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Monterisi S, Garcia-Perez P, Buffagni V, Zuluaga MYA, Ciriello M, Formisano L, El-Nakhel C, Cardarelli M, Colla G, Rouphael Y, Cristofano F, Cesco S, Lucini L, Pii Y. Unravelling the biostimulant activity of a protein hydrolysate in lettuce plants under optimal and low N availability: a multi-omics approach. PHYSIOLOGIA PLANTARUM 2024; 176:e14357. [PMID: 38775128 DOI: 10.1111/ppl.14357] [Citation(s) in RCA: 0] [Impact Index Per Article: 0] [Reference Citation Analysis] [Abstract] [MESH Headings] [Grants] [Track Full Text] [Subscribe] [Scholar Register] [Received: 11/06/2023] [Revised: 03/26/2024] [Accepted: 04/17/2024] [Indexed: 08/24/2024]
Abstract
The application of protein hydrolysates (PH) biostimulants is considered a promising approach to promote crop growth and resilience against abiotic stresses. Nevertheless, PHs bioactivity depends on both the raw material used for their preparation and the molecular fraction applied. The present research aimed at investigating the molecular mechanisms triggered by applying a PH and its fractions on plants subjected to nitrogen limitations. To this objective, an integrated transcriptomic-metabolomic approach was used to assess lettuce plants grown under different nitrogen levels and treated with either the commercial PH Vegamin® or its molecular fractions PH1(>10 kDa), PH2 (1-10 kDa) and PH3 (<1 kDa). Regardless of nitrogen provision, biostimulant application enhanced lettuce biomass, likely through a hormone-like activity. This was confirmed by the modulation of genes involved in auxin and cytokinin synthesis, mirrored by an increase in the metabolic levels of these hormones. Consistently, PH and PH3 upregulated genes involved in cell wall growth and plasticity. Furthermore, the accumulation of specific metabolites suggested the activation of a multifaceted antioxidant machinery. Notwithstanding, the modulation of stress-response transcription factors and genes involved in detoxification processes was observed. The coordinated action of these molecular entities might underpin the increased resilience of lettuce plants against nitrogen-limiting conditions. In conclusion, integrating omics techniques allowed the elucidation of mechanistic aspects underlying PH bioactivity in crops. Most importantly, the comparison of PH with its fraction PH3 showed that, except for a few peculiarities, the effects induced were equivalent, suggesting that the highest bioactivity was ascribable to the lightest molecular fraction.
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Affiliation(s)
- Sonia Monterisi
- Faculty of Agricultural, Environmental and Food Sciences, Free University of Bozen/Bolzano, Bolzano, Italy
| | - Pascual Garcia-Perez
- Department for Sustainable Food Process, Università Cattolica del Sacro Cuore, Piacenza, Italy
| | - Valentina Buffagni
- Department for Sustainable Food Process, Università Cattolica del Sacro Cuore, Piacenza, Italy
| | | | - Michele Ciriello
- Department of Agricultural Sciences, University of Naples Federico II, Portici, Italy
| | - Luigi Formisano
- Department of Agricultural Sciences, University of Naples Federico II, Portici, Italy
| | - Christophe El-Nakhel
- Department of Agricultural Sciences, University of Naples Federico II, Portici, Italy
| | | | - Giuseppe Colla
- Department of Agriculture and Forest Sciences, University of Tuscia, Viterbo, Italy
| | - Youssef Rouphael
- Department of Agricultural Sciences, University of Naples Federico II, Portici, Italy
| | - Francesco Cristofano
- Department of Agricultural Sciences, University of Naples Federico II, Portici, Italy
| | - Stefano Cesco
- Faculty of Agricultural, Environmental and Food Sciences, Free University of Bozen/Bolzano, Bolzano, Italy
| | - Luigi Lucini
- Department for Sustainable Food Process, Università Cattolica del Sacro Cuore, Piacenza, Italy
| | - Youry Pii
- Faculty of Agricultural, Environmental and Food Sciences, Free University of Bozen/Bolzano, Bolzano, Italy
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Simoni S, Vangelisti A, Clemente C, Usai G, Santin M, Ventimiglia M, Mascagni F, Natali L, Angelini LG, Cavallini A, Tavarini S, Giordani T. Transcriptomic Analyses Reveal Insights into the Shared Regulatory Network of Phenolic Compounds and Steviol Glycosides in Stevia rebaudiana. Int J Mol Sci 2024; 25:2136. [PMID: 38396813 PMCID: PMC10889303 DOI: 10.3390/ijms25042136] [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: 01/10/2024] [Revised: 02/02/2024] [Accepted: 02/07/2024] [Indexed: 02/25/2024] Open
Abstract
Stevia rebaudiana (Bertoni) is a highly valuable crop for the steviol glycoside content in its leaves, which are no-calorie sweeteners hundreds of times more potent than sucrose. The presence of health-promoting phenolic compounds, particularly flavonoids, in the leaf of S. rebaudiana adds further nutritional value to this crop. Although all these secondary metabolites are highly desirable in S. rebaudiana leaves, the genes regulating the biosynthesis of phenolic compounds and the shared gene network between the regulation of biosynthesis of steviol glycosides and phenolic compounds still need to be investigated in this species. To identify putative candidate genes involved in the synergistic regulation of steviol glycosides and phenolic compounds, four genotypes with different contents of these compounds were selected for a pairwise comparison RNA-seq analysis, yielding 1136 differentially expressed genes. Genes that highly correlate with both steviol glycosides and phenolic compound accumulation in the four genotypes of S. rebaudiana were identified using the weighted gene co-expression network analysis. The presence of UDP-glycosyltransferases 76G1, 76H1, 85C1, and 91A1, and several genes associated with the phenylpropanoid pathway, including peroxidase, caffeoyl-CoA O-methyltransferase, and malonyl-coenzyme A:anthocyanin 3-O-glucoside-6″-O-malonyltransferase, along with 21 transcription factors like SCL3, WRK11, and MYB111, implied an extensive and synergistic regulatory network involved in enhancing the production of such compounds in S. rebaudiana leaves. In conclusion, this work identified a variety of putative candidate genes involved in the biosynthesis and regulation of particular steviol glycosides and phenolic compounds that will be useful in gene editing strategies for increasing and steering the production of such compounds in S. rebaudiana as well as in other species.
