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Chen X, Li L, He Y. Epiphytic and endophytic bacteria on Camellia oleifera phyllosphere: exploring region and cultivar effect. BMC Ecol Evol 2024; 24:62. [PMID: 38735962 PMCID: PMC11089727 DOI: 10.1186/s12862-024-02240-3] [Citation(s) in RCA: 0] [Impact Index Per Article: 0] [Reference Citation Analysis] [Abstract] [Key Words] [MESH Headings] [Grants] [Track Full Text] [Journal Information] [Subscribe] [Scholar Register] [Received: 01/13/2023] [Accepted: 04/10/2024] [Indexed: 05/14/2024] Open
Abstract
The epiphytic and endophytic bacteria play an important role in the healthy growth of plants. Both plant species and growth environmental influence the bacterial population diversity, yet it is inconclusive whether it is the former or the latter that has a greater impact. To explore the communities of the epiphytic and endophytic microbes in Camellia oleifera, this study assessed three representative C. oleifera cultivars from three areas in Hunan, China by Illumina high-throughput sequencing. The results showed that the diversity and species richness of endophytic microbial community in leaves were significantly higher than those of microbial community in the epiphytic. The diversity and species richness of epiphytic and endophytic microbes are complex when the same cultivar was grown in different areas. The C. oleifera cultivars grown in Youxian had the highest diversity of epiphytic microbial community, but the lowest abundance, while the cultivars grown in Changsha had the highest diversity and species richness of endophytic microbes in leaves. It was concluded that the dominant phylum mainly included Proteobacteria, Actinobacteriota and Firmicutes through the analysis of the epiphytic and endophytic microbial communities of C. oleifera. The species and relative abundances of epiphytic and endophytic microbial community were extremely different at the genus level. The analysis of NMDS map and PERMANOVA shows that the species richness and diversity of microbial communities in epiphytes are greatly influenced by region. However, the community structure of endophytic microorganisms in leaves is influenced by region and cultivated varieties, but the influence of cultivars is more significant. Molecular ecological network analysis showed that the symbiotic interaction of epiphytic microbial community was more complex.
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Affiliation(s)
- Xiaolin Chen
- Key Laboratory of National Forestry and Grassland Administration On Control of Artificial Forest Diseases and Pests in South China, Hunan Provincial Key Laboratory for Control of Forest Diseases and Pests, Key Laboratory for Non-Wood Forest Cultivation and Conservation of Ministry of Education, Key Laboratory of Forest Bio-Resources and Integrated Pest Management for Higher Education in Hunan Province, College of Forestry, Central South University of Forestry and Technology, Changsha, China
- Ordos Forestry and Grassland Development Center, Ordos, China
| | - Lili Li
- Key Laboratory of National Forestry and Grassland Administration On Control of Artificial Forest Diseases and Pests in South China, Hunan Provincial Key Laboratory for Control of Forest Diseases and Pests, Key Laboratory for Non-Wood Forest Cultivation and Conservation of Ministry of Education, Key Laboratory of Forest Bio-Resources and Integrated Pest Management for Higher Education in Hunan Province, College of Forestry, Central South University of Forestry and Technology, Changsha, China
| | - Yuanhao He
- Key Laboratory of National Forestry and Grassland Administration On Control of Artificial Forest Diseases and Pests in South China, Hunan Provincial Key Laboratory for Control of Forest Diseases and Pests, Key Laboratory for Non-Wood Forest Cultivation and Conservation of Ministry of Education, Key Laboratory of Forest Bio-Resources and Integrated Pest Management for Higher Education in Hunan Province, College of Forestry, Central South University of Forestry and Technology, Changsha, China.
