Vianey Mendez-Trujillo¹, Benjamín Valdez-Salas², Mario Curiel-Alvarez², Ernesto Beltran-Partida², Arnoldo Alfaro-Corres³, Esaú Ruiz-Sanchez³, Gerardo Bautista-Trujillo⁴, Olivia Tzintzun Camacho⁵, Onecimo Grimaldo-Juarez⁵, Carlos Ceceña-Duran⁵, Carlos Ail-Catzin⁵, Daniel González-Mendoza^5,*

Journal of Renewable Materials, Vol.10, No.10, pp. 2543-2552, 2022, DOI:10.32604/jrm.2022.020965

Abstract The present study was conducted to evaluate the impact of bimetallic nanoparticles (NPs) of copper (Cu) and zinc (Zn) from Crotalaria longirostrata on the insect mortality and cell viability of Phenacoccus solenopsis. The biosynthesis of bimetallic nanoparticles (Cu/Zn-NPs) from C. longirostrata was confirmed by the presence of a single peak around 378 nm. The hydrodynamic diameter of the Cu/Zn nanoparticles varied from 59 to 119 nm and their zeta potential was found to be −30.90 mV. The EDX analysis showed a strong signal for Cu and Zn (8 and 8.6 keV, respectively). The Cu/Zn-NPs showed an effective insecticide activity against P. solenopsis with 63%… More >

JUAN ZHANG², JUN HUANG³, YAYUAN TANG², XIUZHEN LONG¹

BIOCELL, Vol.46, No.1, pp. 195-205, 2022, DOI:10.32604/biocell.2022.016563

Abstract Age-related declines in fertilization success have been reported for a wide range of species. The fertilization of parasitic wasps is closely related to egg production and sperm storage. Aenasius bambawalei (Hymenoptera: Encyridae) is a key parasitic wasp of the important invasive mealybug Phenacoccus solenopsis (Hemiptera: Pseudococcidae). The female offspring ratio of this parasitic wasp was declined with parental age in mass rearing under laboratory conditions. To investigate the molecular mechanisms involved in the reproduction of A. bambawalei, an extensive analysis of the impact of age on transcriptome profile of mated ovaries of this wasp was performed by comparing the gene… More >