Influence of Pseudomonas aeruginosa as PGPR on oxidative stress tolerance in wheat under Zn stress

Islam, Faisal; Yasmeen, Tahira; Ali, Shafaqat; Ali, Shafaqat; Arif, Muhammad Saleem; Hussain, Sabir; Rizvi, Hina

doi:10.1016/j.ecoenv.2014.03.008

Cited by 247 publications

(92 citation statements)

References 57 publications

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“…The most representative and studied species is Pseudomonas fluorescens, which has multiple mechanisms as fluorescence Rainey 2013, Yin et al 2014), phosphate solubilization (Babikova et al 2014) and auxins and gibberellins production (Donati et al 2013, Sauer et al 2013, Colo et al 2014. The same traits have been found in Pseudomonas putida (Ambardar et al 2013, Islam et al 2014. Species of the genus Enterobacter have been reported for its effect as PGP in rice crop (Patel et al 2010) so, strains isolated from maize crops could be as effective as those reported for other crops.…”

Section: Biochemical Characterizationsupporting

confidence: 61%

ISOLATION AND SCREENING OF BACTERIA FROM Zea mays PLANT GROWTH PROMOTERS

Toribio-Jiménez

Rodríguez-Barrera

Hernández-Flores

et al. 2017

Rev. Int. Contam. Ambie.

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Plant growth promoting rhizobacteria is a beneficial microbe colonizing plant roots, which enhances crop productivity and offers an attractive way to replace chemical fertilizers, pesticides, and supplements. In Mexico, the corn (Zea mays L.) is an important annual gramineae crop with a high volume of global production because of the favorable environmental and socioeconomic situation. In this study the isolation of new strains of bacteria under different environmental conditions will enable further research avenues to better use the capacities of root-colonizing bacteria in agricultural production systems. The strains isolates were analyzed for five plant-growth-promoting attributes: N fixation, solubilization of phosphate, production of auxins, siderophores and gibberellins. The identification of bacterial isolates was determined by biochemical assays and VITEK2 Compact (bioMérieux). A total of 143 morphologically distinct rhizobacteria from corn crops of three communities of Guerrero, Mexico, were isolated, and 54 effective multi trait rhizobacteria were found. It was determined that the bacterial isolates are related to Pseudomonas, Enterobacter, Serratia, Pantoea, Staphylococcus, Klebsiella, Burkholderia, Salmonella, Proteus, Acinetobacter, Citrobacter and Streptoccoccus genus. This collection represents the first bank of multi trait activity in Mexico, and it will contribute to future studies as biomolecules for promoting early emergence and growth of the seeds.Palabras clave: maíz, biofertilizante, rizobacteria, rizosfera 2017 DOI: 10.20937/RICA.2017 J. Toribio-Jiménez et al.Rev. Int. Contam. Ambie. 33 (Especial Biotecnología e ingeniería ambiental) 143-150, 144 RESUMENLas rizobacterias promotoras del crecimiento vegetal, son microorganismos benéficos que colonizan las raíces de las plantas para mejorar la productividad de los cultivos y ofrecen una forma atractiva para reemplazar los fertilizantes químicos, plaguicidas y suplementos. En México, el maíz (Zea mays L) es un importante cultivo de gramínea anual con grandes volúmenes de producción global debido a las condiciones ambientales y socioeconómicas favorables . En este trabajo se aislaron nuevas cepas de bacterias bajo diferentes condiciones ambientales que permitirán investigaciones futuras sobre el uso de las capacidades de las bacterias que colonizan la raíz en los sistemas de producción agrícola. A las cepas aisladas se les analizaron cinco capacidades de promoción del crecimiento vegetal: fijación de nitrógeno, solubilización de fosfatos, producción de auxinas, sideróforos y giberelinas. La identificación de las bacterias aisladas se hizo por pruebas bioquímicas y el sistema VITEK2 (bioMérieux). Un total de 143 rizobacterias morfológicamente distintas se aislaron de cultivos de maíz de tres comunidades de Guerrero, México y se encontraron 54 de ellas con múltiples capacidades. Se determinó que los aislados bacterianos se relacionan con los géneros Pseudomonas, Enterobacter, Serratia, Pantoea, Staphylococcus, Klebsiella, Burkholderia...

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Section: Biochemical Characterizationsupporting

confidence: 61%

ISOLATION AND SCREENING OF BACTERIA FROM Zea mays PLANT GROWTH PROMOTERS

Toribio-Jiménez

Rodríguez-Barrera

Hernández-Flores

et al. 2017

Rev. Int. Contam. Ambie.

