Arsenic Remediation in Bangladeshi Rice Varieties with Enhance Plant Growth by Unique Arsenic-Resistant Bacterial Isolates

Rahman, Md. Shahedur; Jamal, Mohammad Abu Hena Mostofa; Biswas, Polash Kumar; Rahman, Shaikh Mizanur; Sharma, Satya Priya; Saha, Subbroto Kumar; Hong, Seong‐Tshool; Islam, Md. Rezuanul

doi:10.1080/01490451.2019.1666938

Cited by 24 publications

(3 citation statements)

References 36 publications

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“…The ability of soil bacteria to promote plant growth especially in metal-contaminated soil makes the preferred choice for microbial-assisted phytoremediation such as rhizospheric bacteria promoting plant growth by their ability to solubilize phosphate [ 48 ]. ARB species with PGP traits have been reported in several studies in which bacteria have shown a positive role in plant growth [ 49 ]. Bachate et al [ 50 ] have reported ARB species with important PGP traits that have a direct or indirect influence on plant growth.…”

Section: Discussionmentioning

confidence: 99%

Detection of Bacillus Species with Arsenic Resistance and Plant Growth Promoting Efficacy from Agricultural Soils of Nepal

et al. 2022

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Arsenic contamination in soil and water is one of the major environmental problems in multiple countries including Nepal imposing a serious threat to the ecosystem and public health. Many soil bacteria can detoxify arsenic, including genus Bacillus. With an objective to gauge the plant growth-promoting activities of arsenic-resistant Bacillus species, 36 samples (soil, rice, cauliflower, and beans) were collected from the Terai region of Nepal. For selective isolation of Bacillus species, each sample was heated at 80°C for 15 min before the inoculation into nutrient agar (NA). Following the standard protocol, arsenic-resistant Bacillus species were screened using NA supplemented with 100 ppm sodium arsenate and sodium arsenite. Among 158 randomly selected isolates, only five isolates were able to tolerate sodium arsenite concentration up to 600 ppm. Notably, all five isolates were able to produce indole acetic acid (IAA), a plant hormone, and solubilize phosphate. Based on biochemical analysis and 16S rRNA gene sequencing, isolates N4-1, RW, KR7-12, Bhw1-4, and BW2-2 were identified as B. subtilis subsp. stercosis, B. flexus, B. licheniformis, B. cereus, and B. flexus, respectively. To the best of our knowledge, this is the first study showing the presence of arsenic-resistant B. flexus in Nepalese soil with plant growth-promoting traits. Possible utilization of these Bacillus strains could facilitate the novel bioremediation pathway to reduce the toxic effect of arsenic from the soil and water in the Terai region of Nepal.

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Section: Discussionmentioning

confidence: 99%

Detection of Bacillus Species with Arsenic Resistance and Plant Growth Promoting Efficacy from Agricultural Soils of Nepal

et al. 2022

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“…Recently, specific types of metal tolerant PGPB have been recognized that have a fundamental impact on plant growth and the soil remediation of natural and metallic toxins by different methods (Senthil Kumar & Gunasundari, 2018). The use of PGPBs as a soil amendment is receiving more attention in the literature (Manoj et al, 2020;Rahman et al, 2020;Rajendran & Sundaram, 2020) due to the rapid global industrialization and modernization. Microorganisms can degrade and even mineralize toxic organic compounds (Zhuang et al, 2007).…”