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Ibrahim A, El-Fakharany EM, Abu-Serie MM, ElKady MF, Eltarahony M. Methyl Orange Biodegradation by Immobilized Consortium Microspheres: Experimental Design Approach, Toxicity Study and Bioaugmentation Potential. BIOLOGY 2022; 11:76. [PMID: 35053074 PMCID: PMC8772785 DOI: 10.3390/biology11010076] [Citation(s) in RCA: 11] [Impact Index Per Article: 5.5] [Reference Citation Analysis] [Abstract] [Key Words] [Track Full Text] [Download PDF] [Figures] [Subscribe] [Scholar Register] [Received: 12/06/2021] [Revised: 12/24/2021] [Accepted: 12/27/2021] [Indexed: 12/12/2022]
Abstract
Methyl orange (MO) is categorized among the recalcitrant and refractory xenobiotics, representing a significant burden in the ecosystem. To clean-up the surrounding environment, advances in microbial degradation have been made. The main objective of this study was to investigate the extent to which an autochthonous consortium immobilized in alginate beads can promote an efficient biodegradation of MO. By employing response surface methodology (RSM), a parametric model explained the interaction of immobilized consortium (Raoultella planticola, Ochrobactrum thiophenivorans, Bacillus flexus and Staphylococcus xylosus) to assimilate 200 mg/L of MO in the presence of 40 g/L of NaCl within 120 h. Physicochemical analysis, including UV-Vis spectroscopy and FTIR, and monitoring of the degrading enzymes (azoreductase, DCIP reductase, NADH reductase, laccase, LiP, MnP, nitrate reductase and tyrosinase) were used to evaluate MO degradation. In addition, the toxicity of MO-degradation products was investigated by means of phytotoxicity and cytotoxicity. Chlorella vulgaris retained its photosynthetic performance (>78%), as shown by the contents of chlorophyll-a, chlorophyll-b and carotenoids. The viability of normal lung and kidney cell lines was recorded to be 90.63% and 99.23%, respectively, upon exposure to MO-metabolic outcomes. These results reflect the non-toxicity of treated samples, implying their utilization in ferti-irrigation applications and industrial cooling systems. Moreover, the immobilized consortium was employed in the bioremediation of MO from artificially contaminated agricultural and industrial effluents, in augmented and non-augmented systems. Bacterial consortium remediated MO by 155 and 128.5 mg/L in augmented systems of agricultural and industrial effluents, respectively, within 144 h, revealing its mutual synergistic interaction with both indigenous microbiotas despite differences in their chemical, physical and microbial contents. These promising results encourage the application of immobilized consortium in bioaugmentation studies using different resources.
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Affiliation(s)
- Amany Ibrahim
- Botany Department, Faculty of Women for Arts, Science and Education, Ain Shams University, Cairo 11566, Egypt
- Department of Biology, College of Science, Taif University, P.O. Box 11099, Taif 21944, Saudi Arabia
| | - Esmail M. El-Fakharany
- Protein Research Department, Genetic Engineering and Biotechnology Research Institute (GEBRI), City of Scientific Research and Technological Applications (SRTA-City), New Borg El-Arab City, Alexandria 21934, Egypt
| | - Marwa M. Abu-Serie
- Medical Biotechnology Department, Genetic Engineering and Biotechnology Research Institute (GEBRI), City of Scientific Research and Technological Applications (SRTA-City), New Borg El-Arab City, Alexandria 21934, Egypt;
| | - Marwa F. ElKady
- Chemical and Petrochemical Engineering Department, Egypt-Japan University for Science and Technology, New Borg El-Arab City, Alexandria 21934, Egypt;
- Fabrication Technology Researches Department, Advanced Technology and New Materials Research Institute, City of Scientific Research and Technological Applications (SRTA-City), New Borg El-Arab City, Alexandria 21934, Egypt
| | - Marwa Eltarahony
