1
|
Remenyik J, Csige L, Dávid P, Fauszt P, Szilágyi-Rácz AA, Szőllősi E, Bacsó ZR, Szepsy Jnr I, Molnár K, Rácz C, Fidler G, Kállai Z, Stündl L, Dobos AC, Paholcsek M. Exploring the interplay between the core microbiota, physicochemical factors, agrobiochemical cycles in the soil of the historic tokaj mád wine region. PLoS One 2024; 19:e0300563. [PMID: 38626236 PMCID: PMC11020696 DOI: 10.1371/journal.pone.0300563] [Citation(s) in RCA: 0] [Impact Index Per Article: 0] [Reference Citation Analysis] [Abstract] [MESH Headings] [Track Full Text] [Journal Information] [Subscribe] [Scholar Register] [Received: 07/11/2023] [Accepted: 02/29/2024] [Indexed: 04/18/2024] Open
Abstract
A Hungarian survey of Tokaj-Mád vineyards was conducted. Shotgun metabarcoding was applied to decipher the microbial-terroir. The results of 60 soil samples showed that there were three dominant fungal phyla, Ascomycota 66.36% ± 15.26%, Basidiomycota 18.78% ± 14.90%, Mucoromycota 11.89% ± 8.99%, representing 97% of operational taxonomic units (OTUs). Mutual interactions between microbiota diversity and soil physicochemical parameters were revealed. Principal component analysis showed descriptive clustering patterns of microbial taxonomy and resistance gene profiles in the case of the four historic vineyards (Szent Tamás, Király, Betsek, Nyúlászó). Linear discriminant analysis effect size was performed, revealing pronounced shifts in community taxonomy based on soil physicochemical properties. Twelve clades exhibited the most significant shifts (LDA > 4.0), including the phyla Verrucomicrobia, Bacteroidetes, Chloroflexi, and Rokubacteria, the classes Acidobacteria, Deltaproteobacteria, Gemmatimonadetes, and Betaproteobacteria, the order Sphingomonadales, Hypomicrobiales, as well as the family Sphingomonadaceae and the genus Sphingomonas. Three out of the four historic vineyards exhibited the highest occurrences of the bacterial genus Bradyrhizobium, known for its positive influence on plant development and physiology through the secretion of steroid phytohormones. During ripening, the taxonomical composition of the soil fungal microbiota clustered into distinct groups depending on altitude, differences that were not reflected in bacteriomes. Network analyses were performed to unravel changes in fungal interactiomes when comparing postveraison and preharvest samples. In addition to the arbuscular mycorrhiza Glomeraceae, the families Mycosphaerellacae and Rhyzopodaceae and the class Agaricomycetes were found to have important roles in maintaining soil microbial community resilience. Functional metagenomics showed that the soil Na content stimulated several of the microbiota-related agrobiogeochemical cycles, such as nitrogen and sulphur metabolism; steroid, bisphenol, toluene, dioxin and atrazine degradation and the synthesis of folate.
Collapse
Affiliation(s)
- Judit Remenyik
- Center for Complex Systems and Microbiome Innovations, Faculty of Agricultural and Food Sciences and Environmental Management, University of Debrecen, Debrecen, Hungary
| | - László Csige
- Research Laboratory and Wine Academy of Mad, University of Debrecen, Mád, Hungary
| | - Péter Dávid
- Center for Complex Systems and Microbiome Innovations, Faculty of Agricultural and Food Sciences and Environmental Management, University of Debrecen, Debrecen, Hungary
| | - Péter Fauszt
- Center for Complex Systems and Microbiome Innovations, Faculty of Agricultural and Food Sciences and Environmental Management, University of Debrecen, Debrecen, Hungary
| | - Anna Anita Szilágyi-Rácz
- Center for Complex Systems and Microbiome Innovations, Faculty of Agricultural and Food Sciences and Environmental Management, University of Debrecen, Debrecen, Hungary
| | - Erzsébet Szőllősi
- Center for Complex Systems and Microbiome Innovations, Faculty of Agricultural and Food Sciences and Environmental Management, University of Debrecen, Debrecen, Hungary
| | - Zsófia Réka Bacsó
- Research Laboratory and Wine Academy of Mad, University of Debrecen, Mád, Hungary
| | - István Szepsy Jnr
- Research Laboratory and Wine Academy of Mad, University of Debrecen, Mád, Hungary
| | - Krisztina Molnár
- Centre for Precision Farming R&D Services, Faculty of Agriculture, Food Science and Environmental Management, University of Debrecen, Debrecen, Hungary
| | - Csaba Rácz
- Centre for Precision Farming R&D Services, Faculty of Agriculture, Food Science and Environmental Management, University of Debrecen, Debrecen, Hungary
| | - Gábor Fidler
- Center for Complex Systems and Microbiome Innovations, Faculty of Agricultural and Food Sciences and Environmental Management, University of Debrecen, Debrecen, Hungary
| | - Zoltán Kállai
- Department of Genetics and Applied Microbiology, Faculty of Science and Technology, University of Debrecen, Debrecen, Hungary
| | - László Stündl
- Institute of Food Technology, Faculty of Agricultural and Food Sciences and Environmental Management, University of Debrecen, Debrecen, Hungary
| | - Attila Csaba Dobos
- Centre for Precision Farming R&D Services, Faculty of Agriculture, Food Science and Environmental Management, University of Debrecen, Debrecen, Hungary
| | - Melinda Paholcsek
- Center for Complex Systems and Microbiome Innovations, Faculty of Agricultural and Food Sciences and Environmental Management, University of Debrecen, Debrecen, Hungary
| |
Collapse
|
2
|
Hellmann S, García-Cancela P, Alonso-Fernández S, Corte-Rodríguez M, Bettmer J, Manteca A, Merten D, Gil-Díaz T, Schäfer T, Montes-Bayón M. Single cell ICP-MS to evaluate the interaction behaviour for Cd, Ce and U with Streptomyces coelicolor spores. CHEMOSPHERE 2024; 347:140633. [PMID: 37951404 DOI: 10.1016/j.chemosphere.2023.140633] [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: 08/30/2023] [Revised: 11/03/2023] [Accepted: 11/05/2023] [Indexed: 11/14/2023]
Abstract
Streptomyces are important soil bacteria used for bioremediation of metal-contaminated soils, however, it is still unknown how metal-selective Streptomyces are and which mechanisms are involved during their capture. In this work, we exposed S. coelicolor spores to environmentally relevant concentrations (0.1, 1, 10, 100 μM) of Ce, U and Cd in solid medium for one week to investigate the uptake behaviour of hyphae in the newly formed spores. Additionally, metal adsorption onto the spores was explored by incubating inactive, ungerminated spores for one day in aqueous metal solution. The spore-washing treatment was key to distinguishing between strongly spore-associated (e.g. incorporation; Tris-EDTA buffer) and weakly spore-associated metals (Tris buffer alone minus Tris-EDTA). Single cell (sc) ICP-MS was used to quantify metal-associated content in individual spores. Our results revealed element-specific adsorption onto inactive spores showing that out of the total metal exposure, both strongly (Ce: 58%; U: 54%; Cd: 28%) and weakly (Ce: 12%; U: 1%; Cd: 18%) adsorbed metals occur. However, scICP-MS showed that from metal-amended solid medium, only Ce and U were strongly spore-associated (averages 0.040 and 0.062 fg spore-1 for 10 μM exposures, respectively) while Cd was below the limit of detection (< 0.006 fg spore-1). We propose that hyphae only metabolically interact with Ce in a controlled manner but uncontrolled with U, as 66-73% Ce and only 2-4% U were inherited from adsorbed content. We conclude that Streptomyces spore-metal interaction starts with a relevant adsorption step of Ce, U and Cd as presented for aqueous conditions. If spores start to germinate, hyphae are capable of effectively encapsulating Ce and U, but not Cd. This study brings light into the still unknown field of metal interactions with Streptomyces and applied understanding for more efficient and metal-specific use of Streptomyces in bioremediation of metal-polluted soils.
