Plant growth-promoting traits of Pseudomonas geniculata isolated from chickpea nodules

Gopalakrishnan, Subramaniam; Srinivas, V.; Bandikinda, Prakash; Sathya, Arumugam; Vijayabharathi, Rajendran

doi:10.1007/s13205-014-0263-4

Cited by 52 publications

(32 citation statements)

References 55 publications

(64 reference statements)

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“…The number of nodules per plant and overall plant growth significantly increased compared to control at 15 and 65 DAS by the inoculation of the CP‐2 strain. The increased nodulation and plant growth was also observed by the inoculation of Pseudomonas geniculata IC‐76 and nitrogen fixing Rhizobium sp. in chickpea under field condition.…”

Section: Discussionmentioning

confidence: 78%

Improvement of Growth, Yield, and Pigmentation of Mung Bean Plants Using Ochrobactrum intermedium CP‐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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Section: Discussionmentioning

confidence: 78%

Improvement of Growth, Yield, and Pigmentation of Mung Bean Plants Using Ochrobactrum intermedium CP‐2 as Bioinoculant

Saini

Nain

Garg

et al. 2017

CLEAN Soil Air Water

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“…The use of PGP bacteria has increased in many parts of the world due to their significant contribution in growth and yield in crops such as wheat, rice, tomato, bean, pea and chickpea (Tokala et al 2002; Nassar et al 2003, El-Tarabily 2008, Sadeghi et al 2012 Gopalakrishnan et al 2015). PGP bacteria also are reported to have induced systemic resistance against a broad range of plant pathogens and insect pests (Jetiyanon and Kloepper 2002; Ryu et al 2007).…”

Section: Resultsmentioning

confidence: 99%

“…and Acinetobacter sp. are not reported to have the nodulation capacity but its colonization on the roots and nodules and their beneficial association with native rhizobia were demonstrated to increase nitrogen fixation, nodulation, plant growth and grain yield of chickpea, soybean and pea (Tokala et al 2002; Valverde et al 2006; Minorsky 2008; Soe et al 2010; Gopalakrishnan et al 2015). The bacteria used in this study did not inhibit the growth of native rhizobia in the antagonism tests by the poisoned food technique (data not shown).…”

Section: Discussionmentioning

confidence: 99%

“…PGP bacteria such as Bacillus subtilis BN1 from the rhizospheres of chir pine ( Pinus roxburghii ), fluorescent Pseudomonas GRC 2 from potato rhizosphere and Pseudomonas chlororaphis SRB 127 from sorghum rhizosphere showed strong antagonistic effect against M. phaseolina , a charcoal rot pathogen of sorghum and peanut (Gupta et al 2002a, b; Das et al 2008; Singh et al 2008). Enhanced plant growth and soil nutrient traits has been reported on various species of Pseudomonas and/or Bacillus on grain legumes such as mung bean (Gupta et al 2002a, b; Tripathi et al 2005), soybean (Gupta et al 2005), black gram (Ganesan 2008) and chickpea (Tank and Saraf 2009; Wani and Khan 2010; Gopalakrishnan et al 2015). …”

Section: Discussionmentioning

confidence: 99%

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Plant growth-promotion and biofortification of chickpea and pigeonpea through inoculation of biocontrol potential bacteria, isolated from organic soils

et al. 2016

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Seven strains of bacteria [Pseudomonas plecoglossicida SRI-156, Brevibacterium antiquum SRI-158, Bacillus altitudinis SRI-178, Enterobacter ludwigii SRI-211, E. ludwigii SRI-229, Acinetobacter tandoii SRI-305 and Pseudomonas monteilii SRI-360; demonstrated previously for control of charcoal rot disease in sorghum and plant growth-promotion (PGP) in rice] were evaluated for their PGP and biofortification traits in chickpea and pigeonpea under field conditions. When treated on seed, the seven selected bacteria significantly enhanced the shoot height and root length of both chickpea and pigeonpea over the un-inoculated control. Under field conditions, in both chickpea and pigeonpea, the plots inoculated with test bacteria enhanced the nodule number, nodule weight, root and shoot weights, pod number, pod weight, leaf weight, leaf area and grain yield over the un-inoculated control plots. Among the seven bacteria, SRI-229 was found to significantly and consistently enhance all the studied PGP and yield traits including nodule number (24 and 36%), nodule weight (11 and 44%), shoot weight (22 and 20%), root weight (23 and 16%) and grain yield (19 and 26%) for both chickpea and pigeonpea, respectively. When the harvested grains were evaluated for their mineral contents, iron (up to 18 and 12%), zinc (up to 23 and 5%), copper (up to 19 and 8%), manganese (up to 2 and 39%) and calcium (up to 22 and 11%) contents in chickpea and pigeonpea, respectively, were found enhanced in test bacteria inoculated plots over the un-inoculated control plots. This study further confirms that the selected bacterial isolates not only have the potential for PGP in cereals and legumes but also have the potential for biofortification of mineral nutrients.

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“…Soil microorganisms play critical roles in nutrient transformation and soil fertility maintenance [1–3]. It has been reported that soil microbial community composition and diversity are affected by nitrogen fertilizer management [4–11].…”

Section: Introductionmentioning

confidence: 99%

Response of Bacteria Community to Long-Term Inorganic Nitrogen Application in Mulberry Field Soil

Wen

et al. 2016

PLoS ONE

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The bacterial community and diversity in mulberry field soils with different application ages of inorganic nitrogen fertilizer (4Y, 4-year-old; 17Y, 17-year-old; 32Y, 32-year- old) were investigated using next-generation sequencing. The results demonstrated that the application ages of nitrogen fertilizer significantly altered soil bacterial community and diversity. Soil bacterial Shannon diversity index and Chao 1 index decreased with the consecutive application of nitrogen fertilizer, and the 4Y soil exhibited the highest bacterial relative abundance and diversity. Of 45 bacterial genera (relative abundance ratio of genera greater than 0.3%), 18 were significantly affected by the plant age, and seven belong to Acidobacteria. The relative abundances of Acidobacteria Gp 1, Gp4 and Gp6 in the 4Y soil were significantly lower than that of in the 17Y and 32Y soils. However, the relative abundance of Pseudononas sp. in the 4Y soil was significantly higher than that of in the 17Y and 32Y soils. Most microbial parameters were significantly affected by soil pH and organic matter content which were significantly changed by long-term application of inorganic nitrogen fertilizer.

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Plant growth-promoting traits of Pseudomonas geniculata isolated from chickpea nodules

Cited by 52 publications

References 55 publications

Improvement of Growth, Yield, and Pigmentation of Mung Bean Plants Using Ochrobactrum intermedium CP‐2 as Bioinoculant

Improvement of Growth, Yield, and Pigmentation of Mung Bean Plants Using Ochrobactrum intermedium CP‐2 as Bioinoculant

Plant growth-promotion and biofortification of chickpea and pigeonpea through inoculation of biocontrol potential bacteria, isolated from organic soils

Response of Bacteria Community to Long-Term Inorganic Nitrogen Application in Mulberry Field Soil

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