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Affiliation(s)
- Samuel Simoni
- Department of Agriculture, Food and Environment (DAFE), University of Pisa, Via del Borghetto, 80, 56124 Pisa, Italy (C.C.); (M.S.); (M.V.); (S.T.)
| | - Alberto Vangelisti
- Department of Agriculture, Food and Environment (DAFE), University of Pisa, Via del Borghetto, 80, 56124 Pisa, Italy (C.C.); (M.S.); (M.V.); (S.T.)
| | - Clarissa Clemente
- Department of Agriculture, Food and Environment (DAFE), University of Pisa, Via del Borghetto, 80, 56124 Pisa, Italy (C.C.); (M.S.); (M.V.); (S.T.)
| | - Gabriele Usai
- Department of Agriculture, Food and Environment (DAFE), University of Pisa, Via del Borghetto, 80, 56124 Pisa, Italy (C.C.); (M.S.); (M.V.); (S.T.)
| | - Marco Santin
- Department of Agriculture, Food and Environment (DAFE), University of Pisa, Via del Borghetto, 80, 56124 Pisa, Italy (C.C.); (M.S.); (M.V.); (S.T.)
| | - Maria Ventimiglia
- Department of Agriculture, Food and Environment (DAFE), University of Pisa, Via del Borghetto, 80, 56124 Pisa, Italy (C.C.); (M.S.); (M.V.); (S.T.)
| | - Flavia Mascagni
- Department of Agriculture, Food and Environment (DAFE), University of Pisa, Via del Borghetto, 80, 56124 Pisa, Italy (C.C.); (M.S.); (M.V.); (S.T.)
| | - Lucia Natali
- Department of Agriculture, Food and Environment (DAFE), University of Pisa, Via del Borghetto, 80, 56124 Pisa, Italy (C.C.); (M.S.); (M.V.); (S.T.)
| | - Luciana G. Angelini
- Department of Agriculture, Food and Environment (DAFE), University of Pisa, Via del Borghetto, 80, 56124 Pisa, Italy (C.C.); (M.S.); (M.V.); (S.T.)
- Interdepartmental Research Centre “Nutraceuticals and Food for Health—NUTRAFOOD”, University of Pisa, Via del Borghetto, 80, 56124 Pisa, Italy
| | - Andrea Cavallini
- Department of Agriculture, Food and Environment (DAFE), University of Pisa, Via del Borghetto, 80, 56124 Pisa, Italy (C.C.); (M.S.); (M.V.); (S.T.)
| | - Silvia Tavarini
- Department of Agriculture, Food and Environment (DAFE), University of Pisa, Via del Borghetto, 80, 56124 Pisa, Italy (C.C.); (M.S.); (M.V.); (S.T.)
- Interdepartmental Research Centre “Nutraceuticals and Food for Health—NUTRAFOOD”, University of Pisa, Via del Borghetto, 80, 56124 Pisa, Italy
| | - Tommaso Giordani
- Department of Agriculture, Food and Environment (DAFE), University of Pisa, Via del Borghetto, 80, 56124 Pisa, Italy (C.C.); (M.S.); (M.V.); (S.T.)
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Biswas P, Kumari A, Modi A, Kumar N. Improvement and regulation of steviol glycoside biosynthesis in Stevia rebaudiana Bertoni. Gene 2024; 891:147809. [PMID: 37722610 DOI: 10.1016/j.gene.2023.147809] [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: 06/08/2023] [Revised: 09/13/2023] [Accepted: 09/15/2023] [Indexed: 09/20/2023]
Abstract
Stevia rebaudiana Bertoni is a natural sweetener plant that is progressively used not only for its sweetening properties but also for its medicinal properties. The plant contains steviol glycoside (SG) which is reported to be up to 300 times sweeter than sucrose. The plant is said to have no side effects on human health and has been approved by FDA. On the basis of previous studies and available databases, this review discusses the extensive understanding of the different approaches for enhancements of SG in S. rebaudiana. To improve the SG biosynthesis, application of different stress, elicitors, induction of polyploidy, cell culture, genetic engineering, and transcriptomic approaches have been addressed. A brief discussion about the cloning and characterization of important genes of the metabolic pathway of SG biosynthesis is also discussed along with various metabolic engineering pathways viz. methylerythritol 4- phosphate (MEP) and mevalonate (MVA) pathways. This review paper also discusses the different aspects as well as the effects of various nanoparticles on S. rebaudiana growth and development, as well as SG biosynthesis.
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Affiliation(s)
- Pritom Biswas
- Department of Biotechnology, Central University of South Bihar, Gaya 824236, Bihar, India
| | - Ankita Kumari
- Department of Biotechnology, Central University of South Bihar, Gaya 824236, Bihar, India
| | - Arpan Modi
- Institute of Plant Science, Volcani Center, ARO, Rishon LeZion, Israel
| | - Nitish Kumar
- Department of Biotechnology, Central University of South Bihar, Gaya 824236, Bihar, India.
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Kurek JM, Mikołajczyk-Stecyna J, Krejpcio Z. Steviol glycosides from Stevia rebaudiana Bertoni mitigate lipid metabolism abnormalities in diabetes by modulating selected gene expression - An in vivo study. Biomed Pharmacother 2023; 166:115424. [PMID: 37677968 DOI: 10.1016/j.biopha.2023.115424] [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: 07/05/2023] [Revised: 08/29/2023] [Accepted: 08/30/2023] [Indexed: 09/09/2023] Open
Abstract
In diabetes, in parallel to hyperglycaemia, elevated serum lipids are also diagnosed, representing a high-risk factor for coronary heart disease and cardiovascular complications. The objective of this study was to unravel the mechanisms that underlie the potential of steviol glycosides (stevioside or rebaudioside A) administered at two doses (500 or 2500 mg/kg body weight for 5 weeks) to regulate lipid metabolism. In this paper, the expression of selected genes responsible for glucose and lipid metabolism (Glut4, Pparγ, Cebpa, Fasn, Lpl and Egr1) in the peripheral tissues (adipose, liver and muscle tissue) was determined using quantitative real-time PCR method. It was found that the supplementation of steviol glycosides affected the expression of Glut4, Cebpa and Fasn genes, depending on the type of the glycoside and its dose, as well as the type of tissue, whish in part may explain the lipid-regulatory potential of steviol glycosides in hyperglycaemic conditions. Nevertheless, more in-depth studies, including human trials, are needed to confirm these effects, before steviol glycosides can be used in the therapy of type 2 diabetes.
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Affiliation(s)
- Jakub Michał Kurek
- Department of Human Nutrition and Dietetics, Poznań University of Life Sciences, Wojska Polskiego 31, 60-624 Poznań, Poland.
| | - Joanna Mikołajczyk-Stecyna
- Department of Human Nutrition and Dietetics, Poznań University of Life Sciences, Wojska Polskiego 31, 60-624 Poznań, Poland.
| | - Zbigniew Krejpcio
- Department of Human Nutrition and Dietetics, Poznań University of Life Sciences, Wojska Polskiego 31, 60-624 Poznań, Poland.
