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Tang J, Li E, Liu J, Zhang Z, Hua B, Jiang J, Miao M. Selection of Reliable Reference Genes for Gene Expression Normalization in Sagittaria trifolia. Genes (Basel) 2023; 14:1321. [PMID: 37510226 PMCID: PMC10379039 DOI: 10.3390/genes14071321] [Citation(s) in RCA: 1] [Impact Index Per Article: 1.0] [Reference Citation Analysis] [Abstract] [Key Words] [Grants] [Track Full Text] [Journal Information] [Subscribe] [Scholar Register] [Received: 04/26/2023] [Revised: 06/15/2023] [Accepted: 06/21/2023] [Indexed: 07/30/2023] Open
Abstract
Real-time quantitative PCR (RT-qPCR) is a method with high sensitivity and convenience that has been extensively used to analyze the expression level of target genes. A reference gene with a highly stable expression is required to ensure the accuracy of experimental results. However, the report on appropriate reference genes in arrowheads (Sagittaria trifolia) is still limited. In this study, eight candidate reference genes (ACT5, UBQ, GAPDH, CYP, NAC, IDH, SLEEPER and PLA) were selected. The candidate genes were employed in a RT-qPCR assay in different tissues at different developmental stages of the same tissue (including corm, leaf and leafstalk) in arrowheads. Five statistical algorithms, GeNorm, NormFinder, BestKeeper, delta cycle threshold (ΔCt) and RefFinder, were used to evaluate the stability of these genes' expressions in order to identify the appropriate reference genes. The results showed that UBQ was the optimum reference gene in leaf, leafstalk, root, stolon and corm, IDH exhibited the most stable expression during the expansion of corm, UBQ and PLA were the most stable reference genes in developmental stages of leaf and leafstalk, respectively. Finally, the reliability of reference genes was further confirmed by the normalization of PDS and EXP1 genes under different arrowhead tissues and developmental stages of corm, respectively. This study constitutes important guidance for the selection of reliable reference genes for analyzing the tissue- and developmental-stage-specific expression of genes in arrowheads.
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Affiliation(s)
- Jing Tang
- College of Horticulture and Landscape, Yangzhou University, Yangzhou 225009, China
| | - Enjiao Li
- College of Horticulture and Landscape, Yangzhou University, Yangzhou 225009, China
| | - Jiexia Liu
- College of Horticulture and Landscape, Yangzhou University, Yangzhou 225009, China
| | - Zhiping Zhang
- College of Horticulture and Landscape, Yangzhou University, Yangzhou 225009, China
| | - Bing Hua
- College of Horticulture and Landscape, Yangzhou University, Yangzhou 225009, China
| | - Jiezeng Jiang
- College of Horticulture and Landscape, Yangzhou University, Yangzhou 225009, China
| | - Minmin Miao
- College of Horticulture and Landscape, Yangzhou University, Yangzhou 225009, China
- Joint International Research Laboratory of Agriculture and Agri-Product Safety of Ministry of Education of China, Yangzhou University, Yangzhou 225009, China
- Key Laboratory of Plant Functional Genomics of the Ministry of Education/Jiangsu Key Laboratory of Crop Genomics and Molecular Breeding, Yangzhou University, Yangzhou 225009, China
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Anti-Inflammatory and Antioxidant Effects Induced by Allium sativum L. Extracts on an Ex Vivo Experimental Model of Ulcerative Colitis. Foods 2022; 11:foods11223559. [PMID: 36429152 PMCID: PMC9689397 DOI: 10.3390/foods11223559] [Citation(s) in RCA: 4] [Impact Index Per Article: 2.0] [Reference Citation Analysis] [Abstract] [Key Words] [Track Full Text] [Figures] [Journal Information] [Subscribe] [Scholar Register] [Received: 09/06/2022] [Revised: 10/25/2022] [Accepted: 11/04/2022] [Indexed: 11/11/2022] Open
Abstract
Inflammatory bowel diseases (IBDs) are chronic and multifactorial inflammatory conditions of the colonic mucosa (ulcerative colitis), characterized by increased and unbalanced immune response to external stimuli. Garlic and its bioactive constituents were reported to exert various biological effects, including anti-inflammatory, antioxidant and immunomodulatory activities. We aimed to evaluate the protective effects of a hydroalcoholic (GHE) and a water (GWE) extract from a Sicilian variety of garlic, known as Nubia red garlic, on an ex vivo experimental model of ulcerative colitis, involving isolated LPS-treated mouse colon specimens. Both extracts were able to counteract LPS-induced cyclooxygenase (COX)-2, tumor necrosis factor (TNF)-α, nuclear factor-kB (NF-kB), and interleukin (IL)-6 gene expression in mouse colon. Moreover, the same extracts inhibited prostaglandin (PG)E2, 8-iso-PGF2α, and increased the 5-hydroxyindoleacetic acid/serotonin ratio following treatment with LPS. In particular, GHE showed a better anti-inflammatory profile. The anti-inflammatory and antioxidant effects induced by both extracts could be related, at least partially, to their polyphenolic composition, with particular regards to catechin. Concluding, our results showed that GHE and GWE exhibited protective effects in colon, thus suggesting their potential use in the prevention and management of ulcerative colitis.
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Sathasivam R, Kim NS, Choi M, Kwon H, Nguyen BV, Kim JK, Jeong DH, Park EJ, Park HW, Park SU. Identification, In Silico Characterization, and Differential Expression Profiles of Carotenoid, Xanthophyll, Apocarotenoid Biosynthetic Pathways Genes, and Analysis of Carotenoid and Xanthophyll Accumulation in Heracleum moellendorffii Hance. Int J Mol Sci 2022; 23:ijms23094845. [PMID: 35563233 PMCID: PMC9099461 DOI: 10.3390/ijms23094845] [Citation(s) in RCA: 0] [Impact Index Per Article: 0] [Reference Citation Analysis] [Abstract] [Key Words] [MESH Headings] [Track Full Text] [Download PDF] [Figures] [Journal Information] [Subscribe] [Scholar Register] [Received: 04/04/2022] [Revised: 04/22/2022] [Accepted: 04/25/2022] [Indexed: 11/30/2022] Open
Abstract
Heracleum moellendorffii Hance is a non-woody forest plant widely used in China, Korea, and Japan because of its various therapeutic properties. However, the genetic details of the carotenoid pathway (CP), xanthophyll pathway (XP), and apocarotenoid pathway (AP) genes have not been studied. Thus, the CP, XP, and AP genes of H. moellendorffii were detected and analyzed. A total of fifteen genes were identified, of which eight, four, and three belonged to CP, XP, and AP, respectively. All identified genes possessed full open reading frames. Phylogenetic characterization of the identified gene sequences showed the highest similarity with other higher plants. Multiple alignments and 3D dimensional structures showed several diverse conserved motifs, such as the carotene-binding motif, dinucleotide-binding motif, and aspartate or glutamate residues. The results of real-time PCR showed that the CP, XP, and AP genes were highly expressed in leaves, followed by the stems and roots. In total, eight different individual carotenoids were identified using HPLC analysis. The highest individual and total carotenoid content were achieved in the leaves, followed by the stems and roots. This study will provide more information on the gene structure of the CP, XP, and AP genes, which may help to increase the accumulation of carotenoids in H. moellendorffii through genetic engineering. These results could be helpful for further molecular and functional studies of CP, XP, and AP genes.
