In vitro efficacy of a 0.2% polyhexamethylene biguanide‐impregnated gauze dressing against pathogenic bacterial isolates found in horses

2021 ◽  
Author(s):  
Charlene V. Noll ◽  
Isabelle Kilcoyne ◽  
Jorge E. Nieto ◽  
Timothy Thio ◽  
Barbara A. Byrne
Keyword(s):  
Bacterial Isolates ◽  
Polyhexamethylene Biguanide ◽  
Gauze Dressing

In Vitro Efficacy of a Polyhexamethylene Biguanide-Impregnated Gauze Dressing Against Bacteria Found in Veterinary Patients

2004 ◽  
Vol 33 (4) ◽  
pp. 404-411 ◽  
Author(s):  
William R. Lee ◽  
Karen M. Tobias ◽  
David A. Bemis ◽  
Barton W. Rohrbach
Keyword(s):  
Polyhexamethylene Biguanide ◽  
Gauze Dressing

scholarly journals In Vitro Antibacterial Activity of Teixobactin Derivatives on Clinically Relevant Bacterial Isolates

2018 ◽  
Vol 9 ◽  
Author(s):  
Estelle J. Ramchuran ◽  
Anou M. Somboro ◽  
Shimaa A. H. Abdel Monaim ◽  
Daniel G. Amoako ◽  
Raveen Parboosing ◽  
...  
Keyword(s):  
Antibacterial Activity ◽  
Bacterial Isolates ◽  
In Vitro Antibacterial Activity

scholarly journals BL-S786, a new parenteral cephalosporin. I. A collaborative in vitro susceptibility comparison to cephalothin against 5,762 clinical bacterial isolates.

1977 ◽  
Vol 30 (7) ◽  
pp. 576-582 ◽  
Author(s):  
RONALD N. JONES ◽  
PETER C. FUCHS ◽  
THOMAS L. GAVAN ◽  
E. HUGH GERLACH ◽  
ARTHUR BARRY ◽  
...  
Keyword(s):  
Bacterial Isolates ◽  
In Vitro Susceptibility

The ability of rhizosphere bacteria isolated from nematode host and non-host plants to influence the hatch in vitro of the two potato cyst nematode species, Globodera rostochiensis and G. pallida

Nematology ◽  
2004 ◽  
Vol 6 (3) ◽  
pp. 375-387 ◽  
Author(s):  
N. Aileen Ryan ◽  
Peter Jones
Keyword(s):  
Sugar Beet ◽  
Host Plant ◽  
Host Plants ◽  
Nematode Species ◽  
Cyst Nematode ◽  
Potato Cyst Nematode ◽  
Globodera Pallida ◽  
Bacterial Isolates ◽  
Bacillus Spp

AbstractSeventy bacteria, isolated from the rhizosphere of the potato cyst nematode (PCN) host plant, potato, were cultured in the presence and absence of potato root leachate (PRL) and the resultant culture filtrates were analysed for their ability to affect the hatch in vitro of the two PCN species. Of the isolates tested, nine had a significant effect on PCN hatch. Six affected Globodera pallida hatch and three affected G. rostochiensis hatch. Five of the isolates significantly increased hatch only when cultured in the presence of PRL. Three of the isolates decreased PCN hatch significantly in PRL. Only one isolate increased hatch significantly in the absence of PRL. No isolate affected the hatch of both species. Six of the nine isolates that significantly affected PCN hatch had been pre-selected by culturing on PRL. Bacterial isolates from PCN non-hosts (14 from wheat, 17 from sugar beet) were also tested for hatching activity. The principal effect of the hatch-active isolates from the PCN non-host plants was to increase PCN hatch in the presence of PRL. In contrast to the host bacteria results, the isolates from non-host plants affected only G. rostochiensis hatch (three wheat isolates and four sugar beet isolates significantly increased G. rostochiensis hatch); no such isolate affected G. pallida hatch significantly in the presence of PRL. Ten isolates (32%) from non-host plants had the ability to increase significantly the hatch of PCN in the absence of PRL (eight of these affected G. rostochiensis hatch and four affected G. pallida hatch), compared to only one bacterial isolate (1%) from a host plant. The majority of the isolates from non-hosts produced PCN species-specific effects, as with the bacteria isolated from potatoes, although two wheat isolates increased the hatch of both species significantly in the absence of PRL. Of 20 hatch-active bacterial isolates (from all three plants) identified, 70% were Bacillus spp. Other genera identified were Arthrobacter , Acinetobacter and Staphylococcus .

scholarly journals In vitro activity of U-63196E, a new cephalosporin, against clinical bacterial isolates.

