1
|
Jeon MS, Han SI, Ahn JW, Jung JH, Choi JS, Choi YE. Endophyte Bacillus tequilensis improves the growth of microalgae Haematococcus lacustris by regulating host cell metabolism. BIORESOURCE TECHNOLOGY 2023; 387:129546. [PMID: 37488011 DOI: 10.1016/j.biortech.2023.129546] [Citation(s) in RCA: 1] [Impact Index Per Article: 1.0] [Reference Citation Analysis] [Abstract] [Key Words] [MESH Headings] [Track Full Text] [Subscribe] [Scholar Register] [Received: 07/06/2023] [Revised: 07/21/2023] [Accepted: 07/21/2023] [Indexed: 07/26/2023]
Abstract
This study identified an endosymbiotic bacterium, Bacillus tequilensis, residing within the cells of the microalga Haematococcus lacustris through 16S rRNA analysis. To confirm the optimal interactive conditions between H. lacustris and B. tequilensis, the effects of different ratios of cells using H. lacustris of different growth stages were examined. Under optimized conditions, the cell density, dry weight, chlorophyll content, and astaxanthin content of H. lacustris increased significantly, and the fatty acid content improved 1.99-fold. Microscopy demonstrated the presence of bacteria within the H. lacustris cells. The interaction upregulated amino acid and nucleotide metabolism in H. lacustris. Interestingly, muramic and phenylacetic acids were found exclusively in H. lacustris cells in the presence of B. tequilensis. Furthermore, B. tequilensis delayed pigment degradation in H. lacustris. This study reveals the impact of the endosymbiont B. tequilensis on the metabolism of H. lacustris and offers new perspectives on the symbiotic relationship between them.
Collapse
Affiliation(s)
- Min Seo Jeon
- Advanced Radiation Technology Institute, Korea Atomic Energy Research Institute, Jeongeup 56212, Republic of Korea
| | - Sang-Il Han
- Advanced Radiation Technology Institute, Korea Atomic Energy Research Institute, Jeongeup 56212, Republic of Korea
| | - Joon-Woo Ahn
- Advanced Radiation Technology Institute, Korea Atomic Energy Research Institute, Jeongeup 56212, Republic of Korea
| | - Jong-Hyun Jung
- Advanced Radiation Technology Institute, Korea Atomic Energy Research Institute, Jeongeup 56212, Republic of Korea
| | - Jong-Soon Choi
- Division of Analytical Science, Korea Basic Science, Institute, Daejeon 34133, Republic of Korea
| | - Yoon-E Choi
- Division of Environmental Science & Ecological Engineering, Korea University, Seoul 02841, Republic of Korea.
| |
Collapse
|
2
|
Kinopus chlorellivorus
gen. nov., sp. nov. (Vampyrellida, Rhizaria), a New Algivorous Protist Predator Isolated from Large-Scale Outdoor Cultures of
Chlorella sorokiniana. Appl Environ Microbiol 2022; 88:e0121522. [PMID: 36300943 PMCID: PMC9680614 DOI: 10.1128/aem.01215-22] [Citation(s) in RCA: 0] [Impact Index Per Article: 0] [Reference Citation Analysis] [Abstract] [Track Full Text] [Journal Information] [Subscribe] [Scholar Register] [Indexed: 11/20/2022] Open
Abstract
The vampyrellids (Vampyrellida, Rhizaria) are a major group of predatory amoebae that have attracted significant attention because of their diversity of feeding strategies. The crucial roles they play in important processes such as suppressing soil disease and controlling aquatic algae, and as microbial contaminants in outdoor large-scale algal cultures, have also received increasing attention.