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Ghose AK, Abdullah SNA, Md Hatta MA, Megat Wahab PE. DNA Free CRISPR/DCAS9 Based Transcriptional Activation System for UGT76G1 Gene in Stevia rebaudiana Bertoni Protoplasts. PLANTS (BASEL, SWITZERLAND) 2022; 11:2393. [PMID: 36145794 PMCID: PMC9501275 DOI: 10.3390/plants11182393] [Citation(s) in RCA: 0] [Impact Index Per Article: 0] [Reference Citation Analysis] [Abstract] [Key Words] [Track Full Text] [Figures] [Subscribe] [Scholar Register] [Received: 06/28/2022] [Revised: 08/23/2022] [Accepted: 09/01/2022] [Indexed: 06/16/2023]
Abstract
The UDP-glycosyltransferase 76G1 (UGT76G1) is responsible for the conversion of stevioside to rebaudioside A. Four single guide RNAs (sgRNAs) were designed from the UGT76G1 proximal promoter region of stevia by using the online-based tool, benchling. The dCas9 fused with VP64 as a transcriptional activation domain (TAD) was produced and purified for the formation of ribonucleoproteins (RNPs) by mixing with the in vitro transcribed sgRNAs. Protoplast yield was the highest from leaf mesophyll of in vitro grown stevia plantlets (3.16 × 106/g of FW) using ES5 (1.25% cellulase R-10 and 0.75% macerozyme R-10). The RNPs were delivered into the isolated protoplasts through the Polyethylene glycol (PEG)-mediated transfection method. The highest endogenous activation of the UGT76G1 gene was detected at 27.51-fold after 24 h of transfection with RNP30 consisting of CRISPR/dCas9-TAD with sgRNA30 and a similar activation level was obtained using RNP18, RNP33, and RNP34, produced using sgRNA18, sgRNA33, and sgRNA34, respectively. Activation of UGT76G1 by RNP18 led to a significant increase in the expression of the rate-limiting enzyme UGT85C2 by 2.37-fold and there was an increasing trend in the expression of UGT85C2 using RNP30, RNP33, and RNP34. Successful application of CRISPR/dCas9-TAD RNP in activating specific genes can avoid the negative integration effects of introduced DNA in the host genome.
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Affiliation(s)
- Asish Kumar Ghose
- Laboratory of Agronomy and Sustainable Crop Protection, Institute of Plantation Studies, Universiti Putra Malaysia, Serdang 43400, Selangor, Malaysia
- Biotechnology Division, Bangladesh Sugarcrop Research Institute, Ishurdi, Pabna 6620, Bangladesh
| | - Siti Nor Akmar Abdullah
- Laboratory of Agronomy and Sustainable Crop Protection, Institute of Plantation Studies, Universiti Putra Malaysia, Serdang 43400, Selangor, Malaysia
- Department of Agriculture Technology, Faculty of Agriculture, Universiti Putra Malaysia, Serdang 43400, Selangor, Malaysia
| | - Muhammad Asyraf Md Hatta
- Department of Agriculture Technology, Faculty of Agriculture, Universiti Putra Malaysia, Serdang 43400, Selangor, Malaysia
| | - Puteri Edaroyati Megat Wahab
- Department of Crop Science, Faculty of Agriculture, Universiti Putra Malaysia, Serdang 43400, Selangor, Malaysia
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Srivastava V, Chaturvedi R. An interdisciplinary approach towards sustainable and higher steviol glycoside production from in vitro cultures of Stevia rebaudiana. J Biotechnol 2022; 358:76-91. [PMID: 36075450 DOI: 10.1016/j.jbiotec.2022.08.018] [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: 03/30/2022] [Revised: 07/25/2022] [Accepted: 08/30/2022] [Indexed: 10/31/2022]
Abstract
Stevia rebaudiana is one of the vastly acclaimed commercial plant in the world and belongs to Asteraceae family. The exclusive advantage of Stevia over artificial sweeteners is impeccable and targets its potentiality to the presence of diterpene glycosides. Moreover, the flaunting sweetness of steviol glycosides with associated medicinal benefits, turns the plant to be one of the most economic assets, globally. As compared to vegetative propagation through stem-cuttings, plant tissue culture is the most suitable approach in obtaining true-to-type plants of superior quality. During last few decades, significant in vitro propagation methods have been developed and still the research is ongoing. The present review discusses the tissue culture perspectives of S. rebaudiana, primarily focusing on the mineral nutrition, growth regulators and other accessory factors, motioning the optimum growth and development of the plant. Another crucial aspect is the generation of sweeter varieties in order to reduce the bitter-off taste, which is noticed after the consumption of the leaves. The in vitro cultures pose an efficient alternative system for production of steviol glycosides, with higher rebaudioside(s) content. Moreover, the review also covers the recent approaches pertaining to scale-up studies and genome editing perspectives.
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Affiliation(s)
- Vartika Srivastava
- Department of Biosciences and Bioengineering, Indian Institute of Technology Guwahati, Guwahati 781039, Assam, India
| | - Rakhi Chaturvedi
- Department of Biosciences and Bioengineering, Indian Institute of Technology Guwahati, Guwahati 781039, Assam, India.
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Shahnawaz, Pandey DK, Konjengbam M, Dwivedi P, Kaur P, Kumar V, Ray D, Ray P, Nazir R, Kaur H, Parida S, Dey A. Biotechnological interventions of in vitro propagation and production of valuable secondary metabolites in Stevia rebaudiana. Appl Microbiol Biotechnol 2021; 105:8593-8614. [PMID: 34708277 DOI: 10.1007/s00253-021-11580-9] [Citation(s) in RCA: 2] [Impact Index Per Article: 0.7] [Reference Citation Analysis] [Abstract] [Key Words] [Track Full Text] [Journal Information] [Subscribe] [Scholar Register] [Received: 05/30/2021] [Revised: 09/08/2021] [Accepted: 09/10/2021] [Indexed: 10/20/2022]
Abstract
Plant cell and tissue culture makes provision of a sustainable and nature-friendly strategy for the production of secondary metabolites, and modern progress in gene editing and genome engineering provides novel possibilities to improve both the qualitative and quantitative aspects of such phytochemicals. The ever-expanding quest for plant-based medicine to treat diabetes facilitates large-scale cultivation of Stevia rebaudiana to enhance the yield of its much-coveted low-calorie sweetener glycosides. The potential to process stevia as a "natural" product should enhance the acceptance of steviosides as a natural calorie-free sweetener especially suitable for use in diabetic and weight control drinks and foods. Besides sweetener agents, S. rebaudiana is a potent source of many antioxidant compounds and is used to cure immunodeficiencies, neurologic disorders, inflammation, diabetes mellitus, Parkinson's disease, and Alzheimer's disease. This comprehensive review presents the research outcomes of the many biotechnological interventions implicated to upscale the yield of steviol glycosides and its derivatives in in vitro cell, callus, tissue, and organ cultures with notes on the use of bioreactor and genetic engineering in relation to the production of these valuable compounds in S. rebaudiana. KEY POINTS: • Critical and updated assessment on sustainable production of steviol glycosides from Stevia rebaudiana. • In vitro propagation of S. rebaudiana and elicitation of steviol glycosides production. • Genetic fidelity and diversity assessment of S. rebaudiana using molecular markers.
