1
|
Bagul VP, Annapure US. Isolation of fast-growing thraustochytrids and seasonal variation on the fatty acid composition of thraustochytrids from mangrove regions of Navi Mumbai, India. JOURNAL OF ENVIRONMENTAL MANAGEMENT 2021; 290:112597. [PMID: 33878627 DOI: 10.1016/j.jenvman.2021.112597] [Citation(s) in RCA: 3] [Impact Index Per Article: 1.0] [Reference Citation Analysis] [Abstract] [Key Words] [MESH Headings] [Track Full Text] [Subscribe] [Scholar Register] [Received: 12/14/2020] [Revised: 03/07/2021] [Accepted: 04/09/2021] [Indexed: 06/12/2023]
Abstract
This study was aimed to isolate fast-growing thraustochytrids and the influence of seasonal variation in fatty acid composition from the mangrove habitat. The thraustochytrids were isolated from fallen yellowish or green mangrove leaves, in four seasons, including winter, summer, rainy, and post rainy season in one year. The thraustochytrids were analyzed for biomass production, total lipid content, and fatty acid profile. The thraustochytrid isolates showed biomass yield and total lipid content in the range of 14.12 ± 0.69 to 22.98 ± 0.53 g/L and 34.98-58.86% per dry cell weight, respectively. The isolates showed two dominant fatty acids, palmitic acid (PA) as saturated fatty acid (SFA) and docosahexaenoic acid (DHA) as long-chain polyunsaturated fatty acids (LC-PUFA) in total fatty acid (TFA) content. The significant differences (P < 0.05) were observed for seasonal variations in SFA and DHA content in summer isolates and winter isolates. The maximum DHA content with 47.12% of TFA, recorded in winter (January) isolates and summer (April) isolates with SFA 68.82% of TFA. The results from this study were verified the hypothesis that the presence of high DHA producing thraustochytrids in lower temperature season in the same habitat. These findings have also emphasized the role of the environmental temperature conditions and the importance of thraustochytrid fatty acid composition as a dietary biomarker. Also, it revealed the ecological significance of thraustochytrid in DHA enrichment in the food web of the marine ecosystem. These findings could be useful while isolating thraustochytrids according to seasons for industrial application for omega 3 fatty acids and biodiesel production.
Collapse
Affiliation(s)
- Vaishali P Bagul
- Department of Food Engineering and Technology, Institute of Chemical Technology, Nathalal Parekh Marg, Matunga, Mumbai, 400019, India
| | - Uday S Annapure
- Department of Food Engineering and Technology, Institute of Chemical Technology, Nathalal Parekh Marg, Matunga, Mumbai, 400019, India.
| |
Collapse
|
2
|
Yu XJ, Huang CY, Chen H, Wang DS, Chen JL, Li HJ, Liu XY, Wang Z, Sun J, Wang ZP. High-Throughput Biochemical Fingerprinting of Oleaginous Aurantiochytrium sp. Strains by Fourier Transform Infrared Spectroscopy (FT-IR) for Lipid and Carbohydrate Productions. Molecules 2019; 24:molecules24081593. [PMID: 31013676 PMCID: PMC6514702 DOI: 10.3390/molecules24081593] [Citation(s) in RCA: 8] [Impact Index Per Article: 1.6] [Reference Citation Analysis] [Abstract] [Key Words] [MESH Headings] [Track Full Text] [Download PDF] [Figures] [Journal Information] [Subscribe] [Scholar Register] [Received: 03/20/2019] [Revised: 04/19/2019] [Accepted: 04/19/2019] [Indexed: 11/16/2022] Open
Abstract
The traditional biochemical methods for analyzing cellular composition of oleaginous microorganisms are time-consuming, polluting, and expensive. In the present study, an FT-IR method was used to analyze the cellular composition of the marine oleaginous protist Aurantiochytrium sp. during various research processes, such as strains screening, medium optimization, and fermentation, and was evaluated as a green, low-cost, high throughput, and accurate method compared with the traditional methods. A total of 109 Aurantiochytrium sp. strains were screened for lipid and carbohydrate production and the best results were found for the strains No. 6 and No. 32. The yields and productivities could reach up to 47.2 g/L and 0.72 g/L/h for lipid, 21.6 g/L and 0.33 g/L/h for docosahexaenoic acid (DHA) in the strain No. 6, and 15.4 g/L and 0.18 g/L/h for carbohydrate in the strain No. 32, under the optimal conditions, respectively. These results confirmed potentials of the two Aurantiochytrium sp. strains for lipid, DHA, and carbohydrate productions at industrial scales. The FT-IR method in this study will facilitate research on the oleaginous Aurantiochytrium sp., and the obtained two strains for lipid and carbohydrate productions will provide the foundations for their applications in medical, food, and feed industries.
