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Huang J, Zhao X, Zhang Y, Chen Y, Zhang X, Yi Y, Ju Z, Sun W. Chalcone-Synthase-Encoding RdCHS1 Is Involved in Flavonoid Biosynthesis in Rhododendron delavayi. Molecules 2024; 29:1822. [PMID: 38675642 PMCID: PMC11054853 DOI: 10.3390/molecules29081822] [Citation(s) in RCA: 0] [Impact Index Per Article: 0] [Reference Citation Analysis] [Abstract] [Key Words] [MESH Headings] [Grants] [Track Full Text] [Journal Information] [Subscribe] [Scholar Register] [Received: 01/05/2024] [Revised: 03/18/2024] [Accepted: 04/10/2024] [Indexed: 04/28/2024] Open
Abstract
Flower color is an important ornamental feature that is often modulated by the contents of flavonoids. Chalcone synthase is the first key enzyme in the biosynthesis of flavonoids, but little is known about the role of R. delavayi CHS in flavonoid biosynthesis. In this paper, three CHS genes (RdCHS1-3) were successfully cloned from R. delavayi flowers. According to multiple sequence alignment and a phylogenetic analysis, only RdCHS1 contained all the highly conserved and important residues, which was classified into the cluster of bona fide CHSs. RdCHS1 was then subjected to further functional analysis. Real-time PCR analysis revealed that the transcripts of RdCHS1 were the highest in the leaves and lowest in the roots; this did not match the anthocyanin accumulation patterns during flower development. Biochemical characterization displayed that RdCHS1 could catalyze p-coumaroyl-CoA and malonyl-CoA molecules to produce naringenin chalcone. The physiological function of RdCHS1 was checked in Arabidopsis mutants and tobacco, and the results showed that RdCHS1 transgenes could recover the color phenotypes of the tt4 mutant and caused the tobacco flower color to change from pink to dark pink through modulating the expressions of endogenous structural and regulatory genes in the tobacco. All these results demonstrate that RdCHS1 fulfills the function of a bona fide CHS and contributes to flavonoid biosynthesis in R. delavayi.
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Affiliation(s)
- Ju Huang
- Key Laboratory of State Forestry Administration on Biodiversity Conservation in Karst Mountain Area of Southwest of China, School of Life Science, Guizhou Normal University, Guiyang 550025, China; (J.H.); (X.Z.); (Y.Z.); (Y.C.); (X.Z.); (Y.Y.)
| | - Xin Zhao
- Key Laboratory of State Forestry Administration on Biodiversity Conservation in Karst Mountain Area of Southwest of China, School of Life Science, Guizhou Normal University, Guiyang 550025, China; (J.H.); (X.Z.); (Y.Z.); (Y.C.); (X.Z.); (Y.Y.)
| | - Yan Zhang
- Key Laboratory of State Forestry Administration on Biodiversity Conservation in Karst Mountain Area of Southwest of China, School of Life Science, Guizhou Normal University, Guiyang 550025, China; (J.H.); (X.Z.); (Y.Z.); (Y.C.); (X.Z.); (Y.Y.)
| | - Yao Chen
- Key Laboratory of State Forestry Administration on Biodiversity Conservation in Karst Mountain Area of Southwest of China, School of Life Science, Guizhou Normal University, Guiyang 550025, China; (J.H.); (X.Z.); (Y.Z.); (Y.C.); (X.Z.); (Y.Y.)
| | - Ximin Zhang
- Key Laboratory of State Forestry Administration on Biodiversity Conservation in Karst Mountain Area of Southwest of China, School of Life Science, Guizhou Normal University, Guiyang 550025, China; (J.H.); (X.Z.); (Y.Z.); (Y.C.); (X.Z.); (Y.Y.)
| | - Yin Yi
- Key Laboratory of State Forestry Administration on Biodiversity Conservation in Karst Mountain Area of Southwest of China, School of Life Science, Guizhou Normal University, Guiyang 550025, China; (J.H.); (X.Z.); (Y.Z.); (Y.C.); (X.Z.); (Y.Y.)
| | - Zhigang Ju
- Pharmacy College, Guizhou University of Traditional Chinese Medicine, Guiyang 550025, China
| | - Wei Sun
- Key Laboratory of State Forestry Administration on Biodiversity Conservation in Karst Mountain Area of Southwest of China, School of Life Science, Guizhou Normal University, Guiyang 550025, China; (J.H.); (X.Z.); (Y.Z.); (Y.C.); (X.Z.); (Y.Y.)
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Li A, Wang F, Ding T, Li K, Liu H, Zhang Q, Mu Q, Zhao H, Shan S, Wang P. Genome-wide DNA methylation dynamics and RNA-seq analysis during grape (cv. 'Cabernet Franc') skin coloration. Genomics 2024; 116:110810. [PMID: 38402913 DOI: 10.1016/j.ygeno.2024.110810] [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: 11/02/2023] [Revised: 02/18/2024] [Accepted: 02/19/2024] [Indexed: 02/27/2024]
Abstract
This study generated whole genome DNA methylation maps to characterize DNA methylomes of grape (cv. 'Cabernet Franc') skins and examine their functional significance during grape skin coloration. We sampled grape skin tissues at three key stages (the early stage of grape berry swelling, the late stage of grape berry swelling and the veraison) during which the color of grape berries changed from green to red. DNA methylation levels of grape skins at the three stages were higher in transposable element regions than in the genic regions, and the CG and CHG DNA methylation levels of the genic region were higher than the CHH DNA methylation levels. We identified differentially methylated regions (DMRs) in S2_vs_S1 and S3_vs_S1. The results indicated that DMRs predominantly occurred within the CHH context during grape skin coloration. Many gene ontology (GO)-enriched DMR-related genes were involved in "nucleotide binding," "catalytic activity" and "ribonucleotide binding" terms; however, many KEGG-enriched DMR-related genes were involved in the "flavonoid biosynthesis" pathway. Our results could provide an important foundation for future research on the development mechanism of grape berries.
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Affiliation(s)
- Ao Li
- Shandong Academy of Grape, Jinan 250100, China
| | | | | | - Ke Li
- Shandong Academy of Grape, Jinan 250100, China
| | - Huiping Liu
- Shandong Academy of Grape, Jinan 250100, China
| | | | - Qian Mu
- Shandong Academy of Grape, Jinan 250100, China
| | | | - Shouming Shan
- College of Enology and Horticulture, Ningxia University, Ningxia 750021, China.
| | - Pengfei Wang
- Shandong Academy of Grape, Jinan 250100, China; Key Laboratory of East China Urban Agriculture, Ministry of Agriculture and Rural Affairs, Jinan 250100, China.
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Veerapandiyan K, Ravichandiran K, N Patra C, Balan B, Usha B. De novo assembly and annotation of Caesalpinia bonducella L. seed transcriptome identifies key genes in the biosynthesis of bonducellin, a homoisoflavonoid. Nat Prod Res 2024:1-8. [PMID: 38217326 DOI: 10.1080/14786419.2024.2301740] [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: 10/28/2023] [Accepted: 12/30/2023] [Indexed: 01/15/2024]
Abstract
Caesalpinia bonducella L. is a traditional medicinal plant containing a potential homoisoflavonoid, bonducellin, with therapeutic values against polycystic ovary syndrome, oxidative damage, pathogenic bacteria, irregular menstrual cycle, ovarian cancer and diabetes. Owing to the multi-therapeutic properties of bonducellin, knowledge of its biosynthetic pathway genes will help understand its regulatory mechanism and thus improve the yield. This study sequenced C. bonducella seed mRNA transcriptome to identify the genes in bonducellin biosynthesis. Before this, the presence of bonducellin in the seed samples was analysed by HPLC using the chemically synthesised bonducellin as the standard. Seven key genes encoding enzymes involved in the synthesis of bonducellin via the phenylpropanoid pathway were identified. The expression of selective genes from the bonducellin biosynthetic pathway was validated using qRT-PCR and comparable with RNA-Seq data. Here, we put forth the sequences of 67,560 genes from C. bonducella and highlight the bonducellin biosynthetic pathway genes.
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Affiliation(s)
- Kandasamy Veerapandiyan
- Department of Genetic Engineering, SRM Institute of Science and Technology, Kattankulathur, India
| | - Kumar Ravichandiran
- Department of Genetic Engineering, SRM Institute of Science and Technology, Kattankulathur, India
| | - Chandrima N Patra
- Department of Chemistry, SRM Institute of Science and Technology, Kattankulathur, India
| | - Bipin Balan
- Dipartimento di Scienze Agrarie Alimentari Forestali, Università di Palermo, Palermo, Italy
| | - Balasundaram Usha
- Department of Genetic Engineering, SRM Institute of Science and Technology, Kattankulathur, India
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Salami M, Heidari B, Batley J, Wang J, Tan XL, Richards C, Tan H. Integration of genome-wide association studies, metabolomics, and transcriptomics reveals phenolic acid- and flavonoid-associated genes and their regulatory elements under drought stress in rapeseed flowers. FRONTIERS IN PLANT SCIENCE 2024; 14:1249142. [PMID: 38273941 PMCID: PMC10808681 DOI: 10.3389/fpls.2023.1249142] [Citation(s) in RCA: 0] [Impact Index Per Article: 0] [Reference Citation Analysis] [Abstract] [Key Words] [Track Full Text] [Figures] [Subscribe] [Scholar Register] [Received: 06/28/2023] [Accepted: 11/03/2023] [Indexed: 01/27/2024]
Abstract
Introduction Biochemical and metabolic processes help plants tolerate the adverse effects of drought. In plants accumulating bioactive compounds, understanding the genetic control of the biosynthesis of biochemical pathways helps the discovery of candidate gene (CG)-metabolite relationships. Methods The metabolic profile of flowers in 119 rapeseed (Brassica napus) accessions was assessed over two irrigation treatments, one a well-watered (WW) condition and the other a drought stress (DS) regime. We integrated information gained from 52,157 single-nucleotide polymorphism (SNP) markers, metabolites, and transcriptomes to identify linked SNPs and CGs responsible for the genetic control of flower phenolic compounds and regulatory elements. Results In a genome-wide association study (GWAS), of the SNPs tested, 29,310 SNPs were qualified to assess the population structure and linkage disequilibrium (LD), of which several SNPs for radical scavenging activity (RSA) and total flavanol content (TFLC) were common between the two irrigation conditions and pleiotropic SNPs were found for chlorogenic and coumaric acids content. The principal component analysis (PCA) and stepwise regression showed that chlorogenic acid and epicatechin in WW and myricetin in DS conditions were the most important components for RSA. The hierarchical cluster analysis (HCA) showed that vanillic acid, myricetin, gallic acid, and catechin were closely associated in both irrigation conditions. Analysis of GWAS showed that 60 CGs were identified, of which 18 were involved in stress-induced pathways, phenylpropanoid pathway, and flavonoid modifications. Of the CGs, PAL1, CHI, UGT89B1, FLS3, CCR1, and CYP75B137 contributed to flavonoid biosynthetic pathways. The results of RNA sequencing (RNA-seq) revealed that the transcript levels of PAL, CHI, and CYP75B137 known as early flavonoid biosynthesis-related genes and FLS3, CCR1, and UGT89B1 related to the later stages were increased during drought conditions. The transcription factors (TFs) NAC035 and ERF119 related to flavonoids and phenolic acids were upregulated under drought conditions. Discussion These findings expand our knowledge on the response mechanisms to DS, particularly regarding the regulation of key phenolic biosynthetic genes in rapeseed. Our data also provided specific linked SNPs for marker-assisted selection (MAS) programs and CGs as resources toward realizing metabolomics-associated breeding of rapeseed.