Collapse
|
3
|
Lin J, Chen Y, Yan H, Nahidian B, Hu Q, Han D. High-throughput fluorescence-activated cell sorting for cell wall-deficient microalgal mutants screening. ALGAL RES 2020. [DOI: 10.1016/j.algal.2020.102011] [Citation(s) in RCA: 8] [Impact Index Per Article: 2.0] [Reference Citation Analysis] [Track Full Text] [Journal Information] [Subscribe] [Scholar Register] [Indexed: 11/25/2022]
|
4
|
Khatiwada B, Sunna A, Nevalainen H. Molecular tools and applications of Euglena gracilis: From biorefineries to bioremediation. Biotechnol Bioeng 2020; 117:3952-3967. [PMID: 32710635 DOI: 10.1002/bit.27516] [Citation(s) in RCA: 11] [Impact Index Per Article: 2.8] [Reference Citation Analysis] [Abstract] [Key Words] [Track Full Text] [Journal Information] [Subscribe] [Scholar Register] [Received: 03/15/2020] [Revised: 06/17/2020] [Accepted: 07/23/2020] [Indexed: 12/19/2022]
Abstract
Euglena gracilis is a promising source of commercially important metabolites such as vitamins, wax esters, paramylon, and amino acids. However, the molecular tools available to create improved Euglena strains are limited compared to other microorganisms that are currently exploited in the biotechnology industry. The complex poly-endosymbiotic nature of the Euglena genome is a major bottleneck for obtaining a complete genome sequence and thus represents a notable shortcoming in gaining molecular information of this organism. Therefore, the studies and applications have been more focused on using the wild-type strain or its variants and optimizing the nutrient composition and cultivation conditions to enhance the production of biomass and valuable metabolites. In addition to producing metabolites, the E. gracilis biorefinery concept also provides means for the production of biofuels and biogas as well as residual biomass for the remediation of industrial and municipal wastewater. Using Euglena for bioremediation of environments contaminated with heavy metals is of special interest due to the strong ability of the organism to accumulate and sequester these compounds. The published draft genome and transcriptome will serve as a basis for further molecular studies of Euglena and provide a guide for the engineering of metabolic pathways of relevance for the already established as well as novel applications.
Collapse
Affiliation(s)
- Bishal Khatiwada
- Department Molecular Sciences, Macquarie University, Sydney, Australia.,Biomolecular Discovery and Design Research Centre, Macquarie University, Sydney, Australia
| | - Anwar Sunna
- Department Molecular Sciences, Macquarie University, Sydney, Australia.,Biomolecular Discovery and Design Research Centre, Macquarie University, Sydney, Australia
| | - Helena Nevalainen
- Department Molecular Sciences, Macquarie University, Sydney, Australia.,Biomolecular Discovery and Design Research Centre, Macquarie University, Sydney, Australia
| |
Collapse
|
5
|
Li X, Wang X, Duan C, Yi S, Gao Z, Xiao C, Agathos SN, Wang G, Li J. Biotechnological production of astaxanthin from the microalga Haematococcus pluvialis. Biotechnol Adv 2020; 43:107602. [PMID: 32711005 DOI: 10.1016/j.biotechadv.2020.107602] [Citation(s) in RCA: 87] [Impact Index Per Article: 21.8] [Reference Citation Analysis] [Abstract] [Key Words] [Track Full Text] [Journal Information] [Subscribe] [Scholar Register] [Received: 01/14/2020] [Revised: 07/05/2020] [Accepted: 07/13/2020] [Indexed: 01/14/2023]
Abstract
Although biotechnologies for astaxanthin production from Haematococcus pluvialis have been developed for decades and many production facilities have been established throughout the world, the production cost is still high. This paper is to evaluate the current production processes and production facilities, to analyze the R&D strategies for process improvement, and to review the recent research advances shedding light on production cost reduction. With these efforts being made, we intent to conclude that the production cost of astaxanthin from Haematococcus might be substantially reduced to the levels comparable to that of chemical astaxanthin through further R&D and the future research might need to focus on strain selection and improvement, cultivation process optimization, innovation of cultivation methodologies, and revolution of extraction technologies.