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“…These increases might be due to their capability to increase root growth with higher auxin production in the rhizosphere, exopolysaccharides production to increase nutrient and moisture availability to plant roots and sanctuary to beneficial microbes, phosphate solubilization to increase P uptake, and capability to massive colonization of plant roots (Principe et al, 2007;Nadeem et al, 2010), and most importantly the synergism of the two strains. Plant growth improving effects of beneficial bacteria are well versed and documented but the synergy of the PGPR strains is more effective in increasing different crop yields under varied soil conditions (Nadeem et al, 2013;Islam et al, 2014;Paulucci et al, 2015). The combined inoculation of PGPR may ameliorate the nutrient deficient conditions in soil and increase nutrient use efficiency while solubilizing the soil bound nutrients and ultimately increase crop productivity (Herrera et al, 1993;Requena et al, 1997).…”

Section: Discussionmentioning

confidence: 99%

Connotation of Enterobacter cloacae-W6 and Serratia ficaria-W10 with or without carriers for improving growth, yield and nutrition of wheat

Zafar-ul-Hye¹,

Aslam²,

Muqaddas³

et al. 2017

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“…PGPR have also been used for phytoremediation of contaminated soils [14]. Their growth promoting effects have been observed during a variety of stress conditions such as salinity [2, 15], drought [16, 17], heat stress [18], metal toxicity [19], and others. For these reasons, PGPR are now widely used as biofertilizers, soil amendments, and rhizoremediators [20–22].…”

Section: Introductionmentioning

confidence: 99%

“…Pseudomonas aeruginosa , when inoculated to soil with Zn toxicity, improved the growth of wheat plants and their tolerance to oxidative stress as shown by an increase in the activity of antioxidant enzymes such as superoxide dismutase (SOD), peroxidase (POD), and catalase (CAT) [19]. Pepper plants inoculated with Bacillus licheniformis strain K11 tolerated drought stress more efficiently than un-inoculated plants, which died after 15 days of drought treatment [17].…”

Section: Introductionmentioning

confidence: 99%

Bacillus aryabhattai SRB02 tolerates oxidative and nitrosative stress and promotes the growth of soybean by modulating the production of phytohormones

Park¹,

Mun²,

Kang³

et al. 2017

PLoS ONE

212

115

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Plant growth promoting rhizobacteria (PGPR) are diverse, naturally occurring bacteria that establish a close association with plant roots and promote the growth and immunity of plants. Established mechanisms involved in PGPR-mediated plant growth promotion include regulation of phytohormones, improved nutrient availability, and antagonistic effects on plant pathogens. In this study, we isolated a bacterium from the rhizospheric soil of a soybean field in Chungcheong buk-do, South Korea. Using 16S rRNA sequencing, the bacterium was identified as Bacillus aryabhattai strain SRB02. Here we show that this strain significantly promotes the growth of soybean. Gas chromatography—mass spectrometry analysis showed that SRB02 produced significant amounts of abscisic acid, indole acetic acid, cytokinin and different gibberellic acids in culture. SRB02-treated soybean plants showed significantly better heat stress tolerance than did untreated plants. These plants also produced consistent levels of ABA under heat stress and exhibited ABA-mediated stomatal closure. High levels of IAA, JA, GA12, GA4, and GA7, were recorded in SRB02-treated plants. These plants produced longer roots and shoots than those of control plants. B. aryabhattai SRB02 was found to be highly tolerant to oxidative stress induced by H2O2 and MV potentiated by high catalase (CAT) and superoxide dismutase (SOD) activities. SRB02 also tolerated high nitrosative stress induced by the nitric oxide donors GSNO and CysNO. Because of these attributes, B. aryabhattai SRB02 may prove to be a valuable resource for incorporation in biofertilizers and other soil amendments that seek to improve crop productivity.

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Influence of Pseudomonas aeruginosa as PGPR on oxidative stress tolerance in wheat under Zn stress

Cited by 247 publications

References 57 publications

ISOLATION AND SCREENING OF BACTERIA FROM Zea mays PLANT GROWTH PROMOTERS

ISOLATION AND SCREENING OF BACTERIA FROM Zea mays PLANT GROWTH PROMOTERS

Connotation of Enterobacter cloacae-W6 and Serratia ficaria-W10 with or without carriers for improving growth, yield and nutrition of wheat

Bacillus aryabhattai SRB02 tolerates oxidative and nitrosative stress and promotes the growth of soybean by modulating the production of phytohormones

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