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Affiliation(s)
- Maryam Salami
- Department of Plant Production and Genetics, School of Agriculture, Shiraz University, Shiraz, Iran
| | - Bahram Heidari
- Department of Plant Production and Genetics, School of Agriculture, Shiraz University, Shiraz, Iran
| | - Jacqueline Batley
- School of Biological Sciences, University of Western Australia, Perth, WA, Australia
| | - Jin Wang
- School of Life Sciences, Jiangsu University, Zhenjiang, China
| | - Xiao-Li Tan
- School of Life Sciences, Jiangsu University, Zhenjiang, China
| | - Christopher Richards
- United States Department of Agriculture (USDA) Agricultural Research Service (ARS), National Laboratory for Genetic Resources Preservation, Fort Collins, CO, United States
| | - Helin Tan
- State Key Laboratory of Crop Genetics and Germplasm Enhancement, Nanjing Agricultural University, Nanjing, China
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Feng S, Yao YT, Wang BB, Li YM, Li L, Bao AK. Flavonoids are involved in salt tolerance through ROS scavenging in the halophyte Atriplex canescens. PLANT CELL REPORTS 2023; 43:5. [PMID: 38127154 DOI: 10.1007/s00299-023-03087-6] [Citation(s) in RCA: 0] [Impact Index Per Article: 0] [Reference Citation Analysis] [Abstract] [Key Words] [MESH Headings] [Grants] [Track Full Text] [Subscribe] [Scholar Register] [Received: 07/05/2023] [Accepted: 09/26/2023] [Indexed: 12/23/2023]
Abstract
KEY MESSAGE The content of flavonoids could increase in A. canescens under saline conditions. Overexpression of AcCHI in transgenic A. thaliana promotes flavonoid biosynthesis, thereby functioning in the tolerance of transgenic plants to salt and osmotic stress by maintaining ROS homeostasis. Atriplex canescens is a halophytic forage shrub with excellent adaptation to saline environment. Our previous study showed that a large number of genes related to the biosynthesis of flavonoids in A. canescens were significantly up-regulated by NaCl treatments. However, it remains unclear whether flavonoids are involved in A. canescens response to salinity. In this study, we found that the accumulation of flavonoids significantly increased in either the leaves or roots of A. canescens seedling under 100 and 300 mM NaCl treatments. Correspondingly, AcCHS, AcCHI and AcF3H, which encode three key enzymes (chalcone synthases (CHS), chalcone isomerase (CHI), and flavanone 3-hydroxylase (F3H), respectively) of flavonoids biosynthesis, were significantly induced in the roots or leaves of A. canescens by 100 or 300 mM NaCl. Then, we generated the transgenic Arabidopsis thaliana overexpressing AcCHI and found that transgenic plants accumulated more flavonoids through enhancing the pathway of flavonoids biosynthesis. Furthermore, overexpression of AcCHI conferred salt and osmotic stress tolerance in transgenic A. thaliana. Contrasted with wild-type A. thaliana, transgenic lines grew better with greater biomass, less H2O2 content as well as lower relative plasma permeability in either salt or osmotic stress conditions. In conclusion, our results indicate that flavonoids play an important role in A. canescens response to salt stress through reactive oxygen species (ROS) scavenging and the key enzyme gene AcCHI in flavonoids biosynthesis pathway of A. canescens has the potential to improve the stress tolerance of forages and crops.
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Affiliation(s)
- Shan Feng
- State Key Laboratory of Herbage Improvement and Grassland Agro-Ecosystems, Key Laboratory of Grassland Livestock Industry Innovation, Ministry of Agriculture and Rural Affairs, College of Pastoral Agriculture Science and Technology, Lanzhou University, Lanzhou, 730000, China
| | - Yu-Ting Yao
- State Key Laboratory of Herbage Improvement and Grassland Agro-Ecosystems, Key Laboratory of Grassland Livestock Industry Innovation, Ministry of Agriculture and Rural Affairs, College of Pastoral Agriculture Science and Technology, Lanzhou University, Lanzhou, 730000, China
| | - Bei-Bei Wang
- State Key Laboratory of Herbage Improvement and Grassland Agro-Ecosystems, Key Laboratory of Grassland Livestock Industry Innovation, Ministry of Agriculture and Rural Affairs, College of Pastoral Agriculture Science and Technology, Lanzhou University, Lanzhou, 730000, China
| | - Yi-Meng Li
- School of Pharmacy, Lanzhou University, Lanzhou, 730000, China
| | - Li Li
- Institute of Grassland, Xinjiang Academy of Animal Science, Urumqi, 830000, Xinjiang, China
| | - Ai-Ke Bao
- State Key Laboratory of Herbage Improvement and Grassland Agro-Ecosystems, Key Laboratory of Grassland Livestock Industry Innovation, Ministry of Agriculture and Rural Affairs, College of Pastoral Agriculture Science and Technology, Lanzhou University, Lanzhou, 730000, China.
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Younuskunju S, Mohamoud YA, Mathew LS, Mayer KFX, Suhre K, Malek JA. Genome-wide association of dry (Tamar) date palm fruit color. THE PLANT GENOME 2023; 16:e20373. [PMID: 37621134 DOI: 10.1002/tpg2.20373] [Citation(s) in RCA: 0] [Impact Index Per Article: 0] [Reference Citation Analysis] [Abstract] [MESH Headings] [Grants] [Track Full Text] [Subscribe] [Scholar Register] [Received: 01/08/2023] [Revised: 06/05/2023] [Accepted: 07/03/2023] [Indexed: 08/26/2023]
Abstract
Date palm (Phoenix dactylifera) fruit (dates) are an economically and culturally significant crop in the Middle East and North Africa. There are hundreds of different commercial cultivars producing dates with distinctive shapes, colors, and sizes. Genetic studies of some date palm traits have been performed, including sex determination, sugar content, and fresh fruit color. In this study, we used genome sequences and image data of 199 dry dates (Tamar) collected from 14 countries to identify genetic loci associated with the color of this fruit stage. Here, we find loci across multiple linkage groups (LG) associated with dry fruit color phenotype. We recover both the previously identified VIRESCENS (VIR) genotype associated with fresh fruit yellow or red color and new associations with the lightness and darkness of dry fruit. This study will add resolution to our understanding of date color phenotype, especially at the most commercially important Tamar stage.
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Affiliation(s)
- Shameem Younuskunju
- Genomics Laboratory, Weill Cornell Medicine-Qatar, Doha, Qatar
- School of Life Sciences, Technical University of Munich, Munich, Germany
| | | | - Lisa S Mathew
- Clinical Genomics Laboratory, Sidra Medicine, Doha, Qatar
| | - Klaus F X Mayer
- School of Life Sciences, Technical University of Munich, Munich, Germany
- Plant Genome and Systems Biology, Helmholtz Center Munich, Munich, Germany
| | - Karsten Suhre
- Department of Physiology, Weill Cornell Medicine-Qatar, Doha, Qatar
| | - Joel A Malek
- Genomics Laboratory, Weill Cornell Medicine-Qatar, Doha, Qatar
- Department of Genetic Medicine, Weill Cornell Medicine-Qatar, Doha, Qatar
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Yow AG, Laosuntisuk K, Young RA, Doherty CJ, Gillitt N, Perkins-Veazie P, Jenny Xiang QY, Iorizzo M. Comparative transcriptome analysis reveals candidate genes for cold stress response and early flowering in pineapple. Sci Rep 2023; 13:18890. [PMID: 37919298 PMCID: PMC10622448 DOI: 10.1038/s41598-023-45722-y] [Citation(s) in RCA: 0] [Impact Index Per Article: 0] [Reference Citation Analysis] [Abstract] [Key Words] [MESH Headings] [Grants] [Track Full Text] [Journal Information] [Subscribe] [Scholar Register] [Received: 06/05/2023] [Accepted: 10/23/2023] [Indexed: 11/04/2023] Open
Abstract
Pineapple originates from tropical regions in South America and is therefore significantly impacted by cold stress. Periodic cold events in the equatorial regions where pineapple is grown may induce early flowering, also known as precocious flowering, resulting in monetary losses due to small fruit size and the need to make multiple passes for harvesting a single field. Currently, pineapple is one of the most important tropical fruits in the world in terms of consumption, and production losses caused by weather can have major impacts on worldwide exportation potential and economics. To further our understanding of and identify mechanisms for low-temperature tolerance in pineapple, and to identify the relationship between low-temperature stress and flowering time, we report here a transcriptomic analysis of two pineapple genotypes in response to low-temperature stress. Using meristem tissue collected from precocious flowering-susceptible MD2 and precocious flowering-tolerant Dole-17, we performed pairwise comparisons and weighted gene co-expression network analysis (WGCNA) to identify cold stress, genotype, and floral organ development-specific modules. Dole-17 had a greater increase in expression of genes that confer cold tolerance. The results suggested that low temperature stress in Dole-17 plants induces transcriptional changes to adapt and maintain homeostasis. Comparative transcriptomic analysis revealed differences in cuticular wax biosynthesis, carbohydrate accumulation, and vernalization-related gene expression between genotypes. Cold stress induced changes in ethylene and abscisic acid-mediated pathways differentially between genotypes, suggesting that MD2 may be more susceptible to hormone-mediated early flowering. The differentially expressed genes and module hub genes identified in this study are potential candidates for engineering cold tolerance in pineapple to develop new varieties capable of maintaining normal reproduction cycles under cold stress. In addition, a total of 461 core genes involved in the development of reproductive tissues in pineapple were also identified in this study. This research provides an important genomic resource for understanding molecular networks underlying cold stress response and how cold stress affects flowering time in pineapple.
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Affiliation(s)
- Ashley G Yow
- Department of Horticultural Science, North Carolina State University, Raleigh, NC, 27695, USA
- Plants for Human Health Institute, North Carolina State University, Kannapolis, 28081, USA
| | - Kanjana Laosuntisuk
- Department of Molecular and Structural Biochemistry, North Carolina State University, Raleigh, NC, 27695, USA
| | - Roberto A Young
- Research Department of Dole, Standard Fruit de Honduras, Zona Mazapan, 31101, La Ceiba, Honduras
| | - Colleen J Doherty
- Department of Molecular and Structural Biochemistry, North Carolina State University, Raleigh, NC, 27695, USA
| | | | - Penelope Perkins-Veazie
- Department of Horticultural Science, North Carolina State University, Raleigh, NC, 27695, USA
- Plants for Human Health Institute, North Carolina State University, Kannapolis, 28081, USA
| | - Qiu-Yun Jenny Xiang
- Department of Plant and Microbial Biology, North Carolina State University, Raleigh, NC, 27695, USA
| | - Massimo Iorizzo
- Department of Horticultural Science, North Carolina State University, Raleigh, NC, 27695, USA.
- Plants for Human Health Institute, North Carolina State University, Kannapolis, 28081, USA.
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Li S, Zhang Y, Shi L, Cao S, Chen W, Yang Z. Involvement of a MYB Transcription Factor in Anthocyanin Biosynthesis during Chinese Bayberry ( Morella rubra) Fruit Ripening. BIOLOGY 2023; 12:894. [PMID: 37508327 PMCID: PMC10376099 DOI: 10.3390/biology12070894] [Citation(s) in RCA: 1] [Impact Index Per Article: 1.0] [Reference Citation Analysis] [Abstract] [Key Words] [Grants] [Track Full Text] [Subscribe] [Scholar Register] [Received: 05/20/2023] [Revised: 06/17/2023] [Accepted: 06/19/2023] [Indexed: 07/30/2023]
Abstract
Anthocyanin is a class of water-soluble flavonoids found in Chinese bayberry (Morella rubra) that is not only responsible for the variety of colors visible in nature but also has numerous health-promoting benefits in humans. Through comparative transcriptomics, we isolated and identified a transcription factor (TF) of the R2R3-MYB type, MrMYB9, in order to explore the anthocyanin biosynthesis pathway in red and white Chinese bayberries. MrMYB9 transcript was positively correlated with anthocyanin level and anthocyanin biosynthetic gene expression during Chinese bayberry fruit maturation (R-values in the range 0.54-0.84, p < 0.05). Sequence analysis revealed that MrMYB9 shared a similar R2R3 domain with MYB activators of anthocyanin biosynthesis in other plants. MrMYB9 substantially transactivated promoters of anthocyanin biosynthesis-related EBGs (MrCHI, MrF3'H, and MrANS) and LBGs (MrUFGT) upon co-expression of the AtEGL3 gene. Our findings indicated that MrMYB9 may positively modulate anthocyanin accumulation in Chinese bayberry.
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Affiliation(s)
- Saisai Li
- College of Biological and Environmental Sciences, Zhejiang Wanli University, Ningbo 315100, China
| | - Yijuan Zhang
- College of Biological and Environmental Sciences, Zhejiang Wanli University, Ningbo 315100, China
| | - Liyu Shi
- College of Biological and Environmental Sciences, Zhejiang Wanli University, Ningbo 315100, China
| | - Shifeng Cao
- College of Biological and Environmental Sciences, Zhejiang Wanli University, Ningbo 315100, China
| | - Wei Chen
- College of Biological and Environmental Sciences, Zhejiang Wanli University, Ningbo 315100, China
| | - Zhenfeng Yang
- College of Biological and Environmental Sciences, Zhejiang Wanli University, Ningbo 315100, China
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Shah FLA, Baharum SN, Goh HH, Leow TC, Ramzi AB, Oslan SN, Sabri S. Molecular cloning and in silico analysis of chalcone isomerase from Polygonum minus. Mol Biol Rep 2023; 50:5283-5294. [PMID: 37148413 DOI: 10.1007/s11033-023-08417-1] [Citation(s) in RCA: 0] [Impact Index Per Article: 0] [Reference Citation Analysis] [Abstract] [Key Words] [Grants] [Track Full Text] [Journal Information] [Subscribe] [Scholar Register] [Received: 02/24/2023] [Accepted: 03/29/2023] [Indexed: 05/08/2023]
Abstract
BACKGROUND Chalcone isomerase (CHI; EC 5.5.1.6) is one of the key enzymes in the flavonoid biosynthetic pathway that is responsible for the intramolecular cyclization of chalcones into specific 2S-flavanones. METHODS AND RESULTS In this study, the open reading frame (ORF) of CHI was successfully isolated from the cDNA of Polygonum minus at 711-bp long, encoding for 236 amino acid residues, with a predicted molecular weight of 25.4 kDa. Multiple sequence alignment and phylogenetic analysis revealed that the conserved residues (Thr50, Tyr108, Asn115, and Ser192) in the cleft of CHI enzyme group active site are present in PmCHI protein sequence and classified as type I. PmCHI comprises more hydrophobic residues without a signal peptide and transmembrane helices. The three-dimensional (3D) structure of PmCHI predicted through homology modeling was validated by Ramachandran plot and Verify3D, with values within the acceptable range of a good model. PmCHI was cloned into pET-28b(+) plasmid, expressed in Escherichia coli BL21(DE3) at 16 °C and partially purified. CONCLUSION These findings contribute to a deeper understanding of the PmCHI protein and its potential for further characterization of its functional properties in the flavonoid biosynthetic pathway.
