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Aoki J, Ozaki T, Koshikawa R, Sasaki D, Kitajima K, Yoshida Y, Nakajima H, Asayama M. Effective cultivation conditions and safety evaluation of filamentous cyanobacteria producing phycocyanins with antiglycation activities. J Biotechnol 2024; 391:64-71. [PMID: 38844247 DOI: 10.1016/j.jbiotec.2024.06.003] [Citation(s) in RCA: 0] [Impact Index Per Article: 0] [Reference Citation Analysis] [Abstract] [Key Words] [MESH Headings] [Track Full Text] [Journal Information] [Subscribe] [Scholar Register] [Received: 03/13/2024] [Revised: 06/01/2024] [Accepted: 06/03/2024] [Indexed: 06/16/2024]
Abstract
We investigated suitable culture conditions for the production of the blue pigment phycocyanin (PC) from the unique filamentous cyanobacteria Pseudanabaena sp. ABRG5-3 and Limnothrix sp. SK1-2-1. White, green, or red LED irradiation at 30 μmol photons/m2/s was effective for phycocyanin production when compared with Arthrospira platensis (Spirulina) sp. NIES-39, which is generally grown under high light irradiation. To investigate the safety of the cyanobacteria, ABRG5-3 cells were subjected to Ames (reverse mutation) tests and single oral-dose rat studies, which revealed non-mutagenic and non-toxic properties. When three purified phycocyanins (abPC, skPC, and spPC) were subjected to agarose gel electrophoresis, they showed different mobility, indicating that each phycocyanin has unique properties. abPC exhibited strong antiglycation activities as novel function.
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Affiliation(s)
- Jinichi Aoki
- College of Agriculture, Ibaraki University, Ibaraki 300-0393, Japan; United Graduate School of Agricultural Science, Tokyo University of Agriculture and Technology, Tokyo 183-8509, Japan
| | - Takato Ozaki
- College of Agriculture, Ibaraki University, Ibaraki 300-0393, Japan
| | - Runa Koshikawa
- College of Agriculture, Ibaraki University, Ibaraki 300-0393, Japan
| | - Daisaku Sasaki
- BioX Chemical Industries Co. Ltd., Hiroshima 733-0844, Japan
| | - Katsuyoshi Kitajima
- United Graduate School of Agricultural Science, Tokyo University of Agriculture and Technology, Tokyo 183-8509, Japan
| | - Yuta Yoshida
- College of Agriculture, Ibaraki University, Ibaraki 300-0393, Japan
| | - Hiromi Nakajima
- College of Agriculture, Ibaraki University, Ibaraki 300-0393, Japan
| | - Munehiko Asayama
- College of Agriculture, Ibaraki University, Ibaraki 300-0393, Japan; United Graduate School of Agricultural Science, Tokyo University of Agriculture and Technology, Tokyo 183-8509, Japan.
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Han SF, Jin W, Qu F, Hanelt D, Abomohra A. Integrated municipal wastewater treatment and lipid accumulation by a self-flocculating/floating microalga Limnothrix sp. BIORESOURCE TECHNOLOGY 2024; 394:130165. [PMID: 38072079 DOI: 10.1016/j.biortech.2023.130165] [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: 11/13/2023] [Revised: 12/05/2023] [Accepted: 12/05/2023] [Indexed: 02/04/2024]
Abstract
The present study evaluated the growth, self-flocculation, lipid content, and pollutants removal by Limnothrix sp. BASMWW-9 isolated from municipal wastewater treatment system and cultivated in municipal wastewater. The biomass yield and lipid content after 6 days of cultivation were 1.07 g dw/L and 27.34 %dw, respectively. In addition, its self-flocculating ability reached up to 90 % after harvesting time of 180 min. Moreover, COD,NH3-N, TN, and TP removalefficiencies were 71.65 %, 81.89 %, 74.64 %, and 80.16 %, respectively. The self-flocculation performance of Limnothrix sp. was greatly associated to its morphology and production of extracellular polymeric substances (EPS), with significant positive impact of the high calcium and magnesium content in municipal wastewater. Interestingly, blue light irradiation during harvest enhanced the aggregation and floc formation as a floating biomat, which was attributed to enhanced polysaccharides production. This study provides innovative harvest method for Limnothrix sp. BASMWW-9 cultivated in wastewater using blue light for enhanced lipid recovery.
