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Qin Z, Chen S, Feng J, Chen H, Qi X, Wang H, Deng Y. Identification of aluminum-activated malate transporters (ALMT) family genes in hydrangea and functional characterization of HmALMT5/9/11 under aluminum stress. PeerJ 2022; 10:e13620. [PMID: 35769137 PMCID: PMC9235816 DOI: 10.7717/peerj.13620] [Citation(s) in RCA: 3] [Impact Index Per Article: 1.5] [Reference Citation Analysis] [Abstract] [Key Words] [Track Full Text] [Download PDF] [Figures] [Journal Information] [Subscribe] [Scholar Register] [Received: 02/22/2022] [Accepted: 06/02/2022] [Indexed: 01/17/2023] Open
Abstract
Hydrangea (Hydrangea macrophylla (Thunb.) Ser.) is a famous ornamental plant species with high resistance to aluminum (Al). The aluminum-activated malate transporter (ALMT) family encodes anion channels, which participate in many physiological processes, such as Al tolerance, pH regulation, stomatal movement, and mineral nutrition. However, systematic studies on the gene family have not been reported in hydrangea. In this study, 11 candidate ALMT family members were identified from the transcriptome data for hydrangea, which could be divided into three clusters according to the phylogenetic tree. The protein physicochemical properties, phylogeny, conserved motifs and protein structure were analyzed. The distribution of base conservative motifs of HmALMTs was consistent with that of other species, with a highly conserved WEP motif. Furthermore, tissue-specific analysis showed that most of the HmALMTs were highly expressed in the stem under Al treatment. In addition, overexpression of HmALMT5, HmALMT9 and HmALMT11 in yeasts enhanced their tolerance to Al stress. Therefore, the above results reveal the functional role of HmALMTs underlying the Al tolerance of hydrangea. The present study provides a reference for further research to elucidate the functional mechanism and expression regulation of the ALMT gene family in hydrangea.
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Affiliation(s)
- Ziyi Qin
- College of Horticulture, Nanjing Agricultural University, Nanjing, Jiangsu, China,Jiangsu Key Laboratory for Horticultural Crop Genetic Improvement, Institute of Leisure Agriculture, Jiangsu Academy of Agricultural Sciences, Nanjing, Jiangsu, China
| | - Shuangshuang Chen
- Jiangsu Key Laboratory for Horticultural Crop Genetic Improvement, Institute of Leisure Agriculture, Jiangsu Academy of Agricultural Sciences, Nanjing, Jiangsu, China
| | - Jing Feng
- Jiangsu Key Laboratory for Horticultural Crop Genetic Improvement, Institute of Leisure Agriculture, Jiangsu Academy of Agricultural Sciences, Nanjing, Jiangsu, China
| | - Huijie Chen
- Jiangsu Key Laboratory for Horticultural Crop Genetic Improvement, Institute of Leisure Agriculture, Jiangsu Academy of Agricultural Sciences, Nanjing, Jiangsu, China
| | - Xiangyu Qi
- Jiangsu Key Laboratory for Horticultural Crop Genetic Improvement, Institute of Leisure Agriculture, Jiangsu Academy of Agricultural Sciences, Nanjing, Jiangsu, China
| | - Huadi Wang
- Jiangsu Key Laboratory for Horticultural Crop Genetic Improvement, Institute of Leisure Agriculture, Jiangsu Academy of Agricultural Sciences, Nanjing, Jiangsu, China,School of Life Sciences, Jiangsu University, Zhenjiang, Jiangsu, China
| | - Yanming Deng
- College of Horticulture, Nanjing Agricultural University, Nanjing, Jiangsu, China,Jiangsu Key Laboratory for Horticultural Crop Genetic Improvement, Institute of Leisure Agriculture, Jiangsu Academy of Agricultural Sciences, Nanjing, Jiangsu, China,School of Life Sciences, Jiangsu University, Zhenjiang, Jiangsu, China