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Affiliation(s)
- Fatin Lyana Azman Shah
- Enzyme and Microbial Technology Research Centre, Faculty of Biotechnology and Biomolecular Sciences, Universiti Putra Malaysia, 43400, Serdang, Malaysia
- Department of Microbiology, Faculty of Biotechnology and Biomolecular Sciences, Universiti Putra Malaysia, 43400, Serdang, Malaysia
| | - Syarul Nataqain Baharum
- Institute of Systems Biology (INBIOSIS), Universiti Kebangsaan Malaysia, 43600, Bangi, Selangor, Malaysia
| | - Hoe-Han Goh
- Institute of Systems Biology (INBIOSIS), Universiti Kebangsaan Malaysia, 43600, Bangi, Selangor, Malaysia
| | - Thean Chor Leow
- Enzyme and Microbial Technology Research Centre, Faculty of Biotechnology and Biomolecular Sciences, Universiti Putra Malaysia, 43400, Serdang, Malaysia
- Department of Cell and Molecular Biology, Faculty of Biotechnology and Biomolecular Sciences, Universiti Putra Malaysia, 43400, Serdang, Malaysia
| | - Ahmad Bazli Ramzi
- Institute of Systems Biology (INBIOSIS), Universiti Kebangsaan Malaysia, 43600, Bangi, Selangor, Malaysia
| | - Siti Nurbaya Oslan
- Enzyme and Microbial Technology Research Centre, Faculty of Biotechnology and Biomolecular Sciences, Universiti Putra Malaysia, 43400, Serdang, Malaysia
- Department of Biochemistry, Faculty of Biotechnology and Biomolecular Sciences, Universiti Putra Malaysia, 43400, Serdang, Malaysia
| | - Suriana Sabri
- Enzyme and Microbial Technology Research Centre, Faculty of Biotechnology and Biomolecular Sciences, Universiti Putra Malaysia, 43400, Serdang, Malaysia.
- Department of Microbiology, Faculty of Biotechnology and Biomolecular Sciences, Universiti Putra Malaysia, 43400, Serdang, Malaysia.
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Tamošiūnas PL, Pērkons I, Kukk K. Yeast-based system for in vivo evaluation of alleles of the anthocyanin production pathway. World J Microbiol Biotechnol 2023; 39:156. [PMID: 37039815 DOI: 10.1007/s11274-023-03593-5] [Citation(s) in RCA: 0] [Impact Index Per Article: 0] [Reference Citation Analysis] [Abstract] [Key Words] [Grants] [Journal Information] [Subscribe] [Scholar Register] [Received: 06/29/2022] [Accepted: 03/24/2023] [Indexed: 04/12/2023]
Abstract
Plants produce anthocyanins to incite the pollination and seed dispersion performed by pigment-attracted animals. These natural blue-to-red-coloured pigments can be used as food colourants and antioxidants. For this purpose, microbial bioproduction of anthocyanins has become of industrial interest in recent years. 20 new alleles of anthocyanin production pathway genes were extracted and characterised for protein expression level and stability using a developed single-PCR product gene-entry system for tagged protein synthesis in yeast S. cerevisiae. Enzymatic activities of these proteins in the episomally complemented in vivo systems were compared by HPLC-MS analysis. Results show that the codon optimisation of the anthocyanin pathway genes is not essential for the effective heterologous expression in yeast. Elevating the cellular abundance of CHS and F3H enzymes can increase anthocyanidin production from supplemented precursors. New alleles VmF3Hv1 and VuCHS were shown to have the best performance in the analysed system. System complementation with flavonoid 3',5'-hydroxylase substantially increases total anthocyanidin production. The described single-entry yeast episomal complementation system is a convenient and rapid tool for the complex evaluation of new alleles in vivo.
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Affiliation(s)
| | - Ingus Pērkons
- Institute of Food Safety, Animal Health and Environment "BIOR", Lejupes st. 3, Riga, LV-1076, Latvia
| | - Kaia Kukk
- Latvian Biomedical Research and Study Centre, Ratsupites st. 1, Riga, LV-1067, Latvia
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Su L, Zhang M, Zhang Y, Chen Y, Yang L, Wang Y, Song Y, Gong L. Transcriptome analysis reveals the crucial function of hyperoside in inhibiting anthocyanin accumulation in grape ( Vitis vinifera L.) fruits by inducing VvMYB62. FRONTIERS IN PLANT SCIENCE 2023; 14:1119749. [PMID: 36959929 PMCID: PMC10028066 DOI: 10.3389/fpls.2023.1119749] [Citation(s) in RCA: 0] [Impact Index Per Article: 0] [Reference Citation Analysis] [Abstract] [Key Words] [Track Full Text] [Figures] [Subscribe] [Scholar Register] [Received: 12/09/2022] [Accepted: 01/18/2023] [Indexed: 06/18/2023]
Abstract
INTRODUCTION The formation of color in plants is significantly dependent on anthocyaninpigments. Grape species vary in color due to the differences in anthocyanin accumulation. It is widely recognized that both biotic and abiotic conditions may have an impact on anthocyanin synthesis in plants. The underlying molecular mechanisms by which external application of hyperoside impacts anthocyanin formation in grapes, however, have received little attention. METHODS In the current study,the transcriptome of Gemstone seedless grape was examined using high-throughput RNA sequencing at various developmental stages reply to both control and hyperoside treatments. RESULTS The results of this study suggested that the major genes controlling anthocyanin accumulation in response to the externalinjection of hyperoside could be VvMYB62, VvPAL, VvCHS, and VvF3'5'H.Quantitative reverse transcription PCR (RT-qPCR) results were used to confirm the changes in the expression levels of the genes encoding the anthocyanin biosynthesis pathway under the control and hyperoside treatments. Using a transient transformation system, it was discovered that VvMYB62 was shown to regulate the anthocyanin accumulation at both the transcriptional and posttranslational levels and could be influenced by the external administration of hyperoside. In grape embryogenic calli, hyperoside could specifically suppress theexpression of VvMYB62 and anthocyanin accumulation. In this instance, the VvMYB62 characterisation brought attention to the significance of exogenous hyperoside-induced anthocyanin accumulation. Therefore, the results demonstrated that VvMYB62 could be hindered in the process of grape during anthocyanin accumulation caused by hyperoside. DISCUSSION These findings offer excellent candidate genes in the future breeding of novel grape varieties in addition to serving as a crucial reference for understanding the underlying molecular processes of hyperoside suppression of anthocyanin formation in plants.
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Affiliation(s)
- Ling Su
- Shandong Academy of Grape, Shandong Academy of Agricultural Sciences, Jinan, China
| | - Man Zhang
- College of Horticulture Science and Technology, Hebei Normal University of Science and Technology, Hebei, China
- Hebei Key Laboratory of Horticultural Germplasm Excavation and Innovative Utilization, Qinhuangdao, Hebei, China
| | - Yudie Zhang
- College of Horticulture Science and Technology, Hebei Normal University of Science and Technology, Hebei, China
- Hebei Key Laboratory of Horticultural Germplasm Excavation and Innovative Utilization, Qinhuangdao, Hebei, China
| | - Yingchun Chen
- Shandong Academy of Grape, Shandong Academy of Agricultural Sciences, Jinan, China
| | - Liying Yang
- Shandong Academy of Grape, Shandong Academy of Agricultural Sciences, Jinan, China
| | - Yongmei Wang
- Shandong Academy of Grape, Shandong Academy of Agricultural Sciences, Jinan, China
| | - Yangbo Song
- College of Agriculture and Animal Husbandry, Qinghai University, Xining, China
| | - Lei Gong
- Shandong Academy of Grape, Shandong Academy of Agricultural Sciences, Jinan, China
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12
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Negi S, Tak H, Madari S, Bhakta S, Ganapathi TR. Functional characterization of 5'-regulatory region of flavonoid 3',5'-hydroxylase-1 gene of banana plants. PROTOPLASMA 2023; 260:391-403. [PMID: 35727420 DOI: 10.1007/s00709-022-01785-8] [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: 03/11/2022] [Accepted: 06/03/2022] [Indexed: 06/15/2023]
Abstract
Generation of crops with broad-spectrum tolerance to biotic and abiotic stress conditions depends upon availability of genetic elements suitable for varied situations and diverse genotypes. Here, we characterize the 5'-upstream regulatory region of flavonoid 3'5'-hydroxylase-1 (F3'5'H-1) gene from banana and analyzed its tissue-specific and stress-mediated activation in genetic background of tobacco plants. MusaF3'5'H-1 is a stress-responsive gene as its expression is induced in banana after application of salicylic acid and methyl jasmonate while its transcript levels were drastically reduced in response to drought, high salinity and abscisic acid. PMusaF3'5'H-1 harbours cis-elements associated with stress conditions and those responsible for tissue-specific expression. Transgenic lines harbouring PMusaF3'5'H-1-GUS displays strong GUS expression in guard cells of stomata indicating guard cell preferred activity of PMusaF3'5'H-1 while its activity was undetectable in roots. Drought and high salinity induce strong expression of GUS in transgenic tobacco lines and exposure to abscisic acid, salicylic acid and methyl jasmonate revealed distinct profiles of GUS expression in transgenic lines confirming involvement of F3'5'H-1 in plant stress responses. Fluorescent β-galactosidase assay revealed induction profiles of PMusaF3'5'H-1 at different time points in transgenic lines exposed to salicylic acid and abscisic acid while strong suppression in GUS expression was observed after application of methyl jasmonate. The guard cell preferred activity of PMusaF3'5'H-1 and stress-mediated expression profiles of MusaF3'5'H-1 indicated the suitability of PMusaF3'5'H-1 for generating stress-enduring crops and analyzing guard cell functions.
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Affiliation(s)
- Sanjana Negi
- Department of Biotechnology, University of Mumbai, Mumbai, 400098, India
| | - Himanshu Tak
- Plant Cell Culture Technology Section, Nuclear Agriculture and Biotechnology Division, Bhabha Atomic Research Centre, Trombay, Mumbai, 400085, India.
- Homi Bhabha National Institute, Anushakti Nagar, Mumbai, 400094, India.
| | - Steffi Madari
- Department of Biotechnology, University of Mumbai, Mumbai, 400098, India
| | - Subham Bhakta
- Plant Cell Culture Technology Section, Nuclear Agriculture and Biotechnology Division, Bhabha Atomic Research Centre, Trombay, Mumbai, 400085, India
| | - T R Ganapathi
- Plant Cell Culture Technology Section, Nuclear Agriculture and Biotechnology Division, Bhabha Atomic Research Centre, Trombay, Mumbai, 400085, India
- Homi Bhabha National Institute, Anushakti Nagar, Mumbai, 400094, India
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13
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Chromosomal-level genome and multi-omics dataset provides new insights into leaf pigmentation in Acer palmatum. Int J Biol Macromol 2023; 227:93-104. [PMID: 36470439 DOI: 10.1016/j.ijbiomac.2022.11.303] [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: 08/23/2022] [Revised: 11/17/2022] [Accepted: 11/28/2022] [Indexed: 12/11/2022]
Abstract
Acer palmatum (A. palmatum), a deciduous shrub or small arbour which belongs to Acer of Aceraceae, is an excellent greening species as well as a beautiful ornamental plant. In this study, a high-quality chromosome-level reference genome for A. palmatum was constructed using Oxford Nanopore sequencing and Hi-C technology. The assembly genome was ∼745.78 Mb long with a contig N50 length of 3.20 Mb, and 95.30 % (710.71 Mb) of the assembly was anchored into 13 pseudochromosomes. A total of 28,559 protein-coding genes were obtained, ∼90.02 % (25,710) of which could be functionally annotated. The genomic evolutionary analysis revealed that A. palmatum is most closely related to A. yangbiense and A. truncatum, and underwent only an ancient gamma whole-genome duplication event. Despite lacking a recent independent WGD, 25,795 (90.32 %) genes of A. palmatum were duplicated, and the unique/expanded gene families were linked with genes involved in plant-pathogen interaction and several metabolic pathways, which might underpin adaptability. A combined genomic, transcriptomic, and metabolomic analysis related to the biosynthesis of anthocyanin in leaves during the different season were characterized. The results indicate that the dark-purple colouration of the leaves in spring was caused by a high amount of anthocyanins, especially delphinidin and its derivatives; and the red colouration of the leaves in autumn by a high amount of cyanidin 3-O-glucoside. In conclusion, these valuable multi-omic resources offer important foundations to explore the molecular regulation mechanism in leaf colouration and also provide a platform for the scientific and efficient utilization of A. palmatum.
