Rhizosphere colonization of different crops with growth promoting Pseudomonas and Rhizobium bacteria

Höflich, G.; Wiehe, Wolfgang; Hecht‐Buchholz, Ch.

doi:10.1016/s0944-5013(11)80048-0

Cited by 85 publications

(38 citation statements)

References 15 publications

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“…The survival of inoculated plant-growth promoting bacteria in the plant rhizosphere is in most cases a precondition for a potential plant stimulation effect during the vegetation time (Höflich et al 1995). The results showed that Pseudomonas spp.…”

Section: Resultsmentioning

confidence: 99%

Growth response of wheat cultivars to bacterial inoculation in calcareous soil

Egamberdieva¹

2010

Plant Soil Environ.

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In this study the plant growth-promoting bacteria were analysed for their growth-stimulating effects on two wheat cultivars. The investigations were carried out in pot experiments using calcareous soil. The results showed that bacterial strains Pseudomonas spp. NUU1 and P. fluorescens NUU2 were able to colonize the rhizosphere of both wheat cultivars. Their plant growth-stimulating abilities were affected by wheat cultivars. The bacterial strains Pseudomonas sp. NUU1 and P. fluorescens NUU2 significantly stimulated the shoot and root length and dry weight of wheat cv. Turon, whereas cv. Residence was less affected by bacterial inoculation. The results of our study suggest that inoculation of wheat with Pseudomonas strains can improve plant growth in calcareous soil and it depends upon wheat cultivars. Prior to a selection of good bacterial inoculants, it is recommended to select cultivars that benefit from association with these bacteria.

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Section: Resultsmentioning

confidence: 99%

Growth response of wheat cultivars to bacterial inoculation in calcareous soil

Egamberdieva¹

2010

Plant Soil Environ.

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“…Usually curling occurs only when infection is caused by compatible rhizobia, which are correlated with initial steps of root nodule formation (30). Scanning of literature indicates that symbiotic root nodule bacteria multiply and survive in the rhizosphere of non-legumes also under field conditions (19) colonizing their rhizosphere (2,5). Effect of phytoharmones on root hairs of non-legumes becomes unavoidable.…”

Section: Introductionmentioning

confidence: 99%

“…present in root exudates. Besides, direct growth promotion of different non-legumes by rhizobia has earlier been reported (19). Chabot et al (8) reported the significant increase in dry matter yield of shoot and total phosphorus content by using a phosphate solubilizing strain of R. leguminosarum bv.…”

Section: Introductionmentioning

confidence: 99%

Rhizosphere competent Mesorhizobiumloti MP6 induces root hair curling, inhibits Sclerotinia sclerotiorum and enhances growth of Indian mustard (Brassica campestris)

Chandra¹,

Choure²,

Dubey³

et al. 2007

Braz. J. Microbiol.

128

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The bacterial strain Mesorhizobium loti MP6, isolated from root nodules of Mimosa pudica induced growth and yield of Brassica campestris. The isolate MP6 secreted hydroxamate type siderophore in Chrom-Azurol Siderophore (CAS) agar medium. Production of hydrocyanic acid (HCN), indole acetic acid (IAA) and phosphate solubilizing ability was also recorded under normal growth conditions. Root hair curling was observed through simple glass-slide technique. In vitro study showed a significant increase in population of M. loti MP6 in rhizosphere due to root exudates of B. campestris. In dual culture technique the strain showed a strong antagonistic effect against Sclerotinia sclerotiorum, a white rot pathogen of Brassica campestris. The growth of S. sclerotiorum was inhibited by 75% after prolonged incubation. Efficient root colonization of mustard seedlings was confirmed by using a streptomycin-resistant marker M. loti MP6 strep+ . The M. loti MP6 coated seeds proved enhanced seed germination, early vegetative growth and grain yield as compared to control. Also, a drastic decline (99%) in the incidence of white rot was observed due to application of M. loti MP6.

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“…One gram of roots were shaken in 9 ml sterile PBS and the resulting suspensions were evaluated for colony-forming units (cfu) according to the dilution-plate method in KB agar with addition of 200 µg/ml rifampicin. After incubation for 2-3 days at 28°C the reisolated, rifampicinresistant strains were identified for their colony characteristics (Höflich et al 1995).…”

mentioning

confidence: 99%

Survival of Pseudomonas extremorientalis TSAU20 and P. chlororaphis TSAU13 in the rhizosphere of common bean (Phaseolus vulgaris) under saline conditions

Egamberdieva¹

2011

Plant Soil Environ.

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The abilities of Pseudomonas extremorientalis TSAU20 and P. chlororaphis TSAU13 to colonise and survive in the rhizosphere of common bean under saline conditions were studied. Four salinity levels (5.0, 7.5, 10.0, and 12.5 dS/m) were maintained in the gnotobiotic system using NaCl salt. Results showed that with increasing salt content root-tip colonization of both bacterial strains was reduced. Both bacterial treatments used in the study intcreased root and/or shoot length compared to non-treated plants at each NaCl concentration tested, whereas shoot growth was not stimulated at high saline condition (12.5 dS/m). In conclusion, the results of this study indicated that P. extremorientalis TSAU20 and P. chlororaphis TSAU 13 have the ability to survive in ecologically stressed conditions, such as saline and nitrogen deficient soils, and may positively effect on plant growth of bean. High saslinity inhibited their colonisation in the rhizosphere of bean and thus their stimulatory effect on plants was also reduced.

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Rhizosphere colonization of different crops with growth promoting Pseudomonas and Rhizobium bacteria

Cited by 85 publications

References 15 publications

Growth response of wheat cultivars to bacterial inoculation in calcareous soil

Growth response of wheat cultivars to bacterial inoculation in calcareous soil

Rhizosphere competent Mesorhizobiumloti MP6 induces root hair curling, inhibits Sclerotinia sclerotiorum and enhances growth of Indian mustard (Brassica campestris)

Survival of Pseudomonas extremorientalis TSAU20 and P. chlororaphis TSAU13 in the rhizosphere of common bean (Phaseolus vulgaris) under saline conditions

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