Collapse
Affiliation(s)
- Xin Li
- School of Biological and Chemical Engineering, Panzhihua University, Panzhihua, PR China
| | - Xiaoqian Wang
- School of Biological and Chemical Engineering, Panzhihua University, Panzhihua, PR China
| | - Chuanlan Duan
- School of Biological and Chemical Engineering, Panzhihua University, Panzhihua, PR China
| | - Shasha Yi
- School of Biological and Chemical Engineering, Panzhihua University, Panzhihua, PR China
| | - Zhengquan Gao
- School of Life Sciences, Shandong University of Technology, Zibo, PR China
| | - Chaowen Xiao
- College of Life Sciences, Sichuan University, Chengdu, PR China
| | - Spiros N Agathos
- Earth and Life Institute, Catholic University of Louvain, Louvain-la-Neuve, Belgium
| | - Guangce Wang
- Key Laboratory of Experimental Marine Biology, Institute of Oceanology, Chinese Academy of Sciences, Qingdao, PR China
| | - Jian Li
- School of Biological and Chemical Engineering, Panzhihua University, Panzhihua, PR China.
| |
Collapse
|
6
|
Zhu Y, Zhao X, Zhang X, Liu H. Extraction, structural and functional properties of Haematococcus pluvialis protein after pigment removal. Int J Biol Macromol 2019; 140:1073-1083. [DOI: 10.1016/j.ijbiomac.2019.08.209] [Citation(s) in RCA: 16] [Impact Index Per Article: 3.2] [Reference Citation Analysis] [Track Full Text] [Journal Information] [Subscribe] [Scholar Register] [Received: 06/06/2019] [Revised: 08/24/2019] [Accepted: 08/24/2019] [Indexed: 01/18/2023]
|
7
|
Astaxanthin accumulation in Haematococcus pluvialis observed through Fourier-transform infrared microspectroscopy imaging. J Mol Struct 2019. [DOI: 10.1016/j.molstruc.2019.01.026] [Citation(s) in RCA: 3] [Impact Index Per Article: 0.6] [Reference Citation Analysis] [Track Full Text] [Journal Information] [Subscribe] [Scholar Register] [Indexed: 11/21/2022]
|
8
|
Hong ME, Choi HI, Kwak HS, Hwang SW, Sung YJ, Chang WS, Sim SJ. Rapid selection of astaxanthin-hyperproducing Haematococcus mutant via azide-based colorimetric assay combined with oil-based astaxanthin extraction. BIORESOURCE TECHNOLOGY 2018; 267:175-181. [PMID: 30014996 DOI: 10.1016/j.biortech.2018.07.033] [Citation(s) in RCA: 13] [Impact Index Per Article: 2.2] [Reference Citation Analysis] [Abstract] [Key Words] [MESH Headings] [Track Full Text] [Subscribe] [Scholar Register] [Received: 05/25/2018] [Revised: 07/06/2018] [Accepted: 07/07/2018] [Indexed: 06/08/2023]
Abstract
The aim of this work was to develop a new approach for simple and high-throughput selection of astaxanthin-hyperproducing Haematococcus mutants through a sequential combination method of azide-based colorimetric assessment and oil-based astaxanthin quantification. Randomly mutagenized cells were spotted on solid culture medium containing 50 µM of sodium azide to accelerate the biosynthesis of astaxanthin. After 3 days, highly-induced mutants were preliminarily isolated by visual inspection and their astaxanthin accumulations were rapidly quantified by soybean oil-based extraction method. On the whole, the selected mutants showed reduced vegetative growth rates but eventually exhibited higher astaxanthin productions than the parental strain owing to their improved inductive growths. Among them, M13 showed 174.7 ± 5.69 mg L-1 of the highest astaxanthin production, which is 1.59-times higher than that of wild-type. This wide-scope screening method expedites both upstream and downstream astaxanthin quantification, making it a useful tool for isolating microalgae with high astaxanthin production.
Collapse
Affiliation(s)
- Min Eui Hong
- Department of Chemical and Biological Engineering, Korea University, 145, Anam-ro, Seongbuk-gu, Seoul 02841, South Korea
| | - Hong Il Choi
- Department of Chemical and Biological Engineering, Korea University, 145, Anam-ro, Seongbuk-gu, Seoul 02841, South Korea
| | - Ho Seok Kwak
- Department of Food Science and Engineering, Dongyang Mirae University, 445, Gyeongin-ro, Guro-gu, Seoul 08221, South Korea
| | - Sung-Won Hwang
- Department of Chemical and Biological Engineering, Korea University, 145, Anam-ro, Seongbuk-gu, Seoul 02841, South Korea
| | - Young Joon Sung
- Department of Chemical and Biological Engineering, Korea University, 145, Anam-ro, Seongbuk-gu, Seoul 02841, South Korea
| | - Won Seok Chang
- Research Institute, Korea District Heating Corp., 92, Gigok-ro, Giheung-gu, Yongin-si, Gyeonggi-do 17099, South Korea
| | - Sang Jun Sim
- Department of Chemical and Biological Engineering, Korea University, 145, Anam-ro, Seongbuk-gu, Seoul 02841, South Korea.
