Effects of a Plant Growth-Promoting Rhizobacterium (Pseudomonas putida GR12-2) on the Early Growth of Canola Seedlings

1997 ◽  
pp. 253-257 ◽  
Author(s):  
Bernard R. Glick ◽  
Sibdas Ghosh ◽  
Changping Liu ◽  
Erwin B. Dumbroff
Keyword(s):  
Plant Growth ◽  
Pseudomonas Putida ◽  
Early Growth ◽  
Plant Growth Promoting ◽  
Growth Promoting

Proteome reference map for the plant growth-promoting bacterium Pseudomonas putida UW4

PROTEOMICS ◽  
2009 ◽  
Vol 9 (17) ◽  
pp. 4271-4274 ◽  
Author(s):  
Zhenyu Cheng ◽  
Owen Z. Woody ◽  
Jiming Song ◽  
Bernard R. Glick ◽  
Brendan J. McConkey
Keyword(s):  
Plant Growth ◽  
Pseudomonas Putida ◽  
Plant Growth Promoting ◽  
Reference Map ◽  
Growth Promoting

A Siderophore Peptide Synthetase Gene from Plant-growth-promoting Pseudomonas putida WCS358

2001 ◽  
Vol 24 (3) ◽  
pp. 321-330 ◽  
Author(s):  
Giulia Devescovi ◽  
Claudio Aguilar ◽  
Maria B. Majolini ◽  
Joey Marugg ◽  
Peter Weisbeek ◽  
...  
Keyword(s):  
Plant Growth ◽  
Pseudomonas Putida ◽  
Peptide Synthetase ◽  
Plant Growth Promoting ◽  
Growth Promoting

Low temperature growth, freezing survival, and production of antifreeze protein by the plant growth promoting rhizobacterium Pseudomonas putida GR12-2

1995 ◽  
Vol 41 (9) ◽  
pp. 776-784 ◽  
Author(s):  
Xiuying Sun ◽  
Marilyn Griffith ◽  
J. J. Pasternak ◽  
Bernard R. Glick
Keyword(s):  
Plant Growth ◽  
Pseudomonas Putida ◽  
Growth Medium ◽  
Polyacrylamide Gel Electrophoresis ◽  
Plant Growth Promoting Rhizobacteria ◽  
Antifreeze Protein ◽  
High Arctic ◽  
Major Protein ◽  
Plant Growth Promoting ◽  
Growth Promoting

The plant growth promoting rhizobacterium Pseudomonas putida GR12-2 was originally isolated from the rhizosphere of plants growing in the Canadian High Arctic. Here we report that this bacterium was able to grow and promote root elongation of both spring and winter canola at 5 °C, a temperature at which only a relatively small number of bacteria are able to proliferate and function. In addition, the bacterium survived exposure to freezing temperatures, i.e., −20 and −50 °C. In an effort to determine the mechanistic basis for this behaviour, it was discovered that following growth at 5 °C, P. putida GR12-2 synthesized and secreted to the growth medium a protein with antifreeze activity. Analysis of the spent growth medium, following concentration by ultrafiltration, by SDS-polyacrylamide gel electrophoresis revealed the presence of one major protein with a molecular mass of approximately 32–34 kDa and a number of minor proteins. However, at this point it is not known which of these proteins contains the antifreeze activity.Key words: plant growth promoting rhizobacteria, PGPR, bacterial fertilizer, soil bacteria, antifreeze protein.

scholarly journals Effect of plant growth promoting bacteria on early growth of wheat cultivars

2019 ◽  
Vol 62 (3) ◽  
pp. 247-250
Author(s):  
Sang Gyu Lee ◽  
Hyeri Lee ◽  
Jimin Lee ◽  
Byung Cheon Lee ◽  
Hojoung Lee ◽  
...  
Keyword(s):  
Plant Growth ◽  
Early Growth ◽  
Plant Growth Promoting Bacteria ◽  
Wheat Cultivars ◽  
Plant Growth Promoting ◽  
Growth Promoting

scholarly journals Early Growth Stage Root-Associated Endophytes Isolated From Ulex Europaeus L. (Fabaceae) Colonizing Rural Areas in South-Central Chile