Collapse
Affiliation(s)
- Steffen Hellmann
- Institute of Geosciences, Friedrich Schiller University Jena, Burgweg 11, 07749, Jena, Germany; International Max Planck Research School for Global Biogeochemical Cycles, Max Planck Institute for Biogeochemistry, Department of Biogeochemical Processes, Hans-Knöll-Straße 10, 07745, Jena, Germany
| | - Paula García-Cancela
- Department of Physical and Analytical Chemistry, Faculty of Chemistry, Julian Clavería 8, 33006, Oviedo, Spain; Instituto de Investigación Sanitaria del Principado de Asturias (ISPA), Av. Del Hospital Universitario s/n, 33011, Oviedo, Spain
| | - Sergio Alonso-Fernández
- Área de Microbiología, Departamento de Biología Funcional, IUOPA and ISPA, Facultad de Medicina, Universidad de Oviedo, 33006, Oviedo, Spain
| | - Mario Corte-Rodríguez
- Department of Physical and Analytical Chemistry, Faculty of Chemistry, Julian Clavería 8, 33006, Oviedo, Spain; Instituto de Investigación Sanitaria del Principado de Asturias (ISPA), Av. Del Hospital Universitario s/n, 33011, Oviedo, Spain
| | - Jörg Bettmer
- Department of Physical and Analytical Chemistry, Faculty of Chemistry, Julian Clavería 8, 33006, Oviedo, Spain; Instituto de Investigación Sanitaria del Principado de Asturias (ISPA), Av. Del Hospital Universitario s/n, 33011, Oviedo, Spain
| | - Angel Manteca
- Área de Microbiología, Departamento de Biología Funcional, IUOPA and ISPA, Facultad de Medicina, Universidad de Oviedo, 33006, Oviedo, Spain
| | - Dirk Merten
- Institute of Geosciences, Friedrich Schiller University Jena, Burgweg 11, 07749, Jena, Germany
| | - Teba Gil-Díaz
- Institute of Applied Geosciences (AGW), Karlsruhe Institute of Technology (KIT), Adenauerring 20b, 76131, Karlsruhe, Germany
| | - Thorsten Schäfer
- Institute of Geosciences, Friedrich Schiller University Jena, Burgweg 11, 07749, Jena, Germany.
| | - María Montes-Bayón
- Department of Physical and Analytical Chemistry, Faculty of Chemistry, Julian Clavería 8, 33006, Oviedo, Spain; Instituto de Investigación Sanitaria del Principado de Asturias (ISPA), Av. Del Hospital Universitario s/n, 33011, Oviedo, Spain.
| |
Collapse
|
3
|
Complete Genome Sequences of Streptomyces Bacteriophages Annihilus, TonyStarch, Thiqqums, CricKo, ClubPenguin, RosaAsantewaa, and PherryCruz. Microbiol Resour Announc 2022; 11:e0092222. [PMID: 36286992 PMCID: PMC9671017 DOI: 10.1128/mra.00922-22] [Citation(s) in RCA: 0] [Impact Index Per Article: 0] [Reference Citation Analysis] [Abstract] [Track Full Text] [Journal Information] [Subscribe] [Scholar Register] [Indexed: 11/18/2022] Open
Abstract
Seven siphoviruses were isolated from soil using Streptomyces hosts. Their genome sequences ranged from 42,730 to 57,624 bp long and had a GC content of approximately 60%. Based on their gene content similarity to actinobacteriophages, all seven phages were assigned to cluster BI. For several of these phages, multiple ribosomal frameshifts were identified.
Collapse
|
4
|
Buresova‐Faitova A, Kopecky J, Sagova‐Mareckova M, Alonso L, Vautrin F, Moënne‐Loccoz Y, Rodriguez‐Nava V. Comparison of
Actinobacteria
communities from human‐impacted and pristine karst caves. Microbiologyopen 2022; 11:e1276. [PMID: 35478281 PMCID: PMC8988830 DOI: 10.1002/mbo3.1276] [Citation(s) in RCA: 0] [Impact Index Per Article: 0] [Reference Citation Analysis] [Abstract] [MESH Headings] [Grants] [Track Full Text] [Download PDF] [Figures] [Journal Information] [Subscribe] [Scholar Register] [Received: 06/24/2021] [Revised: 03/10/2022] [Accepted: 03/10/2022] [Indexed: 11/07/2022] Open
Abstract
Actinobacteria are important cave inhabitants, but knowledge of how anthropization and anthropization‐related visual marks affect this community on cave walls is lacking. We compared Actinobacteria communities among four French limestone caves (Mouflon, Reille, Rouffignac, and Lascaux) ranging from pristine to anthropized, and within Lascaux Cave between marked (wall visual marks) and unmarked areas in different rooms (Sas‐1, Passage, Apse, and Diaclase). In addition to the 16S rRNA gene marker, 441 bp fragments of the hsp65 gene were used and an hsp65‐related taxonomic database was constructed for the identification of Actinobacteria to the species level by Illumina‐MiSeq analysis. The hsp65 marker revealed higher resolution for species and higher richness (99% operational taxonomic units cutoff) versus the 16S rRNA gene; however, more taxa were identified at higher taxonomic ranks. Actinobacteria communities varied between Mouflon and Reille caves (both pristine), and Rouffignac and Lascaux (both anthropized). Rouffignac displayed high diversity of Nocardia, suggesting human inputs, and Lascaux exhibited high Mycobacterium relative abundance, whereas Gaiellales were typical in pristine caves and the Diaclase (least affected area of Lascaux Cave). Within Lascaux, Pseudonocardiaceae dominated on unmarked walls and Streptomycetaceae (especially Streptomyces mirabilis) on marked walls, indicating a possible role in mark formation. A new taxonomic database was developed. Although not all Actinobacteria species were represented, the use of the hsp65 marker enabled species‐level variations of the Actinobacteria community to be documented based on the extent of anthropogenic pressure. This approach proved effective when comparing different limestone caves or specific conditions within one cave.