Collapse
Affiliation(s)
- Xin-Jun Yu
- Key Laboratory of Bioorganic Synthesis of Zhejiang Province, College of Biotechnology and Bioengineering, Zhejiang University of Technology, No.18, Chaowang Road, Hangzhou 310014, Zhejiang, China.
| | - Chang-Yi Huang
- Key Laboratory of Bioorganic Synthesis of Zhejiang Province, College of Biotechnology and Bioengineering, Zhejiang University of Technology, No.18, Chaowang Road, Hangzhou 310014, Zhejiang, China.
| | - Hong Chen
- Key Laboratory of Bioorganic Synthesis of Zhejiang Province, College of Biotechnology and Bioengineering, Zhejiang University of Technology, No.18, Chaowang Road, Hangzhou 310014, Zhejiang, China.
| | - Dong-Sheng Wang
- Institute of Biological Resources, Jiangxi Academy of Sciences, Nanchang 330096, Jiangxi, China.
| | - Jing-Liang Chen
- Key Laboratory of Bioorganic Synthesis of Zhejiang Province, College of Biotechnology and Bioengineering, Zhejiang University of Technology, No.18, Chaowang Road, Hangzhou 310014, Zhejiang, China.
| | - Hui-Juan Li
- Department of Bioengineering, College of Chemical and Environmental Engineering, Shandong University of Science and Technology, Qingdao 266590, China.
| | - Xiao-Yan Liu
- Jiangsu Key Laboratory for Biomass-based Energy and Enzyme Technology, Huaiyin Normal University, Huaian 223300, Jiangsu, China.
| | - Zhao Wang
- Key Laboratory of Bioorganic Synthesis of Zhejiang Province, College of Biotechnology and Bioengineering, Zhejiang University of Technology, No.18, Chaowang Road, Hangzhou 310014, Zhejiang, China.
| | - Jie Sun
- Key Laboratory of Bioorganic Synthesis of Zhejiang Province, College of Biotechnology and Bioengineering, Zhejiang University of Technology, No.18, Chaowang Road, Hangzhou 310014, Zhejiang, China.
| | - Zhi-Peng Wang
- Key Laboratory of Sustainable Development of Polar Fishery, Ministry of Agriculture and Rural Affairs, Yellow Sea Fisheries Research Institute, Chinese Academy of Fishery Sciences, Qingdao 266071, Shandong, China.
| |
Collapse
|
3
|
Genomics, Biology and Phylogeny Aurantiochytrium acetophilum sp. nov. (Thraustrochytriaceae), Including First Evidence of Sexual Reproduction. Protist 2019; 170:209-232. [DOI: 10.1016/j.protis.2019.02.004] [Citation(s) in RCA: 22] [Impact Index Per Article: 4.4] [Reference Citation Analysis] [Track Full Text] [Journal Information] [Subscribe] [Scholar Register] [Received: 12/03/2018] [Revised: 02/25/2019] [Accepted: 02/26/2019] [Indexed: 01/06/2023]
|
4
|
Bai M, Sen B, Wang Q, Xie Y, He Y, Wang G. Molecular Detection and Spatiotemporal Characterization of Labyrinthulomycete Protist Diversity in the Coastal Waters Along the Pearl River Delta. MICROBIAL ECOLOGY 2019; 77:394-405. [PMID: 30083828 DOI: 10.1007/s00248-018-1235-8] [Citation(s) in RCA: 18] [Impact Index Per Article: 3.6] [Reference Citation Analysis] [Abstract] [Key Words] [MESH Headings] [Track Full Text] [Subscribe] [Scholar Register] [Received: 04/20/2018] [Accepted: 07/16/2018] [Indexed: 06/08/2023]
Abstract
The heterotrophic labyrinthulomycete protists have long been known to play an important role in the nutrient cycling of coastal seawater. Yet, their spatiotemporal abundance and diversity in polluted coastal waters remain poorly discussed, due in part to the paucity of a rapid detection method. To this end, we developed a qPCR detection method based on a newly designed primer pair targeting their 18S rRNA gene. Using this method, we studied the population dynamics of labyrinthulomycete protists in nutrient-rich (Shenzhen Bay) and low-nutrient (Daya) coastal habitats along the Pearl River Delta. We found a significantly (P < 0.05) higher abundance of Labyrinthulomycetes in the Shenzhen bay (average 3455 gene copies mL-1) than that in Daya Bay (average 378 gene copies mL-1). Their abundance gradient positively correlated (P < 0.05) with the levels of inorganic nitrogen and phosphates. Further characterization of the molecular diversity of these protists in Shenzhen Bay using different primer sets revealed the presence of several genera besides a large number of unclassified OTUs. Regardless of the primer biases, our results show significant (P < 0.05) spatiotemporal changes in the molecular abundance and diversity of these heterotrophic protists. Overall, this study provides a rapid molecular detection tool for Labyrinthulomycetes and expands our current understanding of their dynamics controlled by physicochemical gradients in coastal waters.
