Differentiation of pathogenic and saprophytic letospires. I. Growth at low temperatures.

Journal of Bacteriology
R C Johnson, V G Harris

Abstract

The minimal growth temperature of the pathogenic leptospires is between 13 and 15 C. The saprophytic leptospires have a minimal growth temperature between 5 and 10 C, or approximately 5 C below that of the pathogens. The capability of the saprophytic leptospires to grow at temperatures below those which allow the growth of the pathogenic leptospires provides a simple method of discrimination. With an inoculum yielding approximately 8 x 10(7) cells per ml in the test medium and an incubation temperature of 13 C, the saprophytic leptospires were easily differentiated from the pathogenic leptospires. All 13 saprophytic leptospires tested grew in the 10% rabbit serum medium at 13 C, whereas none of the 20 pathogens grew during the 30-day incubation period.

Citations

Jan 1, 1990·Microbiology and Immunology·M FukunagaY Yanagihara
May 7, 2011·Microbiology and Immunology·Antara ChakrabortyShin-Ichi Yoshida
Nov 9, 2005·American Journal of Veterinary Research·Justin J GreenleeClaire B Andreasen
Jan 15, 2021·Journal of Immunoassay & Immunochemistry·Olusola Lawrence AjayiTemitope Morenikeji Oladipo
Nov 28, 2013·The Veterinary Record·Z ArentW A Ellis
Jan 1, 1984·Transactions of the Royal Society of Tropical Medicine and Hygiene·C O EverardG D Nicholson
Mar 31, 2009·International Journal of Systematic and Evolutionary Microbiology·Andrew T SlackLee D Smythe
Jan 24, 1998·Journal of Bacteriology·J BelfaizaI Saint Girons
Aug 13, 2014·Diseases of Aquatic Organisms·Qingzhong WuLori Schwacke
Nov 3, 2010·Applied and Environmental Microbiology·Florence AviatMathieu Picardeau
Nov 9, 2010·Current Microbiology·Madanan G MadathiparambilSubhash C Sehgal
May 1, 1984·Archives of Microbiology·B Kefford, K C Marshall
Jun 17, 2020·Scientific Reports·Richard L HornsbyJarlath E Nally
Jan 1, 1989·Microbiology and Immunology·M Fukunaga, I Mifuchi
Feb 22, 2001·Antimicrobial Agents and Chemotherapy·A BrenotR Zuerner
Jan 7, 2014·PloS One·Bryan TroxellX Frank Yang
Mar 1, 1975·CRC Critical Reviews in Clinical Laboratory Sciences·R D Feigin, D C Anderson
Jun 11, 2011·New Zealand Veterinary Journal·S SubharatJ M Collins-Emerson
Jan 1, 1977·New Zealand Veterinary Journal·R E Brockie, D G Till
Apr 1, 1977·New Zealand Veterinary Journal·R E Brockie
Aug 1, 1977·New Zealand Veterinary Journal·K R MillarM W Hammington
Oct 1, 1978·New Zealand Veterinary Journal·D R Ris, K L Hamel
Oct 1, 1993·Australian Veterinary Journal·C S McClintockM Woodrow
Jun 28, 2011·Acta Biochimica Et Biophysica Sinica·Qing ZhangGuoping Zhao
Mar 22, 1979·Nature·H C Berg, L Turner
Aug 12, 2008·New Zealand Veterinary Journal·S DorjeeA L Ridler
Sep 10, 2014·The American Journal of Tropical Medicine and Hygiene·Robyn A StoddardAlex R Hoffmaster
Nov 13, 2007·Applied and Environmental Microbiology·Mathieu Picardeau

❮ Previous
Next ❯

Related Concepts

Trending Feeds

COVID-19

Coronaviruses encompass a large family of viruses that cause the common cold as well as more serious diseases, such as the ongoing outbreak of coronavirus disease 2019 (COVID-19; formally known as 2019-nCoV). Coronaviruses can spread from animals to humans; symptoms include fever, cough, shortness of breath, and breathing difficulties; in more severe cases, infection can lead to death. This feed covers recent research on COVID-19.

Blastomycosis

Blastomycosis fungal infections spread through inhaling Blastomyces dermatitidis spores. Discover the latest research on blastomycosis fungal infections here.

Nuclear Pore Complex in ALS/FTD

Alterations in nucleocytoplasmic transport, controlled by the nuclear pore complex, may be involved in the pathomechanism underlying multiple neurodegenerative diseases including Amyotrophic Lateral Sclerosis and Frontotemporal Dementia. Here is the latest research on the nuclear pore complex in ALS and FTD.

Applications of Molecular Barcoding

The concept of molecular barcoding is that each original DNA or RNA molecule is attached to a unique sequence barcode. Sequence reads having different barcodes represent different original molecules, while sequence reads having the same barcode are results of PCR duplication from one original molecule. Discover the latest research on molecular barcoding here.

Chronic Fatigue Syndrome

Chronic fatigue syndrome is a disease characterized by unexplained disabling fatigue; the pathology of which is incompletely understood. Discover the latest research on chronic fatigue syndrome here.

Evolution of Pluripotency

Pluripotency refers to the ability of a cell to develop into three primary germ cell layers of the embryo. This feed focuses on the mechanisms that underlie the evolution of pluripotency. Here is the latest research.

Position Effect Variegation

Position Effect Variagation occurs when a gene is inactivated due to its positioning near heterochromatic regions within a chromosome. Discover the latest research on Position Effect Variagation here.

STING Receptor Agonists

Stimulator of IFN genes (STING) are a group of transmembrane proteins that are involved in the induction of type I interferon that is important in the innate immune response. The stimulation of STING has been an active area of research in the treatment of cancer and infectious diseases. Here is the latest research on STING receptor agonists.

Microbicide

Microbicides are products that can be applied to vaginal or rectal mucosal surfaces with the goal of preventing, or at least significantly reducing, the transmission of sexually transmitted infections. Here is the latest research on microbicides.