journal
https://read.qxmd.com/read/38537687/the-bombyx-mori-g-protein-%C3%AE-subunit-1-bmgn%C3%AE-1-gene-inhibits-bmnpv-infection
#1
JOURNAL ARTICLE
Linyuan Yu, Chenyu Ling, Yizhu Li, Huiduo Guo, Anying Xu, Heying Qian, Gang Li
G protein β subunit 1 (GNβ1) has several functions, including cell growth regulation, the control of second messenger levels, and ion channel switching. Previous transcriptome analyses in our laboratory have shown that BmGNβ1 transcription is reduced following infection with Bombyx mori nucleopolyhedrovirus (BmNPV), but it is unknown what role this gene may have in the host response to BmNPV infection. In this study, the BmGNβ1 gene was cloned using the RACE method. After BmNPV infection, BmGNβ1 was downregulated in Baiyu strains in tissues such as the hemolymph and midgut...
March 25, 2024: Journal of Invertebrate Pathology
https://read.qxmd.com/read/38499284/enhanced-baculoviral-virulence-by-suppressing-the-degradation-of-an-insect-immune-resolvin-epoxyoctadecamonoenoic-acid-in-three-lepidopteran-insects
#2
JOURNAL ARTICLE
Niayesh Shahmohammadi, Mojtaba Esmaeily, Eticha Abdisa, Eeshita Mandal, Yonggyun Kim
Epoxyoctadecamonoenoic acids (EpOMEs) are produced from linoleic acid by a cytochrome P450 monooxygenase (CYP) and play a crucial role in terminating excessive and unnecessary immune responses during the late infection stage in insects. This suggests that an increase in the EpOME level may enhance the virulence of insect pathogens against pests. This study tested this hypothesis using a specific inhibitor against soluble epoxide hydrolase (sEH) to degrade EpOMEs, which leads to elevated endogenous EpOME levels...
March 16, 2024: Journal of Invertebrate Pathology
https://read.qxmd.com/read/38494086/transcriptomic-evidence-of-a-fourth-mininucleovirus-mininucleoviridae-a-rapidly-growing-family-among-the-nucleo-cytoplasmic-large-dna-viruses-ncldvs
#3
JOURNAL ARTICLE
Amy L Burgess, Jamie Bojko
The Mininucleoviridae are crustacean-infecting viruses thought to drive mortality across aquatic biomes. Three have been characterised from Carcinus maenas, Panulirus argus, and Dikerogammarus haemobaphes. We screened 202 SRA datasets (NCBI) for novel mininucleoviruses from 44 amphipod species. Three metatranscriptome datasets from Gammarus lacustris contained sequences with similarity to Dikerogammarus haemobaphes mininucleovirus. Assembly resulted in 19 transcripts, 16 were putatively polycistronic. The putative Gammarus lacustris mininucleovirus shares 46 homologues with other mininucleoviruses (similarity range: 24...
March 15, 2024: Journal of Invertebrate Pathology
https://read.qxmd.com/read/38479456/bacteria-isolated-from-aedes-aegypti-with-potential-vector-control-applications
#4
JOURNAL ARTICLE
Juan Campos de Oliveira, Ricardo de Melo Katak, Veranilce Alves Muniz, Marta Rodrigues de Oliveira, Elerson Matos Rocha, William Ribeiro da Silva, Edson Júnior do Carmo, Rosemary Aparecida Roque, Osvaldo Marinotti, Olle Terenius, Spartaco Astolfi-Filho
Highly anthropophilic and adapted to urban environments, Aedes aegypti mosquitoes are the main vectors of arboviruses that cause human diseases such as dengue, zika, and chikungunya fever, especially in countries with tropical and subtropical climates. Microorganisms with mosquitocidal and larvicidal activities have been suggested as environmentally safe alternatives to chemical or mechanical mosquito control methods. Here, we analyzed cultivable bacteria isolated from all stages of the mosquito life cycle for their larvicidal activity against Ae...
March 11, 2024: Journal of Invertebrate Pathology
https://read.qxmd.com/read/38479455/incidence-of-mud-crab-reovirus-mcrv-outbreak-in-polyculture-ponds-of-andhra-pradesh-south-east-coast-of-india
#5
JOURNAL ARTICLE
Savva Sravani, Ayyaru Gopalakrishnan, Anisha Shafni John, Ramasamy Ramasubramanian, Gopalakrishnan Kesavaperumal, Narayanan Marimuthu Prabhu, Balu Dhasarathan, Sithranga Boopathy Natarajan
