa in the soil-Reference-Cited by-同舟云学术

A method for estimating the number of active protozoa in the soil

Published:1920-04 Issue:2 Volume:10 Page:135-143
ISSN:0021-8596
Container-title:The Journal of Agricultural Science
language:en
Short-container-title:J. Agric. Sci.

Author:

Cutler D. W.

Abstract

1. A method is described by which it is possible to estimate the numbers of active protozoa in a soil.2. The total number of protozoa is first found by a dilution method. A fresh portion of the soil is then treated with 2 per cent. HCl (sp. gr. 1·15) overnight. By this means all active forms are killed. A second count by the dilution method gives the number of cystic protozoa in the soil. From these results the number of active forms can be ascertained.

Publisher

Cambridge University Press (CUP)

Subject

Genetics,Agronomy and Crop Science,Animal Science and Zoology

Reference10 articles.

1. Studies on Soil Protozoa;Koch;Ib.,1916

2. A New Method for counting Soil Protozoa;Kopeloff;Cent. f. Bakt.,1916

3. Method for counting certain Protozoa in the Soil;Itano;Soil Science,1918

4. The excystation of colpoda cucullus from its resting cysts, and the nature and properties of the cyst membranes

5. An inquiry into some problems affecting the spread and incidence of intestinal protozoal infections, etc.;Wenyon;Journ. Roy. Army Med. Corps,1917

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