Use of plant growth-promoting bacteria to facilitate phytoremediation DOI Creative Commons
Elisa Gamalero, Bernard R. Glick

AIMS Microbiology, Journal Year: 2024, Volume and Issue: 10(2), P. 415 - 448

Published: Jan. 1, 2024

<abstract> <p>Here, phytoremediation studies of toxic metal and organic compounds using plants augmented with plant growth-promoting bacteria, published in the past few years, were summarized reviewed. These complemented extended many earlier this area research. The here employed a wide range non-agricultural including various grasses indigenous to regions world. bacteria used different known mechanisms promote growth presence metallic and/or toxicants thereby improve ability most plants. Both rhizosphere endophyte PGPB strains have been found be effective within schemes. Consortia consisting several often more than individual assisting environmental contaminants.</p> <img src="https://www.aimspress.com/aimspress-data/aimsmicro/2024/2/PIC/microbiol-10-02-021-g005.jpg"/> </abstract>

Language: Английский

Phosphate-Solubilizing Bacteria: Advances in Their Physiology, Molecular Mechanisms and Microbial Community Effects DOI Creative Commons
Lin Pan, Baiyan Cai

Microorganisms, Journal Year: 2023, Volume and Issue: 11(12), P. 2904 - 2904

Published: Dec. 1, 2023

Phosphorus is an essential nutrient for all life on earth and has a major impact plant growth crop yield. The forms of phosphorus that can be directly absorbed utilized by plants are mainly HPO42- H2PO4-, which known as usable phosphorus. At present, the total content soils worldwide 400-1000 mg/kg, only 1.00-2.50% plant-available, seriously affects development agriculture, resulting in high level scarcity available Traditional methods applying fertilizer cannot address deficiency problems; they harm environment ore material nonrenewable natural resource. Therefore, it imperative to find alternative environmentally compatible economically viable strategies scarcity. Phosphorus-solubilizing bacteria (PSB) convert insoluble soil into plants, thus improving uptake utilization plants. However, there no clear systematic report mechanism action PSB. this paper summarizes discovery process, species, distribution PSB, focusing physiological mechanisms outlining processes acidolysis, enzymolysis, chelation complexation reactions related genes regulating PSB acidolysis enzymatic well phosphate transport molecular direction its pathway examined. effects structure abundance microbial communities also described, illustrating how interact with microorganisms indirectly increase amount soil. And three perspectives considered further exploring utilizing synergistic multi-omics approach, PSB-related regulatory different levels investigating application fungicide. This aims provide theoretical support providing optimal management elemental future.

Language: Английский

Citations

57
Trends in phytoremediation of heavy metals-contaminated soils: A Web of science and CiteSpace bibliometric analysis DOI
Kailu Zhang,

Fan Liu,

Haixiang Zhang

et al.

Chemosphere, Journal Year: 2024, Volume and Issue: 352, P. 141293 - 141293

Published: Jan. 25, 2024

Language: Английский

Citations

21
High-throughput 16S rRNA gene-based amplicon sequencing reveals the functional divergence of halophilic bacterial communities in the Suaeda salsa root compartments on the eastern coast of China DOI

Huifang Jiang,

Charles Obinwanne Okoye, Xunfeng Chen

et al.

The Science of The Total Environment, Journal Year: 2024, Volume and Issue: 942, P. 173775 - 173775

Published: June 5, 2024

Language: Английский

Citations

11
Consortium of Phosphorus-Solubilizing Bacteria Promotes Maize Growth and Changes the Microbial Community Composition of Rhizosphere Soil DOI Creative Commons
Dan Luo,

Ju Shi,

Mei Li

et al.