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Affiliation(s)
- Shahnawaz
- Department of Biotechnology, Lovely Professional University, Phagwara, Punjab, India
| | - Devendra Kumar Pandey
- Department of Biotechnology, Lovely Professional University, Phagwara, Punjab, India.
| | | | - Padmanabh Dwivedi
- Department of Plant Physiology, Institute of Agricultural Sciences, Banaras Hindu University, Varanasi, Uttar Pradesh, India
| | - Prabhjot Kaur
- Department of Biotechnology, Lovely Professional University, Phagwara, Punjab, India
| | - Vijay Kumar
- Department of Biotechnology, Lovely Professional University, Phagwara, Punjab, India
| | - Durga Ray
- Department of Microbiology, St. Aloysius College, Jabalpur, Madhya Pradesh, India
| | - Puja Ray
- Department of Life Sciences, Presidency University, Kolkata, West Bengal, India
| | - Romaan Nazir
- Department of Biotechnology, Lovely Professional University, Phagwara, Punjab, India
| | - Harmeet Kaur
- Department of Biotechnology, Lovely Professional University, Phagwara, Punjab, India
| | - Sidharth Parida
- Department of Biotechnology, MITS School of Biotechnology, Affiliated to Utkal University, Bhubaneswar, Odisha, India
| | - Abhijit Dey
- Department of Life Sciences, Presidency University, Kolkata, West Bengal, India.
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Wang Y, Sun X, Jia X, Zhu L, Yin H. Comparative transcriptomic of Stevia rebaudiana provides insight into rebaudioside D and rebaudioside M biosynthesis. PLANT PHYSIOLOGY AND BIOCHEMISTRY : PPB 2021; 167:541-549. [PMID: 34425398 DOI: 10.1016/j.plaphy.2021.08.028] [Citation(s) in RCA: 5] [Impact Index Per Article: 1.7] [Reference Citation Analysis] [Abstract] [Key Words] [MESH Headings] [Track Full Text] [Subscribe] [Scholar Register] [Received: 06/29/2021] [Revised: 08/13/2021] [Accepted: 08/15/2021] [Indexed: 06/13/2023]
Abstract
Rebaudioside D (Reb D) and rebaudioside M (Reb M) are commercially important low/no-calorie natural sweeteners. However, they are present in a minor proportion of all steviol glycosides (SGs) in Stevia rebaudiana Bertoni (S. rebaudiana). Strain-dependent deviation in Reb D and Reb M biosynthesis is one key breach for breeding of S. rebaudiana, which has not been studied at the transcriptional level. Herein, five different S. rebaudiana varieties with distinct SGs contents, one cultivar having high stevioside content (HST), one cultivar having high Reb A content (HRA) and three cultivars having high Reb D and Reb M content (HDM1, HDM2, HDM3), were selected for RNA-seq analysis. In total, 131,655 de novo assembled unigenes were found in the RNA-seq data. According to Reb D and Reb M content divergence of S. rebaudiana accessions, 2186 differentially expressed genes (DEGs) were selected as potential genes related to Reb D and Reb M biosynthesis. Weighted Gene Co-expression Network Analysis (WGCNA) was used to explore the genes associated with the Reb D and Reb M biosynthesis. The unigenes from the positively associated turquoise module formed a layered co-expression network. There are 7 UDP-dependent glycosyltransferases (UGT) and 76 transcription factors (TFs) distributing at different regions which represented varying coherence of Reb D and Reb M biosynthesis. Particularly, two TFs having a strong correlation with two UGTs in the network were also discovered. The present study provided a comprehensive insight into networks for regulation of Reb D and Reb M contents in S. rebaudiana.
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Affiliation(s)
- Yu Wang
- Dalian Engineering Research Center for Carbohydrate Agricultural Preparations, Liaoning Provincial Key Laboratory of Carbohydrates, Dalian Institute of Chemical Physics, Chinese Academy of Sciences, Dalian, 116023, China; University of Chinese Academy of Sciences, Beijing, 100049, China.
| | - Xue Sun
- Dalian Engineering Research Center for Carbohydrate Agricultural Preparations, Liaoning Provincial Key Laboratory of Carbohydrates, Dalian Institute of Chemical Physics, Chinese Academy of Sciences, Dalian, 116023, China.
| | - Xiaochen Jia
- Dalian Engineering Research Center for Carbohydrate Agricultural Preparations, Liaoning Provincial Key Laboratory of Carbohydrates, Dalian Institute of Chemical Physics, Chinese Academy of Sciences, Dalian, 116023, China.
| | - Liping Zhu
- Zhucheng Haotian Pharm Co., Ltd, Shandong, 262200, China; Dongtai Hirye Biotechnology Co., Ltd, Jiangsu, 224200, China.
| | - Heng Yin
- Dalian Engineering Research Center for Carbohydrate Agricultural Preparations, Liaoning Provincial Key Laboratory of Carbohydrates, Dalian Institute of Chemical Physics, Chinese Academy of Sciences, Dalian, 116023, China; University of Chinese Academy of Sciences, Beijing, 100049, China.
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Sheikhalipour M, Esmaielpour B, Gohari G, Haghighi M, Jafari H, Farhadi H, Kulak M, Kalisz A. Salt Stress Mitigation via the Foliar Application of Chitosan-Functionalized Selenium and Anatase Titanium Dioxide Nanoparticles in Stevia ( Stevia rebaudiana Bertoni). Molecules 2021; 26:molecules26134090. [PMID: 34279430 PMCID: PMC8271991 DOI: 10.3390/molecules26134090] [Citation(s) in RCA: 14] [Impact Index Per Article: 4.7] [Reference Citation Analysis] [Abstract] [Key Words] [MESH Headings] [Download PDF] [Figures] [Journal Information] [Subscribe] [Scholar Register] [Received: 05/02/2021] [Revised: 06/07/2021] [Accepted: 06/30/2021] [Indexed: 11/24/2022] Open
Abstract
High salt levels are one of the significant and major limiting factors on crop yield and productivity. Out of the available attempts made against high salt levels, engineered nanoparticles (NPs) have been widely employed and considered as effective strategies in this regard. Of these NPs, titanium dioxide nanoparticles (TiO2 NPs) and selenium functionalized using chitosan nanoparticles (Cs–Se NPs) were applied for a quite number of plants, but their potential roles for alleviating the adverse effects of salinity on stevia remains unclear. Stevia (Stevia rebaudiana Bertoni) is one of the reputed medicinal plants due to their diterpenoid steviol glycosides (stevioside and rebaudioside A). For this reason, the current study was designed to investigate the potential of TiO2 NPs (0, 100 and 200 mg L−1) and Cs–Se NPs (0, 10 and 20 mg L−1) to alleviate salt stress (0, 50 and 100 mM NaCl) in stevia. The findings of the study revealed that salinity decreased the growth and photosynthetic traits but resulted in substantial cell damage through increasing H2O2 and MDA content, as well as electrolyte leakage (EL). However, the application of TiO2 NPs (100 mg L−1) and Cs–Se NPs (20 mg L−1) increased the growth, photosynthetic performance and activity of antioxidant enzymes, and decreased the contents of H2O2, MDA and EL under the saline conditions. In addition to the enhanced growth and physiological performance of the plant, the essential oil content was also increased with the treatments of TiO2 (100 mg L−1) and Cs–Se NPs (20 mg L−1). In addition, the tested NPs treatments increased the concentration of stevioside (in the non-saline condition and under salinity stress) and rebaudioside A (under the salinity conditions) in stevia plants. Overall, the current findings suggest that especially 100 mg L−1 TiO2 NPs and 20 mg L−1 Cs–Se could be considered as promising agents in combating high levels of salinity in the case of stevia.
