A Pseudomonas guariconensis strain capable of promoting growth and controlling collar rot disease in Arachis hypogaea L

Patel, Ravi R.; Thakkar, Vasudev R.; Subramanian, Bagavathi R.

doi:10.1007/s11104-015-2436-2

Cited by 26 publications

(15 citation statements)

References 46 publications

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“…Plant growth promoting bacteria enhances the plant vegetative and reproductive growth parameters by colonizing plant roots. Further establishing symbiotic association with plants, leading to enrichment of soil vital nutrients viz., nitrogen (N), by fixing it from the atmosphere, phosphorous (P), potassium (K) by solubilizing it from the soil 6–8 , along with enhancing the plant growth. Besides providing major plant nutrients, plant growth promoting bacteria also aid in providing soluble zinc (ZnO, ZnCO 3 , and Zn 3 (PO 4 ) 2 ) from total soil zinc 9,10 .…”

Section: Introductionmentioning

confidence: 99%

Decoding multifarious role of cow dung bacteria in mobilization of zinc fractions along with growth promotion of C. annuum L.

Bhatt

Maheshwari

2019

Sci Rep

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Zinc is one of the micronutrients, required by all types of crops. About 10–100ppm of zinc is present in soil which is generally immobile. The cow dung sustains all life and being practice since aeons. Exploitation of cow dung bacteria can mobilize nutrients besides contributing in sustainable agriculture. Therefore, to examine mobilization of Zn, cow dung is used as a source of bacteria. The objectives of the present study were to isolate an array of bacteria from cow dung and to characterize them for their Zn (ZnO and ZnCO3) mobilization ability in addition to establish the optimum conditions for dissolution of zinc. A total of seventy bacterial isolates have been screened for Zn mobilization. Out of which most potent (CDK15 and CDK25) were selected to study the effect of various parameters viz. pH, temperature and concentration of Zn. These parameters were assessed qualitatively in diverse growth medium and quantitatively using Atomic absorption spectroscopy. Optimum pH and temperature for mobilization was recorded at pH 5 (ZnO) and 37 °C (ZnCO3) by CDK25, whereas, optimum zinc concentration for mobilization was recorded at 0.05% (ZnO) by CDK15. Maximum amount of Zn solubilized was recorded by CDK25 in ZnO (20ppm). Considering the abilities of most potent bacterial isolates with reference to P-mobilization and growth promoting traits, pot culture assay of C. annuum L. was carried out. The findings of which conclude that, bacterium CDK25 (Bacillus megaterium) could be exploited for factors viz. nutrient management of Zn, growth promoting agent, and Zn augmentation in soil.

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Section: Introductionmentioning

confidence: 99%

Decoding multifarious role of cow dung bacteria in mobilization of zinc fractions along with growth promotion of C. annuum L.

Bhatt

Maheshwari

2019

Sci Rep

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“…PGPR enrich soil with major plant nutrients such as nitrogen (N) by fixing it from the atmosphere, phosphorous (P), and potassium (K) by solubilizing them from the soil (Patel et al, 2015 ; Pii et al, 2015 ; Zahid et al, 2015 ). They also assist in bioavailability of Zn by solubilizing it from various ores like Zn 3 (PO 4 ) 2 , ZnCO 3 , and ZnO (Abaid-Ullah et al, 2015 ; Sirohi et al, 2015 ).…”

Section: Introductionmentioning

confidence: 99%

Root Associated Bacillus sp. Improves Growth, Yield and Zinc Translocation for Basmati Rice (Oryza sativa) Varieties

et al. 2015

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Plant associated rhizobacteria prevailing in different agro-ecosystems exhibit multiple traits which could be utilized in various aspect of sustainable agriculture. Two hundred thirty four isolates were obtained from the roots of basmati-385 and basmati super rice varieties growing in clay loam and saline soil at different locations of Punjab (Pakistan). Out of 234 isolates, 27 were able to solubilize zinc (Zn) from different Zn ores like zinc phosphate [Zn3 (PO4)2], zinc carbonate (ZnCO3) and zinc oxide (ZnO). The strain SH-10 with maximum Zn solubilization zone of 24 mm on Zn3 (PO4)2ore and strain SH-17 with maximum Zn solubilization zone of 14–15 mm on ZnO and ZnCO3ores were selected for further studies. These two strains solubilized phosphorous (P) and potassium (K) in vitro with a solubilization zone of 38–46 mm and 47–55 mm respectively. The strains also suppressed economically important rice pathogens Pyricularia oryzae and Fusarium moniliforme by 22–29% and produced various biocontrol determinants in vitro. The strains enhanced Zn translocation toward grains and increased yield of basmati-385 and super basmati rice varieties by 22–49% and 18–47% respectively. The Zn solubilizing strains were identified as Bacillus sp. and Bacillus cereus by 16S rRNA gene analysis.

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“…P. mosselii was originally isolated from clinical specimens and some isolates have biotechnological importance, including for agriculture (Dabboussi et al 2002;De La Torre-Ruiz et al 2016). P. guariconensis was identified colonizing the rhizosphere of leguminous Vigna unguiculata and has potential to solubilize inorganic phosphates and to promote plant growth (Toro et al 2013;Patel et al 2015).…”

Section: Resultsmentioning

confidence: 99%

Ammonium excretion, auxin production and effects of maize inoculation with ethylenediamine-resistant mutants of Pseudomonas sp.

et al. 2018

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Plant growth-promoting bacteria (PGPB) comprise part of plant microbiome of biotechnological interest due to their potential to decrease the use of agrochemicals in agriculture.Among the commonly found PGPB species, the Pseudomonas genus is known for high competitiveness and efficiency in expressing growth-promotion traits. To increase the contribution of diazotrophic Pseudomonas sp. to the plant nitrogen nutrition, the strain AZM-01 was chemically mutagenized with methyl methanesulfonate (MMS), following the selection for resistance to ethylenediamine (EDA). From the 13 EDA-resistant mutant strains selected, four showed increased the ammonium excretion, with the highest value reaching up to 284% increase as compared to the wild strain, and six strains were found to produce significantly more auxins than the wild strain. Two independent inoculation trials with the wild and

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A Pseudomonas guariconensis strain capable of promoting growth and controlling collar rot disease in Arachis hypogaea L

Cited by 26 publications

References 46 publications

Decoding multifarious role of cow dung bacteria in mobilization of zinc fractions along with growth promotion of C. annuum L.

Decoding multifarious role of cow dung bacteria in mobilization of zinc fractions along with growth promotion of C. annuum L.

Root Associated Bacillus sp. Improves Growth, Yield and Zinc Translocation for Basmati Rice (Oryza sativa) Varieties

Ammonium excretion, auxin production and effects of maize inoculation with ethylenediamine-resistant mutants of Pseudomonas sp.

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