scholarly journals ДОСЛІДЖЕННЯ АНТИМІКРОБНОЇ АКТИВНОСТІ ВОДНО-ЕТАНОЛЬНИХ ВИТЯГІВ іЗ ТРАВИ ГОРЛЯНКИ ПОВЗУЧОЇ (AJUGA REPTANS L.)

2020 ◽  
pp. 63-72
Author(s):  
S. V. Maliuvanchuk ◽  
R. V. Kutsyk ◽  
A. R. Grytsyk
Keyword(s):  
Ajuga Reptans ◽  
Vitek 2

Мета роботи. Визначення мікробіологічної чистоти трави горлянки повзучої та антимікробної активності водно-етанольних витягів трави горлянки повзучої відносно клінічних штамів умовно-патогенних бактерій та дріжджоподібних грибів. Матеріали і методи. Об’єктом дослідження була антимікробна активність водно-етанольних витягів із трави горлянки повзучої, заготовленої в період масового цвітіння. Дослідження антимікробної активності екстрактів виконано на клінічних ізолятах антибіотикочутливих і антибіотикорезистентних мікроорганізмів. Бактеріальні культури ідентифікували за допомогою біохімічних мікротестів «STAPHYtest 16», «ENTEROtest 24», «NEFERMENTtest 24» (Lachema, Чехія), а також із врахуванням комплексу морфологічних і культуральних властивостей згідно з рекомендаціями 9-го видання «Визначника бактерій Берджі». Культури дріжджоподібних грибів ідентифікували на основі 40 біохімічних тестів за допомогою системи VITEK 2 з використанням VITEK 2 YST ID card (Biomerieux, Франція). Антимікробну дію витягів вивчали мікрометодом дифузії в агар. Результати й обговорення. Проведено скринінг протимікробних властивостей для водно-етанольних витягів (40 %, 50 %, 70 %, 90 % об/об) трави горлянки повзучої та досліджено мікробіологічну чистоту рослинних витягів на 25 тест-штамах мікроорганізмів. Висновки. Враховуючи результати досліджень, вважаємо перспективним  детальніше вивчення витягів із трави горлянки повзучої на можливу антимікробну дію та проведення мікробіологічних досліджень для розширення асортименту антимікробних лікарських рослинних засобів.

Investigate of the Ability of Cronobacter sakazakii Isolated from Clinical Samples of Children Under Two Years to Induce Swimming, Swarming and Biofilm

2018 ◽  
pp. 123
Author(s):  
Luma Abdal Hady Zwein ◽  
Tharieyt Abdulrahman Motlag ◽  
Mohamed Mousa
Keyword(s):  
Cerebrospinal Fluid ◽  
Congo Red ◽  
Biofilm Formation ◽  
Microtiter Plate ◽  
Clinical Samples ◽  
Cronobacter Sakazakii ◽  
Yellow Color ◽  
Golden Yellow ◽  
Vitek 2 ◽  
Biochemical Examination

      The study included 200 samples were collected   from   children  under two   years included (50 samples from each of Cerebrospinal fluid, Blood, Stool and Urine) from, Central Children Hospital and Children's Protections Educational Hospital. Isolates bacterial were obtained cultural, microscopic and biochemical examination and diagnosed to the species by using vitek2 system. The results showed there were contamination in 6.5% of clinical samples. The diagnosed colonies which gave pink color on the MacConkey agar , golden yellow color on the Trypton Soy agar and green color on the Birillent Enterobacter sakazakii agar and gave  a probability of 99% in the vitek 2 and were identified as Cronobacter sakazakii. The identification revealed of thirteen isolates: 6(46.16%) isolated from Cerebrospinal fluid samples, 7(53.84%) isolated from blood samples and not isolated bacteria from stool and urine samples. The results of the investigation of some virulence factors showed that all bacteria isolates were able to swimming with a diameter ranging (1-9 mm) and swarming with a diameter ranging (1-40 mm) and their  ability to biofilm formation  by using three methods. The results show the ability  of  isolates to form biofilm by using  Congo red media  methods where it is 12 (92.30 %) out of 13 isolated bacteria belonging to C. sakazakii  able to form biofilm on the Congo red media  which is 3 (23.07%) were  strong production  biofilm ,   8 (61.53%)  were intermediate  production  biofilm and  1 (7.69% ) were weak  biofilm formation , while the 1 (7.69%)  unable to form biofilm.  Tubes method were all isolates were able to form biofilm, it were found that 3 (23.07%)  isolates strong, and 8 (61.53%) intermediate  and 2( 15.38%)  weak biofilm formation. Microtiter plate method  gave 5 (38.46 %) isolates strong, 6 (46.15%) intermediate and 1 (7.69%) weak biofilm formation.  

