葡萄糖基-氟虫腈偶合物、氟虫腈、噻虫嗪和阿维菌素在大豆木质部的输导性比较

【目的】通过比较葡萄糖基-氟虫腈偶合物（GTF）与氟虫腈、噻虫嗪和阿维菌素在大豆Glycine max植株内的分布差异,评价4种农药的木质部输导性。【方法】选取大豆幼苗作为供试植物,采用药液浸根的处理方法,研磨提取后利用高效液相色谱法（HPLC）检测根、茎、叶3部分药物含量,以地上部分输导量评价4种农药木质部输导性。【结果】GTF具有优越的木质部输导性,进入大豆后能较为均匀地分布;噻虫嗪木质部输导性高效,向顶分布明显,短时间即达到饱和;氟虫腈大量在根部积累,仅具有较弱的木质部输导性;阿维菌素能渗透进入大豆根部并积累,但无法向上转运,不具有木质部输导性。【结论】糖基的引入能够显著改善氟虫腈的木质...

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Bibliographic Details
Published in华南农业大学学报 Vol. 37; no. 2; pp. 84 - 88
Main Author 李豫丰 解云 徐汉虹
Format Journal Article
LanguageChinese
Published 华南农业大学农学院,广东广州,510642 2016
Subjects
内吸性农药
木质部输导性
葡萄糖基-氟虫腈偶合物
高效液相色谱
glucose-fipronil conjugate
木质部输导性
xylem mobility
内吸性农药
高效液相色谱
systemic pesticide
葡萄糖基-氟虫腈偶合物
HPLC
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ISSN1001-411X
DOI10.7671/j.issn.1001-411X.2016.02.013

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Summary:【目的】通过比较葡萄糖基-氟虫腈偶合物（GTF）与氟虫腈、噻虫嗪和阿维菌素在大豆Glycine max植株内的分布差异,评价4种农药的木质部输导性。【方法】选取大豆幼苗作为供试植物,采用药液浸根的处理方法,研磨提取后利用高效液相色谱法（HPLC）检测根、茎、叶3部分药物含量,以地上部分输导量评价4种农药木质部输导性。【结果】GTF具有优越的木质部输导性,进入大豆后能较为均匀地分布;噻虫嗪木质部输导性高效,向顶分布明显,短时间即达到饱和;氟虫腈大量在根部积累,仅具有较弱的木质部输导性;阿维菌素能渗透进入大豆根部并积累,但无法向上转运,不具有木质部输导性。【结论】糖基的引入能够显著改善氟虫腈的木质部输导性。对杀虫剂进行糖基化修饰为内吸性农药开发提供了新的思路。
Bibliography:glucose-fipronil conjugate ; systemic pesticide ; xylem mobility ; HPLC
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[ Objective ] In order to evaluate the xylem mobility of four different pesticides, including glu- cose-fipronil conjugate GTF and three types of commodity pesticides （fipronil, thiamethoxam and abam- ectin） in plants. [ Method ] The roots of soybean seedlings were immersed in solutions containing one of those pesticides. After grinding and extracting the roots, stems and leaves, high performance liquid chro- matograph （HPLC） was used to detect the pesticide contents of the extracts. The xylem mobility was re- presented by the pesticide content conducted to the above ground part of the seedling. [ Result] GTF had superior xylem mobility with relatively uniform distribution after entering the plants. Thiamethoxam exhib- ited efficient xylem mobility, mainly concentrated in the upper part of the plants, and was able to saturate in a short time. Fipronil had relatively weak xylem mobility, and most concentrated in the roots. Abam- ec
ISSN:1001-411X
DOI:10.7671/j.issn.1001-411X.2016.02.013