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Affiliation(s)
- Morteza Sheikhalipour
- Department of Horticulture, Faculty of Horticulture, University of Mohagheh Ardabili, Ardabil 13131-56199, Iran; (M.S.); (B.E.)
| | - Behrooz Esmaielpour
- Department of Horticulture, Faculty of Horticulture, University of Mohagheh Ardabili, Ardabil 13131-56199, Iran; (M.S.); (B.E.)
| | - Gholamreza Gohari
- Department of Horticulture, Faculty of Horticulture, University of Maragheh, Maragheh 55181-83111, Iran;
- Correspondence: (G.G.); (A.K.)
| | - Maryam Haghighi
- Department of Horticulture, College of Agriculture, Isfahan University of Technology, Isfahan 84156-83111, Iran;
| | - Hessam Jafari
- Department of Organic Chemistry, Faculty of Chemistry, University of Tabriz, Tabriz 51666-16471, Iran;
| | - Habib Farhadi
- Department of Horticulture, Faculty of Horticulture, University of Maragheh, Maragheh 55181-83111, Iran;
| | - Muhittin Kulak
- Department of Herbal and Animal Production, Vocational School of Technical Sciences, Igdir University, Igdir 76000, Turkey;
| | - Andrzej Kalisz
- Department of Horticulture, Faculty of Biotechnology and Horticulture, University of Agriculture in Krakow, 31-120 Krakow, Poland
- Correspondence: (G.G.); (A.K.)
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Differential UGT76G1 and start codon-based characterization of six stevia germlines in Egypt. BIOCATALYSIS AND AGRICULTURAL BIOTECHNOLOGY 2021. [DOI: 10.1016/j.bcab.2021.101981] [Citation(s) in RCA: 1] [Impact Index Per Article: 0.3] [Reference Citation Analysis] [Track Full Text] [Journal Information] [Subscribe] [Scholar Register] [Indexed: 01/23/2023]
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Pirgozliev V, Kljak K, Whiting IM, Rose SP, Mansbridge SC, Enchev S, Atanasov A, Stringhini JH. Feeding dry stevia leaf (Stevia rebaudiana) or xylanase improves the hepatic antioxidative status of broiler chickens. Res Vet Sci 2021; 136:227-229. [PMID: 33689879 DOI: 10.1016/j.rvsc.2021.03.001] [Citation(s) in RCA: 6] [Impact Index Per Article: 2.0] [Reference Citation Analysis] [Abstract] [Key Words] [Track Full Text] [Journal Information] [Subscribe] [Scholar Register] [Received: 06/22/2020] [Revised: 02/18/2021] [Accepted: 03/01/2021] [Indexed: 10/22/2022]
Abstract
Four diets, formulated with and without stevia and with and without exogenous xylanase, following a 2 × 2 factorial design, were prepared. Each diet was fed ad libitum to birds in eight pens (three birds in each pen) in a randomised block design. It was found that birds fed xylanase grew faster, used the feed more efficiently and had an increased concentration of hepatic α-tocopherol and vitamin E concentrations (P < 0.05). Feeding stevia did not affect growth performance (P > 0.05), but increased hepatic CoQ10 (P = 0.05), lutein, zeaxanthin and total carotenoids (P < 0.001) concentrations. There were no dietary stevia by xylanase interactions (P > 0.05) for any of the studied variables. The results showed that alone, dietary stevia and dietary xylanase can improve the antioxidative status of birds through enhancing dietary antioxidant availability.
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Affiliation(s)
- Vasil Pirgozliev
- National Institute of Poultry Husbandry, Harper Adams University, Shropshire TF10 8NB, UK.
| | - Kristina Kljak
- Department of Animal Nutrition, Faculty of Agriculture, University of Zagreb, Croatia
| | | | - Stephen Paul Rose
- National Institute of Poultry Husbandry, Harper Adams University, Shropshire TF10 8NB, UK
| | | | | | - Atanas Atanasov
- Ludwig Boltzmann Institute for Digital Health and Patient Safety, Medical University of Vienna, 1090 Vienna, Austria; Institute of Genetics and Animal Biotechnology of the Polish Academy of Sciences, 05-552 Magdalenka, Poland; Institute of Neurobiology, Bulgarian Academy of Sciences, 1113 Sofia, Bulgaria; Department of Pharmacognosy, University of Vienna, 1090 Vienna, Austria
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12
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Wang Z, Jia H, Yu H, Wang T, Yang B. Gene Analysis of Genetically Modified Soybean Lectin Based on Fluorescence Quantitative PCR. Biochem Genet 2021; 59:185-201. [PMID: 32979140 DOI: 10.1007/s10528-020-09998-3] [Citation(s) in RCA: 2] [Impact Index Per Article: 0.7] [Reference Citation Analysis] [Abstract] [Key Words] [MESH Headings] [Grants] [Track Full Text] [Journal Information] [Subscribe] [Scholar Register] [Received: 06/16/2020] [Accepted: 09/18/2020] [Indexed: 11/26/2022]
Abstract
Considering that the genetically modified soybean lectin gene is affected by the gene type, to improve the stability of the genetically modified soybean lectin gene, a method based on fluorescence quantitative PCR to analyze the genetic characteristics of the genetically modified soybean lectin was proposed. The common soybean varieties, Wangshuibai and Huangdou No. 3 were selected as materials for tissue-specific expression analysis. Under the background conditions of analyzing the genetically modified soybean lectin genes, fluorescent quantitative PCR was applied to the analysis of genetic characteristics. The characteristics of the genetically modified soybean lectin gene were analyzed in terms of location characteristics and expression characteristics. The results showed that the soybean lectin gene has a complex functional mechanism and may participate in a variety of stress-related regulatory or signal transduction pathways in different ways; Lectin2.1 transcripts are expressed in abundance in glume and lemma in seedling tips, Lectin2.2 was mainly expressed in the roots, and a small amount was expressed in leaves and lemma; Lectin2.1 and Lectin2.2 are highly similar in nucleic acid and amino acid composition, and have similar subcellular localization characteristics.