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Cox DE, Dyer S, Weir R, Cheseto X, Sturrock M, Coyne D, Torto B, Maule AG, Dalzell JJ. ABC transporter genes ABC-C6 and ABC-G33 alter plant-microbe-parasite interactions in the rhizosphere. Sci Rep 2019; 9:19899. [PMID: 31882903 PMCID: PMC6934816 DOI: 10.1038/s41598-019-56493-w] [Citation(s) in RCA: 17] [Impact Index Per Article: 3.4] [Reference Citation Analysis] [Abstract] [Track Full Text] [Download PDF] [Figures] [Journal Information] [Subscribe] [Scholar Register] [Received: 05/08/2019] [Accepted: 12/08/2019] [Indexed: 11/20/2022] Open
Abstract
Plants are master regulators of rhizosphere ecology, secreting a complex mixture of compounds into the soil, collectively termed plant root exudate. Root exudate composition is highly dynamic and functional, mediating economically important interactions between plants and a wide range of soil organisms. Currently we know very little about the molecular basis of root exudate composition, which is a key hurdle to functional exploitation of root exudates for crop improvement. Root expressed transporters modulate exudate composition and could be manipulated to develop beneficial plant root exudate traits. Using Virus Induced Gene silencing (VIGS), we demonstrate that knockdown of two root-expressed ABC transporter genes in tomato cv. Moneymaker, ABC-C6 and ABC-G33, alters the composition of semi-volatile compounds in collected root exudates. Root exudate chemotaxis assays demonstrate that knockdown of each transporter gene triggers the repulsion of economically relevant Meloidogyne and Globodera spp. plant parasitic nematodes, which are attracted to control treatment root exudates. Knockdown of ABC-C6 inhibits egg hatching of Meloidogyne and Globodera spp., relative to controls. Knockdown of ABC-G33 has no impact on egg hatching of Meloidogyne spp. but has a substantial inhibitory impact on egg hatching of G. pallida. ABC-C6 knockdown has no impact on the attraction of the plant pathogen Agrobacterium tumefaciens, or the plant growth promoting Bacillus subtilis, relative to controls. Silencing ABC-G33 induces a statistically significant reduction in attraction of B. subtilis, with no impact on attraction of A. tumefaciens. By inoculating selected differentially exuded compounds into control root exudates, we demonstrate that hexadecaonic acid and pentadecane are biologically relevant parasite repellents. ABC-C6 represents a promising target for breeding or biotechnology intervention strategies as gene knockdown leads to the repulsion of economically important plant parasites and retains attraction of the beneficial rhizobacterium B. subtilis. This study exposes the link between ABC transporters, root exudate composition, and ex planta interactions with agriculturally and economically relevant rhizosphere organisms, paving the way for new approaches to rhizosphere engineering and crop protection.
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Affiliation(s)
- Deborah Elizabeth Cox
- School of Biological Sciences, Institute for Global Food Security, Queen's University Belfast, Belfast, UK
| | - Steven Dyer
- School of Biological Sciences, Institute for Global Food Security, Queen's University Belfast, Belfast, UK
| | - Ryan Weir
- School of Biological Sciences, Institute for Global Food Security, Queen's University Belfast, Belfast, UK
| | - Xavier Cheseto
- The International Center of Insect Physiology and Ecology, Nairobi, Kenya
| | - Matthew Sturrock
- School of Biological Sciences, Institute for Global Food Security, Queen's University Belfast, Belfast, UK
| | - Danny Coyne
- The International Institute for Tropical Agriculture, Nairobi, Kenya
| | - Baldwyn Torto
- The International Center of Insect Physiology and Ecology, Nairobi, Kenya
| | - Aaron G Maule
- School of Biological Sciences, Institute for Global Food Security, Queen's University Belfast, Belfast, UK
| | - Johnathan J Dalzell
- School of Biological Sciences, Institute for Global Food Security, Queen's University Belfast, Belfast, UK.
