keyword
MENU ▼
Read by QxMD icon Read
search

Wolbachia

keyword
https://www.readbyqxmd.com/read/29351633/evolutionary-genetics-of-cytoplasmic-incompatibility-genes-cifa-and-cifb-in-prophage-wo-of-wolbachia
#1
Amelia R I Lindsey, Danny W Rice, Sarah R Bordenstein, Andrew W Brooks, Seth R Bordenstein, Irene L G Newton
The bacterial endosymbiont Wolbachia manipulates arthropod reproduction to facilitate its maternal spread through host populations. The most common manipulation is cytoplasmic incompatibility (CI): Wolbachia-infected males produce modified sperm that cause embryonic mortality, unless rescued by embryos harboring the same Wolbachia. The genes underlying CI, cifA and cifB, were recently identified in the eukaryotic association module of Wolbachia's prophage WO. Here, we use transcriptomic and genomic approaches to address three important evolutionary facets of the cif genes...
January 17, 2018: Genome Biology and Evolution
https://www.readbyqxmd.com/read/29348597/author-correction-short-course-high-dose-rifampicin-achieves-wolbachia-depletion-predictive-of-curative-outcomes-in-preclinical-models-of-lymphatic-filariasis-and-onchocerciasis
#2
Ghaith Aljayyoussi, Hayley E Tyrer, Louise Ford, Hanna Sjoberg, Nicolas Pionnier, David Waterhouse, Jill Davies, Joanne Gamble, Haelly Metuge, Darren A N Cook, Andrew Steven, Raman Sharma, Ana F Guimaraes, Rachel H Clare, Andrew Cassidy, Kelly L Johnston, Laura Myhill, Laura Hayward, Samuel Wanji, Joseph D Turner, Mark J Taylor, Stephen A Ward
A correction to this article has been published and is linked from the HTML version of this paper. The error has been fixed in the paper.
January 18, 2018: Scientific Reports
https://www.readbyqxmd.com/read/29346449/within-host-selection-for-faster-replicating-bacterial-symbionts
#3
Ewa Chrostek, Luis Teixeira
Wolbachia is a widespread, intracellular symbiont of arthropods, able to induce reproductive distortions and antiviral protection in insects. Wolbachia can also be pathogenic, as is the case with wMelPop, a virulent variant of the endosymbiont of Drosophila melanogaster. An extensive genomic amplification of the 20kb region encompassing eight Wolbachia genes, called Octomom, is responsible for wMelPop virulence. The Octomom copy number in wMelPop can be highly variable between individual D. melanogaster flies, even when comparing siblings arising from a single female...
2018: PloS One
https://www.readbyqxmd.com/read/29336504/wolbachia-induced-transcription-factor-gata4-suppresses-ovary-specific-genes-blastoderm-specific-protein-25d-and-imaginal-disc-growth-factor
#4
S Osei-Amo, M Hussein, S Asad, L Hugo, S Asgari
The endosymbiotic bacterium Wolbachia infects a wide array of insect hosts and has been implicated in a range of biological modifications as a consequence of its infection. Previously, it was shown that the transcription factor GATA4 was significantly induced in Wolbachia wMelPop-CLA strain infected Aedes aegypti whole mosquitoes and cells. Here, we provide evidence that this induction also occurs in mosquito ovaries where the ovary-specific genes blastoderm-specific protein 25D (Bsg25D) and imaginal disc growth factor (Disc) are suppressed by Wolbachia...
January 16, 2018: Insect Molecular Biology
https://www.readbyqxmd.com/read/29334340/identification-of-anti-filarial-leads-against-aspartate-semialdehyde-dehydrogenase-of-wolbachia-endosymbiont-of-brugia-malayi-combined-molecular-docking-and-molecular-dynamics-approaches
#5
Dhamodharan Prabhu, Sundaraj Rajamanikandan, Mathimaran Amala, Surekha Kanagarajan, Jeyaraman Jeyakanthan
Lymphatic filariasis is a debilitating vector borne parasitic disease that infects human lymphatic system by nematode Brugia malayi. Currently available anti-filarial drugs are effective only on the larval stages of parasite. So far, no effective drugs are available for humans to treat filarial infections. In this regard, aspartate semialdehyde dehydrogenase (ASDase) in lysine biosynthetic pathway from Wolbachia endosymbiont Brugia malayi represents an attractive therapeutic target for the development of novel anti-filarial agents...