Reovirus designated as Mud crab reovirus (MCRV) is associated with the mass mortalities of mud crabs resulting in significant economic loss to crab and shrimp-mud crab polyculture farmers in Nagayalanka, Krishna district, Andhra Pradesh. The 100 % chronic mass mortalities have been attributed with the outbreak of Mud crab reovirus (MCRV) in the polyculture farms. The moribund crabs showed autotomy, discoloration of carapace, loss of appetite, slow movement and loose gills. Histopathological observations of the infected mud crabs showed an atrophied hepatopancreas, complete degeneration of tissues along with viral inclusions in hepatopancreas, gills and muscles...
March 11, 2024: Journal of Invertebrate Pathology
https://read.qxmd.com/read/38479454/prevalence-and-intensity-of-a-rickettsiales-like-organism-in-cultured-pleasure-oyster-crassostrea-corteziensis-from-nayarit-mexico
#6
JOURNAL ARTICLE
Teresita Del Carmen Guarneros Martínez, Jorge Cáceres-Martínez, Roberto Cruz-Flores, Antonio López-Carvallo, Miguel Ángel Del Río-Portilla, Yanet Guerrero Rentería
Fastidious endosymbiotic Rickettsiales-like organisms (RLO) have been observed in the digestive diverticula of the cultured pleasure oyster (Crassostrea corteziensis) from Nayarit, Mexico since 2007. In a few mollusk species, these bacteria have been associated with mortality events and production losses. The type of relationship between the RLO and the pleasure oyster is largely unknown and further investigations are needed to determine if these bacteria warrant management concern in C. corteziensis. In this study, the morphological characteristics of the RLO were studied by histology and SEM, and the taxonomic affiliations of the bacteria were evaluated by 16S rRNA amplicon sequencing...
March 11, 2024: Journal of Invertebrate Pathology
https://read.qxmd.com/read/38462166/overcoming-research-challenges-in-vitro-cultivation-of-ameson-portunus-phylum-microsporidia
#7
JOURNAL ARTICLE
Ming Fu, Hongnan Qu, Yongliang Wang, Jingyu Guan, Tian Xia, Kai Zheng, Liyuan Tang, Chunxue Zhou, Huaiyu Zhou, Wei Cong, Jinyong Zhang, Bing Han
Ameson portunus is an intracellular pathogen that infects marine crabs Portunus trituberculatus and Scylla paramamosain, causing significant economic losses. However, research into this important parasite has been limited due to the absence of an in vitro culture system. To address this challenge, we developed an in vitro cultivation model of A. portunus using RK13 cell line in this study. The fluorescent labeling assay indicated a high infection rate (∼60 %) on the first day post-infection and quantitative PCR (qPCR) detection demonstrated successful infection as early as six hours post-inoculation...
March 8, 2024: Journal of Invertebrate Pathology
https://read.qxmd.com/read/38458350/the-bbotf1-zn-%C3%A2-2-cys-6-transcription-factor-contributes-to-antioxidant-response-fatty-acid-assimilation-peroxisome-proliferation-and-infection-cycles-in-insect-pathogenic-fungus-beauveria-bassiana
#8
JOURNAL ARTICLE
Chenhua Zhu, Jingxin Sun, Fangfang Tian, Xinting Tian, Qi Liu, Yunxia Pan, Yongjun Zhang, Zhibing Luo
The abilities to withstand oxidation and assimilate fatty acids are critical for successful infection by many pathogenic fungi. Here, we characterized a Zn(II)2 Cys6 transcription factor Bbotf1 in the insect pathogenic fungus Beauveria bassiana, which links oxidative response and fatty acid assimilation via regulating peroxisome proliferation. The null mutant ΔBbotf1 showed impaired resistance to oxidants, accompanied by decreased activities of antioxidant enzymes including CATs, PODs and SODs, and down-regulated expression of many antioxidation-associated genes under oxidative stress condition...
March 6, 2024: Journal of Invertebrate Pathology
https://read.qxmd.com/read/38458349/genetic-diversity-of-the-entomopathogenic-fungus-metarhizium-rileyi-based-on-de-novo-microsatellite-markers
#9
JOURNAL ARTICLE
Tamires Doroteo de Souza, Sara Mataroli de Godoy, Daniele C Feliciano, Eliseu Binneck, Drauzio E N Rangel, Daniel R Sosa-Gómez