Section: Soil Remediationmentioning

confidence: 99%

Soil amendments for sustainable agriculture: Microbial organic fertilizers

Bamdad

Papari

Lazarovits³

et al. 2021

Soil Use and Management

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There is an enormous body of the literature, proving that soil amendments enhance plant growth/yield and prevent the impact of pathogens/toxins. To the best of our knowledge, there is no comprehensive assessment focused on the synergistic effects of microorganisms and soil amendments with biochar or compost for upgrading the current fertilizers towards a more sustainable agriculture. The main objective of the present work is to discuss the most current information needed for developing advanced soil amendments using microorganisms along with safe, sustainable and low-cost waste sourced materials. The first step in designing the biofertilizer is the selection of a microorganism from among a variety of bacterial/fungi strains that have been identified as plant growth promoting (PGP) in the literature. This study classifies the effective types of soil microorganisms with respect to their functionality to facilitate the choice of the best compatible microbial strain(s) in order to satisfy the host environment requirements. The second part is dedicated to various inorganic and organic carriers, such as perlite, peat, fly ash and compost, for delivering of microorganism into the soils. The role of carriers in the survival and the functional contribution of the microbes to soilplant systems are investigated. Lastly, biochar is evaluated as a promising microbial carrier together with its influence on the soil biota including microorganisms and plants. The superior features of biochar, for example high surface area, porosity, customizable structure, high stability, carbon sequestration and synergy, with other fertilizers are also discussed.

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“…Ressalta-se que, nesse caso, o aporte desse contaminante se dá como um subproduto da exploração dos minérios em rochas de arsenopirita que, devido ao processo de lixiviação ácida, libera As para o meio (Teixeira et al, 2020). A Agência de Registro de Substâncias Tóxicas e Doenças (ATSDR) e a Agência Internacional de Pesquisa sobre o Câncer (IARC) classificaram o As no grupo de substâncias perigosas prioritárias, relacionando-o como agente causal de diversos tipos de cânceres (ATSDR, 2019;Rahman et al, 2020;Ghosh et al, 2021). Devido ao seu potencial cancerígeno e associação com outras doenças (cardiovasculares, neurológicas, renais e respiratórias), a Organização Mundial da Saúde (OMS) e a Agência de Proteção Ambiental dos Estados Unidos (US EPA) definiram, como limite máximo de segurança, 10 μg L -1 na água potável e 20 mg kg -1 no solo (Rosas-Castor et al, 2014;Mondal et al, 2021).…”

Section: Introductionunclassified

Participação do silício nos processos de absorção, translocação e atenuação da toxicidade do arsênio em alface (Lactuca sativa L.)

Filho¹

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O arsênio (As) causa a superprodução de espécies reativas de oxigênio (EROs) que acarreta danos em todo o metabolismo vegetal. Plantas contaminadas representam sério risco à saúde, visto que o consumo de alimentos contaminados é uma das formas de intoxicação em seres humanos. O silício é um elemento benéfico para plantas e reconhecido por aliviar o estresse abiótico, incluindo o estresse por As. Portanto, buscamos avaliar o efeito do silício, iônico e nanoparticulado, na mitigação do estresse por As em alface. Para isso, plantas de alface foram cultivadas hidroponicamente por 40 dias e, após aclimatação por 5 dias, foram submetidas a 50 μM de arsenito (As III ) e arsenato (As V ) e 2 mM de silício iônico (Si) e silício nanoparticulado (SiNP) durante dois períodos de exposição (24 e 72 h). Foram realizadas análises relacionadas a anatomia, fotossíntese e bioquímica dessas plantas. Os resultados mostraram que o As, tanto As III quanto As V , causa efeitos negativos sobre todos os parâmetros avaliados e ambas as formas de silício foram capazes de diminuir o estresse por As, por meio da diminuição da absorção e da concentração nas folhas, melhoria nos aspectos anatômicos e modulação da maquinaria antioxidante, onde se destaca uma reduzida peroxidação lipídica. Além disso, contatamos que nanopartículas de silício são tão eficientes quanto a forma iônica na diminuição do estresse por As. Palavras-chave: Estresse oxidativo. Sistema antioxidante. Nanopartículas de silício.

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Arsenic Remediation in Bangladeshi Rice Varieties with Enhance Plant Growth by Unique Arsenic-Resistant Bacterial Isolates

Cited by 24 publications

References 36 publications

Detection of Bacillus Species with Arsenic Resistance and Plant Growth Promoting Efficacy from Agricultural Soils of Nepal

Detection of Bacillus Species with Arsenic Resistance and Plant Growth Promoting Efficacy from Agricultural Soils of Nepal

Soil amendments for sustainable agriculture: Microbial organic fertilizers

Participação do silício nos processos de absorção, translocação e atenuação da toxicidade do arsênio em alface (Lactuca sativa L.)

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