| intraspecific phylogeography in the sedge frog litoria fallax (hylidae) indicates pre-pleistocene vicariance of an open forest species from eastern australia. | the eastern sedge frog litoria fallax (anura: hylidae) is common throughout the open forests and coastal wetlands along the eastern coast of australia. its range spans four biogeographical zones from northern queensland to central new south wales. phylogenetic analysis of mitochondrial dna (mtdna) haplotypes of 87 l. fallax individuals from 22 populations identified two major mtdna lineages, differing by 11-12% sequence divergence. the two clades of haplotypes were separated by the mcpherson ran ... | 2000 | 10736032 |
| testicular myxosporidiasis in anurans, with a description of myxobolus fallax n. sp. | during studies of amphibian sperm cryopreservation, a new species of myxosporidean parasite (myxozoa, myxosporae) was observed in the testes of the australian dwarf green tree frog litoria fallax (peters). myxosporidiasis was found to have no affect on l. fallax body condition or sperm numbers. myxobolus spores from l. fallax are morphologically distinct from myxobolus hylae spores (infecting the sympatric litoria aurea lesson) and the three previously named (exotic to australia) myxobolus speci ... | 2002 | 12075129 |
| sexually mediated shedding of myxobolus fallax spores during spermiation of litoria fallax (anura). | myxobolus fallax (myxosporea) infects the testes of the dwarf green tree frog litoria fallax without apparently affecting the host's health, behavior, or testicular sperm numbers or quality. we investigated the shedding m. fallax spores and the relationship between m. fallax infection and fertility in l. fallax. during natural spawning, comparisons were made between the prevalence and intensity of m. fallax infection, spore shedding, and fertilization rates. during the hormonal induction of sper ... | 2006 | 17067075 |
| effects of pond salinization on survival rate of amphibian hosts infected with the chytrid fungus. | the chytrid fungus batrachochytrium dendrobatidis has been implicated in the decline and extinction of amphibian populations worldwide, but management options are limited. recent studies show that sodium chloride (nacl) has fungicidal properties that reduce the mortality rates of infected hosts in captivity. we investigated whether similar results can be obtained by adding salt to water bodies in the field. we increased the salinity of 8 water bodies to 2 or 4 ppt and left an additional 4 water ... | 2015 | 25354647 |
| solution structure and membrane interactions of the antimicrobial peptide fallaxidin 4.1a: an nmr and qcm study. | the solution structure of fallaxidin 4.1a, a c-terminal amidated analogue of fallaxidin 4.1, a cationic antimicrobial peptide isolated from the amphibian litoria fallax, has been determined by nuclear magnetic resonance (nmr). in zwitterionic dodecylphosphocholine (dpc) micelles, fallaxidin 4.1a adopted a partially helical structure with random coil characteristics. the flexibility of the structure may enhance the binding and penetration upon interaction with microbial membranes. solid-state (31 ... | 2009 | 19894755 |
| damage to the gills and integument of litoria fallax larvae (amphibia: anura) associated with ionoregulatory disturbance at low ph. | in fish, exposure to waters of low ph causes significant damage to the gill resulting in fatal iono- and osmoregulatory disturbance. in amphibians, exposure to acid waters also disrupts ionic homeostasis, however the extent and nature of injuries to amphibian larvae from acid exposure are poorly understood. changes in gross morphology and ultrastructure of the gills and integument were examined, together with measures of na(+) efflux/uptake, in larval litoria fallax (amphibia: anura) following a ... | 2010 | 19879955 |
| the fallaxidin peptides from the skin secretion of the eastern dwarf tree frog litoria fallax. sequence determination by positive and negative ion electrospray mass spectrometry: antimicrobial activity and cdna cloning of the fallaxidins. | the glandular skin secretion of the eastern dwarf tree frog litoria fallax contains nine peptides named fallaxidins. the sequences of these peptides were elucidated using a combination of positive and negative electrospray mass spectrometry together with edman sequencing. among these peptides are: (i) fallaxidins 1.1 and 2.1 which have the sequences yfpipi-nh2 and fwpfm-nh2. the activities of these peptides are unknown, but it has been shown that they are not smooth muscle active, opioids or ant ... | 2008 | 18803332 |
| meta-transcriptomic identification of trypanosoma spp. in native wildlife species from australia. | wildlife species carry a remarkable diversity of trypanosomes. the detection of trypanosome infection in native australian fauna is central to understanding their diversity and host-parasite associations. the implementation of total rna sequencing (meta-transcriptomics) in trypanosome surveillance and diagnosis provides a powerful methodological approach to better understand the host species distribution of this important group of parasites. | 2020 | 32891158 |
| generation of a sexually mature individual of the eastern dwarf tree frog, litoria fallax, from cryopreserved testicular macerates: proof of capacity of cryopreserved sperm derived offspring to complete development. | amphibians are the most threatened vertebrate class globally based on recent rates of decline and extinction. sperm cryopreservation and other assisted reproductive technologies have the potential to help manage small and threatened populations and prevent extinctions. there are a growing number of reports of recovery of amphibian sperm after cryopreservation, but relatively few published reports of amphibian embryos generated from frozen sperm developing beyond metamorphosis to the adult stage ... | 2018 | 30151196 |