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uBio  Web  Results 1 - 10 of about 365 Synonyms:    Litoria (Australasian Treefrogs)  Broader Terms:    Hylidae (tree frogs)     Litoria (Australasian Treefrogs)     Pelodryadinae (austro-papuan tree frogs)  More Specific:    Litoria (Australasian Treefrogs)     Litoria adelaidensis     Litoria alboguttata     Litoria albolabris     Litoria amboinensis     Litoria andiirrmalin (Cape melville treefrog)     Litoria angiana     Litoria arfakiana     Litoria aruensis     Litoria auae     Litoria aurea (Green and golden bell frog)     Litoria aurea raniformis     Litoria barringtonensis     Litoria becki     Litoria bibonius     Litoria bicolor     Litoria booroolongensis (Booroolong frog)     Litoria brevipalmata (Green-thighed frog)     Litoria brongersmai     Litoria bulmeri     Litoria burrowsae     Litoria burrowsi     Litoria caerula     Litoria caerulea (Australian green tree frog)     Litoria capitula     Litoria castanea (Yellow-spotted tree frog)     Litoria cavernicola (Cave-dwelling frog)     Litoria chloris     Litoria chloronota     Litoria citropa     Litoria congenita     Litoria conicula     Litoria contrastens     Litoria cooloolensis (Cooloola tree frog)     Litoria coplandi     Litoria corbeni     Litoria curvata     Litoria cyclorhynchus     Litoria dahlii     Litoria darlingtoni     Litoria daviesae     Litoria dentata     Litoria dorsalis     Litoria dorsivena     Litoria electrica     Litoria elkeae     Litoria eucnemis     Litoria everetti (Everett's treefrog)     Litoria ewingi     Litoria ewingii     Litoria exophthalmia     Litoria fallax (Eastern Dwarf Treefrog)     Litoria flavescens     Litoria flavipunctata     Litoria freycineti (Wallum rocketfrog)     Litoria genimaculata     Litoria gilleni     Litoria glandulosa     Litoria gracilenta     Litoria graminea     Litoria havina     Litoria impura     Litoria inermis     Litoria infrafrenata     Litoria infrafrenata infrafrenata     Litoria infrafrenata militaria     Litoria iris     Litoria javana     Litoria jenolanensis     Litoria jervisiensis     Litoria jeudii     Litoria jungguy     Litoria krefftii     Litoria kumae     Litoria latopalmata  ...    Latest Articles on Litoria from uBioRSS Significant population genetic structuring but a lack of phylogeographic st... - Australian Journal of Zoology Modelling skin surface areas involved in water transfer in the Palmate Newt... - NRC Research Press: Canadian Journal of Zoology External Resources: Did you mean: Litorea ? Common Names: Australasian Treefrogs 1.  Antioxidant activities of major tryptophyllin L peptides: A joint investigation of Gaussian-based 3D-QSAR and radical scavenging experiments. Tran TTN, Tran DP, Nguyen VC, Tran TDT, Bui TTT, Bowie JH Journal of peptide science : an official publication of the European Peptide Society J Pept Sci Antioxidant activities of major tryptophyllin L peptides: A joint investigation of Gaussian-based 3D-QSAR and radical scavenging experiments. e3295 10.1002/psc.3295 The red tree frog Litoria rubella from Australia has been studied for several decades showing that their dorsal skin glands secrete a number of small peptides containing a Pro-Trp sequence, known as tryptophyllin L peptides. Although peptides from many genera of Australian frogs have been reported to possess a variety of biological activities, the bioactivities of this peptide family have remained to be discovered. In this study, we investigated the antioxidant potency of a number of tryptophyllin L peptides for the first time using a joint statistical and experimental approach in which predictions based on Gaussian three-dimensional quantitative structure-activity relationship (3D-QSAR) models were employed to guide an in vitro experimental investigation. Two tryptophyllin tripeptides P-W-L (OH) and P-W-L (NH2 ) were predicted to have the Trolox equivalent antioxidant capacity (TEAC) values of 0.80 and 0.87 ?M Trolox/?M peptide, respectively. With those promising results, antioxidant capabilities of five tryptophyllin L peptides with the common core Pro-Trp-Leu were synthesized and subjected to 1,1-diphenyl-2-picrylhydrazyl (DPPH), ferric reducing ability of plasma (FRAP) and 2,2'-azino-bis(3-ethylbenzothiazoline-6-sulphonic acid) radical cation (ABTS?+ ) radical scavenging assays. The tests indicated that all the tested tryptophyllin L peptides, noticeably S-P-W-L (OH) and F-P-W-L (NH2 ), are strong ABTS?