Agronomy, Journal Year: 2024, Volume and Issue: 14(7), P. 1535 - 1535

Published: July 15, 2024

Phosphorus deficiency severely limits crop yields and hinders sustainable agricultural development. Phosphate-solubilizing bacteria (PSB) are beneficial for growth because they enhance the uptake utilization of phosphorus. This study explored phosphorus-solubilizing, IAA-producing, nitrogen-fixing, potassium-solubilizing, siderophore-producing abilities three bacterial strains (Pantoea sp. J-1, Burkholderia cepacia Z-7, Acinetobacter baumannii B-6) screened from maize rhizosphere. A pot experiment was also conducted to explore role PSB in maize. Finally, effects on physicochemical properties, enzyme activities, microbial community structure rhizosphere soil were analyzed. The results showed that strain Z-7 had strongest phosphorus solubilization, nitrogen fixation, potassium siderophore production, while J-1 exhibited highest yield IAA. application promoted plants different extents. Among treatments, mixed treatment (J-1 + most potent promotion effect, consortium significantly enhanced activity phosphatase. Soil pH, total (TP), (TK), available (AP), NH4+-N, NO3−-N key factors plants. In addition, altered soil, relative abundance Proteobacteria increased by 16.07–69.10% compared control. These have obvious growth-promoting abilities, with potential productivity as excellent candidate development biological fertilizers.

Language: Английский

Citations

10
Utilization of halophytes in saline agriculture and restoration of contaminated salinized soils from genes to ecosystem: Suaeda salsa as an example DOI
Chenyang Li, Rui He,

Chang Yan Tian

et al.

Marine Pollution Bulletin, Journal Year: 2023, Volume and Issue: 197, P. 115728 - 115728

Published: Oct. 31, 2023

Language: Английский

Citations

20
Plant growth promoting rhizobacteria induced metal and salt stress tolerance in Brassica juncea through ion homeostasis DOI Creative Commons
Umar Daraz, Iftikhar Ahmad, Qu-Sheng Li

et al.

Ecotoxicology and Environmental Safety, Journal Year: 2023, Volume and Issue: 267, P. 115657 - 115657

Published: Nov. 1, 2023

Soil heavy metal contamination and salinity constitute a major environmental problem worldwide. The affected area impact of these problems are increasing day by day; therefore, it is imperative to restore their potential using environmentally friendly technology. Plant growth-promoting rhizobacteria (PGPR) provides better option in this context. Thirty-seven bacteria were isolated from the rhizosphere maize cultivated metal- salt-affected soils. Some selected bacterial strains grew well under wide range pH (4−10), salt (5–50 g/L), Cd (50–1000 mg/L) stress. Three strains, Exiguobacterium aestuarii (UM1), Bacillus cereus (UM8), megaterium (UM35), because robust growth high tolerance both stress conditions. UM1, UM8, UM35 showed P-solubilization, whereas UM8 exhibited 1-aminocyclopropane-1-carboxylate deaminase activity indole acetic acid (IAA) production, respectively. inoculated on Brassica juncea plants soils due above PGP activities tolerance. Plants with B. significantly (p < 0.05) increased shoot fresh weight (17 ± 1.17–29 0.88 g/plant), dry (2.50 0.03–4.40 0.32 root (7.30 0.58–13.30 0.58 (0.80 0.04–2.00 0.01 K contents (62.76 1.80–105.40 1.15 mg/kg dwt) normal stressful strain decreased Na+ Cd++ uptake single dual Both E. cereus, efficiently reduced translocation bioaccumulation shoot. Bacterial inoculation improved K+ Ca++, while restricted shoots indicated mitigate stresses through ion homeostasis.

Language: Английский

Citations

17
A systematic discussion and comparison of the construction methods of synthetic microbial community DOI Creative Commons
Chenglong Li, Yanfeng Han,

Xiao Zou

et al.

