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Yang Y, Sun F, Wang P, Yusuyin M, Kuerban W, Lai C, Li C, Ma J, Xiao F. Genome-Wide Identification and Preliminary Functional Analysis of BAM (β-Amylase) Gene Family in Upland Cotton. Genes (Basel) 2023; 14:2077. [PMID: 38003020 PMCID: PMC10671626 DOI: 10.3390/genes14112077] [Citation(s) in RCA: 1] [Impact Index Per Article: 1.0] [Reference Citation Analysis] [Abstract] [Key Words] [MESH Headings] [Track Full Text] [Journal Information] [Subscribe] [Scholar Register] [Received: 10/09/2023] [Revised: 11/09/2023] [Accepted: 11/12/2023] [Indexed: 11/26/2023] Open
Abstract
The β-amylase (BAM) gene family encodes important enzymes that catalyze the conversion of starch to maltose in various biological processes of plants and play essential roles in regulating the growth and development of multiple plants. So far, BAMs have been extensively studied in Arabidopsis thaliana (A. thaliana). However, the characteristics of the BAM gene family in the crucial economic crop, cotton, have not been reported. In this study, 27 GhBAM genes in the genome of Gossypium hirsutum L (G. hirsutum) were identified by genome-wide identification, and they were divided into three groups according to sequence similarity and phylogenetic relationship. The gene structure, chromosome distribution, and collinearity of all GhBAM genes identified in the genome of G. hirsutum were analyzed. Further sequence alignment of the core domain of glucosyl hydrolase showed that all GhBAM family genes had the glycosyl hydrolase family 14 domain. We identified the BAM gene GhBAM7 and preliminarily investigated its function by transcriptional sequencing analysis, qRT-PCR, and subcellular localization. These results suggested that the GhBAM7 gene may influence fiber strength during fiber development. This systematic analysis provides new insight into the transcriptional characteristics of BAM genes in G. hirsutum. It may lay the foundation for further study of the function of these genes.
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Affiliation(s)
- Yanlong Yang
- Research Institute of Economic Crops, Xinjiang Academy of Agricultural Sciences, Urumqi 830091, China; (Y.Y.); (M.Y.); (C.L.); (C.L.)
- Xinjiang Academy of Agricultural Sciences Kuqa County Upland Cotton Test Station, Xinjiang Academy of Agricultural Sciences, Kuqa 842000, China; (P.W.); (W.K.)
| | - Fenglei Sun
- State Key Laboratory of Cotton Biology, Institute of Cotton Research of the Chinese Academy of Agricultural Sciences, Anyang 455000, China;
| | - Penglong Wang
- Xinjiang Academy of Agricultural Sciences Kuqa County Upland Cotton Test Station, Xinjiang Academy of Agricultural Sciences, Kuqa 842000, China; (P.W.); (W.K.)
| | - Mayila Yusuyin
- Research Institute of Economic Crops, Xinjiang Academy of Agricultural Sciences, Urumqi 830091, China; (Y.Y.); (M.Y.); (C.L.); (C.L.)
| | - Wumaierjiang Kuerban
- Xinjiang Academy of Agricultural Sciences Kuqa County Upland Cotton Test Station, Xinjiang Academy of Agricultural Sciences, Kuqa 842000, China; (P.W.); (W.K.)
| | - Chengxia Lai
- Research Institute of Economic Crops, Xinjiang Academy of Agricultural Sciences, Urumqi 830091, China; (Y.Y.); (M.Y.); (C.L.); (C.L.)
| | - Chunping Li
- Research Institute of Economic Crops, Xinjiang Academy of Agricultural Sciences, Urumqi 830091, China; (Y.Y.); (M.Y.); (C.L.); (C.L.)
| | - Jun Ma
- Research Institute of Economic Crops, Xinjiang Academy of Agricultural Sciences, Urumqi 830091, China; (Y.Y.); (M.Y.); (C.L.); (C.L.)