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Affiliation(s)
- Ramaraj Sathasivam
- Department of Crop Science, Chungnam National University, 99 Daehak-ro, Yuseong-gu, Daejeon 34134, Korea; (R.S.); (M.C.); (H.K.)
| | - Nam Su Kim
- Korea Research Institute of Bioscience and Biotechnology, 30 Yeongudanji-ro, Ochang-eup, Cheongju-si 28116, Korea;
| | - Minsol Choi
- Department of Crop Science, Chungnam National University, 99 Daehak-ro, Yuseong-gu, Daejeon 34134, Korea; (R.S.); (M.C.); (H.K.)
| | - Haejin Kwon
- Department of Crop Science, Chungnam National University, 99 Daehak-ro, Yuseong-gu, Daejeon 34134, Korea; (R.S.); (M.C.); (H.K.)
| | - Bao Van Nguyen
- Department of Smart Agriculture Systems, Chungnam National University, 99 Daehak-ro, Yuseong-gu, Daejeon 34134, Korea;
| | - Jae Kwang Kim
- Division of Life Sciences, College of Life Sciences and Bioengineering, Incheon National University, 119 Academy-ro, Yeonsu-gu, Incheon 22012, Korea;
| | - Dae Hui Jeong
- Forest Medicinal Resources Research Center, National Institute of Forest Science, Yeongju 36040, Korea; (D.H.J.); (E.J.P.)
| | - Eung Jun Park
- Forest Medicinal Resources Research Center, National Institute of Forest Science, Yeongju 36040, Korea; (D.H.J.); (E.J.P.)
| | - Hong Woo Park
- Forest Medicinal Resources Research Center, National Institute of Forest Science, Yeongju 36040, Korea; (D.H.J.); (E.J.P.)
- Correspondence: (H.W.P.); (S.U.P.); Tel.: +82-54-630-5649 (H.W.P.); +82-42-821-5730 (S.U.P.); Fax: +82-42-822-2631 (S.U.P.)
| | - Sang Un Park
- Department of Crop Science, Chungnam National University, 99 Daehak-ro, Yuseong-gu, Daejeon 34134, Korea; (R.S.); (M.C.); (H.K.)
- Department of Smart Agriculture Systems, Chungnam National University, 99 Daehak-ro, Yuseong-gu, Daejeon 34134, Korea;
- Correspondence: (H.W.P.); (S.U.P.); Tel.: +82-54-630-5649 (H.W.P.); +82-42-821-5730 (S.U.P.); Fax: +82-42-822-2631 (S.U.P.)
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Sathasivam R, Bong SJ, Park CH, Kim JH, Kim JK, Park SU. Identification, Characterization, and Expression Analysis of Carotenoid Biosynthesis Genes and Carotenoid Accumulation in Watercress ( Nasturtium officinale R. Br.). ACS OMEGA 2022; 7:430-442. [PMID: 35036712 PMCID: PMC8756599 DOI: 10.1021/acsomega.1c04802] [Citation(s) in RCA: 3] [Impact Index Per Article: 1.5] [Reference Citation Analysis] [Abstract] [Grants] [Track Full Text] [Subscribe] [Scholar Register] [Received: 09/01/2021] [Accepted: 12/06/2021] [Indexed: 06/01/2023]
Abstract
Watercress (Nasturtium officinale R. Br.) is an important aquatic herb species belonging to the Brassicaceae family. It has various medicinal properties and has been utilized for the treatment of cancer and other diseases; however, currently available genomic information regarding this species is limited. Here, we performed the first comprehensive analysis of the carotenoid biosynthesis pathway (CBP) genes of N. officinale, which were identified from next-generation sequencing data. We identified and characterized 11 putative carotenoid pathway genes; among these, nine full and two partial open reading frames were determined. These genes were closely related to CBP genes of the other higher plants in the phylogenetic tree. Three-dimensional structure analysis and multiple alignments revealed several distinct conserved motifs, including aspartate or glutamate residues, carotene-binding motifs, and dinucleotide-binding motifs. Quantitative reverse transcription-polymerase chain reaction results showed that the CBP was expressed in a tissue-specific manner: expression levels of NoPSY, NoPDS, NoZDS-p, NoCrtISO, NoLCYE, NoCHXE-p, and NoCCD were highest in the flower, whereas NoLCYB, NoCHXB, NoZEP, and NoNCED were highest in the leaves. Stems, roots, and seeds did not show a significant change in the expression compared to the leaves and flowers. High-performance liquid chromatography analysis of the same organs showed the presence of seven distinct carotenoid compounds. The total carotenoid content was highest in the leaves followed by flowers, seeds, stems, and roots. Among the seven individual carotenoids, the levels of six carotenoids (i.e., 13-Z-β-carotene, 9-Z-β-carotene, E-β-carotene, lutein, violaxanthin, and β-cryptoxanthin) were highest in the leaves. The highest content was observed for lutein, followed by E-β-carotene, and 9-Z-β-carotene; these carotenoids were much higher in the leaves compared to the other organs. The results will be useful references for further molecular genetics and functional studies involving this species and other closely related species.
