Cicer arietinum growth promotion by Ochrobactrum intermedium and Bacillus cereus in the presence of CrCl3 and K2CrO4

Riaz, Saira; Faisal, Muhammad; Hasnain, Shahida

doi:10.1007/s13213-010-0123-3

Cited by 8 publications

(4 citation statements)

References 24 publications

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“…Results showed that different growth parameters (% germination, root length, shoot length) of clover were affected drastically under Cr(VI) stress. Similar fi ndings were also observed by Faisal [23] and Riaz [24] where seed germination and growth of Helianthus annuus and Cicer arietinum, respectively were markedly affected by the presence of chromate salts. Cr(VI) caused decrease in root and shoot length, but inoculation of soil with bacterial strains signifi cantly enhanced growth of seed when compared with non inoculated controls.…”

Section: Discussionsupporting

confidence: 85%

Chromium Resistant Bacteria: Impact on Plant Growth in Soil Microcosm

Sayel¹,

Joutey²,

Bahafid³

et al. 2014

Archives of Environmental Protection

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Three chromium resistant bacterial strains, Pseudomonas fl uorescens PF28, Enterobacter amnigenus EA31 and Enterococcus gallinarum S34 isolated from tannery waste contaminated soil were used in this study. All strains could resist a high concentration of K 2 Cr 2 O 7 that is up to 300 mg/L. The effect of these strains on clover plants (Trifolium campestre) in the presence of two chromium salts CrCl 3 and K 2 Cr 2 O 7 was studied in soil microcosm. Application of chromium salts adversely affected seed germination, root and shoot length. Bacterial inoculation improved the growth parameters under chromate stress when compared with non inoculated respective controls. There was observed more than 50% reduction of Cr(VI) in inoculated soil microcosms, as compared to the uninoculated soil under the same conditions. The results obtained in this study are signifi cant for the bioremediation of chromate pollution.

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Section: Discussionsupporting

confidence: 85%

Chromium Resistant Bacteria: Impact on Plant Growth in Soil Microcosm

Sayel¹,

Joutey²,

Bahafid³

et al. 2014

Archives of Environmental Protection

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“…2). Moreover, the plant inoculation data obtained in this and other studies (Faisal and Hasnain 2004;Chakraborty et al 2009;Riaz et al 2010) show that O. anthropi or O. intermedium can be safely used as PGPR.…”

Section: Discussionsupporting

confidence: 59%

Ochrobactrum sp. Pv2Z2 exhibits multiple traits of plant growth promotion, biodegradation and N-acyl-homoserine-lactone quorum sensing

et al. 2014

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Rhizosphere bacteria play a vital role in plant growth, pathogen control, biodegradation and rhizosphere signaling. A motile, rod-shaped bacterium, Pv2Z2, isolated from the nodules of the common bean grown in Tanzanian soil was characterized using a polyphasic approach. The traits assessed included the production of indole-3-acetic acid and N-acyl homoserine lactone (AHL) molecules, solubilization of insoluble phosphate and zinc compounds and biodegradation of a number of toxic compounds. The 16S rRNA sequence of Pv2Z2 (EU399793) showed 99 % homology to Ochrobactrum anthropi isolates (Accession no. AJ867292, AJ867291, AJ867290) from soil samples of wheat root. Phylogenetic analysis showed relatedness to nodulating strain Ochrobactrum cytisi rather than to the clinical/pathogenic type strain of O. anthropi. Moreover, it showed unique fingerprints in the randomly amplified polymorphic DNA (RAPD) and two primers-RAPD assays which were different from those of the pathogenic type strain of O. anthropi. The bacterium produced 6.68 μg/mL -1 indoleacetic acid in the presence of tryptophan, released 25.7 μg/mL -1 phosphorus from inorganic tri-calcium phosphate in the Pikoviskaya's medium and solubilized zinc sulphate and zinc oxide in the LG1 medium. The production of AHLs (e.g. 3O-C7-HSL, 3OH-C7-HSL) was detected with biosensor strains CV026 using reverse phase thin layer chromatography. The bacterium was able to grow in minimal salt medium supplemented with 100 mg/L each of phenol, 2-bromophenol, 2,4-diamino phenol hydrochloride, 3,4-dimethoxy benzyl alcohol and 4-methoxy benzyl alcohol. Phenol degradation was recorded up to a level of 94 % within 12 days. Inoculation of common bean plants resulted in a significant increase in plant height, fresh/dry weight and nitrogen uptake as compared to non-inoculated plants. The data suggest that the plant growth-promoting and biodegradation potential of this bacterium may be exploited on a large scale. The capacity to produce AHL molecules by members of the Ochrobactrum genus has not been previously reported and needs to be explored in detail.

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“…Very little work has been done on O. intermedium for growth and yield promotion of crops, which makes this work academically relevant. Faisal and Hasnain reported that O. intermedium CrT‐1, isolated from chromium‐contaminated wastewater, enhanced the growth of sunflower ( Helianthus annuus L.) and decreased Cr(VI) uptake in pot experiments, whereas Riaz et al reported the growth promotion in chickpea in the presence of CrCl 3 and K 2 CrO 4 . Ochrobactrum anthropi is though considered as the most potent pathogen among all species, but O. intermedium strains have also been isolated from patients lately, therefore, pathogenicity tests for the strain CP‐2 is recommended.…”

Section: Discussionmentioning

confidence: 99%

Improvement of Growth, Yield, and Pigmentation of Mung Bean Plants UsingOchrobactrum intermediumCP‐2 as Bioinoculant

Saini

Nain

Garg

et al. 2017

CLEAN Soil Air Water

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The selection of strains for production of biofertilizers is of primary importance. A strain with diverse growth promoting activities, especially the nitrogen fixation and phosphate solubilization, has highest preference over those with just one activity. In the present study, a symbiotic nitrogen fixing bacterium was isolated from the root nodules of chickpea and characterized as Ochrobactrum intermedium CP‐2 on the basis of biochemical tests and partial 16S rRNA gene sequencing and blast analysis. Besides fixing nitrogen, the CP‐2 strain also showed the ability of phosphate solubilization and indole acetic acid production. It was also found positive for ammonia and siderophore production. A significant increase in the lengths of radical and plumule and percent germination was observed when the rhizobacterial strain selected for the study was inoculated in vitro for seed assay. O. intermedium CP‐2 significantly (p < 0.05) increased shoot and root lengths, fresh and dry weights, and yield of mung bean plants both in pot trials and under field conditions. The nutrient uptake and microbial count also increased significantly with inoculation of the strain during the experiment. This study revealed the positive effect of O. intermedium CP‐2 on mung bean crop.

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Cicer arietinum growth promotion by Ochrobactrum intermedium and Bacillus cereus in the presence of CrCl3 and K2CrO4

Cited by 8 publications

References 24 publications

Chromium Resistant Bacteria: Impact on Plant Growth in Soil Microcosm

Chromium Resistant Bacteria: Impact on Plant Growth in Soil Microcosm

Ochrobactrum sp. Pv2Z2 exhibits multiple traits of plant growth promotion, biodegradation and N-acyl-homoserine-lactone quorum sensing

Improvement of Growth, Yield, and Pigmentation of Mung Bean Plants UsingOchrobactrum intermediumCP‐2 as Bioinoculant

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