| | - Fei Xiao
- Xinjiang Key Laboratory of Biological Resources and Genetic Engineering, College of Life Science and Technology, Xinjiang University, Urumqi 830046, China
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Zhang Y, Zhang L, Xiao Q, Wu C, Zhang J, Xu Q, Yu Z, Bao S, Wang J, Li Y, Wang L, Wang J. Two independent allohexaploidizations and genomic fractionation in Solanales. FRONTIERS IN PLANT SCIENCE 2022; 13:1001402. [PMID: 36212355 PMCID: PMC9538396 DOI: 10.3389/fpls.2022.1001402] [Citation(s) in RCA: 0] [Impact Index Per Article: 0] [Reference Citation Analysis] [Abstract] [Key Words] [Grants] [Track Full Text] [Figures] [Subscribe] [Scholar Register] [Received: 07/23/2022] [Accepted: 08/29/2022] [Indexed: 06/16/2023]
Abstract
Solanales, an order of flowering plants, contains the most economically important vegetables among all plant orders. To date, many Solanales genomes have been sequenced. However, the evolutionary processes of polyploidization events in Solanales and the impact of polyploidy on species diversity remain poorly understood. We compared two representative Solanales genomes (Solanum lycopersicum L. and Ipomoea triloba L.) and the Vitis vinifera L. genome and confirmed two independent polyploidization events. Solanaceae common hexaploidization (SCH) and Convolvulaceae common hexaploidization (CCH) occurred ∼43-49 and ∼40-46 million years ago (Mya), respectively. Moreover, we identified homologous genes related to polyploidization and speciation and constructed multiple genomic alignments with V. vinifera genome, providing a genomic homology framework for future Solanales research. Notably, the three polyploidization-produced subgenomes in both S. lycopersicum and I. triloba showed significant genomic fractionation bias, suggesting the allohexaploid nature of the SCH and CCH events. However, we found that the higher genomic fractionation bias of polyploidization-produced subgenomes in Solanaceae was likely responsible for their more abundant species diversity than that in Convolvulaceae. Furthermore, through genomic fractionation and chromosomal structural variation comparisons, we revealed the allohexaploid natures of SCH and CCH, both of which were formed by two-step duplications. In addition, we found that the second step of two paleohexaploidization events promoted the expansion and diversity of β-amylase (BMY) genes in Solanales. These current efforts provide a solid foundation for future genomic and functional exploration of Solanales.
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Affiliation(s)
- Yan Zhang
- Center for Genomics and Computational Biology, School of Life Sciences, North China University of Science and Technology, Tangshan, Hebei, China
| | - Lan Zhang
- Center for Genomics and Computational Biology, School of Life Sciences, North China University of Science and Technology, Tangshan, Hebei, China
| | - Qimeng Xiao
- Center for Genomics and Computational Biology, School of Life Sciences, North China University of Science and Technology, Tangshan, Hebei, China
| | - Chunyang Wu
- Center for Genomics and Computational Biology, School of Life Sciences, North China University of Science and Technology, Tangshan, Hebei, China
| | - Jiaqi Zhang
- Center for Genomics and Computational Biology, School of Life Sciences, North China University of Science and Technology, Tangshan, Hebei, China
| | - Qiang Xu
- Center for Genomics and Computational Biology, School of Life Sciences, North China University of Science and Technology, Tangshan, Hebei, China
| | - Zijian Yu
- Center for Genomics and Computational Biology, School of Life Sciences, North China University of Science and Technology, Tangshan, Hebei, China
| | - Shoutong Bao
- Center for Genomics and Computational Biology, School of Life Sciences, North China University of Science and Technology, Tangshan, Hebei, China
| | - Jianyu Wang
- Center for Genomics and Computational Biology, School of Life Sciences, North China University of Science and Technology, Tangshan, Hebei, China
| | - Yu Li
- Center for Genomics and Computational Biology, School of Life Sciences, North China University of Science and Technology, Tangshan, Hebei, China
| | - Li Wang
- Center for Genomics and Computational Biology, School of Life Sciences, North China University of Science and Technology, Tangshan, Hebei, China
| | - Jinpeng Wang
- Center for Genomics and Computational Biology, School of Life Sciences, North China University of Science and Technology, Tangshan, Hebei, China
- University of Chinese Academy of Sciences, Beijing, China
- State Key Laboratory of Systematic and Evolutionary Botany, Institute of Botany, Chinese Academy of Sciences, Beijing, China
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Zarinkamar F, Moradi A, MohamadBagheri N, Rezayian M. Isoleucine treatment of seeds increased the content of 4-hydroxyisoleucine and affected the anatomy properties of Trigonella persica Boiss. At different developmental stages. Biologia (Bratisl) 2022. [DOI: 10.1007/s11756-022-01156-x] [Citation(s) in RCA: 0] [Impact Index Per Article: 0] [Reference Citation Analysis] [Track Full Text] [Journal Information] [Subscribe] [Scholar Register] [Indexed: 11/02/2022]
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4
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Biochemical Insights into the functionality of a novel thermostable β-amylase from Dioclea reflexa. BIOCATALYSIS AND AGRICULTURAL BIOTECHNOLOGY 2022. [DOI: 10.1016/j.bcab.2022.102361] [Citation(s) in RCA: 0] [Impact Index Per Article: 0] [Reference Citation Analysis] [Track Full Text] [Journal Information] [Subscribe] [Scholar Register] [Indexed: 11/23/2022]
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5
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Zhang DL, Wang Y, Jia BC, Tian XQ, Chu J, Yin HB, Jameson PE, Chen SH, Guo SL. Genome-Wide Identification and Expression Analysis of the β-Amylase Gene Family in Chenopodium quinoa. DNA Cell Biol 2021; 40:936-948. [PMID: 34042512 DOI: 10.1089/dna.2020.5911] [Citation(s) in RCA: 0] [Impact Index Per Article: 0] [Reference Citation Analysis] [Abstract] [Key Words] [Journal Information] [Subscribe] [Scholar Register] [Indexed: 10/21/2022] Open
Abstract
β-Amylase (BAM) is an important starch hydrolase, playing a role in a variety of plant growth and development processes. In this study, 22 BAM gene family members (GFMs) were identified in quinoa (Chenopodium quinoa), an ancient crop gaining modern consumer acceptance because of its nutritional qualities. The genetic structure, phylogenetic and evolutionary relationships, and expression patterns of CqBAM GFMs in different tissues, were analyzed. Phylogenetic analyses assigned the CqBAMs, AtBAMs, and OsBAMs into four clades. The CqBAM gene family had expanded due to segmental duplication. RNA-seq analysis revealed expression of the duplicated pairs to be similar, with the expression of CqBAM GFM pairs showing a degree of tissue specificity that was confirmed by reverse transcription quantitative PCR (RT-qPCR). Several CqBAM GFMs were also responsive to abiotic stresses in shoots and/or roots. In conclusion, the BAM gene family in quinoa was identified and systematically analyzed using bioinformatics and experimental methods. These results will help to elucidate the evolutionary relationship and biological functions of the BAM gene family in quinoa.