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Affiliation(s)
- Ramaraj Sathasivam
- Department
of Crop Science, Chungnam National University, 99 Daehak-ro, Yuseong-gu, Daejeon 34134, Republic of Korea
| | - Sun Ju Bong
- Department
of Crop Science, Chungnam National University, 99 Daehak-ro, Yuseong-gu, Daejeon 34134, Republic of Korea
| | - Chang Ha Park
- Department
of Crop Science, Chungnam National University, 99 Daehak-ro, Yuseong-gu, Daejeon 34134, Republic of Korea
| | - Ji Hyun Kim
- Division
of Life Sciences, College of Life Sciences and Bioengineering, Incheon National University, 119 Academy-ro, Yeonsu-gu, Incheon 22012, Republic of Korea
| | - Jae Kwang Kim
- Division
of Life Sciences, College of Life Sciences and Bioengineering, Incheon National University, 119 Academy-ro, Yeonsu-gu, Incheon 22012, Republic of Korea
| | - Sang Un Park
- Department
of Crop Science, Chungnam National University, 99 Daehak-ro, Yuseong-gu, Daejeon 34134, Republic of Korea
- Department
of Smart Agriculture Systems, Chungnam National
University, 99 Daehak-ro, Yuseong-gu, Daejeon 34134, Republic of Korea
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Sathasivam R, Yeo HJ, Park CH, Choi M, Kwon H, Sim JE, Park SU, Kim JK. Molecular Characterization, Expression Analysis of Carotenoid, Xanthophyll, Apocarotenoid Pathway Genes, and Carotenoid and Xanthophyll Accumulation in Chelidonium majus L. PLANTS 2021; 10:plants10081753. [PMID: 34451798 PMCID: PMC8398043 DOI: 10.3390/plants10081753] [Citation(s) in RCA: 3] [Impact Index Per Article: 1.0] [Reference Citation Analysis] [Abstract] [Key Words] [Track Full Text] [Download PDF] [Figures] [Subscribe] [Scholar Register] [Received: 07/30/2021] [Revised: 08/18/2021] [Accepted: 08/20/2021] [Indexed: 11/16/2022]
Abstract
Chelidonium majus L. is a perennial herbaceous plant that has various medicinal properties. However, the genomic information about its carotenoid biosynthesis pathway (CBP), xanthophyll biosynthesis pathway (XBP), and apocarotenoid biosynthesis pathway (ABP) genes were limited. Thus, the CBP, XBP, and ABP genes of C. majus were identified and analyzed. Among the 15 carotenoid pathway genes identified, 11 full and 4 partial open reading frames were determined. Phylogenetic analysis of these gene sequences showed higher similarity with higher plants. Through 3D structural analysis and multiple alignments, several distinct conserved motifs were identified, including dinucleotide binding motif, carotene binding motif, and aspartate or glutamate residues. Quantitative RT-PCR showed that CBP, XBP, and ABP genes were expressed in a tissue-specific manner; the highest expression levels were achieved in flowers, followed by those in leaves, roots, and stems. The HPLC analysis of the different organs showed the presence of eight different carotenoids. The highest total carotenoid content was found in leaves, followed by that in flowers, stems, and roots. This study provides information on the molecular mechanisms involved in CBP, XBP, and ABP genes, which might help optimize the carotenoid production in C. majus. The results could also be a basis of further studies on the molecular genetics and functional analysis of CBP, XBP, and ABP genes.
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Affiliation(s)
- Ramaraj Sathasivam
- Department of Crop Science, Chungnam National University, 99 Daehak-ro, Yuseong-gu, Daejeon 34134, Korea; (R.S.); (H.J.Y.); (C.H.P.); (M.C.); (H.K.)
| | - Hyeon Ji Yeo
- Department of Crop Science, Chungnam National University, 99 Daehak-ro, Yuseong-gu, Daejeon 34134, Korea; (R.S.); (H.J.Y.); (C.H.P.); (M.C.); (H.K.)
| | - Chang Ha Park
- Department of Crop Science, Chungnam National University, 99 Daehak-ro, Yuseong-gu, Daejeon 34134, Korea; (R.S.); (H.J.Y.); (C.H.P.); (M.C.); (H.K.)
| | - Minsol Choi
- Department of Crop Science, Chungnam National University, 99 Daehak-ro, Yuseong-gu, Daejeon 34134, Korea; (R.S.); (H.J.Y.); (C.H.P.); (M.C.); (H.K.)
| | - Haejin Kwon
- Department of Crop Science, Chungnam National University, 99 Daehak-ro, Yuseong-gu, Daejeon 34134, Korea; (R.S.); (H.J.Y.); (C.H.P.); (M.C.); (H.K.)
| | - Ji Eun Sim
- Division of Life Sciences, College of Life Sciences and Bioengineering, Incheon National University, Yeonsu-gu, Incheon 22012, Korea;
| | - Sang Un Park
- Department of Crop Science, Chungnam National University, 99 Daehak-ro, Yuseong-gu, Daejeon 34134, Korea; (R.S.); (H.J.Y.); (C.H.P.); (M.C.); (H.K.)
- Department of Smart Agriculture Systems, Chungnam National University, 99 Daehak-ro, Yuseong-gu, Daejeon 34134, Korea
- Correspondence: (S.U.P.); (J.K.K.); Tel.: +82-42-821-5730 (S.U.P.); +82-32-835-8241 (J.K.K.); Fax: +82-42-822-2631 (S.U.P.); +82-32-835-0763 (J.K.K.)
| | - Jae Kwang Kim
- Division of Life Sciences, College of Life Sciences and Bioengineering, Incheon National University, Yeonsu-gu, Incheon 22012, Korea;
- Correspondence: (S.U.P.); (J.K.K.); Tel.: +82-42-821-5730 (S.U.P.); +82-32-835-8241 (J.K.K.); Fax: +82-42-822-2631 (S.U.P.); +82-32-835-0763 (J.K.K.)
