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Uptake and distribution characteristics of the novel fungicide pyraoxystrobin in cucumber plants

The uptake and distribution characteristics of a novel fungicide, pyraoxystrobin, labeled with (14)C on its pyrazol ring, were investigated in cucumber (Cucumis sativus) seedlings. Foliar applied pyraoxystrobin rapidly penetrated the treated leaf and reached a maximum uptake of 68% after 5 d. The tr...

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Detalles Bibliográficos
Autores principales: Liu, Xunyue, Chen, Xia, Ding, Xingcheng, Wu, Huiming
Formato: Online Artículo Texto
Lenguaje:English
Publicado: The Royal Society of Chemistry 2018
Materias:
Acceso en línea:https://www.ncbi.nlm.nih.gov/pmc/articles/PMC9083277/
https://www.ncbi.nlm.nih.gov/pubmed/35539991
http://dx.doi.org/10.1039/c8ra05140b
Descripción
Sumario:The uptake and distribution characteristics of a novel fungicide, pyraoxystrobin, labeled with (14)C on its pyrazol ring, were investigated in cucumber (Cucumis sativus) seedlings. Foliar applied pyraoxystrobin rapidly penetrated the treated leaf and reached a maximum uptake of 68% after 5 d. The translocation of absorbed (14)C in cucumber seedlings was both acropetal and basipetal. However, over 74% of the absorbed (14)C-pyraoxystrobin remained in the treated leaves. The order of its distribution in the plant was as follows: treated leaf > stalk above the treated leaf > leaves above the treated leaf > stalk below the treated leaf > leaves below the treated leaf > cotyledon > root. Seedlings grown in soils containing bound residues (BR) of pyraoxystrobin revealed that the BRs were not easily absorbed or translocated by the plant. Soil type had a large effect on root uptake, with the highest uptake among the three tested soils from red clay.