Collapse
Affiliation(s)
- Andrea Buresova‐Faitova
- CNRS, INRAe, VetAgro Sup, UMR 5557 Ecologie MicrobienneUniversité de Lyon, Université Claude Bernard Lyon 1VilleurbanneFrance
- Department of Ecology, Faculty of ScienceCharles University in PraguePrague 2PragueCzech Republic
- Laboratory for Epidemiology and Ecology of MicroorganismsCrop Research InstitutePrahaCzech Republic
| | - Jan Kopecky
- Laboratory for Epidemiology and Ecology of MicroorganismsCrop Research InstitutePrahaCzech Republic
| | - Marketa Sagova‐Mareckova
- Laboratory for Epidemiology and Ecology of MicroorganismsCrop Research InstitutePrahaCzech Republic
| | - Lise Alonso
- CNRS, INRAe, VetAgro Sup, UMR 5557 Ecologie MicrobienneUniversité de Lyon, Université Claude Bernard Lyon 1VilleurbanneFrance
| | - Florian Vautrin
- CNRS, INRAe, VetAgro Sup, UMR 5557 Ecologie MicrobienneUniversité de Lyon, Université Claude Bernard Lyon 1VilleurbanneFrance
| | - Yvan Moënne‐Loccoz
- CNRS, INRAe, VetAgro Sup, UMR 5557 Ecologie MicrobienneUniversité de Lyon, Université Claude Bernard Lyon 1VilleurbanneFrance
| | - Veronica Rodriguez‐Nava
- CNRS, INRAe, VetAgro Sup, UMR 5557 Ecologie MicrobienneUniversité de Lyon, Université Claude Bernard Lyon 1VilleurbanneFrance
| |
Collapse
|
5
|
AbdElgawad H, Zinta G, Abuelsoud W, Hassan YM, Alkhalifah DHM, Hozzein WN, Zrieq R, Beemster GT, Schoenaers S. An actinomycete strain of Nocardiopsis lucentensis reduces arsenic toxicity in barley and maize. JOURNAL OF HAZARDOUS MATERIALS 2021; 417:126055. [PMID: 34229384 DOI: 10.1016/j.jhazmat.2021.126055] [Citation(s) in RCA: 17] [Impact Index Per Article: 5.7] [Reference Citation Analysis] [Abstract] [Key Words] [MESH Headings] [Track Full Text] [Subscribe] [Scholar Register] [Received: 07/24/2020] [Revised: 04/15/2021] [Accepted: 05/03/2021] [Indexed: 05/13/2023]
Abstract
Accumulation of arsenic in plant tissues poses a substantial threat to global crop yields. The use of plant growth-promoting bacterial strains to mitigate heavy metal toxicity has been illustrated before. However, its potential to reduce plant arsenic uptake and toxicity has not been investigated to date. Here, we describe the identification and characterization of a Nocardiopsis lucentensis strain isolated from heavy metal contaminated soil. Inoculation with this bioactive actinomycete strain decreased arsenic root and shoot bioaccumulation in both C3 and C4 crop species namely barley and maize. Upon arsenate treatment, N. lucentensis S5 stimulated root citric acid production and the plant's innate detoxification capacity in a species-specific manner. In addition, this specific strain promoted biomass gain, despite substantial tissue arsenic levels. Detoxification (metallothionein, phytochelatin, glutathione-S-transferase levels) was upregulated in arsenate-exposed shoot and roots, and this response was further enhanced upon S5 supplementation, particularly in barley and maize roots. Compared to barley, maize plants were more tolerant to arsenate-induced oxidative stress (less H2O2 and lipid peroxidation levels). However, barley plants invested more in antioxidative capacity induction (ascorbate-glutathione turnover) to mitigate arsenic oxidative stress, which was strongly enhanced by S5. We quantify and mechanistically discuss the physiological and biochemical basis of N. lucentensis-mediated plant biomass recovery on arsenate polluted soils. Our findings substantiate the potential applicability of a bactoremediation strategy to mitigate arsenic-induced yield loss in crops.
Collapse
Affiliation(s)
- Hamada AbdElgawad
- Integrated Molecular Plant Physiology Research, Department of Biology, University of Antwerp, Antwerp, Belgium; Department of Botany and Microbiology, Faculty of Science, Beni-Suef University, Beni-Suef 62511, Egypt
| | - Gaurav Zinta
- Integrated Molecular Plant Physiology Research, Department of Biology, University of Antwerp, Antwerp, Belgium; Biotechnology Division, CSIR-Institute of Himalayan Bioresource Technology, Palampur, India.
| | - Walid Abuelsoud
- Department of Botany and Microbiology, Faculty of Science, Cairo University, Giza, Egypt
| | - Yasser M Hassan
- Department of Botany and Microbiology, Faculty of Science, Beni-Suef University, Beni-Suef 62511, Egypt
| | - Dalal Hussien M Alkhalifah
- Department of Biology, College of Science, Princess Nourah Bint Abdulrahman University, Riyadh, Saudi Arabia
| | - Wael N Hozzein
- Department of Botany and Microbiology, Faculty of Science, Beni-Suef University, Beni-Suef 62511, Egypt.; Bioproducts Research Chair, Zoology Department, College of Science, King Saud University, Riyadh 11451, Saudi Arabia.
| | - Rafat Zrieq
- Department of Public Health, College of Public Health and Health Informatics, University of Ha'il, Ha'il, Saudi Arabia
| | - Gerrit Ts Beemster
- Integrated Molecular Plant Physiology Research, Department of Biology, University of Antwerp, Antwerp, Belgium
| | - Sébastjen Schoenaers
- Integrated Molecular Plant Physiology Research, Department of Biology, University of Antwerp, Antwerp, Belgium
| |
Collapse
|
6
|
Junpradit C, Thooppeng P, Duangmal K, Prapagdee B. Influence of cadmium-resistant Streptomycetes on plant growth and cadmium uptake by Chlorophytum comosum (Thunb.) Jacques. ENVIRONMENTAL SCIENCE AND POLLUTION RESEARCH INTERNATIONAL 2021; 28:39398-39408. [PMID: 33759092 DOI: 10.1007/s11356-021-13527-z] [Citation(s) in RCA: 2] [Impact Index Per Article: 0.7] [Reference Citation Analysis] [Abstract] [Key Words] [MESH Headings] [Track Full Text] [Subscribe] [Scholar Register] [Received: 10/10/2020] [Accepted: 03/15/2021] [Indexed: 06/12/2023]
Abstract
This work aims to explore the role of cadmium-resistant actinomycetes on promoting plant growth and cadmium uptake in Chlorophytum comosum (Thunb.) Jacques, a spider plant. Actinomycetes isolated from the plant roots in peat swamp forests were screened for their cadmium resistance and the production of indole-3-acetic acid (IAA) and siderophores. The results found that K5PN1 and 11-10SHTh produced high levels of IAA and siderophores, respectively. K5PN1 and 11-10SHTh were identified to be Streptomyces rapamycinicus and Streptomyces cyaneus, respectively. Both strains were able to remove cadmium from aqueous solution and survive under cadmium stress in contaminated soil. The results of pot experiments found that the selected Streptomyces inoculation increased the root and shoot biomass and cadmium accumulation in the root and shoot of C. comosum planted in a cadmium-contaminated soil. The highest cadmium accumulation and translocation ability of cadmium from the root to shoot was found in C. comosum with S. rapamycinicus inoculation. In addition, plant with S. cyaneus inoculation had the highest phytoextraction coefficient and bioaccumulation factor. Our findings concluded that S. rapamycinicus and S. cyaneus stimulated the growth and cadmium uptake in C. comosum, suggesting a combined approach using the selected Streptomyces and C. comosum for phytoremediation of cadmium-polluted soil.
Collapse
Affiliation(s)
- Chotinan Junpradit
- Laboratory of Environmental Biotechnology, Faculty of Environment and Resource Studies, Mahidol University, Salaya, Nakhon Pathom, 73170, Thailand
| | - Patsaraporn Thooppeng
- Laboratory of Environmental Biotechnology, Faculty of Environment and Resource Studies, Mahidol University, Salaya, Nakhon Pathom, 73170, Thailand
| | - Kannika Duangmal
- Department of Microbiology, Faculty of Science, Kasetsart University, Bangkok, 10900, Thailand
| | - Benjaphorn Prapagdee
- Laboratory of Environmental Biotechnology, Faculty of Environment and Resource Studies, Mahidol University, Salaya, Nakhon Pathom, 73170, Thailand.
| |
Collapse
|
7
|
Abstract
Toxic metal contamination has serious effects on human health. Crude oil that may contain toxic metals and oil spills can further contaminate the environment and lead to increased exposure. This being the case, we chose to study the bio-production of inexpensive, environmentally safe materials for remediation. Streptomyces sp. MOE6 is a Gram-positive, filamentous bacterium from soil that produces an extracellular polysaccharide (MOE6-EPS). A one-factor-at-a-time experiments showed that the maximum production of MOE6-EPS was achieved at 35 °C, pH 6, after nine days of incubation with soluble starch and yeast extract as carbon sources and the latter as the nitrogen source. We demonstrated that MOE6-EPS has the capacity to remove toxic metals such as Co(II), Cr(VI), Cu(II) and U(VI) and from solution either by chelation and/or reduction. Additionally, the bacterium was found to produce siderophores, which contribute to the removal of metals, specifically Fe(III). Additionally, purified MOE6-EPS showed emulsifying activities against various hydrophobic substances, including olive oil, corn oil, benzene, toluene and engine oil. These results indicate that EPS from Streptomyces sp. MOE6 may be useful to sequester toxic metals and oil in contaminated environments.