Collapse
Affiliation(s)
- Mohan Bai
- Center for Marine Environmental Ecology, School of Environmental Science and Engineering, Tianjin University, Tianjin, 300072, China
| | - Biswarup Sen
- Center for Marine Environmental Ecology, School of Environmental Science and Engineering, Tianjin University, Tianjin, 300072, China
| | - Qiuzhen Wang
- Center for Marine Environmental Ecology, School of Environmental Science and Engineering, Tianjin University, Tianjin, 300072, China
| | - Yunxuan Xie
- Center for Marine Environmental Ecology, School of Environmental Science and Engineering, Tianjin University, Tianjin, 300072, China
| | - Yaodong He
- Center for Marine Environmental Ecology, School of Environmental Science and Engineering, Tianjin University, Tianjin, 300072, China
| | - Guangyi Wang
- Center for Marine Environmental Ecology, School of Environmental Science and Engineering, Tianjin University, Tianjin, 300072, China.
- Key Laboratory of Systems Bioengineering (Ministry of Education), Tianjin University, Tianjin, 300072, China.
| |
Collapse
|
5
|
Zhang K, Chen L, Liu J, Gao F, He R, Chen W, Guo W, Chen S, Li D. Effects of butanol on high value product production in Schizochytrium limacinum B4D1. Enzyme Microb Technol 2017; 102:9-15. [DOI: 10.1016/j.enzmictec.2017.03.007] [Citation(s) in RCA: 24] [Impact Index Per Article: 3.4] [Reference Citation Analysis] [Track Full Text] [Journal Information] [Subscribe] [Scholar Register] [Received: 01/12/2017] [Revised: 02/21/2017] [Accepted: 03/14/2017] [Indexed: 11/29/2022]
|
6
|
Suen YL, Tang H, Huang J, Chen F. Enhanced production of fatty acids and astaxanthin in Aurantiochytrium sp. by the expression of Vitreoscilla hemoglobin. JOURNAL OF AGRICULTURAL AND FOOD CHEMISTRY 2014; 62:12392-12398. [PMID: 25420960 DOI: 10.1021/jf5048578] [Citation(s) in RCA: 42] [Impact Index Per Article: 4.2] [Reference Citation Analysis] [Abstract] [Key Words] [MESH Headings] [Track Full Text] [Subscribe] [Scholar Register] [Indexed: 06/04/2023]
Abstract
Dissolved oxygen is a critical factor for heterotrophic cell growth and metabolite production. The aim of this study was to investigate the effects of an oxygen-involved protein on cell growth and fatty acid and astaxanthin production in the biologically important thraustochytrid Aurantiochytrium sp. The hemoglobin of the Vitreoscilla stercoraria (VHb) gene was fused upstream with a zeocin resistance gene (ble) and driven by the Aurantiochytrium tubulin promoter. The expression construct was introduced into two strains of Aurantiochytrium sp. by electroporation. Transgenic Aurantiochytrium sp. strains MP4 and SK4 expressing the heterologous VHb achieved significantly higher maximum biomass than their corresponding controls in microaerobic conditions. Furthermore, the transformants of Aurantiochytrium sp. SK4 produced 44% higher total fatty acid and 9-fold higher astaxanthin contents than the wild type control in aerobic conditions. The present study highlights the biotechnological application of VHb in high-cell density fermentation for enhanced biomass production as well as high-value metabolites.