- Environmental Biotechnology Department, Genetic Engineering and Biotechnology Research Institute (GEBRI), City of Scientific Research and Technological Applications (SRTA-City), New Borg El-Arab City, Alexandria 21934, Egypt
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Wang J, Guo H, Huang J, Jiang S, Hou S, Chen X, Lv H, Bi X, Hou M, Lin H, Lu Y, Qiao J, Yang R, Liu S. L-Lactic acid production from fructose by chitosan film-coated sodium alginate-polyvinyl alcohol immobilized Lactobacillus pentosus cells and its kinetic analysis. BIORESOUR BIOPROCESS 2021; 8:27. [PMID: 38650211 PMCID: PMC10992738 DOI: 10.1186/s40643-021-00380-8] [Citation(s) in RCA: 2] [Impact Index Per Article: 0.7] [Reference Citation Analysis] [Abstract] [Key Words] [Track Full Text] [Journal Information] [Subscribe] [Scholar Register] [Received: 01/15/2021] [Accepted: 03/30/2021] [Indexed: 12/12/2022] Open
Abstract
Under the optimal conditions of immobilization and fermentation, the highest LA yield of 0.966 ± 0.006 g/g fructose and production rate of 2.426 ± 0.018 g/(L × h) with an error of -0.5% and -0.2% to the predicted results were obtained from batch fermentation by the CS film-coated SA-PVA immobilized L. pentosus cells. The LA yield and production rate of these immobilized cells were 2.7% and 10.1% higher than that of normal SA-PVA immobilized cells respectively, and they were 5.7% and 48.4% higher than that of free cells, respectively. The effect of temperature on different types of immobilized cells and free cells was significantly different, but the effect of pH on different types of cells was not much different. The kinetic models could effectively describe the different fermentation performances of three types of cells. The immobilized cells have excellent reusability to conduct 9 runs of repeated batch fermentation.
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Affiliation(s)
- Jianfei Wang
- Department of Chemical Engineering, SUNY College of Environmental Science and Forestry, Syracuse, NY13210, USA
| | - Huanyu Guo
- Department of Chemical Engineering, SUNY College of Environmental Science and Forestry, Syracuse, NY13210, USA
| | - Jiaqi Huang
- Department of Chemical Engineering, SUNY College of Environmental Science and Forestry, Syracuse, NY13210, USA
- The Center for Biotechnology and Interdisciplinary Studies (CBIS) at Rensselaer Polytechnic Institute, Troy, NY12180, USA
| | - Shaoming Jiang
- Department of Chemical Engineering, SUNY College of Environmental Science and Forestry, Syracuse, NY13210, USA
| | - Shibo Hou
- Department of Chemical Engineering, SUNY College of Environmental Science and Forestry, Syracuse, NY13210, USA
| | - Xingyu Chen
- Department of Chemical Engineering, SUNY College of Environmental Science and Forestry, Syracuse, NY13210, USA
| | - Hujie Lv
- Department of Chemical Engineering, SUNY College of Environmental Science and Forestry, Syracuse, NY13210, USA
| | - Xudong Bi
- Department of Chemical Engineering, SUNY College of Environmental Science and Forestry, Syracuse, NY13210, USA
- California State University, Los Angeles (CSULA), Los Angeles, CA, 90032, USA
| | - Maolin Hou
- Department of Chemical Engineering, SUNY College of Environmental Science and Forestry, Syracuse, NY13210, USA
- Department of Biomedical Engineering, City University of Hong Kong, Hong Kong, 999077, China
| | - Hebei Lin
- Department of Chemical Engineering, SUNY College of Environmental Science and Forestry, Syracuse, NY13210, USA
| | - Yuming Lu
- Department of Chemical Engineering, SUNY College of Environmental Science and Forestry, Syracuse, NY13210, USA
| | - Jinyue Qiao
- Department of Chemical Engineering, SUNY College of Environmental Science and Forestry, Syracuse, NY13210, USA
| | - Ruiyi Yang
- Department of Chemical Engineering, SUNY College of Environmental Science and Forestry, Syracuse, NY13210, USA
| | - Shijie Liu
- Department of Chemical Engineering, SUNY College of Environmental Science and Forestry, Syracuse, NY13210, USA.
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