PMID- 30613891 OWN - NLM STAT- MEDLINE DCOM- 20190527 LR - 20221207 IS - 1614-7499 (Electronic) IS - 0944-1344 (Linking) VI - 26 IP - 6 DP - 2019 Feb TI - Uptake and distribution of fluopyram and tebuconazole residues in tomato and bell pepper plant tissues. PG - 6077-6086 LID - 10.1007/s11356-018-04071-4 [doi] AB - The present study describes the uptake and distribution of fungicides, fluopyram, and tebuconazole in tomato and bell pepper plant tissues from the soil drench application of their combination product fluopyram17.7% + tebuconazole 17.7%. For extraction and cleanup of fluopyram, its metabolite fluopyram benzamide, and tebuconazole samples, the QuEChERS method was used in conjunction with LC-MS/MS. The limit of detection (LOD) and limit of quantification (LOQ) of the method determined were 1.5 mug kg(-1) and 0.005 mg kg(-1), respectively, and recoveries of all analytes from sample matrices remained within the acceptable range of 70-120%. Rapid uptake of the fungicides by tomato and bell pepper plants was observed from the first day onwards. In the tomato plant, the major part of the fungicides accumulated in the roots, whereas in bell pepper plant, it accumulated both in the roots and in the leaves. Accumulation of fluopyram and tebuconazole residues was lowest in tomato and bell pepper fruits which were much below their respective maximum residue limits (MRLs). The highest residue concentration of fluopyram and tebuconazole in tomato fruits was 0.060 and 0.009 mg kg(-1); the corresponding values in bell pepper fruits were 0.080 and 0.013 mg kg(-1). In field soil, fluopyram residues were 3.18-3.570 mg kg(-1) initially which dissipated at the half-life of 36 days. Tebuconazole concentration was 1.57-1.892 mg kg(-1) initially, and it dissipated at the half-life of 44.5-49.5 days. The major metabolite of fluopyram, fluopyram benzamide, was detected in plant tissues as well as in soil, and remained within 12% of the parent compound. The results of the study indicated that fluopyram and tebuconazole are less likely of entry into food chain through intake of tomato and bell pepper fruits if these crops are grown on soil contaminated with these fungicides. FAU - Matadha, Nagapooja Yogendraiah AU - Matadha NY AD - Pesticide Residue Laboratory, ICAR-Indian Institute of Horticultural Research, Hesaraghatta Lake, Bangalore, 560089, India. AD - Department of chemistry, Center for Nano and Material Science, Jain University, Jakkasandra, Kanakpura, Bangalore, 562112, India. FAU - Mohapatra, Soudamini AU - Mohapatra S AUID- ORCID: 0000-0002-1849-709X AD - Pesticide Residue Laboratory, ICAR-Indian Institute of Horticultural Research, Hesaraghatta Lake, Bangalore, 560089, India. soudamini_mohapatra@rediffmail.com. FAU - Siddamallaiah, Lekha AU - Siddamallaiah L AD - Pesticide Residue Laboratory, ICAR-Indian Institute of Horticultural Research, Hesaraghatta Lake, Bangalore, 560089, India. FAU - Udupi, Veena Rao AU - Udupi VR AD - Pesticide Residue Laboratory, ICAR-Indian Institute of Horticultural Research, Hesaraghatta Lake, Bangalore, 560089, India. FAU - Gadigeppa, Shambulinga AU - Gadigeppa S AD - Pesticide Residue Laboratory, ICAR-Indian Institute of Horticultural Research, Hesaraghatta Lake, Bangalore, 560089, India. FAU - Raja, Danish Poothotathil AU - Raja DP AD - Pesticide Residue Laboratory, ICAR-Indian Institute of Horticultural Research, Hesaraghatta Lake, Bangalore, 560089, India. LA - eng PT - Journal Article DEP - 20190106 PL - Germany TA - Environ Sci Pollut Res Int JT - Environmental science and pollution research international JID - 9441769 RN - 0 (Benzamides) RN - 0 (Fungicides, Industrial) RN - 0 (Pesticide Residues) RN - 0 (Pyridines) RN - 0 (Soil Pollutants) RN - 0 (Triazoles) RN - 401ATW8TRW (tebuconazole) RN - F0VT7K5302 (N-(2-(3-chloro-5-(trifluoromethyl)-2-pyridyl)ethyl)-alpha,alpha,alpha-trifluoro-o-toluamide) SB - IM MH - Benzamides/*analysis/pharmacokinetics MH - Capsicum/*chemistry MH - Chromatography, Liquid MH - Fruit/chemistry MH - Fungicides, Industrial/analysis/pharmacokinetics MH - Half-Life MH - Solanum lycopersicum/*chemistry MH - Pesticide Residues/*analysis/pharmacokinetics MH - Pyridines/*analysis/pharmacokinetics MH - Reproducibility of Results MH - Soil Pollutants/*analysis MH - Tandem Mass Spectrometry MH - Triazoles/*analysis/pharmacokinetics OTO - NOTNLM OT - Bell pepper OT - Fluopyram OT - LC-MS/MS OT - Tebuconazole OT - Tomato OT - Uptake EDAT- 2019/01/08 06:00 MHDA- 2019/05/28 06:00 CRDT- 2019/01/08 06:00 PHST- 2018/08/13 00:00 [received] PHST- 2018/12/27 00:00 [accepted] PHST- 2019/01/08 06:00 [pubmed] PHST- 2019/05/28 06:00 [medline] PHST- 2019/01/08 06:00 [entrez] AID - 10.1007/s11356-018-04071-4 [pii] AID - 10.1007/s11356-018-04071-4 [doi] PST - ppublish SO - Environ Sci Pollut Res Int. 2019 Feb;26(6):6077-6086. doi: 10.1007/s11356-018-04071-4. Epub 2019 Jan 6.