741 results match your criteria water mites


Household determinants of biocontaminant exposures in Canadian homes.

Indoor Air 2021 Sep 25. Epub 2021 Sep 25.

Air Health Effects Assessment Division, Water and Air Quality Bureau, Health Canada, Ottawa, Ontario, Canada.

Exposure to biocontaminants, such as dust mites, animal dander, bacteria, and mold, is associated with a range of health effects. This study identified household characteristics associated with indoor biocontaminant loadings in four Canadian cities. Floor dust was collected in 290 Canadian homes in Edmonton, Halifax, Montreal, and Windsor. Read More

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September 2021

Biodegradation of phorate by bacterial strains in the presence of humic acid and metal ions.

J Basic Microbiol 2021 Sep 14. Epub 2021 Sep 14.

Department of Microbiology, Lovely Professional University, Jalandhar, Punjab, India.

Phorate is a systemic insecticide used to eradicate mites, insects, and nematodes. Extensive use of this organophosphate has engendered severe environmental concerns. The current research aimed to explore the kinetic pathways of phorate biodegradation in aqueous solutions. Read More

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September 2021

Thermal processing of insect allergens and IgE cross-recognition in Italian patients allergic to shrimp, house dust mite and mealworm.

Food Res Int 2021 Oct 30;148:110567. Epub 2021 Jun 30.

Institute of Sciences of Food Production-CNR, Grugliasco, (TO), Italy. Electronic address:

Edible insects are considered as a promising and sustainable alternative protein source for humans, although risk assessments, with particular reference to the allergic potential of insect proteins, are required. Considering that insects are likely to be consumed after processing, it is crucial to assess how processing can influence allergenicity. In our study, we investigated how boiling and frying affect the IgE cross-recognition of proteins from five edible insects (mealworm, buffalo worm, silkworm, cricket and grasshopper). Read More

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October 2021

Extended depth of focus ultraviolet imaging compared with laser scanning confocal microscopy for the study of micro-Arthropoda surface texture, with the description of a new species of Brachypodopsis (Acari: Hydrachnidia).

Microsc Res Tech 2021 Sep 8. Epub 2021 Sep 8.

Museo Nacional de Ciencias Naturales, CSIC, Madrid, Spain.

Visualization and representation are two processes at the core of basic biodiversity studies. Visualization involves the examination, sorting, and evaluation of similarities and differences among specimens by specialists who then assign them to the same or different species. It is a cognitive process. Read More

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September 2021

Safety of frozen and dried formulations from whole yellow mealworm ( larva) as a novel food pursuant to Regulation (EU) 2015/2283.

EFSA J 2021 Aug 25;19(8):e06778. Epub 2021 Aug 25.

Following a request from the European Commission, the EFSA Panel on Nutrition, Novel Foods and Food Allergens (NDA) was asked to deliver an opinion on frozen and dried formulations from whole yellow mealworm ( larva) as a novel food (NF) pursuant to Regulation (EU) 2015/2283. The term yellow mealworm refers to the larval form of the insect species . The NF comprises the frozen and freeze-dried formulations of the yellow mealworm, whole or in the form of powder. Read More

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Safety of frozen and dried formulations from whole house crickets (Acheta domesticus) as a Novel food pursuant to Regulation (EU) 2015/2283.

EFSA J 2021 Aug 17;19(8):e06779. Epub 2021 Aug 17.

Following a request from the European Commission, the EFSA Panel on Nutrition, Novel Food and Food Allergens (NDA) was asked to deliver an opinion on the safety of frozen and dried formulations from house crickets (Acheta domesticus) as a novel food pursuant to Regulation (EU) 2015/2283. The NF is proposed in three formulations: (i) frozen, (ii) dried, (iii) ground. The main components of the NF are protein, fat and fibre (chitin) in the dried form of the NF, and water, protein, fat and fibre (chitin) in the frozen form of the NF. Read More

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Biological responses of (Acari: Tetranychidae) to sub-lethal concentrations of the entomopathogenic fungus .

Bull Entomol Res 2021 Aug 25:1-8. Epub 2021 Aug 25.

Department of Plant Protection, Faculty of Agriculture, University of Tehran, Karaj, Iran.

