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https://www.readbyqxmd.com/read/28510732/efficacy-of-bistrifluron-termite-bait-on-coptotermes-lacteus-isoptera-rhinotermitidae-in-southern-australia
#1
Garry A Webb
Bistrifluron, a benzoylphenyl urea compound, was evaluated for efficacy against Coptotermes lacteus (Froggatt), a mound-building species in southern Australia. Bistrifluron bait (tradename Xterm) was delivered as containerized pellets inserted into plastic in-ground feeding stations implanted in the sides of mounds. Termites actively tunneled in the gaps between pellets and removed bait from the canisters. Two separate trials were conducted, one commencing on 22 September 2011 and the second commencing on 30 November 2011...
May 16, 2017: Journal of Economic Entomology
https://www.readbyqxmd.com/read/28508537/superorganismality-and-caste-differentiation-as-points-of-no-return-how-the-major-evolutionary-transitions-were-lost-in-translation
#2
Jacobus J Boomsma, Richard Gawne
More than a century ago, William Morton Wheeler proposed that social insect colonies can be regarded as superorganisms when they have morphologically differentiated reproductive and nursing castes that are analogous to the metazoan germ-line and soma. Following the rise of sociobiology in the 1970s, Wheeler's insights were largely neglected, and we were left with multiple new superorganism concepts that are mutually inconsistent and uninformative on how superorganismality originated. These difficulties can be traced to the broadened sociobiological concept of eusociality, which denies that physical queen-worker caste differentiation is a universal hallmark of superorganismal colonies...
May 15, 2017: Biological Reviews of the Cambridge Philosophical Society
https://www.readbyqxmd.com/read/28488735/termite-an-r-script-for-fast-reduction-of-la-icpms-data-and-its-application-to-trace-element-measurements
#3
Simon A Mischel, Regina Mertz-Kraus, Klaus Peter Jochum, Denis Scholz
RATIONALE: High spatial resolution Laser Ablation Inductively Coupled Plasma Mass Spectrometry (LA-ICPMS) determination of trace element concentrations is of great interest for geological and environmental studies. Data reduction is a very important aspect of LA-ICP-MS, and several commercial programs for handling LA-ICPMS trace element data are available. Each of these software packages has its specific advantages and disadvantages. METHODS: Here we present TERMITE, an R script for the reduction of LA-ICPMS data, which can reduce both spot and line scan measurements...
May 10, 2017: Rapid Communications in Mass Spectrometry: RCM
https://www.readbyqxmd.com/read/28487083/hcv-clearance-after-direct-acting-antivirals-in-patients-with-cirrhosis-by-stages-of-liver-impairment-the-ital-c-network-study
#4
Antonio Massimo Ippolito, Michele Milella, Vincenzo Messina, Fabio Conti, Raffaele Cozzolongo, Filomena Morisco, Giuseppina Brancaccio, Michele Barone, Teresa Santantonio, Chiara Masetti, Paolo Tundo, Antonina Smedile, Vito Carretta, Pietro Gatti, Antonio Patrizio Termite, Maria Rosa Valvano, Giuseppe Bruno, Claudia Fabrizio, Pietro Andreone, Marianna Zappimbulso, Giovanni Battista Gaeta, Nicola Napoli, Luca Fontanella, Gianfranco Lauletta, Giuseppe Cuccorese, Antonio Metrangolo, Ruggiero Francavilla, Emanuela Ciracì, Salvatore Rizzo, Angelo Andriulli
BACKGROUND: Sustained virological response (SVR12) rates at 12 weeks after treatment for HCV-infected patients with decompensated cirrhosis are used when referring to those with moderate functional impairment, while few data are available for those with more severe impairment. The use of the cirrhosis staging system proposed by D'Amico might provide new insights on timing for antiviral therapy. METHODS: We investigated efficacy (SVR12), safety, and post-treatment variations in clinical and laboratory parameters in 2612 patients with advanced fibrosis (n=575) or cirrhosis (n=2037)...
April 8, 2017: Digestive and Liver Disease
https://www.readbyqxmd.com/read/28485048/cyclohexylamine-inexplicably-induces-antennae-loss-in-formosan-subterranean-termites-coptotermes-formosanus-shiraki-cyclohexylamine-hydrogen-phosphate-salts-are-novel-termiticides
#5
Brantley Grimball, Lucas Veillon, Tara Calhoun, Frank R Fronczek, Emily Arceneaux, Roger A Laine
BACKGROUND: In experiments with Formosan Subterranean Termites (Coptotermes formosanus Shirakii), myo-inositol-2-monophosphate as the di-cyclohexylammonium salt was tested among other sugar derivatives, and was found to be toxic to C. formosanus when added to a moistened filter paper food source in plastic petri dishes. RESULTS: Curiously, over a 9 day period, the moniliform (beaded) antennae of C. formosanus deteriorated in a stepwise fashion with the most distal pseudosegment (bead) turning brown and falling off, followed by the penultimate pseudosegment, sequentially until 7-9 days when only a stub of the antennae remained...