Synthetic and Systems Biotechnology, Journal Year: 2024, Volume and Issue: 9(4), P. 775 - 783

Published: June 20, 2024

Synthetic microbial community has widely concerned in the fields of agriculture, food and environment over past few years. However, there is little consensus on method to synthetic from construction functional verification. Here, we review concept, characteristics, history applications community, summarizing several methods for construction, such as isolation culture, core microbiome mining, automated design, gene editing. In addition, also systematically summarized design concepts, technological thresholds, applicable scenarios various methods, highlighted their advantages limitations. Ultimately, this provides four efficient, detailed, easy-to-understand -follow steps with major implications agricultural practices, production, environmental governance.

Language: Английский

Citations

7
Microbial communities outperform extracellular polymeric substances in the reduction of hexavalent chromium by anaerobic granular sludge DOI Creative Commons

Yun-Yun Sun,

Qu-Sheng Li, Huimin Jiang

et al.

Environmental Technology & Innovation, Journal Year: 2024, Volume and Issue: 34, P. 103616 - 103616

Published: March 27, 2024

The reduction of hexavalent chromium [Cr(VI)] by microbiota agents is a potential method for ecological remediation in heavily contaminated soil. This study investigated the contribution microbial community and extracellular polymeric substances (EPS) to reduce Cr(VI) using lab-cultured anaerobic granular sludge (AGS). AGS demonstrated an impressive efficiency 99.3% soil, operating within initial concentration range 500-3000 mg/kg. distribution typical electron acceptors, e.g., SO42-, NO3-, Fe3+, had negligible influence on reduction. EPS accounted only 2.1% total reduction, implying that driven was primarily caused direct effect microbiota. High-throughput sequencing analysis confirmed increasing trend relative abundance Cr bacteria (Sphingopyxis: 0.40% 5.54%, Thermonas: 0.41% 5.70%, Edaphobaculum: 0.35% 6.64%, etc.), stability (0.716 4.114) co-occurrence networks significantly promoted end experiment. Materials characterization indicated successful trivalent [Cr(III)] formed Cr(OH)3, functional groups, O-H, N-H, -CH, -CH2, likely played vital role Overall, these findings offer insights into technique highly-contaminated soil based interaction network AGS.

Language: Английский

Citations

5
The Promotion of Dark Septate Endophytes on the Performance and Active Ingredients Accumulation of Dendranthema morifolium Under Cd Stress DOI Creative Commons
Meiling Wu, Gen Li,

Simiao Wang

et al.

Agronomy, Journal Year: 2025, Volume and Issue: 15(1), P. 208 - 208

Published: Jan. 16, 2025

Dark septate endophytes (DSE) may facilitate plant growth and stress tolerance in stressful ecosystems. However, little is known about the response of medicinal plants to DSE, especially under heavy metal stress. This study aimed investigate how DSE affects Dendranthema morifolium cadmium (Cd) In this investigation, sterile non-sterile inoculations were carried out evaluate effect three strains on D. stressed with Cd. For root, DSE15 or inoculation resulted enhanced root biomass, volume, Cd content roots, indoleacetic acid (IAA) levels DSE7 significantly roots at 1 5 mg Cd/kg soil. Regarding impact stems leaves, conditions, effectively regulated shoot height, chlorophyll level, superoxide dismutase (SOD) content. Under positively influenced biomass while had no significant them when subjected effects flowers increased flower stress, reduced transfer coefficient Importantly, soil, promoted 1, 5-dicaffeoylquinic by 18.29% 21.70%. The interaction between soil factors revealed that species organic carbon available nitrogen content, These results contribute a better understanding DSE-plant interactions habitats contaminated metals demonstrate potential utility for cultivating plants.

Language: Английский

Citations

0
Deciphering the mechanisms for preferential tolerance of Escherichia coli BL21 to Cd(II) over Cu(II) and Ni(II): A combined physiological, biochemical, and multiomics perspective DOI
Jackson Nkoh Nkoh, Ting Ye, Chenjing Shang

et al.

Ecotoxicology and Environmental Safety, Journal Year: 2025, Volume and Issue: 297, P. 118195 - 118195

Published: April 23, 2025

Language: Английский

Citations

0