Laboratory News & BioScience July 2017

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NEW ZEALAND LABORATORY NEWS | NEW ZEALAND BIOSCIENCE VOL. 26 NO. 3 | JULY 2017 Cryostats from Bio-Strategy Choose the cryosectioning solution that prepares you for fast, accurate and safe frozen sectioning Leica CM1860/CM1860UV The top selling brand and model of cryostat in New Zealand Manual sectioning and optional UVC disinfection Leica CM1950 Standard features include UVC disinfection, specimen head cooling and Cryozone Options include Manual or Motorised sectioning; Vacuum as a sectioning aid and for waste removal Leica CM3050S Standard features include Motorised sectioning, specimen head cooling, advanced sample orientation and Section counter & totaliser Consumables for Cryosectioning Blades, Frostbite, Mounting medium, Freezing medium, Coverslips, Side boxes & folders, Hematoxylin, Eosin, Clearium, Scotts tap water After Sales support 3 field service engineers, each with many years of experience servicing cryostats. All are NZ-based, registered electrical technicians, and cover the whole country. for more information please contact www.bio-strategy.com | T: 0800 34 24 66 Bio-Strategy has acquired VWR’s lab supplies businesses in Australia and New Zealand [ 4 ] LN_BioSci_0617_FP_LBS_Cryostats_trsfr.indd 1 23/06/2017 3:15:46 p.m.
NEW ZEALAND LABORATORY NEWS | NEW ZEALAND BIOSCIENCE Understanding disease-causing pathogens maximises tortoise survival Herpetologica – The populations of many turtle species are currently in decline because their habitats are being altered. Conservationists are working tirelessly to help preserve natural areas and their indigenous populations while scientists further their understanding of the causes population decline. Among these causes that hinder the persistence of some species are diseasecausing pathogens. Researchers from the University of Nevada and Colorado State University recently published a study in the journal Herpetologica that investigated how an upper respiratory tract disease (URTD) was affecting Mojave Tortoises. Scientists had studied URTD as a threat to the species; however, this was the first range-wide study to focus on the presence of the pathogen Mycoplasma agassizii. Between 2010 and 2012, 402 tortoises from 27 locations across California, Nevada and Utah were observed for clinical symptoms of URTD, and nasal lavage samples were collected. The appearance of clinical symptoms was analyzed individually from the nasal lavage. The results of the study indicated that some areas had diseased tortoises, but little to no trace of the pathogen M. agassizii was detected. The study also determined that even in areas of high frequency for the pathogen, clinical symptoms did not readily appear. The researchers found this particularly important, because there is a clear lag time between disease contraction and disease onset. Mycoplasma agassizii is believed to be present in most, or even all, tortoises, but the extent of the threat from the disease is undetermined. The researchers believe that gaining an understanding of how this pathogen relates to the development of URTD can be an important contributor towards a better understanding of how to increase the survival of Mojave Tortoises. “The ecological importance of this upper respiratory disease is contentious, yet management practices should account for the potential negative effects on local populations,” said researcher Chava Wietzman. “Agencies can use our analyses on relative frequency of this pathogen to develop strategies to maximize desert tortoise survival.” About Herpetologica Herpetologica is a quarterly journal of The Herpetologists’ League, containing original research articles on the biology of amphibians and reptiles. The journal serves herpetologists, biologists, ecologists, conservationists, researchers, and others interested in furthering knowledge of the biology of amphibians and reptiles. VOL. 26 NO. 3 | JULY 2017 NEW 2017 Catalogue Download new catalogue from our website or contact Tim Watts for a hard copy UltraMicroPump III and SMARTTouch Controller MTM-3 Motorised Stereotaxic Frame MemoryFlex (memory steel) surgical instruments Contact Tim Watts tim.watts@coherent.com.au +61 8 8150 5289 www.coherent.com.au [ 5 ]
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