Tetranychus urticae (Acari: Tetranychidae) is one of the most important pests of agricultural crops with worldwide distribution causing considerable damage to different products. Application of chemical acaricides is one of the most important strategies used for the control of this pest. Entomopathogenic fungi, however, have been proposed as alternative control agents. Read More

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Molecular diet studies of water mites reveal prey biodiversity.

PLoS One 2021 29;16(7):e0254598. Epub 2021 Jul 29.

Department of Physiology, Wayne State University School of Medicine, Detroit, Michigan, United States of America.

Water mites are diverse aquatic invertebrates that provide potentially important ecosystem and economic services as bioindicators and mosquito biocontrol; however, little is known about water mite digestive physiology, including their diet in nature. Water mites, much like their spider relatives, liquefy their prey upon consumption. This results in the absence of morphologically identifiable prey in water mite mid-gut. Read More

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The Impact of Roads on the Redistribution of Plants and Associated Arthropods in a Hyper-Arid Ecosystem.

J Insect Sci 2021 Jul;21(4)

Mitrani Department of Desert Ecology, Ben-Gurion University of the Negev, 8499000 Midreshet Ben-Gurion, Israel.

The construction of vehicular roads likely affects the distribution of natural resources. Although the effects of roads on different ecosystem aspects have been extensively studied, studies in arid and, particularly, in hyper-arid ecosystems are scarce. In drylands, where water is the main limiting factor, the effect of roads on the redistribution of water may have strong subsequent effects on the ecosystem, especially when roads cross natural water flow paths. Read More

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Safety of frozen and dried formulations from migratory locust () as a Novel food pursuant to Regulation (EU) 2015/2283.

EFSA J 2021 Jul 2;19(7):e06667. Epub 2021 Jul 2.

Following a request from the European Commission, the EFSA Panel on Nutrition, Novel Food and Food Allergens (NDA) was asked to deliver an opinion on the safety of frozen and dried formulations from migratory locust (Locusta migratoria) as a novel food pursuant to Regulation (EU) 2015/2283. The term migratory locust refers to the adult of the insect species Locusta migratoria. The NF is proposed in three formulations i) frozen without legs and wings; ii) dried without legs and wings; iii) ground with legs and wings. Read More

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Assessment of risks to listed species from the use of atrazine in the USA: a perspective.

J Toxicol Environ Health B Crit Rev 2021 Aug 5;24(6):223-306. Epub 2021 Jul 5.

Centre for Toxicology, University of Guelph, Guelph, Ont, Canada.

Atrazine is a triazine herbicide used predominantly on corn, sorghum, and sugarcane in the US. Its use potentially overlaps with the ranges of listed (threatened and endangered) species. In response to registration review in the context of the Endangered Species Act, we evaluated potential direct and indirect impacts of atrazine on listed species and designated critical habitats. Read More

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Two new water mite species of the Sperchon tridentatus-group from Asia (Acari, Hydrachnidia, Sperchontidae).

Authors:
Petr V Tuzovskij

Zootaxa 2021 May 13;4970(1):143150. Epub 2021 May 13.

Papanin Institute for Biology of Inland Waters of the Russian Academy of Sciences, Borok, Yaroslavl Province, 152742 Russia..

In the present study a description of two new species of the Sperchon tridentatus-group from Asia is presented. An identification key is given for the known species of the group. Read More

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The first record of the water mite genus Ljania Thor, 1898 (Acari, Hydrachnidiae, Aturidae) from China, with description of two new species.

Zootaxa 2021 May 14;4970(2):391398. Epub 2021 May 14.

Institute of Entomology, Guizhou University, Guizhou Provincial Key Laboratory for Agricultural Pest Management of the Mountainous Region, Scientific Observing and Experimental Station of Crop Pests in Guiyang, Ministry of Agriculture and Rural Affairs of the People's Republic of China, Guiyang 550025, P. R. China..

This is the first record of the genus Ljania Thor, 1898 (Axonopsinae, Aturidae, Hydrachnidiae, Acari) from China. Two new species, Ljania jini sp. nov. Read More

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A new water mite species of the Hygrobates fluviatilis-complex from Russia (Acari, Hydrachnidia, Hygrobatidae).