+ radical scavengers and moderate scavengers in the other two assays. The results, thus, suggested that the tryptophyllin L peptides are likely to be a part of the skin antioxidant system helping the frog to cope with drastic change in oxygen exposure and humidity, as they inhabit over a large area of Australia with a wide climate variation. © 2021 European Peptide Society and John Wiley & Sons, Ltd. Tran Thi Thanh Nha TTN https://orcid.org/0000-0003-4792-6540 Faculty of Chemical Engineering, Industrial University of HoChiMinh City, 14 Nguyen Van Bao, Ho Chi Minh, 700000, Vietnam. Tran Dinh Phien DP Department of Chemistry and Environment, Vietnam-Russia Tropical Centre, 63 Nguyen Van Huyen, Nghia Do, Cau Giay, Ha Noi, 11307, Vietnam. Nguyen Van Cuong VC Faculty of Chemical Engineering, Industrial University of HoChiMinh City, 14 Nguyen Van Bao, Ho Chi Minh, 700000, Vietnam. Tran Thi Dieu Thuan TDT Faculty of Chemical Engineering, Industrial University of HoChiMinh City, 14 Nguyen Van Bao, Ho Chi Minh, 700000, Vietnam. Bui Thi Thu Thuy TTT Bowie John Hamilton JH Faculty of Science, The University of Adelaide, Adelaide, South Australia, 5005, Australia. eng Journal Article 2021 01 06 England J Pept Sci 9506309 1075-2617 IM 3D-QSAR DPPH radical scavenging activity FRAP Gaussian-based CoMSIA model TEAC antioxidants tryptophyllin L peptides 2020 10 15 2020 12 08 2020 12 10 2021 1 7 6 16 2021 1 8 6 0 2021 1 8 6 0 aheadofprint 33410242 10.1002/psc.3295 Ecol Appl Connectivity over a disease risk gradient enables recovery of rainforest frogs. e02152 10.1002/eap.2152 Chytridiomycosis has been a key driver of global frog declines and extinctions, particularly for high-altitude populations across Australia and the Americas. While recent evidence shows some species are recovering, the extent of such recoveries and the mechanisms underpinning them remain poorly resolved. We surveyed the historical latitudinal and elevational range of four Australian rainforest frogs that disappeared from upland sites between 1989 and 1994 to establish their contemporary distribution and elevational limits, and investigate factors affecting population recovery. Five rainforest streams were surveyed from mountain-base to summit (30 sites in total), with swabs collected from the target species (Litoria dayi, L. nannotis, L. rheocola, and L. serrata) to determine their infection status, and data loggers deployed to measure microclimatic variation across the elevational gradient. Infection probability increased with elevation and canopy cover as it was tightly and inversely correlated with stream-side air temperature. Occupancy patterns suggest varying responses to this disease threat gradient. Two species, L. rheocola and L. serrata, were found over their full historical elevational range (?1,000 m above sea level [asl]), while L. dayi was not detected above 400 m (formerly known up to 900 m asl) and L. nannotis was not detected above 800 m (formerly known up to 1,200 m asl). Site occupancy probability was negatively related to predicted infection prevalence for L. dayi, L. nannotis, and L. rheocola, but not L. serrata, which appears to now tolerate high fungal burdens. This study highlights the importance of environmental refuges and connectivity across disease risk gradients for the persistence and natural recovery of frogs susceptible to chytridiomycosis. Likewise, in documenting both interspecific variation in recovery rates and intraspecific differences between sites, this study suggests interactions between disease threats and host selection exist that could be manipulated. For example, translocations may be warranted where connectivity is poor or the increase in disease risk is too steep to allow recolonization, combined with assisted selection or use of founders from populations that have already undergone natural selection. © 2020 by the Ecological Society of America. Bell Sara C SC 0000-0003-1327-0360 College of Public Health, Medical and Veterinary Sciences, James Cook University, Townsville, Queensland, 4811, Australia. One Health Research Group, Melbourne Veterinary School, Faculty of Veterinary and Agricultural Sciences, University of Melbourne, Werribee, Victoria, 3030, Australia. Heard Geoffrey W GW Institute of Land, Water and Society, Charles Sturt University, Albury, New South Wales, 2640, Australia. Victorian Department of Environment, Land, Water and Planning, Arthur Rylah Institute for Environmental Research, Heidelberg, Victoria, 3084, Australia. Berger Lee L One Health Research Group, Melbourne Veterinary School, Faculty of Veterinary and Agricultural Sciences, University of Melbourne, Werribee, Victoria, 3030, Australia. Skerratt Lee F LF One Health Research Group, Melbourne Veterinary School, Faculty of Veterinary and Agricultural Sciences, University of Melbourne, Werribee, Victoria, 3030, Australia. eng FT100100375 Australian Research Council International LP110200240 Australian Research Council International Institute for Land, Water and Society Research Cen Charles Sturt University International Journal Article Research Support, Non-U.S. Gov't 2020 06 01 United States Ecol Appl 9889808 1051-0761 IM Altitude Animals Anura Australia Chytridiomycota Mycoses Rainforest amphibian chytridiomycosis connectivity disease gradient infection risk prevalence recovery refuge simulation temperature 2019 09 09 2020 02 14 2020 03 30 2020 4 29 6 0 2021 1 22 6 0 2020 4 29 6 0 ppublish 32343856 10.1002/eap.2152 Chem Biol Drug Des Design of new truncated derivatives based on direct and reverse mirror repeats of first six residues of Caerin 4 antimicrobial peptide and evaluation of their activity and cytotoxicity. 