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Affiliation(s)
- Zhaohui Wang
- College of Food Science and Engineering, Jilin Agricultural University, Changchun, 130118, China
| | - Hongyu Jia
- College of Food Science and Engineering, Jilin Agricultural University, Changchun, 130118, China
| | - Hansong Yu
- College of Food Science and Engineering, Jilin Agricultural University, Changchun, 130118, China
| | - Tong Wang
- Department of Basic Courses, NCO Institute of Army Academy of Armored Forces, Changchun, 130117, China
| | - Bin Yang
- School of Life Sciences, Changchun University of Science and Technology, Changchun, 130600, China.
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Enhanced Heterologous Production of Glycosyltransferase UGT76G1 by Co-Expression of Endogenous prpD and malK in Escherichia coli and Its Transglycosylation Application in Production of Rebaudioside. Int J Mol Sci 2020; 21:ijms21165752. [PMID: 32796599 PMCID: PMC7460871 DOI: 10.3390/ijms21165752] [Citation(s) in RCA: 13] [Impact Index Per Article: 3.3] [Reference Citation Analysis] [Abstract] [Key Words] [Track Full Text] [Download PDF] [Figures] [Journal Information] [Subscribe] [Scholar Register] [Received: 07/22/2020] [Revised: 08/06/2020] [Accepted: 08/10/2020] [Indexed: 02/06/2023] Open
Abstract
Steviol glycosides (SGs) with zero calories and high-intensity sweetness are the best substitutes of sugar for the human diet. Uridine diphosphate dependent glycosyltransferase (UGT) UGT76G1, as a key enzyme for the biosynthesis of SGs with a low heterologous expression level, hinders its application. In this study, a suitable fusion partner, Smt3, was found to enhance the soluble expression of UGT76G1 by 60%. Additionally, a novel strategy to improve the expression of Smt3-UGT76G1 was performed, which co-expressed endogenous genes prpD and malK in Escherichia coli. Notably, this is the first report of constructing an efficient E. coli expression system by regulating prpD and malK expression, which remarkably improved the expression of Smt3-UGT76G1 by 200% as a consequence. Using the high-expression strain E. coli BL21 (DE3) M/P-3-S32U produced 1.97 g/L of Smt3-UGT76G1 with a yield rate of 61.6 mg/L/h by fed-batch fermentation in a 10 L fermenter. The final yield of rebadioside A (Reb A) and rebadioside M (Reb M) reached 4.8 g/L and 1.8 g/L, respectively, when catalyzed by Smt3-UGT76G1 in the practical UDP-glucose regeneration transformation system in vitro. This study not only carried out low-cost biotransformation of SGs but also provided a novel strategy for improving expression of heterologous proteins in E. coli.
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Steviol glycosides profile in Stevia rebaudiana Bertoni hairy roots cultured under oxidative stress-inducing conditions. Appl Microbiol Biotechnol 2020; 104:5929-5941. [PMID: 32468157 DOI: 10.1007/s00253-020-10661-5] [Citation(s) in RCA: 3] [Impact Index Per Article: 0.8] [Reference Citation Analysis] [Abstract] [Key Words] [Track Full Text] [Journal Information] [Subscribe] [Scholar Register] [Received: 01/14/2020] [Revised: 04/01/2020] [Accepted: 04/30/2020] [Indexed: 12/25/2022]
Abstract
The ability to synthesize particular steviol glycosides (SvGls) was studied in Stevia rebaudiana Bertoni hairy roots (HR) grown in the light or in the dark under the influence of different osmotic active compounds. Manipulation of culture conditions led to changes in the morphology and growth rate of HR, as well as to an increase in oxidative stress manifested as an enhancement in endogenous hydrogen peroxide concentration in the cultured samples. The highest level of H2O2 was noted in HR cultured under light or in the medium with the highest osmotic potential. This correlated with the highest increase in the expression level of ent-kaurenoic acid hydroxylase, responsible for the redirection of metabolic route to SvGls biosynthesis pathway. An analysis of transcriptional activity of some UDPglucosyltransferase (UGT85c2, UGT74g1, UGT76g1) revealed that all of them were upregulated due to the manipulation of culture conditions. However, the level of their upregulation depended on the type of stress factor used in our experiment. Analysis of SvGls content revealed that HR grown under all applied conditions were able to synthesize and accumulate several SvGls but their concentration differed between the samples across the different conditions. The level of rebaudioside A concentration exceeded the content of stevioside in HR in all tested conditions. Concomitantly, the presence of some minor SvGls, such as steviolbioside and rebaudioside F, was confirmed only in HR cultured in the lowest osmotic potential of the medium while rebaudioside D was also detected in the samples cultured in the media supplemented with NaCl or PEG.Key Points● Several steviol glycosides are synthesized in hairy roots of S. rebaudiana.● Light or osmotic factors cause enhancement in oxidative stress level in hairy roots.● It correlates with a significant increase in the level of KAH expression.● UGTs expression and steviol glycosides content depends on culture conditions.
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Simlat M, Szewczyk A, Ptak A. Melatonin promotes seed germination under salinity and enhances the biosynthesis of steviol glycosides in Stevia rebaudiana Bertoni leaves. PLoS One 2020; 15:e0230755. [PMID: 32218594 PMCID: PMC7100979 DOI: 10.1371/journal.pone.0230755] [Citation(s) in RCA: 12] [Impact Index Per Article: 3.0] [Reference Citation Analysis] [Abstract] [MESH Headings] [Track Full Text] [Download PDF] [Figures] [Journal Information] [Subscribe] [Scholar Register] [Received: 10/03/2019] [Accepted: 03/07/2020] [Indexed: 11/19/2022] Open
Abstract
Melatonin (MEL) can act as a plant growth regulator and biostimulator in stressful situations. Using MEL in seed pretreatment also affects the future growth of plants. Therefore, this research investigated the effects of MEL on seed germination and seedling growth under NaCl in in vitro conditions. The additional effects of MEL on the accumulation of steviol glycosides (SGs) and on the expression of appropriate genes were also studied. Five μM of MEL was the best concentration for seed germination, while 20 μM exerted a positive impact on the biomass of stevia plantlets. NaCl significantly decreased seed germination, but MEL alleviated this effect when seeds were germinated in 50 mM of NaCl. Under salinity, the values of almost all morphological traits decreased as MEL concentration increased. The highest amounts of stevioside and rebaudioside A (Reb A) were observed as a result of treating seeds with 5 and 20 μM of MEL, respectively. When adding NaCl, positive impacts of MEL on the accumulation of both SGs were also observed. Expression analyses of the genes involved in SGs biosynthesis was explored in seeds and leaves, and the transcripts of key enzymes occurred in both the tissues. However, quantitative polymerase chain reaction (qPCR) analysis showed that all tested genes were upregulated in younger leaves, contrary to older ones. Also in younger, rather than older, leaves SG gene expression varied according to MEL concentration. This study, therefore, presents the promising potential of MEL for improving stevia seed germination under salinity conditions and for enhancing the production of SGs in stevia plants.