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Affiliation(s)
| | - Yu Wang
- College of Life Sciences, Yantai University, Yantai, China
| | - Bing-Chen Jia
- College of Life Sciences, Yantai University, Yantai, China
| | - Xiao-Qin Tian
- College of Life Sciences, Yantai University, Yantai, China
| | - Jing Chu
- College of Life Sciences, Yantai University, Yantai, China
| | - Hai-Bo Yin
- College of Life Sciences, Yantai University, Yantai, China
| | - Paula E Jameson
- College of Life Sciences, Yantai University, Yantai, China.,School of Biological Sciences, University of Canterbury, Christchurch, New Zealand
| | - Shi-Hua Chen
- College of Life Sciences, Yantai University, Yantai, China
| | - Shan-Li Guo
- College of Life Sciences, Yantai University, Yantai, China
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Bakhshy E, Zarinkamar F, Nazari M. Structural and quantitative changes of starch in seed of Trigonella persica during germination. Int J Biol Macromol 2020; 164:1284-1293. [PMID: 32755696 DOI: 10.1016/j.ijbiomac.2020.07.262] [Citation(s) in RCA: 1] [Impact Index Per Article: 0.3] [Reference Citation Analysis] [Abstract] [Key Words] [Track Full Text] [Journal Information] [Subscribe] [Scholar Register] [Received: 03/16/2020] [Revised: 07/17/2020] [Accepted: 07/20/2020] [Indexed: 10/23/2022]
Abstract
Starch, the most abundant carbohydrate reserve in plant seeds, is synthesized and stored in the cotyledons of some plants. In seeds of Trigonella persica (Fabaceae), starch appears during germination and forms granules that are composed of amylose and/or amylopectin. In this study, both quantitative and qualitative traits of starch were evaluated during the germination of T. persica seed. The quantitative assay and microscopic imaging showed that there was a low-amylose starch in the cotyledons and its amount reached the highest at 48 h after imbibition (HAI). According to the SEM images of hydrogels, FT-IR spectra, and analysis of extracted starches, the purity of this starch was decreased during germination. So that the extracted starch from cotyledons of non-germinated seeds (ESCN), with the highest purity and the lowest protein content, was different from all the extracted starches. Therefore, it seems that ESCN was an amylopectin rich type starch, which had low amylose to amylopectin ratio and as waxy starch typically, it can have a cohesive and gummy texture compared with ordinary starch.
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Affiliation(s)
- Ehsan Bakhshy
- Department of Plant Biology, Faculty of Biological Sciences, Tarbiat Modares University, Tehran, Iran
| | - Fatemeh Zarinkamar
- Department of Plant Biology, Faculty of Biological Sciences, Tarbiat Modares University, Tehran, Iran.