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6
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Recinella L, Chiavaroli A, Masciulli F, Fraschetti C, Filippi A, Cesa S, Cairone F, Gorica E, De Leo M, Braca A, Martelli A, Calderone V, Orlando G, Ferrante C, Menghini L, Di Simone SC, Veschi S, Cama A, Brunetti L, Leone S. Protective Effects Induced by a Hydroalcoholic Allium sativum Extract in Isolated Mouse Heart. Nutrients 2021; 13:nu13072332. [PMID: 34371842 PMCID: PMC8308751 DOI: 10.3390/nu13072332] [Citation(s) in RCA: 13] [Impact Index Per Article: 4.3] [Reference Citation Analysis] [Abstract] [Key Words] [MESH Headings] [Track Full Text] [Download PDF] [Figures] [Journal Information] [Subscribe] [Scholar Register] [Received: 05/26/2021] [Revised: 06/28/2021] [Accepted: 07/05/2021] [Indexed: 12/12/2022] Open
Abstract
The aim of the present study was to investigate the possible protective effects of a garlic hydroalcoholic extract on the burden of oxidative stress and inflammation occurring on mouse heart specimens exposed to E. coli lipopolysaccharide (LPS), which is a well-established inflammatory stimulus. Headspace solid-phase microextraction combined with the gas chromatography-mass spectrometry (HS-SPME/GC-MS) technique was applied to determine the volatile fraction of the garlic powder, and the HS-SPME conditions were optimized for each of the most representative classes of compounds. CIEL*a*b* colorimetric analyses were performed on the powder sample at the time of delivery, after four and after eight months of storage at room temperature in the dark, to evaluate the color changing. Freshly prepared hydroalcoholic extract was also evaluated in its color character. Furthermore, the hydroalcoholic extract was analyzed through GC-MS. The extract was found to be able to significantly inhibit LPS-induced prostaglandin (PG) E2 and 8-iso-PGF2α levels, as well as mRNA levels of cyclooxygenase (COX)-2, interleukin (IL)-6, and nuclear factor-kB (NF-kB), in heart specimens. Concluding, our findings showed that the garlic hydroalcoholic extract exhibited cardioprotective effects on multiple inflammatory and oxidative stress pathways.
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Affiliation(s)
- Lucia Recinella
- Department of Pharmacy, G. d’Annunzio University of Chieti-Pescara, 66013 Chieti, Italy; (L.R.); (A.C.); (F.M.); (G.O.); (C.F.); (L.M.); (S.C.D.S.); (S.V.); (A.C.); (S.L.)
| | - Annalisa Chiavaroli
- Department of Pharmacy, G. d’Annunzio University of Chieti-Pescara, 66013 Chieti, Italy; (L.R.); (A.C.); (F.M.); (G.O.); (C.F.); (L.M.); (S.C.D.S.); (S.V.); (A.C.); (S.L.)
| | - Fabrizio Masciulli
- Department of Pharmacy, G. d’Annunzio University of Chieti-Pescara, 66013 Chieti, Italy; (L.R.); (A.C.); (F.M.); (G.O.); (C.F.); (L.M.); (S.C.D.S.); (S.V.); (A.C.); (S.L.)
| | - Caterina Fraschetti
- Department of Drug Chemistry and Technology, Sapienza University of Rome, 00185 Rome, Italy; (C.F.); (A.F.); (S.C.); (F.C.)
| | - Antonello Filippi
- Department of Drug Chemistry and Technology, Sapienza University of Rome, 00185 Rome, Italy; (C.F.); (A.F.); (S.C.); (F.C.)
| | - Stefania Cesa
- Department of Drug Chemistry and Technology, Sapienza University of Rome, 00185 Rome, Italy; (C.F.); (A.F.); (S.C.); (F.C.)
| | - Francesco Cairone
- Department of Drug Chemistry and Technology, Sapienza University of Rome, 00185 Rome, Italy; (C.F.); (A.F.); (S.C.); (F.C.)
| | - Era Gorica
- Department of Pharmacy, University of Pisa, 56126 Pisa, Italy; (E.G.); (M.D.L.); (A.B.); (A.M.); (V.C.)
| | - Marinella De Leo
- Department of Pharmacy, University of Pisa, 56126 Pisa, Italy; (E.G.); (M.D.L.); (A.B.); (A.M.); (V.C.)
- Interdepartmental Research Center “Nutrafood: Nutraceutica e Alimentazione per la Salute”, University of Pisa, 56126 Pisa, Italy
- CISUP, Centre for Instrumentation Sharing of Pisa University, 56126 Pisa, Italy
| | - Alessandra Braca
- Department of Pharmacy, University of Pisa, 56126 Pisa, Italy; (E.G.); (M.D.L.); (A.B.); (A.M.); (V.C.)
- Interdepartmental Research Center “Nutrafood: Nutraceutica e Alimentazione per la Salute”, University of Pisa, 56126 Pisa, Italy
- CISUP, Centre for Instrumentation Sharing of Pisa University, 56126 Pisa, Italy
| | - Alma Martelli
- Department of Pharmacy, University of Pisa, 56126 Pisa, Italy; (E.G.); (M.D.L.); (A.B.); (A.M.); (V.C.)
- Interdepartmental Research Center “Nutrafood: Nutraceutica e Alimentazione per la Salute”, University of Pisa, 56126 Pisa, Italy
- Interdepartmental Research Center “Biology and Pathology of Ageing”, University of Pisa, 56126 Pisa, Italy
| | - Vincenzo Calderone
- Department of Pharmacy, University of Pisa, 56126 Pisa, Italy; (E.G.); (M.D.L.); (A.B.); (A.M.); (V.C.)
- Interdepartmental Research Center “Nutrafood: Nutraceutica e Alimentazione per la Salute”, University of Pisa, 56126 Pisa, Italy
- Interdepartmental Research Center “Biology and Pathology of Ageing”, University of Pisa, 56126 Pisa, Italy
| | - Giustino Orlando
- Department of Pharmacy, G. d’Annunzio University of Chieti-Pescara, 66013 Chieti, Italy; (L.R.); (A.C.); (F.M.); (G.O.); (C.F.); (L.M.); (S.C.D.S.); (S.V.); (A.C.); (S.L.)
| | - Claudio Ferrante
- Department of Pharmacy, G. d’Annunzio University of Chieti-Pescara, 66013 Chieti, Italy; (L.R.); (A.C.); (F.M.); (G.O.); (C.F.); (L.M.); (S.C.D.S.); (S.V.); (A.C.); (S.L.)
| | - Luigi Menghini
- Department of Pharmacy, G. d’Annunzio University of Chieti-Pescara, 66013 Chieti, Italy; (L.R.); (A.C.); (F.M.); (G.O.); (C.F.); (L.M.); (S.C.D.S.); (S.V.); (A.C.); (S.L.)
| | - Simonetta Cristina Di Simone
- Department of Pharmacy, G. d’Annunzio University of Chieti-Pescara, 66013 Chieti, Italy; (L.R.); (A.C.); (F.M.); (G.O.); (C.F.); (L.M.); (S.C.D.S.); (S.V.); (A.C.); (S.L.)
| | - Serena Veschi
- Department of Pharmacy, G. d’Annunzio University of Chieti-Pescara, 66013 Chieti, Italy; (L.R.); (A.C.); (F.M.); (G.O.); (C.F.); (L.M.); (S.C.D.S.); (S.V.); (A.C.); (S.L.)
| | - Alessandro Cama
- Department of Pharmacy, G. d’Annunzio University of Chieti-Pescara, 66013 Chieti, Italy; (L.R.); (A.C.); (F.M.); (G.O.); (C.F.); (L.M.); (S.C.D.S.); (S.V.); (A.C.); (S.L.)
| | - Luigi Brunetti
- Department of Pharmacy, G. d’Annunzio University of Chieti-Pescara, 66013 Chieti, Italy; (L.R.); (A.C.); (F.M.); (G.O.); (C.F.); (L.M.); (S.C.D.S.); (S.V.); (A.C.); (S.L.)