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14
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Yu S, Li J, Peng T, Ni S, Feng Y, Wang Q, Wang M, Chu X, Fan Z, Li X, Yin H, Ge W, Liu W. Identification of Chalcone Isomerase Family Genes and Roles of CnCHI4 in Flavonoid Metabolism in Camellia nitidissima. Biomolecules 2022; 13:biom13010041. [PMID: 36671426 PMCID: PMC9855375 DOI: 10.3390/biom13010041] [Citation(s) in RCA: 5] [Impact Index Per Article: 2.5] [Reference Citation Analysis] [Abstract] [Key Words] [MESH Headings] [Track Full Text] [Figures] [Journal Information] [Subscribe] [Scholar Register] [Received: 10/17/2022] [Revised: 12/21/2022] [Accepted: 12/23/2022] [Indexed: 12/28/2022] Open
Abstract
Camellia nitidissima is a woody plant with high ornamental value, and its golden-yellow flowers are rich in a variety of bioactive substances, especially flavonoids, that are beneficial to human health. Chalcone isomerases (CHIs) are key enzymes in the flavonoid biosynthesis pathway; however, there is a scarcity of information regarding the CHI family genes of C. nitidissima. In this study, seven CHI genes of C. nitidissima were identified and divided into three subfamilies by phylogenetic analysis. The results of multiple sequence alignment revealed that, unlike CnCHI1/5/6/7, CnCHI2/3/4 are bona fide CHIs that contain all the active site and critical catalytic residues. Analysis of the expression patterns of CnCHIs and the total flavonoid content of the flowers at different developmental stages revealed that CnCHI4 might play an essential role in the flavonoid biosynthesis pathway of C. nitidissima. CnCHI4 overexpression significantly increased flavonoid production in Nicotiana tabacum and C. nitidissima. The results of the dual-luciferase reporter assay and yeast one-hybrid system revealed that CnMYB7 was the key transcription factor that governed the transcription of CnCHI4. The study provides a comprehensive understanding of the CHI family genes of C. nitidissima and performed a preliminary analysis of their functions and regulatory mechanisms.
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Affiliation(s)
- Suhang Yu
- Key Laboratory of Tree Breeding of Zhejiang Province, Research Institute of Subtropical Forestry, Chinese Academy of Forestry, Hangzhou 311400, China
- School of Marine Sciences, Ningbo University, Ningbo 315800, China
- Jinhua Moxian Horticultural Engineering Co., Ltd., Jinhua 321000, China
| | - Jiyuan Li
- Key Laboratory of Tree Breeding of Zhejiang Province, Research Institute of Subtropical Forestry, Chinese Academy of Forestry, Hangzhou 311400, China
- Jinhua Moxian Horticultural Engineering Co., Ltd., Jinhua 321000, China
| | - Ting Peng
- College of Agriculture, Guizhou University, Guiyang 550525, China
| | - Sui Ni
- School of Marine Sciences, Ningbo University, Ningbo 315800, China
| | - Yi Feng
- Key Laboratory of Tree Breeding of Zhejiang Province, Research Institute of Subtropical Forestry, Chinese Academy of Forestry, Hangzhou 311400, China
| | - Qiushi Wang
- Changchun GeneScience Pharmaceuticals Co., Ltd., Changchun 130103, China
| | - Minyan Wang
- Key Laboratory of Tree Breeding of Zhejiang Province, Research Institute of Subtropical Forestry, Chinese Academy of Forestry, Hangzhou 311400, China
| | - Xian Chu
- Key Laboratory of Tree Breeding of Zhejiang Province, Research Institute of Subtropical Forestry, Chinese Academy of Forestry, Hangzhou 311400, China
| | - Zhengqi Fan
- Key Laboratory of Tree Breeding of Zhejiang Province, Research Institute of Subtropical Forestry, Chinese Academy of Forestry, Hangzhou 311400, China
- Jinhua Moxian Horticultural Engineering Co., Ltd., Jinhua 321000, China
| | - Xinlei Li
- Key Laboratory of Tree Breeding of Zhejiang Province, Research Institute of Subtropical Forestry, Chinese Academy of Forestry, Hangzhou 311400, China
| | - Hengfu Yin
- Key Laboratory of Tree Breeding of Zhejiang Province, Research Institute of Subtropical Forestry, Chinese Academy of Forestry, Hangzhou 311400, China
| | - Wanchuan Ge
- Key Laboratory of Tree Breeding of Zhejiang Province, Research Institute of Subtropical Forestry, Chinese Academy of Forestry, Hangzhou 311400, China
| | - Weixin Liu
- Key Laboratory of Tree Breeding of Zhejiang Province, Research Institute of Subtropical Forestry, Chinese Academy of Forestry, Hangzhou 311400, China
- Correspondence:
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15
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Bai Y, Jiang L, Li Z, Liu S, Hu X, Gao F. Flavonoid Metabolism in Tetrastigma hemsleyanum Diels et Gilg Based on Metabolome Analysis and Transcriptome Sequencing. MOLECULES (BASEL, SWITZERLAND) 2022; 28:molecules28010083. [PMID: 36615276 PMCID: PMC9821845 DOI: 10.3390/molecules28010083] [Citation(s) in RCA: 3] [Impact Index Per Article: 1.5] [Reference Citation Analysis] [Abstract] [Key Words] [MESH Headings] [Track Full Text] [Figures] [Subscribe] [Scholar Register] [Received: 10/27/2022] [Revised: 12/13/2022] [Accepted: 12/14/2022] [Indexed: 12/24/2022]
Abstract
Tetrastigma hemsleyanum Diels et Gilg, known as a "plant antibiotic", possesses several attractive properties including anti-inflammatory, anti-tumor, and antioxidant effects, with its efficacy being attributed to flavonoids. However, the flavonoid biosynthesis of T. hemsleyanum has rarely been studied. In this study, we investigated the flavonoid metabolism of T. hemsleyanum through metabolome analysis and transcriptome sequencing. The metabolomic results showed differences in the flavonoids of the leaves and root tubers of T. hemsleyanum. A total of 22 flavonoids was detected, and the concentrations of most flavonoids in the leaves were higher than those in the root tubers. Transcriptome analysis revealed that differentially expressed genes (DEGs) in the leaves and root tubers were enriched in photosynthesis-antenna proteins. Pearson correlation analysis indicated that the expression levels of chalcone isomerase (CHI) and UDP-glycose flavonoid glycosyltransferase (UFGT) were highly correlated with the concentrations of most flavonoids. Further, this study found that the photosynthesis-antenna proteins essentially contributed to the difference in the flavonoids in T. hemsleyanum. The gene expressions and concentrations of the total flavonoids of leaves and root tubers in Hangzhou, Jinhua, Lishui, and Taizhou in Zhejiang Province, China, showed that CHI (CL6715.Contig1_All, Unigene19431_All, CL921.Contig4_All) and UFGT (CL11556.Contig3_All, CL11775.Contig1_All) were the potential key genes of accumulation of most flavonoids in T. hemsleyanum.
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Affiliation(s)
- Yan Bai
- Zhejiang Provincial Key Laboratory of Resources Protection and Innovation of Traditional Chinese Medicine, Hangzhou 311300, China
- College of Food and Health, Department of Traditional Chinese medicine, Zhejiang Agriculture & Forestry University, Hangzhou 311300, China
- State Key Laboratory of Subtropical Silviculture, Zhejiang Agriculture and Forestry University, Hangzhou 311300, China
- Correspondence: (Y.B.); (F.G.)
| | - Lingtai Jiang
- Zhejiang Provincial Key Laboratory of Resources Protection and Innovation of Traditional Chinese Medicine, Hangzhou 311300, China
- College of Food and Health, Department of Traditional Chinese medicine, Zhejiang Agriculture & Forestry University, Hangzhou 311300, China
- State Key Laboratory of Subtropical Silviculture, Zhejiang Agriculture and Forestry University, Hangzhou 311300, China
| | - Zhe Li
- Zhejiang Provincial Key Laboratory of Resources Protection and Innovation of Traditional Chinese Medicine, Hangzhou 311300, China
- College of Food and Health, Department of Traditional Chinese medicine, Zhejiang Agriculture & Forestry University, Hangzhou 311300, China
- State Key Laboratory of Subtropical Silviculture, Zhejiang Agriculture and Forestry University, Hangzhou 311300, China
| | - Shouzan Liu
- State Key Laboratory of Subtropical Silviculture, Zhejiang Agriculture and Forestry University, Hangzhou 311300, China
- Botanical Garden, Zhejiang Agricultural and Forestry University, Hangzhou 311300, China
| | - Xiaotian Hu
- Zhejiang Provincial Key Laboratory of Resources Protection and Innovation of Traditional Chinese Medicine, Hangzhou 311300, China
- College of Food and Health, Department of Traditional Chinese medicine, Zhejiang Agriculture & Forestry University, Hangzhou 311300, China
- State Key Laboratory of Subtropical Silviculture, Zhejiang Agriculture and Forestry University, Hangzhou 311300, China
| | - Fei Gao
- Zhejiang Provincial Key Laboratory of Resources Protection and Innovation of Traditional Chinese Medicine, Hangzhou 311300, China
- College of Food and Health, Department of Traditional Chinese medicine, Zhejiang Agriculture & Forestry University, Hangzhou 311300, China
- State Key Laboratory of Subtropical Silviculture, Zhejiang Agriculture and Forestry University, Hangzhou 311300, China
- Correspondence: (Y.B.); (F.G.)
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16
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Zhang D, Wang S, Lin L, Zhang J, Cui M, Wang S, Zhao X, Dong J, Long Y, Xing Z. Integrative Analysis of Metabolome and Transcriptome Reveals the Mechanism of Flavonoid Biosynthesis in Lithocarpus polystachyus Rehd. ACS OMEGA 2022; 7:19437-19453. [PMID: 35722012 PMCID: PMC9202069 DOI: 10.1021/acsomega.2c01125] [Citation(s) in RCA: 1] [Impact Index Per Article: 0.5] [Reference Citation Analysis] [Abstract] [Grants] [Track Full Text] [Subscribe] [Scholar Register] [Received: 02/24/2022] [Accepted: 05/23/2022] [Indexed: 05/28/2023]
Abstract
Lithocarpus polystachyus Rehd has received great attention because of its pharmacological activities, such as inhibiting oxidation and lowering blood glucose and blood pressure, and flavonoids are one of its main pharmacodynamic components. It is important to understand the mechanisms of the flavonoid biosynthetic pathway of L. polystachyus, but the regulation of flavonoid biosynthesis is still unclear. In this study, differentially expressed genes and differentially accumulated metabolites in L. polystachyus were studied by integrating transcriptomics and metabolomics technologies. We confirmed the key genes involved in the flavonoid biosynthesis of L. polystachyus, including LpPAL3, LpCHS1, LpCHS2, LpCHI2, and LpF3H, which had consistent expression patterns with their upstream and downstream metabolites, and there is a significantly positive correlation between them. Compared to mature leaves, stems and young leaves are higher in the expression levels of key structural genes. We deduced that the MYB and bHLH transcription factors regulated the biosynthesis of different flavonoid metabolites and their regulatory patterns. Among them, LpMYB2, LpMYB20, LpMYB54, LpMYB12, and LpWD40-113 positively regulated the biosynthesis of flavones and flavanones. This discovery preliminarily revealed the pathways and key genes of flavonoid biosynthesis in L. polystachyus, which provided a reference for further study on flavonoid biosynthesis.
