Moth orchids ( spp.) are globally popular ornamental flowers. However, effective management strategies for leaf yellowing remain elusive, making the disease a challenging obstacle affecting moth orchids at various growth stages.
View Article and Find Full Text PDFThe mitochondrial genome (mitogenome) (Matsumura, 1909), an endemic moth species in Taiwan, was sequenced and analyzed. The complete circular mitogenome of is 15,303 bp and contains 13 protein-coding genes, 22 transfer RNA genes, 2 ribosomal RNA genes, and an AT-rich control region. The mitogenome has an overall nucleotide composition of 41.
View Article and Find Full Text PDFArch Insect Biochem Physiol
August 2024
Nosema ceranae is a microsporidian parasite that threatens current apiculture. N. ceranae-infected honey bees (Apis mellifera) exhibit morbid physiological impairments and reduced honey production, malnutrition, shorter life span, and higher mortality than healthy honey bees.
View Article and Find Full Text PDFMicrosporidiosis, which is caused by the pathogen , is a prevalent disease in the honey bee () and might lead to significant adult honey bee mortality. In this study, we conducted an annual survey of the mature spore load of in the guts of nurse bees and forager bees in the apiary of National Chung Hsing University (NCHU) in Taiwan. The results indicated that, on average, honey bees hosted approximately 2.
View Article and Find Full Text PDFThe mustard aphid (L. erysimi) is a pest that infests various cruciferous crops and transmits plant viruses. To achieve eco-friendly pest management, entomopathogenic fungi (EPF) are potential microbial control agents for controlling this pest.
View Article and Find Full Text PDFThe gut microflora plays an important role in insect development and physiology. The gut bacterial microbiome of the fall armyworm (FAW), Spodoptera frugiperda, in both cornfield and laboratory-reared populations was investigated using a 16S metagenomic approach. The alpha- and beta-diversity of the cornfield FAW populations varied among sampling sites and were higher than those of the laboratory-reared FAW population, indicating that different diets and environments influence the gut bacterial composition.
View Article and Find Full Text PDFThe entomopathogenic fungus (EPF), is an important and commonly used EPF for microbial control. However, the role of DNA methylation has not been thoroughly studied. Therefore, the whole genomic DNA methylome of one promising EPF isolate, NCHU-157 (Bb-NCHU-157), was investigated by Oxford Nanopore Technologies (ONT).
View Article and Find Full Text PDF(Diptera: Ceratopogonidae) is a nuisance blood-sucking pest to humans in Taiwan. An bite causes itching and redness and usually causes serious harassment to human outdoor activity. In terms of control, chemical pesticides are ineffective.
View Article and Find Full Text PDFis one of the fungal parasites of . It causes physical and behavioral effects in honey bees. However, only a few studies have reported on gene expression profiling during infection.
View Article and Find Full Text PDFNumerous cases and a shortage of resources usually limit wild animal rescue. New technology might save these severely injured wild animals from euthanasia by easing the requirement of intensive medication. Three-dimensional (3D) technologies provide precise and accurate results that improve the quality of medical applications.
View Article and Find Full Text PDFFluvalinate is a widely used insecticide for varroa mite control in apiculture. While most beekeepers have ignored the effects of low levels of fluvalinate on bees, this study aims to demonstrate its effects at very low concentrations. We first used fluvalinate doses ranging from 0.
View Article and Find Full Text PDFMitochondrial DNA B Resour
January 2022
The complete mitochondrial genome (mitogenome) of (Villiard, 1969) is 15,280 bp in length, with the typical gene content and arrangement usually observed in Insecta. It contains 13 protein-coding genes, 22 transfer RNA genes, two ribosomal RNA genes, and one AT-rich region. The overall nucleotide composition of the mitogenome was 39.
View Article and Find Full Text PDFRecent outbreaks of sacbrood virus (SBV) have caused serious epizootic disease in Apis cerana populations across Asia including Taiwan. Earlier phylogenetic analyses showed that cross-infection of AcSBV and AmSBV in both A. cerana and A.
