Quality control and characterization of the testicles and ovaries of irradiated Anastrepha obliqua from Brazil

Abstract

With the aim of making the application of the Sterile Insect Technique (SIT) feasible in the management of the West Indian fruit fly in Brazil, Anastrepha obliqua (Macquart) (Diptera: Tephritidae), a number of quality parameters required by the SIT were investigated in this study. The aim was to verify the influence of a range of doses of gamma radiation (40, 50, 60, 70 and 80 Gy) on the fertility of females and to evaluate several quality control parameters, such as fly emergence, sex ratio, flight ability and survival under stress, as well as the characterization of the morphology (measurement of length and width) of the ovaries and testicles of A. obliqua.

Determining the Sterilization Doses under Hypoxia for the Novel Black Pupae Genetic Sexing Strain of Anastrepha fraterculus (Diptera, Tephritidae)

“…For C. capitata , the sterilizing doses under normoxia are between 70 and 100 Gy, while under hypoxia they have been estimated at between 90 and 160 Gy [ 49 , 50 , 51 , 52 , 53 ]. In the genus Anastrepha , pupae from A. ludens and Anastrepha obliqua (Macquart) can be sterilized under hypoxia with 70–80 Gy, but under normoxia lower doses are required for the same species (i.e., 30–40 Gy and 40–60 Gy, respectively) [ 44 , 54 , 55 , 56 , 57 , 58 ]. For A. suspensa , the sterilizing doses under normal and low-oxygen conditions are 50 and 70 Gy, respectively [ 13 , 15 ].…”

Sensores multiespectrais para detecção dos efeitos da radiação gama na qualidade de sementes de soja

“…Largamente utilizada nas áreas biológicas, a técnica de radiação gama também é considerada um eficiente método em procedimentos de desinfestação de artefatos de madeira, visando eliminar agentes que degradam a madeira como insetos, fungos e bactérias (Katušin-Ražem et al, 2009;Fairand, Ražem, 2010;Severiano et al, 2010). Na entomologia, é utilizada para produzir insetos estéreis visando reduzir a multiplicação de pragas urbanas e agrícolas transmissoras de doenças (Lanouette et al, 2017;Mastrangelo et al, 2017;Bond et al, 2019;Machi et al, 2019;Costa et al, 2020;De Beer et al, 2020;Ramadhani et al, 2020). Na indústria alimentícia é aplicada para aumentar a segurança alimentar e vida útil dos produtos vegetais, impedindo a proliferação de fungos e bactérias, além de atrasar a brotação de bulbos e tubérculos, e retardar o amadurecimento de frutas e legumes (Andrews et al, 1998;Lacroix e Ouattara, 2005;Perozzi, 2007).…”