serves as the primary vector for ' Liberibacter asiaticus (Las),' the bacterium associated with the severe Asian form of huanglongbing. Las-positive are more fecund than their Las-negative counterparts and require extra energy expenditure. Therefore, understanding the molecular mechanisms linking metabolism and reproduction is of particular importance.
View Article and Find Full Text PDFBackground: Over the past two decades, bed bugs (Cimex spp.) have resurged as common urban pests around the world. The search for efficient and safe control measures has become a key interest among researchers, manufacturers, and pest control professionals.
View Article and Find Full Text PDFHot water mound drench treatment has broad application prospects in the control of the red imported fire ant (RIFA), Solenopsis invicta Buren (Hymenoptera: Formicidae). However, much work still needs to be carried out to provide a theoretical basis and technical support for the use of this method against RIFAs under field conditions. In this study, we monitored the temperature changes at different depths within RIFA nests during laboratory-simulated hot water mound drench experiments and evaluated the lethal effect of hot water treatment on RIFAs.
View Article and Find Full Text PDFThe N-methyladenosine (mA) modification of RNA has been reported to remodel gene expression in response to environmental conditions; however, the biological role of mA in social insects remains largely unknown. In this study, we explored the role of mA in the division of labour by worker ants (Solenopsis invicta). We first determined the presence of mA in RNAs from the brains of worker ants and found that mA methylation dynamics differed between foragers and nurses.
View Article and Find Full Text PDFBackground: The bites and blood sucking of bed bugs (Cimex spp.) (Hemiptera: Cimicidae) pose a serious threat to human physical and mental health. Application of an effective repellent can prevent or reduce bed bug bites.
View Article and Find Full Text PDFHuanglongbing, a globally devastating citrus disease, is associated with Liberibacter asiaticus (Las) and is mainly transmitted by . Verification of the distribution and dynamics of Las in is critical to understanding Las transmitted by vectors in nature. Here, the distribution and titers of Las in different sexes and tissues of adults were investigated by fluorescence in-situ hybridization (FISH) and quantitative real-time PCR (qRT-PCR).
View Article and Find Full Text PDFPowdery mildew caused by f. sp. is a threat to wheat production in China.
View Article and Find Full Text PDFFusarium concentricum Nirenberg & O' Donnell (Ascomycota: Hypocreales) is a fungal species known to infect plants, but never reported as entomopathogenic. Polychrosis cunninhamiacola Liu et Pei (Lepidoptera: Tortricidae: Olethreutinae) is a major and widespread insect pest causing economic losses to cultivated Chinese fir Cunninghamia lanceolata (Lamb.) Hook.
View Article and Find Full Text PDFThe tropical bed bug, (F.) (Hemiptera: Cimicidae) is an important public-health pest that feeds on the blood of humans and some other animals. To explore the function of the target genes of , it is essential to select suitable reference genes for the accurate quantification of gene expression.
View Article and Find Full Text PDFRiley is an important natural enemy and biological control agent of lepidopteran pests. is an intracellular endosymbiont that induces parthenogenesis in the parasitoid . In this paper, the sublethal effects of the antibiotic tetracycline hydrochloride on the development and reproduction of were studied.
View Article and Find Full Text PDFTacrolimus is an important immunosuppressant produced by microbial fermentation. In this study, a modified nanoscale polymeric adsorbent, Ag-exchanged resin, was prepared and studied for the preparative separation and purification of tacrolimus from fermentation broth of Streptomyces tsukubaensis. The performance and absorption characteristics of the modified nanoscale polymeric adsorbent namely Ag-NPS was evaluated.
View Article and Find Full Text PDFNumerous bed bug research papers have been published in the past 20 yr as a result of bed bug (Cimex spp.) (Hemiptera: Cimicidae) resurgence in the world. Yet, few of them focused on the management of the tropical bed bug, C.
View Article and Find Full Text PDFis the mainly transmitting vector of the citrus huanglongbing pathogen, which causes severe losses in in the citrus industry. In this study, we isolated a new entomopathogenic fungus, identified as member of based on morphology and ITS sequence analysis. We named SCAU-CFDC01 and evaluated its pathogenicity against nymphs and adults by immersion under laboratory and greenhouse conditions.
View Article and Find Full Text PDFPreharvest sprouting (PHS) significantly reduces grain yield and quality. Identification of genetic loci for PHS resistance will facilitate breeding sprouting-resistant wheat cultivars. In this study, we constructed a genetic map comprising 1,702 non-redundant markers in a recombinant inbred line (RIL) population derived from cross Yangxiaomai/Zhongyou9507 using the wheat 15K single-nucleotide polymorphism (SNP) assay.
View Article and Find Full Text PDFRht-B1b and Rht-D1b, the 'Green Revolution' (GR) genes, greatly improved yield potential of wheat under nitrogen fertilizer application, but reduced coleoptile length, seedling vigor and grain weight. Thus, mining alternative reduced plant height genes without adverse effects is urgently needed. We isolated the causal gene of Rht24 through map-based cloning and characterized its function using transgenic, physiobiochemical and transcriptome assays.
View Article and Find Full Text PDFIn order to investigate the effect of Wolbachia on fitness of their hosts, the biological characteristics of a primarily parthenogenetic line and a bisexual restored line (obtained by antibiotic treatment) of Trichogramma pretiosum were compared in the laboratory. Results indicated that both the mean longevity and fecundity of parthenogenetic line (14.2 d and 165 eggs/female) were significantly higher than those in bisexual restored line (8.
View Article and Find Full Text PDFBed bugs (Cimex spp.) (Hemiptera: Cimicidae) are obligatory blood-sucking insects. Research on their behavioral response to host-derived olfactory cues will be helpful for designing more effective management tools.
View Article and Find Full Text PDFObjective: This study was conducted to enhance the production of tacrolimus in Streptomyces tsukubaensis by strain mutagenesis and optimization of the fermentation medium.
Results: A high tacrolimus producing strain S. tsukubaensis FIM-16-06 was obtained by ultraviolet mutagenesis coupled with atmospheric and room temperature plasma mutagenesis.
The entomopathogenic fungus, is a potential eco-friendly biocontrol agent. The present study revealed the entire course of infection of by with particular reference to cuticular penetration. Comparative studies on the infection of larvae by two strains of with different pathogenicity were carried out using light, scanning, and transmission electron microscopy.
View Article and Find Full Text PDFFrom the 1960s to the 1980s, with the implementation of nationwide 'Four-Pest Elimination' campaigns (bed bugs, Cimex lectularius L. and Cimex hemipterus (F.) (Hemiptera: Cimicidae), were listed as one of the targeted pests), bed bug infestations were gradually eliminated in most provinces in China.
View Article and Find Full Text PDFThe removal of corpses (aka 'necrophoric behavior') is critical to sanitation in ant colonies. However, little is known about differences in the necrophoric responses of Solenopsis invicta workers towards corpses of nestmates and non-nestmates. We introduced corpses of S.
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