All posts by Postępy Mikrobiologii

Bakterie patogenne dla cebuli (Allium cepa L.)

Onion (Allium cepa L.) pathogenic bacteria
B. Kowalska, U. Smolińska
10 August 2017

1. Wstęp. 2. Burkholderia cepacia (Burkholder) Yabuuchi et al. 3. Burkholderia gladioli pv. alliicola (Burkholder) Young i wsp. 4. Bakterie z rodzaju Pseudomonas Migula 5. Serratia plymuthica i Serratia marcescens Bizio. 6. Pantoea ananatis (Serrano) Mergaert i wsp. 7. Pectobacterium carotovorum subsp. carotovorum (Jones) Waldee emend. Hauben i wsp. i Dickeya chrysanthemi Samson i wsp. 8. Enterobacter cloacae (Jordan) Hormaeche et Edwards. 9. Podsumowanie

Abstract: Bacterial diseases cause serious problems in cultivation of onion (Allium cepa L.) in Poland and abroad. There are several reasons of the losses in onion production caused by these diseases, e.g. weather conditions, biology and epidemiology of bacteria, lack of efficient pesticides, lack of disease-resistant cultivars. According to reports, onion is infected by following bacterial pathogens: Burkholderia gladioli pv. alliicola, Burkholderia cepacia, Pectobacterium carotovorum subsp. carotovorum, Dickeya chrysanthemi, Serratia plymuthica, Serratia marcescens, Enterobacter cloacae, Pantoea ananatis, Pseudomonas marginalis pv. marginalis and Pseudomonas viridiflava.

1. Introduction. 2. Burkholderia cepacia (Burkholder) Yabuuchi et al. 3. Burkholderia gladioli pv. alliicola (Burkholder) Young et al. 4. Genus Pseudomonas Migula bacteria 5. Serratia plymuthica and Serratia marcescens Bizio. 6. Pantoea ananatis (Serrano) Mergaert et al. 7. Pectobacterium carotovorum subsp. carotovorum (Jones) Waldee emend. Hauben et al. and Dickeya chrysanthemi Samson et al. 8. Enterobacter cloacae (Jordan) Hormaeche et Edwards. 9. Summary

Autor: Postępy Mikrobiologii
No Comment
Czytaj dalej

Mechanizmy wirulencji paciorkowców β-hemolizujących

Virulence mechanisms factors and pathogenic of β-hemolytic streptococci
K. Obszańska, I. Kern-Zdanowicz, I. Sitkiewicz
10 August 2017

1. Wstęp. 2. Paciorkowce grupy A (GAS). 3. Charakterystyka paciorkowców grupy B. 3.1. Czynniki wirulencji GBS. 4. Charakterystyka grup C i G. 4.1. Czynniki wirulencji GCS/GGS. 5. Charakterystyka grupy anginosus. 6. Podsumowanie

Abstract: Streptococcus is a highly diverse genus of gram positive bacteria. They can be divided into different groups based on their phenotypic properties. Usually criteria include hemolysis (α, β or γ) or type of surface carbohydrate (Lancefield antigen). Classification often includes phylogenetic groups (divisions) such as pyogenic, anginosus (milleri), mitis/oralis, salivarius and bovis. β-hemolytic streptococci are usually classified as pyogenic and anginosus groups, while others (with α-hemolysis) are commonly called viridans streptococci.
Among over 40 streptococcal species, several cause infections in humans and animals. For several species changes of host range and severity of infections were observed. Over the last four decades multiple virulence factors produced by pathogenic streptococci responsible for infection dynamics were identified and characterized.

1. Introduction. 2. Group A streptococci. 3. The characteristis of group B streptococci. 3.1. GBS virulence factors. 4. The characteristis of group C and G. 4.1. Virulence factors of GCS/GBS. 5. Characteristis anginosus group. 6. Summary

Autor: Postępy Mikrobiologii
No Comment
Czytaj dalej

Krętki Leptospira spp. – chorobotwórczość i diagnostyka zakażeń

Leptospira spp. spirochetes – pathogenicity and diagnosis of infections
B. Fiecek, S. Tylewska-Wierzbanowska
10 August 2017

1. Wstęp. 2. Charakterystyka rodzaju Leptospira. 3. Systematyka Leptospira spp. 4. Zakażenia Leptospira spp. 4.1. Czynniki chorobotwórcze bakterii z rodzaju Leptospira. 4.2. Leptospiroza – objawy i leczenie. 5. Odpowiedź immunologiczna gospodarza na zakażenie Leptospira spp. 5.1. Szczepionki. 6. Diagnostyka zakażeń wywoływanych przez Leptospira spp. 7. Epidemiologia leptospirozy. 8. Podsumowanie