Collapse
|
8
|
Maurya S, Abraham JS, Somasundaram S, Toteja R, Gupta R, Makhija S. Indicators for assessment of soil quality: a mini-review. ENVIRONMENTAL MONITORING AND ASSESSMENT 2020; 192:604. [PMID: 32857216 DOI: 10.1007/s10661-020-08556-z] [Citation(s) in RCA: 16] [Impact Index Per Article: 4.0] [Reference Citation Analysis] [Abstract] [Key Words] [MESH Headings] [Track Full Text] [Subscribe] [Scholar Register] [Received: 05/18/2020] [Accepted: 08/16/2020] [Indexed: 05/20/2023]
Abstract
Soil quality is the competence of soil to perform necessary functions that are able to maintain animal and plant productivity of the soil. Soil consists of various physical, chemical, and biological parameters, and all these parameters are involved in the critical functioning of soil. There is a need for continuous assessment of soil quality as soil is a complex and dynamic constituent of Earth's biosphere that is continuously changing by natural and anthropogenic disturbances. Any perturbations in the soil cause disturbances in the physical (soil texture, bulk density, etc.), chemical (pH, salinity, organic carbon, etc.), and biological (microbes and enzymes) parameters. These physical, chemical, and biological parameters can serve as indicators for soil quality assessment. However, soil quality assessment cannot be possible by evaluating only one parameter out of physical, chemical, or biological. So, there is an emergent need to establish a minimum dataset (MDS) which shall include physical, chemical, and biological parameters to assess the quality of the given soil. This review attempts to describe various physical, chemical, and biological parameters, combinations of which can be used in the establishment of MDS.
Collapse
Affiliation(s)
- Swati Maurya
- Department of Zoology, Acharya Narendra Dev College, University of Delhi, Govindpuri, Kalkaji, New Delhi, 110019, India
| | - Jeeva Susan Abraham
- Department of Zoology, Acharya Narendra Dev College, University of Delhi, Govindpuri, Kalkaji, New Delhi, 110019, India
| | - Sripoorna Somasundaram
- Department of Zoology, Acharya Narendra Dev College, University of Delhi, Govindpuri, Kalkaji, New Delhi, 110019, India
| | - Ravi Toteja
- Department of Zoology, Acharya Narendra Dev College, University of Delhi, Govindpuri, Kalkaji, New Delhi, 110019, India
| | - Renu Gupta
- Department of Zoology, Maitreyi College, University of Delhi, Bapu dham, Chanakyapuri, New Delhi, 110021, India
| | - Seema Makhija
- Department of Zoology, Acharya Narendra Dev College, University of Delhi, Govindpuri, Kalkaji, New Delhi, 110019, India.
| |
Collapse
|
9
|
Giddings LA, Chlipala G, Kunstman K, Green S, Morillo K, Bhave K, Peterson H, Driscoll H, Maienschein-Cline M. Characterization of an acid rock drainage microbiome and transcriptome at the Ely Copper Mine Superfund site. PLoS One 2020; 15:e0237599. [PMID: 32785287 PMCID: PMC7423320 DOI: 10.1371/journal.pone.0237599] [Citation(s) in RCA: 6] [Impact Index Per Article: 1.5] [Reference Citation Analysis] [Abstract] [MESH Headings] [Grants] [Track Full Text] [Download PDF] [Figures] [Journal Information] [Subscribe] [Scholar Register] [Received: 05/12/2020] [Accepted: 07/29/2020] [Indexed: 01/20/2023] Open
Abstract
The microbial oxidation of metal sulfides plays a major role in the formation of acid rock drainage (ARD). We aimed to broadly characterize the ARD at Ely Brook, which drains the Ely Copper Mine Superfund site in Vermont, USA, using metagenomics and metatranscriptomics to assess the metabolic potential and seasonal ecological roles of microorganisms in water and sediment. Using Centrifuge against the NCBI "nt" database, ~25% of reads in sediment and water samples were classified as acid-tolerant Proteobacteria (61 ± 4%) belonging to the genera Pseudomonas (2.6-3.3%), Bradyrhizobium (1.7-4.1%), and Streptomyces (2.9-5.0%). Numerous genes (12%) were differentially expressed between seasons and played significant roles in iron, sulfur, carbon, and nitrogen cycling. The most abundant RNA transcript encoded the multidrug resistance protein Stp, and most expressed KEGG-annotated transcripts were involved in amino acid metabolism. Biosynthetic gene clusters involved in secondary metabolism (BGCs, 449) as well as metal- (133) and antibiotic-resistance (8501) genes were identified across the entire dataset. Several antibiotic and metal resistance genes were colocalized and coexpressed with putative BGCs, providing insight into the protective roles of the molecules BGCs produce. Our study shows that ecological stimuli, such as metal concentrations and seasonal variations, can drive ARD taxa to produce novel bioactive metabolites.
Collapse
Affiliation(s)
- Lesley-Ann Giddings
- Department of Chemistry & Biochemistry, Middlebury College, Middlebury, Vermont, United States of America
- Department of Chemistry, Smith College, Northampton, Massachusetts, United States of America
| | - George Chlipala
- Research Resources Center, University of Illinois at Chicago, Chicago, Illinois, United States of America
| | - Kevin Kunstman
- Research Resources Center, University of Illinois at Chicago, Chicago, Illinois, United States of America
| | - Stefan Green
- Research Resources Center, University of Illinois at Chicago, Chicago, Illinois, United States of America
| | - Katherine Morillo
- Department of Chemistry & Biochemistry, Middlebury College, Middlebury, Vermont, United States of America
| | - Kieran Bhave
- Department of Chemistry & Biochemistry, Middlebury College, Middlebury, Vermont, United States of America
| | - Holly Peterson
- Department of Geology, Guilford College, Greensboro, North Carolina, United States of America
| | - Heather Driscoll
- Vermont Genetics Network, Department of Biology, Norwich University, Northfield, Vermont, United States of America
| | - Mark Maienschein-Cline
- Research Resources Center, University of Illinois at Chicago, Chicago, Illinois, United States of America
| |
Collapse
|
10
|
Krauße T, Schütze E, Phieler R, Fürst D, Merten D, Büchel G, Kothe E. Changes in element availability induced by sterilization in heavy metal contaminated substrates: A comprehensive study. JOURNAL OF HAZARDOUS MATERIALS 2019; 370:70-79. [PMID: 29153855 DOI: 10.1016/j.jhazmat.2017.11.008] [Citation(s) in RCA: 6] [Impact Index Per Article: 1.2] [Reference Citation Analysis] [Abstract] [Key Words] [Track Full Text] [Subscribe] [Scholar Register] [Received: 07/21/2017] [Revised: 11/03/2017] [Accepted: 11/04/2017] [Indexed: 06/07/2023]
Abstract
Microbiome analyses of soils and microcosm experiments depend on conditions that include sterilization in order to perform experimental manipulation of microbial communities. Still, they should represent conditions close to nature. When using metal contaminated soils, sterilization methods might alter metal availability. Here, four typical metal contaminated substrates were analyzed, representing different contamination histories and soil types. They included two very poor substrates, as they are often found at metal contaminated sites. The low contents in organic carbon and nitrogen as well as two substrates with slightly higher nutrient availability were used to perform a comprehesive study for element availability changes induced by sterilization. Autoclaving, dry heat or gamma raγ sterilization were applied and compared to a non-treated control. The sterile substrates were analyzed using sequential extraction to account for different associations of the elements. Metals forming specific (hydro)oxide layers were specifically analyzed since they in turn may also impact other metals or ions. In addition, (heavy) metals and (micro)nutrients were analyzed for changes in speciation. The effects of autoclaving (wet heat) was found acceptable, while γ-ray irradiation did show unexpected changes in metal associations, especially for one substrate. Dry heat changed metal availability to the highest degree.