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Kopittke PM, McKenna BA, Karunakaran C, Dynes JJ, Arthur Z, Gianoncelli A, Kourousias G, Menzies NW, Ryan PR, Wang P, Green K, Blamey FPC. Aluminum Complexation with Malate within the Root Apoplast Differs between Aluminum Resistant and Sensitive Wheat Lines. FRONTIERS IN PLANT SCIENCE 2017; 8:1377. [PMID: 28824696 PMCID: PMC5541250 DOI: 10.3389/fpls.2017.01377] [Citation(s) in RCA: 5] [Impact Index Per Article: 0.7] [Reference Citation Analysis] [Abstract] [Key Words] [Track Full Text] [Subscribe] [Scholar Register] [Received: 05/22/2017] [Accepted: 07/24/2017] [Indexed: 05/14/2023]
Abstract
In wheat (Triticum aestivum), it is commonly assumed that Al is detoxified by the release of organic anions into the rhizosphere, but it is also possible that detoxification occurs within the apoplast and symplast of the root itself. Using Al-resistant (ET8) and Al-sensitive (ES8) near-isogenic lines of wheat, we utilized traditional and synchrotron-based approaches to provide in situ analyses of the distribution and speciation of Al within root tissues. Some Al appeared to be complexed external to the root, in agreement with the common assumption. However, root apical tissues of ET8 accumulated four to six times more Al than ES8 when exposed to Al concentrations that reduce root elongation rate by 50% (3.5 μM Al for ES8 and 50 μM for ET8). Furthermore, in situ analyses of ET8 root tissues indicated the likely presence of Al-malate and other forms of Al, predominantly within the apoplast. To our knowledge, this is the first time that X-ray absorption near edge structure analyses have been used to examine the speciation of Al within plant tissues. The information obtained in the present study is important in developing an understanding of the underlying physiological mode of action for improved root growth in systems with elevated soluble Al.
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Affiliation(s)
- Peter M. Kopittke
- School of Agriculture and Food Sciences, The University of Queensland, BrisbaneQLD, Australia
| | - Brigid A. McKenna
- School of Agriculture and Food Sciences, The University of Queensland, BrisbaneQLD, Australia
| | | | | | | | | | | | - Neal W. Menzies
- School of Agriculture and Food Sciences, The University of Queensland, BrisbaneQLD, Australia
| | | | - Peng Wang
- College of Resources and Environmental Sciences, Nanjing Agricultural UniversityNanjing, China
- Centre for Soil and Environmental Research, School of Agriculture and Food Sciences, The University of Queensland, BrisbaneQLD, Australia
| | - Kathryn Green
- Centre for Microscopy and Microanalysis, The University of Queensland, BrisbaneQLD, Australia
| | - F. P. C. Blamey
- School of Agriculture and Food Sciences, The University of Queensland, BrisbaneQLD, Australia
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Bonato P, Batista MB, Camilios-Neto D, Pankievicz VCS, Tadra-Sfeir MZ, Monteiro RA, Pedrosa FO, Souza EM, Chubatsu LS, Wassem R, Rigo LU. RNA-seq analyses reveal insights into the function of respiratory nitrate reductase of the diazotroph Herbaspirillum seropedicae. Environ Microbiol 2016; 18:2677-88. [DOI: 10.1111/1462-2920.13422] [Citation(s) in RCA: 8] [Impact Index Per Article: 1.0] [Reference Citation Analysis] [Track Full Text] [Journal Information] [Subscribe] [Scholar Register] [Received: 11/12/2015] [Accepted: 06/07/2016] [Indexed: 01/21/2023]
Affiliation(s)
- Paloma Bonato
- Department of Biochemistry and Molecular Biology; Universidade Federal do Paraná; Curitiba PR Brazil
| | - Marcelo B. Batista
- Department of Biochemistry and Molecular Biology; Universidade Federal do Paraná; Curitiba PR Brazil
| | - Doumit Camilios-Neto
- Department of Biochemistry and Biotechnology; Universidade Estadual de Londrina; Londrina PR Brazil
| | - Vânia C. S. Pankievicz
- Department of Biochemistry and Molecular Biology; Universidade Federal do Paraná; Curitiba PR Brazil
| | - Michelle Z. Tadra-Sfeir
- Department of Biochemistry and Molecular Biology; Universidade Federal do Paraná; Curitiba PR Brazil
| | - Rose Adele Monteiro
- Department of Biochemistry and Molecular Biology; Universidade Federal do Paraná; Curitiba PR Brazil
| | - Fabio O. Pedrosa
- Department of Biochemistry and Molecular Biology; Universidade Federal do Paraná; Curitiba PR Brazil
| | - Emanuel M. Souza
- Department of Biochemistry and Molecular Biology; Universidade Federal do Paraná; Curitiba PR Brazil