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Affiliation(s)
- Duoduo Zhang
- College
of Life Sciences, North China University
of Science and Technology, Tangshan 063210, China
| | - Shuqing Wang
- Hospital
of North China University of Science and Technology, Tangshan 063210, China
| | - Limei Lin
- College
of Life Sciences, North China University
of Science and Technology, Tangshan 063210, China
| | - Jie Zhang
- College
of Life Sciences, North China University
of Science and Technology, Tangshan 063210, China
| | - Minghui Cui
- College
of Life Sciences, North China University
of Science and Technology, Tangshan 063210, China
| | - Shuo Wang
- College
of Life Sciences, North China University
of Science and Technology, Tangshan 063210, China
| | - Xuelei Zhao
- College
of Life Sciences, North China University
of Science and Technology, Tangshan 063210, China
| | - Jing Dong
- College
of Life Sciences, North China University
of Science and Technology, Tangshan 063210, China
| | - Yuehong Long
- College
of Life Sciences, North China University
of Science and Technology, Tangshan 063210, China
| | - Zhaobin Xing
- College
of Life Sciences, North China University
of Science and Technology, Tangshan 063210, China
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Martín JF, Liras P. Comparative Molecular Mechanisms of Biosynthesis of Naringenin and Related Chalcones in Actinobacteria and Plants: Relevance for the Obtention of Potent Bioactive Metabolites. Antibiotics (Basel) 2022; 11:antibiotics11010082. [PMID: 35052959 PMCID: PMC8773403 DOI: 10.3390/antibiotics11010082] [Citation(s) in RCA: 1] [Impact Index Per Article: 0.5] [Reference Citation Analysis] [Abstract] [Key Words] [Track Full Text] [Download PDF] [Figures] [Journal Information] [Subscribe] [Scholar Register] [Received: 11/26/2021] [Revised: 01/01/2022] [Accepted: 01/07/2022] [Indexed: 02/04/2023] Open
Abstract
Naringenin and its glycosylated derivative naringin are flavonoids that are synthesized by the phenylpropanoid pathway in plants. We found that naringenin is also formed by the actinobacterium Streptomyces clavuligerus, a well-known microorganism used to industrially produce clavulanic acid. The production of naringenin in S. clavuligerus involves a chalcone synthase that uses p-coumaric as a starter unit and a P450 monoxygenase, encoded by two adjacent genes (ncs-ncyP). The p-coumaric acid starter unit is formed by a tyrosine ammonia lyase encoded by an unlinked, tal, gene. Deletion and complementation studies demonstrate that these three genes are required for biosynthesis of naringenin in S. clavuligerus. Other actinobacteria chalcone synthases use caffeic acid, ferulic acid, sinapic acid or benzoic acid as starter units in the formation of different antibiotics and antitumor agents. The biosynthesis of naringenin is restricted to a few Streptomycess species and the encoding gene cluster is present also in some Saccharotrix and Kitasatospora species. Phylogenetic comparison of S. clavuligerus naringenin chalcone synthase with homologous proteins of other actinobacteria reveal that this protein is closely related to chalcone synthases that use malonyl-CoA as a starter unit for the formation of red-brown pigment. The function of the core enzymes in the pathway, such as the chalcone synthase and the tyrosine ammonia lyase, is conserved in plants and actinobacteria. However, S. clavuligerus use a P450 monooxygenase proposed to complete the cyclization step of the naringenin chalcone, whereas this reaction in plants is performed by a chalcone isomerase. Comparison of the plant and S. clavuligerus chalcone synthases indicates that they have not been transmitted between these organisms by a recent horizontal gene transfer phenomenon. We provide a comprehensive view of the molecular genetics and biochemistry of chalcone synthases and their impact on the development of antibacterial and antitumor compounds. These advances allow new bioactive compounds to be obtained using combinatorial strategies. In addition, processes of heterologous expression and bioconversion for the production of naringenin and naringenin-derived compounds in yeasts are described.
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Osorio-Guarín JA, Gopaulchan D, Quanckenbush C, Lennon AM, Umaharan P, Cornejo OE. Comparative transcriptomic analysis reveals key components controlling spathe color in Anthurium andraeanum (Hort.). PLoS One 2021; 16:e0261364. [PMID: 34890418 PMCID: PMC8664202 DOI: 10.1371/journal.pone.0261364] [Citation(s) in RCA: 3] [Impact Index Per Article: 1.0] [Reference Citation Analysis] [Abstract] [MESH Headings] [Grants] [Track Full Text] [Download PDF] [Figures] [Journal Information] [Subscribe] [Scholar Register] [Received: 05/13/2021] [Accepted: 11/30/2021] [Indexed: 11/18/2022] Open
Abstract
Anthurium andraeanum (Hort.) is an important ornamental in the tropical cut-flower industry. However, there is currently insufficient information to establish a clear connection between the genetic model(s) proposed and the putative genes involved in the differentiation between colors. In this study, 18 cDNA libraries related to the spathe color and developmental stages of A. andraeanum were characterized by transcriptome sequencing (RNA-seq). For the de novo transcriptome, a total of 114,334,082 primary sequence reads were obtained from the Illumina sequencer and were assembled into 151,652 unigenes. Approximately 58,476 transcripts were generated and used for comparative transcriptome analysis between three cultivars that differ in spathe color (‘Sasha’ (white), ‘Honduras’ (red), and ‘Rapido’ (purple)). A large number of differentially expressed genes (8,324), potentially involved in multiple biological and metabolic pathways, were identified, including genes in the flavonoid and anthocyanin biosynthetic pathways. Our results showed that the chalcone isomerase (CHI) gene presented the strongest evidence for an association with differences in color and the highest correlation with other key genes (flavanone 3-hydroxylase (F3H), flavonoid 3’5’ hydroxylase (F3’5’H)/ flavonoid 3’-hydroxylase (F3’H), and leucoanthocyanidin dioxygenase (LDOX)) in the anthocyanin pathway. We also identified a differentially expressed cytochrome P450 gene in the late developmental stage of the purple spathe that appeared to determine the difference between the red- and purple-colored spathes. Furthermore, transcription factors related to putative MYB-domain protein that may control anthocyanin pathway were identified through a weighted gene co-expression network analysis (WGCNA). The results provided basic sequence information for future research on spathe color, which have important implications for this ornamental breeding strategies.
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Affiliation(s)
- Jaime A. Osorio-Guarín
- Centro de Investigación Tibaitatá, Corporación Colombiana de Investigación Agropecuaria–Agrosavia, Mosquera, Cundinamarca, Colombia
| | - David Gopaulchan
- Faculty of Science and Technology, Department of Life Sciences, The University of the West Indies, St. Augustine, Republic of Trinidad and Tobago
| | - Corey Quanckenbush
- Division of Molecular and Translational Sciences, U. S. Army Medical Research Institute of Infectious Diseases (USAMRIID), Fort Detrick, MD, United States of America
| | - Adrian M. Lennon
- Faculty of Science and Technology, Department of Life Sciences, The University of the West Indies, St. Augustine, Republic of Trinidad and Tobago
| | - Pathmanathan Umaharan
- Faculty of Science and Technology, Department of Life Sciences, The University of the West Indies, St. Augustine, Republic of Trinidad and Tobago
| | - Omar E. Cornejo
- School of Biological Sciences, Washington State University, Pullman, Washington, United States of America
- * E-mail:
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Sun W, Zhou N, Wang Y, Sun S, Zhang Y, Ju Z, Yi Y. Characterization and functional analysis of RdDFR1 regulation on flower color formation in Rhododendron delavayi. PLANT PHYSIOLOGY AND BIOCHEMISTRY : PPB 2021; 169:203-210. [PMID: 34801974 DOI: 10.1016/j.plaphy.2021.11.016] [Citation(s) in RCA: 3] [Impact Index Per Article: 1.0] [Reference Citation Analysis] [Abstract] [Key Words] [MESH Headings] [Track Full Text] [Subscribe] [Scholar Register] [Received: 08/28/2021] [Revised: 11/07/2021] [Accepted: 11/11/2021] [Indexed: 06/13/2023]
Abstract
Rhododendron delavayi is a popular ornamental plant with globular flowers noted for their bright red color, but very limited studies have been reported on its flower color formation. In this study, we successfully isolated a novel DFR gene (RdDFR1) from red flowers of Rhododendron delavayi. Multiple sequence alignments revealed that RdDFR1 had the conserved NADP and substrate binding domain, and was classified into Asn-type DFR. Meanwhile, quantitative real-time PCR analysis showed that transcript levels of RdDFR1 matched the accumulation patterns of anthocyanins during flower development, hinting its potential role involved in anthocyanin biosynthesis. Then in vitro enzymatic analysis indicated that recombinant RdDFR1 protein could catalyze the production of leucoanthocyanidins from dihydroquercetin and dihydromyricetin. Furthermore, the in planta assay, using Arabidopsis thaliana dfr mutant (tt3-1) and tobacco, displayed that RdDFR1 transgenes recovered the defective proanthocyanidin and anthocyanin biosynthesis at seed coats, hypocotyl as well as cotyledon, and altered the flowers color of tobacco from pale pink to dark pink which demonstrated its function as dihydroflavonol 4-reductase in vivo. In summary, our findings suggest that RdDFR1 plays a crucial role in the biosynthesis of anthocyanin and will also make a contribution to understand the mechanisms of flower color formation in Rhododendron delavayi.
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Affiliation(s)
- Wei Sun
- Key Laboratory of State Forestry Administration on Biodiversity Conservation in Karst Mountain Area of Southwest of China, School of Life Science, Guizhou Normal University, Guiyang, China
| | - Nana Zhou
- Key Laboratory of State Forestry Administration on Biodiversity Conservation in Karst Mountain Area of Southwest of China, School of Life Science, Guizhou Normal University, Guiyang, China
| | - Yuhan Wang
- Key Laboratory of State Forestry Administration on Biodiversity Conservation in Karst Mountain Area of Southwest of China, School of Life Science, Guizhou Normal University, Guiyang, China
| | - Shiyu Sun
- Key Laboratory of State Forestry Administration on Biodiversity Conservation in Karst Mountain Area of Southwest of China, School of Life Science, Guizhou Normal University, Guiyang, China
| | - Yan Zhang
- Key Laboratory of State Forestry Administration on Biodiversity Conservation in Karst Mountain Area of Southwest of China, School of Life Science, Guizhou Normal University, Guiyang, China
| | - Zhigang Ju
- Pharmacy College, Guizhou University of Traditional Chinese Medicine, Guiyang, China.
| | - Yin Yi
- Key Laboratory of State Forestry Administration on Biodiversity Conservation in Karst Mountain Area of Southwest of China, School of Life Science, Guizhou Normal University, Guiyang, China; Key Laboratory of Plant Physiology and Development Regulation, School of Life Science, Guizhou Normal University, Guiyang, China
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Sun W, Zhou N, Feng C, Sun S, Tang M, Tang X, Ju Z, Yi Y. Functional analysis of a dihydroflavonol 4-reductase gene in Ophiorrhiza japonica (OjDFR1) reveals its role in the regulation of anthocyanin. PeerJ 2021; 9:e12323. [PMID: 34721993 PMCID: PMC8541326 DOI: 10.7717/peerj.12323] [Citation(s) in RCA: 3] [Impact Index Per Article: 1.0] [Reference Citation Analysis] [Abstract] [Key Words] [Track Full Text] [Download PDF] [Figures] [Journal Information] [Subscribe] [Scholar Register] [Received: 07/29/2021] [Accepted: 09/26/2021] [Indexed: 12/29/2022] Open
Abstract
Dihydroflavonol 4-reductase (DFR), a key regulatory enzyme, participated in the biosynthesis of anthocyanins, proanthocyanidins and other flavonoids that essential for plant survival and human health. However, the role of this enzyme in Ophiorrhiza japonica is still unknown. Here, three putative DFR-like genes were firstly isolated from O. japonica. Phylogenetic analysis indicated that OjDFR1 was classified into DFR subgroup, while the rest two were clustered into other NADPH-dependent reductases. Then, functions of the three genes were further characterized. Expression analysis showed that OjDFR1 transcripts had strong correlations with the accumulation pattern of anthocyanin during the flower developmental, whereas other two were not, this suggested the potential roles of OjDFR1 in anthocyanin biosynthesis. Subsequently, all three clones were functionally expressed in Escherichia coli, but confirming that only OjDFR1 encode active DFR proteins that catalyzed the reduction of dihydroflavonols to leucoanthocyanidin. Consistant with the biochemical assay results, overexpressing OjDFR1 in Arabidopsis tt3-1 mutant successfully restored the deficiency of anthocyanin and proanthocyanidin, hinting its function as DFR in planta. Additionally, heterologous expression of OjDFR1 in transgenic tobacco contributed to darker flower color via up-regulating the expressions of endogenous NtANS and NtUFGT, which suggested that OjDFR1 was involved in flower color development. In summary, this study validates the functions of OjDFR1 and expands our understanding of anthocyanin biosynthesis in O. japonica.