Authors:
Petr V Tuzovskij

Zootaxa 2021 May 19;4974(1):193196. Epub 2021 May 19.

Papanin Institute for Biology of Inland Waters of the Russian Academy of Sciences, Borok, Yaroslavl Province, 152742 Russia..

The Hygrobates fluviatilis-complex includes the following ten species:H. fluviatilis (Ström, 1768), H.arenarius Smit Pešić, 2017, H. Read More

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Systematics, distribution and morphology of the newt parasitic water mites of the subgenus Lurchibates Goldschmidt amp; Fu, 2011 (Acari, Hydrachnidia, Hygrobatidae, Hygrobates Koch, 1837), including the description of four new species and a key to all so far known species.

Zootaxa 2021 Jun 11;4985(1):136. Epub 2021 Jun 11.

Science Research Center, Hosei University. Fujimi 2-17-1, Chiyoda-ku, Tokyo 102-8160, Japan..

Four new water mite species of the genus Hygrobates, subgenus Lurchibates (Acari, Hydrachnidia, Hygrobatidae) are described. Hygrobates (Lurchibates) macrochela sp. nov. Read More

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Description of a new water mite species of the genus Thyopsis (Protz, 1899) (Acari, Hydrachnidia: Hydryphantidae) from Kazakhstan.

Authors:
Petr V Tuzovskij

Zootaxa 2021 Jun 11;4985(1):145150. Epub 2021 Jun 11.

Papanin Institute for Biology of Inland Waters of the Russian Academy of Sciences, Borok, Yaroslavl Province, 152742, Russia..

The world fauna of the genus Thyopsis Piersig, 1899 currently includes the following species: Th. amarginata Habeeb, 1963, Th. cancellata (Protz, 1896), Th. Read More

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Freezing: how do water mites (Acari: Hydrachnidia) survive exposure to sub-zero temperatures?

Exp Appl Acarol 2021 Jul 21;84(3):565-583. Epub 2021 Jun 21.

Institute of Marine and Environmental Sciences, Center of Molecular Biology and Biotechnology, University of Szczecin, Szczecin, Poland.

Until now, very little is known about the ability of adult and deutonymph water mites (Acari, Hydrachnidia) to survive in sub-zero temperatures. Information concerns mainly water mites from vernal astatic waters, and the knowledge has never been experimentally verified. To determine the sensitivity of water mites to freezing, experiments were conducted on (1) the impact of acclimatization, (2) temperature, and (3) duration of freezing on survival, (4) the survival rate of water mites from various types of water bodies, and (5) the survival rate of water mites from different climatic zones. Read More

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First description of freshwater mite Unionicola sauerensis sp. nov. infesting thick-shelled river mussel Unio crassus.

Dis Aquat Organ 2021 Jun 17;145:63-77. Epub 2021 Jun 17.

Clinical Division of Fish Medicine, University of Veterinary Medicine, 1210 Vienna, Austria.

A sample of 30 thick-shelled river mussels Unio crassus Philipsson (Unionida: Unionidae) was collected from the River Sauer in Luxembourg to acquire data on parasitic infestations of the mussels. Among other parasites, different development stages of freshwater mites were collected from the gills and the mantle of the mussels and were documented with bright-field, stereo, and confocal laser scanning microscopy and microscopic X-ray computed tomography. The retrieved data allowed a morphological description of larvae and female adults of the mites and assigning them to the genus Unionicola Haldeman (Trombidiformes: Unionicolidae) and the subgenus Pentatax Thor. Read More

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Acaricidal Efficacy of Jasmine and Lavender Essential Oil or Mustard Fixed Oil against Two-Spotted Spider Mite and Their Impact on Growth and Yield of Eggplants.

Biology (Basel) 2021 May 6;10(5). Epub 2021 May 6.

National Organic Agriculture Center, Ministry of Environment, Water and Agriculture, Unaizah 56467, Saudi Arabia.