1984 ◽  
Vol 25 (4) ◽  
pp. 401-404 ◽  
Author(s):  
G M Eliopoulos ◽  
A Gardella ◽  
P DeGirolami ◽  
R C Moellering
Keyword(s):  
Vitro Activity ◽  
In Vitro Activity ◽  
Bacterial Isolates

scholarly journals Features of Lactobacillus sakei isolated from Italian sausages: focus on strains from Ventricina del Vastese

2015 ◽  
Vol 4 (4) ◽  
Author(s):  
Carmela Amadoro ◽  
Franca Rossi ◽  
Michele Piccirilli ◽  
Giampaolo Colavita
Keyword(s):  
Meat Products ◽  
Lactobacillus Sakei ◽  
Bacterial Isolates ◽  
Chain Reaction ◽  
Spontaneous Fermentation ◽  
Meat Extract ◽  
Fermented Sausages ◽  
Polymerase Chain ◽  
High Diversity

In this study bacterial isolates from <em>Ventricina del Vastese</em> sausage, previously identified as <em>Lactobacillus (L.) sakei</em>, were characterised genotypically, physiologically and on the basis of some technologically relevant traits. A total of 70 <em>L. sakei</em> isolates from sausages manufactured with spontaneous fermentation in the same producing plant were taken into account. Six genotypic groups were distinguished on the basis of Rep-polymerase chain reaction with the GTG<sub>5</sub> primer, some of which were found only in the sausages ripened at temperatures lower than 10°C for the first two months and lower than 16°C for the remaining three months, according to the traditional ripening process. Six strains were selected as representative of the genotypic profiles and further characterised. A high diversity in their fermentation profiles was observed, and different groups were separated on the basis of growth and acidifying capacity in meat extract. None of the strains produced histamine or tyramine <em>in vitro</em>. One strain was able to slightly inhibit <em>Listeria (L.) monocytogenes</em> and <em>L. innocua</em> and all six strains were able to slightly inhibit <em>Enterobacteriaceae</em> isolated from <em>Ventricina del Vastese</em> sausages <em>in vitro</em>. Results showed that most <em>L. sakei</em> strains can have a role in improving the safety of low acidity fermented sausages, even though a limited acidifying capacity was observed in a meat-like substrate, and that <em>L. sakei</em> strains able to produce biogenic amines are unlikely to occur in spontaneously fermented meat products.

scholarly journals Multifarious Indigenous Diazotrophic Rhizobacteria of Rice (Oryza sativa L.) Rhizosphere and Their Effect on Plant Growth Promotion

2022 ◽  
Vol 8 ◽  
Author(s):  
Mohammad Imran Mir ◽  
Bee Hameeda ◽  
Humera Quadriya ◽  
B. Kiran Kumar ◽  
Noshin Ilyas ◽  
...  
Keyword(s):  
Plant Growth ◽  
Phosphate Solubilization ◽  
Nitrogenase Activity ◽  
Hydrolytic Enzymes ◽  
Seed Vigor ◽  
Bacterial Isolates ◽  
Diazotrophic Bacteria ◽  
Pgp Traits ◽  
Rice Plants

A diverse group of rhizobacteria persists in the rhizospheric soil, on the surface of roots, or in association with rice plants. These bacteria colonize plant root systems, enhance plant growth and crop yield. Indigenous rhizobacteria are known to promote soil health, grain production quality and serve as sustainable bioinoculant. The present study was aimed to isolate, identify and characterize indigenous plant growth promoting (PGP) diazotrophic bacteria associated with the rhizosphere of rice fields from different areas of Jammu and Kashmir, India. A total of 15 bacteria were isolated and evaluated for various PGP traits, antagonistic activity against phytopathogens, production of hydrolytic enzymes and biofilm formation under in-vitro conditions. The majority of the isolated bacteria were Gram-negative. Out of 15 bacterial isolates, nine isolates produced IAA (12.24 ± 2.86 to 250.3 ± 1.15 μg/ml), 6 isolates exhibited phosphate solubilization activity (36.69 ± 1.63 to 312.4 ± 1.15 μg/ml), 7 isolates exhibited rock phosphate solubilization while 5 isolates solubilized zinc (10–18 mm), 7 isolates showed siderophore production, 8 isolates exhibited HCN production, 6 isolates exhibited aminocyclopropane-1-carboxylate (ACC) deaminase activity, 13 isolates exhibited cellulase activity, nine isolates exhibited amylase and lipase activity and six isolates exhibited chitinase activity. In addition, 5 isolates showed amplification with the nifH gene and showed a significant amount of nitrogenase activity in a range of 0.127–4.39 μmol C2H4/mg protein/h. Five isolates viz., IHK-1, IHK-3, IHK-13, IHK-15 and IHK-25 exhibited most PGP attributes and successfully limited the mycelial growth of Rhizoctonia solani and Fusarium oxysporum in-vitro. All the five bacterial isolates were identified based on morphological, biochemical and 16S rDNA gene sequencing study, as Stenotrophomonas maltophilia, Enterobacter sp., Bacillus sp., Ochrobactrum haematophilum and Pseudomonas aeruginosa. Rice plants developed from seeds inoculated with these PGP strains individually had considerably higher germination percentage, seed vigor index and total dry biomass when compared to control. These findings strongly imply that the PGP diazotrophic bacteria identified in this work could be employed as plant growth stimulators in rice.