| | - Leda S. Chubatsu
- Department of Biochemistry and Molecular Biology; Universidade Federal do Paraná; Curitiba PR Brazil
| | - Roseli Wassem
- Department of Genetics; Universidade Federal do Paraná; Curitiba PR Brazil
| | - Liu Un Rigo
- Department of Biochemistry and Molecular Biology; Universidade Federal do Paraná; Curitiba PR Brazil
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Igamberdiev AU, Eprintsev AT. Organic Acids: The Pools of Fixed Carbon Involved in Redox Regulation and Energy Balance in Higher Plants. FRONTIERS IN PLANT SCIENCE 2016; 7:1042. [PMID: 27471516 PMCID: PMC4945632 DOI: 10.3389/fpls.2016.01042] [Citation(s) in RCA: 185] [Impact Index Per Article: 23.1] [Reference Citation Analysis] [Abstract] [Key Words] [Track Full Text] [Subscribe] [Scholar Register] [Received: 04/20/2016] [Accepted: 07/04/2016] [Indexed: 05/18/2023]
Abstract
Organic acids are synthesized in plants as a result of the incomplete oxidation of photosynthetic products and represent the stored pools of fixed carbon accumulated due to different transient times of conversion of carbon compounds in metabolic pathways. When redox level in the cell increases, e.g., in conditions of active photosynthesis, the tricarboxylic acid (TCA) cycle in mitochondria is transformed to a partial cycle supplying citrate for the synthesis of 2-oxoglutarate and glutamate (citrate valve), while malate is accumulated and participates in the redox balance in different cell compartments (via malate valve). This results in malate and citrate frequently being the most accumulated acids in plants. However, the intensity of reactions linked to the conversion of these compounds can cause preferential accumulation of other organic acids, e.g., fumarate or isocitrate, in higher concentrations than malate and citrate. The secondary reactions, associated with the central metabolic pathways, in particularly with the TCA cycle, result in accumulation of other organic acids that are derived from the intermediates of the cycle. They form the additional pools of fixed carbon and stabilize the TCA cycle. Trans-aconitate is formed from citrate or cis-aconitate, accumulation of hydroxycitrate can be linked to metabolism of 2-oxoglutarate, while 4-hydroxy-2-oxoglutarate can be formed from pyruvate and glyoxylate. Glyoxylate, a product of either glycolate oxidase or isocitrate lyase, can be converted to oxalate. Malonate is accumulated at high concentrations in legume plants. Organic acids play a role in plants in providing redox equilibrium, supporting ionic gradients on membranes, and acidification of the extracellular medium.
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Affiliation(s)
- Abir U. Igamberdiev
- Department of Biology, Memorial University of Newfoundland, St. John’sNL, Canada
- *Correspondence: Abir U. Igamberdiev,
| | - Alexander T. Eprintsev
- Department of Biochemistry and Cell Physiology, Voronezh State UniversityVoronezh, Russia
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Yu W, Kan Q, Zhang J, Zeng B, Chen Q. Role of the plasma membrane H(+)-ATPase in the regulation of organic acid exudation under aluminum toxicity and phosphorus deficiency. PLANT SIGNALING & BEHAVIOR 2016; 11:e1106660. [PMID: 26713714 PMCID: PMC4871650 DOI: 10.1080/15592324.2015.1106660] [Citation(s) in RCA: 19] [Impact Index Per Article: 2.4] [Reference Citation Analysis] [Abstract] [Key Words] [MESH Headings] [Track Full Text] [Subscribe] [Scholar Register] [Received: 09/24/2015] [Revised: 10/01/2015] [Accepted: 10/05/2015] [Indexed: 05/19/2023]
Abstract
Aluminum (Al) toxicity and phosphorus (P) deficiency are 2 major limiting factors for plant growth and crop production in acidic soils. Organic acids exuded from roots have been generally regarded as a major resistance mechanism to Al toxicity and P deficiency. The exudation of organic acids is mediated by membrane-localized OA transporters, such as ALMT (Al-activated malate transporter) and MATE (multidrug and toxic compound extrusion). Beside on up-regulation expression of organic acids transporter gene, transcriptional, translational and post-translational regulation of the plasma membrane H(+)-ATPase are also involved in organic acid release process under Al toxicity and P deficiency. This mini-review summarizes the current knowledge about this field of study on the role of the plasma membrane H(+)-ATPase in organic acid exudation under Al toxicity and P deficiency conditions.
