Investigation of biochemical and enzymatic changes induced by emulsion and nanoemulsion formulations of some essential oils and an herbal extract on Bemisia tabaci (Gennadius)

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Bolandnazar Alireza; GHADAMYARI MOHAMMAD; Memarzadeh Mohammadreza; Jalali Sandi Jalil; ZOLFAGHARI MARYAM

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Journal: Iranian Journal of Plant Protection Science Year:2020 | Volume:50 | Issue:2 Page(s): 143-158

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Title

Investigation of biochemical and enzymatic changes induced by emulsion and nanoemulsion formulations of some essential oils and an herbal extract on Bemisia tabaci (Gennadius)

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Keywords

Botanical insecticideQ1

biochemical parametersQ2

essential oilQ1

nanoemulsionQ1

sweet potato whiteflyQ2

Abstract

Some essential oils and plant extracts have shown suitable insecticidal properties against the sweet potato whitefly, Bemisia tabaci. In this study, essential oils of rosemary, peppermint and eucalyptus and extract of thyme were formulated separately in Tween 80 as well as formulated in the form of nanoemulsion and bioassyed against 2nd instar nymphs of B. tabaci. The bioassay tests were done by leaf dip method on the leaves containing 2nd instar nymphs and LC50s were determined. The LC50 of rosemary, peppermint, eucalyptus essential oils and thyme extract prepared in Tween 80 were estimated as 4198, 3925, 4312 and 9626 mL/L and LC50 of nanoemulsion of above items were estimated as 2759, 2987, 3189 and 5659 mL/L, respectively. The results showed that nanoemulsion of rosemary and peppermint essential oils have the highest toxicity on the 2nd instar nymphs of B. tabaci. Also, effects of combination of essential oils and extract formulation on biochemical and enzymatic changes were investigated with LC50 of T1 (emulsified from essential oils and the extract), T2 (extract emulsion) and T3 (emulsification of essential oils). The amount of activities of esterases and glutathione s-transferases were increased in T1, T2 and T3 treatments; while, the cholinesterase activity was not affected. The amount of energy reserves (total lipid, carbohydrate and protein) decreased significantly in T1 and T3 treatments; although the amount of total glycogen was not affected significantly by treatments. Therefore, T1 and T3 treatments showed a greater effect on the biochemical parameters, by induction of detoxification of some enzymes and reducing some of the energy reserves, in 2nd instar nymphs of sweet potato whitefly.

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APA: Copy

Bolandnazar, Alireza, GHADAMYARI, MOHAMMAD, Memarzadeh, Mohammadreza, Jalali Sandi, Jalil, & ZOLFAGHARI, MARYAM. (2020). Investigation of biochemical and enzymatic changes induced by emulsion and nanoemulsion formulations of some essential oils and an herbal extract on Bemisia tabaci (Gennadius). IRANIAN JOURNAL OF PLANT PROTECTION SCIENCE (IRANIAN JOURNAL OF AGRICULTURAL SCIENCES), 50(2 ), 143-158. SID. https://sid.ir/paper/368459/en

Vancouver: Copy

Bolandnazar Alireza, GHADAMYARI MOHAMMAD, Memarzadeh Mohammadreza, Jalali Sandi Jalil, ZOLFAGHARI MARYAM. Investigation of biochemical and enzymatic changes induced by emulsion and nanoemulsion formulations of some essential oils and an herbal extract on Bemisia tabaci (Gennadius). IRANIAN JOURNAL OF PLANT PROTECTION SCIENCE (IRANIAN JOURNAL OF AGRICULTURAL SCIENCES)[Internet]. 2020;50(2 ):143-158. Available from: https://sid.ir/paper/368459/en

IEEE: Copy

Alireza Bolandnazar, MOHAMMAD GHADAMYARI, Mohammadreza Memarzadeh, Jalil Jalali Sandi, and MARYAM ZOLFAGHARI, “Investigation of biochemical and enzymatic changes induced by emulsion and nanoemulsion formulations of some essential oils and an herbal extract on Bemisia tabaci (Gennadius),” IRANIAN JOURNAL OF PLANT PROTECTION SCIENCE (IRANIAN JOURNAL OF AGRICULTURAL SCIENCES), vol. 50, no. 2 , pp. 143–158, 2020, [Online]. Available: https://sid.ir/paper/368459/en

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