2021 ◽  
Author(s):  
Hector Herrera ◽  
Alejandra Fuentes ◽  
Javier Ortiz ◽  
Javiera Soto ◽  
Rafael Vorges Da-Silva Valadares ◽  
...  
Keyword(s):  
Plant Growth ◽  
Growth Stage ◽  
Early Growth ◽  
Central Chile ◽  
Early Growth Stage ◽  
Ulex Europaeus ◽  
South Central ◽  
Plant Growth Promoting ◽  
Growth Promoting ◽  
Plant Growth Promoting Traits

Abstract Background and aimsUlex europaeus L. (Fabaceae), commonly known as gorse, is an invasive woody shrub that easily grows in several locations across the world. However, little is known about the interactions of this invasive species with soil microorganisms and how these microbes can promote reaching rapid grow-rates at early stages of development. We aim at characterizing the endophytic fungal and bacterial microbiota associated with roots of early growth stage U. europaeus colonizing native ecosystems in south-central Chile.MethodsRoot-associated microorganisms were isolated and identified using standard molecular techniques. Furthermore, plant growth-promoting traits were studied and biocontrol activity was assessed to characterize the early growth stage root-associated taxa. ResultsFour endophytic fungi belonging to Sordariomycetes and twelve bacteria assigned to Proteobacteria and Actinobacteria were identified as the principal early growth stage root-endophytic taxa. Plant growth-promoting traits were detected in several isolates such as Fusarium acuminatum and Rhodococcus sp. Besides, some of the isolates such as Rhodococcus sp. and Purpureocillium lilacinum showed biocontrol potential against phytopathogenic fungi. ConclusionsOur results demonstrate that early growth stage root endophytic taxa associated with U. europaeus have beneficial plant growth-promoting traits that can contribute with the rapid growth-rates of the shrub. The interaction with a set of beneficial microorganisms is an additional mechanism to explain the ability of U. europaeus for colonizing in various ecosystems.

Contrasting colonization and plant growth promoting capacity between wild type and a gfp-derative of the endophyte Pseudomonas putida W619 in hybrid poplar

2011 ◽  
Vol 356 (1-2) ◽  
pp. 217-230 ◽  
Author(s):  
Nele Weyens ◽  
Jana Boulet ◽  
Dirk Adriaensen ◽  
Jean-Pierre Timmermans ◽  
Els Prinsen ◽  
...  
Keyword(s):  
Plant Growth ◽  
Pseudomonas Putida ◽  
Hybrid Poplar ◽  
Wild Type ◽  
Plant Growth Promoting ◽  
Growth Promoting

Succinic and lactic acids as plant growth promoting compounds produced by rhizospheric Pseudomonas putida

1993 ◽  
Vol 39 (12) ◽  
pp. 1150-1154 ◽  
Author(s):  
Masami Yoshikawa ◽  
Nobuhiro Hirai ◽  
Kohji Wakabayashi ◽  
Haruyuki Sugizaki ◽  
Hajime Iwamura
Keyword(s):  
Plant Growth ◽  
Pseudomonas Putida ◽  
Culture Filtrate ◽  
Rhizosphere Soil ◽  
Growth Promotion ◽  
Crown Rot ◽  
Asparagus Officinalis ◽  
Plant Growth Promoting ◽  
Growth Promoting ◽  
Lactic Acids

In greenhouse trials, root growth of Asparagus officinalis L. increased up to 30% when roots of 3-week-old seedlings were dipped in the culture filtrate of Pseudomonas putida RSA9, a strain isolated from rhizosphere soil of asparagus and antagonistic to the crown rot pathogen Fusarium moniliforme. The culture filtrate was extracted with ethyl acetate at pH 3, and the extracts were fractionated on a column of octadesylsilica gel. The active fraction was found to be a 45:55 mixture of succinic and lactic acids. Root mass increased 40% when the roots of the seedlings were treated with a 1:1 mixture of the acids at 10 ppm. The results provide an explanation for the plant growth promoting effects of some rhizobacteria; the bacteria may secrete organic acids, such as succinic and lactic acids, and these acids may increase plant growth under conditions in which the populations of pathogens are reduced.Key words: succinic acid, lactic acid, Pseudomonas putida, plant growth promotion, rhizobacteria, PGPR.

Sign in / Sign up

Export Citation Format

Share Document