Collapse
Affiliation(s)
- Thomas Krauße
- Microbial Communication, Institute of Microbiology, Faculty of Biology and Pharmacy, Friedrich Schiller University Jena, Neugasse 25, 07743 Jena, Germany
| | - Eileen Schütze
- Microbial Communication, Institute of Microbiology, Faculty of Biology and Pharmacy, Friedrich Schiller University Jena, Neugasse 25, 07743 Jena, Germany
| | - René Phieler
- Microbial Communication, Institute of Microbiology, Faculty of Biology and Pharmacy, Friedrich Schiller University Jena, Neugasse 25, 07743 Jena, Germany
| | - David Fürst
- Microbial Communication, Institute of Microbiology, Faculty of Biology and Pharmacy, Friedrich Schiller University Jena, Neugasse 25, 07743 Jena, Germany
| | - Dirk Merten
- Applied Geology, Institute of Geosciences, Faculty of Chemistry and Earth Sciences, Friedrich Schiller University Jena, Burgweg 11, 07749 Jena, Germany
| | - Georg Büchel
- Applied Geology, Institute of Geosciences, Faculty of Chemistry and Earth Sciences, Friedrich Schiller University Jena, Burgweg 11, 07749 Jena, Germany
| | - Erika Kothe
- Microbial Communication, Institute of Microbiology, Faculty of Biology and Pharmacy, Friedrich Schiller University Jena, Neugasse 25, 07743 Jena, Germany.
| |
Collapse
|
11
|
Wagner K, Krause K, Gallegos-Monterrosa R, Sammer D, Kovács ÁT, Kothe E. The Ectomycorrhizospheric Habitat of Norway Spruce and Tricholoma vaccinum: Promotion of Plant Growth and Fitness by a Rich Microorganismic Community. Front Microbiol 2019; 10:307. [PMID: 30842767 PMCID: PMC6391851 DOI: 10.3389/fmicb.2019.00307] [Citation(s) in RCA: 11] [Impact Index Per Article: 2.2] [Reference Citation Analysis] [Abstract] [Key Words] [Track Full Text] [Download PDF] [Figures] [Journal Information] [Subscribe] [Scholar Register] [Received: 09/27/2018] [Accepted: 02/05/2019] [Indexed: 11/23/2022] Open
Abstract
The contribution of the mycorrhizospheric microbes in a stand of ectomycorrhizal Norway spruce (Picea abies) featuring mycorrhiza with the basidiomycete Tricholoma vaccinum was addressed by microbiome analysis and in vitro reconstruction of microbial as well as plant-microbe interactions. The protective role of the mycorrhizal fungus with respect to pathogen attack could be validated against Botrytis cinerea and Heterobasidion annosum in co-cultures revealing reduced pathogen growth, higher survival rate of the spruce trees and reduced symptoms on needles upon symbiosis with T. vaccinum. The community structure was shown to yield a high diversity in ECM forming basidiomycetes of Thelephorales and Agaricales associated with a rich bacterial diversity dominated by Rhizobiales with the most abundant Nitrobacter winogradski (3.9%). Isolated bacteria were then used to address plant growth promoting abilities, which included production of the phytohormone indole-3-acetic acid (performed by 74% of the bacterial isolates), siderophores (22%), and phosphate mobilization (23%). Among the isolates, mycorrhiza helper bacteria (MHB) were identified, with Bacillus cereus MRZ-1 inducing hyperbranching in T. vaccinum, supporting tree germination, shoot elongation, and root formation as well as higher mycorrhization rates. Thus, a huge pool of potential MHB and fungal community with widely distributed auxin-production potential extended the ability of T. vaccinum to form ectomycorrhiza. The forest community profited from the mycorrhizal fungus T. vaccinum, with spruce survival enhanced by 33% in microcosms using soil from the native habitat. A higher fungal abundance and diversity in cases where the tree had died during the experiment, showing that decomposition of plant litter from a dead tree supported a different community. T. vaccinum thus actively structured the community of microorganisms in its habitat.
Collapse
Affiliation(s)
- Katharina Wagner
- Microbial Communication, Institute of Microbiology, Friedrich Schiller University Jena, Jena, Germany
| | - Katrin Krause
- Microbial Communication, Institute of Microbiology, Friedrich Schiller University Jena, Jena, Germany
| | - Ramses Gallegos-Monterrosa
- Terrestrial Biofilms Group, Institute of Microbiology, Friedrich Schiller University Jena, Jena, Germany
| | - Dominik Sammer
- Microbial Communication, Institute of Microbiology, Friedrich Schiller University Jena, Jena, Germany
| | - Ákos T Kovács
- Terrestrial Biofilms Group, Institute of Microbiology, Friedrich Schiller University Jena, Jena, Germany
| | - Erika Kothe
- Microbial Communication, Institute of Microbiology, Friedrich Schiller University Jena, Jena, Germany
| |
Collapse
|
12
|
Ali A, Guo D, Mahar A, Wang Z, Muhammad D, Li R, Wang P, Shen F, Xue Q, Zhang Z. Role of Streptomyces pactum in phytoremediation of trace elements by Brassica juncea in mine polluted soils. ECOTOXICOLOGY AND ENVIRONMENTAL SAFETY 2017; 144:387-395. [PMID: 28647606 DOI: 10.1016/j.ecoenv.2017.06.046] [Citation(s) in RCA: 28] [Impact Index Per Article: 4.0] [Reference Citation Analysis] [Abstract] [Key Words] [MESH Headings] [Track Full Text] [Subscribe] [Scholar Register] [Received: 01/28/2017] [Revised: 06/13/2017] [Accepted: 06/16/2017] [Indexed: 08/20/2023]
Abstract
The industrial expansion, smelting, mining and agricultural practices have increased the release of toxic trace elements (TEs) in the environment and threaten living organisms. The microbe-assisted phytoremediation is environmentally safe and provide an effective approach to remediate TEs contaminated soils. A pot experiment was conducted to test the potential of an Actinomycete, subspecies Streptomyces pactum (Act12) along with medical stone compost (MSC) by growing Brassica juncea in smelter and mines polluted soils of Feng County (FC) and Tongguan (TG, China), respectively. Results showed that Zn (7, 28%), Pb (54, 21%), Cd (16, 17%) and Cu (8, 10%) uptake in shoot and root of Brassica juncea was pronounced in FC soil. Meanwhile, the Zn (40, 14%) and Pb (82, 15%) uptake in the shoot and root were also increased in TG soil. Shoot Cd uptake remained below detection, while Cu decreased by 52% in TG soil. The Cd and Cu root uptake were increased by 17% and 33%, respectively. Results showed that TEs uptake in shoot increased with increasing Act12 dose. Shoot/root dry biomass, chlorophyll and carotenoid content in Brassica juncea were significantly influenced by the application of Act12 in FC and TG soil. The antioxidant enzymatic activities (POD, PAL, PPO and CAT) in Brassica juncea implicated enhancement in the plant defense mechanism against the TEs induced stress in contaminated soils. The extraction potential of Brasssica was further evaluated by TF (translocation factor) and MEA (metal extraction amount). Based on our findings, further investigation of Act12 assisted phytoremediation of TEs in the smelter and mines polluted soil and hyperaccumulator species are suggested for future studies.