- Correspondence: ; Tel.: +39-0871-3554758
| | - Sheila Leone
- Department of Pharmacy, G. d’Annunzio University of Chieti-Pescara, 66013 Chieti, Italy; (L.R.); (A.C.); (F.M.); (G.O.); (C.F.); (L.M.); (S.C.D.S.); (S.V.); (A.C.); (S.L.)
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7
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Wang G, Tian C, Wang Y, Wan F, Hu L, Xiong A, Tian J. Selection of reliable reference genes for quantitative RT-PCR in garlic under salt stress. PeerJ 2019; 7:e7319. [PMID: 31341748 PMCID: PMC6640627 DOI: 10.7717/peerj.7319] [Citation(s) in RCA: 16] [Impact Index Per Article: 3.2] [Reference Citation Analysis] [Abstract] [Key Words] [Track Full Text] [Download PDF] [Figures] [Journal Information] [Subscribe] [Scholar Register] [Received: 01/22/2019] [Accepted: 06/18/2019] [Indexed: 12/21/2022] Open
Abstract
Quantitative real-time reverse-transcriptase PCR (qRT-PCR) has been frequently used for detecting gene expression. To obtain reliable results, selection of suitable reference genes is a fundamental and necessary step. Garlic (Allium sativum), a member from Alliaceae family, has been used both as a food flavoring and as a traditional medicine. In the present study, garlic plants were exposed to salt stress (200 mM NaCl) for 0, 1, 4 and 12 h, and garlic roots, bulbs, and leaves were harvested for subsequent analysis. The expression stability of eight candidate reference genes, eukaryotic translation initiation factor 4α (eIF-4α), actin (ACTIN), tubulin β-7 (TUB7), TAP42-interacting protein of 41 kDa (TIP41), glyceraldehyde-3-phosphate dehydrogenase (GAPDH), SAND family protein (SAND), elongation factor 1 alpha (EF-1α), and protein phosphatase 2A (PP2A) were evaluated by geNorm, NormFinder, and BestKeeper. All genes tested displayed variable expression profiles under salt stress. In the leaf and root group, ACTIN was the best reference gene for normalizing gene expression. In garlic clove, ACTIN and SAND were the least variable, and were suitable for gene expression studies under salt stress; these two genes also performed well in all samples tested. Based on our results, we recommend that it is essential to use specific reference genes in different situations to obtain accurate results. Using a combination of multiple stable reference genes, such as ACTIN and SAND, to normalize gene expression is encouraged. The results from the study will be beneficial for accurate determination of gene expression in garlic and other plants.
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Affiliation(s)
- Guanglong Wang
- School of Life Science and Food Engineering, Huaiyin Institute of Technology, Huaian, Jiangsu, China
| | - Chang Tian
- Key Laboratory of Landscape Agriculture, Ministry of Agriculture, College of Horticulture, Nanjing Agricultural University, Nanjing, Jiangsu, China
| | - Yunpeng Wang
- School of Life Science and Food Engineering, Huaiyin Institute of Technology, Huaian, Jiangsu, China
| | - Faxiang Wan
- School of Life Science and Food Engineering, Huaiyin Institute of Technology, Huaian, Jiangsu, China
| | - Laibao Hu
- School of Life Science and Food Engineering, Huaiyin Institute of Technology, Huaian, Jiangsu, China
| | - Aisheng Xiong
- State Key Laboratory of Crop Genetics and Germplasm Enhancement, College of Horticulture, Nanjing Agricultural University, Nanjing, Jiangsu, China
| | - Jie Tian
- Academy of Agriculture and Forestry Sciences of Qinghai University (Qinghai Academy of Agriculture and Forestry Sciences), Qinghai Key Laboratory of Vegetable Genetics and Physiology, State Key Laboratory of Plateau Ecology and Agriculture, Qinghai University, Qinghai, China
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Cuong DM, Arasu MV, Jeon J, Park YJ, Kwon SJ, Al-Dhabi NA, Park SU. Medically important carotenoids from Momordica charantia and their gene expressions in different organs. Saudi J Biol Sci 2017; 24:1913-1919. [PMID: 29551944 PMCID: PMC5851905 DOI: 10.1016/j.sjbs.2017.11.039] [Citation(s) in RCA: 26] [Impact Index Per Article: 3.7] [Reference Citation Analysis] [Abstract] [Key Words] [Track Full Text] [Download PDF] [Figures] [Journal Information] [Subscribe] [Scholar Register] [Received: 10/16/2017] [Revised: 11/09/2017] [Accepted: 11/12/2017] [Indexed: 12/16/2022] Open
Abstract
Carotenoids, found in the fruit and different organs of bitter melon (Momordica charantia), have attracted great attention for their potential health benefits in treating several major chronic diseases. Therefore, study related to the identification and quantification of the medically important carotenoid metabolites is highly important for the treatment of various disorderes. The present study involved in the identification and quantification of the various carotenoids present in the different organs of M. charantia and the identification of the genes responsible for the accumulation of the carotenoids with respect to the transcriptome levels were investigated. In this study, using the transcriptome database of bitter melon, a partial-length cDNA clone encoding geranylgeranyl pyrophosphate synthase (McGGPPS2), and several full-length cDNA clones encoding geranylgeranyl pyrophosphate synthase (McGGPPS1), zeta-carotene desaturase (McZDS), lycopene beta-cyclase (McLCYB), lycopene epsilon cyclases (McLCYE1 and McLCYE2), beta-carotene hydroxylase (McCHXB), and zeaxanthin epoxidase (McZEP) were identified in bitter melon. The expression levels of the mRNAs encoding these eight putative biosynthetic enzymes, as well as the accumulation of lycopene, α-carotene, lutein, 13Z-β-carotene, E-β-carotene, 9Z-β-carotene, β-cryptoxanthin, zeaxanthin, antheraxanthin, and violaxanthin were investigated in different organs from M. charantia as well as in the four different stages of its fruit maturation. Transcripts were found to be constitutively expressed at high levels in the leaves where carotenoids were also found at the highest levels. Collectively, these results indicate that the putative McGGPPS2, McZDS, McLCYB, McLCYE1, McLCYE2, and McCHXB enzymes might be key factors in controlling carotenoid content in bitter melon. In conclusion, the over expression of the carotenoid biosynthetic genes from M. charantia crops to increase the yield of these medically important carotenoids.