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Affiliation(s)
- Song-Fang Han
- School of Chemistry and Chemical Engineering, Zhoukou Normal University, Zhoukou 466001, China
| | - Wenbiao Jin
- Harbin Institute of Technology (Shenzhen), Shenzhen 518055, China
| | - Fanqi Qu
- Harbin Institute of Technology (Shenzhen), Shenzhen 518055, China
| | - Dieter Hanelt
- Aquatic Ecophysiology and Phycology, Institute of Plant Science and Microbiology, University of Hamburg, Hamburg 22609, Germany
| | - Abdelfatah Abomohra
- Aquatic Ecophysiology and Phycology, Institute of Plant Science and Microbiology, University of Hamburg, Hamburg 22609, Germany.
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Saito M, Watanabe H, Sasaki M, Ookubo M, Yarita T, Shiraiwa M, Asayama M. Coproduction of lipids and carotenoids by the novel green alga Coelastrella sp. depending on cultivation conditions. BIOTECHNOLOGY REPORTS (AMSTERDAM, NETHERLANDS) 2022; 37:e00769. [PMID: 36660172 PMCID: PMC9843265 DOI: 10.1016/j.btre.2022.e00769] [Citation(s) in RCA: 1] [Impact Index Per Article: 0.5] [Reference Citation Analysis] [Abstract] [Key Words] [Track Full Text] [Figures] [Subscribe] [Scholar Register] [Received: 05/10/2022] [Revised: 10/07/2022] [Accepted: 10/15/2022] [Indexed: 12/23/2022]
Abstract
A novel green alga Coelastrella sp. D3-1 was isolated, and its unique and significant lipid and carotenoid coproduction capability was characterised depending on cultivation conditions. The main component of produced lipids was triacylglycerol under nutrient depletion conditions, in which fatty-methyl-esters made up 20-44% of the dry cell weight (DCW) and consisted of abundant C16:0 and C18:1 fatty acids. The red (orange)-stage cells also produced a large portion of carotenoids (38.5% of the DCW) involving echinenone, canthaxanthin, and astaxanthin as major components accumulated over only 5-6 days under optimal conditions. Stress tests revealed resistance of the cells to pH 2-11, high temperatures (40-60 °C), ultraviolet irradiation, drought, and H2O2 treatment, thereby showing a robust nature. Both green- and red (orange)-stage cell extracts also showed antioxidant and anti-inflammatory abilities, implying that they have significant functions as useful biorefinery materials.
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Affiliation(s)
- Mizuki Saito
- College of Agriculture, Ibaraki University, 3-21-1 Ami, Ibaraki 300-0332, Japan
| | - Haruka Watanabe
- College of Agriculture, Ibaraki University, 3-21-1 Ami, Ibaraki 300-0332, Japan
| | - Mitsuki Sasaki
- College of Agriculture, Ibaraki University, 3-21-1 Ami, Ibaraki 300-0332, Japan
| | - Madoka Ookubo
- College of Agriculture, Ibaraki University, 3-21-1 Ami, Ibaraki 300-0332, Japan
| | - Takashi Yarita
- College of Agriculture, Ibaraki University, 3-21-1 Ami, Ibaraki 300-0332, Japan,United Graduate School of Agricultural Science, Tokyo University of Agriculture and Technology, 3-5-8 Fuchu, Tokyo 183-8509, Japan
| | - Masakazu Shiraiwa
- College of Agriculture, Ibaraki University, 3-21-1 Ami, Ibaraki 300-0332, Japan,United Graduate School of Agricultural Science, Tokyo University of Agriculture and Technology, 3-5-8 Fuchu, Tokyo 183-8509, Japan
| | - Munehiko Asayama
- College of Agriculture, Ibaraki University, 3-21-1 Ami, Ibaraki 300-0332, Japan,United Graduate School of Agricultural Science, Tokyo University of Agriculture and Technology, 3-5-8 Fuchu, Tokyo 183-8509, Japan,Corresponding author at: College of Agriculture, Ibaraki University, 3-21-1 Ami, Ibaraki 300-0332, Japan.
