Six xiphidiocercariae are described from seven Egyptian snails, includes Cleopatra bulimoides, Malanoides tuberculata, Lymnaea cailliaudi, Bulinus truncatus, Biomphlaria alexandrina and Lanistes carinatus collected from Giza (Abou Rawash) and Qualiobyia (Qualiuob). Details are presented on the morphology, behavior of the cercariae, as well as other larval stages within the snails, with discussion and comparison between the previously described cercariae.
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PeerJ
January 2025
Department of Biology, Appalachian State University, Boone, North Carolina, United States.
Nociception is the process by which sensory neurons detect and encode potentially harmful environmental stimuli to generate behavioral responses. Nociceptor neurons exhibit plasticity in which their sensitivity to noxious stimuli and subsequent ability to drive behavior may be altered by environmental conditions, injury, infection, and inflammation. In some cases, nociceptor sensitization requires regulated changes in gene expression, and recent studies have indicated roles for post-transcriptional mechanisms in regulating these changes as an aspect of nociceptor plasticity.
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June 2025
Infection and Innate Immunity Lab, Department of Biological Sciences, The George Washington University, Washington, DC 20052, USA.
The entomopathogenic nematodes (EPNs) Steinernema carpocapsae and Steinernema hermaphroditum can efficiently infect the fruit fly, Drosophila melanogaster. The EPN infective juvenile (IJ) stage is the free-living and non-feeding stage that seeks out suitable insects to infect. While previous studies have described successful infection of melanogaster larvae with a standard amount of 100 IJs, the pathogenicity of a single IJ nematode towards insects remains poorly understood.
View Article and Find Full Text PDFDevelopment
January 2025
Department of Immunology and Microbiology, School of Life Sciences, Southern University of Science and Technology, Shenzhen 518055, China.
Dendritic cells (DCs) are key cellular components of the immune system and perform critical functions in innate and acquired immunity. In mammals, it is generally believed that DCs originate exclusively from hematopoietic stem cells (HSCs). Using a temporal-spatial resolved fate-mapping system, here we show that in zebrafish, DCs arise from two sources: dorsal aorta-born endothelium-derived hematopoietic progenitors (EHPs) and HSCs.
View Article and Find Full Text PDFBull Entomol Res
January 2025
College of Plant Protection, Jilin Agricultural University, Changchun, 130118, PR China.
The Asian corn borer, (Guenée), emerges as a significant threat to maize cultivation, inflicting substantial damage upon the crops. Particularly, its larval stage represents a critical point characterised by significant economic consequences on maize yield. To manage the infestation of this pest effectively, timely and precise identification of its larval stages is required.
View Article and Find Full Text PDFPest Manag Sci
January 2025
Shenzhen Branch, Guangdong Laboratory of Lingnan Modern Agriculture, Key Laboratory of Synthetic Biology, Ministry of Agriculture and Rural Affairs, Agricultural Genomics Institute at Shenzhen, Chinese Academy of Agricultural Sciences, Shenzhen, China.
Background: Exogenous double-stranded RNA (dsRNA) has the potential to serve as an effective alternative to conventional chemical pesticides for the control of insect pests, because it can specifically inhibit essential gene expression in these organisms. However, identifying suitable gene targets remains a crucial step in the development of RNA interference (RNAi)-based pest control strategies.
Results: In this study, three apoptosis-related genes were selected to evaluate their potential for RNAi-induced lethality in Henosepilachna vigintioctopunctata via foliar spray dsRNAs.
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