In Vitro Study of Toxicity of Soluble Sulphides To Three Nematodes Parasitic On Rice in Senegal

In Vitro Study of Toxicity of Soluble Sulphides To Three Nematodes Parasitic On Rice in Senegal IN VITRO STUDY OF TOXICITY OF SOLUBLE SULPHIDES TO THREE NEMATODES PARASITIC ON RICE IN SENEGAL BY R. FORTUNER and V. A. JACQ Laboratoire de Nématologie et Laboratoire de Microbiologie des Sols O.R.S.T.O.M. B.P. 1386. Dakar, Sénégal Toxicity of sulphides to three species of nematodes parasitic on rice from Senegal (Hirschman- niella oryzae, H. spinicaudala and Tylenchorhynchus mashhoodi) was studied in vitro using three different methods. A Sulphide Time Unit (STU) was defined related to the average concentrations of sulphides and their variations during the tests. With hydrogen sulphide dissolved in water, the very low pH increased nematode mortality. When hydrogen sulphide was dissolved in a buffered medium used for bacterial culture, mortality was lower but a shock effect appeared due to sudden contact with high concentrations of sulphides and toxicity of some of the components of the medium. When hydrogen sulphide was produced by sulphate reducing bacteria a similar shock effect was still observed, but only when high concen- trations were reached within 1 or 2 days: in such experiments nematodes were killed by low STU, and differences were observed in resistance of the three species. However, when sulphide accumu- lated more slowly, i.e., when lethal concentrations http://www.deepdyve.com/assets/images/DeepDyve-Logo-lg.png Nematologica Brill

In Vitro Study of Toxicity of Soluble Sulphides To Three Nematodes Parasitic On Rice in Senegal

Nematologica, Volume 22 (3): 343 – Jan 1, 1976

Loading next page...
 
/lp/brill/in-vitro-study-of-toxicity-of-soluble-sulphides-to-three-nematodes-c2QnxdDvk0
Publisher
Brill
Copyright
© 1976 Koninklijke Brill NV, Leiden, The Netherlands
ISSN
0028-2596
eISSN
1875-2926
D.O.I.
10.1163/187529276X00634
Publisher site
See Article on Publisher Site

Abstract

IN VITRO STUDY OF TOXICITY OF SOLUBLE SULPHIDES TO THREE NEMATODES PARASITIC ON RICE IN SENEGAL BY R. FORTUNER and V. A. JACQ Laboratoire de Nématologie et Laboratoire de Microbiologie des Sols O.R.S.T.O.M. B.P. 1386. Dakar, Sénégal Toxicity of sulphides to three species of nematodes parasitic on rice from Senegal (Hirschman- niella oryzae, H. spinicaudala and Tylenchorhynchus mashhoodi) was studied in vitro using three different methods. A Sulphide Time Unit (STU) was defined related to the average concentrations of sulphides and their variations during the tests. With hydrogen sulphide dissolved in water, the very low pH increased nematode mortality. When hydrogen sulphide was dissolved in a buffered medium used for bacterial culture, mortality was lower but a shock effect appeared due to sudden contact with high concentrations of sulphides and toxicity of some of the components of the medium. When hydrogen sulphide was produced by sulphate reducing bacteria a similar shock effect was still observed, but only when high concen- trations were reached within 1 or 2 days: in such experiments nematodes were killed by low STU, and differences were observed in resistance of the three species. However, when sulphide accumu- lated more slowly, i.e., when lethal concentrations

Journal

NematologicaBrill

Published: Jan 1, 1976

There are no references for this article.

You’re reading a free preview. Subscribe to read the entire article.


DeepDyve is your
personal research library

It’s your single place to instantly
discover and read the research
that matters to you.

Enjoy affordable access to
over 18 million articles from more than
15,000 peer-reviewed journals.

All for just $49/month

Explore the DeepDyve Library

Search

Query the DeepDyve database, plus search all of PubMed and Google Scholar seamlessly

Organize

Save any article or search result from DeepDyve, PubMed, and Google Scholar... all in one place.

Access

Get unlimited, online access to over 18 million full-text articles from more than 15,000 scientific journals.

Your journals are on DeepDyve

Read from thousands of the leading scholarly journals from SpringerNature, Elsevier, Wiley-Blackwell, Oxford University Press and more.

All the latest content is available, no embargo periods.

See the journals in your area

DeepDyve

Freelancer

DeepDyve

Pro

Price

FREE

$49/month
$360/year

Save searches from
Google Scholar,
PubMed

Create folders to
organize your research

Export folders, citations

Read DeepDyve articles

Abstract access only

Unlimited access to over
18 million full-text articles

Print

20 pages / month

PDF Discount

20% off