| | - Mehrdad Nazari
- Department of Plant Biology, Faculty of Biological Sciences, Tarbiat Modares University, Tehran, Iran
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Sinha A, Haider T, Narula K, Ghosh S, Chakraborty N, Chakraborty S. Integrated Seed Proteome and Phosphoproteome Analyses Reveal Interplay of Nutrient Dynamics, Carbon–Nitrogen Partitioning, and Oxidative Signaling in Chickpea. Proteomics 2020; 20:e1900267. [DOI: 10.1002/pmic.201900267] [Citation(s) in RCA: 4] [Impact Index Per Article: 1.0] [Reference Citation Analysis] [Track Full Text] [Journal Information] [Subscribe] [Scholar Register] [Received: 08/27/2019] [Revised: 02/03/2020] [Indexed: 12/16/2022]
Affiliation(s)
- Arunima Sinha
- National Institute of Plant Genome Research Aruna Asaf Ali Marg New Delhi 110067 India
| | - Toshiba Haider
- National Institute of Plant Genome Research Aruna Asaf Ali Marg New Delhi 110067 India
| | - Kanika Narula
- National Institute of Plant Genome Research Aruna Asaf Ali Marg New Delhi 110067 India
| | - Sudip Ghosh
- National Institute of Plant Genome Research Aruna Asaf Ali Marg New Delhi 110067 India
| | - Niranjan Chakraborty
- National Institute of Plant Genome Research Aruna Asaf Ali Marg New Delhi 110067 India
| | - Subhra Chakraborty
- National Institute of Plant Genome Research Aruna Asaf Ali Marg New Delhi 110067 India
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Agrawal DC, Yadav A, Khan MA, Kundu S, Kayastha AM. Denaturant Induced Equilibrium Unfolding and Conformational Transitional Studies of Germinated Fenugreek β-Amylase Revealed Molten Globule like State at Low pH. Protein Pept Lett 2020; 27:1046-1057. [PMID: 32242773 DOI: 10.2174/0929866527666200403082721] [Citation(s) in RCA: 0] [Impact Index Per Article: 0] [Reference Citation Analysis] [Abstract] [Key Words] [Track Full Text] [Journal Information] [Subscribe] [Scholar Register] [Received: 01/23/2020] [Revised: 02/22/2020] [Accepted: 02/24/2020] [Indexed: 11/22/2022]
Abstract
BACKGROUND β-Amylase (EC 3.2.1.2) is a maltogenic enzyme, which releases β-maltose from the non-reducing end of the substrates. The enzyme plays important roles for the production of vaccine, maltiol and maltose rich syrups. Apart from these applications the enzyme protects cells from abiotic as well as oxidative damage. The enzyme is βwell characterized in βplants and microbes and crystal structures of β-amylases βhave been βobtained from sweet potato, soybean and Bacillus cereus. OBJECTIVE Find out correlation between structural and functional stability induced by change in pH, temperature and chaotropes. METHODS Activity, intrinsic fluorescence, extrinsic fluorescence, near- and far- ultraviolet circular dichroism spectroscopic measurements were performed. RESULTS Peaks about 208 nm and 222 nm obtained by near-ultraviolet circular dichroism correspond to α-helix whereas peak at 215 nm shows presence of β-sheet. At pH 2.0, absence of tertiary structures, exposed of hydrophobic regions and presence of substantial secondary structures, revealed the existence of molten globule like state. Temperature induced denaturation studies showed that the enzyme was stable up to 75 ºC and the process was found to be irreversible in nature. Chaotropes dependent equilibrium unfolding studies revealed that at low concentration of chaotropes, ellipticity and intrinsic fluorescence βintensity were βdecreased βwhereas βenzymatic activity remained unchanged, which revealed fenugreek β-amylase is multi-domains enzyme and catalytic βdomain βis more βstable compare to non-catalytic domain. Moreover, the transition was sigmoidal and non-coincidental. CONCLUSION Results indicate the probable existence of intermediate states that might perform significant role in physiological process and biotechnological applications.
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Affiliation(s)
- Dinesh Chand Agrawal
- School of Biotechnology, Institute of Science, Banaras Hindu University, Varanasi 221005, India
| | - Anjali Yadav
- School of Biotechnology, Institute of Science, Banaras Hindu University, Varanasi 221005, India
| | - Mohd Asim Khan
- Department of Biochemistry, University of Delhi South Campus, New Delhi 110021, India
| | - Suman Kundu
- Department of Biochemistry, University of Delhi South Campus, New Delhi 110021, India
| | - Arvind M Kayastha
- School of Biotechnology, Institute of Science, Banaras Hindu University, Varanasi 221005, India
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9
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Immobilization of fenugreek β-amylase onto functionalized graphene quantum dots (GQDs) using Box-Behnken design: Its biochemical, thermodynamic and kinetic studies. Int J Biol Macromol 2020; 144:170-182. [DOI: 10.1016/j.ijbiomac.2019.12.033] [Citation(s) in RCA: 24] [Impact Index Per Article: 6.0] [Reference Citation Analysis] [Track Full Text] [Journal Information] [Subscribe] [Scholar Register] [Received: 06/27/2019] [Revised: 11/14/2019] [Accepted: 12/04/2019] [Indexed: 11/18/2022]
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10
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Agrawal DC, Yadav A, Singh VK, Srivastava A, Kayastha AM. Immobilization of fenugreek β-amylase onto functionalized tungsten disulfide nanoparticles using response surface methodology: Its characterization and interaction with maltose and sucrose. Colloids Surf B Biointerfaces 2020; 185:110600. [PMID: 31704608 DOI: 10.1016/j.colsurfb.2019.110600] [Citation(s) in RCA: 2] [Impact Index Per Article: 0.5] [Reference Citation Analysis] [Abstract] [Key Words] [Track Full Text] [Journal Information] [Subscribe] [Scholar Register] [Received: 07/10/2019] [Revised: 09/20/2019] [Accepted: 10/17/2019] [Indexed: 10/25/2022]
Abstract
In this communication, fenugreek β-amylase was immobilized onto functionalized tungsten disulfide nanoparticles through cross-linker glutaraldehyde and successful immobilization was confirmed by SEM, AFM and FTIR spectroscopy. To make the process economical and efficient, optimization of independent variables was carried out using Box-Behnken design of response surface methodology. Approximately similar predicted (85.6%) and experimental (84.2%) immobilization efficiency revealed that the model is suitable for design of space. Optimum temperature was calculated to be 60 °C. After immobilization, an increased Km (2.12 times) and a decreased Vmax (0.58 times), indicated inaccessibility of active site residues to the substrate. The immobilized enzyme retained 77% relative activity after 10 uses whereas 40% residual activity was obtained after 120 days. An increased half-life with concomitantly decreased kinetic rate constant revealed that the immobilized enzyme is more stable at a higher temperature and the process followed first-order kinetics (R2 > 0.93). The limit of detection for maltose and sucrose fluorescence biosensor was found to be 0.052 and 0.096 mM, respectively. Thermodynamic parameters such as changes in Gibbs free energy (ΔG < 0), enthalpy (ΔH > 0) and entropy (ΔS >0) revealed that the process is spontaneous and endothermic, driven by hydrophobic interactions. Thermo-stability data at higher temperature for the immobilized enzyme makes it a suitable candidate for industrial applications in the production of maltose in food and pharmaceutical industries. Furthermore, fluorescence biosensor could be used to detect and quantify maltose and sucrose to maintain the quality of industrial products.
