نتایج جستجو برای: p fluorescens

تعداد نتایج: 1272167  

2013
Chandrakala Chandrashekar

Potato ranks fourth as the most important food crop in the world. The crop is known to suffer from many diseases among which late blight is more devastating. Therefore, culture filtrates of bio-control agents, (Trichoderma virens, Trichoderma viride, Paecilomyces lilacinus and Pseudomonas fluorescens) were tested for their effectiveness on the spore germination and infection in-vitro, as fungic...

2016
Julie E Hernández-Salmerón Rocio Hernández-León Ma Del Carmen Orozco-Mosqueda Eduardo Valencia-Cantero Gabriel Moreno-Hagelsieb Gustavo Santoyo

The Pseudomonas fluorescens strain UM270 was isolated form the rhizosphere of wild Medicago spp. A previous work has shown that this pseudomonad isolate was able to produce diverse diffusible and volatile compounds involved in plant protection and growth promotion. Here, we present the draft genome sequence of the rhizobacterium P. fluorescens strain UM270. The sequence covers 6,047,974 bp of a...

Journal: :Applied and environmental microbiology 1986
R L Fuchs S A McPherson D J Drahos

Serratia marcescens, a chitinase-producing microorganism, was shown to produce five unique chitinolytic proteins with subunit molecular masses of 21, 36, 48, 52, and 57 kilodaltons. A cosmid library of S. marcescens DNA was constructed in the broad-host-range cosmid pLAFR1 and screened in Escherichia coli for clones capable of degrading chitin. A total of four independent clones (22- to 27-kilo...

Journal: :Food microbiology 2006
Elena del Río Rosa Capita Miguel Prieto Carlos Alonso-Calleja

This study was undertaken to determine whether trisodium phosphate decontamination of poultry could give a competitive advantage to pathogens and increase microbiological risk to consumers. Chicken legs were co-inoculated with similar concentrations of pathogenic (Salmonella Enteritidis or Listeria monocytogenes) and spoilage (Pseudomonas fluorescens or Brochothrix thermosphacta) bacteria. Samp...

2015
Norma Elena Rojas-Ruiz Estibaliz Sansinenea-Royano Maria Lilia Cedillo-Ramirez Rodolfo Marsch-Moreno Patricia Sanchez-Alonso Candelario Vazquez-Cruz

BACKGROUND Bacillus thuringiensis is the most successful biological control agent, however, studies so far have shown that B. thuringiensis is very sensitive to environmental factors such as soil moisture and pH. Ultraviolet light from the sun had been considered as the main limiting factor for its persistence in soil and it has recently been shown that the antagonism exerted by other native so...

Journal: :Biofouling 2011
Lucia C Simões Madalena Lemos Paula Araújo Ana Margarida Pereira Manuel Simões

Glutaraldehyde (GLUT) was evaluated for control of single and dual species biofilms of Bacillus cereus and Pseudomonas fluorescens on stainless steel surfaces using a chemostat system. The biofilms were characterized in terms of mass, cell density, total and matrix proteins and polysaccharides. The control action of GLUT was assessed in terms of inactivation and removal of biofilm. Post-biocide...

2012
Guanpeng Gao Danhan Yin Shengju Chen Fei Xia Jie Yang Qing Li Wei Wang

Fungi and fungal community play important roles in the soil ecosystem, and the diversity of fungal community could act as natural antagonists of various plant pathogens. Biological control is a promising method to protect plants as chemical pesticides may cause environment pollution. Pseudomonas fluorescens 2P24 had strong inhibitory on Rastonia solanacearum, Fusarium oxysporum and Rhizoctonia ...

Journal: :Journal of bacteriology 1998
C A Whistler N A Corbell A Sarniguet W Ream J E Loper

Three global regulators are known to control antibiotic production by Pseudomonas fluorescens. A two-component regulatory system comprised of the sensor kinase GacS (previously called ApdA or LemA) and GacA, a member of the FixJ family of response regulators, is required for antibiotic production. A mutation in rpoS, which encodes the stationary-phase sigma factor sigmaS, differentially affects...

2012
Yeonwoo Park Yuseok Moon Jungmin Ryoo Nayeon Kim Hyounghoon Cho Jung Hoon Ahn

BACKGROUND TliA is a thermostable lipase secreted by the type 1 secretion system (T1SS) of Pseudomonas fluorescens. The secretion is promoted by its secretion/chaperone domain located near the C-terminus, which is composed mainly of four Repeat-in-Toxin (RTX) repeats. In order to identify the minimal region of TliA responsible for its secretion, five different copies of the secretion/chaperone ...

Journal: :Phytopathology 2009
Virginia O Stockwell Kevin Hockett Joyce E Loper

Bacteria living epiphytically on aerial plant surfaces encounter severe and rapidly fluctuating environmental conditions, and their capacity to withstand environmental stress contributes to epiphytic fitness. The stationary phase sigma factor RpoS is a key determinant in stress response of gram-negative bacteria, including Pseudomonas spp. This study focused on the role of RpoS in stress respon...

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