Larval gut pH profile in pestiferous Chironomus crassicaudatus and Glyptotendipes paripes (Chironomidae: Diptera) in reference to the toxicity potential of Bacillus thuringiensis serovar israelensis./i

Result code in IS VaVaI

<a href="https://www.isvavai.cz/riv?ss=detail&h=RIV%2F60077344%3A_____%2F07%3A00094007" target="_blank" >RIV/60077344:_____/07:00094007 - isvavai.cz</a>

Result on the web

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DOI - Digital Object Identifier

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Result language

angličtina

Original language name

Larval gut pH profile in pestiferous Chironomus crassicaudatus and Glyptotendipes paripes (Chironomidae: Diptera) in reference to the toxicity potential of Bacillus thuringiensis serovar israelensis./i

Original language description

Gut pH and pH optimum of amylase were measured in 4th-stage larvae of 2 pestiferous chironomid species, Chironomus crassicaudatus and Glyptotendipes paripes. The gut pH in both species was close to neutral, varying from 6.7 to 7.4 and 6.9 to 7.6 pH unitsfor C. crassicaudatus, G. paripes, respectively. In both species, slightly alkaline pH values were measured in the anterior part of the mesenteron, whereas slightly acidic pH values were recorded in gastric caecae and the posterior part of mesenteron. Amylase pH optimum in both chironomid species remained between pH values of 5.5 and 7, being closer to pH value 7 than 5.5. This profile was consistent with the measured values of the gut pH. The recorded larval gut pH profile in the 2 species of chironomids in the present study is much lower than gut pH reported for mosquitoes or Lepidoptera larvae.

Czech name

pH ve střevech pakomárů Chironomus crassicaudatus a Glyptotendipes paripes (Chironomidae: Diptera) ve vztahu k efektivitě Bacillus thuringiensis serovar israelensis pro jejich hubení

Czech description

pH a aktivita amylázy byly stanoveny ve střevech 2 druhů pakomárů Glyptotendipes paripes a Chironomus crassicaudatus. pH střevního obsahu obou druhů se pohybovalo mezi 6.7 - 7.6. Také vrchol aktivity amylázy byl v tomto rozsahu. pH je méně alkalické nežu komárů či motýlů, to může vysvětlit nižší citlivost pakomárů k Bacillus thuringiensis serovar israelensis v porovnání s ostatními výše uvedenými skupinami.

Type

J_x - Unclassified - Peer-reviewed scientific article (Jimp, Jsc and Jost)

CEP classification

EH - Ecology - communities

OECD FORD branch

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Project

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Continuities

Z - Vyzkumny zamer (s odkazem do CEZ)

Publication year

2007

Confidentiality

S - Úplné a pravdivé údaje o projektu nepodléhají ochraně podle zvláštních právních předpisů

Name of the periodical

Journal of the American Mosquito Control Association

ISSN

8756-971X

e-ISSN

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Volume of the periodical

23

Issue of the periodical within the volume

3

Country of publishing house

US - UNITED STATES

Number of pages

4

Pages from-to

355-358

UT code for WoS article

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EID of the result in the Scopus database

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