Article
Ecology
R. Yankey, J. K. Karanja, E. J. Okal, I. N. A. Omoor, H. Lin, D. M. Bodjremou, J. Li, D. M. Lin, X. M. Cao, Z. X. Lin
Summary: This study demonstrated that the application of multiple bacterial strains significantly enhanced plant growth and phytoremediation of Cd stressed soils.
APPLIED ECOLOGY AND ENVIRONMENTAL RESEARCH
(2021)
Article
Ecology
Rubens Barrichello Gomes Barbosa, Alisson Carraro Borges, Hugo Humberto de Araujo, Leonardus Vergutz, Andre Pereira Rosa
Summary: This study assessed the efficiency of Polygonum hydropiperoides in removing chromium from synthetic tannery wastewater using constructed wetland (CW) systems. The results showed that all CWs were efficient in chromium removal, with no significant differences among them. In the CWs with added phytohormone and plant growth-promoting bacteria, there were fewer visual damages, lower detection of cell death, and an increase in growth and productivity of P. hydropiperoides.
ECOLOGICAL ENGINEERING
(2023)
Article
Environmental Sciences
Sarah Al-Ateeqi, Layla Al-Musawi, Virender Sharma, Meshal Abdullah, Xingmao Ma
Summary: This study reports the recovery of desert plant communities in Kuwait after 20 years of oil pollution, and suggests that certain native plant species can tolerate and potentially remediate oil-polluted soil. The findings highlight the importance of these plant communities in improving soil quality and biodiversity.
LAND DEGRADATION & DEVELOPMENT
(2022)
Review
Soil Science
Kudakwashe Meki, Qiang Liu, Shuai Wu, Yanfei Yuan
Summary: Soil degradation through salinization and pollution by toxic compounds is a significant threat to coastal wetlands. Bioremediation using plants, biochar, and microbes is a cost-effective option for remediation. Biochar enhances plant/microbe growth and can effectively remediate petroleum hydrocarbons (PHCs) in salinized soils. Plant-microbe interactions mediated rhizodegradation and microbial respiration is more active in biochar amendments. The use of biochar, plants, and microbes is recommended for sustainable and practical remediation of PHCs and salinization.
Article
Biotechnology & Applied Microbiology
Sofia Houida, Lamia Yakkou, Leyla Okyay Kaya, Serdar Bilen, Mohamed Raouane, Abdellatif El Harti, Souad Amghar
Summary: The aim of this study was to evaluate the impact of metal-tolerant plant growth-promoting bacteria (PGPB) on the growth of Spinacia oleracea under heavy metal stress and assess their potential for enhancing phytoremediation capabilities. The results showed that soil inoculation with bacterial isolates remarkably improved plant growth while increasing soil enzyme activity and NPK content. Our study confirms that earthworms are a reservoir of multi-beneficial bacteria that can effectively improve phytoremediation efficiency and mitigate the toxic effects of heavy metals on plant growth.
INTERNATIONAL MICROBIOLOGY
(2023)
Article
Plant Sciences
Yong Zhang, Shangjun Zhao, Sijia Liu, Jing Peng, Hanchao Zhang, Qiming Zhao, Luqing Zheng, Yahua Chen, Zhenguo Shen, Xihui Xu, Chen Chen
Summary: This study demonstrates that the symbiosis with a heavy metal-tolerant bacterium PGP15 can enhance the accumulation of cadmium in the hyperaccumulator Solanum nigrum while reducing cadmium-induced stress. The genome analysis of PGP15 provides insights into the mechanisms underlying plant growth promotion by heavy metal-tolerant bacteria.
FRONTIERS IN PLANT SCIENCE
(2022)
Article
Microbiology
Angelika Fiodor, Nur Ajijah, Lukasz Dziewit, Kumar Pranaw
Summary: Seed priming methods can improve seed germination and seedling vigor, and also help plants withstand abiotic stress. Among these methods, biopriming stands out as it not only provides the aforementioned benefits but also manages biotic stress. Biopriming using beneficial microorganisms, especially plant growth-promoting bacteria, is an environmentally-friendly alternative to chemical fungicides and has been proven effective in various crops worldwide. In this study, bacterial strains were isolated from different sources and screened based on their solubilization ability of potassium, phosphorus, and production of the plant growth hormone indole acetic acid. The most efficient bacteria were identified and further examined for their additional plant growth-promoting properties. Carrot seed germination assays were conducted with the selected potent isolates, and several isolates showed positive effects on germination. The study emphasizes the role of auxins in seed germination and suggests that phosphate solubilization ability may also play a role.
