QUANTITATIVE STUDIES OF HYDROLYTIC ENZYME ACTIVITY IN THE SALIVARY GLAND OF<i>CHIRONOMUS TENTANS</i>(DIPTERA: CHIRONOMIDAE) DURING METAMORPHOSIS

Laufer, Hans; Schin, Ki Ssu

doi:10.4039/ent103454-3

Cited by 36 publications

(15 citation statements)

References 13 publications

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“…Acetylcholine esterase was measured according to method described by Simpson et al, (1964). Acid and alkaline phosphtase activities were determined by the method described by Laufer and Schin (1971).…”

Section: Biochemical Studies:-mentioning

confidence: 99%

Toxicological and biochemical studies of Methylamine Avermactin, a new type of bioinsecticide against the cotton leafworm, Spodoptera littoralis (Biosd).

Dahi

El-Sayed²,

El-Barkey

et al. 2009

Egyptian Academic Journal of Biological Sciences. A, Entomology

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Larvicidal efficacy of a new semi-synthetic avermectin derivative Methylamine avermectin (Radical 0.5% EC) was determined against larval instars of the Egyptian cotton leafworm, Spodoptera littoralis (Biosd.) in the laboratory, field and semi field experiments. 2 nd and 4 th instar larvae showed greatest susceptibility to the Radical in the laboratory experiment. The LC 50s values of the 2 nd and 4 th larval instar after 48 hours were 0.005 and 0.008 ppm, respectively. Radical was tested with recommended dosage (200 ml / 100 liter water) in field; it caused 84.6% reduction of pest population up to day 8 post-treatment. On the other hand, the semi field application of the same recommended dose on the 2 nd instar larvae showed general mean 73.6% mortality, 7 days after post-treatment. Also, some biochemical changed in the 4 th instar larvae after 48 hours of treatment with tested bioinsecticide were measured. It's clear from the results that activities of trehalase, invertase and acetylcholine esterase were increased in all treatments. Tested bioinsecticide reduced the activity of alkaline phosphatase at all doses compared to untreated larvae. No significant changes in acid-phosphatase activities were observed at all treatment doses. On studying the effect of esterases isozymes patterns, there were no differences in number and position of esterases isozymes between untreated and treated larvae in the whole larval body tissues although each band different in its concentration. The toxicity of the formulation to some beneficial predators was also evaluated in the field. There was no detectable effect of these bioinsecticide on naturally occurring beneficial species.

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Section: Biochemical Studies:-mentioning

confidence: 99%

Toxicological and biochemical studies of Methylamine Avermactin, a new type of bioinsecticide against the cotton leafworm, Spodoptera littoralis (Biosd).

Dahi

El-Sayed²,

El-Barkey

et al. 2009

Egyptian Academic Journal of Biological Sciences. A, Entomology

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“…In some instances the limiting membrane of the MVBs bears a bristle coating strikingly similar to that of the coated vesicles (Figs. 10,11).…”

Section: Resultsmentioning

confidence: 99%

Developmental Studies of Vitellogenesis in a Dipteran Insect, Chironomus thummi

Travis

Schin

1977

Differentiation

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“…Acid and alkaline phosphatase activities were determined by the method described by Laufer and Schin (1971).…”

Section: Determination Of Phosphatases Activitymentioning

confidence: 99%

Effects of some Insecticide Mixtures on Toxicity and Some Biochemical Parameters of Cotton Leafworm, Spodoptera littoralis (Boisd.)

Aziz

Mohamed²

2019

Egyptian Academic Journal of Biological Sciences, F. Toxicology

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The journal of Toxicology and pest control is one of the series issued twice by the Egyptian Academic Journal of Biological Sciences, and is devoted to publication of original papers related to the interaction between insects and their environment. The goal of the journal is to advance the scientific understanding of mechanisms of toxicity. Emphasis will be placed on toxic effects observed at relevant exposures, which have direct impact on safety evaluation and risk assessment. The journal therefore welcomes papers on biology ranging from molecular and cell biology, biochemistry and physiology to ecology and environment, also systematics, microbiology, toxicology, hydrobiology, radiobiology and biotechnology. www.eajbs.eg.net Provided for non-commercial research and education use.Not for reproduction, distribution or commercial use. ABSTRACT Article History

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QUANTITATIVE STUDIES OF HYDROLYTIC ENZYME ACTIVITY IN THE SALIVARY GLAND OFCHIRONOMUS TENTANS(DIPTERA: CHIRONOMIDAE) DURING METAMORPHOSIS

Cited by 36 publications

References 13 publications

Toxicological and biochemical studies of Methylamine Avermactin, a new type of bioinsecticide against the cotton leafworm, Spodoptera littoralis (Biosd).

Toxicological and biochemical studies of Methylamine Avermactin, a new type of bioinsecticide against the cotton leafworm, Spodoptera littoralis (Biosd).

Developmental Studies of Vitellogenesis in a Dipteran Insect, Chironomus thummi

Effects of some Insecticide Mixtures on Toxicity and Some Biochemical Parameters of Cotton Leafworm, Spodoptera littoralis (Boisd.)

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