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Affiliation(s)
- Dinesh Chand Agrawal
- School of Biotechnology, Institute of Science, Banaras Hindu University, Varanasi 221005, India
| | - Anjali Yadav
- School of Biotechnology, Institute of Science, Banaras Hindu University, Varanasi 221005, India
| | - Vijay K Singh
- Department of Physics, Institute of Science, Banaras Hindu University, Varanasi 221005, India
| | - Anchal Srivastava
- Department of Physics, Institute of Science, Banaras Hindu University, Varanasi 221005, India
| | - Arvind M Kayastha
- School of Biotechnology, Institute of Science, Banaras Hindu University, Varanasi 221005, India.
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Agrawal DC, Dwevedi A, Kayastha AM. Biochemical and thermodynamic characterization of de novo synthesized β-amylase from fenugreek. Int J Biol Macromol 2019; 130:786-797. [DOI: 10.1016/j.ijbiomac.2019.02.162] [Citation(s) in RCA: 6] [Impact Index Per Article: 1.2] [Reference Citation Analysis] [Track Full Text] [Journal Information] [Subscribe] [Scholar Register] [Received: 12/06/2018] [Revised: 02/02/2019] [Accepted: 02/28/2019] [Indexed: 11/16/2022]
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12
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Li M, Yang S, Xu W, Pu Z, Feng J, Wang Z, Zhang C, Peng M, Du C, Lin F, Wei C, Qiao S, Zou H, Zhang L, Li Y, Yang H, Liao A, Song W, Zhang Z, Li J, Wang K, Zhang Y, Lin H, Zhang J, Tan W. The wild sweetpotato (Ipomoea trifida) genome provides insights into storage root development. BMC PLANT BIOLOGY 2019; 19:119. [PMID: 30935381 PMCID: PMC6444543 DOI: 10.1186/s12870-019-1708-z] [Citation(s) in RCA: 20] [Impact Index Per Article: 4.0] [Reference Citation Analysis] [Abstract] [Key Words] [MESH Headings] [Grants] [Track Full Text] [Subscribe] [Scholar Register] [Received: 12/02/2018] [Accepted: 03/11/2019] [Indexed: 05/19/2023]
Abstract
BACKGROUND Sweetpotato (Ipomoea batatas (L.) Lam.) is the seventh most important crop in the world and is mainly cultivated for its underground storage root (SR). The genetic studies of this species have been hindered by a lack of high-quality reference sequence due to its complex genome structure. Diploid Ipomoea trifida is the closest relative and putative progenitor of sweetpotato, which is considered a model species for sweetpotato, including genetic, cytological, and physiological analyses. RESULTS Here, we generated the chromosome-scale genome sequence of SR-forming diploid I. trifida var. Y22 with high heterozygosity (2.20%). Although the chromosome-based synteny analysis revealed that the I. trifida shared conserved karyotype with Ipomoea nil after the separation, I. trifida had a much smaller genome than I. nil due to more efficient eliminations of LTR-retrotransposons and lack of species-specific amplification bursts of LTR-RTs. A comparison with four non-SR-forming species showed that the evolution of the beta-amylase gene family may be related to SR formation. We further investigated the relationship of the key gene BMY11 (with identity 47.12% to beta-amylase 1) with this important agronomic trait by both gene expression profiling and quantitative trait locus (QTL) mapping. And combining SR morphology and structure, gene expression profiling and qPCR results, we deduced that the products of the activity of BMY11 in splitting starch granules and be recycled to synthesize larger granules, contributing to starch accumulation and SR swelling. Moreover, we found the expression pattern of BMY11, sporamin proteins and the key genes involved in carbohydrate metabolism and stele lignification were similar to that of sweetpotato during the SR development. CONCLUSIONS We constructed the high-quality genome reference of the highly heterozygous I. trifida through a combined approach and this genome enables a better resolution of the genomics feature and genome evolutions of this species. Sweetpotato SR development genes can be identified in I. trifida and these genes perform similar functions and patterns, showed that the diploid I. trifida var. Y22 with typical SR could be considered an ideal model for the studies of sweetpotato SR development.
