keyword
MENU ▼
Read by QxMD icon Read
search

parasitoids

keyword
https://www.readbyqxmd.com/read/28104679/genome-sequencing-of-the-behaviour-manipulating-virus-lbfv-reveals-a-possible-new-virus-family
#1
D Lepetit, B Gillet, S Hughes, K Kraaijeveld, J Varaldi
Parasites are sometimes able to manipulate the behaviour of their hosts. However, the molecular cues underlying this phenomenon are poorly documented. We previously reported that the parasitoid wasp Leptopilina boulardi which develops from Drosophila larvae is often infected by an inherited DNA virus. In addition to being maternally transmitted, the virus benefits from horizontal transmission in superparasitized larvae (Drosophila that have been parasitized several times). Interestingly, the virus forces infected females to lay eggs in already parasitized larvae, thus increasing the chance of being horizontally transmitted...
January 19, 2017: Genome Biology and Evolution
https://www.readbyqxmd.com/read/28099571/first-report-of-the-parasitoid-pachycrepoideus-vindemmiae-rondani-1875-hymenoptera-pteromalidae-parasitizing-synthesiomyia-nudiseta-van-der-wulp-1883-diptera-muscidae
#2
C H Marchiori, L M F Borges
No abstract text is available yet for this article.
January 12, 2017: Brazilian Journal of Biology, Revista Brasleira de Biologia
https://www.readbyqxmd.com/read/28098183/seasonal-and-regional-presence-of-hymenopteran-parasitoids-of-drosophila-in-switzerland-and-their-ability-to-parasitize-the-invasive-drosophila-suzukii
#3
Valery Knoll, Thomas Ellenbroek, Jörg Romeis, Jana Collatz
Since its introduction into Europe the invasive Drosophila suzukii has established and spread widely, thereby entering habitats populated by native Drosophila species and their natural enemies. The highly prolific D. suzukii will likely interact with these species as a competitor, host or prey. To investigate potential interactions of D. suzukii with parasitoids, a field survey was conducted across several fruit-growing regions in Switzerland in two consecutive years. Eight species of hymenopteran parasitoids were collected using D...
January 18, 2017: Scientific Reports
https://www.readbyqxmd.com/read/28094452/the-dipteran-parasitoid-exorista-bombycis-induces-pro-and-anti-oxidative-reactions-in-the-silkworm-bombyx-mori-enzymatic-and-genetic-analysis
#4
Pooja Makwana, Appukuttan Nair R Pradeep, Shambhavi P Hungund, Kangayam M Ponnuvel, Kanika Trivedy
Hymenopteran parasitoids inject various factors including polydnaviruses along with their eggs into their host insects that suppress host immunity reactions to the eggs and larvae. Less is known about the mechanisms evolved in dipteran parasitoids that suppress host immunity. Here we report that the dipteran, Exorista bombycis, parasitization leads to pro-oxidative reactions and activation of anti-oxidative enzymes in the silkworm Bombyx mori larva. We recorded increased activity of oxidase, superoxide dismutase, thioredoxin peroxidase, catalase, glutathione-S-transferase (GST), and peroxidases in the hemolymph plasma, hemocytes, and fat body collected from B...
January 17, 2017: Archives of Insect Biochemistry and Physiology
https://www.readbyqxmd.com/read/28092806/life-cycle-ultrastructure-and-phylogeny-of-parvilucifera-corolla-sp-nov-alveolata-perkinsozoa-a-parasitoid-of-dinoflagellates
#5
Albert Reñé, Elisabet Alacid, Rosa Isabel Figueroa, Francisco Rodríguez, Esther Garcés
Recent studies of marine protists have revealed parasites to be key components of marine communities. Here we describe a new species of the parasitoid genus Parvilucifera that was observed infecting the dinoflagellate Durinskia baltica in salt marshes of the Catalan coast (NW Mediterranean). In parallel, the same species was detected after the incubation of seawater from the Canary Islands (Lanzarote, NE Atlantic). The successful isolation of strains from both localities allowed description of the life cycle, ultrastructure, and phylogeny of the species...