Abstract: Leptospirosis is a zoonotic disease caused by spirochetes of the genus Leptospira. Humans are infected Leptospira spp. through contact with urine of carrier animals or contaminated surface water or soil. In humans, leptospirosis can have a wide range of manifestations such as: flu-like symptoms with mild hepatic and renal dysfunction or serious damage of the kidneys, liver, lungs, heart, brain and eyes, ending with the death of the patient. Factors increasing the risk of leptospiral infection include: water sports, fishing, hunting, rice plantation and a profession such as a butcher, a veterinarian, pigs farmer, sewer worker or military personnel. Leptospirosis has similar signs and symptoms to dengue, influenza, and rickettsial diseases. Leptospirosis is increasingly recognized as a public health problem. This disease is a cause of growing morbidity and mortality in both developed and developing countries.

1. Introduction. 2. Characteristics of Leptospira spp. 3. Systematics of Leptospira spp. 4. Leptospira spp. infections. 4.1. Pathogenic factors of the genus Leptospira. 4.2. Leptospirosis – symptoms and treatment. 5. Host immune responses to leptospiral infections. 5.1. Vaccines. 6. Diagnosis of infections caused by Leptospira spp. 7. The epidemiology of leptospirosis. 8. Summary

Autor: Postępy Mikrobiologii
No Comment
Czytaj dalej

Problematyka zakażeń okołowszczepowych

Infections associated with implantable biomaterials
R. Pokrowiecki, S. Tyski, M. Zaleska
10 August 2017

1. Wstęp. 2. Patogeneza zakażenia okołowszczepowego. 3. Klasyfikacja zakażeń okołowszczepowych. 4. Diagnostyka. 5. Profilaktyka zakażeń. 6. Leczenie zakażeń. 6. Podsumowanie

Abstract: Bacterial infections accompanying implanted medical devices create serious clinical problems. Using titanium implants may reduce the rate of there infections. Physicochemical properties of titanium allow using it as implantable biomaterial to maintain osseointegration, phenomenon described as “biological and functional connection of the implant with the living bone”. One of the most important factors which can affect osseointegration is bacterial colonization of the implant surface and development of Biomaterial Associated Infection (BAI). Impaired osseointegration can increase the risk of subsequent loosening due to micromotion. BAI’s in orthopaedics and maxillofacial surgery are serious complications, which ultimately lead to osteomyelitis with consequent devastating effects on bone and surrounding soft tissues. Implant associated infections are caused by microorganisms which adhere to the implant surface and then live clustered together in a highly hydrated extracellular matrix attached to the surface, known as bacterial biofilm. Simple debridement procedures with retention of prosthesis and chemotherapy with antimicrobial agents are the treatments not always effective against infections already established.

1. Introduction. 2. Pathogenesis of biomaterial associated infection. 3. Classification. 4. Diagnostics. 5. Prophylaxis. 6. Treatment. 6. Summary

Autor: Postępy Mikrobiologii
No Comment
Czytaj dalej

Mechanizmy oporności na antybiotyki i chemioterapeutyki pałeczek Stenotrophomonas maltophilia

Restistance mechanisms to antibiotics and chemotherapeutics in Stenotrophomonas maltophilia
K. Hankiewicz-Ziołkowska, E. Gospodarek
10 August 2017

1. Wstęp. 2. Antybiotyki beta-laktamowe. 3. Antybiotyki aminoglikozydowe. 4. Chinolony. 5. Kotrimoksazol. 6. Wielolekooporność

Abstract: Stenotrophomonas maltophilia are opportunistic bacteria which may manifest decreased resistannce to many antibiotics – beta-lactams, aminoglycosides, quinolones and co-trimoxazole. The mechanisms of resistance to antibiotics and chemoterapeutic are discussed.

1. Introduction. 2. Beta-lactams. 3. Aminoglycosides. 4. Quinolones. 5. Co-trimoxazole. 6. Multidrug resistance

Autor: Postępy Mikrobiologii
No Comment
Czytaj dalej
1 … 56 57 58 59 60 … 88

Current Issue

Current Issue

Advancements of Microbiology
Volume 63 (2024): Issue 3

Publisher

PTM

Publisher