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Affiliation(s)
- Ming Li
- Institute of Biotechnology and Nuclear Technology, Sichuan Academy of Agricultural Sciences, Chengdu, 610061 Sichuan People’s Republic of China
- Key Laboratory of Bio-Resource and Eco-Environment of Ministry of Education, College of Life Sciences, Sichuan University, Chengdu, 610065 Sichuan People’s Republic of China
| | - Songtao Yang
- Crop Research Institute, Sichuan Academy of Agricultural Sciences, Chengdu, 610066 Sichuan People’s Republic of China
| | - Wei Xu
- Novogene Bioinformatics Institute, Beijing, 100083 People’s Republic of China
| | - Zhigang Pu
- Institute of Biotechnology and Nuclear Technology, Sichuan Academy of Agricultural Sciences, Chengdu, 610061 Sichuan People’s Republic of China
| | - Junyan Feng
- Institute of Biotechnology and Nuclear Technology, Sichuan Academy of Agricultural Sciences, Chengdu, 610061 Sichuan People’s Republic of China
| | - Zhangying Wang
- Guangdong Provincial Key Laboratory of Crops Genetics and Improvement, Crops Research Institute, Guangdong Academy of Agricultural Sciences, Guangzhou, 510640 Guangdong People’s Republic of China
| | - Cong Zhang
- Institute of Biotechnology and Nuclear Technology, Sichuan Academy of Agricultural Sciences, Chengdu, 610061 Sichuan People’s Republic of China
| | - Meifang Peng
- Institute of Biotechnology and Nuclear Technology, Sichuan Academy of Agricultural Sciences, Chengdu, 610061 Sichuan People’s Republic of China
| | - Chunguang Du
- Department of Biology, Montclair State University, Montclair, NJ 07043 USA
| | - Feng Lin
- Institute of Biotechnology and Nuclear Technology, Sichuan Academy of Agricultural Sciences, Chengdu, 610061 Sichuan People’s Republic of China
| | - Changhe Wei
- Key Laboratory of Bio-Resource and Eco-Environment of Ministry of Education, College of Life Sciences, Sichuan University, Chengdu, 610065 Sichuan People’s Republic of China
| | - Shuai Qiao
- Crop Research Institute, Sichuan Academy of Agricultural Sciences, Chengdu, 610066 Sichuan People’s Republic of China
| | - Hongda Zou
- Guangdong Provincial Key Laboratory of Crops Genetics and Improvement, Crops Research Institute, Guangdong Academy of Agricultural Sciences, Guangzhou, 510640 Guangdong People’s Republic of China
| | - Lei Zhang
- Novogene Bioinformatics Institute, Beijing, 100083 People’s Republic of China
| | - Yan Li
- Key Laboratory of Bio-Resource and Eco-Environment of Ministry of Education, College of Life Sciences, Sichuan University, Chengdu, 610065 Sichuan People’s Republic of China
| | - Huan Yang
- Key Laboratory of Bio-Resource and Eco-Environment of Ministry of Education, College of Life Sciences, Sichuan University, Chengdu, 610065 Sichuan People’s Republic of China
| | - Anzhong Liao
- Crop Research Institute, Sichuan Academy of Agricultural Sciences, Chengdu, 610066 Sichuan People’s Republic of China
| | - Wei Song
- Crop Research Institute, Sichuan Academy of Agricultural Sciences, Chengdu, 610066 Sichuan People’s Republic of China
| | - Zhongren Zhang
- Novogene Bioinformatics Institute, Beijing, 100083 People’s Republic of China
| | - Ji Li
- Novogene Bioinformatics Institute, Beijing, 100083 People’s Republic of China
| | - Kai Wang
- Novogene Bioinformatics Institute, Beijing, 100083 People’s Republic of China
| | - Yizheng Zhang
- Key Laboratory of Bio-Resource and Eco-Environment of Ministry of Education, College of Life Sciences, Sichuan University, Chengdu, 610065 Sichuan People’s Republic of China
| | - Honghui Lin
- Key Laboratory of Bio-Resource and Eco-Environment of Ministry of Education, College of Life Sciences, Sichuan University, Chengdu, 610065 Sichuan People’s Republic of China
| | - Jinbo Zhang
- Novogene Bioinformatics Institute, Beijing, 100083 People’s Republic of China
| | - Wenfang Tan
- Crop Research Institute, Sichuan Academy of Agricultural Sciences, Chengdu, 610066 Sichuan People’s Republic of China
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Duan X, Shen Z, Zhang X, Wang Y, Huang Y. Production of recombinant beta-amylase of Bacillus aryabhattai. Prep Biochem Biotechnol 2019; 49:88-94. [PMID: 30636502 DOI: 10.1080/10826068.2018.1536987] [Citation(s) in RCA: 7] [Impact Index Per Article: 1.4] [Reference Citation Analysis] [Abstract] [Key Words] [Track Full Text] [Journal Information] [Subscribe] [Scholar Register] [Indexed: 12/22/2022]
Abstract
In this study, the effects of carbon source, nitrogen source, and metal ions on cell growth and Bacillus aryabhattai β-amylase production in recombinant Brevibacillus choshinensis were investigated. The optimal medium for β-amylase production, containing glucose (7.5 g·L-1), pig bone peptone (40.0 g·L-1), Mg2+ (0.05 mol·L-1), and trace metal elements, was determined through single-factor experiments in shake flasks. When cultured in the optimized medium, the β-amylase yield reached 925.4 U mL-1, which was 7.2-fold higher than that obtained in the initial medium. Besides, a modified feeding strategy was proposed and applied in a 3-L fermentor fed with glucose, which achieved a dry cell weight of 15.4 g L-1. Through this cultivation approached 30 °C with 0 g·L-1 initial glucose concentration, the maximum β-amylase activity reached 5371.8 U mL-1, which was 41.7-fold higher than that obtained with the initial medium in shake flask.