December 13, 2016: European Journal of Protistology
https://www.readbyqxmd.com/read/28076373/larvae-and-nests-of-aculeate-hymenoptera-hymenoptera-aculeata-nesting-in-reed-galls-induced-by-lipara-spp-diptera-chloropidae-with-a-review-of-species-recorded-part-ii
#6
Alena Astapenková, Petr Heneberg, Petr Bogusch
The ability of aculeate Hymenoptera to utilize wetlands is poorly understood, and descriptions of their nests and developmental stages are largely absent. Here we present results based on our survey of hymenopterans using galls induced by Lipara spp. flies on common reed Phragmites australis in the years 2015-2016. We studied 20,704 galls, of which 9,446 were longitudinally cut and the brood from them reared in the laboratory, while the remaining 11,258 galls reared in rearing bags also in laboratory conditions...
2017: PloS One
https://www.readbyqxmd.com/read/28074919/development-of-microsatellite-markers-and-estimation-of-inbreeding-frequency-in-the-parasitoid-wasp-melittobia
#7
Jun Abe, Bart A Pannebakker
The parasitoid wasp Melittobia is an important insect for basic and applied biology. Specifically, their extremely female-biased sex ratios, which contrast to the prediction of pre-existing theories, are needed to be explained from the aspect of evolutionary biology. In this study, using next-generation sequencing, 20 microsatellite loci were developed and characterized for M. australica. The developed loci were used to analyze two populations, one from a mainland Japan and one from the Okinawa island region...
January 11, 2017: Scientific Reports
https://www.readbyqxmd.com/read/28073975/modeling-environmental-influences-in-the-psyllaephagus-bliteus-hymenoptera-encyrtidae-glycaspis-brimblecombei-hemiptera-aphalaridae-parasitoid-host-system
#8
M Margiotta, S Bella, F Buffa, V Caleca, I Floris, V Giorno, G Lo Verde, C Rapisarda, R Sasso, P Suma, F Tortorici, S Laudonia
Glycaspis brimblecombei Moore (Hemiptera: Aphalaridae) is an invasive psyllid introduced into the Mediterranean area, where it affects several species of Eucalyptus Psyllaephagus bliteus Riek (Hymenoptera: Encyrtidae) is a specialized parasitoid of this psyllid that was accidentally introduced into Italy in 2011. We developed a model of this host-parasitoid system that accounts for the influence of environmental conditions on the G. brimblecombei population dynamics and P. bliteus parasitism rates in the natural ecosystem...
January 10, 2017: Journal of Economic Entomology
https://www.readbyqxmd.com/read/28070291/an-exotic-parasitoid-provides-an-invasional-lifeline-for-native-parasitoids
#9
Joanna K Konopka, Tim Haye, Tara Gariepy, Peter Mason, David Gillespie, Jeremy N McNeil
The introduction of an exotic species may alter food webs within the ecosystem and significantly affect the biodiversity of indigenous species at different trophic levels. It has been postulated that recent introduction of the brown marmorated stinkbug (Halyomorpha halys (Stål)) represents an evolutionary trap for native parasitoids, as they accept H. halys egg masses as a host but produce no viable progeny. Interspecific interactions between European egg parasitoid, Trissolcus cultratus (Mayr), and an Asian parasitoid, Trissolcus japonicus (Ashmead), were assessed by providing egg masses to T...
January 2017: Ecology and Evolution
https://www.readbyqxmd.com/read/28069731/an-old-remedy-for-a-new-problem-identification-of-ooencyrtus-kuvanae-hymenoptera-encyrtidae-an-egg-parasitoid-of-lycorma-delicatula-hemiptera-fulgoridae-in-north-america
#10
Houping Liu, Jason Mottern
Spotted Lanternfly, Lycorma delicatula (White) is a recently introduced pest of Tree-of-Heaven, Ailanthus altissima (Mill.) Swingle in North America. Natural enemy surveys for this pest in Pennsylvania in 2016 recovered an encyrtid egg parasitoid from both field collections and laboratory rearing of field-collected L. delicatula egg masses. Both molecular and morphological data confirm that the egg parasitoids are Ooencyrtus kuvanae (Howard) (Hymenoptera: Encyrtidae). Ooencyrtus kuvanae (Howard) is primarily an egg parasitoid of gypsy moth, Lymantria dispar (L...