| |
Collapse
|
9
|
Liu JH, Zhang L, Zha DC, Chen LQ, Chen XX, Qi ZM. Biosorption of malachite green onto Haematococcus pluvialis observed through synchrotron Fourier-transform infrared microspectroscopy. Lett Appl Microbiol 2018; 67:348-353. [PMID: 29953633 DOI: 10.1111/lam.13043] [Citation(s) in RCA: 9] [Impact Index Per Article: 1.5] [Reference Citation Analysis] [Abstract] [Key Words] [Track Full Text] [Journal Information] [Subscribe] [Scholar Register] [Received: 03/28/2018] [Revised: 06/20/2018] [Accepted: 06/21/2018] [Indexed: 11/30/2022]
Abstract
Microalgae have emerged as promising biosorbents for the treatment of malachite green (MG) in wastewater. However, the underlying mechanism for the biosorption of MG onto microalgae is still unclear and needs further intensive study. In this work, synchrotron Fourier-transform infrared (s-FTIR) microspectroscopy in combination with biochemical assay is employed to evaluate MG removal efficiency (95·2%, 75·6% and 66·5%) by three stages of Haematococcus pluvialis. Meanwhile, the various vital changes of algal cells including lipids, proteins, polysaccharides and carotenoids is distinguished and quantified in situ. This study illustrates that s-FTIR microspectroscopy is an effective and powerful tool to scrutinize the mechanism for the interactions between the MG dye and microalgal cells, and it even provides an effective and noninvasive new approach to screen potentially proper biosorbents for the removal of dyes from wastewater. SIGNIFICANCE AND IMPACT OF THE STUDY Microalgae have potential application for their ability to absorb dyes from industrial wastewater. In this study, we initiated the application of synchrotron Fourier-transform infrared (s-FTIR) microspectroscopy to investigate malachite green dye removal efficiency by three stages of Haematococcus pluvialis, demonstrating that s-FTIR is a very powerful tool in exploring the mechanism of the biosorption of dyes onto microalgae.
Collapse
Affiliation(s)
- J H Liu
- College of Life and Health Science, Anhui Science and Technology University, Fengyang, China
| | - L Zhang
- College of Life and Health Science, Anhui Science and Technology University, Fengyang, China
| | - D C Zha
- College of Life and Health Science, Anhui Science and Technology University, Fengyang, China
| | - L Q Chen
- College of Life and Health Science, Anhui Science and Technology University, Fengyang, China
| | - X X Chen
- College of Life and Health Science, Anhui Science and Technology University, Fengyang, China
| | - Z M Qi
- National Synchrotron Radiation Laboratory, University of Science and Technology of China, Hefei, China
| |
Collapse
|
10
|
Cheng T, Xu X, Zhang W, Chen L, Liu T. Protoplast preparation from enriched flagellates and resting cells ofHaematococcus pluvialis. J Appl Microbiol 2018; 124:469-479. [DOI: 10.1111/jam.13643] [Citation(s) in RCA: 8] [Impact Index Per Article: 1.3] [Reference Citation Analysis] [Track Full Text] [Journal Information] [Subscribe] [Scholar Register] [Received: 09/20/2016] [Revised: 10/18/2017] [Accepted: 11/13/2017] [Indexed: 12/17/2022]
Affiliation(s)
- T. Cheng
- Key Laboratory of Biofuels; Qingdao Institute of Bioenergy and Bioprocess Technology; Chinese Academy of Sciences; Qingdao Shandong China
- University of Chinese Academy of Sciences; Beijing China
| | - X. Xu
- Key Laboratory of Biofuels; Qingdao Institute of Bioenergy and Bioprocess Technology; Chinese Academy of Sciences; Qingdao Shandong China
- University of Chinese Academy of Sciences; Beijing China
| | - W. Zhang
- Key Laboratory of Biofuels; Qingdao Institute of Bioenergy and Bioprocess Technology; Chinese Academy of Sciences; Qingdao Shandong China
| | - L. Chen
- Key Laboratory of Biofuels; Qingdao Institute of Bioenergy and Bioprocess Technology; Chinese Academy of Sciences; Qingdao Shandong China
| | - T. Liu