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Affiliation(s)
- Xuguo Duan
- a College of Light Industry and Food Engineering , Nanjing Forestry University , Nanjing , Jiangsu , China
| | - Zhenyan Shen
- a College of Light Industry and Food Engineering , Nanjing Forestry University , Nanjing , Jiangsu , China
| | - Xinyi Zhang
- a College of Light Industry and Food Engineering , Nanjing Forestry University , Nanjing , Jiangsu , China
| | - Yaosong Wang
- a College of Light Industry and Food Engineering , Nanjing Forestry University , Nanjing , Jiangsu , China
| | - Yue Huang
- a College of Light Industry and Food Engineering , Nanjing Forestry University , Nanjing , Jiangsu , China
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Das R, Kayastha AM. An antioxidant rich novel β-amylase from peanuts (Arachis hypogaea): Its purification, biochemical characterization and potential applications. Int J Biol Macromol 2018; 111:148-157. [PMID: 29305882 DOI: 10.1016/j.ijbiomac.2017.12.130] [Citation(s) in RCA: 9] [Impact Index Per Article: 1.5] [Reference Citation Analysis] [Abstract] [Key Words] [MESH Headings] [Track Full Text] [Journal Information] [Subscribe] [Scholar Register] [Received: 10/16/2017] [Revised: 12/15/2017] [Accepted: 12/25/2017] [Indexed: 12/19/2022]
Abstract
β-Amylase from un-germinated seeds of peanut (Arachis hypogaea) was purified to apparent electrophoretic homogeneity with final purification fold of 205 and specific activity of 361μmol/min/mg protein. The enzyme was purified employing simple purification techniques for biochemical characterization. The purified enzyme was identified as β-amylase with Mr of 31kDa. The enzyme displayed its optimum catalytic activity at pH5.0 and 60°C with activation energy of 4.5kcal/mol and Q10 1.2. The enzyme displayed Km and Vmax values, for soluble potato starch of 1.28mg/mL and 363.63μmol/min/mg, respectively. Thermal inactivation of β-amylase at 65°C resulted into first-order kinetics with rate constant 0.0126min-1 and t½ 55min. The enzyme was observed to act on native granular potato starch, which could minimize the high cost occurring from solubilization of starch in industries. Enzyme fractions scavenge 2, 2-diphenyl-1-picrylhydrazyl (DPPH) free radical, indicating its antioxidative nature. In addition, the purified β-amylase was successfully utilized for the improvement of antioxidant potential of wheat. These findings suggest that β-amylase from peanuts have potential application in food and pharmaceutical industries.
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Affiliation(s)
- Ranjana Das
- School of Biotechnology, Institute of Science, Banaras Hindu University, Varanasi 221005, India
| | - Arvind M Kayastha
- School of Biotechnology, Institute of Science, Banaras Hindu University, Varanasi 221005, India.