May 9, 2017: Pest Management Science
https://www.readbyqxmd.com/read/28466145/the-role-of-resource-density-on-energy-allocation-in-the-neotropical-termite-nasutitermes-aff-coxipoensis-termitidae-nasutitermitinae
#6
P F Cristaldo, C S Almeida, N G Cruz, E J M Ribeiro, M L C Rocha, A A Santos, A S Santana, A P A Araújo
Organisms acquire energy from environment and must allocate it among different life traits (growth, maintenance and reproduction). Social insects must manage the energy allocation to various levels such as colony growth and caste functions. Here, we addressed the question of whether resource density affects the energy allocation to the number of individuals and caste functions as well as nest's growth rate in the Neotropical termite Nasutitermes aff. coxipoensis (Homgren) (Termitidae: Nasutitermitinae). In a manipulative field experiment, colonies of N...
May 2, 2017: Neotropical Entomology
https://www.readbyqxmd.com/read/28464973/evaluation-of-fipronil-and-imidacloprid-as-bait-active-ingredients-against-fungus-growing-termites-blattodea-termitidae-macrotermitinae
#7
N Iqbal, T A Evans
Fungus-growing termites (Macrotermitinae) are important pests in tropical countries. They are difficult to control with existing baiting methods, as chitin synthesis inhibitors are not effectual as active ingredients. We tested two neurotoxins, fipronil and imidacloprid, as potential bait active ingredients against Macrotermes gilvus (Hagen) in Singapore. In laboratory bioassays, M. gilvus showed no preference for doses of 0-64 ppm fipronil, or for doses of 0-250 ppm imidacloprid, indicating no repellence. We tested each insecticide in toilet paper as a bait matrix in a field experiment...
May 3, 2017: Bulletin of Entomological Research
https://www.readbyqxmd.com/read/28463423/isolation-biosynthesis-and-chemical-modifications-of-rubterolones-a-f-rare-tropolone-alkaloids-from-actinomadura-sp-5-2
#8
Huijuan Guo, René Benndorf, Daniel Leichnitz, Jonathan L Klassen, John Vollmers, Helmar Görls, Matthias Steinacker, Christiane Weigel, Hans-Martin Dahse, Anne-Kristin Kaster, Z Wilhelm de Beer, Michael Poulsen, Christine Beemelmanns
We report the discovery of six new highly substituted tropolone alkaloids, rubterolones A-F, from Actinomadura sp. 5 2, isolated from the gut of the fungus-growing termite Macrotermes natalensis. Rubterolones were identified using fungus-bacteria challenge assays and a HRMS-based dereplication strategy, and characterized by NMR and HRMS analyses and X-ray crystallography. Feeding experiments and subsequent chemical derivatisation led to a first library of rubterolones derivatives (A-L). Genome sequencing and comparative analyses revealed their putative biosynthetic pathway, which was supported by feeding experiments...
May 2, 2017: Chemistry: a European Journal
https://www.readbyqxmd.com/read/28446695/breaking-the-cipher-ant-eavesdropping-on-the-variational-trail-pheromone-of-its-termite-prey
#9
Xiao-Lan Wen, Ping Wen, Cecilia A L Dahlsjö, David Sillam-Dussès, Jan Šobotník
Predators may eavesdrop on their prey using innate signals of varying nature. In regards to social prey, most of the prey signals are derived from social communication and may therefore be highly complex. The most efficient predators select signals that provide the highest benefits. Here, we showed the use of eusocial prey signals by the termite-raiding ant Odontoponera transversaO. transversa selected the trail pheromone of termites as kairomone in several species of fungus-growing termites (Termitidae: Macrotermitinae: Odontotermes yunnanensis, Macrotermes yunnanensis, Ancistrotermes dimorphus)...
