New advances in plant growth-promoting rhizobacteria for bioremediation

Zhuang, Xuliang; Chen, Jian; Shim, Hyungbo; Bai, Zhihui

doi:10.1016/j.envint.2006.12.005

Cited by 521 publications

(219 citation statements)

References 103 publications

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“…For effective bioremediation of metal contaminated soils, several organisms have been utilized isolated from varied environments [33,34]. Microbial isolates from rhizosphere can also be effectively harnessed for bioremediation of contaminated environments.…”

Section: Rhizobacteria In Metal Bioremediationmentioning

confidence: 99%

“…KR013, Pseudomonas fl uorescens CR3, Rhizobium leguminosarum bv. trifolii NZP561, Kluyvera ascorbata SUD165 [33] are used in bioremediation. The rhizobacteria associated with hyperaccumulators, Bacillus subtilis, Bacillus pumilus, Pseudomonas pseudoalcaligenes and Brevibacterium halotolerans are also widely used in bio-and rhizo-remediation of multimetal contaminated sites [36].…”

Section: Rhizobacteria In Metal Bioremediationmentioning

confidence: 99%

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Rhizoremediation of metals: harnessing microbial communities

Banu

Ramasamy

2008

Indian J Microbiol

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With the increasing successful stories of decontamination, different strategies for metal remediation are gaining importance and popularization in developing countries. Rhizoremediation, is one such promising option that harnesses the impressive capabilities of microorganisms associated with roots to degrade organic pollutants and transform toxic metals. Since it is a plant based in-situ phytorestoration technique it is proven to be economical, effi cient and easy to implement under fi eld conditions. Plants grown in metal contaminated sites harbor unique metal tolerant and resistant microbial communities in their rhizosphere. These rhizo-microfl ora secrete plant growth promoting substances, siderophores, phytochelators to alleviate metal toxicity, enhance the bioavailability of metals (phytoremediation) and complexation of metals (phytostabilisation). Selection of right bacteria/consortia and inoculation to seed/ roots of suitable plant species will widen the perspectives of rhizoremediation.

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Section: Rhizobacteria In Metal Bioremediationmentioning

confidence: 99%

Section: Rhizobacteria In Metal Bioremediationmentioning

confidence: 99%

Rhizoremediation of metals: harnessing microbial communities

Banu

Ramasamy

2008

Indian J Microbiol

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“…Bioremediation has been regarded as an environment-friendly, inexpensive and efficient means of (Hrynkiewicz and Baum 2014). The role of micro-organisms is indirect as they support the growth of phytoaccumulator plants thus they help in the remediation of heavy metal (Yan-de et al 2007;Zhuang et al 2007). The micro-organisms, which are closely associated with roots, have been termed plant growthpromoting rhizobacteria (PGPR).…”

Section: By Using Micro-organismsmentioning

confidence: 99%

Remediation of heavy metal contaminated ecosystem: an overview on technology advancement

Singh

Prasad

2014

Int. J. Environ. Sci. Technol.

141

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The issue of heavy metal pollution is very much concerned because of their toxicity for plant, animal and human beings and their lack of biodegradability. Excess concentrations of heavy metals have adverse effects on plant metabolic activities hence affect the food production, quantitatively and qualitatively. Heavy metal when reaches human tissues through various absorption pathways such as direct ingestion, dermal contact, diet through the soil-food chain, inhalation and oral intake may seriously affect their health. Therefore, several management practices are being applied to minimize metal toxicity by attenuating the availability of metal to the plants. Some of the traditional methods are either extremely costly or they are simply applied to isolate contaminated site. The biology-based technology like use of hypermetal accumulator plants occurring naturally or created by transgenic technology, in recent years draws great attention to remediate heavy metal contamination. Recently, applications of nanoparticle for metal remediation are also attracting great research interest due to their exceptional adsorption and mechanical properties and unique electrical property, highly chemical stability, and large specific surface area. Thus, the present review deals with different management approaches to reduce level of metal contamination in soil and finally to the food chain.

