1
|
Deng B, Luo J, Xu C, Zhang X, Li J, Yuan Q, Cao H. Biotransformation of Pb and As from sewage sludge and food waste by black soldier fly larvae: Migration mechanism of bacterial community and metalloregulatory protein scales. WATER RESEARCH 2024; 254:121405. [PMID: 38447376 DOI: 10.1016/j.watres.2024.121405] [Citation(s) in RCA: 0] [Impact Index Per Article: 0] [Reference Citation Analysis] [Abstract] [Key Words] [MESH Headings] [Track Full Text] [Subscribe] [Scholar Register] [Received: 12/18/2023] [Revised: 01/29/2024] [Accepted: 02/29/2024] [Indexed: 03/08/2024]
Abstract
The accumulation and transformation of lead (Pb) and arsenic (As) during the digestion of sewage sludge (SS) by black soldier fly larvae (BSFL) remain unclear. In this study, we used 16 s rRNA and metagenomic sequencing techniques to investigate the correlation between the microbial community, metalloregulatory proteins (MRPs), and Pb and As migration and transformation. During the 15-day test period, BSFL were able to absorb 34-48 % of Pb and 32-45 % of As into their body. Changes in bacterial community abundance, upregulation of MRPs, and redundancy analysis (RDA) results confirmed that ZntA, EfeO, CadC, ArsR, ArsB, ArsD, and ArsA play major roles in the adsorption and stabilization of Pb and As, which is mainly due to the high contribution rates of Lactobacillus (48-59 %) and Enterococcus (21-23 %). Owing to the redox reaction, the regulation of the MRPs, and the change in pH, the Pb and As in the BSFL residue were mainly the residual fraction (F4). The RDA results showed that Lactobacillus and L.koreensis could significantly (P < 0.01) reduce the reducible fraction (F2) and F4 of Pb, whereas Firmicutes and L.fermentum can significantly (P < 0.05) promote the transformation of As to F4, thus realizing the passivation Pb and As. This study contributes to the understanding of Pb and As in SS adsorbed by BSFL and provides important insights into the factors that arise during the BSFL-mediated migration of Pb and As.
Collapse
Affiliation(s)
- Bo Deng
- Key Laboratory of Smart Farming for Agricultural Animals, College of Engineering, Huazhong Agricultural University, No. 1, Shizishan Street, Hongshan District, Wuhan 430070, PR China; Key Laboratory of Aquaculture Facilities Engineering, Ministry of Agriculture and Rural Affairs, Wuhan 430070, China; Technology & Equipment Center for carbon Neutrality in Agriculture, Huazhong Agricultural University, No. 1, Shizishan Street, Hongshan District, Wuhan 430070, PR China
| | - Junlong Luo
- Key Laboratory of Smart Farming for Agricultural Animals, College of Engineering, Huazhong Agricultural University, No. 1, Shizishan Street, Hongshan District, Wuhan 430070, PR China; Key Laboratory of Aquaculture Facilities Engineering, Ministry of Agriculture and Rural Affairs, Wuhan 430070, China; Technology & Equipment Center for carbon Neutrality in Agriculture, Huazhong Agricultural University, No. 1, Shizishan Street, Hongshan District, Wuhan 430070, PR China
| | - Chao Xu
- Key Laboratory of Smart Farming for Agricultural Animals, College of Engineering, Huazhong Agricultural University, No. 1, Shizishan Street, Hongshan District, Wuhan 430070, PR China; Key Laboratory of Aquaculture Facilities Engineering, Ministry of Agriculture and Rural Affairs, Wuhan 430070, China; Technology & Equipment Center for carbon Neutrality in Agriculture, Huazhong Agricultural University, No. 1, Shizishan Street, Hongshan District, Wuhan 430070, PR China
| | - Xin Zhang
- Key Laboratory of Smart Farming for Agricultural Animals, College of Engineering, Huazhong Agricultural University, No. 1, Shizishan Street, Hongshan District, Wuhan 430070, PR China; Key Laboratory of Aquaculture Facilities Engineering, Ministry of Agriculture and Rural Affairs, Wuhan 430070, China; Technology & Equipment Center for carbon Neutrality in Agriculture, Huazhong Agricultural University, No. 1, Shizishan Street, Hongshan District, Wuhan 430070, PR China
| | - Jun Li
- Key Laboratory of Smart Farming for Agricultural Animals, College of Engineering, Huazhong Agricultural University, No. 1, Shizishan Street, Hongshan District, Wuhan 430070, PR China; Key Laboratory of Aquaculture Facilities Engineering, Ministry of Agriculture and Rural Affairs, Wuhan 430070, China; Technology & Equipment Center for carbon Neutrality in Agriculture, Huazhong Agricultural University, No. 1, Shizishan Street, Hongshan District, Wuhan 430070, PR China
| | - Qiaoxia Yuan
- Key Laboratory of Smart Farming for Agricultural Animals, College of Engineering, Huazhong Agricultural University, No. 1, Shizishan Street, Hongshan District, Wuhan 430070, PR China; Key Laboratory of Aquaculture Facilities Engineering, Ministry of Agriculture and Rural Affairs, Wuhan 430070, China; Technology & Equipment Center for carbon Neutrality in Agriculture, Huazhong Agricultural University, No. 1, Shizishan Street, Hongshan District, Wuhan 430070, PR China.