Epizootics of the entomopathogenic fungus Metarhizium rileyi regulate lepidopteran populations in soybean, cotton, and peanut agroecosystems to the point that insecticide applications could be unnecessary. However, the contribution and how different strains operate during the epizootic are unknown. Several unanswered questions remain: 1. How many genotypes of M. rileyi are present during an epizootic? 2. Which genotype is the most common among them? 3. Are the genotypes involved in annual epizootics at the same location the same? Therefore, the development of molecular markers to accurately identify these genotypes is very important to answer these questions...
March 6, 2024: Journal of Invertebrate Pathology
https://read.qxmd.com/read/38452853/facultatively-ectoparasitic-mites-as-vectors-for-entomopathogenic-bacteria-in-drosophila
#10
JOURNAL ARTICLE
Emily K Stone, Emily S Durkin, Andrew Cook, Elise A Richardson, Brian P Lazzaro, Carl N Keiser
Opportunistic bacterial infections are common in insect populations but there is little information on how they are acquired or transmitted. We tested the hypothesis that Macrocheles mites can transmit systemic bacterial infections between Drosophila hosts. We found that 24% of mites acquired detectable levels of bacteria after feeding on infected flies and 87% of infected mites passed bacteria to naïve recipient flies. The probability that a mite could pass Serratia from an infected donor fly to a naïve recipient fly was 27...
March 6, 2024: Journal of Invertebrate Pathology
https://read.qxmd.com/read/38447863/proteome-analysis-of-outer-membrane-vesicles-from-vibrio-parahaemolyticus-causing-acute-hepatopancreatic-necrosis-disease
#11
JOURNAL ARTICLE
Lihan Wang, Qifan Zeng, Jingjie Hu, Zhenmin Bao, Mengqiang Wang
A specific strain of Vibrio parahaemolyticus (VpAHPND) causes acute hepatopancreatic necrosis disease (AHPND), leading to significant losses in shrimp aquaculture. Outer membrane vesicles (OMVs) are naturally secreted by Gram-negative bacteria, and their significant roles in host-pathogen interactions and pathogenicity have been recognized. In the present study, OMVs were isolated from VpAHPND by differential-ultracentrifugation and used for proteomics analysis. In the Nano-HPLC-MS/MS analysis, totally 645 proteins were determined, including virulence factors, immunogenic proteins, outer membrane protein, bacterial secretory proteins, ribosomal proteins, protease, and iron regulation proteins...
March 4, 2024: Journal of Invertebrate Pathology
https://read.qxmd.com/read/38447862/community-composition-of-the-entomopathogenic-fungal-genus-metarhizium-in-soils-of-tropical-and-temperate-conventional-and-organic-strawberry-fields
#12
JOURNAL ARTICLE
Natasha Sant Anna Iwanicki, Thiago Rodrigues de Castro, Jørgen Eilenberg, Nicolai V Meyling, Rafael de Andrade Moral, Clarice Garcia Borges Demétrio, Italo Delalibera
Studies on community composition and population structure of entomopathogenic fungi are imperative to link ecosystem functions to conservation biological control. We studied the diversity and abundance of Metarhizium spp. from soil of conventionally and organically farmed strawberry crops and from the adjacent field margins in two different climatic zones: Brazil (tropical) and Denmark (temperate), using the same isolating methods. In Brazilian strawberry soil, Metarhizium robertsii (n = 129 isolates) was the most abundant species, followed by M...
March 4, 2024: Journal of Invertebrate Pathology
https://read.qxmd.com/read/38438078/activity-of-natural-occurring-entomopathogenic-fungi-on-nymphal-and-adult-stages-of-philaenus-spumarius
#13
JOURNAL ARTICLE
Bodino Nicola, Barbera Riccardo, González-Mas Natalia, Demichelis Stefano, Bosco Domenico, Dolci Paola