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“…Besides, the production of low-cost inoculants with PGPRs is an alternative to reduce the use of agrochemicals and chemical products (Coelho et al, 2007). In addition to these benefits, the rhizobacteria can act as biological control agents of diseases (Zhuang et al, 2007). PGPRs act as biological control agents of diseases, since they induce systemic resistance in plants, producing antibiotics and siderophores, which inhibit the growth of several pathogens by activating the formation of physical and chemical barriers (Kloepper et al, 2004;Romeiro, 2007).…”

Section: Palavras-chavementioning

confidence: 99%

Agronomic performance of okra under the effect of seed microbiolization with rhizobacteria

et al. 2017

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Plant-growth promoting rhizobacteria are an alternative to increase the productivity, adding value to the productive system of crops like okra. We aimed to evaluate the agronomic characteristics of okra genotypes after seed microbiolization with nine strains of rhizobacteria. The experimental design was in randomized blocks, in a 2x10 factorial scheme, using two okra genotypes, cultivar Santa Cruz 47 and hybrid Dardo, nine strains of rhizobacteria, LEBM 103, 105, 109, 112, 118, 134, 135, 152 RESUMODesempenho agronômico de cultivares de quiabeiro sob efeito da microbiolização das sementes com rizobactérias As rizobácterias promotoras de crescimento de plantas surgem como alternativa para incrementar a produtividade, agregando valor ao sistema produtivo de culturas como o quiabeiro. Este trabalho objetivou avaliar o rendimento agronômico de duas cultivares de quiabeiro após a microbiolização das sementes com nove cepas de rizobactérias. O delineamento experimental utilizado foi em blocos inteiramente casualizados, em esquema fatorial 2x10, sendo dois genótipos de quiabo, cultivar Santa Cruz 47 e híbrido Dardo, nove cepas de rizobactéria, LEBM 103, 105, 109, 112, 118, 134, 135, 152 e 154, além de uma testemunha (sem microbiolização), com quatro repetições. As variáveis analisadas foram: número de frutos por planta (NFP); diâmetro médio dos frutos (DM); produtividade (PDT); massa fresca dos frutos por planta (MFFP) e massa média por fruto (MMF). Verificou-se que a utilização das rizobactérias LEBM 109, 112, 152 e 154 condicionou maiores valores de MFFP (1202,7; 1086,5; 1158,2 e 1175,9 g, respectivamente), PDT (24,1; 21,7; 23,2 e 23,5 t/ha, respectivamente) e NFP (78,0; 69,4; 73,27 e 76,5, respectivamente), em relação às demais cepas e à não utilização da microbiolização das sementes do hibrido Dardo. Para a cultivar Santa Cruz 47 as rizobactérias LEBM 105, 112 e 152 proporcionaram maiores valores de MFFP (896,7; 769,0 e 762,2 g, respectivamente). Avaliando-se os genótipos ao utilizar cada rizobactéria, para as variáveis MFFP e PDT, verificou-se que apenas para a rizobactéria LEBM 105, não houve diferenças entre os genótipos. Conclui-se, que a microbiolização de sementes de quiabo com rizobactérias pode proporcionar ganhos de produtividade e com potencial de se tornar uma técnica viável. As rizobactérias mais recomendadas para o cultivo do híbrido Dardo são a LEBM 109, 112, 152 e 154, enquanto para o cultivo da cv. Santa Cruz 47 são as cepas LEBM 105, 112 e 152. Palavras-chave:Abelmoschus esculentus, microorganismo da rizosfera, genótipos de quiabo.

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New advances in plant growth-promoting rhizobacteria for bioremediation

Cited by 521 publications

References 103 publications

Rhizoremediation of metals: harnessing microbial communities

Rhizoremediation of metals: harnessing microbial communities

Remediation of heavy metal contaminated ecosystem: an overview on technology advancement

Agronomic performance of okra under the effect of seed microbiolization with rhizobacteria

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