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Affiliation(s)
- Wei Sun
- Key Laboratory of State Forestry Administration on Biodiversity Conservation in Karst Mountain Area of Southwest of China, School of Life Science, Guizhou Normal University, Guiyang, China
| | - Nana Zhou
- Key Laboratory of State Forestry Administration on Biodiversity Conservation in Karst Mountain Area of Southwest of China, School of Life Science, Guizhou Normal University, Guiyang, China
| | - Cai Feng
- Key Laboratory of State Forestry Administration on Biodiversity Conservation in Karst Mountain Area of Southwest of China, School of Life Science, Guizhou Normal University, Guiyang, China
| | - Shiyu Sun
- Key Laboratory of State Forestry Administration on Biodiversity Conservation in Karst Mountain Area of Southwest of China, School of Life Science, Guizhou Normal University, Guiyang, China
| | - Ming Tang
- Key Laboratory of State Forestry Administration on Biodiversity Conservation in Karst Mountain Area of Southwest of China, School of Life Science, Guizhou Normal University, Guiyang, China
| | - Xiaoxin Tang
- Key Laboratory of State Forestry Administration on Biodiversity Conservation in Karst Mountain Area of Southwest of China, School of Life Science, Guizhou Normal University, Guiyang, China
| | - Zhigang Ju
- Pharmacy College, Guizhou University of Traditional Chinese Medicine, Guiyang, China
| | - Yin Yi
- Key Laboratory of State Forestry Administration on Biodiversity Conservation in Karst Mountain Area of Southwest of China, School of Life Science, Guizhou Normal University, Guiyang, China.,Key Laboratory of Plant Physiology and Development Regulation, School of Life Science, Guizhou Normal University, Guiyang, China
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21
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Negi S, Madari S, Tak H, Bhakta S, Ganapathi TR. Studies on the tissue specific nature and stress inducible activation of the CHI-1 gene from banana. PLANT PHYSIOLOGY AND BIOCHEMISTRY : PPB 2021; 168:62-69. [PMID: 34619599 DOI: 10.1016/j.plaphy.2021.10.005] [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: 07/16/2021] [Revised: 09/30/2021] [Accepted: 10/01/2021] [Indexed: 06/13/2023]
Abstract
In the present study, the 5'-regulatory region of chalcone isomerase gene (MusaCHI-1) of banana was functionally analysed for its tissue specific, stress mediated and strong guard cell preferred activity. Expression of MusaCHI-1 was altered in leaves of banana plants exposed to various stress conditions and signalling molecules. Transgenic lines of tobacco harbouring PMusaCHI-1-GUS displays prominent GUS staining in vascular region and guard cells of leaves which corroborates with array of Dof1 binding cis-elements in PMusaCHI-1 region. Multiple cis-elements associated with various stress conditions were detected in PMusaCHI-1 which directly correlates with alteration of MusaCHI-1 transcript level in banana exposed to stress conditions. GUS staining of transgenic tobacco plants harbouring PMusaCHI-1-GUS and exposed to drought, salinity, and applications of methyl jasmonate and abscisic acid indicated activation of PMusaCHI-1 under these conditions while exposure of salicylic acid strongly suppresses GUS expression from PMusaCHI-1.
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Affiliation(s)
- Sanjana Negi
- Department of Biotechnology, University of Mumbai, Mumbai, 400098, India
| | - Steffi Madari
- Department of Biotechnology, University of Mumbai, Mumbai, 400098, India
| | - Himanshu Tak
- Plant Cell Culture Technology Section, Nuclear Agriculture and Biotechnology Division, Bhabha Atomic Research Centre, Trombay, Mumbai, 400085, India; Homi Bhabha National Institute, Anushakti Nagar, Mumbai, 400094, India.
| | - Subham Bhakta
- Plant Cell Culture Technology Section, Nuclear Agriculture and Biotechnology Division, Bhabha Atomic Research Centre, Trombay, Mumbai, 400085, India
| | - T R Ganapathi
- Plant Cell Culture Technology Section, Nuclear Agriculture and Biotechnology Division, Bhabha Atomic Research Centre, Trombay, Mumbai, 400085, India; Homi Bhabha National Institute, Anushakti Nagar, Mumbai, 400094, India
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22
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Gao X, Wang L, Zhang H, Zhu B, Lv G, Xiao J. Transcriptome analysis and identification of genes associated with floral transition and fruit development in rabbiteye blueberry (Vaccinium ashei). PLoS One 2021; 16:e0259119. [PMID: 34710165 PMCID: PMC8553168 DOI: 10.1371/journal.pone.0259119] [Citation(s) in RCA: 5] [Impact Index Per Article: 1.7] [Reference Citation Analysis] [Abstract] [MESH Headings] [Grants] [Track Full Text] [Download PDF] [Figures] [Journal Information] [Subscribe] [Scholar Register] [Received: 06/07/2021] [Accepted: 10/12/2021] [Indexed: 11/30/2022] Open
Abstract
Flowering and fruit set are important traits affecting fruit quality and yield in rabbiteye blueberry (Vaccinium ashei). Intense efforts have been made to elucidate the influence of vernalization and phytohormones on flowering, but the molecular mechanisms of flowering and fruit set remain unclear. To unravel these mechanisms, we performed transcriptome analysis to explore blueberry transcripts from flowering to early fruit stage. We divided flowering and fruit set into flower bud (S2), initial flower (S3), bloom flower (S4), pad fruit (S5), and cup fruit (S6) based on phenotype and identified 1,344, 69, 658, and 189 unique differentially expressed genes (DEGs) in comparisons of S3/S2, S4/S3, S5/S4, and S6/S5, respectively. There were obviously more DEGs in S3/S2 and S5/S4 than in S4/S3, and S6/S5, suggesting that S3/S2 and S5/S4 represent major transitions from buds to fruit in blueberry. GO and KEGG enrichment analysis indicated these DEGs were mostly enriched in phytohormone biosynthesis and signaling, transporter proteins, photosynthesis, anthocyanins biosynthesis, disease resistance protein and transcription factor categories, in addition, transcript levels of phytohormones and transporters changed greatly throughout the flowering and fruit set process. Gibberellic acid and jasmonic acid mainly acted on the early stage of flowering development like expression of the florigen gene FT, while the expression of auxin response factor genes increased almost throughout the process from bud to fruit development. Transporter proteins were mainly associated with minerals during the early flowering development stage and sugars during the early fruit stage. At the early fruit stage, anthocyanins started to accumulate, and the fruit was susceptible to diseases such as fungal infection. Expression of the transcription factor MYB86 was up-regulated during initial fruit development, which may promote anthocyanin accumulation. These results will aid future studies exploring the molecular mechanism underlying flowering and fruit set of rabbiteye blueberry.
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Affiliation(s)
- Xuan Gao
- Anhui Provincial Key Laboratory of Molecular Enzymology and Mechanism of Major Diseases and Key Laboratory of Biomedicine in Gene Diseases and Health of Anhui Higher Education Institutes, Anhui Normal University, Wuhu, Anhui, China
| | - Lida Wang
- Anhui Provincial Key Laboratory of Molecular Enzymology and Mechanism of Major Diseases and Key Laboratory of Biomedicine in Gene Diseases and Health of Anhui Higher Education Institutes, Anhui Normal University, Wuhu, Anhui, China
| | - Hong Zhang
- Anhui Provincial Key Laboratory of Molecular Enzymology and Mechanism of Major Diseases and Key Laboratory of Biomedicine in Gene Diseases and Health of Anhui Higher Education Institutes, Anhui Normal University, Wuhu, Anhui, China
- Anhui Microanaly Gene Limited Liability Company, Hefei, Anhui, China
| | - Bo Zhu
- Anhui Provincial Key Laboratory of Molecular Enzymology and Mechanism of Major Diseases and Key Laboratory of Biomedicine in Gene Diseases and Health of Anhui Higher Education Institutes, Anhui Normal University, Wuhu, Anhui, China
| | - Guosheng Lv
- Anhui Provincial Key Laboratory of Molecular Enzymology and Mechanism of Major Diseases and Key Laboratory of Biomedicine in Gene Diseases and Health of Anhui Higher Education Institutes, Anhui Normal University, Wuhu, Anhui, China
| | - Jiaxin Xiao
- Anhui Provincial Key Laboratory of Molecular Enzymology and Mechanism of Major Diseases and Key Laboratory of Biomedicine in Gene Diseases and Health of Anhui Higher Education Institutes, Anhui Normal University, Wuhu, Anhui, China
- * E-mail:
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Chakraborty A, Mahajan S, Jaiswal SK, Sharma VK. Genome sequencing of turmeric provides evolutionary insights into its medicinal properties. Commun Biol 2021; 4:1193. [PMID: 34654884 PMCID: PMC8521574 DOI: 10.1038/s42003-021-02720-y] [Citation(s) in RCA: 19] [Impact Index Per Article: 6.3] [Reference Citation Analysis] [Abstract] [Key Words] [MESH Headings] [Track Full Text] [Download PDF] [Figures] [Journal Information] [Subscribe] [Scholar Register] [Received: 09/29/2020] [Accepted: 08/13/2021] [Indexed: 12/28/2022] Open
Abstract
Curcuma longa, or turmeric, is traditionally known for its immense medicinal properties and has diverse therapeutic applications. However, the absence of a reference genome sequence is a limiting factor in understanding the genomic basis of the origin of its medicinal properties. In this study, we present the draft genome sequence of C. longa, belonging to Zingiberaceae plant family, constructed using 10x Genomics linked reads and Oxford Nanopore long reads. For comprehensive gene set prediction and for insights into its gene expression, transcriptome sequencing of leaf tissue was also performed. The draft genome assembly had a size of 1.02 Gbp with ~70% repetitive sequences, and contained 50,401 coding gene sequences. The phylogenetic position of C. longa was resolved through a comprehensive genome-wide analysis including 16 other plant species. Using 5,388 orthogroups, the comparative evolutionary analysis performed across 17 species including C. longa revealed evolution in genes associated with secondary metabolism, plant phytohormones signaling, and various biotic and abiotic stress tolerance responses. These mechanisms are crucial for perennial and rhizomatous plants such as C. longa for defense and environmental stress tolerance via production of secondary metabolites, which are associated with the wide range of medicinal properties in C. longa.
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Affiliation(s)
- Abhisek Chakraborty
- MetaBioSys Group, Department of Biological Sciences, Indian Institute of Science Education and Research Bhopal, Bhopal, India
| | - Shruti Mahajan
- MetaBioSys Group, Department of Biological Sciences, Indian Institute of Science Education and Research Bhopal, Bhopal, India
| | - Shubham K Jaiswal
- MetaBioSys Group, Department of Biological Sciences, Indian Institute of Science Education and Research Bhopal, Bhopal, India
| | - Vineet K Sharma
- MetaBioSys Group, Department of Biological Sciences, Indian Institute of Science Education and Research Bhopal, Bhopal, India.
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Kang JN, Lee WH, Won SY, Chang S, Hong JP, Oh TJ, Lee SM, Kang SH. Systemic Expression of Genes Involved in the Plant Defense Response Induced by Wounding in Senna tora. Int J Mol Sci 2021; 22:ijms221810073. [PMID: 34576236 PMCID: PMC8469979 DOI: 10.3390/ijms221810073] [Citation(s) in RCA: 8] [Impact Index Per Article: 2.7] [Reference Citation Analysis] [Abstract] [Key Words] [MESH Headings] [Track Full Text] [Download PDF] [Figures] [Journal Information] [Subscribe] [Scholar Register] [Received: 08/13/2021] [Revised: 09/14/2021] [Accepted: 09/15/2021] [Indexed: 02/05/2023] Open
Abstract
Wounds in tissues provide a pathway of entry for pathogenic fungi and bacteria in plants. Plants respond to wounding by regulating the expression of genes involved in their defense mechanisms. To analyze this response, we investigated the defense-related genes induced by wounding in the leaves of Senna tora using RNA sequencing. The genes involved in jasmonate and ethylene biosynthesis were strongly induced by wounding, as were a large number of genes encoding transcription factors such as ERFs, WRKYs, MYBs, bHLHs, and NACs. Wounding induced the expression of genes encoding pathogenesis-related (PR) proteins, such as PR-1, chitinase, thaumatin-like protein, cysteine proteinase inhibitor, PR-10, and plant defensin. Furthermore, wounding led to the induction of genes involved in flavonoid biosynthesis and the accumulation of kaempferol and quercetin in S. tora leaves. All these genes were expressed systemically in leaves distant from the wound site. These results demonstrate that mechanical wounding can lead to a systemic defense response in the Caesalpinioideae, a subfamily of the Leguminosae. In addition, a co-expression analysis of genes induced by wounding provides important information about the interactions between genes involved in plant defense responses.
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Affiliation(s)
- Ji-Nam Kang
- Genomics Division, National Institute of Agricultural Sciences, Rural Development Administration, Jeonju 54874, Korea; (J.-N.K.); (S.Y.W.); (S.C.); (J.-P.H.)
| | - Woo-Haeng Lee
- Department of Life Science and Biochemical Engineering, Sun Moon University, Asan 31460, Korea; (W.-H.L.); (T.-J.O.)
| | - So Youn Won
- Genomics Division, National Institute of Agricultural Sciences, Rural Development Administration, Jeonju 54874, Korea; (J.-N.K.); (S.Y.W.); (S.C.); (J.-P.H.)
| | - Saemin Chang
- Genomics Division, National Institute of Agricultural Sciences, Rural Development Administration, Jeonju 54874, Korea; (J.-N.K.); (S.Y.W.); (S.C.); (J.-P.H.)
| | - Jong-Pil Hong
- Genomics Division, National Institute of Agricultural Sciences, Rural Development Administration, Jeonju 54874, Korea; (J.-N.K.); (S.Y.W.); (S.C.); (J.-P.H.)
| | - Tae-Jin Oh
- Department of Life Science and Biochemical Engineering, Sun Moon University, Asan 31460, Korea; (W.-H.L.); (T.-J.O.)
| | - Si Myung Lee
- Genomics Division, National Institute of Agricultural Sciences, Rural Development Administration, Jeonju 54874, Korea; (J.-N.K.); (S.Y.W.); (S.C.); (J.-P.H.)