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Aoki J, Sasaki D, Asayama M. Development of a method for phycocyanin recovery from filamentous cyanobacteria and evaluation of its stability and antioxidant capacity. BMC Biotechnol 2021; 21:40. [PMID: 34134665 PMCID: PMC8210370 DOI: 10.1186/s12896-021-00692-9] [Citation(s) in RCA: 17] [Impact Index Per Article: 5.7] [Reference Citation Analysis] [Abstract] [Key Words] [MESH Headings] [Track Full Text] [Download PDF] [Figures] [Journal Information] [Subscribe] [Scholar Register] [Received: 12/29/2020] [Accepted: 04/12/2021] [Indexed: 11/17/2022] Open
Abstract
BACKGROUND Most commercial phycocyanins are extracted from a filamentous cyanobacterium, Arthrospira (Spirulina) platensis. Owing to the expenses of culture and complexities of the physical and chemical methods of phycocyanin purification, a more effective and simple method is required. RESULTS We developed a new method for efficiently recovering the blue pigment protein, phycocyanin, from unique filamentous cyanobacteria, Pseudanabaena sp. ABRG5-3 and Limnothrix sp. SK1-2-1. The cells were cultivated in economy medium BG11 and lysed by adding water in a 1:16 ratio of wet cells to water. After extraction and purification, 28-30% dry cell weight of phycocyanin was obtained and its purity was confirmed. The stabilities of the phycocyanins at different pH in the presence of high temperature and light conditions and their antioxidant abilities were assessed. Results indicated that the phycocyanins were stable and possessed antioxidant properties. Interestingly, the Pseudanabaena phycocyanin was less likely to deteriorate under acidic conditions. CONCLUSIONS Overall, we developed a promising and novel method for producing high functional phycocyanin concentrations at a low cost. The possibilities of adapting this new phycocyanin biorefinery to unique bioreactor utilization have also been discussed.
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Affiliation(s)
- Jinichi Aoki
- College of Agriculture, Ibaraki University, 3-21-1 Ami, Ibaraki 300-0393, Japan
- United Graduate School of Agricultural Science, Tokyo University of Agriculture and Technology, 3-5-8 Saiwai-cho Fuchu-shi, Tokyo 183-8509, Japan
| | - Daisaku Sasaki
- BioX Chemical Industries Co. Ltd., 2-20-11 Inokuchidai, Nishi-ku, Hiroshima 733-0844, Japan
| | - Munehiko Asayama
- College of Agriculture, Ibaraki University, 3-21-1 Ami, Ibaraki 300-0393, Japan.
- United Graduate School of Agricultural Science, Tokyo University of Agriculture and Technology, 3-5-8 Saiwai-cho Fuchu-shi, Tokyo 183-8509, Japan.
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Basri RS, Rahman RNZRA, Kamarudin NHA, Ali MSM. Cyanobacterial aldehyde deformylating oxygenase: Structure, function, and potential in biofuels production. Int J Biol Macromol 2020; 164:3155-3162. [PMID: 32841666 DOI: 10.1016/j.ijbiomac.2020.08.162] [Citation(s) in RCA: 6] [Impact Index Per Article: 1.5] [Reference Citation Analysis] [Abstract] [Key Words] [Track Full Text] [Journal Information] [Subscribe] [Scholar Register] [Received: 06/25/2020] [Revised: 08/04/2020] [Accepted: 08/20/2020] [Indexed: 11/27/2022]
Abstract
The conversion of aldehydes to valuable alkanes via cyanobacterial aldehyde deformylating oxygenase is of great interest. The availability of fossil reserves that keep on decreasing due to human exploitation is worrying, and even more troubling is the combustion emission from the fuel, which contributes to the environmental crisis and health issues. Hence, it is crucial to use a renewable and eco-friendly alternative that yields compound with the closest features as conventional petroleum-based fuel, and that can be used in biofuels production. Cyanobacterial aldehyde deformylating oxygenase (ADO) is a metal-dependent enzyme with an α-helical structure that contains di‑iron at the active site. The substrate enters the active site of every ADO through a hydrophobic channel. This enzyme exhibits catalytic activity toward converting Cn aldehyde to Cn-1 alkane and formate as a co-product. These cyanobacterial enzymes are small and easy to manipulate. Currently, ADOs are broadly studied and engineered for improving their enzymatic activity and substrate specificity for better alkane production. This review provides a summary of recent progress in the study of the structure and function of ADO, structural-based engineering of the enzyme, and highlight its potential in producing biofuels.