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Affiliation(s)
- Magdalena Simlat
- Department of Plant Breeding, Physiology and Seed Science, University of Agriculture in Krakow, Krakow, Poland
- * E-mail:
| | - Agnieszka Szewczyk
- Department of Pharmaceutical Botany, Faculty of Pharmacy, Jagiellonian University Medical College, Krakow, Poland
| | - Agata Ptak
- Department of Plant Breeding, Physiology and Seed Science, University of Agriculture in Krakow, Krakow, Poland
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Gholizadeh F, Dastghaib S, Koohpeyma F, Bayat E, Mokarram P. The protective effect of Stevia rebaudiana Bertoni on serum hormone levels, key steroidogenesis enzymes, and testicular damage in testes of diabetic rats. Acta Histochem 2019; 121:833-840. [PMID: 31420111 DOI: 10.1016/j.acthis.2019.08.001] [Citation(s) in RCA: 10] [Impact Index Per Article: 2.0] [Reference Citation Analysis] [Abstract] [Key Words] [Track Full Text] [Journal Information] [Subscribe] [Scholar Register] [Received: 05/28/2019] [Revised: 08/07/2019] [Accepted: 08/07/2019] [Indexed: 01/01/2023]
Abstract
Diabetes Mellitus (DM) is a kind of metabolic endocrine diseases, which has various effects on the gonadal system. The current study aimed to examine the effect of Stevia rebaudiana Bertoni extract on the mRNA expression involved in testosterone synthesis, and stereological parameters in rat testes, for improving diabetes complications. In this study, 48 rats were randomly classified into control, diabetic (streptozocin 60 mg/kg + nicotinamide 120 mg/kg), diabetic + Stevia (400 mg/kg), and diabetic + metformin (500 mg/kg) groups. Finally, Fasting Blood Sugar (FBS) level, the serum level of LH and testosterone, the Star, Cyp11a1, and Hsd17b3 gene expressions, and changes in the testis histology were evaluated. The results indicated a decrease in body weight, serum LH and testosterone level, the star gene expression, stereological changes of testes, and an increase in the FBS level in diabetic group, compared with the control group (P<0.05). Nonetheless, Stevia significantly reduced the FBS and increased the serum LH level, in comparison with diabetic rats (P<0.05), but no significant differences in the serum testosterone level and the Star gene expression has been found. Stevia also resulted in an increase in weight, testis volume, the number of sexual lineage cells, and sperm count and motility, compared to diabetic rats (P<0.05). Due to its antioxidant properties, Stevia enhanced the alteration in spermatogenesis and stereological characteristics in diabetic rat testes. Hence, Stevia could diminish the reproductive system problems and improve infertility in diabetic male rats.
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Rizwan F, Yesmine S, Banu SG, Chowdhury IA, Hasan R, Chatterjee TK. Renoprotective effects of stevia ( Stevia rebaudiana Bertoni), amlodipine, valsartan, and losartan in gentamycin-induced nephrotoxicity in the rat model: Biochemical, hematological and histological approaches. Toxicol Rep 2019; 6:683-691. [PMID: 31372346 PMCID: PMC6656923 DOI: 10.1016/j.toxrep.2019.07.003] [Citation(s) in RCA: 11] [Impact Index Per Article: 2.2] [Reference Citation Analysis] [Abstract] [Key Words] [Track Full Text] [Download PDF] [Figures] [Journal Information] [Subscribe] [Scholar Register] [Received: 03/07/2019] [Revised: 07/05/2019] [Accepted: 07/06/2019] [Indexed: 12/29/2022] Open
Abstract
The current study investigated the renoprotective effects of stevia, angiotensin-II type 1 receptor (AT1) blocker and calcium (Ca2+) channel blocker in gentamycin-induced nephrotoxicity in rat models. Six groups of male Sprague-Dawley rats of eight weeks old were taken for the experiment: sham control, nephrotoxicity, treatment with amlodipine (4 mg/kg/day); stevia (200 mg/kg/day); losartan (15 mg/kg/day) and valsartan (5 mg/kg/day), accordingly. The blood sample was taken for the assessment of renal and hepatic-functional variables like serum creatinine, blood urea, BUN and SGPT, SGOT, and total serum bilirubin. Hematological parameters were also examined. Histological examination has been done on kidneys and liver. Alterations of the body weight and the organ's weight were documented. Treatment with stevia and valsartan significantly decreased serum creatinine levels. A reduction of liver enzymes, and total serum bilirubin levels were observed in all the treatment groups. Treatment with valsartan and amlodipine, remarkably and stevia, mildly reduced the renal tissue damage, inflammation, and tubular necrosis. However, the present study demonstrated that losartan treatment aggravated kidney damage by increasing protein cast, calcification, tubular necrosis, and injury. This comparison indicated that both stevia and valsartan have beneficial renoprotective effect and valsartan offers a better treatment option in renal damage over losartan.