801-811 10.1111/cbdd.13689 Caerin 4 is a family of AMPs isolated from the frog called Litoria caerulea. In silico drug designing methods and using machine learning algorithms for AMPs design can reduce their usage restrictions such as production costs and the time required for investigation of their activity and toxicity. In this study, two short peptides were designed based on direct and reverse mirror repeats of GLWQKI conserved sequence from Caerin 4 family that called dCar12 and rCar12. Also, Caerin 4.1 was synthesized without primary GLWQKI sequence and named Car7-23 . Following the synthesis of peptides, their antimicrobial properties, cytotoxicity, secondary structure, and mode of action were further evaluated. Results indicated that rCar12 had a good antibacterial activity (at an MIC of 3.9-62.5 µg/ml), while Car7-23 did not have any antimicrobial properties. Cytotoxicity of rCar12 at MICs range was <5%, which is much less than Caerin 4.1. In conclusion, rCar12 with reverse mirror repeat has different functional properties compared with dCar12. These results corroborate the fact that in two peptides with identical residues and length, the position and arrangement of amino acids are very important concerning peptide function. Moreover, GLWQKI sequence is highly crucial for the antimicrobial activity of Caerin 4 antimicrobial peptide family. © 2020 John Wiley & Sons A/S. Madanchi Hamid H https://orcid.org/0000-0002-6527-7321 Department of Biotechnology, School of Medicine, Semnan University of Medical Sciences, Semnan, Iran. Drug Design and Bioinformatics Unit, Department of Medical Biotechnology, Biotechnology Research Center, Pasteur Institute of Iran, Tehran, Iran. Sardari Soroush S Drug Design and Bioinformatics Unit, Department of Medical Biotechnology, Biotechnology Research Center, Pasteur Institute of Iran, Tehran, Iran. Shajiee Hooman H Damghan Branch, Department of Biology, Islamic Azad University, Damghan, Iran. Taherian Sina S Damghan Branch, Department of Biology, Islamic Azad University, Damghan, Iran. Ashkar Maryam M Damghan Branch, Department of Biology, Islamic Azad University, Damghan, Iran. Johari Behrooz B Department of Medical Biotechnology, School of Medicine, Zanjan University of Medical Sciences, Zanjan, Iran. Shabani Ali Akbar AA Department of Biotechnology, School of Medicine, Semnan University of Medical Sciences, Semnan, Iran. Sharafi Shahram S Damghan Branch, Department of Biology, Islamic Azad University, Damghan, Iran. eng Journal Article 2020 04 19 England Chem Biol Drug Des 101262549 1747-0277 IM Litoria caerulea antimicrobial peptide caerin in silico drug design machine learning algorithm 2019 10 20 2020 03 03 2020 03 14 2020 4 8 6 0 2020 4 8 6 0 2020 4 8 6 0 ppublish 32259385 10.1111/cbdd.13689 Aust Vet J Atypical Brucella sp in captive Australian green tree frogs (Litoria caerulea): clinical features, pathology, culture and molecular characterization. 216-221 10.1111/avj.12925 Brucella spp. are globally important zoonotic bacteria, which have historically been considered pathogens of warm-blooded species. More recently, new strains of Brucella have been cultured from a broader range of animals including terrestrial and marine mammals and amphibians. These new isolates are classified as 'atypical' brucellae and differ from the classical stains by host tropism, phenotypic traits or phylogenetic distance. Atypical Brucella have previously been described as the cause of localised and systemic infection in frogs. This report describes the clinical features, pathology, microbiology and molecular characteristics of persistent Brucella spp. infection in two Australian green tree frogs and its isolation in an additional in-contact, clinically well frog. The two frogs that died had severe nephritis attributed to brucellosis with disseminated infection identified in one animal. © 2020 Australian Veterinary Association. Latheef S S Gribbles Veterinary Pathology, Clayton, Victoria, 3168, Australia. Keyburn A A CSIRO Australian Animal Health Laboratory, Division of Livestock Industries, Geelong, Victoria, 3220, Australia. Broz I I CSIRO Australian Animal Health Laboratory, Division of Livestock Industries, Geelong, Victoria, 3220, Australia. Bagnara A A CSIRO Australian Animal Health Laboratory, Division of Livestock Industries, Geelong, Victoria, 3220, Australia. Bayley C C Gribbles Veterinary Pathology, Clayton, Victoria, 3168, Australia. Frith S S Melbourne Zoo, Parkville, Victoria, 3052, Australia. Dobson E C EC Gribbles Veterinary Pathology, Clayton, Victoria, 3168, Australia. eng Case Reports 2020 03 09 England Aust Vet J 0370616 0005-0423 0 DNA, Bacterial IM Animals Australia Brucella genetics Brucellosis veterinary DNA, Bacterial Phylogeny atypical Brucella green tree frog histopathology microbiology molecular biology 2019 10 16 2020 01 12 2020 01 14 2020 3 11 6 0 2020 7 2 6 0 2020 3 11 6 0 ppublish 32153019 10.1111/avj.12925