Effect of bacterial consortium on alfalfa (Medicago sativa L.) plant nutrient uptake and antioxidant enzymes at different levels of oily sludge

IF 0.9 4区 生物学 Q4 PLANT SCIENCES Israel Journal of Plant Sciences Pub Date : 2020-02-26 DOI:10.1163/22238980-20201078
A. Shahzad, A. Bano, S. Siddiqui
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引用次数: 2

Abstract

Under stress environment of oily sludge, plants develop oxidative stress which effect nutrients uptake, activity of oxidative defence enzymes, cause ion imbalance and toxicity in plants. The present study was designed to develop a combination of bacterial consortium alone and with fertilizers that can help to improve alfalfa growth and plant defence system under stress environment of oily sludge contamination soils. For this study consortium was prepared from Bacillus cereus (Acc KR232400), Bacillus altitudinis (Acc KF859970), Comamonas (Acc KF859971) and Stenotrophomonas maltophilia (Acc KF859973) and was inoculated with fertilizer to oily sludge contaminated soils. A pot experiment was conducted using complete randomized design with three replicates. The plants were harvested at 21 d for estimation of protein, proline and antioxidant enzymes superoxide dismutase (SOD) and peroxidase (POD). The protein, SOD and POD contents in alfalfa were higher in oily sludge than soil without consortium, ammonium nitrate and diamamoiun phosphate. Consortium suppressed the oxidative stress of sludge treated plants. The inoculation of bacterial consortium enhanced the uptake of Ca, Mg, K and Na. The uptake of Ca, Mg, K, Fe, Cu and Zn increased significantly with consortium+fertilizer the availability of nutrients in soil with 30% and 60% of oily. Cd content was greater in root than leaves of alfalfa. The bacterial consortium helped to enhance plant growth and plant anti-oxidant enzymes system. The consortium with fertilizer is the best suitable combination for alfalfa that can improve the oxidative enzyme system of alfalfa and increases its growth and development.
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不同水平含油污泥下细菌联合体对苜蓿植株养分吸收和抗氧化酶的影响
在油泥胁迫环境下,植物产生氧化应激,影响养分吸收和氧化防御酶的活性,引起植物离子失衡和中毒。在油泥污染土壤的胁迫环境下,利用细菌联合菌群与肥料的结合,提高紫花苜蓿的生长和植物防御系统。本研究以蜡样芽孢杆菌(Acc KR232400)、高原芽孢杆菌(Acc KF859970)、单胞菌(Acc KF859971)和嗜麦芽窄养单胞菌(Acc KF859973)为原料制备联合体,与肥料一起接种于含油污泥污染的土壤。盆栽试验采用完全随机设计,共3个重复。21 d收获植株,测定蛋白质、脯氨酸和抗氧化酶超氧化物歧化酶(SOD)和过氧化物酶(POD)的含量。含油污泥中紫花苜蓿蛋白质、SOD和POD含量均高于无联合体、硝酸铵和磷酸二胺土壤。联合体抑制污泥处理植物的氧化应激。接种菌群提高了对Ca、Mg、K和Na的吸收。在30%和60%含油土壤养分有效性下,连体+施肥显著提高了土壤对Ca、Mg、K、Fe、Cu和Zn的吸收。紫花苜蓿根中Cd含量高于叶片。细菌联合体有助于促进植物生长和植物抗氧化酶系统。肥配配是紫花苜蓿的最佳适宜组合,能改善紫花苜蓿的氧化酶系统,促进紫花苜蓿的生长发育。
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来源期刊
Israel Journal of Plant Sciences
Israel Journal of Plant Sciences 生物-植物科学
CiteScore
1.90
自引率
0.00%
发文量
17
审稿时长
>12 weeks
期刊介绍: The Israel Journal of Plant Sciences is an international journal of extensive scope that publishes special issues dealing with all aspects of plant sciences, including but not limited to: physiology, cell biology, development, botany, genetic
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