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Affiliation(s)
- Rose Syuhada Basri
- Enzyme and Microbial Technology Research Centre, Faculty of Biotechnology and Biomolecular Sciences, Universiti Putra Malaysia, 43400 Serdang, Selangor, Malaysia; Department of Biochemistry, Faculty of Biotechnology and Biomolecular Sciences, Universiti Putra Malaysia, 43400 Serdang, Selangor, Malaysia.
| | - Raja Noor Zaliha Raja Abd Rahman
- Enzyme and Microbial Technology Research Centre, Faculty of Biotechnology and Biomolecular Sciences, Universiti Putra Malaysia, 43400 Serdang, Selangor, Malaysia; Department of Microbiology, Faculty of Biotechnology and Biomolecular Sciences, Universiti Putra Malaysia, 43400 Serdang, Selangor, Malaysia.
| | - Nor Hafizah Ahmad Kamarudin
- Enzyme and Microbial Technology Research Centre, Faculty of Biotechnology and Biomolecular Sciences, Universiti Putra Malaysia, 43400 Serdang, Selangor, Malaysia; Centre of Foundation Studies for Agricultural Science, Universiti Putra Malaysia, 43400 Serdang, Selangor, Malaysia.
| | - Mohd Shukuri Mohamad Ali
- Enzyme and Microbial Technology Research Centre, Faculty of Biotechnology and Biomolecular Sciences, Universiti Putra Malaysia, 43400 Serdang, Selangor, Malaysia; Department of Biochemistry, Faculty of Biotechnology and Biomolecular Sciences, Universiti Putra Malaysia, 43400 Serdang, Selangor, Malaysia.
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Sasaki M, Takagi A, Ota S, Kawano S, Sasaki D, Asayama M. Coproduction of lipids and extracellular polysaccharides from the novel green alga Parachlorella sp. BX1.5 depending on cultivation conditions. ACTA ACUST UNITED AC 2019; 25:e00392. [PMID: 31871922 PMCID: PMC6909058 DOI: 10.1016/j.btre.2019.e00392] [Citation(s) in RCA: 12] [Impact Index Per Article: 2.4] [Reference Citation Analysis] [Abstract] [Key Words] [Track Full Text] [Download PDF] [Figures] [Journal Information] [Subscribe] [Scholar Register] [Received: 06/15/2019] [Revised: 10/03/2019] [Accepted: 10/29/2019] [Indexed: 12/22/2022]
Abstract
A novel strain of microalga Parachlorella sp. BX1.5 was isolated and its unique properties of producing lipids and extracellular polysaccharides (EPS) characterized. The cells could extracellularly produce a large amount of acidic EPS, when cultured in nitrogen-deficient BG110 medium (BG11–N) with 2 % CO2-air supply. The main component of intracellularly accumulated lipids was triacylglycerol (TAG), depending on the different cultivation conditions of BG11, BG11–N, BG11–P (phosphate depleted), and BG11–N–P (nitrogen and phosphate depleted). Fatty-methyl-esters (FAMEs), methyl-esterification of total lipids, consisted of abundant saturated C16 and unsaturated C18 fatty acids under the culture conditions. Cell spot assays on BG11 plates revealed the resistance of cells to pH 2–11, high temperatures of 50–70 °C, ultraviolet irradiation, and drought, under different culture conditions, thereby suggesting the biological significance of lipid and EPS accumulation. The prospects of BX1.5 as a dual producer has also been discussed for biorefineries.