FRONTIERS IN MICROBIOLOGY
(2023)
Review
Plant Sciences
Mehtab Muhammad Aslam, Eyalira Jacob Okal, Muhammad Waseem
Summary: Heavy metal contamination in agricultural soils poses risks to the environment and food chain. Cadmium is harmful to human health and crop growth, limiting plant survival in polluted soils. Therefore, a comprehensive review on environmentally friendly management practices for Cd-resilience crops is urgently needed.
PLANT GROWTH REGULATION
(2023)
Review
Plant Sciences
Vikram Poria, Klaudia Debiec-Andrzejewska, Angelika Fiodor, Marharyta Lyzohub, Nur Ajijah, Surender Singh, Kumar Pranaw
Summary: Marginal land refers to land that has little to no utility for agriculture or industry, commonly found on the edge of deserts or arid regions. Plants and microorganisms are used to enhance the soil quality of marginal land, offering a low-cost solution for soil fertility restoration. Plant growth-promoting bacteria play a crucial role in promoting plant development and soil bioremediation. By using economically significant plants and plant growth-promoting bacteria, the soil fertility of marginal land can be improved, leading to the reclamation of general agriculture and restoration of native vegetation.
FRONTIERS IN PLANT SCIENCE
(2022)
Article
Engineering, Environmental
Reni Ustiatik, Yulia Nuraini, Suharjono Suharjono, Paramsothy Jeyakumar, Christopher W. N. Anderson, Eko Handayanto
Summary: Mercury (Hg) is a toxic element that poses serious environmental problems. This study isolated Hg-resistant endophytic bacteria from indigenous grasses in Hg-contaminated soils, with two isolates identified as potential inoculants for phytoremediation of Hg-contaminated soil in future studies. From the 13 bacterial isolates tested, Jeotgalicoccus huakuii and Bacillus amyloliquefaciens showed the greatest potential as inoculants.
BIOREMEDIATION JOURNAL
(2022)
Article
Environmental Sciences
L. Benedict Bruno, Vadivel Anbuganesan, Chinnannan Karthik, Tripti, Adarsh Kumar, J. Rajesh Banu, Helena Freitas, Mani Rajkumar
Summary: The study showed that the PGPB strain TCU11 can enhance the growth and stress tolerance of maize under multi-metal contamination and increased atmospheric temperature stress, as well as promote the accumulation of metals in plant tissues.
JOURNAL OF ENVIRONMENTAL MANAGEMENT
(2021)
Article
Chemistry, Applied
Anum Naseer, Saiqa Andleeb, Abdul Basit, Wajid Arshad Abbasi, Samina Ejaz, Shaukat Ali, Nazish Mazhar Ali
Summary: This study isolated and identified heavy metals tolerant bacteria from earthworms for the first time, evaluating their potential for bioremediation and plant growth promotion. The identified bacteria showed efficient biosorption of lead, cadmium, and chromium, along with plant growth-promoting traits.
JOURNAL OF OLEO SCIENCE
(2022)
Article
Chemistry, Applied
Anum Naseer, Saiqa Andleeb, Abdul Basit, Wajid Arshad Abbasi, Samina Ejaz, Shaukat Ali, Nazish Mazhar Ali
Summary: This study isolated and identified heavy metals-tolerated bacteria from the gut of Eisenia fetida for the first time. The isolated bacteria showed potential bacto-remediation capabilities and plant growth promoting traits. The findings suggest that these vermi-bacteria can be used as potential agents for bioremediation in heavy metals pollution and as microbial biofertilizers to enhance crop production in polluted areas.