Collapse
Affiliation(s)
- Amjad Ali
- College of Natural Resources and Environment, Northwest A&F University, Yangling 712100, China
| | - Di Guo
- College of Natural Resources and Environment, Northwest A&F University, Yangling 712100, China
| | - Amanullah Mahar
- College of Natural Resources and Environment, Northwest A&F University, Yangling 712100, China; Centre for Environmental Sciences, University of Sindh, Jamshoro 76080, Pakistan
| | - Zhen Wang
- College of Natural Resources and Environment, Northwest A&F University, Yangling 712100, China
| | - Dost Muhammad
- Department of Soil and Environmental Sciences, The University of Agriculture, Peshawar 25130, Pakistan
| | - Ronghua Li
- College of Natural Resources and Environment, Northwest A&F University, Yangling 712100, China
| | - Ping Wang
- College of Natural Resources and Environment, Northwest A&F University, Yangling 712100, China
| | - Feng Shen
- College of Natural Resources and Environment, Northwest A&F University, Yangling 712100, China
| | - Quanhong Xue
- College of Natural Resources and Environment, Northwest A&F University, Yangling 712100, China
| | - Zengqiang Zhang
- College of Natural Resources and Environment, Northwest A&F University, Yangling 712100, China.
| |
Collapse
|
13
|
Antony-Babu S, Stien D, Eparvier V, Parrot D, Tomasi S, Suzuki MT. Multiple Streptomyces species with distinct secondary metabolomes have identical 16S rRNA gene sequences. Sci Rep 2017; 7:11089. [PMID: 28894255 PMCID: PMC5593946 DOI: 10.1038/s41598-017-11363-1] [Citation(s) in RCA: 53] [Impact Index Per Article: 7.6] [Reference Citation Analysis] [Abstract] [MESH Headings] [Track Full Text] [Download PDF] [Figures] [Journal Information] [Subscribe] [Scholar Register] [Received: 09/14/2016] [Accepted: 08/23/2017] [Indexed: 11/19/2022] Open
Abstract
Microbial diversity studies using small subunit (SSU) rRNA gene sequences continue to advance our understanding of biological and ecological systems. Although a good predictor of overall diversity, using this gene to infer the presence of a species in a sample is more controversial. Here, we present a detailed polyphasic analysis of 10 bacterial strains isolated from three coastal lichens Lichina confinis, Lichina pygmaea and Roccella fuciformis with SSU rRNA gene sequences identical to the type strain of Streptomyces cyaneofuscatus. This analysis included phenotypic, microscopic, genetic and genomic comparisons and showed that despite their identical SSU rRNA sequences the strains had markedly different properties, and could be distinguished as 5 different species. Significantly, secondary metabolites profiles from these strains were also found to be different. It is thus clear that SSU rRNA based operational taxonomy units, even at the most stringent cut-off can represent multiple bacterial species, and that at least for the case of Streptomyces, strain de-replication based on SSU gene sequences prior to screening for bioactive molecules can miss potentially interesting novel molecules produced by this group that is notorious for the production of drug-leads.
Collapse
Affiliation(s)
- Sanjay Antony-Babu
- Sorbonne Universités, UPMC Univ Paris 06, CNRS, Laboratoire de Biodiversité et Biotechnologies Microbiennes (LBBM), Observatoire Océanologique, F-66650 Banyuls/Mer, France CNRS, USR 3579, LBBM, Observatoire Océanologique, 66650, Banyuls-sur-Mer, France
- School of Biological Sciences, University of Nebraska-Lincoln, Lincoln, Nebraska, 68588, United States of America
| | - Didier Stien
- Sorbonne Universités, UPMC Univ Paris 06, CNRS, Laboratoire de Biodiversité et Biotechnologies Microbiennes (LBBM), Observatoire Océanologique, F-66650 Banyuls/Mer, France CNRS, USR 3579, LBBM, Observatoire Océanologique, 66650, Banyuls-sur-Mer, France
| | - Véronique Eparvier
- CNRS, Institut de Chimie des Substances Naturelles, 91198, Gif-sur-Yvette cedex, France
| | - Delphine Parrot
- UMR CNRS 6226, Institut des Sciences Chimiques de Rennes, Equipe CORINT "Chimie Organique et Interface", UFR Sciences Pharmaceutiques et Biologiques, Univ. Rennes 1, Université Bretagne Loire, 2 Avenue du Pr. Léon Bernard, F-35043, Rennes, France
| | - Sophie Tomasi
- UMR CNRS 6226, Institut des Sciences Chimiques de Rennes, Equipe CORINT "Chimie Organique et Interface", UFR Sciences Pharmaceutiques et Biologiques, Univ. Rennes 1, Université Bretagne Loire, 2 Avenue du Pr. Léon Bernard, F-35043, Rennes, France
| | - Marcelino T Suzuki
- Sorbonne Universités, UPMC Univ Paris 06, CNRS, Laboratoire de Biodiversité et Biotechnologies Microbiennes (LBBM), Observatoire Océanologique, F-66650 Banyuls/Mer, France CNRS, USR 3579, LBBM, Observatoire Océanologique, 66650, Banyuls-sur-Mer, France.
| |
Collapse
|
14
|
Plant growth-promoting actinobacteria: a new strategy for enhancing sustainable production and protection of grain legumes. 3 Biotech 2017; 7:102. [PMID: 28560641 DOI: 10.1007/s13205-017-0736-3] [Citation(s) in RCA: 72] [Impact Index Per Article: 10.3] [Reference Citation Analysis] [Abstract] [Key Words] [Track Full Text] [Journal Information] [Subscribe] [Scholar Register] [Received: 11/02/2016] [Accepted: 04/19/2017] [Indexed: 10/19/2022] Open
Abstract
Grain legumes are a cost-effective alternative for the animal protein in improving the diets of the poor in South-East Asia and Africa. Legumes, through symbiotic nitrogen fixation, meet a major part of their own N demand and partially benefit the following crops of the system by enriching soil. In realization of this sustainability advantage and to promote pulse production, United Nations had declared 2016 as the "International Year of pulses". Grain legumes are frequently subjected to both abiotic and biotic stresses resulting in severe yield losses. Global yields of legumes have been stagnant for the past five decades in spite of adopting various conventional and molecular breeding approaches. Furthermore, the increasing costs and negative effects of pesticides and fertilizers for crop production necessitate the use of biological options of crop production and protection. The use of plant growth-promoting (PGP) bacteria for improving soil and plant health has become one of the attractive strategies for developing sustainable agricultural systems due to their eco-friendliness, low production cost and minimizing consumption of non-renewable resources. This review emphasizes on how the PGP actinobacteria and their metabolites can be used effectively in enhancing the yield and controlling the pests and pathogens of grain legumes.