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Affiliation(s)
- Mitsuki Sasaki
- College of Agriculture, Ibaraki University, 3-21-1 Ami, Ibaraki, 300-0393, Japan
| | - Akari Takagi
- College of Agriculture, Ibaraki University, 3-21-1 Ami, Ibaraki, 300-0393, Japan
| | - Shuhei Ota
- Department of Integrated Sciences, Graduate School of Frontier Sciences, University of Tokyo, 5-1-5 Kashiwanoha, Kashiwa, Chiba, 277-0882, Japan
- Center for Environmental Biology and Ecosystem Studies, National Institute for Environmental Studies, Tsukuba, Ibaraki, 305-8506, Japan
| | - Shigeyuki Kawano
- Department of Integrated Sciences, Graduate School of Frontier Sciences, University of Tokyo, 5-1-5 Kashiwanoha, Kashiwa, Chiba, 277-0882, Japan
- Future Center Initiative, The University of Tokyo, 178-4-4 Wakashiba, Kashiwa, Chiba, 277-0871, Japan
| | - Daisaku Sasaki
- BioX Chemical Industries Co. Ltd., 2-20-11 Inokuchidai, Nishi-ku, Hiroshima 733-0844, Japan
| | - Munehiko Asayama
- College of Agriculture, Ibaraki University, 3-21-1 Ami, Ibaraki, 300-0393, Japan
- United Graduate School of Agricultural Science, Tokyo University of Agriculture and Technology, 3-5-8 Fuchu, Tokyo, 183-8509, Japan
- Corresponding author at: College of Agriculture, Ibaraki University, 3-21-1 Ami, Ibaraki, 300-0393, Japan.
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Liu X, Meng Y, Zhang Z, Wang Y, Geng X, Li M, Li Z, Zhang D. Functional nano-catalyzed pyrolyzates from branch of Cinnamomum camphora. Saudi J Biol Sci 2019; 26:1227-1246. [PMID: 31516353 PMCID: PMC6733784 DOI: 10.1016/j.sjbs.2019.06.003] [Citation(s) in RCA: 9] [Impact Index Per Article: 1.8] [Reference Citation Analysis] [Abstract] [Key Words] [Track Full Text] [Download PDF] [Figures] [Journal Information] [Subscribe] [Scholar Register] [Received: 12/12/2018] [Revised: 05/30/2019] [Accepted: 06/02/2019] [Indexed: 12/19/2022] Open
Abstract
Cinnamomum camphora is an excellent tree species for construction of forest construction of Henan Province, China. The diverse bioactive components of nano-catalyzed pyrolyzates form cold-acclimated C. camphora branch (CCB) in North China were explored. The raw powder of CCB treated with nano-catalyst (Ag, NiO, 1/2Ag + 1/2NiO) were pyrolyzed at two temperatures (550 °C and 700 °C), respectively. The main pyrolyzates are bioactive components of bioenergy, biomedicines, food additive, spices, cosmetics and chemical, whose total relative contents at 550 °C pyrolyzates are higher than those at 700 °C pyrolyzates. There are abundant components of spices and biomedicine at 550 °C pyrolyzates, while more spices and food additive at 700 °C pyrolyzates. At 550 °C, the content of biomedicine components reaches the highest by 1/2Ag + 1/2NiO nanocatalysis, while the contents of spices and food additive components reach the highest by NiO nanocatalysis. At 700 °C, the content of bioenergy components reaches the highest by 1/2Ag + 1/2NiO nanocatalysis, and the content of cosmetics components reaches the highest by Ag nanocatalysis. The findings suggested that the branch of the cold-acclimated C. camphora have the potential to develop into valued-added products of bioenergy, biomedicine, cosmetics, spices and food additive by nanocatalysis.