JOURNAL OF OLEO SCIENCE
(2022)
Article
Biotechnology & Applied Microbiology
Wei Tian, Le Li, Xiao Xiao, Huili Wu, Yulong Wang, Zhaoyang Hu, Nahmina Begum, Yiping Zou, Laiqing Lou, Ming Chang, Qingsheng Cai
Summary: This study identified a novel plant growth-promoting bacteria strain Tm02, which promotes rice growth and reduces Cd concentration in rice grain under Cd-contaminated conditions. By using this bacterial strain, the tolerance of rice to Cd pollution can be improved, potentially enhancing yield in Cd-contaminated paddy fields.
JOURNAL OF APPLIED MICROBIOLOGY
(2022)
Article
Soil Science
Ana M. S. Paulo, Nidia S. Caetano, Paula M. L. Castro, Ana P. G. C. Marques
Summary: This study aimed to investigate the feasibility of using phytoremediation to remove heavy metal pollutants from industrial soil. The results showed that sunflower, in combination with selected rhizosphere microbiota, was able to remove a certain amount of zinc and cadmium from the soil, while also producing biomass. The applied microbiota also showed good survival during the remediation process. This study provides valuable insights for the application of phytoremediation in real contaminated soil.
Article
Plant Sciences
Elena Kuzina, Gulnaz Rafikova, Lidiya Vysotskaya, Tatyana Arkhipova, Margarita Bakaeva, Dar'ya Chetverikova, Guzel Kudoyarova, Tatyana Korshunova, Sergey Chetverikov
Summary: Recent studies have shown that the combined action of petroleum degrading bacteria in oil-contaminated soils can promote plant growth and improve biochemical characteristics, reducing the negative effects of hydrocarbons on plants.
Article
Soil Science
G. F. Rafikova, E. Kuzina, T. Yu Korshunova
Summary: The comprehensive analysis of the effects of oil, lead, and their combinations on leached chernozem and the use of microorganisms for bioremediation was conducted in a model experiment. The study found that all types of pollutants increased soil phytotoxicity, but the application of hydrocarbon-oxidizing bacterial strains reduced phytotoxicity and increased seed germination. Lead addition reduced hydrocarbon decomposition, while bacterial treatment enhanced degradation. The presence of lead and oil also affected soil microorganisms and enzymatic activity. Bioaugmentation showed promising results in reducing phytotoxicity and restoring enzymatic activity.
EURASIAN SOIL SCIENCE
(2022)
Article
Microbiology
Arina Feoktistova, Margarita Bakaeva, Maxim Timergalin, Darya Chetverikova, Aliya Kendjieva, Timur Rameev, Gaisar Hkudaygulov, Aleksey Nazarov, Guzel Kudoyarova, Sergey Chetverikov
Summary: Humic substances can promote the growth of rhizosphere bacteria and have significant positive effects on plant growth when combined with bacteria. Although rhizosphere bacteria have limited ability to utilize humic substances as a sole source of nutrition, they can enhance bacterial growth rates and increase bacterial colonization of plant roots.
Article
Plant Sciences
Elena Kuzina, Svetlana Mukhamatdyarova, Yuliyana Sharipova, Ainur Makhmutov, Larisa Belan, Tatyana Korshunova
Summary: The modern approach to the creation of biological products to stimulate plant growth is based on the study of specific inter-bacterial interactions. This study found that the introduction of strains of the genus Pseudomonas has a positive impact on the germination, growth, and development of leguminous plants, as well as the indigenous microbial community.
Article
Plant Sciences
Margarita Bakaeva, Sergey Chetverikov, Maksim Timergalin, Arina Feoktistova, Timur Rameev, Dar'ya Chetverikova, Aliya Kenjieva, Sergey Starikov, Danil Sharipov, Gaisar Hkudaygulov
Summary: The reaction of plants to simultaneous stress action and treatment with biological stimulants has been poorly studied. This study investigated the growth and yield of bread wheat (Triticum aestivum L.) under stress conditions and the effects of spraying with herbicide and growth-stimulating bacterium. The findings show that spraying with Chistalan reduced plant growth and inhibited root growth, while treatment with Pseudomonas protegens DA1.2 increased the IAA/ABA ratio and prevented root growth inhibition caused by the herbicide. Bacterization also improved water balance and increased grain yield in wheat plants under arid conditions.