Eggplant is repeatedly attacked by numerous pests, particularly two-spotted spider mite (TSSM), which considerably decline plant productivity. Synthetic acaricides are frequently applied for controlling TSSM, resulting in environmental pollution. The utilization of rational novel substances which repel or prevent TSSM establishment represents a sustainable eco-friendly to reduce the utilization of agrochemicals. Read More

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Directed evolution of glycosyltransferase for enhanced efficiency of avermectin glucosylation.

Appl Microbiol Biotechnol 2021 Jun 27;105(11):4599-4607. Epub 2021 May 27.

Department of Bio-Molecular Science, KRIBB School of Bioscience, Korea University of Science and Technology (UST), Yusong, Daejeon, 305-806, Republic of Korea.

Avermectin, produced by Streptomyces avermitilis, is an active compound protective against nematodes, insects, and mites. However, its potential usage is limited by its low aqueous solubility. The uridine diphosphate (UDP)-glycosyltransferase (BLC) from Bacillus licheniformis synthesizes avermectin glycosides with improved water solubility and in vitro antinematodal activity. Read More

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Compatibility of and a Plant Secondary Metabolite: A Novel Modeling Approach to Invade Host Defense for Effective Control of (McGregor) on Date Palms.

Authors:
Abid Hussain

J Fungi (Basel) 2021 Apr 26;7(5). Epub 2021 Apr 26.

Institute of Research and Consultancy, King Faisal University, Hofuf, Al-Ahsa 31982, Saudi Arabia.

(McGregor) is an important pest causing substantial economic losses to date palm fruits (dates). The application of mycopathogens with plant secondary metabolites, which may proceed synergistically is thus essential to augment sustainable management strategy for . In this regard, extensive laboratory experimentation involving compatibility, synergism, and host defense was performed to develop stable pest management option. Read More

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A new water mite genus from Kazakhstan (Acari, Hydrachnidia, Hydryphantidae).

Zootaxa 2021 Apr 1;4951(1):zootaxa.4951.1.11. Epub 2021 Apr 1.

Papanin Institute for Biology of Inland Waters of the Russian Academy of Sciences, Borok, Yaroslavl Province, 152742, Russia..

This paper describes a new genus of the water mite family Hydryphantidae. The material was collected by V. Stolbov in 2019 in running waters in Kazakhstan. Read More

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Taxonomic notes on Malaconothridae (Acari, Oribatida) associated with water hyacinth in Egypt.

Authors:
Sergey G Ermilov

Zootaxa 2021 Mar 26;4949(3):zootaxa.4949.3.9. Epub 2021 Mar 26.

Institute of Environmental and Agricultural Biology (X-BIO), Tyumen State University, Tyumen, Russia..

Three Egyptian species of the oribatid mite family Malaconothridae, all found on roots of the floating aquatic plant Eichhornia crassipes in the River Nile, are analyzed. Trimalaconothrus crassipes Ramadan, Ismail Mustafa, 2017 is recombined to Tyrphonothrus crassipes (Ramadan, Ismail Mustafa, 2017) (comb. nov. Read More

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Fitness Costs Associated with Pyrethroid Resistance in Halotydeus destructor (Tucker) (Acari: Penthaleidae) Elucidated Through Semi-field Trials.

J Econ Entomol 2021 06;114(3):1270-1281

School of BioSciences, The University of Melbourne, VIC 3010, Australia.

Pyrethroid resistance in the redlegged earth mite, Halotydeus destructor (Tucker), is primarily attributed to a kdr (knockdown resistance) mutation in the parasodium channel gene. To assess fitness costs associated with this resistance, adult resistant and susceptible populations were mixed in different proportions in microcosm tubs and placed in a shade-house simulating field conditions. Three separate experiments were undertaken whereby parental mites were collected from the field and offspring were followed for two to three generations. Read More

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Determinants of prevalence and co-infestation by ecto- and endoparasites in the Atlas day gecko, Quedenfeldtia trachyblepharus, an endemic species of Morocco.

Parasitol Res 2021 Jul 22;120(7):2543-2556. Epub 2021 Mar 22.

Laboratory of Water, Biodiversity and Climate Change, Faculty of Sciences Semlalia, Department of Biology, Cadi Ayyad University, 2390 Prince My Abdellah, 40000, Marrakech, Morocco.