January 15, 2018: Journal of Biomolecular Structure & Dynamics
https://www.readbyqxmd.com/read/29330177/incidence-of-facultative-bacterial-endosymbionts-in-spider-mites-associated-with-local-environment-and-host-plant
#6
Yu-Xi Zhu, Yue-Ling Song, Yan-Kai Zhang, Ary A Hoffmann, Jin-Cheng Zhou, Jing-Tao Sun, Xiao-Yue Hong
Spider mites are frequently associated with multiple endosymbionts whose infection patterns often exhibit spatial and temporal variation. However, the association between endosymbiont prevalence and environmental factors remains unclear. Here, we surveyed endosymbionts in natural populations of the spider mite, Tetranychus truncatus, in China, screening 935 spider mites from 21 localities and 12 host plant species. Three facultative endosymbiont lineages, Wolbachia, Cardinium, and Spiroplasma, were detected at different infection frequencies (52...
January 12, 2018: Applied and Environmental Microbiology
https://www.readbyqxmd.com/read/29311247/diaphorina-citri-nymphs-are-resistant-to-morphological-changes-induced-by-candidatus-liberibacter-asiaticus-in-midgut-epithelial-cells
#7
Marina Mann, Somayeh Fattah-Hosseini, El-Desouky Ammar, Richard Stange, EricaRose Warrick, Kasie Sturgeon, Robert Shatters, Michelle Heck
"Candidatus Liberibacter asiaticus" is the causative bacterium associated with citrus greening disease. "Ca. L. asiaticus" is transmitted by Diaphorina citri more efficiently when it is acquired by nymphs rather than adults. Why this occurs is not known. We compared midguts of D. citri reared on healthy or "Ca. L. asiaticus"-infected citrus trees using quantitative PCR, confocal microscopy, and mitochondrial superoxide staining for evidence of oxidative stress. Consistent with its classification as propagative, "Ca...
January 8, 2018: Infection and Immunity
https://www.readbyqxmd.com/read/29300732/combinations-of-registered-drugs-reduce-treatment-times-required-to-deplete-wolbachia-in-the-litomosoides-sigmodontis-mouse-model
#8
Sabine Specht, Kenneth M Pfarr, Sandra Arriens, Marc P Hübner, Ute Klarmann-Schulz, Marianne Koschel, Sonja Sternberg, Coralie Martin, Louise Ford, Mark J Taylor, Achim Hoerauf
Filarial parasites can be targeted by antibiotic treatment due to their unique endosymbiotic relationship with Wolbachia bacteria. This finding has led to successful treatment strategies in both, human onchocerciasis and lymphatic filariasis. A 4-6 week treatment course using doxycycline results in long-term sterility and safe macrofilaricidal activity in humans. However, current treatment times and doxycycline contraindications in children and pregnant women preclude widespread administration of doxycycline in public health control programs; therefore, the search for shorter anti-wolbachial regimens is a focus of ongoing research...
January 4, 2018: PLoS Neglected Tropical Diseases
https://www.readbyqxmd.com/read/29297702/group-b-wolbachia-strain-dependent-inhibition-of-arboviruses
#9
Michaela J Schultz, John H Connor, Horacio M Frydman
Mosquito-borne viruses, including Zika virus (ZIKV) and dengue virus (DENV), are global threats that continue to infect millions annually. Historically, efforts to combat the spread of these diseases have sought to eradicate the mosquito population. This has had limited success. Recent efforts to combat the spread of these diseases have targeted the mosquito population and the mosquito's ability to transmit viruses by altering the mosquito's microbiome. The introduction of particular strains of Wolbachia bacteria into mosquitos suppresses viral growth and blocks disease transmission...
January 3, 2018: DNA and Cell Biology
https://www.readbyqxmd.com/read/29297293/various-wolbachia-genotypes-differently-influence-host-drosophila-dopamine-metabolism-and-survival-under-heat-stress-conditions
#10
Nataly Е Gruntenko, Yury Yu Ilinsky, Natalya V Adonyeva, Elena V Burdina, Roman A Bykov, Petr N Menshanov, Inga Yu Rauschenbach
BACKGROUND: One of the most widespread prokaryotic symbionts of invertebrates is the intracellular bacteria of Wolbachia genus which can be found in about 50% of insect species. Wolbachia causes both parasitic and mutualistic effects on its host that include manipulating the host reproductive systems in order to increase their transmission through the female germline, and increasing the host fitness. One of the mechanisms, promoting adaptation in biological organisms, is a non-specific neuroendocrine stress reaction...