Article
Biotechnology & Applied Microbiology
A. N. Lachinov, A. A. Lachinov, D. D. Karamov, A. F. Galiev, E. V. Kuzina, T. Yu. Korshunova
Summary: A study was conducted to investigate the response of a sensor element based on polydiphenylenephthalide to changes in the air composition during the cultivation of Enterobacter asburiae UOM 3 bacteria. The resistance of the sensor element was measured to volatile organic compounds released by bacterial cells. The results showed a correlation between the bacteria count and the resistance change of the sensor element, indicating the presence of microorganism waste products.
APPLIED BIOCHEMISTRY AND MICROBIOLOGY
(2023)
Article
Green & Sustainable Science & Technology
Aleksey Nazarov, Sergey Chetverikov, Darya Chetverikova, Iren Tuktarova, Ruslan Ivanov, Ruslan Urazgildin, Ivan Garankov, Guzel Kudoyarova
Summary: Preparations based on bacteria and humic substances have been found to effectively stimulate the growth of tree seedlings, particularly poplar and pine. Treatment with these substances enhances photosynthesis rate and carbon storage, and improves the quality of transplanted plants, which is crucial for successful reforestation.
Article
Microbiology
Arina Feoktistova, Maxim Timergalin, Sergey Chetverikov, Aleksey Nazarov, Guzel Kudoyarova
Summary: The search for methods to increase plant productivity under drought conditions is essential due to widespread soil moisture deficiency and resulting crop losses. This study aimed to investigate the effects of plant growth-promoting bacteria and humic substances on wheat plants grown in water-deficit conditions in a laboratory. Results showed that treating wheat plants with Pseudomonas plecoglossicida 2,4-D and humic substances led to increased plant mass accumulation. Stimulation of plant growth was linked to enhanced root growth, nitrogen balance, chlorophyll, and flavonoid concentrations in treated plants. The combination treatment of bacteria and humic substances showed higher efficiency compared to individual treatments, possibly due to their additive effect on hormonal balance.
Article
Agronomy
Tatyana Korshunova, Elena Kuzina, Svetlana Mukhamatdyarova, Yuliyana Sharipova, Milyausha Iskuzhina
Summary: Large areas of agricultural land are contaminated with chemical plant-protection products and oil pollution. Bioremediation of oil-contaminated agricultural soils is hindered by additional pollutants such as herbicides. In this study, seven strains of Pseudomonas bacteria were isolated and identified, showing differences in oil biodegradation ability (32.7-77.3%). These strains exhibited resistance to herbicides, phosphate-solubilizing and nitrogen-fixing activity, and produced indolyl-3-acetic acid. They stimulated the growth of barley and clover in oil-contaminated soil, as well as the growth of clover in herbicide-contaminated soil. These bacteria have the potential to be used in the bioremediation of oil-contaminated agricultural soils.
Article
Soil Science
E. V. Kuzina, G. F. Rafikova, S. R. Mukhamatdyarova, Yu. Yu. Sharipova, T. Yu. Korshunova
Summary: Soil contamination with oil and salt can increase the phytotoxicity of the soil and suppress soil enzyme activity. However, the use of halotolerant hydrocarbon-oxidizing bacteria can mitigate the toxicity of oil-containing soil to plants and enhance the decomposition of hydrocarbons. Actinomycetes are the most sensitive to the presence of oil and/or salt, and their numbers decrease significantly in contaminated soils. Bacterization can increase the catalase activity, restore the urease activity, and intensify the invertase activity in oil-containing soil under the combined effect of pollutants.
EURASIAN SOIL SCIENCE
(2023)
Article
Biochemistry & Molecular Biology
Lidiya Vysotskaya, Elena Martynenko, Alena Ryabova, Ludmila Kuzmina, Sergey Starikov, Sergey Chetverikov, Elvina Gaffarova, Guzel Kudoyarova
Summary: High-density planting can increase crop productivity, but the growth of plants is inhibited by competition with neighbors and the accumulation of abscisic acid (ABA). This study found that bacteria capable of degrading ABA can reduce the negative effect of competition on plant growth by reducing the concentration of ABA. The results suggest the potential of using bacteria to degrade ABA and alleviate the negative impact of competition on plant productivity.