- Key Laboratory of Biofuels; Qingdao Institute of Bioenergy and Bioprocess Technology; Chinese Academy of Sciences; Qingdao Shandong China
| |
Collapse
|
11
|
|
12
|
Liu J, Huang Q. Screening of Astaxanthin-Hyperproducing Haematococcus pluvialis Using Fourier Transform Infrared (FT-IR) and Raman Microspectroscopy. APPLIED SPECTROSCOPY 2016; 70:1639-1648. [PMID: 27296305 DOI: 10.1177/0003702816645605] [Citation(s) in RCA: 23] [Impact Index Per Article: 2.9] [Reference Citation Analysis] [Abstract] [Key Words] [Track Full Text] [Subscribe] [Scholar Register] [Received: 10/01/2015] [Accepted: 01/17/2016] [Indexed: 06/06/2023]
Abstract
Haematococcus pluvialis has promising applications owing to its ability to accumulate astaxanthin under stress conditions. In order to acquire higher astaxanthin productivity from H. pluvialis, it is critical not only to develop efficient mutagenesis techniques, but also to establish rapid and effective screening methods which are highly demanded in current research and application practice. In this work, we therefore attempted to develop a new approach to screening the astaxanthin-hyperproducing strains based on spectroscopic tools. Using Fourier transform infrared (FT-IR) and Raman microspectroscopy, we have achieved rapid and quantitative analysis of the algal cells in terms of astaxanthin, β-carotene, proteins, lipids, and carbohydrates. In particular, we have found that the ratio of the IR absorption band at 1740 cm-1 to the band at 1156 cm-1 can be utilized for identifying astaxanthin-hyperproducing strains. This work may therefore open a new avenue for developing high-throughput screening methods necessary for the microbial mutant breeding industry.
Collapse
Affiliation(s)
- Jinghua Liu
- Institute of Technical Biology and Agriculture Engineering, Hefei Institutes of Physical Science, Key Lab of Ion-Beam Bioengineering, Chinese Academy of Sciences, Hefei, China School of Life Science, University of Science and Technology of China, Hefei, China
| | - Qing Huang
- Institute of Technical Biology and Agriculture Engineering, Hefei Institutes of Physical Science, Key Lab of Ion-Beam Bioengineering, Chinese Academy of Sciences, Hefei, China School of Life Science, University of Science and Technology of China, Hefei, China School of Nuclear Science and Technology, University of Science and Technology of China, Hefei, China
| |
Collapse
|
13
|
Liu J, Song L, Huang Q. Rapid screening astaxanthin-hyperproducing Haematococcus pluvialis
mutants through near-infrared spectroscopy. Lett Appl Microbiol 2016; 62:185-91. [DOI: 10.1111/lam.12531] [Citation(s) in RCA: 4] [Impact Index Per Article: 0.5] [Reference Citation Analysis] [Track Full Text] [Journal Information] [Subscribe] [Scholar Register] [Received: 09/17/2015] [Revised: 11/21/2015] [Accepted: 11/23/2015] [Indexed: 11/26/2022]
Affiliation(s)
- J.H. Liu
- Key Laboratory of Ion Beam Bioengineering; Institute of Technical Biology and Agriculture Engineering; Hefei Institutes of Physical Science; Chinese Academy of Sciences; Hefei Anhui Province China
- School of Life Science; University of Science and Technology of China; Hefei China
| | - L. Song
- Key Laboratory of Ion Beam Bioengineering; Institute of Technical Biology and Agriculture Engineering; Hefei Institutes of Physical Science; Chinese Academy of Sciences; Hefei Anhui Province China
| | - Q. Huang
- Key Laboratory of Ion Beam Bioengineering; Institute of Technical Biology and Agriculture Engineering; Hefei Institutes of Physical Science; Chinese Academy of Sciences; Hefei Anhui Province China
- School of Life Science; University of Science and Technology of China; Hefei China
- School of Nuclear Science and Technology; University of Science and Technology of China; Hefei China
| |
Collapse
|
14
|