The spittlebug Philaenus spumarius (Hemiptera: Aphrophoridae) is the predominant vector of Xylella fastidiosa (Xanthomonadales: Xanthomonadaceae) in Apulia, Italy and the rest of Europe, Current control strategies of the insect vector rely on mechanical management of nymphal stages and insecticide application against adult populations, Entomopathogenic fungi (EPF) are biological control agents naturally attacking spittlebugs and may effectively reduce population levels of host species, Different experimental trials in controlled conditions have been performed to i) identify naturally occurring EPF on P, spumarius in Northwestern Italy, and ii) evaluate the potential for biocontrol of the isolated strains on both nymphal and adult stages of the spittlebug, Four EPF species were isolated from dead P, spumarius collected in semi-field conditions: Beauveria bassiana, Conidiobolus coronatus, Fusarium equiseti and Lecanicillium aphanocladii, All the fungal isolates showed entomopathogenic potential against nymphal stages of P, spumarius (≈ 45 % mortality), except for F, equiseti, in preliminary trials, No induced mortality was observed on adult stage, Lecanicillium aphanocladii was the most promising fungus and its pathogenicity against spittlebug nymphs was further tested in different formulations (conidia vs blastospores) and with natural adjuvants, Blastospore formulation was the most effective in killing nymphal instars and reducing the emergence rate of P, spumarius adults, reaching mortality levels (90%) similar to those of the commercial product Naturalis®, while no or adverse effect of natural adjuvants was recorded, The encouraging results of this study pave way for testing EPF isolates against P, spumarius in field conditions and find new environmentally friendly control strategies against insect vectors of X, fastidiosa...
March 2, 2024: Journal of Invertebrate Pathology
https://read.qxmd.com/read/38432354/an-electrochemical-immunosensor-based-on-hybrid-self-assembled-monolayers-for-rapid-detection-of-bombyx-mori-nucleopolyhedrovirus
#14
JOURNAL ARTICLE
Xiaomei Sun, Guizhen Song, Zengjuan Hu, Wenjing Zhang, Ning Luo, Huiju Gao
Bombyx mori nucleopolyhedrovirus (BmNPV) is highly contagious and poses a serious threat to sericulture production. Because there are currently no effective treatments for BmNPV, a rapid and simple detection method is urgently needed. This paper describes an electrochemical immunosensor for the detection of BmNPV. The immunosensor was fabricated by covalently immobilizing anti-BmNPV, a biorecognition element, onto the surface of the working gold electrode via 11-mercaptoundecanoic acid (MUA)/β-mercaptoethanol (ME) hybrid self-assembled monolayers...
March 1, 2024: Journal of Invertebrate Pathology
https://read.qxmd.com/read/38402946/attraction-of-entomopathogenic-nematodes-to-black-truffle-and-its-volatile-organic-compounds-a-new-approach-for-truffle-beetle-biocontrol
#15
JOURNAL ARTICLE
Ivan Julià, Ivan Hiltpold, Ana Morton, Fernando Garcia-Del-Pino
The European truffle beetle, Leiodes cinnamomeus, is the most important pest in black truffle (Tuber melanosporum) plantations. Entomopathogenic nematodes (EPNs) are a promising biological control agent against L. cinnamomeus. EPNs may employ multiple sensory cues while seeking for hosts, such as volatile organic compounds (VOCs) and CO2 gradients. We report for the first time the attraction of EPNs by truffle fruitbodies, and identified some VOCs potentially playing a key role in this interaction. We conducted olfactometer assays to investigate the attraction behavior of Steinernema feltiae and Steinernema carpocapsae towards both T...
February 23, 2024: Journal of Invertebrate Pathology
https://read.qxmd.com/read/38382734/marvel-family-proteins-contribute-to-vegetative-growth-development-and-virulence-of-the-insect-fungal-pathogen-beauveria-bassiana
#16
JOURNAL ARTICLE
Yue-Jin Peng, Hao Zhang, Guang Wang, Ming-Guang Feng, Sheng-Hua Ying
Beauveria bassiana is one of the most extensively studied entomopathogenic fungi (EPF) and is widely used as a biocontrol agent against various insect pests. Proteins containing the MARVEL domain are conserved in eukaryotes, typically with four transmembrane structures. In this study, we identified the five MARVEL domain proteins in B. bassiana. Five MARVEL domain proteins were localized to cytomembrane and vacuoles in B. bassiana, but had different roles in maintaining the lipid-droplet homeostasis. These proteins were required for fungal virulence, but differentially contributed to fungal utilization of nutrients, stress tolerance, and development under aerial and submerged conditions...
February 19, 2024: Journal of Invertebrate Pathology