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15
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Lahmar I, Radeva G, Marinkova D, Velitchkova M, Belghith H, Ben abdallah F, Yotova L, Belghith K. Immobilization and topochemical mechanism of a new β-amylase extracted from Pergularia tomentosa. Process Biochem 2018. [DOI: 10.1016/j.procbio.2017.09.007] [Citation(s) in RCA: 2] [Impact Index Per Article: 0.3] [Reference Citation Analysis] [Track Full Text] [Journal Information] [Submit a Manuscript] [Subscribe] [Scholar Register] [Indexed: 10/18/2022]
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16
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Srivastava G, Roy S, Kayastha AM. Immobilisation of Fenugreek β-amylase on chitosan/PVP blend and chitosan coated PVC beads: A comparative study. Food Chem 2015; 172:844-51. [DOI: 10.1016/j.foodchem.2014.09.145] [Citation(s) in RCA: 20] [Impact Index Per Article: 2.2] [Reference Citation Analysis] [Track Full Text] [Journal Information] [Subscribe] [Scholar Register] [Received: 05/10/2014] [Revised: 08/19/2014] [Accepted: 09/25/2014] [Indexed: 11/29/2022]
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17
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Srivastava G, Singh K, Talat M, Srivastava ON, Kayastha AM. Functionalized graphene sheets as immobilization matrix for Fenugreek β-amylase: enzyme kinetics and stability studies. PLoS One 2014; 9:e113408. [PMID: 25412079 PMCID: PMC4239066 DOI: 10.1371/journal.pone.0113408] [Citation(s) in RCA: 33] [Impact Index Per Article: 3.3] [Reference Citation Analysis] [Abstract] [MESH Headings] [Track Full Text] [Download PDF] [Figures] [Journal Information] [Subscribe] [Scholar Register] [Received: 07/07/2014] [Accepted: 10/15/2014] [Indexed: 01/16/2023] Open
Abstract
β-Amylase finds application in food and pharmaceutical industries. Functionalized graphene sheets were customised as a matrix for covalent immobilization of Fenugreek β-amylase using glutaraldehyde as a cross-linker. The factors affecting the process were optimized using Response Surface Methodology based Box-Behnken design of experiment which resulted in 84% immobilization efficiency. Scanning and Transmission Electron Microscopy (SEM, TEM) and Fourier Tansform Infrared (FTIR) spectroscopy were employed for the purpose of characterization of attachment of enzyme on the graphene. The enzyme kinetic studies were carried out for obtaining best catalytic performance and enhanced reusability. Optimum temperature remained unchanged, whereas optimum pH showed shift towards acidic range for immobilized enzyme. Increase in thermal stability of immobilized enzyme and non-toxic nature of functionalized graphene can be exploited for production of maltose in food and pharmaceutical industries.
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Affiliation(s)
- Garima Srivastava
- School of Biotechnology, Faculty of Science, Banaras Hindu University, Varanasi, India
| | - Kritika Singh
- School of Biotechnology, Faculty of Science, Banaras Hindu University, Varanasi, India
| | - Mahe Talat
- Nanoscience and Nanotechnology Unit, Department of Physics, Banaras Hindu University, Varanasi, India
| | - Onkar Nath Srivastava
- Nanoscience and Nanotechnology Unit, Department of Physics, Banaras Hindu University, Varanasi, India
| | - Arvind M. Kayastha
- School of Biotechnology, Faculty of Science, Banaras Hindu University, Varanasi, India
- * E-mail:
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18
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Srivastava G, Singh VK, Kayastha AM. Identification of active site residues of Fenugreek β-amylase: chemical modification and in silico approach. PLANT PHYSIOLOGY AND BIOCHEMISTRY : PPB 2014; 83:217-224. [PMID: 25179433 DOI: 10.1016/j.plaphy.2014.08.005] [Citation(s) in RCA: 3] [Impact Index Per Article: 0.3] [Reference Citation Analysis] [Abstract] [Key Words] [MESH Headings] [Track Full Text] [Subscribe] [Scholar Register] [Received: 05/27/2014] [Accepted: 08/07/2014] [Indexed: 06/03/2023]
Abstract
The amino acid sequence of Fenugreek β-amylase is not available in protein data bank. Therefore, an attempt has been made to identify the catalytic amino acid residues of enzyme by employing studies of pH dependence of enzyme catalysis, chemical modification and bioinformatics. Treatment of purified Fenugreek β-amylase with EDAC in presence of glycine methyl ester and sulfhydryl group specific reagents (IAA, NEM and p-CMB), followed a pseudo first-order kinetics and resulted in effective inactivation of enzyme. The reaction with EDAC in presence of NTEE (3-nitro-l-tyrosine ethylester) resulted into modification of two carboxyl groups per molecule of enzyme and presence of one accessible sulfhydryl group at the active site, per molecule of enzyme was ascertained by titration with DTNB. The above results were supported by the prevention of inactivation of enzyme in presence of substrate. Based on MALDI-TOF analysis of purified Fenugreek β-amylase and MASCOT search, β-amylase of Medicago sativa was found to be the best match. To further confirm the amino acid involved in catalysis, homology modelling of β-amylase of M. sativa was performed. The sequence alignment, superimposition of template and target models, along with study of interactions involved in docking of sucrose and maltose at the active site, led to identification of Glu187, Glu381 and Cys344 as active site residues.
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Affiliation(s)
- Garima Srivastava
- School of Biotechnology, Faculty of Science, Banaras Hindu University, Varanasi, India.
| | - Vinay K Singh
- School of Biotechnology, Faculty of Science, Banaras Hindu University, Varanasi, India.
| | - Arvind M Kayastha
- School of Biotechnology, Faculty of Science, Banaras Hindu University, Varanasi, India.
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