Using plant growth-promoting rhizobacteria (PGPR) to improve plant growth

Grobelak, Anna; Napora, Anna; Kacprzak, Małgorzata

doi:10.1016/j.ecoleng.2015.07.019

Cited by 140 publications

(65 citation statements)

References 25 publications

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“…The treatment that promoted the highest growth (KRC 2.2) did not display the highest number of plant growth-promoting characteristics in vitro. Unlike the results reported by Grobelak et al (2015), not all the microorganisms with the highest IAA values were capable of increasing plant growth. Phosphate solubilization also varied among microorganisms that increased maize growth.…”

Section: Resultscontrasting

confidence: 55%

Isolation and selection of plant growth-promoting bacteria associated with sugarcane

Rodrigues

Forzani

Soares

et al. 2016

Pesqui. Agropecu. Trop.

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Microorganisms play a vital role in maintaining soil fertility and plant health. They can act as biofertilizers and increase the resistance to biotic and abiotic stress. This study aimed at isolating and characterizing plant growth-promoting bacteria associated with sugarcane, as well as assessing their ability to promote plant growth. Endophytic bacteria from leaf, stem, root and rhizosphere were isolated from the RB 867515 commercial sugarcane variety and screened for indole acetic acid (IAA) production, ability to solubilize phosphate, fix nitrogen and produce hydrogen cyanide (HCN), ammonia and the enzymes pectinase, cellulase and chitinase. A total of 136 bacteria were isolated, with 83 of them presenting some plant growth mechanism: 47 % phosphate solubilizers, 26 % nitrogen fixers and 57 % producing IAA, 0.7 % HCN and chitinase, 45 % ammonia, 30 % cellulose and 8 % pectinase. The seven best isolates were tested for their ability to promote plant growth in maize. The isolates tested for plant growth promotion belong to the Enterobacteriaceae family and the Klebsiella, Enterobacter and Pantoea genera. Five isolates promoted plant growth in greenhouse experiments, showing potential as biofertilizers.

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Section: Resultscontrasting

confidence: 55%

Isolation and selection of plant growth-promoting bacteria associated with sugarcane

Rodrigues

Forzani

Soares

et al. 2016

Pesqui. Agropecu. Trop.

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“…Plant growth promoting assay with common wheat was conducted as described by Grobelak et al (2015). The seeds of common wheat (Triticum aestivum) were surface sterilized with 1.5% (v/v) sodium hypochlorite for 10 min and washed with sterile water for 3 times.…”

Section: Plant Growth Promoting Assay With Common Wheat (Triticum Aesmentioning

confidence: 99%

“…PGPB can also stimulate plant growth indirectly by suppressing phytopathogens in forms of producing antibiotics, siderophores, and fungal cell wall-lysing enzymes (Ji et al, 2014). The largest groups of PGPB are Pseudomonas, Bacillus, Enterobacter, and Erwinia (Grobelak et al, 2015). Majority of researched PGPB are isolated from rhizosphere and they are generally known as plant growth promoting rhizobacteria (PGPR) (Khalid et al, 2004).…”

Section: Introductionmentioning

confidence: 99%

“…Furthermore, plant nutrients are present in inorganic plant-available forms in digestate at a markedly higher level compared to undigested organic wastes, because of the mineralization of organic nutrients during anaerobic digestion process (Umetsu et al, 2002). Previous researches have documented the beneficial effects of digestate as organic fertilizer on plant growth and nutrients uptake, and soil structure and microbial activity (Muscolo et Plant growth promoting bacteria (PGPB) represent a wide variety of bacteria, which occupy the rhizosphere of many plant species and promote host plant growth directly by solubilizing minerals such as phosphorus, producing siderophores that chelate iron and producing phytohormones (Grobelak et al, 2015). Phosphorus (P) is one of the major macronutrients required for growth and development of plant.…”

Section: Introductionmentioning

confidence: 99%

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Isolation and characterization of plant growth promoting bacteria (PGPB) from anaerobic digestate and their effect on common wheat (Triticum aestivum) seedling growth

Qi¹,

Pan²,

Andriamanohiarisoamanana³

et al. 2017

IJOEAR

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“…PGPB act through complex mechanisms not yet fully explained (FIGUEIREDO et al, 2011;DUCA et al, 2014). PGPB may directly facilitate the supply of nutrients, produce siderophores and control phytohormone levels, particularly indole acetic acid (IAA), and consequently reduce the negative effects of environmental stress (DUCA et al, 2014;GLICK, 2014;GROBELAK et al, 2015). As indirect mechanisms, PGPB act by limiting the growth of pathogens through competitive processes (antibiosis and hyperparasitism) and the induction of systemic resistance (EGORSHINA et al, 2012;DUCA et al, 2014).…”

Section: Introductionmentioning

confidence: 99%

Varieties of lima bean shows different growth responses when inoculated with Bacillus sp., a plant growth-promoting bacteria

Lima¹,

Neto²,

Araújo³

et al. 2016

Biosci. J.

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Plant growth-promoting bacteria (PGPB) comprise of soil microorganisms that cause positive effects on plant growth. The hypothesis according to which the inoculation of lima bean with PGPB Bacillus stimulates vegetative growth, which may result in a higher plant productivity, was tested. Thus, this study aimed to evaluate the effects of inoculation of two varieties of lima bean (branca and boca de moça) with Bacillus sp., UFPEDA 472 strain, based on plant growth responses. The experiment was conducted in a greenhouse using a completely randomized design. Three treatments were applied separately to each lima bean variety: the first used inoculation with Bacillus, one was submitted to nitrogen supplementation, and one was the absolute control (non-inoculated plants). The following variables were evaluated: absolute and relative growth rate, root length, stem diameter, fresh and dry mass of shoots and roots, shoot:root ratio and total chlorophyll. The results showed that lima bean displayed better growth responses when inoculated with Bacillus sp. UFPEDA 472 in relation to the treatment with nitrogen and/or non-inoculated plants. When inoculated with PGPB Bacillus, the lima bean var. branca was superior to boca de moça in terms of root length and root dry mass. The lima bean var. boca de moça inoculated with Bacillus sp. UFPEDA 472 was superior to branca in terms of absolute growth rate, stem diameter, fresh and dry mass of shoot, shoot:root ratio and total chlorophyll. In general, the lima bean var. boca de moça inoculated with Bacillus shows a better growth performance. Our results suggest that growth responses of lima bean varieties branca and boca de moça are related with a positive interaction with the PGPB Bacillus.

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Using plant growth-promoting rhizobacteria (PGPR) to improve plant growth

Cited by 140 publications

References 25 publications

Isolation and selection of plant growth-promoting bacteria associated with sugarcane

Isolation and selection of plant growth-promoting bacteria associated with sugarcane

Isolation and characterization of plant growth promoting bacteria (PGPB) from anaerobic digestate and their effect on common wheat (Triticum aestivum) seedling growth

Varieties of lima bean shows different growth responses when inoculated with Bacillus sp., a plant growth-promoting bacteria

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