https://read.qxmd.com/read/38350524/inactivation-of-nosema-spp-with-zinc-phthalacyonine
#17
JOURNAL ARTICLE
Asiye Gök Yurttaş, Kamil Çinar, Zaeema Khan, Tuğba Elgün, Christopher Mayack
Most honey bee pathogens, such as Vairimorpha (Nosema), cannot be rapidly and definitively diagnosed in a natural setting, consequently there is typically the spread of these diseases through shared and re-use of beekeeping equipment. Furthermore, there are no viable treatment options available for Nosema spores to aid in managing the spread of this bee disease. We therefore aimed to develop a new method using novel Zinc Phthalacyonine (ZnPc) as a photosensitizer for the photodynamic inactivation of Nosema spores that could be used for the decontamination of beekeeping equipment...
February 11, 2024: Journal of Invertebrate Pathology
https://read.qxmd.com/read/38350523/the-effect-of-xenorhabdus-bacteria-metabolites-on-colorado-potato-beetle-leptinotarsa-decemlineata-adult-feeding-and-larval-survival
#18
JOURNAL ARTICLE
Vladimír Půža, Jiří Nermuť, Jana Konopická, Oxana Skoková Habuštová
Colorado Potato Beetle (CPB) is one of the most destructive potato pests that can quickly develop resistance to insecticides. Therefore, new safe and effective control strategies that are less susceptible to the development of resistance by CPB are urgently needed. Due to their complex mode of action, the likelihood of resistance development by target pests is generally low with antifeedants. In the present study, we assessed the effect of secondary metabolites of various Xenorhabdus bacteria species and strains on CPB adult feeding and on larval development...
February 11, 2024: Journal of Invertebrate Pathology
https://read.qxmd.com/read/38346575/ecological-determinants-of-prevalence-of-the-male-killing-bacterium-arsenophonus-nasoniae
#19
JOURNAL ARTICLE
Jorge Garrido-Bautista, Ana Cláudia Norte, Gregorio Moreno-Rueda, Pol Nadal-Jiménez
Male-killing bacteria are found in a broad range of arthropods. Arsenophonus nasoniae is a male-killing bacterium, causing a 80% reduction of the male progeny in infected Nasonia vitripennis wasps. Although the discovery of A. nasoniae dates from the early 80's, knowledge about the biology and ecology of this endosymbiont is still scarce. One of these poorly studied features is the ecological factors underlying A. nasoniae incidence on its Nasonia spp. hosts in different geographical locations. Here, we studied the prevalence of A...
February 10, 2024: Journal of Invertebrate Pathology
https://read.qxmd.com/read/38341022/development-of-a-rapid-visual-detection-technology-for-bmnpv-based-on-crispr-cas13a-system
#20
JOURNAL ARTICLE
Xue-Min Zhou, Zhen-Yu Shen, Yi-Xiang Wu, Su Lin, Meng-Dong Wang, Tao Xu, Lu-Lai Wang, Samreen Khan, Xin-Hao Jiao, Ping Wu
Pathogenic microorganism of silkworm are important factors that threaten the high-quality development of sericulture. Among them, Bombyx mori nucleopolyhedrovirus (BmNPV) caused diseases often lead to frequent outbreaks and high mortality, resulting in huge losses to sericultural industry. Current molecular detection methods for BmNPV require expensive equipment and sikilled technical personnel. As a result, the most commonly detection method for silkworm egg production enterprises involves observing the presence of polyhedra under a microscope...
February 8, 2024: Journal of Invertebrate Pathology
journal
journal
21108
1
2
Fetch more papers »
Fetching more papers... Fetching...
Remove bar
Read by QxMD icon Read
×

Save your favorite articles in one place with a free QxMD account.

×

Search Tips

Use Boolean operators: AND/OR

diabetic AND foot
diabetes OR diabetic

Exclude a word using the 'minus' sign

Virchow -triad

Use Parentheses

water AND (cup OR glass)

Add an asterisk (*) at end of a word to include word stems

Neuro* will search for Neurology, Neuroscientist, Neurological, and so on

Use quotes to search for an exact phrase

"primary prevention of cancer"
(heart or cardiac or cardio*) AND arrest -"American Heart Association"

We want to hear from doctors like you!

Take a second to answer a survey question.