Exploring the effects of the acaricide cyflumetofen on the vital organs of the honey bee Apis mellifera (Hymenoptera: Apidae) workers.

Autor: Reis AB; Departamento de Biologia Geral, Universidade Federal de Viçosa, 36570-900 Viçosa, Minas Gerais, Brazil., Oliveira MS; Departamento de Biologia Geral, Universidade Federal de Viçosa, 36570-900 Viçosa, Minas Gerais, Brazil. Electronic address: mateus.oliveira1@ufv.br., Souza DDS; Departamento de Entomologia, Universidade Federal de Viçosa, 36570-900 Viçosa, Minas Gerais, Brazil. Electronic address: diego.s.souza@ufv.br., Gomes DS; Departamento de Biologia Geral, Universidade Federal de Viçosa, 36570-900 Viçosa, Minas Gerais, Brazil. Electronic address: davy.gomes@ufv.br., Silva LLD; Departamento de Biologia Geral, Universidade Federal de Viçosa, 36570-900 Viçosa, Minas Gerais, Brazil. Electronic address: laryssa.silva@ufv.br., Martínez LC; Facultad de Ciencias Agrícolas, Universidad de Nariño, 602-7244309 Pasto, Nariño, Colombia. Electronic address: lcmartinez@udenar.edu.co., Serrão JE; Departamento de Biologia Geral, Universidade Federal de Viçosa, 36570-900 Viçosa, Minas Gerais, Brazil. Electronic address: jeserrao@ufv.br.
Jazyk: angličtina
Zdroj: The Science of the total environment [Sci Total Environ] 2024 Jun 15; Vol. 929, pp. 172640. Date of Electronic Publication: 2024 Apr 24.
DOI: 10.1016/j.scitotenv.2024.172640
Abstrakt: Bees are important for maintaining ecosystems, pollinating crops and producing marketable products. In recent years, a decline in bee populations has been reported, with multifactorial causes, including the intensification of pesticide use in agriculture. Among pesticides, cyflumetofen is an insecticide and acaricide used in apple, coffee and citrus crops, whose main pollinator is the honey bee Apis mellifera. Therefore, this bee is a potential target of cyflumetofen during foraging. This study evaluated the histopathological and cytological damage in the midgut, hypopharyngeal glands and fat body of A. mellifera workers exposed to LC 50 of cyflumetofen. The midgut epithelium of exposed bees presented cytoplasmic vacuolization, release of vesicles and cell fragments, which indicate autophagy, increased production of digestive enzymes and cell death, respectively. The cytological analysis of the midgut revealed the dilation of the basal labyrinth and the presence of spherocrystals in the digestive cells. The hypopharyngeal glands produced greater amounts of secretion in treated bees, whereas no changes were observed in the fat body. The results indicate that acute exposure to cyflumetofen negatively affect A. mellifera, causing damage to the midgut and changes in the hypopharyngeal glands, which may compromise the survival and foraging of this pollinator.
Competing Interests: Declaration of competing interest The authors confirm that they have no conflicts of interest with respect to the work described in this manuscript.
(Copyright © 2024 Elsevier B.V. All rights reserved.)
Databáze: MEDLINE
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