View Article and Find Full Text PDFEntomopathogenic fungi (EPF) are one of the microbial control agents for integrated pest management. To control local or invasive pests, it is important to isolate and select indigenous EPF. Therefore, the soil bait method combined with the insect bait (mealworm, Tenebrio molitor) system was used in this study with some modifications.
View Article and Find Full Text PDFDeformed wing virus (DWV) prevalence is high in honey bee (Apis mellifera) populations. The virus infects honey bees through vertical and horizontal transmission, leading to behavioural changes, wing deformity, and early mortality. To better understand the impacts of viral infection in the larval stage of honey bees, artificially reared honey bee larvae were infected with DWV (1.
View Article and Find Full Text PDFDNA methyltransferases (DNMTs) are a group of proteins that catalyze DNA methylation by transferring a methyl group to DNA. The genetic variation in DNMTs results in differential DNA methylation patterns associated with various biological processes. In fungal species, DNMTs and their DNA methylation profiles were found to be very diverse and have gained many research interests.
View Article and Find Full Text PDFSacbrood virus (SBV) was the first identified bee virus and shown to cause serious epizootic infections in the population of in Taiwan in 2015. Herein, the whole genome sequences of SBVs in and were decoded and designated AcSBV-TW and AmSBV-TW, respectively. The whole genomes of AcSBV-TW and AmSBV-TW were 8776 and 8885 bp, respectively, and shared 90% identity.
View Article and Find Full Text PDFSpillover of honey bee viruses have posed a significant threat to pollination services, triggering substantial effort in determining the host range of the viruses as an attempt to understand the transmission dynamics. Previous studies have reported infection of honey bee viruses in ants, raising the concern of ants serving as a reservoir host. Most of these studies, however, are restricted to a single, local ant population.
View Article and Find Full Text PDFArch Insect Biochem Physiol
December 2020
Research on gut microbiota of phytophagous insects has shown to be important for the physiological functions of insect hosts; however, little is known about the changes in gut microbiota when they are suffering from environmental stress or pathogen infections. During rearing of Phasmotaenia lanyuhensis (Phasmatodea: Phasmatidae), sluggish locomotion was usually followed by the death of the insect with a symptom of melanization in the front part of the abdomen. Therefore, the abnormal individuals were initially classified into moribund, light- and serious-symptom based on the level of abnormal physiological circumstances and melanization.
View Article and Find Full Text PDFMicrobiol Resour Announc
May 2020
A novel putative single-stranded RNA virus was discovered from the transcriptome of a bean bug, , infected with the entomopathogenic fungus JEF-007. The complete genome sequence was 9,915 nucleotides long and encoded a 2,916-amino-acid polyprotein. This virus belonged to based on phylogenetic analysis and was named RiPV-2.
View Article and Find Full Text PDFThe microsporidium is a high prevalent parasite of the European honey bee (). This parasite is spreading across the world into its novel host. The developmental process, and some mechanisms of -infected honey bees, has been studied thoroughly; however, few studies have been carried out in the mechanism of gene expression in during the infection process.
View Article and Find Full Text PDFSince 2016, Apis cerana sacbrood virus (AcSBV) has been recorded in Taiwan. It is epizootic in Apis cerana (Hymenoptera: Apidae) and causing serious loss of A. cerana.
View Article and Find Full Text PDFBackground: The golden birdwing butterfly (Troides aeacus formosanus) is a rarely observed species in Taiwan. Recently, a typical symptom of nuclear polyhedrosis was found in reared T. aeacus larvae.
View Article and Find Full Text PDFRegarding the honey industry, market prices are strongly affected by the origin and composition of products. In particular, the adulteration of honey can be divided into cases of honey being mixed with artificial syrup, the different origin of the adulteration and the presence of cane sugar residue. Unfortunately, recent studies mentioned that most honey is mixed with artificial syrups.
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