The present work was undertaken to investigate the occurrence of ectoparasites (mites and ticks) and endoparasites (haemogregarines and helminths) in the Atlas day gecko, Quedenfeldtia trachyblepharus (Boettger, 1874), a high-altitude Moroccan endemic lizard. The study examinated also the effect of some host parameters (age, sex, size, body condition), in addition to the season and altitude on the prevalence and intensity of parasite infestations. The study was conducted in three localities from May to September 2019. Read More

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Medium-term response of the natural grassland soil biota to multiwalled carbon nanotube contamination.

Sci Total Environ 2021 Jul 11;779:146392. Epub 2021 Mar 11.

Faculty of Civil and Transport Engineering, Poznan University of Technology, 60-965 Poznań, Poland. Electronic address:

Although the soil environment can potentially be exposed to contamination by carbon nanotubes (CNT), its impact on soil biology is poorly understood. In this study, we investigated the effect of the multiwalled CNT (MWCNT) contamination on different groups of soil organisms (microbial, micro- and mesofaunal communities) as well as the soil enzyme activity. The experimental mesocosms included the intact soil cores that were collected from a natural grassland. Read More

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Learnings from over a decade of increasing pesticide resistance in the redlegged earth mite, Halotydeus destructor (Tucker).

Pest Manag Sci 2021 Jun 12;77(6):3013-3024. Epub 2021 Mar 12.

Cesar Australia, Parkville, Australia.

Background: The redlegged earth mite, Halotydeus destructor (Tucker), is a destructive and economically important pest of winter grain crops and pastures in Australia. It is largely controlled by pesticides, but this mite has evolved resistance to pyrethroid and organophosphate chemicals. A national Resistance Management Strategy has been developed for pro-active management to delay further resistance evolution, though its success is reliant on a detailed understanding of the incidence, patterns of spread, current distribution and the nature of resistance in the field. Read More

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Do latitudinal and bioclimatic gradients drive parasitism in Odonata?

Int J Parasitol 2021 May 19;51(6):463-470. Epub 2021 Feb 19.

LESTES Lab, Department of Hydrobiology, Federal University of São Carlos, São Carlos, SP, Brazil. Electronic address:

Prevalence of parasites in wild animals may follow ecogeographic patterns, under the influence of climatic factors and macroecological features. One of the largest scale biological patterns on Earth is the latitudinal diversity gradient; however, latitudinal gradients may also exist regarding the frequency of interspecific interactions such as the prevalence of parasitism in host populations. Dragonflies and damselflies (order Odonata) are hosts of a wide range of ecto- and endoparasites, interactions that can be affected by environmental factors that shape their occurrence and distribution, such as climatic variation, ultraviolet radiation and vegetation structure. Read More

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Evaluation of bronchial challenge test results for use in assessment of paediatric eczema: a retrospective series.

Hong Kong Med J 2021 02 4;27(1):27-34. Epub 2021 Feb 4.

Department of Paediatrics, The Chinese University of Hong Kong, Hong Kong.

Background: Atopic dermatitis (AD), asthma, and allergic rhinitis are associated diseases involved in the atopic march. The bronchial challenge test (BCT) is a tool that evaluates airway hyperresponsiveness in patients with asthma. This study aimed to evaluate whether a positive BCT result is useful in assessment of paediatric AD. Read More

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February 2021

Lower bioenergetic costs but similar immune responsiveness under a heat wave in urban compared to rural damselflies.

Evol Appl 2021 Jan 9;14(1):24-35. Epub 2020 Jul 9.

Evolutionary Stress Ecology and Ecotoxicology University of Leuven Leuven Belgium.

There is mounting evidence that the widespread phenotypic changes in response to urbanization may reflect adaptations caused by rapid evolutionary processes driven by urban-related stressors. Compared to increased habitat fragmentation and pollution, adaptations towards another typical urban-related stressor, that is higher and longer lasting very high temperatures (heat waves), are much less studied. Notably, the sensitivities to heat waves of life-history traits and important fitness-related physiological traits such as immune responsiveness and bioenergetic variables (energy availability, energy consumption and their balance) have never been contrasted between urban and rural populations. Read More

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January 2021