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Affiliation(s)
- Wenqian Yu
- Faculty of Life Science and Biotechnology; Kunming University of Science and Technology; Kunming, China
| | - Qi Kan
- Faculty of Life Science and Biotechnology; Kunming University of Science and Technology; Kunming, China
| | - Jiarong Zhang
- Faculty of Life Science and Biotechnology; Kunming University of Science and Technology; Kunming, China
| | - Bingjie Zeng
- Faculty of Life Science and Biotechnology; Kunming University of Science and Technology; Kunming, China
| | - Qi Chen
- Faculty of Life Science and Biotechnology; Kunming University of Science and Technology; Kunming, China
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Freitas DDS, Carlos EF, Gil MCSDS, Vieira LGE, Alcantara GB. NMR-Based Metabolomic Analysis of Huanglongbing-Asymptomatic and -Symptomatic Citrus Trees. JOURNAL OF AGRICULTURAL AND FOOD CHEMISTRY 2015; 63:7582-8. [PMID: 26285838 DOI: 10.1021/acs.jafc.5b03598] [Citation(s) in RCA: 33] [Impact Index Per Article: 3.7] [Reference Citation Analysis] [Abstract] [Key Words] [MESH Headings] [Track Full Text] [Subscribe] [Scholar Register] [Indexed: 05/23/2023]
Abstract
Huanglongbing (HLB) is one of the most severe diseases that affects citrus trees worldwide and is associated with the yet uncultured bacteria Candidatus Liberibacter spp. To assess the metabolomic differences between HLB-asymptomatic and -symptomatic tissues, extracts from leaf and root samples taken from a uniform 6-year-old commercial orchard of Valencia trees were subjected to nuclear magnetic resonance (NMR) and chemometrics. The results show that the symptomatic trees had higher sucrose content in their leaves and no variation in their roots. In addition, proline betaine and malate were detected in smaller amounts in the HLB-affected symptomatic leaves. The changes in metabolic processes of the plant in response to HLB are corroborated by the relationship between the bacterial levels and the metabolic profiles.
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Affiliation(s)
- Deisy dos Santos Freitas
- Universidade Federal de Mato Grosso do Sul (UFMS) , Instituto de Quı́mica, CP 549, CEP 79.074-460, Campo Grande, MS, Brazil
| | - Eduardo Fermino Carlos
- Instituto Agronômico do Paraná (IAPAR) , Laboratório de Biotecnologia Vegetal, CP 481, CEP 86.001-970, Londrina, PR, Brazil
| | | | - Luiz Gonzaga Esteves Vieira
- Universidade do Oeste Paulista (UNOESTE) , Rodovia Raposo Tavares, km 572, CEP 19.067-175, Presidente Prudente, SP, Brazil
| | - Glaucia Braz Alcantara
- Universidade Federal de Mato Grosso do Sul (UFMS) , Instituto de Quı́mica, CP 549, CEP 79.074-460, Campo Grande, MS, Brazil
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Chen Q, Guo CL, Wang P, Chen XQ, Wu KH, Li KZ, Yu YX, Chen LM. Up-regulation and interaction of the plasma membrane H(+)-ATPase and the 14-3-3 protein are involved in the regulation of citrate exudation from the broad bean (Vicia faba L.) under Al stress. PLANT PHYSIOLOGY AND BIOCHEMISTRY : PPB 2013; 70:504-11. [PMID: 23860230 DOI: 10.1016/j.plaphy.2013.06.015] [Citation(s) in RCA: 26] [Impact Index Per Article: 2.4] [Reference Citation Analysis] [Abstract] [Key Words] [MESH Headings] [Track Full Text] [Subscribe] [Scholar Register] [Received: 04/04/2013] [Accepted: 06/13/2013] [Indexed: 05/10/2023]
Abstract