scholarly journals ASAI KEMAMPUAN BAKTERI ENDOFIT DARI KACANG TANAH DALAM MENGHAMBAT PERTUMBUHAN Sclerotium sp. PADA KECAMBAH KACANG TANAH

2020 ◽  
Vol 14 (2) ◽  
pp. 178-186
Author(s):  
Lisa Novita Arios ◽  
Dwi Suryanto . ◽  
Kiki Nurtjahja . ◽  
Erman Munir .
Keyword(s):  
Endophytic Bacteria ◽  
Culture Method ◽  
Dry Weight ◽  
Dual Culture ◽  
Seedling Height ◽  
Bacterial Isolates ◽  
Peanut Seed ◽  
Number Of Leaves

Assay on ability of endophytic bacteria isolated from peanut to inhibit Sclerotium sp. growth in peanut seedlings.   A study on assay of ability of endophytic bacteria to inhibit Sclerotium sp. in peanut seedling has been done. The bacteria were isolated from peanut healthy plants, while Sclerotium sp. was isolated from infected peanaut plant. Antagonistic assay was conducted by dual culture method.  In vivo assay of inhibiting Sclerotium sp. was conducted by dipping peanut seed in bacterial solution, and planting the seed in soil:compost (3:1) growing media. Six endophytic bacterial isolates showed to inhibit the growth of Sclerotium sp. in vitro. LN1 seemed to inhibit more of Sclerotium sp., while LN5 showed to inhibit less. Two potential isolates LN1 of gram-negative and LN2 of gram-positive using for further study showed to decrease more of dumping off. It also seemed that the isolates increased the seedling height, number of leaves, and dry weight.

scholarly journals Exploitation of endophytic Pseudomonas sp. for plant growth promotion and colonization in rice

2017 ◽  
Vol 9 (3) ◽  
pp. 1310-1316
Author(s):  
Gurjot Kaur ◽  
Poonam Sharma ◽  
Deepika Chhabra ◽  
Kailash Chand ◽  
Gurjit Singh Mangat
Keyword(s):  
Plant Growth ◽  
Plant Growth Promotion ◽  
Growth Promotion ◽  
Acc Deaminase ◽  
Pseudomonas Sp ◽  
Bacterial Isolates ◽  
Pgp Traits ◽  
P Solubilization ◽  
Fluorescent Pigment

The present investigation was carried out to exploit bacterial endophytes associated with root and leaf tissue of rice plant for plant growth promotion (PGP) and colonization study in vitro. Total 10 endophytic bacterial isolates (Pseudomonas sp.) were evaluate for PGP traits like P solubilization, production of Indole acetic acid (IAA), siderophore, ACC deaminase, protease, cellulase, fluorescent pigment, urease and denitrification activity. Out of 10 endophytic bacteria 30 %, 60 %, 20 %, 70 %, 10 % and 10 % were positive for siderophore, protease, cellulase, fluorescent pigment, urease and denitrification respectively. Maximum IAA production was recorded with isolate LRBLE7 (18.8 μgml-1) followed by LRBRE4 (16.0 μgml-1) and maximum P-solubilization was recorded with isolate LRBRE4 (5.8 mg 100 ml-1) followed by LRBLE7 (4.4 mg 100 ml-1). ACC deaminase production was recorded with isolate LRBLE6 (O.D=0.352 nm) followed by LRBRE5 (O.D=0.324nm). Three potential isolates (LRBRE4, LRBRE6 and LRBLE7) were selected on the basis of multiple PGP traits and were subjected to colonization study of rice seedling in vitro. Potential bacterial isolates can be exploited for improving growth and productivity in rice under sustainable management system.

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