December 28, 2017: BMC Evolutionary Biology
https://www.readbyqxmd.com/read/29287072/a-highly-stable-blood-meal-alternative-for-rearing-aedes-and-anopheles-mosquitoes
#11
Ted Baughman, Chelsea Peterson, Corrie Ortega, Sarah R Preston, Christopher Paton, Jessica Williams, Amy Guy, Gavin Omodei, Brian Johnson, Helen Williams, Scott L O'Neill, Scott A Ritchie, Stephen L Dobson, Damian Madan
We investigated alternatives to whole blood for blood feeding of mosquitoes with a focus on improved stability and compatibility with mass rearing programs. In contrast to whole blood, an artificial blood diet of ATP-supplemented plasma was effective in maintaining mosquito populations and was compatible with storage for extended periods refrigerated, frozen, and as a lyophilized powder. The plasma ATP diet supported rearing of both Anopheles and Aedes mosquitoes. It was also effective in rearing Wolbachia-infected Aedes mosquitoes, suggesting compatibility with vector control efforts...
December 29, 2017: PLoS Neglected Tropical Diseases
https://www.readbyqxmd.com/read/29286204/genetic-variation-and-potential-co-infection-of-wolbachia-among-widespread-asian-citrus-psyllid-diaphorina-citri-kuwayama-populations
#12
Chia-Ching Chu, Mark Hoffmann, W Evan Braswell, Kirsten S Pelz-Stelinski
Wolbachia can profoundly influence the survival, reproduction, and defenses of insect hosts. These interactions could potentially be harnessed for managing pests or insect-transmitted diseases. Diaphorina citri Kuwayama is a phloem-feeding pest capable of transmitting the putative causal agent of citrus greening, Candidatus Liberibacter asiaticus (CLas). Like many insects, D. citri is also infected with Wolbachia (wDi). Recent studies indicate that the relative abundance of wDi could be associated with the abundance of CLas, and that wDi may contribute to regulating expression of phage lytic cycle genes in CLas, suggesting the need for better understanding of wDi biology in general...
December 29, 2017: Insect Science
https://www.readbyqxmd.com/read/29282144/family-level-variation-in-wolbachia-mediated-dengue-virus-blocking-in-aedes-aegypti
#13
Gerard Terradas, Scott L Allen, Stephen F Chenoweth, Elizabeth A McGraw
BACKGROUND: The mosquito vector Aedes aegypti is responsible for transmitting a range of arboviruses including dengue (DENV) and Zika (ZIKV). The global reach of these viruses is increasing due to an expansion of the mosquito's geographic range and increasing urbanization and human travel. Vector control remains the primary means for limiting these diseases. Wolbachia pipientis is an endosymbiotic bacterium of insects that has the ability to block the replication of pathogens, including flaviviruses such as DENV or ZIKV, inside the body of the vector...
December 28, 2017: Parasites & Vectors
https://www.readbyqxmd.com/read/29279375/field-and-clinically-derived-estimates-of-wolbachia-mediated-blocking-of-dengue-virus-transmission-potential-in-aedes-aegypti-mosquitoes
#14
Lauren B Carrington, Bich Chau Nguyen Tran, Nhat Thanh Hoang Le, Tai Thi Hue Luong, Truong Thanh Nguyen, Phong Thanh Nguyen, Chau Van Vinh Nguyen, Huong Thi Cam Nguyen, Trung Tuan Vu, Long Thi Vo, Dui Thi Le, Nhu Tuyet Vu, Giang Thi Nguyen, Hung Quoc Luu, Anh Duc Dang, Timothy P Hurst, Scott L O'Neill, Vi Thuy Tran, Duong Thi Hue Kien, Nguyet Minh Nguyen, Marcel Wolbers, Bridget Wills, Cameron P Simmons
The wMel strain of Wolbachia can reduce the permissiveness of Aedes aegypti mosquitoes to disseminated arboviral infections. Here, we report that wMel-infected Ae. aegypti (Ho Chi Minh City background), when directly blood-fed on 141 viremic dengue patients, have lower dengue virus (DENV) transmission potential and have a longer extrinsic incubation period than their wild-type counterparts. The wMel-infected mosquitoes that are field-reared have even greater relative resistance to DENV infection when fed on patient-derived viremic blood meals...
December 26, 2017: Proceedings of the National Academy of Sciences of the United States of America
https://www.readbyqxmd.com/read/29274498/species-delimitation-within-the-bothryorrhynchapion-weevils-multiple-evidence-from-genetics-morphology-and-ecological-associations
#15
Łukasz Kajtoch, Matteo Montagna, Marek Wanat
Curculionidae is a hyperdiverse group of beetles, whose taxonomy and phylogenetics is still poorly understood, especially at the genus level. The latest work on the evolution of Apionini showed a noticeable "mess" in the subtribe Oxystomatina, where most of the morphology-based genera were found to be polyphyletic or paraphyletic. These discrepancies between classical taxonomy and molecular phylogenetics implied the need for further taxonomic revision of these groups. Here, we used sets of morphological, molecular and ecological characters to verify the taxonomic statuses and disentangle the phylogenetic relations among the Bothryorrhynchapion apionids, which are classified as a subgenus of Cyanapion...