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Affiliation(s)
- Do Manh Cuong
- Department of Crop Science, Chungnam National University, 99 Daehak-ro, Yuseong-gu, Daejeon 34134, Republic of Korea
| | - Mariadhas Valan Arasu
- Addiriyah Research Chair for Environmental Studies, Department of Botany and Microbiology, College of Science, King Saud University, P.O. Box 2455, Riyadh 11451, Saudi Arabia
| | - Jin Jeon
- Department of Crop Science, Chungnam National University, 99 Daehak-ro, Yuseong-gu, Daejeon 34134, Republic of Korea
| | - Yun Ji Park
- Department of Crop Science, Chungnam National University, 99 Daehak-ro, Yuseong-gu, Daejeon 34134, Republic of Korea
| | - Soon-Jae Kwon
- Korea Atomic Energy Research Institute, Advanced Radiation Technology Institute, 29 Geumgu-gil, Jeongeup-si, Jeollabuk-do 580-185, Republic of Korea
| | - Naif Abdullah Al-Dhabi
- Addiriyah Research Chair for Environmental Studies, Department of Botany and Microbiology, College of Science, King Saud University, P.O. Box 2455, Riyadh 11451, Saudi Arabia
- Corresponding authors.
| | - Sang Un Park
- Department of Crop Science, Chungnam National University, 99 Daehak-ro, Yuseong-gu, Daejeon 34134, Republic of Korea
- Corresponding authors.
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Molecular Cloning and Characterization of Carotenoid Pathway Genes and Carotenoid Content in Ixeris dentata var. albiflora. Molecules 2017; 22:molecules22091449. [PMID: 28858245 PMCID: PMC6151524 DOI: 10.3390/molecules22091449] [Citation(s) in RCA: 6] [Impact Index Per Article: 0.9] [Reference Citation Analysis] [Abstract] [Key Words] [Track Full Text] [Download PDF] [Figures] [Journal Information] [Subscribe] [Scholar Register] [Received: 08/14/2017] [Revised: 08/26/2017] [Accepted: 08/30/2017] [Indexed: 11/22/2022] Open
Abstract
Ixeris dentata var. albiflora is considered as a potential therapeutic agent against mithridatism, calculous, indigestion, pneumonia, hepatitis, and tumors as well as good seasoned vegetable in Far East countries. Phytoene synthase (PSY), phytoene desaturase (PDS) ξ-carotene desaturase (ZDS), lycopene β-cyclase (LCYB), lycopene ε-cyclase (LCYE), ε-ring carotene hydroxylase (CHXB), and zeaxanthin epoxidase (ZDS) are vital enzymes in the carotenoid biosynthesis pathway. We have examined these seven genes from I. dentata that are participated in carotenoid biosynthesis utilizing an Illumina/Solexa HiSeq 2000 platform. In silico analysis of the seven deduced amino acid sequences were revealed its closest homology with other Asteracea plants. Further, we explored transcript levels and carotenoid accumulation in various organs of I. dentata using quantitative real time PCR and high-performance liquid chromatography, respectively. The highest transcript levels were noticed in the leaf for all the genes while minimal levels were noticed in the root. The maximal carotenoid accumulation was also detected in the leaf. We proposed that these genes expressions are associated with the accumulation of carotenoids. Our findings may suggest the fundamental clues to unravel the molecular insights of carotenoid biosynthesis in various organs of I. dentata.
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Park YJ, Park SY, Valan Arasu M, Al-Dhabi NA, Ahn HG, Kim JK, Park SU. Accumulation of Carotenoids and Metabolic Profiling in Different Cultivars of Tagetes Flowers. Molecules 2017; 22:E313. [PMID: 28218705 PMCID: PMC6155894 DOI: 10.3390/molecules22020313] [Citation(s) in RCA: 32] [Impact Index Per Article: 4.6] [Reference Citation Analysis] [Abstract] [Key Words] [MESH Headings] [Track Full Text] [Download PDF] [Figures] [Journal Information] [Subscribe] [Scholar Register] [Received: 12/11/2016] [Revised: 02/10/2017] [Accepted: 02/11/2017] [Indexed: 11/17/2022] Open
Abstract
Species of Tagetes, which belong to the family Asteraceae show different characteristics including, bloom size, shape, and color; plant size; and leaf shape. In this study, we determined the differences in primary metabolites and carotenoid yields among six cultivars from two Tagetes species, T. erecta and T. patula. In total, we detected seven carotenoids in the examined cultivars: violaxanthin, lutein, zeaxanthin, α-carotene, β-carotene, 9-cis-β-carotene, and 13-cis-β-carotene. In all the cultivars, lutein was the most abundant carotenoid. Furthermore, the contents of each carotenoid in flowers varied depending on the cultivar. Principal component analysis (PCA) facilitated metabolic discrimination between Tagetes cultivars, with the exception of Inca Yellow and Discovery Orange. Moreover, PCA and orthogonal projection to latent structure-discriminant analysis (OPLS-DA) results provided a clear discrimination between T. erecta and T. patula. Primary metabolites, including xylose, citric acid, valine, glycine, and galactose were the main components facilitating separation of the species. Positive relationships were apparent between carbon-rich metabolites, including those of the TCA cycle and sugar metabolism, and carotenoids.