April 26, 2017: Proceedings. Biological Sciences
https://www.readbyqxmd.com/read/28439543/saving-the-injured-rescue-behavior-in-the-termite-hunting-ant-megaponera-analis
#10
Erik Thomas Frank, Thomas Schmitt, Thomas Hovestadt, Oliver Mitesser, Jonas Stiegler, Karl Eduard Linsenmair
Predators of highly defensive prey likely develop cost-reducing adaptations. The ant Megaponera analis is a specialized termite predator, solely raiding termites of the subfamily Macrotermitinae (in this study, mostly colonies of Pseudocanthotermes sp.) at their foraging sites. The evolutionary arms race between termites and ants led to various defensive mechanisms in termites (for example, a caste specialized in fighting predators). Because M. analis incurs high injury/mortality risks when preying on termites, some risk-mitigating adaptations seem likely to have evolved...
April 2017: Science Advances
https://www.readbyqxmd.com/read/28428832/a-meta-analysis-testing-eusocial-co-option-theories-in-termite-gut-physiology-and-symbiosis
#11
Michael E Scharf, Yunpeng Cai, Yijun Sun, Ruchira Sen, Rhitoban Raychoudhury, Drion G Boucias
The termite gut accomplishes key physiologic functions that underlie termite symbiosis and sociality. However, potential candidate functions of the host-symbiont holobiome have not yet been explored across seemingly divergent processes such as digestion, immunity, caste differentiation, and xenobiotic tolerance. This study took a meta-analysis approach for concurrently studying host and symbiont gut metatranscriptome responses of the lower termite Reticulitermes flavipes, which has ancestral characteristics and hosts a diverse mix of eukaryotic and bacterial symbionts...
2017: Communicative & Integrative Biology
https://www.readbyqxmd.com/read/28424249/lignocellulose-pretreatment-in-a-fungus-cultivating-termite
#12
Hongjie Li, Daniel J Yelle, Chang Li, Mengyi Yang, Jing Ke, Ruijuan Zhang, Yu Liu, Na Zhu, Shiyou Liang, Xiaochang Mo, John Ralph, Cameron R Currie, Jianchu Mo
Depolymerizing lignin, the complex phenolic polymer fortifying plant cell walls, is an essential but challenging starting point for the lignocellulosics industries. The variety of ether- and carbon-carbon interunit linkages produced via radical coupling during lignification limit chemical and biological depolymerization efficiency. In an ancient fungus-cultivating termite system, we reveal unprecedentedly rapid lignin depolymerization and degradation by combining laboratory feeding experiments, lignocellulosic compositional measurements, electron microscopy, 2D-NMR, and thermochemolysis...
May 2, 2017: Proceedings of the National Academy of Sciences of the United States of America
https://www.readbyqxmd.com/read/28416113/early-evolution-of-specialized-termitophily-in-cretaceous-rove-beetles
#13
Chenyang Cai, Diying Huang, Alfred F Newton, K Taro Eldredge, Michael S Engel
Termitophiles, symbionts that live in termite nests, include a wide range of morphologically and behaviorally specialized organisms. Complex adaptive mechanisms permit these animals to integrate into societies and to exploit their controlled physical conditions and plentiful resources, as well as to garner protection inside termite nests. An understanding of the early evolution of termitophily is challenging owing to a scarcity of fossil termitophiles, with all known reliable records occurring from the Miocene (approximately 19 million years ago [mya]) [1-6], and an equivocal termitophile belonging to the largely free-living Mesoporini from the mid-Cretaceous [7]...
April 24, 2017: Current Biology: CB
https://www.readbyqxmd.com/read/28410430/caste-sex-and-age-dependent-expression-of-immune-related-genes-in-a-japanese-subterranean-termite-reticulitermes-speratus
#14
Yuki Mitaka, Kazuya Kobayashi, Kenji Matsuura
Insects protect themselves from microbial infections through innate immune responses, including pathogen recognition, phagocytosis, the activation of proteolytic cascades, and the synthesis of antimicrobial peptides. Termites, eusocial insects inhabiting microbe-rich wood, live in closely-related family groups that are susceptible to shared pathogen infections. To resist pathogenic infection, termite families have evolved diverse immune adaptations at both individual and societal levels, and a strategy of trade-offs between reproduction and immunity has been suggested...
2017: PloS One
https://www.readbyqxmd.com/read/28403375/helminth-fauna-of-leptodactylus-syphax-anura-leptodactylidae-from-caatinga-biome-northeastern-brazil
#15
Aline Gouveia de Souza Lins, Aline Aguiar, Drausio Honorio Morais, Lidiane Aparecida Firmino da Silva, Robson Waldemar Ávila, Reinaldo José da Silva
Leptodactylus syphax is distributed in central, southeastern and northeastern Brazil, eastern Bolivia and southern Paraguay, occupying open areas and rock outcrops, in rock cavities and termite burrows. We collected 21 frogs from the Caatinga region of the state of Ceará, northeastern Brazil, and 7,021 helminths were recovered from 18 of these hosts (overall prevalence = 85.7%). Six helminth taxa were recovered, as follows: Aplectana membranosa (n = 3,756); Schrankiana formosula (n = 3,176); larvae of Physaloptera sp...
