Ultrastructural changes in the cuticle of the greenhouse whitefly <i>Trialeurodes vaporariorum</i>, induced by the insect growth inhibitor, buprofezin

Hegazy, G.; Cock, A. de; Degheele, Danny

doi:10.1111/j.1570-7458.1990.tb01443.x

Cited by 7 publications

(5 citation statements)

References 13 publications

(13 reference statements)

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“…Buprofezin is widely used for its high efficiency in controlling homopteran pests, such as whiteflies (Trialeurodes vaporariorum and Bemisia tabaci), planthoppers (Nilaparvata lugens and Sogatella furcifera), and citrus scales (Aonidiella aurantii and Saissetia oleae) (Atsushi et al 1996;Hegazy et al 1990;Yang and Yang 2007).…”

Section: Introductionmentioning

confidence: 98%

Isolation of a buprofezin co-metabolizing strain of Pseudomonas sp. DFS35-4 and identification of the buprofezin transformation pathway

Chen

Liu

et al. 2011

Biodegradation

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Buprofezin is a widely used insecticide that has caused environmental pollution in many areas. However, biodegradation of buprofezin by pure cultures has not been extensively studied, and the transformation pathway of buprofezin remains unclear. In this paper, a buprofezin co-metabolizing strain of DFS35-4 was isolated from a buprofezin-polluted soil in China. Strain DFS35-4 was preliminarily identified as Pseudomonas sp. based on its morphological, physiological, and biochemical properties, as well as 16S rRNA gene analysis. In the presence of 2.0 g l(-1) sodium citrate, strain DFS35-4 degraded over 70% of 50 mg l(-1) buprofezin in 3 days. Strain DFS35-4 efficiently degraded buprofezin in the pH range of 5.0-10.0 and at temperatures between 20 and 30°C. Three metabolites, 2-imino-5-phenyl-3-(propan-2-yl)-1,3,5-thiadiazinan-4-one, 2-imino-5-phenyl-1,3,5-thiadiazinan-4-one, and methyl(phenyl) carbamic acid, were identified during the degradation of buprofezin using gas chromatography-mass spectrometry (GC-MS) and tandem mass spectrometry (MS/MS). A partial transformation pathway of buprofezin in Pseudomonas sp. DFS35-4 was proposed based on these metabolites.

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Section: Introductionmentioning

confidence: 98%

Isolation of a buprofezin co-metabolizing strain of Pseudomonas sp. DFS35-4 and identification of the buprofezin transformation pathway

Chen

Liu

et al. 2011

Biodegradation

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“…Buprofezin (2- tert -butylimino-3-isopropyl-5-phenyl-1,3,5-thiadiazinan-4-one) is a broad-spectrum insect growth regulator that interrupts the development of immature insects by inhibiting chitin biosynthesis and subsequent cuticle deposition. − This compound has been widely used on tea, rice, potatoes, citrus fruit, cotton, and vegetables to control various pests, such as whiteflies, planthoppers, leafhoppers, and scales. − Because of its high hydrophobicity and stability in acid and alkali environments, buprofezin is easily adsorbed by soil particles, which may contribute to its long-term retention in soil . Under aerobic field conditions, the half-life of buprofezin is in the range of 50–70 days, and under flooded field conditions, the half-life is approximately 36–104 days.…”

Section: Introductionmentioning

confidence: 99%

Biodegradation of Buprofezin by Rhodococcus sp. Strain YL-1 Isolated from Rice Field Soil

Zhang

et al. 2012

J. Agric. Food Chem.

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A buprofezin-degrading bacterium, YL-1, was isolated from rice field soil. YL-1 was identified as Rhodococcus sp. on the basis of the comparative analysis of 16S rDNA sequences. The strain could use buprofezin as the sole source of carbon and nitrogen for growth and was able to degrade 92.4% of 50 mg L(-1) buprofezin within 48 h in liquid culture. During the degradation of buprofezin, four possible metabolites, 2-tert-butylimino-3-isopropyl-1,3,5-thiadiazinan-4-one, N-tert-butyl-thioformimidic acid formylaminomethyl ester, 2-isothiocyanato-2-methyl-propane, and 2-isothiocyanato-propane, were identified using gas chromatography-mass spectrometry (GC-MS) analysis. The catechol 2,3-dioxygenase activity was strongly induced during the degradation of buprofezin. A novel microbial biodegradation pathway for buprofezin was proposed on the basis of these metabolites. The inoculation of soils treated with buprofezin with strain YL-1 resulted in a higher degradation rate than that observed in noninoculated soils, indicating that strain YL-1 has the potential to be used in the bioremediation of buprofezin-contaminated environments.

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“…Its mode of action is not fully understood, although the primary effect is to interfere with chitin deposition during moulting and so cause nymphal death during ecdysis. In addition, the fecundity and egg-hatch of treated adult females is reduced (Asai et al, 1983;Uchida et al, 1985;Uchida, 1987;Ishaaya el al, 1988;Hegazy et al, 1990).…”

Section: Introductionmentioning

confidence: 99%

Resolution of baseline responses and documentation of resistance to buprofezin in Bemisia tabaci (Homoptera: Aleyrodidae)

Cahill

Jarvis

Gorman

et al. 1996

Bull. Entomol. Res.

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The insect growth regulator buprofezin was tested using a leaf-dip assay on immatures of Bemisia tabaci (Gennadius). The method was robust and repeatable, and baseline data were calculated for a laboratory strain and a number of field collections from Pakistan where the insecticide has not been used. A baseline LC 50 of 0.53 ppm buprofezin was defined and compared to other field collections. Populations known or suspected to have been intensively selected with buprofezin showed substantial tolerance to the insecticide at both the LC 50 and at specific diagnostic doses, with the highest resistance factor of 47 fold in a population from the Netherlands. Reasons for the variation between populations, biotypes and geographical areas are discussed and the dangers of human-assisted movement of resistance genes are highlighted.

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Ultrastructural changes in the cuticle of the greenhouse whitefly Trialeurodes vaporariorum, induced by the insect growth inhibitor, buprofezin

Cited by 7 publications

References 13 publications

Isolation of a buprofezin co-metabolizing strain of Pseudomonas sp. DFS35-4 and identification of the buprofezin transformation pathway

Isolation of a buprofezin co-metabolizing strain of Pseudomonas sp. DFS35-4 and identification of the buprofezin transformation pathway

Biodegradation of Buprofezin by Rhodococcus sp. Strain YL-1 Isolated from Rice Field Soil

Resolution of baseline responses and documentation of resistance to buprofezin in Bemisia tabaci (Homoptera: Aleyrodidae)

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