Winter Survival Evaluation of 172 Groundcovers in Northern Illinois

HortScience ◽  
1998 ◽  
Vol 33 (3) ◽  
pp. 453d-453
Author(s):  
A.M. Shirazi ◽  
E.A. HedBorn ◽  
S.A. Mehaffey ◽  
A.S. Merritt
Keyword(s):  
Cold Resistance ◽  
Winter Hardiness ◽  
Winter Survival ◽  
Severe Damage ◽  
Hedera Helix ◽  
Cold Temperatures ◽  
Ajuga Reptans ◽  
Significant Damage ◽  
Cold Damage ◽  
Euonymus Fortunei

The winter hardiness of many groundcover cultivars in northern Illinois is not well-known. This study was designed to evaluate the survival of 172 plants used in the groundcover path at The Morton Arboretum. Once a month, from Sept.1997 to Jan. 1998, the plants chosen for this study were visually evaluated and their vitality rated on a scale of 1 to 5 (1 = alive, 5 = dead). All nine cultivars of Euonymus fortunei remained virtually unchanged throughout the study period. Among six cultivars of Hedera helix, only `Gold Heart' showed minor damage in November. Nine Heuchera were evaluated and all exhibited excellent resistance to cold temperatures. While all the Pulmonarias studied showed some cold damage by November, `Bielefeld Pink', `Little Blue', `Roy Davidson', Pulmonaria longifolia var. cevennensis, and Pulmonaria officinalis `Sissinghurst White' fared the best for the longest period of time. Five cultivars of Pachysandra terminalis were included in this study. None had significant damage until November, and then only rated a “2.” Of the eight Ajuga evaluated, Ajuga pyramidalis `Metallica Crispa', and Ajuga reptans `Braunherz', `Catlin's Giant', and `Gaiety', exhibited the best cold resistance. Four Polygonums varied widely in their response to cold temperatures, but all showed signs of severe damage in November. Polygonum `Border Jewel' exhibited the best tolerance, rating a “1” in October, but in November it was given a rating of “4.” Their recovery in spring will be compared.

scholarly journals Evaluation of the Performance of Direct Susceptibility Test by VITEK-2 from Positively Flagged Blood Culture Broth for Gram-Negative Bacilli

2021 ◽  
Author(s):  
Kavipriya D. ◽  
Suman Susan Prakash ◽  
Sarumathi Dhandapani ◽  
Deepashree Rajshekar ◽  
Apurba Sankar Sastry
Keyword(s):  
Blood Culture ◽  
Susceptibility Testing ◽  
Blood Stream Infection ◽  
Tertiary Care ◽  
Reference Method ◽  
Culture Broth ◽  
Timely Initiation ◽  
Gram Negative ◽  
Mortality And Morbidity ◽  
Vitek 2

Abstract Background Timely initiation of antimicrobial therapy in patients with blood stream infection is absolutely necessary to reduce mortality and morbidity. Most clinical microbiology laboratories use conventional methods for identification and antimicrobial susceptibility testing (AST) that involve biochemical methods for identification followed by AST by disk diffusion. The aim of the current study is to assess the various errors associated with direct susceptibility testing done from blood culture broth using automated AST system-Vitek-2 compact compared with the reference method of AST done from bacterial colonies. Materials and Methods The study was conducted in a tertiary care public sector 2,200-bedded hospital in South India for a period of 6 months. The study involved positively flagged blood culture bottles that yielded single morphotype of Gram-negative organism by Gram stain. A total of 120 bacterial isolates were collected that consisted of consecutively obtained first 60 isolates of Enterobacteriaceae family (30 Escherichia coli and 30 Klebsiella pneumoniae) and consecutively obtained first 60 nonfermenters (30 Pseudomonas aeruginosa and 30 Acinetobacter baumannii). Vitek-2 AST was done from these 120 blood culture broth, following the protocol by Biomerieux, and results were obtained. Then, Vitek-2 was done from colonies (reference method) using appropriate panel for Enterobacteriaceae and nonfermenters, and results were obtained. Both the results were compared. Results Nonfermenters showed a better categorical agreement of 97.6%, as compared to Enterobacteriaceae, which showed 97%. Among Enterobacteriaceae, both E. coli and K. pneumoniae showed categorical agreement of 97% each. Conclusion The procedure of AST directly from blood culture broth represents a simple and effective technique that can reduce the turnaround time by 24 hours, which in turn benefits the clinician in appropriate utilization of antimicrobials for better patient care.

scholarly journals Comparison of Polymyxin B, Tigecycline, Cefepime, and Meropenem MICs for KPC-Producing Klebsiella pneumoniae by Broth Microdilution, Vitek 2, and Etest

2013 ◽  
Vol 51 (7) ◽  
pp. 2472-2472
Author(s):  
A. Lat ◽  
S. A. Clock ◽  
F. Wu ◽  
S. Whittier ◽  
P. Della-Latta ◽  
...  
Keyword(s):  
Klebsiella Pneumoniae ◽  
Polymyxin B ◽  
Broth Microdilution ◽  
Vitek 2

Comparison of the VITEK 2 antifungal susceptibility system with Etest using clinical isolates of Candida species

2017 ◽  
Vol 34 (3) ◽  
pp. 171-174 ◽  
Author(s):  
Wadha Alfouzan ◽  
Tahani Al-Enezi ◽  
Ebteehal AlRoomi ◽  
Vayalil Sandhya ◽  
Rachel Chandy ◽  
...  
Keyword(s):  
Candida Species ◽  
Antifungal Susceptibility ◽  
Clinical Isolates ◽  
Vitek 2

Identification of clinical Pasteurella isolates by MALDI-TOF — a comparison with VITEK 2 and conventional microbiological methods

2013 ◽  
Vol 77 (2) ◽  
pp. 96-98 ◽  
Author(s):  
Salah Zangenah ◽  
Gülay Güleryüz ◽  
Stina Boräng ◽  
Måns Ullberg ◽  
Peter Bergman ◽  
...  
Keyword(s):  
Maldi Tof ◽  
Microbiological Methods ◽  
Vitek 2
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