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Key Words
- ACE, angiotensin converting enzyme
- ARB
- ARB, angiotensin-II type 1 receptor (AT1) blockers
- AT1, angiotensin-II type 1 receptor
- AT2, angiotensin-II type 2 receptor
- BUN, blood urea nitrogen
- CCB
- CCB, calcium (Ca2+) channel blocker
- CKD, chronic kidney disease
- EDTA, ethylene diamine tetra acetate
- Gentamycin-induced
- HCT, hematocrit
- HDL, high density lipoprotein
- Hb, hemoglobin
- LDL, low density lipoprotein
- MCH, mean corpuscular hemoglobin
- MCHC, mean corpuscular hemoglobin concentration
- MCV, mean corpuscular volume
- Nephrotoxicity
- RBC, red blood cells
- RBS, random blood sugar
- RDW-CV, red blood cell distribution width-CV
- RDW-SD, red blood cell distribution width-SD
- ROS, reactive oxygen species
- Renoprotective effects
- SGOT, serum glutamic oxaloacetic transaminase
- SGPT, serum glutamic pyruvic transaminase
- Stevia
- TG, triglycerides
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Affiliation(s)
- Farhana Rizwan
- Department of Pharmaceutical Technology, Jadavpur University, Kolkata, 700032, India
- Department of Pharmacy, East West University, Aftabnagar, Dhaka, 1212, Bangladesh
| | - Saquiba Yesmine
- Department of Pharmacy, Jahangirnagar University, Savar, Dhaka, Bangladesh
| | - Sultana Gulshan Banu
- Department of Pathology, Bangabandhu Sheikh Mujib Medical University, Shahbag, Dhaka, Bangladesh
| | | | - Rajibul Hasan
- Department of Biochemistry and Cell Biology, Bangladesh University of Health Sciences, Mirpur, 1216, Dhaka, Bangladesh
| | - Tapan Kumar Chatterjee
- Department of Pharmaceutical Technology, Jadavpur University, Kolkata, 700032, India
- Department of Pharmaceutical Science and Technology, JIS University, Agarpara, Kolkata, 700109, West Bengal, India
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Comparison of uridine diphosphate-glycosyltransferase UGT76G1 genes from some varieties of Stevia rebaudiana Bertoni. Sci Rep 2019; 9:8559. [PMID: 31189962 PMCID: PMC6562098 DOI: 10.1038/s41598-019-44989-4] [Citation(s) in RCA: 21] [Impact Index Per Article: 4.2] [Reference Citation Analysis] [Abstract] [Track Full Text] [Download PDF] [Figures] [Journal Information] [Subscribe] [Scholar Register] [Received: 10/10/2018] [Accepted: 05/29/2019] [Indexed: 11/17/2022] Open
Abstract
Stevia leaves contain various components, such as flavonoids, labdanes, chlorophylls, sterols, triterpenoids, mono-disaccharides, organic acids and inorganic salts. Stevia is known to accumulate diterpenoid steviol glycosides, which are approximately 300 times sweeter than regular sugar. Stevioside and rebaudioside A are the main diterpenic glycosides in stevia. Steviol glycosides are the secondary metabolites responsible for the sweetness of stevia. The main objectives of the present study were to determine the concentrations of diterpenic glycosides (stevioside and rebaudioside A) in three stevia varieties (Stevia rebaudiana) via the HPLC-UV technique and to amplify the UGT76G1 gene by PCR using gene-specific primers. The expression levels of the UGT76G1 gene were determined in the three stevia varieties. The PCR products were sequenced and analyzed, and the nucleotide sequences of the UGT76G1 gene were submitted to GenBank and assigned to the following three varieties: Egy1 (MH087463), China1 (MH087464) and Sponti (MH087465). Cluster analysis was used to separate the three varieties into two major clusters based on their phylogenetic relationship. In addition, chemical analysis was carried out to evaluate stevioside and rebaudioside A. The present study concluded that Egy1 and Sponti are closely related varieties as they fall in the same cluster, while China1 forms a separate cluster. Bioprospecting studies could be useful for selection of superior ecotypes of Stevia rebaudiana.
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Attenuation of high-fat diet-induced fatty liver through PPARα activation by stevioside. J Funct Foods 2019. [DOI: 10.1016/j.jff.2019.04.034] [Citation(s) in RCA: 7] [Impact Index Per Article: 1.4] [Reference Citation Analysis] [Track Full Text] [Journal Information] [Subscribe] [Scholar Register] [Indexed: 12/26/2022] Open
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Genome-wide identification, expression, and interaction analysis for ovate family proteins in peach. Mol Biol Rep 2019; 46:3755-3764. [PMID: 31028569 DOI: 10.1007/s11033-019-04817-4] [Citation(s) in RCA: 6] [Impact Index Per Article: 1.2] [Reference Citation Analysis] [Abstract] [Key Words] [Track Full Text] [Journal Information] [Subscribe] [Scholar Register] [Received: 12/05/2018] [Accepted: 04/12/2019] [Indexed: 10/26/2022]
Abstract
Ovate family proteins (OFPs), which are involved in aspects of plant development and growth, is a class of plant-specific transcription factors. Although OFPs have been reported in some species, little is known about their evolution, structure, fruit developmental expression, and interactions among OFP members in peach (Prunus persica). In this study, 15 peach OFP (PpOFP) genes were identified. Phylogenetic analysis showed that 716 OFPs from 32 species were divided into 15 subgroups; 10 subgroups (Ia, Ib, Ic, Id, Ie, If, Ig, Ih, Ii, and Ij) were composed of dicotyledonous plants only and five (IIa, IIb, IIc, IId, and IIe) were composed of monocotyledonous plants only. Structure analysis showed that the OFP genes in monocotyledonous and dicotyledonous plants had no introns. Chromosomal localization analysis showed that 15 PpOFP genes were unevenly mapped on seven chromosomes. Furthermore, eight of the 15 PpOFP genes were cloned successfully by the RT-PCR method. To some extent, eight PpOFPs were expressed in all the detected peach tissues. In addition, analysis by Y2H and BiFC technologies indicated that both PpOFP4 and PpOFP5 formed homodimers with themselves, and PpOFP5 interacted with PpOFP7 or PpOFP8 to form heterodimers. These results serve as the theoretical basis for the analysis of the biological function and regulation of peach OFP transcription factors in the growth, development and other conditions, as well as evolution studies of OFP transcription factors in higher plants.
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In vitro antioxidant assessment, screening of enzyme inhibitory activities of methanol and water extracts and gene expression in Hypericum lydium. Mol Biol Rep 2019; 46:2121-2129. [PMID: 30762165 DOI: 10.1007/s11033-019-04664-3] [Citation(s) in RCA: 8] [Impact Index Per Article: 1.6] [Reference Citation Analysis] [Abstract] [Key Words] [Track Full Text] [Journal Information] [Subscribe] [Scholar Register] [Received: 11/22/2018] [Accepted: 01/29/2019] [Indexed: 01/23/2023]
Abstract
Hypericum lydium Boiss. is a perennial plant of the Hypericaceae family, which has been used in particular to treat depression. The aim of this study was to determine in vitro antioxidant, antimicrobial activities, anticholinesterase (acetylcholinesterase (AChE)/butyrylcholinesterase (BChE)), antidiabetic activities (α-glucosidase/α-amylase) and Tyrosinase inhibitor activity of methanol and water extracts of H. lydium. Also, gene expression has been evaluated in the shoot and root by microarray technology. So, in general, the purpose of this study is to study the active molecules such as antioxidant, antimicrobial, antidiabetic, enzymes and genes in the plant, which is the first to be reported. The experiments were conducted in a completely randomized design with three replications. In addition, gene expression was compared in the shoot and root parts. Expression profiling was carried out by microarrays. According to the results, the highest chemical components were determined in methanol extract rather than water extract. There was a difference between the obtained components. While the highest antioxidant activity was determined from the methanol extract of plant herbs for DPPH Free Radical Scavenging Activity, antioxidant activity was the same in both methanol and water extracts using the ABTS method. The methanol extract demonstrated stronger anticholinesterase (AChE and BChE) and α-amylase inhibition activity. This study was complemented by the detection of antioxidant activity and some enzyme inhibition activity in the methanol extract. Microarray showed 10,784 genes had significantly different expression in root and shoot. There was a positive effect of methanol extract in respect of different activities compared to the water extract. Gene expression showed that the number of expressed genes in the root was greater than the shoot.
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