December 20, 2017: Molecular Phylogenetics and Evolution
https://www.readbyqxmd.com/read/29250466/arsenophonus-and-sodalis-replacements-shape-evolution-of-symbiosis-in-louse-flies
#16
Eva Šochová, Filip Husník, Eva Nováková, Ali Halajian, Václav Hypša
Symbiotic interactions between insects and bacteria are ubiquitous and form a continuum from loose facultative symbiosis to greatly intimate and stable obligate symbiosis. In blood-sucking insects living exclusively on vertebrate blood, obligate endosymbionts are essential for hosts and hypothesized to supplement B-vitamins and cofactors missing from their blood diet. The role and distribution of facultative endosymbionts and their evolutionary significance as seeds of obligate symbioses are much less understood...
2017: PeerJ
https://www.readbyqxmd.com/read/29248525/assessing-the-efficiency-of-wolbachia-driven-aedes-mosquito-suppression-by-delay-differential-equations
#17
Mugen Huang, Jiaowan Luo, Linchao Hu, Bo Zheng, Jianshe Yu
To suppress wild population of Aedes mosquitoes, the primary transmission vector of life-threatening diseases such as dengue, malaria, and Zika, an innovative strategy is to release male mosquitoes carrying the bacterium Wolbachia into natural areas to drive female sterility by cytoplasmic incompatibility. We develop a model of delay differential equations, incorporating the strong density restriction in the larval stage, to assess the delicate impact of life table parameters on suppression efficiency. Through mathematical analysis, we find the sufficient and necessary condition for global stability of the complete suppression state...
December 14, 2017: Journal of Theoretical Biology
https://www.readbyqxmd.com/read/29234308/horizontal-transmission-of-intracellular-insect-symbionts-via-plants
#18
REVIEW
Ewa Chrostek, Kirsten Pelz-Stelinski, Gregory D D Hurst, Grant L Hughes
Experimental evidence is accumulating that endosymbionts of phytophagous insects may transmit horizontally via plants. Intracellular symbionts known for manipulating insect reproduction and altering fitness (Rickettsia, Cardinium, Wolbachia, and bacterial parasite of the leafhopper Euscelidius variegatus) have been found to travel from infected insects into plants. Other insects, either of the same or different species can acquire the symbiont from the plant through feeding, and in some cases transfer it to their progeny...
2017: Frontiers in Microbiology
https://www.readbyqxmd.com/read/29234159/evolution-of-reproductive-parasites-with-direct-fitness-benefits
#19
Roman Zug, Peter Hammerstein
Maternally inherited symbionts such as Wolbachia have long been seen mainly as reproductive parasites, with deleterious effects on host fitness. It is becoming clear, however, that, frequently, these symbionts also have beneficial effects on host fitness, either along with reproductive parasitism or not. Using the examples of cytoplasmic incompatibility (CI) and male-killing (MK), we here analyze the effect of direct fitness benefits on the evolution of reproductive parasites. By means of a simple theoretical framework, we synthesize and extend earlier modeling approaches for CI and MK, which usually ignore fitness benefits...
December 13, 2017: Heredity
https://www.readbyqxmd.com/read/29216317/novel-wolbachia-transinfected-aedes-aegypti-mosquitoes-possess-diverse-fitness-and-vector-competence-phenotypes
#20
Johanna E Fraser, Jyotika Taneja De Bruyne, Iñaki Iturbe-Ormaetxe, Justin Stepnell, Rhiannon L Burns, Heather A Flores, Scott L O'Neill
Wolbachia pipientis from Drosophila melanogaster (wMel) is an endosymbiotic bacterium that restricts transmission of human pathogenic flaviviruses and alphaviruses, including dengue, Zika, and chikungunya viruses, when introduced into the mosquito vector Aedes aegypti. To date, wMel-infected Ae. aegypti have been released in field trials in 5 countries to evaluate the effectiveness of this strategy for disease control. Despite the success in establishing wMel-infected mosquitoes in wild populations, and the well-characterized antiviral capabilities of wMel, transinfecting different or additional Wolbachia strains into Ae...
December 7, 2017: PLoS Pathogens
keyword
keyword
102343
1
2
Fetch more papers »
Fetching more papers... Fetching...
Read by QxMD. Sign in or create an account to discover new knowledge that matter to you.
Remove bar
Read by QxMD icon Read
×

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"