Rhizobacteria: Influence of cultivar and soil type on plant growth and yield of potato

Howie, William J.; Echandi, E.

doi:10.1016/0038-0717(83)90091-3

Cited by 53 publications

(15 citation statements)

References 18 publications

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“…Pseudomonas fluorescens has been extensively studied for its ability to stimulate the growth of plants (Howie and Echandi, 1983;Kloepper et al, 1988;Kurek and Jaroszuk-S´cisel, 2003) and to reduce the development of various plant pathogens (Paulitz et al, 1992; Ramamoorthy et al, 2002a). Numerous studies have demonstrated the potential of different strains of P. fluorescens as biocontrol agents of different pathogens including Fusarium sambucinum (Schisler et al, 2000), Pythium sp.…”

Section: Discussionmentioning

confidence: 98%

Antagonist Microorganisms with the Ability to Control Pythium Damping-off of Tomato Seeds in Rockwool

et al. 2005

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A total of 237 microorganisms were isolated from five different greenhouse tomato growing media. Of those, 40 microorganisms reduced the in vitro mycelial growth of both Pythium aphanidermatum and Pythium ultimum. The ability of these microorganisms to control damping-off was then tested in rockwool. As a result, Pseudomonas corrugata strains 1 and 3, Pseudomonas fluorescens subgroup F and G strains 1, 2, 3, 4 and 5, Pseudomonas marginalis, Pseudomonas putida subgroup B strain 1, Pseudomonas syringae strain 1 and Pseudomonas viridiflava significantly reduced damping-off caused by P. ultimum or P. aphanidermatum. Pseudomonas marginalis was the only microorganism that significantly reduced damping-off caused by both pathogens.

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Section: Discussionmentioning

confidence: 98%

Antagonist Microorganisms with the Ability to Control Pythium Damping-off of Tomato Seeds in Rockwool

et al. 2005

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“…The multiplication and survival of DRB are greatly affected by environmental factors (Kremer and Kennedy 1996). Soil moisture, soil texture, and composition of host plant root exudates influence colonization of the rhizosphere and rhizoplane (Howie and Echandi 1983). Fredrickson and Elliott (1985) found that root colonization was similar over a range of root zone temperatures but was dependent on soil type, with higher populations developing in soils with lower organic matter content.…”

Section: Introductionmentioning

confidence: 99%

Weed Suppression by Deleterious Rhizobacteria is Affected by Formulation and Soil Properties

Zdor

Alexander

Kremer

2005

Communications in Soil Science and Plant Analysis

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Deleterious rhizobacteria (DRB) suppress weed growth in field tests and are considered potential weed biological control agents. This study compared the relative inhibitory action of the DRB Pseudomonas fluorescens strain G2-11 in different formulations, corn gluten meal (CGM), and semolina flour, toward wheat (Triticum aestivum L.), green foxtail (Setaria viridis (L.) Beauv.), and velvetleaf (Abutilon theophrasti Medik) seeds and seedlings in soil assays. Strain G2-11 successfully established in semolina flour as an inoculum formulation but was incompatible with CGM presumably because of antibacterial factors present. The effect of DRB and plant products on seed germination and plant growth were influenced by soil, with the strongest effects seen in fine sandy loam. Semolina flour alone reduced root growth of all target plants except for velvetleaf in silt loam. Green foxtail seed germination was greatly reduced by strain G2-11. With the exception of wheat seedling growth, strain G2-11 enhanced growth-suppressive qualities of semolina flour. Results suggest that natural plant products such as CGM and semolina flour alone and formulated with

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“…Biological suppression of potato ring rot by fluorescent pseudomonas was observed in greenhouse and field trials (De la Cruz et al 1992;Gamard & De Boer, 1995). In other field trials, with potato seed pieces of four cultivars, strains of P. putida and P. fluorescens have been shown to increase dry shoot and root weight and significant yield increase in two of three field trials (Howie and Echandi, 1983). Similarly, treatment of potato seed tubers with fluorescent pseudomonads increased tuber yields by 70% compared to the untreated controls (Geels and Schippers, 1983).…”

Section: Fluorescent Pseudomonadsmentioning

confidence: 95%

Biological Control Mechanisms of Fluorescent Pseudomonas Species involved in Control of Root Diseases of Vegetables/ Fruits

Anjaiah¹

2004

Fruit and Vegetable Diseases

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Root diseases of vegetables and fruits are known to be highly destructive which can cause a significant economic yield loss in those crops. The application of fungicides to control root diseases has been increasingly curtailed by the development of pathogen resistance to many key fungicides, expensive, inconsistence, and negative public perception regarding the safety of pesticides and consequent restrictions on fungicide use. Moreover, chlamydospores and mycelium of certain fungi can survive in the soil for several years. Biological control methods that reduce the population of pathogen in the soil appear to be the most practical method. Therefore, plant disease control has generally been focused on the use of biological control agents. Fluorescent pseudomonads have frequently been considered as effective biological control agents against soil-borne plant pathogens because of their rapid and aggressive colonization of plant roots. It has been shown that the fluorescent pseudomonads exert several mechanisms in suppression of plant root diseases, and that such mechanisms differed among the strains. The aim of this study is to analyze biocontrol mechanisms of fluorescent pseudomonads for the traits or metabolites involved in biocontrol of plant root diseases.

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Rhizobacteria: Influence of cultivar and soil type on plant growth and yield of potato

Cited by 53 publications

References 18 publications

Antagonist Microorganisms with the Ability to Control Pythium Damping-off of Tomato Seeds in Rockwool

Antagonist Microorganisms with the Ability to Control Pythium Damping-off of Tomato Seeds in Rockwool

Weed Suppression by Deleterious Rhizobacteria is Affected by Formulation and Soil Properties

Biological Control Mechanisms of Fluorescent Pseudomonas Species involved in Control of Root Diseases of Vegetables/ Fruits

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