نتایج جستجو برای: pathogenic microorganisms

تعداد نتایج: 101950  

Journal: :International Journal of Applied Sciences and Biotechnology 2013

2005
J. S. Virdi Pooja Sachdeva

Although pathogenic microorganisms constitute a small proportion of the microbial species, these are characterized by high genetic diversity. In the past decade or so, there has been considerable advancement in understanding the genetic population structures of pathogenic microorganisms that may range from strictly clonal to effectively panmictic. We, now understand that besides the staple mech...

2017
Lynn Chiu Thomas Bazin Marie-Elise Truchetet Thierry Schaeverbeke Laurence Delhaes Thomas Pradeu

Resident microbiota do not just shape host immunity, they can also contribute to host protection against pathogens and infectious diseases. Previous reviews of the protective roles of the microbiota have focused exclusively on colonization resistance localized within a microenvironment. This review shows that the protection against pathogens also involves the mitigation of pathogenic impact wit...

2016
V. Shanmugaraju

The Catharanthus roseus L. plant leaf extracts were prepared by using solvents such as acetone, ethanol, and chloroform and tested against pathogenic microorganisms to determine their antimicrobial potential. Catharanthus roseus leaf extracts showed maximum antibacterial activity against all the pathogenic microorganisms. Among the solvents tested, ethanol showed maximum antibacterial activity ...

2003
NENAD MIHELCIC

Larvae of the Southern pine coneworm, Diorycha amateella (Hulst) (Lepidoptera: Pyralidae), were collected monthly during the growing seasons of 1996 and 1997 from loblolly pine, Pinus taeda L., seed orchards in Alabama, Florida, Georgia, South Carolina, and Virginia, and examined for pathogenic microorganisms. One fungus, Beauueria bassiana (Bals.) Vuill, a granulosis virus (Baculoviridae: Euba...

Journal: :The Journal of Experimental Medicine 1952
David E. Rogers Ralph Tompsett

In a study of the phagocytosis of staphylococci by human leukocytes it has been observed that strains of staphylococci producing human infection were phagocytized by human polymorphonuclear leukocytes in vitro under conditions in which virulent pneumococci, streptococci, or Klebsiella were rarely engulfed. In the presence of human leukocytes in plasma there was a rapid fall in the numbers of vi...

Journal: :Frontiers in Immunology 2023

Multicellular organisms live in environments containing diverse nutrients and a wide variety of microbial communities. On the one hand, immune response can protect from intrusion exogenous microorganisms. other dynamic coordination anabolism catabolism is necessary factor for growth reproduction. Since production an energy-intensive process, activation cells accompanied by metabolic transformat...

2017
Qi Wang Nan Xiao Chenxu Yu

Routine identification of pathogenic microorganisms predominantly based on nutritional and biochemical tests is a time-consuming process; the delay may lead to fatal consequences at times. In this work, nanoparticle-induced nanoSPR enhanced IR spectroscopy was used in conjunction with a background elimination data processing algorithm to directly identify microorganisms in mixed cultures. It wa...

Journal: :International Journal of Environmental Research and Public Health 2019

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