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Affiliation(s)
- Yun Ji Park
- Department of Crop Science, Chungnam National University, 99 Daehak-ro, Yuseong-gu, Daejeon 34134, Korea.
| | - Soo-Yun Park
- National Institute of Agricultural Science, Rural Development Administration, Wanju-gun, Jeollabuk-do 565-851, Korea.
| | - Mariadhas Valan Arasu
- Department of Botany and Microbiology, Addiriyah Chair for Environmental Studies, College of Science, King Saud University, P. O. Box 2455, Riyadh 11451, Saudi Arabia.
| | - Naif Abdullah Al-Dhabi
- Department of Botany and Microbiology, Addiriyah Chair for Environmental Studies, College of Science, King Saud University, P. O. Box 2455, Riyadh 11451, Saudi Arabia.
| | - Hyung-Geun Ahn
- Science & Technology Policy Division, Ministry of Agriculture, Food, and Rural Affairs, Sejong-si 30110, Korea.
| | - Jae Kwang Kim
- Division of Life Sciences and Convergence Research Center for Insect Vectors, Incheon National University, Incheon 406-772, Korea.
| | - Sang Un Park
- Department of Crop Science, Chungnam National University, 99 Daehak-ro, Yuseong-gu, Daejeon 34134, Korea.
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Zeng Y, Li Y, Yang J, Pu X, Du J, Yang X, Yang T, Yang S. Therapeutic Role of Functional Components in Alliums for Preventive Chronic Disease in Human Being. EVIDENCE-BASED COMPLEMENTARY AND ALTERNATIVE MEDICINE : ECAM 2017; 2017:9402849. [PMID: 28261311 PMCID: PMC5316450 DOI: 10.1155/2017/9402849] [Citation(s) in RCA: 55] [Impact Index Per Article: 7.9] [Reference Citation Analysis] [Abstract] [Track Full Text] [Download PDF] [Figures] [Subscribe] [Scholar Register] [Received: 11/24/2016] [Accepted: 01/11/2017] [Indexed: 12/13/2022]
Abstract
Objectives. Functional components in alliums have long been maintained to play a key role in modifying the major risk factors for chronic disease. To obtain a better understanding of alliums for chronic disease prevention, we conducted a systematic review for risk factors and prevention strategies for chronic disease of functional components in alliums, based on a comprehensive English literature search that was conducted using various electronic search databases, especially the PubMed, ISI Web of Science, and CNKI for the period 2007-2016. Allium genus especially garlic, onion, and Chinese chive is rich in organosulfur compounds, quercetin, flavonoids, saponins, and others, which have anticancer, preventive cardiovascular and heart diseases, anti-inflammation, antiobesity, antidiabetes, antioxidants, antimicrobial activity, neuroprotective and immunological effects, and so on. These results support Allium genus; garlic and onion especially may be the promising dietotherapeutic vegetables and organopolysulfides as well as quercetin mechanism in the treatment of chronic diseases. This review may be used as scientific basis for the development of functional food, nutraceuticals, and alternative drugs to improve the chronic diseases.
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Affiliation(s)
- Yawen Zeng
- Biotechnology and Genetic Resources Institute, Yunnan Academy of Agricultural Sciences/Agricultural Biotechnology Key Laboratory of Yunnan Province, Kunming 650205, China
| | - Yuping Li
- Yuxi Agriculture Vocation-Technical College, Yunnan, Yuxi 653106, China
| | - Jiazhen Yang
- Biotechnology and Genetic Resources Institute, Yunnan Academy of Agricultural Sciences/Agricultural Biotechnology Key Laboratory of Yunnan Province, Kunming 650205, China
- Kunming Tiankang Science & Technology Limited Company, Yunnan, Kunming 650231, China
| | - Xiaoying Pu
- Biotechnology and Genetic Resources Institute, Yunnan Academy of Agricultural Sciences/Agricultural Biotechnology Key Laboratory of Yunnan Province, Kunming 650205, China
| | - Juan Du
- Biotechnology and Genetic Resources Institute, Yunnan Academy of Agricultural Sciences/Agricultural Biotechnology Key Laboratory of Yunnan Province, Kunming 650205, China
| | - Xiaomeng Yang
- Biotechnology and Genetic Resources Institute, Yunnan Academy of Agricultural Sciences/Agricultural Biotechnology Key Laboratory of Yunnan Province, Kunming 650205, China
| | - Tao Yang
- Biotechnology and Genetic Resources Institute, Yunnan Academy of Agricultural Sciences/Agricultural Biotechnology Key Laboratory of Yunnan Province, Kunming 650205, China
| | - Shuming Yang
- Biotechnology and Genetic Resources Institute, Yunnan Academy of Agricultural Sciences/Agricultural Biotechnology Key Laboratory of Yunnan Province, Kunming 650205, China
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Tuan PA, Kim YB, Kim JK, Arasu MV, Al-Dhabi NA, Park SU. Molecular characterization of carotenoid biosynthetic genes and carotenoid accumulation in Scutellaria baicalensis Georgi. EXCLI JOURNAL 2014; 14:146-57. [PMID: 26417348 PMCID: PMC4556017 DOI: 10.17179/excli2014-547] [Citation(s) in RCA: 6] [Impact Index Per Article: 0.6] [Reference Citation Analysis] [Abstract] [Key Words] [Download PDF] [Figures] [Subscribe] [Scholar Register] [Received: 08/22/2014] [Accepted: 01/26/2015] [Indexed: 02/03/2023]
Abstract
Scutellaria baicalensis has a wide range of biological activities and has been considered as an important traditional drug in Asia and North America for centuries. A partial-length cDNA clone encoding phytoene synthase (SbPSY) and full-length cDNA clonesencoding phytoene desaturase (SbPDS), ξ-carotene desaturase (SbZDS), β-ring carotene hydroxylase (SbCHXB), and zeaxanthin epoxidase (SbZEP)were identifiedin S. baicalensis. Sequence analyses revealed that these proteins share high identity and conserved domains with their orthologous genes. SbPSY, SbPDS, SbZDS, SbCHXB, and SbZEP were constitutively expressed in the roots, stems, leaves, and flowers of S.baicalensis. SbPSY, SbPDS, and SbZDS were highly expressed in the stems, leaves, and flowers and showed low expression in the roots, where only trace amounts of carotenoids were detected. SbCHXB and SbZEP transcripts were expressed at relatively high levels in the roots, stems, and flowers and were expressed at low levels in the leaves, where carotenoids were mostly distributed. The predominant carotenoids in S.baicalensiswere lutein and β-carotene, with abundant amounts found in the leaves (517.19 and 228.37 μg g-1 dry weight, respectively). Our study on the biosynthesis of carotenoids in S. baicalensis will provide basic data for elucidating the contribution of carotenoids to the considerable medicinal properties of S. baicalensis.