Choi YY, Hong ME, Sim SJ. Enhanced astaxanthin extraction efficiency from Haematococcus pluvialis via the cyst germination in outdoor culture systems. Process Biochem 2015. [DOI: 10.1016/j.procbio.2015.09.008] [Citation(s) in RCA: 9] [Impact Index Per Article: 1.0] [Reference Citation Analysis] [Track Full Text] [Journal Information] [Submit a Manuscript] [Subscribe] [Scholar Register] [Indexed: 01/13/2023]
|
15
|
Ultrastructure and composition of the Nannochloropsis gaditana cell wall. EUKARYOTIC CELL 2014; 13:1450-64. [PMID: 25239976 DOI: 10.1128/ec.00183-14] [Citation(s) in RCA: 200] [Impact Index Per Article: 20.0] [Reference Citation Analysis] [Abstract] [Track Full Text] [Subscribe] [Scholar Register] [Indexed: 11/20/2022]
Abstract
Marine algae of the genus Nannochloropsis are promising producers of biofuel precursors and nutraceuticals and are also harvested commercially for aquaculture feed. We have used quick-freeze, deep-etch electron microscopy, Fourier transform infrared spectroscopy, and carbohydrate analyses to characterize the architecture of the Nannochloropsis gaditana (strain CCMP 526) cell wall, whose recalcitrance presents a significant barrier to biocommodity extraction. The data indicate a bilayer structure consisting of a cellulosic inner wall (~75% of the mass balance) protected by an outer hydrophobic algaenan layer. Cellulase treatment of walls purified after cell lysis generates highly enriched algaenan preparations without using the harsh chemical treatments typically used in algaenan isolation and characterization. Nannochloropsis algaenan was determined to comprise long, straight-chain, saturated aliphatics with ether cross-links, which closely resembles the cutan of vascular plants. Chemical identification of >85% of the isolated cell wall mass is detailed, and genome analysis is used to identify candidate biosynthetic enzymes.
Collapse
|
16
|
Rakleova G, Pouneva I, Dobrev N, Tchorbadjieva M. Differentially Secreted Proteins of Antarctic and Mesophilic Strains ofSynechocystis SalinaandChlorella Vulgarisafter UV-B and Temperature Stress Treatment. BIOTECHNOL BIOTEC EQ 2014. [DOI: 10.5504/bbeq.2013.0002] [Citation(s) in RCA: 3] [Impact Index Per Article: 0.3] [Reference Citation Analysis] [Track Full Text] [Journal Information] [Subscribe] [Scholar Register] [Indexed: 11/27/2022] Open
|
17
|
Komatsu S, Kobayashi Y, Nishizawa K, Nanjo Y, Furukawa K. Comparative proteomics analysis of differentially expressed proteins in soybean cell wall during flooding stress. Amino Acids 2010; 39:1435-49. [PMID: 20458513 DOI: 10.1007/s00726-010-0608-1] [Citation(s) in RCA: 90] [Impact Index Per Article: 6.4] [Reference Citation Analysis] [Abstract] [MESH Headings] [Track Full Text] [Journal Information] [Subscribe] [Scholar Register] [Received: 01/09/2010] [Accepted: 04/23/2010] [Indexed: 12/24/2022]
Abstract
Flooding is a major problem for soybean crop as it reduces the growth and grain yield. To investigate the function of the soybean cell wall in the response to flooding stress, cell wall proteins were analyzed. Cell wall proteins from roots and hypocotyls of soybeans, which were germinated for 2 days and subjected to 2 days of flooding, were purified, separated by two-dimensional polyacrylamide gel electrophoresis and stained with Coomassie brilliant blue. Sixteen out of 204 cell wall proteins showed responses to flooding stress. Of these, two lipoxygenases, four germin-like protein precursors, three stem 28/31 kDa glycoprotein precursors, and one superoxide dismutase [Cu-Zn] were downregulated. A copper amine oxidase was found to have shifted from the basic to acidic zone following flooding stress. Based on these results, it was confirmed by the lignin staining that the lignification was suppressed in the root of soybean under the flooding stress. These results suggest that the roots and hypocotyls of soybean caused the suppression of lignification through decrease of these proteins by downregulation of reactive oxygen species and jasmonate biosynthesis under flooding stress.