January 2017: Revista Brasileira de Parasitologia Veterinária, Brazilian Journal of Veterinary Parasitology
https://www.readbyqxmd.com/read/28386530/draft-genome-sequence-of-bacillus-oleronius-dsm-9356-isolated-from-the-termite-reticulitermes-santonensis
#16
Rodney Owusu-Darko, Mushal Allam, Senzo Mtshali, Arshad Ismail, Elna Maria Buys
Bacillus oleronius strain DSM 9356 isolated from the termite Reticulitermes santonensis was sequenced to gain insights in relation to its closest phylogenetic neighbor Bacillus sporothermodurans. The draft genome of strain DSM 9356 contains 5,083,966 bp with an estimated G + C content of 35%, 4899 protein-coding genes, 116 tRNAs and 18 rRNAs. The RAST annotation assigned these genes into 462 subsystems, with the maximum number of genes associated with amino acids and derivatives metabolism (14.84%), followed by carbohydrates (13...
June 2017: Genomics Data
https://www.readbyqxmd.com/read/28358684/grass-a-gradient-based-random-sampling-scheme-for-milano-retinex
#17
Michela Lecca, Alessandro Rizzi, Raul Paolo Serapioni
Retinex is an early and famous theory attempting to estimate the human color sensation derived from an observed scene. When applied to a digital image, the original implementation of retinex estimates the color sensation by modifying the pixels channel intensities with respect to a local reference white, selected from a set of random paths. The spatial search of the local reference white influences the final estimation. The recent algorithm energy-driven termite retinex (ETR), as well as its predecessor termite retinex, has introduced a new path-based image aware sampling scheme, where the paths depend on local visual properties of the input image...
June 2017: IEEE Transactions on Image Processing: a Publication of the IEEE Signal Processing Society
https://www.readbyqxmd.com/read/28349099/draft-genome-of-the-fungus-growing-termite-pathogenic-fungus-ophiocordyceps-bispora-ophiocordycipitaceae-hypocreales-ascomycota
#18
Benjamin H Conlon, Jannette Mitchell, Z Wilhelm de Beer, Christian Carøe, M Thomas P Gilbert, Jørgen Eilenberg, Michael Poulsen, Henrik H de Fine Licht
This article documents the public availability of genome sequence data and assembled contigs representing the partial draft genome of Ophiocordyceps bispora. As one of the few known pathogens of fungus-farming termites, a draft genome of O. bispora represents the opportunity to further the understanding of disease and resistance in these complex termite societies. With the ongoing attempts to resolve the taxonomy of the Hypocralaean family, more genetic data will also help to shed light on the phylogenetic relationship between sexual and asexual life stages...
April 2017: Data in Brief
https://www.readbyqxmd.com/read/28334067/response-of-the-formosan-subterranean-termite-to-neighboring-con-specific-populations-after-baiting-with-noviflumuron
#19
Sarah Bernard, Weste Osbrink, Nan-Yao Su
Coptotermes formosanus Shiraki are economically important subterranean termites, particularly in the Southeastern United States where they are considered invasive. Where two C. formosanus populations met, aggressive encounters resulted in blockages in tunnels, but reinvading termites unblocked obstructions or constructed new tunnels. Experiments in planar arenas in which one population of C. formosanus was baited resulted in elimination of baited termites and subsequent reinvasion of territory by neighboring termites...
April 1, 2017: Journal of Economic Entomology
https://www.readbyqxmd.com/read/28334021/the-effect-of-remnant-forest-on-insect-successional-response-in-tropical-fire-impacted-peatland-a-bi-taxa-comparison
#20
Kok-Boon Neoh, Lee-Jin Bong, Ahmad Muhammad, Masayuki Itoh, Osamu Kozan, Yoko Takematsu, Tsuyoshi Yoshimura
Fire has become a common feature in tropical drained peatlands, and it may have detrimental impacts on the overall biodiversity of the forest ecosystem. We investigated the effect of fire on termite and ant assemblages and the importance of remnant forest in restoring species diversity in fire-impacted tropical peat swamp forests. The species loss of both termites and ants was as high as 50% in some fire-impacted peats compared to remnant forests, but in most cases the species richness for termites and ants was statistically equal along the land uses surveyed...
2017: PloS One
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