Collapse
Affiliation(s)
- Yung Lee Suen
- School of Biological Sciences, The University of Hong Kong , Pokfulam Road, Hong Kong, China
| | | | | | | |
Collapse
|
7
|
Santagapita P, Rosa S, Mazzobre MF, Cueto M, de Pilar Buera M, Galvagno M. Differential scanning calorimetry evaluation of oxidation stability of docosahexaenoic acid in microalgae cells and their extracts. Int J Food Sci Technol 2013. [DOI: 10.1111/ijfs.12144] [Citation(s) in RCA: 1] [Impact Index Per Article: 0.1] [Reference Citation Analysis] [Track Full Text] [Journal Information] [Subscribe] [Scholar Register] [Indexed: 11/26/2022]
Affiliation(s)
- Patricio Santagapita
- Departamento de Industrias y Departamento de Química Orgánica; Facultad de Ciencias Exactas y Naturales; Universidad de Buenos Aires (FCEyN-UBA) & Consejo Nacional de Investigaciones Científicas y Tecnológicas (CONICET), Intendente Güiraldes 2160, CP 1428; Buenos Aires; Argentina
| | - Silvina Rosa
- INGEBI-(CONICET), Vuelta de Obligado 2490, CP 1428; Ciudad de Buenos Aires; Argentina
| | - María Florencia Mazzobre
- Departamento de Industrias y Departamento de Química Orgánica; Facultad de Ciencias Exactas y Naturales; Universidad de Buenos Aires (FCEyN-UBA) & Consejo Nacional de Investigaciones Científicas y Tecnológicas (CONICET), Intendente Güiraldes 2160, CP 1428; Buenos Aires; Argentina
| | - Mario Cueto
- Departamento de Industrias y Departamento de Química Orgánica; Facultad de Ciencias Exactas y Naturales; Universidad de Buenos Aires (FCEyN-UBA) & Consejo Nacional de Investigaciones Científicas y Tecnológicas (CONICET), Intendente Güiraldes 2160, CP 1428; Buenos Aires; Argentina
| | - María de Pilar Buera
- Departamento de Industrias y Departamento de Química Orgánica; Facultad de Ciencias Exactas y Naturales; Universidad de Buenos Aires (FCEyN-UBA) & Consejo Nacional de Investigaciones Científicas y Tecnológicas (CONICET), Intendente Güiraldes 2160, CP 1428; Buenos Aires; Argentina
| | | |
Collapse
|
8
|
Min KH, Lee HH, Anbu P, Chaulagain BP, Hur BK. The effects of culture condition on the growth property and docosahexaenoic acid production from Thraustochytrium aureum ATCC 34304. KOREAN J CHEM ENG 2012. [DOI: 10.1007/s11814-011-0287-y] [Citation(s) in RCA: 11] [Impact Index Per Article: 0.9] [Reference Citation Analysis] [Track Full Text] [Journal Information] [Subscribe] [Scholar Register] [Indexed: 10/28/2022]
|
9
|
Biodiscovery of new Australian thraustochytrids for production of biodiesel and long-chain omega-3 oils. Appl Microbiol Biotechnol 2012; 93:2215-31. [PMID: 22252264 DOI: 10.1007/s00253-011-3856-4] [Citation(s) in RCA: 65] [Impact Index Per Article: 5.4] [Reference Citation Analysis] [Abstract] [Track Full Text] [Journal Information] [Subscribe] [Scholar Register] [Received: 09/30/2011] [Revised: 12/18/2011] [Accepted: 12/20/2011] [Indexed: 10/14/2022]
Abstract
Heterotrophic growth of thraustochytrids has potential in co-producing a feedstock for biodiesel and long-chain (LC, ≥C(20)) omega-3 oils. Biodiscovery of thraustochytrids from Tasmania (temperate) and Queensland (tropical), Australia, covered a biogeographic range of habitats including fresh, brackish, and marine waters. A total of 36 thraustochytrid strains were isolated and separated into eight chemotaxonomic groups (A-H) based on fatty acid (FA) and sterol composition which clustered closely with four different genera obtained by 18S rDNA molecular identification. Differences in the relative proportions (%FA) of long-chain C(20), C(22), omega-3, and omega-6 polyunsaturated fatty acids (PUFA), including docosahexaenoic acid (DHA), docosapentaenoic acid, arachidonic acid, eicosapentaenoic acid (EPA), and saturated FA, as well as the presence of odd-chain PUFA (OC-PUFA) were the major factors influencing the separation of these groups. OC-PUFA were detected in temperate strains of groups A, B, and C (Schizochytrium and Thraustochytrium). Group D (Ulkenia) had high omega-3 LC-PUFA (53% total fatty acids (TFA)) and EPA up to 11.2% TFA. Strains from groups E and F (Aurantiochytrium) contained DHA levels of 50-61% TFA after 7 days of growth in basal medium at 20 °C. Groups G and H (Aurantiochytrium) strains had high levels of 15:0 (20-30% TFA) and the sum of saturated FA was in the range of 32-51%. β,β-Carotene, canthaxanthin, and astaxanthin were identified in selected strains. Phylogenetic and chemotaxonomic groupings demonstrated similar patterns for the majority of strains. Our results demonstrate the potential of these new Australian thraustochytrids for the production of biodiesel in addition to omega-3 LC-PUFA-rich oils.
Collapse
|
10
|
Zoospore production and motility of mangrove thraustochytrids from Hong Kong under various salinities. MYCOSCIENCE 2012. [DOI: 10.1007/s10267-011-0127-2] [Citation(s) in RCA: 8] [Impact Index Per Article: 0.7] [Reference Citation Analysis] [Track Full Text] [Journal Information] [Subscribe] [Scholar Register] [Indexed: 11/26/2022]
|