Collapse
Affiliation(s)
- Setsuko Komatsu
- National Institute of Crop Science, Kannondai 2-1-18, Tsukuba, 305-8518, Japan.
| | | | | | | | | |
Collapse
|
18
|
Barranca M, Fontana S, Taverna S, Duro G, Zanella-Cleon I, Becchi M, De Leo G, Alessandro R. Proteomic analysis of Parietaria judaica pollen and allergen profiling by an immunoproteomic approach. Biotechnol Lett 2009; 32:565-70. [PMID: 19953298 DOI: 10.1007/s10529-009-0180-5] [Citation(s) in RCA: 5] [Impact Index Per Article: 0.3] [Reference Citation Analysis] [Abstract] [MESH Headings] [Track Full Text] [Journal Information] [Subscribe] [Scholar Register] [Received: 11/12/2009] [Revised: 11/13/2009] [Accepted: 11/17/2009] [Indexed: 11/26/2022]
Abstract
Parietaria judaica pollen is a common cause of airway allergic disease in the Mediterranean area. Proteome analysis of mature Parietaria judaica pollen by two-dimensional gel electrophoresis (2-DE) and mass spectrometry has established the first reference proteome map of this weed. Proteins involved in a variety of cellular functions as well as the occurrence of allergens were detected. By using 2-DE and immunoblotting with sera from Parietaria judaica allergic patients we obtained a more detailed characterization of Parietaria judaica allergen profile so to improve our comprehension of the pathogenesis of pollen-induced allergic reaction.
Collapse
Affiliation(s)
- Marilisa Barranca
- Sezione di Biologia e Genetica, Dipartimento di Biopatologia e Metodologie Biomediche, Università di Palermo, Via Divisi 83, 90133 Palermo, Italy
| | | | | | | | | | | | | | | |
Collapse
|
19
|
Lacerda CMR, Reardon KF. Environmental proteomics: applications of proteome profiling in environmental microbiology and biotechnology. BRIEFINGS IN FUNCTIONAL GENOMICS AND PROTEOMICS 2009; 8:75-87. [PMID: 19279070 DOI: 10.1093/bfgp/elp005] [Citation(s) in RCA: 57] [Impact Index Per Article: 3.8] [Reference Citation Analysis] [Abstract] [Track Full Text] [Subscribe] [Scholar Register] [Indexed: 01/05/2023]
Abstract
In this review, we present the use of proteomics to advance knowledge in the field of environmental biotechnology, including studies of bacterial physiology, metabolism and ecology. Bacteria are widely applied in environmental biotechnology for their ability to catalyze dehalogenation, methanogenesis, denitrification and sulfate reduction, among others. Their tolerance to radiation and toxic compounds is also of importance. Proteomics has an important role in helping uncover the pathways behind these cellular processes. Environmental samples are often highly complex, which makes proteome studies in this field especially challenging. Some of these challenges are the lack of genome sequences for the vast majority of environmental bacteria, difficulties in isolating bacteria and proteins from certain environments, and the presence of complex microbial communities. Despite these challenges, proteomics offers a unique dynamic view into cellular function. We present examples of environmental proteomics of model organisms, and then discuss metaproteomics (microbial community proteomics), which has the potential to provide insights into the function of a community without isolating organisms. Finally, the environmental proteomics literature is summarized as it pertains to the specific application areas of wastewater treatment, metabolic engineering, microbial ecology and environmental stress responses.