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Affiliation(s)
- Pham Anh Tuan
- Department of Crop Science, Chungnam National University, 99 Daehak-Ro, Yuseong-gu, Daejeon 305-764, Korea
| | - Yeon Bok Kim
- Herbal Crop Research Division, Department of Herbal Crop Research, Bisanro 92, Eumseong, Chungbuk, 369-873, Korea
| | - Jae Kwang Kim
- Division of Life Sciences, College of Life Sciences and Bioengineering, Incheon National University, Incheon 406-772, Korea
| | - Mariadhas Valan Arasu
- Department of Botany and Microbiology, Addiriyah Chair for Environmental Studies, College of Science, King Saud University, P. O. Box 2455, Riyadh 11451, Saudi Arabia
| | - Naif Abdullah Al-Dhabi
- Department of Botany and Microbiology, Addiriyah Chair for Environmental Studies, College of Science, King Saud University, P. O. Box 2455, Riyadh 11451, Saudi Arabia
| | - Sang Un Park
- Department of Crop Science, Chungnam National University, 99 Daehak-Ro, Yuseong-gu, Daejeon 305-764, Korea ; Visiting Professor Program (VPP), King Saud University, P.O. Box 2455, Riyadh 11451, Saudi Arabia
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Li M, Gan Z, Cui Y, Shi C, Shi X. Structure and function characterization of the phytoene desaturase related to the lutein biosynthesis in Chlorella protothecoides CS-41. Mol Biol Rep 2012; 40:3351-61. [PMID: 23271125 DOI: 10.1007/s11033-012-2410-5] [Citation(s) in RCA: 9] [Impact Index Per Article: 0.8] [Reference Citation Analysis] [Abstract] [Track Full Text] [Journal Information] [Subscribe] [Scholar Register] [Received: 09/02/2012] [Accepted: 12/18/2012] [Indexed: 10/27/2022]
Abstract
Phytoene desaturase is the key enzyme involved in the biosynthesis pathway of lutein. The unicellular microalga, Chlorella protothecoides CS-41, had been selected for the heterotrophic production of high concentrations of lutein. In this study, a cDNA copy of the pds gene from C. protothecoides was obtained using the rapid amplification of cDNA ends (RACE) technique. Phylogenetic analysis of the deduced amino acid sequence revealed that the phytoene desaturases derived from the algal family. Expression of the pds gene in Escherichia coli produced a single protein of 61 kDa. The PDS activity of the expressed protein was confirmed by the production of ζ-carotene as the result from the action of the enzyme's desaturation activity, which was identified by high-performance liquid chromatography and heterologous complementation analysis. Using random and site-directed mutagenesis, a single amino acid mutation (N144D) was identified and confirmed. This mutant encodes an inactive enzyme, which implies that amino acid 144 is crutial to the activity of the PDS enzyme. Therefore, by gene cloning and expression in prokaryotic cells, the gene for ζ-carotene production or as part of the biosynthetic pathway of lutein had been characterized from Chlorella protothecoides CS-41.
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Affiliation(s)
- Meiya Li
- Department of Food Science & Technology, MOST-USDA Joint Research Center for Food Safety and Bor Luh Food Safety Center, School of Agriculture and Biology, Shanghai Jiao Tong University, Shanghai 200240, People's Republic of China
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Liu X, Gai Z, Tao F, Tang H, Xu P. Carotenoids play a positive role in the degradation of heterocycles by Sphingobium yanoikuyae. PLoS One 2012; 7:e39522. [PMID: 22745775 PMCID: PMC3380023 DOI: 10.1371/journal.pone.0039522] [Citation(s) in RCA: 15] [Impact Index Per Article: 1.3] [Reference Citation Analysis] [Abstract] [MESH Headings] [Track Full Text] [Download PDF] [Figures] [Journal Information] [Subscribe] [Scholar Register] [Received: 02/14/2012] [Accepted: 05/22/2012] [Indexed: 01/01/2023] Open
Abstract
BACKGROUND Microbial oxidative degradation is a potential way of removing pollutants such as heterocycles from the environment. During this process, reactive oxygen species or other oxidants are inevitably produced, and may cause damage to DNA, proteins, and membranes, thereby decreasing the degradation rate. Carotenoids can serve as membrane-integrated antioxidants, protecting cells from oxidative stress. FINDINGS Several genes involved in the carotenoid biosynthetic pathway were cloned and characterized from a carbazole-degrading bacterium Sphingobium yanoikuyae XLDN2-5. In addition, a yellow-pigmented carotenoid synthesized by strain XLDN2-5 was identified as zeaxanthin that was synthesized from β-carotene through β-cryptoxanthin. The amounts of zeaxanthin and hydrogen peroxide produced were significantly and simultaneously enhanced during the biodegradation of heterocycles (carbazole < carbazole + benzothiophene < carbazole + dibenzothiophene). These higher production levels were consistent with the transcriptional increase of the gene encoding phytoene desaturase, one of the key enzymes for carotenoid biosynthesis. CONCLUSIONS/SIGNIFICANCE Sphingobium yanoikuyae XLDN2-5 can enhance the synthesis of zeaxanthin, one of the carotenoids, which may modulate membrane fluidity and defense against intracellular oxidative stress. To our knowledge, this is the first report on the positive role of carotenoids in the biodegradation of heterocycles, while elucidating the carotenoid biosynthetic pathway in the Sphingobium genus.
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Affiliation(s)
- Xiaorui Liu
- State Key Laboratory of Microbial Metabolism & School of Life Sciences and Biotechnology, Shanghai Jiao Tong University, Shanghai, People′s Republic of China
| | - Zhonghui Gai
- State Key Laboratory of Microbial Metabolism & School of Life Sciences and Biotechnology, Shanghai Jiao Tong University, Shanghai, People′s Republic of China
| | - Fei Tao
- State Key Laboratory of Microbial Metabolism & School of Life Sciences and Biotechnology, Shanghai Jiao Tong University, Shanghai, People′s Republic of China
| | - Hongzhi Tang
- State Key Laboratory of Microbial Metabolism & School of Life Sciences and Biotechnology, Shanghai Jiao Tong University, Shanghai, People′s Republic of China
| | - Ping Xu
- State Key Laboratory of Microbial Metabolism & School of Life Sciences and Biotechnology, Shanghai Jiao Tong University, Shanghai, People′s Republic of China
- * E-mail:
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