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Affiliation(s)
- Xue Liu
- College of Forestry/Henan Province Engineering Research Center for Forest Biomass Value-added Products, Henan Agricultural University, Zhengzhou 450002, China
| | - Yu Meng
- College of Forestry/Henan Province Engineering Research Center for Forest Biomass Value-added Products, Henan Agricultural University, Zhengzhou 450002, China
| | - Zanpei Zhang
- College of Forestry/Henan Province Engineering Research Center for Forest Biomass Value-added Products, Henan Agricultural University, Zhengzhou 450002, China
| | - Yihan Wang
- College of Forestry/Henan Province Engineering Research Center for Forest Biomass Value-added Products, Henan Agricultural University, Zhengzhou 450002, China
| | - Xiaodong Geng
- College of Forestry/Henan Province Engineering Research Center for Forest Biomass Value-added Products, Henan Agricultural University, Zhengzhou 450002, China
| | - Mingwan Li
- College of Forestry/Henan Province Engineering Research Center for Forest Biomass Value-added Products, Henan Agricultural University, Zhengzhou 450002, China
| | - Zhi Li
- College of Forestry/Henan Province Engineering Research Center for Forest Biomass Value-added Products, Henan Agricultural University, Zhengzhou 450002, China
| | - Dangquan Zhang
- College of Forestry/Henan Province Engineering Research Center for Forest Biomass Value-added Products, Henan Agricultural University, Zhengzhou 450002, China
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Aoki J, Kawamata T, Kodaka A, Minakawa M, Imamura N, Tsuzuki M, Asayama M. Biofuel production utilizing a dual-phase cultivation system with filamentous cyanobacteria. J Biotechnol 2018; 280:55-61. [PMID: 29678391 DOI: 10.1016/j.jbiotec.2018.04.011] [Citation(s) in RCA: 7] [Impact Index Per Article: 1.2] [Reference Citation Analysis] [Abstract] [Key Words] [Track Full Text] [Journal Information] [Subscribe] [Scholar Register] [Received: 10/24/2017] [Revised: 03/29/2018] [Accepted: 04/16/2018] [Indexed: 01/11/2023]
Abstract
Biomass yields and biofuel production were examined in a dual (solid and liquid)-phase cultivation system (DuPHA) with the unique filamentous cyanobacteria, Pseudanabaena sp. ABRG 5-3 and Limnothrix sp. SK1-2-1. Continuous circular cultivation was driven under the indoor closed (IC) or indoor opened (IO) conditions and provided biomass yields of approximately 8-27 g dry cell weight (DCW) floor m-2 d-1. Alkanes of heptadecane (C17H36) or pentadecane (C15H32) as liquid biofuels were also recovered from the lower liquid-phase, in which cyanobacteria were dropped from the upper solid-phase and continuously cultivated with a small amount of medium. After the main cultivation in DuPHA, the upper solid-phase of a cotton cloth on which cyanobacteria grew was dried and directly subjected to a combustion test. This resulted in the thermal power (kJ s-1) of the cloth with microalgae increasing approximately 20-50% higher than that of the cloth only, suggesting a possibility of using the solid phase with microalgae as solid biofuel.
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Affiliation(s)
- Jinichi Aoki
- College of Agriculture, Ibaraki University, 3-21-1 Ami, Ibaraki, 300-0393, Japan; United Graduate School of Agricultural Science, Tokyo University of Agriculture and Technology, 3-5-8 Fuchu, Tokyo 183-8509, Japan
| | - Toru Kawamata
- College of Agriculture, Ibaraki University, 3-21-1 Ami, Ibaraki, 300-0393, Japan
| | - Asuka Kodaka
- College of Agriculture, Ibaraki University, 3-21-1 Ami, Ibaraki, 300-0393, Japan
| | - Masayuki Minakawa
- College of Agriculture, Ibaraki University, 3-21-1 Ami, Ibaraki, 300-0393, Japan
| | - Nobukazu Imamura
- School of Life Sciences, Tokyo University of Pharmacy and Life Sciences, 1432-1 Horinouchi, Hachioji, Tokyo, 192-0392, Japan
| | - Mikio Tsuzuki
- School of Life Sciences, Tokyo University of Pharmacy and Life Sciences, 1432-1 Horinouchi, Hachioji, Tokyo, 192-0392, Japan
| | - Munehiko Asayama
- College of Agriculture, Ibaraki University, 3-21-1 Ami, Ibaraki, 300-0393, Japan; Japan Science and Technology Agency (JST), Precursory Research for Embryonic Science and Technology (PRESTO), 4-1-8 Honcho Kawaguchi, Saitama, 332-0012, Japan; United Graduate School of Agricultural Science, Tokyo University of Agriculture and Technology, 3-5-8 Fuchu, Tokyo 183-8509, Japan.
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