January 9, 2017: Journal of Insect Science
https://www.readbyqxmd.com/read/28066711/metagenomic-analysis-of-microbial-community-of-a-parasitoid-wasp-megaphragma-amalphitanum
#11
A V Nedoluzhko, F S Sharko, S V Tsygankova, E S Boulygina, A S Sokolov, S M Rastorguev, V V Kadnikov, A V Mardanov, N V Ravin, A M Mazur, A A Polilov, N M Gruzdeva, E B Prokhortchouk, K G Skryabin
The vast majority of multicellular organisms coexist with bacterial symbionts that may play various roles during their life cycle. Parasitoid wasp Megaphragma amalphitanum (Hymenoptera: Trichogrammatidae) belongs to the smallest known insects whose size is comparable with some bacteria. Using 16S rRNA gene sequencing and Whole Genome Sequencing (WGS), we described microbiota diversity for this arthropod and its potential impact on their lifecycle. Metagenomic sequences were deposited to SRA database which is available at NCBI with accession number SRX2363723 and SRX2363724...
March 2017: Genomics Data
https://www.readbyqxmd.com/read/28063085/can-toxicants-used-against-cotton-mealybug-phenacoccus-solenopsis-be-compatible-with-an-encyrtid-parasitoid-aenasius-bambawalei-under-laboratory-conditions
#12
Hayat Badshah, Farman Ullah, Paul Andre Calatayud, Hidayat Ullah, Bashir Ahmad
The cotton mealybug, Phenacoccus solenopsis Tinsley (Sternorrhyncha: Pseudococcidae) is a serious pest of various cultivated plants in Pakistan. Recent reports show that the parasitoid Aenasius bambawalei Hayat (Hymenoptera: Encyrtidae) is a good biocontrol agent of the pest. Compatibleness is important in any IPM programme, and the insecticide used must have little or no effects on the biological control agent. This study investigated the compatibility of neem treatments and a commercial insecticide, imidacloprid on A...
January 6, 2017: Environmental Science and Pollution Research International
https://www.readbyqxmd.com/read/28062793/self-and-conspecific-discrimination-between-unparasitized-and-parasitized-green-peach-aphid-hemiptera-aphididae-by-aphelinus-asychis-hymenoptera-aphelinidae
#13
Qifu Liang, Yujie Jia, Tongxian Liu
Aphelinus asychis Walker (Hymenoptera: Aphelinidae) is a solitary koinobiont endoparasitoid, which parasitizes the green peach aphid, Myzus persicae (Sulzer) (Hemiptera: Aphididae). Host discrimination is the ability of a parasitoid to distinguish between unparasitized and parasitized hosts, so parasitoids can avoid wasting eggs and time. We determined the influence of host density (5, 10, 15, 20, and 25 aphids per experienced parasitoid during a 24-h period) on egg distribution, and tested the effects of different time intervals (0, 24, 48, and 72 h) between successive ovipositions on host discrimination between unparasitized and self- or conspecific-parasitized aphids...
January 6, 2017: Journal of Economic Entomology
https://www.readbyqxmd.com/read/28054305/mexican-fruit-fly-populations-in-the-semi-arid-highlands-of-the-sierra-madre-oriental-in-northeastern-mexico
#14
V Vanoye-Eligio, A Mora-Olivo, G Gaona-García, F Reyes-Zepeda, M Rocandio-Rodríguez
The Mexican fruit fly, Anastrepha ludens Loew (Diptera: Tephritidae), is one of the most important pests of citrus in Mexico. We report the results of an analysis of A. ludens populations that inhabit the semi-arid highlands of the Sierra Madre Oriental in northeastern Mexico. This study aimed to provide information on population fluctuation of A. ludens and how it relates to climate variables, as well as insights into habitat and native parasitoids. Population peaked in the period July-November when ripe fruits of the wild host, Casimiroa pubescens Ramírez, were available...
January 4, 2017: Neotropical Entomology
https://www.readbyqxmd.com/read/28041943/high-temperature-induces-downregulation-of-polydnavirus-gene-transcription-in-lepidopteran-host-and-enhances-accumulation-of-host-immunity-gene-transcripts
#15
M Lukas Seehausen, Michel Cusson, Jacques Régnière, Maxence Bory, Don Stewart, Abdelmadjid Djoumad, Sandy M Smith, Véronique Martel
Endoparasitoids face the challenge of overcoming the immune reaction of their hosts, which typically consists of encapsulation and melanisation of parasitoid eggs or larvae. Some endoparasitic wasps such as the solitary Tranosema rostrale (Hymenoptera: Ichneumonidae) that lay their eggs in larvae of the spruce budworm, Choristoneura fumiferana (Lepidoptera: Tortricidae), have evolved a symbiotic relationship with a polydnavirus (PDV), which in turn helps them suppress the host's immune response. We observed an increase in mortality of immature T...