Collapse
Affiliation(s)
- Carla M R Lacerda
- Department of Chemical and Biological Engineering, Colorado State University, Fort Collins, CO 80523-1370, USA
| | | |
Collapse
|
20
|
Li Y, Sommerfeld M, Chen F, Hu Q. Consumption of oxygen by astaxanthin biosynthesis: a protective mechanism against oxidative stress in Haematococcus pluvialis (Chlorophyceae). JOURNAL OF PLANT PHYSIOLOGY 2008; 165:1783-1797. [PMID: 18313796 DOI: 10.1016/j.jplph.2007.12.007] [Citation(s) in RCA: 91] [Impact Index Per Article: 5.7] [Reference Citation Analysis] [Abstract] [MESH Headings] [Track Full Text] [Subscribe] [Scholar Register] [Received: 09/19/2007] [Revised: 12/21/2007] [Accepted: 12/21/2007] [Indexed: 05/25/2023]
Abstract
Haematococcus pluvialis, a unicellular green microalga, experiences photooxidative stress when exposed to excess photon flux density (PFD) relative to the capacity of photosynthesis, and particularly under other adverse environmental conditions (e.g., nutrient depletion, salinity, and excess heavy metals). Under stress, Haematococcus cells synthesize and accumulate large amounts of the secondary carotenoid astaxanthin stored in cytosolic lipid bodies. In this study, the transcriptional expression of five astaxanthin biosynthesis genes and two plastid terminal oxidase (PTOX) genes either in high PFD or in the presence of excessive sodium acetate and/or iron was determined by real-time reverse transcription PCR, and astaxanthin accumulation was measured by HPLC. Photosynthetic oxygen evolution, lipid peroxidation, and cell mortality were also investigated under these stress conditions. Our results indicate that the astaxanthin biosynthesis pathway may consume as much as 9.94% of the molecular oxygen evolved from photosynthesis under stress via at least two distinct routes: (1) extensive oxygen-dependent processes leading to astaxanthin formation, and (2) conversion of molecular oxygen into water using electrons derived from carotenogenic desaturation steps to PTOX via the photosynthetic plastoquinone (PQ) pool. Reduction of reactive oxygen species (ROS) production by reducing subcellular molecular oxygen substrates through the astaxanthin biosynthesis pathway may represent a novel protective mechanism to cope with oxidative stress. Reoxidation of the PQ pool by PTOX may further reduce photosynthetic electron transport chain-induced ROS formation.
Collapse
Affiliation(s)
- Yantao Li
- Department of Applied Biological Sciences, Arizona State University, Polytechnic Campus, 7001 E. Williams Field Road, Mesa, AZ 85212, USA
| | | | | | | |
Collapse
|
21
|
Nagai K, Yotsukura N, Ikegami H, Kimura H, Morimoto K. Protein extraction for 2-DE from the lamina of Ecklonia kurome (laminariales): recalcitrant tissue containing high levels of viscous polysaccharides. Electrophoresis 2008; 29:672-81. [PMID: 18228537 DOI: 10.1002/elps.200700461] [Citation(s) in RCA: 28] [Impact Index Per Article: 1.8] [Reference Citation Analysis] [Abstract] [MESH Headings] [Track Full Text] [Journal Information] [Subscribe] [Scholar Register] [Indexed: 11/05/2022]
Abstract
Extraction of proteins from the tissues of laminarialean algae, i.e. kelp, is difficult due to high levels of nonprotein interfering compounds, mainly viscous polysaccharides. To establish proteomic analysis of kelp species, an ethanol/phenol extraction method was developed and compared to other popular methods. Proteins were extracted with phenol from crude protein powder, obtained by homogenizing the kelp tissues in ice-cold ethanol. The ethanol/phenol method produced high-quality proteins of the highest purity from the lamina of Ecklonia kurome, one of the Japanese dominant laminarialean algae. This method gave well-resolved 1-D SDS-PAGE or 2-DE images with low background and the highest number of bands or spots. In particular, proteins with neutral to basic pI's were efficiently extracted. Furthermore, 27 spots on the 2-DE gel were extensively identified by MALDI-TOF/TOF analysis. To the best of our knowledge, this is the first report of a protocol for protein extraction from kelp tissues that gives satisfactory 2-D protein profiles. It is expected that the protocol can be applied to other algae tissues or other recalcitrant plant tissues containing high levels of nonprotein interfering compounds.
Collapse
Affiliation(s)
- Kouhei Nagai
- Wakayama Prefecture Collaboration of Regional Entities for the Advancement of Technological Excellence, Japan Science and Technology Agency, Wakayama, Wakayama, Japan
| | | | | | | | | |
Collapse
|