Collapse
|
15
|
Złoch M, Thiem D, Gadzała-Kopciuch R, Hrynkiewicz K. Synthesis of siderophores by plant-associated metallotolerant bacteria under exposure to Cd(2.). CHEMOSPHERE 2016; 156:312-325. [PMID: 27183333 DOI: 10.1016/j.chemosphere.2016.04.130] [Citation(s) in RCA: 64] [Impact Index Per Article: 8.0] [Reference Citation Analysis] [Abstract] [Key Words] [MESH Headings] [Track Full Text] [Subscribe] [Scholar Register] [Received: 01/13/2016] [Revised: 04/23/2016] [Accepted: 04/30/2016] [Indexed: 05/21/2023]
Abstract
Rhizosphere and endophytic bacteria are well known producers of siderophores, organic compounds that chelate ferric iron (Fe(3+)), and therefore play an important role in plant growth promotion in metalliferous areas, thereby improving bioremediation processes. However, in addition to their primary function in iron mobilization, siderophores also have the capacity to chelate other heavy metals, such as Al(3+), Zn(2+), Cu(2+), Pb(2+) and Cd(2+), that can affect homeostasis and the heavy metal tolerance of microorganisms. The main goal of our study was to select the most efficient siderophore-producing bacterial strains isolated from the roots (endophytes) and rhizosphere of Betula pendula L. and Alnus glutinosa L. growing at two heavy metal contaminated sites in southern Poland. Siderophore biosynthesis of these strains in the presence of increasing concentrations of Cd(2+) (0, 0.5, 1, 2 and 3 mM) under iron-deficiency conditions was analysed using spectrophotometric chemical tests for hydroxamates, catecholates and phenolates, as well as the separation of bacterial siderophores by HPLC and characterization of their structure by UHPLC-QTOF/MS. We proved that (i) siderophore-producing bacterial strains seems to be more abundant in the rhizosphere (47%) than in root endophytes (18%); (ii) the strains most effective at siderophore synthesis belonged to the genus Streptomyces and were able to secrete three types of siderophores under Cd(2+) stress: hydroxamates, catecholates and phenolates; (iii) in general, the addition of Cd(2+) enhanced siderophore synthesis, particularly ferrioxamine B synthesis, which may indicate that siderophores play a significant role in tolerance to Cd(2+) in Streptomyces sp.
Collapse
Affiliation(s)
- Michał Złoch
- Department of Microbiology, Faculty of Biology and Environmental Protection, Nicolaus Copernicus University, Lwowska 1, 87-100 Torun, Poland; Interdisciplinary Centre of Modern Technologies, Nicolaus Copernicus University, Wileńska 4, 87-100 Toruń, Poland
| | - Dominika Thiem
- Department of Microbiology, Faculty of Biology and Environmental Protection, Nicolaus Copernicus University, Lwowska 1, 87-100 Torun, Poland
| | - Renata Gadzała-Kopciuch
- Department of Environmental Chemistry & Bioanalytics, Faculty of Chemistry, Nicolaus Copernicus University, Gagarina 7, PL-87-100 Torun, Poland; Interdisciplinary Centre of Modern Technologies, Nicolaus Copernicus University, Wileńska 4, 87-100 Toruń, Poland
| | - Katarzyna Hrynkiewicz
- Department of Microbiology, Faculty of Biology and Environmental Protection, Nicolaus Copernicus University, Lwowska 1, 87-100 Torun, Poland; Interdisciplinary Centre of Modern Technologies, Nicolaus Copernicus University, Wileńska 4, 87-100 Toruń, Poland.
| |
Collapse
|
16
|
Cao S, Wang W, Wang F, Zhang J, Wang Z, Yang S, Xue Q. Drought-tolerant Streptomyces pactum Act12 assist phytoremediation of cadmium-contaminated soil by Amaranthus hypochondriacus: great potential application in arid/semi-arid areas. ENVIRONMENTAL SCIENCE AND POLLUTION RESEARCH INTERNATIONAL 2016; 23:14898-14907. [PMID: 27072036 DOI: 10.1007/s11356-016-6636-y] [Citation(s) in RCA: 8] [Impact Index Per Article: 1.0] [Reference Citation Analysis] [Abstract] [Key Words] [MESH Headings] [Track Full Text] [Subscribe] [Scholar Register] [Received: 01/07/2016] [Accepted: 04/04/2016] [Indexed: 06/05/2023]
Abstract
Microbe-assisted phytoremediation provides an effective approach to clean up heavy metal-contaminated soils. However, severe drought may affect the function of microbes in arid/semi-arid areas. Streptomyces pactum Act12 is a drought-tolerant soil actinomycete strain isolated from an extreme environment on the Qinghai-Tibet Plateau, China. In this study, pot experiments were conducted to assess the effect of Act12 on Cd tolerance, uptake, and accumulation in amaranth (Amaranthus hypochondriacus) under water deficit. Inoculated plants had higher Cd concentrations (root 8.7-33.9 %; shoot 53.2-102.1 %) and uptake (root 19.9-95.3 %; shoot 110.6-170.1 %) than non-inoculated controls in Cd-treated soil. The translocation factor of Cd from roots to shoots was increased by 14.2-75 % in inoculated plants, while the bioconcentration factor of Cd in roots and shoots was increased by 10.2-64.4 and 53.9-114.8 %, respectively. Moreover, inoculation with Act12 increased plant height, root length, and shoot biomass of amaranth in Cd-treated soil compared to non-inoculated controls. Physiochemical analysis revealed that Act12 enhanced Cd tolerance in the plants by increasing glutathione, elevating superoxide dismutase and catalase activities, as well as reducing malondialdehyde content in the leaves. The drought-tolerant actinomycete strain Act12 can enhance the phytoremediation efficiency of amaranth for Cd-contaminated soils under water deficit, exhibiting potential for application in arid and semi-arid areas.
Collapse
Affiliation(s)
- Shumiao Cao
- Key Laboratory of Subsurface Hydrology and Ecological Effects in Arid Region, Chang'an University, Ministry of Education, Xi'an, 710054, People's Republic of China
| | - Wenke Wang
- Key Laboratory of Subsurface Hydrology and Ecological Effects in Arid Region, Chang'an University, Ministry of Education, Xi'an, 710054, People's Republic of China.
| | - Fei Wang
- College of Science, Air Force Engineering University, Xi'an, 710054, People's Republic of China
| | - Jun Zhang
- Key Laboratory of Subsurface Hydrology and Ecological Effects in Arid Region, Chang'an University, Ministry of Education, Xi'an, 710054, People's Republic of China
| | - Zhoufeng Wang
- Key Laboratory of Subsurface Hydrology and Ecological Effects in Arid Region, Chang'an University, Ministry of Education, Xi'an, 710054, People's Republic of China
| | - Shenke Yang
- Key Laboratory of Subsurface Hydrology and Ecological Effects in Arid Region, Chang'an University, Ministry of Education, Xi'an, 710054, People's Republic of China
| | - Quanhong Xue
- College of Natural Resources and Environment, Northwest A&F University, Yangling, 712100, People's Republic of China
| |
Collapse
|
17
|
Henke C, Jung EM, Kothe E. Hartig' net formation of Tricholoma vaccinum-spruce ectomycorrhiza in hydroponic cultures. ENVIRONMENTAL SCIENCE AND POLLUTION RESEARCH INTERNATIONAL 2015; 22:19394-9. [PMID: 25791268 DOI: 10.1007/s11356-015-4354-5] [Citation(s) in RCA: 5] [Impact Index Per Article: 0.6] [Reference Citation Analysis] [Abstract] [Key Words] [MESH Headings] [Track Full Text] [Subscribe] [Scholar Register] [Received: 12/30/2014] [Accepted: 03/09/2015] [Indexed: 05/27/2023]
Abstract
For re-forestation of metal-contaminated land, ectomycorrhizal trees may provide a solution. Hence, the study of the interaction is necessary to allow for comprehensive understanding of the mutually symbiotic features. On a structural level, hyphal mantle and the Hartig' net formed in the root apoplast are essential for plant protection and mycorrhizal functioning. As a model, we used the basidiomycete Tricholoma vaccinum and its host spruce (Picea abies). Using an optimized hydroponic cultivation system, both features could be visualized and lower stress response of the tree was obtained in non-challenged cultivation. Larger spaces in the apoplasts could be shown with high statistical significance. The easy accessibility will allow to address metal stress or molecular responses in both partners. Additionally, the proposed cultivation system will enable for other experimental applications like addressing flooding, biological interactions with helper bacteria, chemical signaling, or other biotic or abiotic challenges relevant in the natural habitat.