December 29, 2016: Journal of Insect Physiology
https://www.readbyqxmd.com/read/28040876/host-coexistence-in-a-model-for-two-host-one-parasitoid-interactions
#16
Valentina Clamer, Andrea Pugliese, Davide Liessi, Dimitri Breda
Building from a continuous-time host-parasitoid model introduced by Murdoch et al. (Am Nat 129:263-282, 1987), we study the dynamics of a 2 host-parasitoid model assuming, for the sake of simplicity, that larval stages have a fixed duration. If each host is subjected to density-dependent mortality in its larval stage, we obtain explicit conditions for the existence of an equilibrium where the two host species coexist with the parasitoid. However, if host demography is density-independent, equilibrium coexistence is impossible...
December 31, 2016: Journal of Mathematical Biology
https://www.readbyqxmd.com/read/28040222/elicitation-of-superparasitization-behavior-from-the-parasitoid-wasp-leptopilina-boulardi-by-the-organophosphorus-insecticide-chlorpyrifos
#17
Jean-Marie Delpuech
Chlorpyrifos is an organophosphorus insecticide that largely contributes to environmental pollution. Parasitoids, as any other non-target species, can be exposed to insecticides through environmental pollution. Parasitoids are key species because they regulate natural populations of other insects. The hymenopterous parasitoid Leptopilina boulardi, whose larvae develop inside Drosophila larvae, is a solitary parasitoid; thus, only one larva can successfully develop per host. Therefore, females generally lay only one egg per host because any increase in the number of eggs laid will decrease its fitness...
December 28, 2016: Science of the Total Environment
https://www.readbyqxmd.com/read/28035894/sweet-tetra-trophic-interactions-multiple-evolution-of-nectar-secretion-a-defensive-extended-phenotype-in-cynipid-gall-wasps
#18
James A Nicholls, George Melika, Graham N Stone
Many herbivores employ reward-based mutualisms with ants to gain protection from natural enemies. We examine the evolutionary dynamics of a tetra-trophic interaction in which gall wasp herbivores induce their host oaks to produce nectar-secreting galls, which attract ants that provide protection from parasitoids. We show that, consistent with other gall defensive traits, nectar secretion has evolved repeatedly across the oak gall wasp tribe and also within a single genus (Disholcaspis) that includes many nectar-inducing species...
January 2017: American Naturalist
https://www.readbyqxmd.com/read/28031813/host-plant-associated-genetic-divergence-of-two-diatraea-spp-lepidoptera-crambidae-stemborers-on-novel-crop-plants
#19
Andrea L Joyce, Miguel Sermeno Chicas, Leopoldo Serrano Cervantes, Miguel Paniagua, Sonja J Scheffer, M Alma Solis
Diatraea lineolata and Diatraea saccharalis (Lepidoptera: Crambidae) are moths with stemboring larvae that feed and develop on economically important grasses. This study investigated whether these moths have diverged from a native host plant, corn, onto introduced crop plants including sorghum, sugarcane, and rice. Diatraea larvae were collected from these four host plants throughout the year in El Salvador and were reared on artificial diet until moths or parasitoids emerged. Adult moths were subsequently identified to species...
December 2016: Ecology and Evolution
https://www.readbyqxmd.com/read/28028170/influences-of-temperature-and-ootheca-age-on-the-life-history-of-the-cockroach-ootheca-parasitoid-aprostocetus-hagenowii-hymenoptera-eulophidae
#20
Hui-Siang Tee, Chow-Yang Lee
The influences of ootheca age and temperature on the life history of Aprostocetus hagenowii (Ratzeburg) (Hymenoptera: Eulophidae), a gregarious ootheca parasitoid of the American cockroach Periplaneta americana (L.) (Dictyoptera: Blattidae), were evaluated. Oothecae were incubated at 20, 25, and 30 °C to produce oothecae aged 1-60, 1-40, and 1-30 d old, respectively. Fitness traits (development time, percentage emergence, number of progeny, percentage female progeny, and female body size) of A. hagenowii developing in these different-aged oothecae were determined...
December 27, 2016: Journal of Economic Entomology
keyword
keyword
63495
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"