- Correspondence: (S.M.L.); (S.-H.K.)
| | - Sang-Ho Kang
- Genomics Division, National Institute of Agricultural Sciences, Rural Development Administration, Jeonju 54874, Korea; (J.-N.K.); (S.Y.W.); (S.C.); (J.-P.H.)
- Correspondence: (S.M.L.); (S.-H.K.)
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25
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Chao N, Wang RF, Hou C, Yu T, Miao K, Cao FY, Fang RJ, Liu L. Functional characterization of two chalcone isomerase (CHI) revealing their responsibility for anthocyanins accumulation in mulberry. PLANT PHYSIOLOGY AND BIOCHEMISTRY : PPB 2021; 161:65-73. [PMID: 33578286 DOI: 10.1016/j.plaphy.2021.01.044] [Citation(s) in RCA: 18] [Impact Index Per Article: 6.0] [Reference Citation Analysis] [Abstract] [Key Words] [MESH Headings] [Track Full Text] [Subscribe] [Scholar Register] [Received: 11/11/2020] [Accepted: 01/27/2021] [Indexed: 06/12/2023]
Abstract
Mulberry (Morus sp., Moraceae) is an important economic crop plant and mulberry fruits are rich in anthocyanidins. Chalcone isomerase (CHI) catalyzes the conversion of chalcones to flavanones providing precursors for biosynthesis of anthocyanidins. In this study, bona fide CHIs were cloned and characterized from different Morus species with differently colored fruits (Morus multicaulis, Mm and Morus alba variety LvShenZi, LSZ). Enzymatic assay of MmCHI1 and MmCHI2 showed that they can utilize naringenin chalcone as substrate. The catalytic efficiency of MmCHI2 and LSZCHI2 are approximately 200 and 120-fold greater than that of MmCHI1 respectively. Phylogenetic analysis showed the two mulberry CHIs belonged to different sub-clade of Type I CHI1 named type IA (CHI2) and type IB (CHI1). Type IB CHIs are mulberry specific. MmCHI1 and MmCHI2 had similar expression profiles and showed preferred expression in fruits. In addition, both mulberry CHI1 and CHI2 played roles in the response to excess zinc stress and sclerotiniose pathogen infection. Both MmCHI1 and MmCHI2 expression levels showed positive close relationship with anthocyanins content during fruit ripening process. The co-expression of MmCHI1 and MmCHI2 was observed during fruit ripening process and in transgenic mulberry. VIGS (virus induced gene silence) targeting on MmCHI1 and MmCHI2 showed significant down-regulation of MmCHI2 instead of MmCHI1 would result in significant (about 50%) decrease in anthocyanins content. MmCHI2 is the dominant CHI for anthocyanins accumulation in mulberry. The results presented in this work provided insight on bona fide CHIs in mulberry and reveal their roles in anthocyanins accumulation.
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Affiliation(s)
- Nan Chao
- College of Biotechnology, Jiangsu University of Science and Technology, Zhenjiang, Jiangsu, 212018, China; Sericultural Research Institute, Chinese Academy of Agricultural Sciences, Zhenjiang, Jiangsu, 212018, China
| | - Ru-Feng Wang
- College of Biotechnology, Jiangsu University of Science and Technology, Zhenjiang, Jiangsu, 212018, China
| | - Chong Hou
- College of Biotechnology, Jiangsu University of Science and Technology, Zhenjiang, Jiangsu, 212018, China
| | - Ting Yu
- College of Biotechnology, Jiangsu University of Science and Technology, Zhenjiang, Jiangsu, 212018, China
| | - Ke Miao
- College of Biotechnology, Jiangsu University of Science and Technology, Zhenjiang, Jiangsu, 212018, China
| | - Fang-Yuan Cao
- College of Biotechnology, Jiangsu University of Science and Technology, Zhenjiang, Jiangsu, 212018, China
| | - Rong-Jun Fang
- College of Biotechnology, Jiangsu University of Science and Technology, Zhenjiang, Jiangsu, 212018, China; Sericultural Research Institute, Chinese Academy of Agricultural Sciences, Zhenjiang, Jiangsu, 212018, China
| | - Li Liu
- College of Biotechnology, Jiangsu University of Science and Technology, Zhenjiang, Jiangsu, 212018, China; Sericultural Research Institute, Chinese Academy of Agricultural Sciences, Zhenjiang, Jiangsu, 212018, China.
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26
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Zhu J, Zhao W, Li R, Guo D, Li H, Wang Y, Mei W, Peng S. Identification and Characterization of Chalcone Isomerase Genes Involved in Flavonoid Production in Dracaena cambodiana. FRONTIERS IN PLANT SCIENCE 2021; 12:616396. [PMID: 33719287 PMCID: PMC7947852 DOI: 10.3389/fpls.2021.616396] [Citation(s) in RCA: 16] [Impact Index Per Article: 5.3] [Reference Citation Analysis] [Abstract] [Key Words] [Track Full Text] [Subscribe] [Scholar Register] [Received: 10/12/2020] [Accepted: 01/29/2021] [Indexed: 05/20/2023]
Abstract
Dragon's blood is a traditional medicine in which flavonoids are the main bioactive compounds; however, the underlying formation mechanism of dragon's blood remains largely poorly understood. Chalcone isomerase (CHI) is the key enzyme in the flavonoid biosynthesis pathway. However, CHI family genes are not well understood in Dracaena cambodiana Pierre ex Gagnep, an important source plant of dragon's blood. In this study, 11 CHI family genes were identified from D. cambodiana, and they were classified into three types. Evolutionary and transcriptional profiling analysis revealed that DcCHI1 and DcCHI4 might be involved in flavonoid production. Both DcCHI1 and DcCHI4 displayed low expression levels in stem under normal growth conditions and were induced by methyl jasmonate (MeJA), 6-benzyl aminopurine (6-BA, synthetic cytokinin), ultraviolet-B (UV-B), and wounding. The recombinant proteins DcCHI1 and DcCHI4 were expressed in Escherichia coli and purified by His-Bind resin chromatography. Enzyme activity assay indicated that DcCHI1 catalyzed the formation of naringenin from naringenin chalcone, while DcCHI4 lacked this catalytic activity. Overexpression of DcCHI1 or DcCHI4 enhanced the flavonoid production in D. cambodiana and tobacco. These findings implied that DcCHI1 and DcCHI4 play important roles in flavonoid production. Thus, our study will not only contribute to better understand the function and expression regulation of CHI family genes involved in flavonoid production in D. cambodiana but also lay the foundation for developing the effective inducer of dragon's blood.
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Affiliation(s)
- Jiahong Zhu
- Key Laboratory of Biology and Genetic Resources of Tropical Crops, Ministry of Agriculture, Institute of Tropical Bioscience and Biotechnology, Chinese Academy of Tropical Agricultural Sciences, Haikou, China
- Hainan Academy of Tropical Agricultural Resource, Chinese Academy of Tropical Agricultural Sciences, Haikou, China
| | - Wan Zhao
- Key Laboratory of Biology and Genetic Resources of Tropical Crops, Ministry of Agriculture, Institute of Tropical Bioscience and Biotechnology, Chinese Academy of Tropical Agricultural Sciences, Haikou, China
| | - Rongshuang Li
- Key Laboratory of Biology and Genetic Resources of Tropical Crops, Ministry of Agriculture, Institute of Tropical Bioscience and Biotechnology, Chinese Academy of Tropical Agricultural Sciences, Haikou, China
| | - Dong Guo
- Key Laboratory of Biology and Genetic Resources of Tropical Crops, Ministry of Agriculture, Institute of Tropical Bioscience and Biotechnology, Chinese Academy of Tropical Agricultural Sciences, Haikou, China
- Hainan Academy of Tropical Agricultural Resource, Chinese Academy of Tropical Agricultural Sciences, Haikou, China
| | - Huiliang Li
- Key Laboratory of Biology and Genetic Resources of Tropical Crops, Ministry of Agriculture, Institute of Tropical Bioscience and Biotechnology, Chinese Academy of Tropical Agricultural Sciences, Haikou, China
- Hainan Academy of Tropical Agricultural Resource, Chinese Academy of Tropical Agricultural Sciences, Haikou, China
| | - Ying Wang
- Key Laboratory of Biology and Genetic Resources of Tropical Crops, Ministry of Agriculture, Institute of Tropical Bioscience and Biotechnology, Chinese Academy of Tropical Agricultural Sciences, Haikou, China
- Hainan Academy of Tropical Agricultural Resource, Chinese Academy of Tropical Agricultural Sciences, Haikou, China
| | - Wenli Mei
- Key Laboratory of Biology and Genetic Resources of Tropical Crops, Ministry of Agriculture, Institute of Tropical Bioscience and Biotechnology, Chinese Academy of Tropical Agricultural Sciences, Haikou, China
- Hainan Academy of Tropical Agricultural Resource, Chinese Academy of Tropical Agricultural Sciences, Haikou, China
- Wenli Mei,
| | - Shiqing Peng
- Key Laboratory of Biology and Genetic Resources of Tropical Crops, Ministry of Agriculture, Institute of Tropical Bioscience and Biotechnology, Chinese Academy of Tropical Agricultural Sciences, Haikou, China
- Hainan Academy of Tropical Agricultural Resource, Chinese Academy of Tropical Agricultural Sciences, Haikou, China
- *Correspondence: Shiqing Peng,
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Sohn SI, Pandian S, Oh YJ, Kang HJ, Cho WS, Cho YS. Metabolic Engineering of Isoflavones: An Updated Overview. FRONTIERS IN PLANT SCIENCE 2021; 12:670103. [PMID: 34163508 PMCID: PMC8216759 DOI: 10.3389/fpls.2021.670103] [Citation(s) in RCA: 32] [Impact Index Per Article: 10.7] [Reference Citation Analysis] [Abstract] [Key Words] [Track Full Text] [Subscribe] [Scholar Register] [Received: 02/20/2021] [Accepted: 04/21/2021] [Indexed: 05/04/2023]
Abstract
Isoflavones are ecophysiologically active secondary metabolites derived from the phenylpropanoid pathway. They were mostly found in leguminous plants, especially in the pea family. Isoflavones play a key role in plant-environment interactions and act as phytoalexins also having an array of health benefits to the humans. According to epidemiological studies, a high intake of isoflavones-rich diets linked to a lower risk of hormone-related cancers, osteoporosis, menopausal symptoms, and cardiovascular diseases. These characteristics lead to the significant advancement in the studies on genetic and metabolic engineering of isoflavones in plants. As a result, a number of structural and regulatory genes involved in isoflavone biosynthesis in plants have been identified and characterized. Subsequently, they were engineered in various crop plants for the increased production of isoflavones. Furthermore, with the advent of high-throughput technologies, the regulation of isoflavone biosynthesis gains attention to increase or decrease the level of isoflavones in the crop plants. In the review, we begin with the role of isoflavones in plants, environment, and its benefits in human health. Besides, the main theme is to discuss the updated research progress in metabolic engineering of isoflavones in other plants species and regulation of production of isoflavones in soybeans.