Our previous study showed that citrate excretion coupled with a concomitant release of protons was involved in aluminum (Al) resistance in the broad bean. Furthermore, genes encoding plasma membrane (PM) H(+)-ATPase (vha2) and the 14-3-3 protein (vf14-3-3b) were up-regulated by Al in Al-resistant (YD) broad bean roots. In this study, the roles of PM H(+)-ATPase (E.C. 3.6.3.6) and the 14-3-3 protein in the regulation of citrate secretion were further investigated in Al-resistant (YD) and Al-sensitive (AD) broad bean cultivars under Al stress. The results showed that greater citrate exudation was positively correlated with higher activities of PM H(+)-ATPase in roots of YD than AD. Real-time RT-PCR analysis revealed that vha2 was clearly up-regulated by Al in YD but not in AD roots, whereas the transcription levels of vf14-3-3b were elevated in a time-dependent manner in both YD and AD roots. Immunoprecipitation and Western analysis suggested that phosphorylation and interaction with the vf14-3-3b protein of the VHA2 were enhanced in YD roots but not in AD roots with increasing Al treatment time. Fusicoccin or adenosine 5'-monophosphate increased or decreased the interaction between the phosphorylated VHA2 and the vf14-3-3b protein, followed by an enhancement or reduction of the PM H(+)-ATPase activity and citrate exudation in both cultivars under Al stress conditions, respectively. Taken together, these results suggested that Al enhanced the expression and interaction of the PM H(+)-ATPase and the 14-3-3 protein, which thereby led to higher activity of the PM H(+)-ATPase and more citrate exudation from YD plants.
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Affiliation(s)
- Qi Chen
- Biotechnology Research Centre, Faculty of Life Science and Biotechnology, Chenggong Campus, Kunming University of Science and Technology, Kunming 650500, China
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Qian H, Wang R, Hu H, Lu T, Chen X, Ye H, Liu W, Fu Z. Enantioselective phytotoxicity of the herbicide imazethapyr and its effect on rice physiology and gene transcription. ENVIRONMENTAL SCIENCE & TECHNOLOGY 2011; 45:7036-43. [PMID: 21749058 DOI: 10.1021/es200703v] [Citation(s) in RCA: 9] [Impact Index Per Article: 0.7] [Reference Citation Analysis] [Abstract] [MESH Headings] [Track Full Text] [Subscribe] [Scholar Register] [Indexed: 05/08/2023]
Abstract
Imazethapyr (IM) is a chiral herbicide and a widely used racemic mixture. This report investigated the enantioselectivity between R- and S-IM in rice and explored its causative mechanism at the physiological and molecular levels. The results suggested that R-IM inhibited acetolactate synthase (ALS) activity to a greater extent than S-IM, which reduced the synthesis of branched-chain amino acids (BCAAs). Additionally, most other amino acids showed enantioselectivity. On the cellular level, R-IM showed stronger toxicity against protoplasts than S-IM. A gene transcription profile analysis showed that gene transcripts in many metabolic pathways, including amino acid metabolism, photosynthesis, starch and sugar metabolism, and the tricarboxylic acid cycle displayed enantioselectivity between the IM enantiomers. R-IM regulated more genes more strongly than S-IM. This study suggested that R-IM has stronger toxicity against plants than S-IM; this toxicity is caused not only by changing targeted enzyme activity and amino acid synthesis, but also by affecting gene transcription in other metabolic pathways directly or indirectly in an enantioselective manner.
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Affiliation(s)
- Haifeng Qian
- College of Biological and Environmental Engineering, Zhejiang University of Technology, Hangzhou 310032, People's Republic of China
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