Changes in the bacterial communities in chromium-contaminated soils
IntroductionHexavalent chromium or Cr(VI) is essential to various industries, such as leather manufacturing and stainless steel production. Given that inevitable leakage from industries pollutes the soil and thereby affects the soil environment. Microbial communities could improve the quality of the...
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| Format: | Article |
| Language: | English |
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Frontiers Media S.A.
2023-01-01
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| Series: | Frontiers in Veterinary Science |
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| Online Access: | https://www.frontiersin.org/articles/10.3389/fvets.2022.1066048/full |
| _version_ | 1797961876045299712 |
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| author | Yiran Zhu Kaimin Song Guodong Cheng Huiling Xu Xiaozhou Wang Changxi Qi Pu Zhang Yongxia Liu Jianzhu Liu |
| author_facet | Yiran Zhu Kaimin Song Guodong Cheng Huiling Xu Xiaozhou Wang Changxi Qi Pu Zhang Yongxia Liu Jianzhu Liu |
| author_sort | Yiran Zhu |
| collection | DOAJ |
| description | IntroductionHexavalent chromium or Cr(VI) is essential to various industries, such as leather manufacturing and stainless steel production. Given that inevitable leakage from industries pollutes the soil and thereby affects the soil environment. Microbial communities could improve the quality of the soil. Abundant bacterial communities would significantly enhance the soil richness and resist external pressure, benefiting agriculture. But the pollution of heavy metal broke the balance and decrease the abundance of bacterial communities, which weak the self-adjust ability of soil. This study aimed to explore changes in the diversity of soil bacterial communities and to identify the influences of soil bacterial communities on enzymes in soil polluted by Cr(VI).MethodsThe target soils were sampled quickly and aseptically. Their chromium content was detected through inductively coupled plasma-mass spectrometry, and bacterial microbiome communities were explored through MiSeq high-throughput sequencing. Then, the content of nitrite reductase and catalases were investigated through enzyme-linked immunosorbent assay (ELISA).ResultsChromium content in polluted soils was higher than that in the control soils at all depths. Sobs, Chao1, Ace, and Shannon diversity estimators in the control were higher, whereas Simpson's diversity estimators in the control soils were lower than those of contaminated samples at all depths. Contaminants affected the composition of the bacterial community. The soil microbial species were relatively single and inhomogeneous in the polluted soils. The bacterial phyla in polluted and controlled soils include Proteobacteria, Actinobacteria, Chloroflexi, and Acidobacteria, which differ markedly in abundance.DiscussionThe results of these observations provide insights into the ecotoxicological effects of Cr(VI) exposure to soil microorganisms. To sum up these results are critical for evaluating the stabilized state of microbial community structures, contributing to the assessment of the potential risk of metal accumulation in soils. |
| first_indexed | 2024-04-11T01:05:46Z |
| format | Article |
| id | doaj.art-d4a5d58c7b79469793ab176df004534c |
| institution | Directory Open Access Journal |
| issn | 2297-1769 |
| language | English |
| last_indexed | 2024-04-11T01:05:46Z |
| publishDate | 2023-01-01 |
| publisher | Frontiers Media S.A. |
| record_format | Article |
| series | Frontiers in Veterinary Science |
| spelling | doaj.art-d4a5d58c7b79469793ab176df004534c2023-01-04T13:26:40ZengFrontiers Media S.A.Frontiers in Veterinary Science2297-17692023-01-01910.3389/fvets.2022.10660481066048Changes in the bacterial communities in chromium-contaminated soilsYiran Zhu0Kaimin Song1Guodong Cheng2Huiling Xu3Xiaozhou Wang4Changxi Qi5Pu Zhang6Yongxia Liu7Jianzhu Liu8College of Veterinary Medicine, Shandong Agricultural University, Tai'an, Shandong, ChinaResearch Center for Animal Disease Control Engineering, Shandong Agricultural University, Tai'an, Shandong, ChinaCollege of Veterinary Medicine, Shandong Agricultural University, Tai'an, Shandong, ChinaCollege of Veterinary Medicine, Shandong Agricultural University, Tai'an, Shandong, ChinaResearch Center for Animal Disease Control Engineering, Shandong Agricultural University, Tai'an, Shandong, ChinaCollege of Veterinary Medicine, Shandong Agricultural University, Tai'an, Shandong, ChinaThe Affiliated Tai'an City Central Hospital of Qingdao University, Tai'an, Shandong, ChinaResearch Center for Animal Disease Control Engineering, Shandong Agricultural University, Tai'an, Shandong, ChinaCollege of Veterinary Medicine, Shandong Agricultural University, Tai'an, Shandong, ChinaIntroductionHexavalent chromium or Cr(VI) is essential to various industries, such as leather manufacturing and stainless steel production. Given that inevitable leakage from industries pollutes the soil and thereby affects the soil environment. Microbial communities could improve the quality of the soil. Abundant bacterial communities would significantly enhance the soil richness and resist external pressure, benefiting agriculture. But the pollution of heavy metal broke the balance and decrease the abundance of bacterial communities, which weak the self-adjust ability of soil. This study aimed to explore changes in the diversity of soil bacterial communities and to identify the influences of soil bacterial communities on enzymes in soil polluted by Cr(VI).MethodsThe target soils were sampled quickly and aseptically. Their chromium content was detected through inductively coupled plasma-mass spectrometry, and bacterial microbiome communities were explored through MiSeq high-throughput sequencing. Then, the content of nitrite reductase and catalases were investigated through enzyme-linked immunosorbent assay (ELISA).ResultsChromium content in polluted soils was higher than that in the control soils at all depths. Sobs, Chao1, Ace, and Shannon diversity estimators in the control were higher, whereas Simpson's diversity estimators in the control soils were lower than those of contaminated samples at all depths. Contaminants affected the composition of the bacterial community. The soil microbial species were relatively single and inhomogeneous in the polluted soils. The bacterial phyla in polluted and controlled soils include Proteobacteria, Actinobacteria, Chloroflexi, and Acidobacteria, which differ markedly in abundance.DiscussionThe results of these observations provide insights into the ecotoxicological effects of Cr(VI) exposure to soil microorganisms. To sum up these results are critical for evaluating the stabilized state of microbial community structures, contributing to the assessment of the potential risk of metal accumulation in soils.https://www.frontiersin.org/articles/10.3389/fvets.2022.1066048/fullmicrobiomechromiummicrobial diversity and structuresoil enzymesMiSeq high-throughput sequencing |
| spellingShingle | Yiran Zhu Kaimin Song Guodong Cheng Huiling Xu Xiaozhou Wang Changxi Qi Pu Zhang Yongxia Liu Jianzhu Liu Changes in the bacterial communities in chromium-contaminated soils Frontiers in Veterinary Science microbiome chromium microbial diversity and structure soil enzymes MiSeq high-throughput sequencing |
| title | Changes in the bacterial communities in chromium-contaminated soils |
| title_full | Changes in the bacterial communities in chromium-contaminated soils |
| title_fullStr | Changes in the bacterial communities in chromium-contaminated soils |
| title_full_unstemmed | Changes in the bacterial communities in chromium-contaminated soils |
| title_short | Changes in the bacterial communities in chromium-contaminated soils |
| title_sort | changes in the bacterial communities in chromium contaminated soils |
| topic | microbiome chromium microbial diversity and structure soil enzymes MiSeq high-throughput sequencing |
| url | https://www.frontiersin.org/articles/10.3389/fvets.2022.1066048/full |
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