Collapse
Affiliation(s)
- Catarina Henke
- Institute of Microbiology, Microbial Communication, Friedrich Schiller University, Neugasse 25, 07734, Jena, Germany.
| | - Elke-Martina Jung
- Institute of Microbiology, Microbial Communication, Friedrich Schiller University, Neugasse 25, 07734, Jena, Germany
| | - Erika Kothe
- Institute of Microbiology, Microbial Communication, Friedrich Schiller University, Neugasse 25, 07734, Jena, Germany
| |
Collapse
|
18
|
Schütze E, Ahmed E, Voit A, Klose M, Greyer M, Svatoš A, Merten D, Roth M, Holmström SJM, Kothe E. Siderophore production by streptomycetes-stability and alteration of ferrihydroxamates in heavy metal-contaminated soil. ENVIRONMENTAL SCIENCE AND POLLUTION RESEARCH INTERNATIONAL 2015; 22:19376-19383. [PMID: 25414032 DOI: 10.1007/s11356-014-3842-3] [Citation(s) in RCA: 9] [Impact Index Per Article: 1.0] [Reference Citation Analysis] [Abstract] [Key Words] [MESH Headings] [Track Full Text] [Subscribe] [Scholar Register] [Received: 09/01/2014] [Accepted: 11/10/2014] [Indexed: 06/04/2023]
Abstract
Heavy metal-contaminated soil derived from a former uranium mining site in Ronneburg, Germany, was used for sterile mesocosms inoculated with the extremely metal-resistant Streptomyces mirabilis P16B-1 or the sensitive control strain Streptomyces lividans TK24. The production and fate of bacterial hydroxamate siderophores in soil was analyzed, and the presence of ferrioxamines E, B, D, and G was shown. While total ferrioxamine concentrations decreased in water-treated controls after 30 days of incubation, the sustained production by the bacteria was seen. For the individual molecules, alteration between neutral and cationic forms and linearization of hydroxamates was observed for the first time. Mesocosms inoculated with biomass of either strain showed changes of siderophore contents compared with the non-treated control indicating for auto-alteration and consumption, respectively, depending on the vital bacteria present. Heat stability and structural consistency of siderophores obtained from sterile culture filtrate were shown. In addition, low recovery (32 %) from soil was shown, indicating adsorption to soil particles or soil organic matter. Fate and behavior of hydroxamate siderophores in metal-contaminated soils may affect soil properties as well as conditions for its inhabiting (micro)organisms.
Collapse
Affiliation(s)
- Eileen Schütze
- Microbial Communication, Institute of Microbiology, Faculty of Biology and Pharmacy, Friedrich Schiller University Jena, Neugasse 25, 07745, Jena, Germany
| | - Engy Ahmed
- Department of Geological Sciences, Stockholm University, Svante Arrhenius väg 8, 10691, Stockholm, Sweden
| | - Annekatrin Voit
- Microbial Communication, Institute of Microbiology, Faculty of Biology and Pharmacy, Friedrich Schiller University Jena, Neugasse 25, 07745, Jena, Germany
| | - Michael Klose
- Microbial Communication, Institute of Microbiology, Faculty of Biology and Pharmacy, Friedrich Schiller University Jena, Neugasse 25, 07745, Jena, Germany
| | - Matthias Greyer
- Microbial Communication, Institute of Microbiology, Faculty of Biology and Pharmacy, Friedrich Schiller University Jena, Neugasse 25, 07745, Jena, Germany
| | - Aleš Svatoš
- Research Group Mass Spectrometry, Max Planck Institute for Chemical Ecology, Hans-Knöll-Straße 8, 07745, Jena, Germany
| | - Dirk Merten
- Hydrogeology, Institute for Geosciences, Faculty of Chemistry and Earth Sciences, Friedrich Schiller University Jena, Burgweg 11, 07749, Jena, Germany
| | - Martin Roth
- Bio Pilot Plant, Leibniz-Institute for Natural Product Research and Infection Biology-Hans Knöll Institute HKI, Jena, Germany
| | - Sara J M Holmström
- Department of Geological Sciences, Stockholm University, Svante Arrhenius väg 8, 10691, Stockholm, Sweden
| | - Erika Kothe
- Microbial Communication, Institute of Microbiology, Faculty of Biology and Pharmacy, Friedrich Schiller University Jena, Neugasse 25, 07745, Jena, Germany.
| |
Collapse
|
19
|
Phieler R, Merten D, Roth M, Büchel G, Kothe E. Phytoremediation using microbially mediated metal accumulation in Sorghum bicolor. ENVIRONMENTAL SCIENCE AND POLLUTION RESEARCH INTERNATIONAL 2015; 22:19408-19416. [PMID: 25874434 DOI: 10.1007/s11356-015-4471-1] [Citation(s) in RCA: 16] [Impact Index Per Article: 1.8] [Reference Citation Analysis] [Abstract] [Key Words] [MESH Headings] [Track Full Text] [Subscribe] [Scholar Register] [Received: 12/22/2014] [Accepted: 03/30/2015] [Indexed: 06/04/2023]
Abstract
Reclaiming land that has been anthropogenically contaminated with multiple heavy metal elements, e.g., during mining operations, is a growing challenge worldwide. The use of phytoremediation has been discussed with varying success. Here, we show that a careful examination of options of microbial determination of plant performance is a key element in providing a multielement remediation option for such landscapes. We used both (a) mycorrhiza with Rhizophagus irregularis and (b) bacterial amendments with Streptomyces acidiscabies E13 and Streptomyces tendae F4 to mediate plant-promoting and metal-accumulating properties to Sorghum bicolor. In pot experiments, the effects on plant growth and metal uptake were scored, and in a field trial at a former uranium leaching heap site near Ronneburg, Germany, we could show the efficacy under field conditions. Different metals could be extracted at the same time, with varying microbial inoculation and soil amendment scenarios possible when a certain metal is the focus of interest. Especially, manganese was extracted at very high levels which might be useful even for phytomining approaches.
Collapse
Affiliation(s)
- René Phieler
- Microbial Communication, Institute of Microbiology, Friedrich Schiller University, Neugasse 25, 07743, Jena, Germany
| | - Dirk Merten
- Applied Geology, Institute of Earth Science, Friedrich Schiller University, Burgweg 11, 07749, Jena, Germany
| | - Martin Roth
- Bio Pilot Plant, Leibniz Institute for Natural Product Research and Infection Biology - Hans Knöll-Institute, Beutenbergstraße 11a, 07745, Jena, Germany
| | - Georg Büchel
- Applied Geology, Institute of Earth Science, Friedrich Schiller University, Burgweg 11, 07749, Jena, Germany
| | - Erika Kothe
- Microbial Communication, Institute of Microbiology, Friedrich Schiller University, Neugasse 25, 07743, Jena, Germany.
| |
Collapse
|