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Affiliation(s)
- Soo In Sohn
- Biosafety Division, Department of Agricultural Biotechnology, National Institute of Agricultural Sciences, Jeonju, South Korea
- *Correspondence: Soo-In Sohn,
| | - Subramani Pandian
- Biosafety Division, Department of Agricultural Biotechnology, National Institute of Agricultural Sciences, Jeonju, South Korea
| | - Young Ju Oh
- Institute for Future Environmental Ecology Co., Ltd., Jeonju, South Korea
| | - Hyeon Jung Kang
- Biosafety Division, Department of Agricultural Biotechnology, National Institute of Agricultural Sciences, Jeonju, South Korea
| | - Woo Suk Cho
- Biosafety Division, Department of Agricultural Biotechnology, National Institute of Agricultural Sciences, Jeonju, South Korea
| | - Youn Sung Cho
- Biosafety Division, Department of Agricultural Biotechnology, National Institute of Agricultural Sciences, Jeonju, South Korea
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28
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Gam DT, Khoi PH, Ngoc PB, Linh LK, Hung NK, Anh PTL, Thu NT, Hien NTT, Khanh TD, Ha CH. LED Lights Promote Growth and Flavonoid Accumulation of Anoectochilus roxburghii and Are Linked to the Enhanced Expression of Several Related Genes. PLANTS 2020; 9:plants9101344. [PMID: 33053736 PMCID: PMC7599663 DOI: 10.3390/plants9101344] [Citation(s) in RCA: 21] [Impact Index Per Article: 5.3] [Reference Citation Analysis] [Abstract] [Key Words] [Track Full Text] [Download PDF] [Figures] [Subscribe] [Scholar Register] [Received: 09/08/2020] [Revised: 09/30/2020] [Accepted: 10/06/2020] [Indexed: 01/01/2023]
Abstract
Anoectochilus roxburghii is a wild edible species and has been traditionally used for a wide range of diseases in many countries. Our research aims to find the optimal light-emitting diode (LED) lighting conditions to improve the growth and development of A. roxburghii seedling at the acclimation stage. Two-month-old explants were cultured under the various lighting conditions including red (R), blue (B), BR (one blue: four red), BRW151 (one blue: five red: one white), BRW142 (one blue: four red: two white), and fluorescent lamp (FL). The results showed that the lighting conditions not only affect the growth and morphology of plants but also the accumulation of total flavonoids. Single wavelengths (B or R LED) inhibited the growth and secondary biosynthesis of A. roxburghii, while the BR LED showed an enhancement in both growth and biomass accumulation. A. roxburghii plants were grown under BR LED light has average plant height (7.18 cm), stem diameter (17.6mm), number of leaves (5.78 leaves/tree), leaf area (4.67 cm2), fresh weight (0.459 g/tree), dry matter percentages (11.69%), and total flavonoid (1.811 mg/g FW) is considered to be superior to FL lamps and other LEDs in the experiment. This indicates that both blue and red wavelengths are required for the normal growth of A. roxburghii. To learn more about how light affects flavonoid biosynthesis, we evaluated the expression of genes involved in this process (pal, chs, chi, and fls) and found that BR LED light enhances the expression level of chi and fls genes compared to fluorescent lamps (1.18 and 1.21 times, respectively), leading to an increase in the flavonoid content of plant. Therefore, applying BR LED during in vitro propagation of A. roxburghii could be a feasible way to improve the medicinal value of this plant.
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Affiliation(s)
- Do Thi Gam
- Institute of Biotechnology, Vietnam Academy of Science and Technology (VAST), 18 Hoang Quoc Viet, Nghia Do, Cau Giay, Hanoi 100000, Vietnam; (D.T.G.); (P.B.N.); (L.K.L.); (N.K.H.); (N.T.T.H.)
- Center for High Technology Development, Vietnam Academy of Science and Technology (VAST), 18 Hoang Quoc Viet, Nghia Do, Cau Giay, Hanoi 100000, Vietnam; (P.H.K.); (P.T.L.A.); (N.T.T.)
| | - Phan Hong Khoi
- Center for High Technology Development, Vietnam Academy of Science and Technology (VAST), 18 Hoang Quoc Viet, Nghia Do, Cau Giay, Hanoi 100000, Vietnam; (P.H.K.); (P.T.L.A.); (N.T.T.)
| | - Pham Bich Ngoc
- Institute of Biotechnology, Vietnam Academy of Science and Technology (VAST), 18 Hoang Quoc Viet, Nghia Do, Cau Giay, Hanoi 100000, Vietnam; (D.T.G.); (P.B.N.); (L.K.L.); (N.K.H.); (N.T.T.H.)
- Vietnam Academy of Science and Technology (VAST), Graduate University of Science and Technology, 18 Hoang Quoc Viet, Nghia Do, Cau Giay, Hanoi 100000, Vietnam
| | - Ly Khanh Linh
- Institute of Biotechnology, Vietnam Academy of Science and Technology (VAST), 18 Hoang Quoc Viet, Nghia Do, Cau Giay, Hanoi 100000, Vietnam; (D.T.G.); (P.B.N.); (L.K.L.); (N.K.H.); (N.T.T.H.)
| | - Nguyen Khac Hung
- Institute of Biotechnology, Vietnam Academy of Science and Technology (VAST), 18 Hoang Quoc Viet, Nghia Do, Cau Giay, Hanoi 100000, Vietnam; (D.T.G.); (P.B.N.); (L.K.L.); (N.K.H.); (N.T.T.H.)
| | - Phan Thi Lan Anh
- Center for High Technology Development, Vietnam Academy of Science and Technology (VAST), 18 Hoang Quoc Viet, Nghia Do, Cau Giay, Hanoi 100000, Vietnam; (P.H.K.); (P.T.L.A.); (N.T.T.)
| | - Nguyen Thi Thu
- Center for High Technology Development, Vietnam Academy of Science and Technology (VAST), 18 Hoang Quoc Viet, Nghia Do, Cau Giay, Hanoi 100000, Vietnam; (P.H.K.); (P.T.L.A.); (N.T.T.)
| | - Nguyen Thi Thu Hien
- Institute of Biotechnology, Vietnam Academy of Science and Technology (VAST), 18 Hoang Quoc Viet, Nghia Do, Cau Giay, Hanoi 100000, Vietnam; (D.T.G.); (P.B.N.); (L.K.L.); (N.K.H.); (N.T.T.H.)
| | - Tran Dang Khanh
- Agricultural Genetics Institute, Pham Van Dong, North Tu Liem, Hanoi 123000, Vietnam;
- Center for Agricultural Innovation, Vietnam National University of Agriculture, Hanoi 131000, Vietnam
| | - Chu Hoang Ha
- Institute of Biotechnology, Vietnam Academy of Science and Technology (VAST), 18 Hoang Quoc Viet, Nghia Do, Cau Giay, Hanoi 100000, Vietnam; (D.T.G.); (P.B.N.); (L.K.L.); (N.K.H.); (N.T.T.H.)
- Vietnam Academy of Science and Technology (VAST), Graduate University of Science and Technology, 18 Hoang Quoc Viet, Nghia Do, Cau Giay, Hanoi 100000, Vietnam
- Correspondence: ; Tel.: 84-9121-75636
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Diaz-Uribe C, Vallejo W, Flórez J, Trilleras J, Gutierrez M, Rodriguez-Serrano A, Schott E, Zarate X. Furanyl chalcone derivatives as efficient singlet oxygen quenchers. An experimental and DFT/MRCI study. Tetrahedron 2020. [DOI: 10.1016/j.tet.2020.131248] [Citation(s) in RCA: 2] [Impact Index Per Article: 0.5] [Reference Citation Analysis] [Track Full Text] [Journal Information] [Subscribe] [Scholar Register] [Indexed: 11/27/2022]
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Liew YJM, Lee YK, Khalid N, Rahman NA, Tan BC. Enhancing flavonoid production by promiscuous activity of prenyltransferase, BrPT2 from Boesenbergia rotunda. PeerJ 2020; 8:e9094. [PMID: 32391211 PMCID: PMC7197402 DOI: 10.7717/peerj.9094] [Citation(s) in RCA: 6] [Impact Index Per Article: 1.5] [Reference Citation Analysis] [Abstract] [Key Words] [Track Full Text] [Download PDF] [Figures] [Journal Information] [Subscribe] [Scholar Register] [Received: 12/26/2019] [Accepted: 04/09/2020] [Indexed: 11/20/2022] Open
Abstract
Flavonoids and prenylated flavonoids are active components in medicinal plant extracts which exhibit beneficial effects on human health. Prenylated flavonoids consist of a flavonoid core with a prenyl group attached to it. This prenylation process is catalyzed by prenyltranferases (PTs). At present, only a few flavonoid-related PT genes have been identified. In this study, we aimed to investigate the roles of PT in flavonoid production. We isolated a putative PT gene (designated as BrPT2) from a medicinal ginger, Boesenbergia rotunda. The deduced protein sequence shared highest gene sequence homology (81%) with the predicted homogentisate phytyltransferase 2 chloroplastic isoform X1 from Musa acuminata subsp. Malaccensis. We then cloned the BrPT2 into pRI vector and expressed in B. rotunda cell suspension cultures via Agrobacterium-mediated transformation. The BrPT2-expressing cells were fed with substrate, pinostrobin chalcone, and their products were analyzed by liquid chromatography mass spectrometry. We found that the amount of flavonoids, namely alpinetin, pinostrobin, naringenin and pinocembrin, in BrPT2-expressing cells was higher than those obtained from the wild type cells. However, we were unable to detect any targeted prenylated flavonoids. Further in-vitro assay revealed that the reaction containing the BrPT2 protein produced the highest accumulation of pinostrobin from the substrate pinostrobin chalcone compared to the reaction without BrPT2 protein, suggesting that BrPT2 was able to accelerate the enzymatic reaction. The finding of this study implied that the isolated BrPT2 may not be involved in the prenylation of pinostrobin chalcone but resulted in high yield and production of other flavonoids, which is likely related to enzyme promiscuous activities.
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Affiliation(s)
- Yvonne Jing Mei Liew
- Institute of Biological Sciences, Faculty of Science, University of Malaya, Kuala Lumpur, Malaysia
| | - Yean Kee Lee
- Department of Chemistry, Faculty of Science, University of Malaya, Kuala Lumpur, Malaysia
| | - Norzulaani Khalid
- Institute of Biological Sciences, Faculty of Science, University of Malaya, Kuala Lumpur, Malaysia.,Center for Research in Biotechnology for Agriculture, University of Malaya, Kuala Lumpur, Malaysia
| | - Noorsaadah Abd Rahman
- Department of Chemistry, Faculty of Science, University of Malaya, Kuala Lumpur, Malaysia
| | - Boon Chin Tan
- Center for Research in Biotechnology for Agriculture, University of Malaya, Kuala Lumpur, Malaysia
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The Chalcone Isomerase Family in Cotton: Whole-Genome Bioinformatic and Expression Analyses of the Gossypium barbadense L. Response to Fusarium Wilt Infection. Genes (Basel) 2019; 10:genes10121006. [PMID: 31817162 PMCID: PMC6947653 DOI: 10.3390/genes10121006] [Citation(s) in RCA: 8] [Impact Index Per Article: 1.6] [Reference Citation Analysis] [Abstract] [Key Words] [Track Full Text] [Download PDF] [Figures] [Journal Information] [Subscribe] [Scholar Register] [Received: 10/30/2019] [Revised: 12/01/2019] [Accepted: 12/03/2019] [Indexed: 01/23/2023] Open
Abstract
Chalcone isomerase (CHI) is a key component of phenylalanine metabolism that can produce a variety of flavonoids. However, little information and no systematic analysis of CHI genes is available for cotton. Here, we identified 33 CHI genes in the complete genome sequences of four cotton species (Gossypium arboretum L., Gossypium raimondii L., Gossypium hirsutum L., and Gossypium barbadense L.). Cotton CHI proteins were classified into two main groups, and whole-genome/segmental and dispersed duplication events were important in CHI gene family expansion. qRT-PCR and semiquantitative RT-PCR results suggest that CHI genes exhibit temporal and spatial variation and respond to infection with Fusarium wilt race 7. A preliminary model of CHI gene involvement in cotton evolution was established. Pairwise comparison revealed that seven CHI genes showed higher expression in cultivar 06-146 than in cultivar Xinhai 14. Overall, this whole-genome identification unlocks a new approach to the comprehensive functional analysis of the CHI gene family, which may be involved in adaptation to plant pathogen stress.
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Zhang Q, Zhai J, Chen G, Lin W, Peng C. The Changing Distribution of Anthocyanin in Mikania micrantha Leaves as an Adaption to Low-Temperature Environments. PLANTS (BASEL, SWITZERLAND) 2019; 8:E456. [PMID: 31717889 PMCID: PMC6918224 DOI: 10.3390/plants8110456] [Citation(s) in RCA: 5] [Impact Index Per Article: 1.0] [Reference Citation Analysis] [Abstract] [Key Words] [Grants] [Track Full Text] [Download PDF] [Figures] [Subscribe] [Scholar Register] [Received: 09/29/2019] [Revised: 10/24/2019] [Accepted: 10/24/2019] [Indexed: 11/23/2022]
Abstract
Anthocyanins, a protective substance in plant leaves, can accumulate in large quantities under low-temperature induction. In order to explore the effect of anthocyanins in Mikania micrantha leaves, the Rubisco, photosynthesis, pigments, and antioxidative capacity in mature leaves (ML) and young leaves (YL) of M. micrantha were investigated in winter. YL were red on both the adaxial and abaxial surfaces, while ML was red on the abaxial surfaces and green on the adaxial surfaces. Compared with ML, the relative expression of the genes related to anthocyanin synthesis and anthocyanin content were significantly higher in YL. Antioxidants such as flavonoids and total phenols were found in higher quantities, and the total antioxidant capacity was also significantly higher in YL. However, in ML, the Rubisco and chlorophyll content related to photosynthesis were significantly higher. The stomata of ML displayed a larger aperture than YL, and the stomatal conductance and photosynthetic rate were significantly higher in ML. The results suggested that M. micrantha leaves could better adapt to the winter environment through changing the distribution of anthocyanins in leaves of different maturity.
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Affiliation(s)
| | | | | | | | - Changlian Peng
- Guangdong Provincial Key Laboratory of Biotechnology for Plant Development, School of Life Sciences, South China Normal University, Guangzhou 510631, China; (Q.Z.); (J.Z.); (G.C.); (W.L.)
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