| | - Hongliang Cao
- Key Laboratory of Smart Farming for Agricultural Animals, College of Engineering, Huazhong Agricultural University, No. 1, Shizishan Street, Hongshan District, Wuhan 430070, PR China; Key Laboratory of Aquaculture Facilities Engineering, Ministry of Agriculture and Rural Affairs, Wuhan 430070, China; Technology & Equipment Center for carbon Neutrality in Agriculture, Huazhong Agricultural University, No. 1, Shizishan Street, Hongshan District, Wuhan 430070, PR China.
| |
Collapse
|
2
|
Olaya‐Abril A, Biełło K, Rodríguez‐Caballero G, Cabello P, Sáez LP, Moreno‐Vivián C, Luque‐Almagro VM, Roldán MD. Bacterial tolerance and detoxification of cyanide, arsenic and heavy metals: Holistic approaches applied to bioremediation of industrial complex wastes. Microb Biotechnol 2024; 17:e14399. [PMID: 38206076 PMCID: PMC10832572 DOI: 10.1111/1751-7915.14399] [Citation(s) in RCA: 0] [Impact Index Per Article: 0] [Reference Citation Analysis] [Abstract] [MESH Headings] [Grants] [Track Full Text] [Journal Information] [Subscribe] [Scholar Register] [Received: 07/11/2023] [Revised: 12/19/2023] [Accepted: 12/22/2023] [Indexed: 01/12/2024] Open
Abstract
Cyanide is a highly toxic compound that is found in wastewaters generated from different industrial activities, such as mining or jewellery. These residues usually contain high concentrations of other toxic pollutants like arsenic and heavy metals that may form different complexes with cyanide. To develop bioremediation strategies, it is necessary to know the metabolic processes involved in the tolerance and detoxification of these pollutants, but most of the current studies are focused on the characterization of the microbial responses to each one of these environmental hazards individually, and the effect of co-contaminated wastes on microbial metabolism has been hardly addressed. This work summarizes the main strategies developed by bacteria to alleviate the effects of cyanide, arsenic and heavy metals, analysing interactions among these toxic chemicals. Additionally, it is discussed the role of systems biology and synthetic biology as tools for the development of bioremediation strategies of complex industrial wastes and co-contaminated sites, emphasizing the importance and progress derived from meta-omic studies.
Collapse
Affiliation(s)
- Alfonso Olaya‐Abril
- Departamento de Bioquímica y Biología Molecular, Edificio Severo Ochoa, Campus de RabanalesUniversidad de CórdobaCórdobaSpain
| | - Karolina Biełło
- Departamento de Bioquímica y Biología Molecular, Edificio Severo Ochoa, Campus de RabanalesUniversidad de CórdobaCórdobaSpain
| | - Gema Rodríguez‐Caballero
- Departamento de Bioquímica y Biología Molecular, Edificio Severo Ochoa, Campus de RabanalesUniversidad de CórdobaCórdobaSpain
| | - Purificación Cabello
- Departamento de Botánica, Ecología y Fisiología Vegetal, Edificio Celestino Mutis, Campus de RabanalesUniversidad de CórdobaCórdobaSpain
| | - Lara P. Sáez
- Departamento de Bioquímica y Biología Molecular, Edificio Severo Ochoa, Campus de RabanalesUniversidad de CórdobaCórdobaSpain
| | - Conrado Moreno‐Vivián
- Departamento de Bioquímica y Biología Molecular, Edificio Severo Ochoa, Campus de RabanalesUniversidad de CórdobaCórdobaSpain
| | - Víctor Manuel Luque‐Almagro
- Departamento de Bioquímica y Biología Molecular, Edificio Severo Ochoa, Campus de RabanalesUniversidad de CórdobaCórdobaSpain
| | - María Dolores Roldán
- Departamento de Bioquímica y Biología Molecular, Edificio Severo Ochoa, Campus de RabanalesUniversidad de CórdobaCórdobaSpain
| |
Collapse
|