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Postiglione AE, Delange AM, Ali MF, Wang EY, Houben M, Hahn SL, Khoury MG, Roark CM, Davis M, Reid RW, Pease JB, Loraine AE, Muday GK. Flavonols improve tomato pollen thermotolerance during germination and tube elongation by maintaining reactive oxygen species homeostasis. THE PLANT CELL 2024; 36:4511-4534. [PMID: 39102899 PMCID: PMC11449072 DOI: 10.1093/plcell/koae222] [Citation(s) in RCA: 0] [Impact Index Per Article: 0] [Reference Citation Analysis] [Abstract] [MESH Headings] [Grants] [Track Full Text] [Subscribe] [Scholar Register] [Received: 11/30/2023] [Revised: 06/20/2024] [Accepted: 07/23/2024] [Indexed: 08/07/2024]
Abstract
Elevated temperatures impair pollen performance and reproductive success, resulting in lower crop yields. The tomato (Solanum lycopersicum) anthocyanin reduced (are) mutant harbors a mutation in FLAVANONE 3-HYDROXYLASE (F3H), resulting in impaired flavonol antioxidant biosynthesis. The are mutant has reduced pollen performance and seed set relative to the VF36 parental line, phenotypes that are accentuated at elevated temperatures. Transformation of are with the wild-type F3H gene, or chemical complementation with flavonols, prevented temperature-dependent reactive oxygen species (ROS) accumulation in pollen and restored the reduced viability, germination, and tube elongation of are to VF36 levels. Overexpression of F3H in VF36 prevented temperature-driven ROS increases and impaired pollen performance, revealing that flavonol biosynthesis promotes thermotolerance. Although stigmas of are had reduced flavonol and elevated ROS levels, the growth of are pollen tubes was similarly impaired in both are and VF36 pistils. RNA-seq was performed at optimal and stress temperatures in are, VF36, and the F3H overexpression line at multiple timepoints across pollen tube elongation. The number of differentially expressed genes increased over time under elevated temperatures in all genotypes, with the greatest number in are. These findings suggest potential agricultural interventions to combat the negative effects of heat-induced ROS in pollen that lead to reproductive failure.
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Affiliation(s)
- Anthony E Postiglione
- Department of Biology and Center for Molecular Signaling, Wake Forest University, Winston-Salem, NC 27109, USA
| | - Allison M Delange
- Department of Biology and Center for Molecular Signaling, Wake Forest University, Winston-Salem, NC 27109, USA
| | - Mohammad Foteh Ali
- Department of Biology and Center for Molecular Signaling, Wake Forest University, Winston-Salem, NC 27109, USA
| | - Eric Y Wang
- Department of Biology and Center for Molecular Signaling, Wake Forest University, Winston-Salem, NC 27109, USA
| | - Maarten Houben
- Department of Biology and Center for Molecular Signaling, Wake Forest University, Winston-Salem, NC 27109, USA
| | - Stacy L Hahn
- Department of Biology and Center for Molecular Signaling, Wake Forest University, Winston-Salem, NC 27109, USA
| | - Maleana G Khoury
- Department of Biology and Center for Molecular Signaling, Wake Forest University, Winston-Salem, NC 27109, USA
| | - Colleen M Roark
- Department of Biology and Center for Molecular Signaling, Wake Forest University, Winston-Salem, NC 27109, USA
| | - Molly Davis
- Department of Bioinformatics and Genomics, University of North Carolina, Charlotte, NC 28223, USA
| | - Robert W Reid
- Department of Bioinformatics and Genomics, University of North Carolina, Charlotte, NC 28223, USA
| | - James B Pease
- Department of Biology and Center for Molecular Signaling, Wake Forest University, Winston-Salem, NC 27109, USA
| | - Ann E Loraine
- Department of Bioinformatics and Genomics, University of North Carolina, Charlotte, NC 28223, USA
| | - Gloria K Muday
- Department of Biology and Center for Molecular Signaling, Wake Forest University, Winston-Salem, NC 27109, USA
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Zhang M, Zhao Y, Nan T, Jiao H, Yue S, Huang L, Yuan Y. Genome-wide analysis of Citrus medica ABC transporters reveals the regulation of fruit development by CmABCB19 and CmABCC10. PLANT PHYSIOLOGY AND BIOCHEMISTRY : PPB 2024; 215:109027. [PMID: 39154422 DOI: 10.1016/j.plaphy.2024.109027] [Citation(s) in RCA: 0] [Impact Index Per Article: 0] [Reference Citation Analysis] [Abstract] [Key Words] [MESH Headings] [Track Full Text] [Subscribe] [Scholar Register] [Received: 04/29/2024] [Revised: 08/05/2024] [Accepted: 08/06/2024] [Indexed: 08/20/2024]
Abstract
ATP-binding cassette (ABC) transporters are vital for plant growth and development as they facilitate the transport of essential molecules. Despite the family's significance, limited information exists about its functional distinctions in Citrus medica. Our study identified 119 genes encoding ABC transporter proteins in the C. medica genome. Through an evolutionary tree and qPCR analysis, two ABC genes, CmABCB19 and CmABCC10, were implicated in C. medica fruit development, showing upregulation in normal fruits compared to malformed fruits. CmABCB19 was found to localize to the plasma membrane of Nicotiana tabacum, exhibiting indole-3-acetic acid (IAA) efflux activity in the yeast mutant strain yap1. CmABCC10, a tonoplast-localized transporter, exhibited efflux of diosmin, nobiletin, and naringin, with rutin influx in strain ycf1. Transgenic expression of CmABCB19 and CmABCC10 in Arabidopsis thaliana induced alterations in auxin and flavonoid content, impacting silique and seed size. This effect was attributed to the modulation of structural genes in the auxin biosynthesis (YUC5/9, CYP79B2, CYP83B1, SUR1) and flavonoid biosynthesis (4CL2/3, CHS, CHI, FLS1/3) pathways. In summary, the functional characterization of CmABCB19 and CmABCC10 illuminates auxin and flavonoid transport, offering insights into their interplay with biosynthetic pathways and providing a foundation for understanding the transporter's role in fruit development.
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Affiliation(s)
- Min Zhang
- State Key Laboratory for Quality Ensurance and Sustainable Use of Dao-di Herbs, Experimental Research Center, Chinese Academy of Chinese Medical Sciences (CACMS), Beijing, China; National Resource Center for Chinese Materia Medica, Chinese Academy of Chinese Medical Sciences (CACMS), Beijing, China.
| | - Yuyang Zhao
- State Key Laboratory for Quality Ensurance and Sustainable Use of Dao-di Herbs, Experimental Research Center, Chinese Academy of Chinese Medical Sciences (CACMS), Beijing, China; National Resource Center for Chinese Materia Medica, Chinese Academy of Chinese Medical Sciences (CACMS), Beijing, China
| | - Tiegui Nan
- State Key Laboratory for Quality Ensurance and Sustainable Use of Dao-di Herbs, Experimental Research Center, Chinese Academy of Chinese Medical Sciences (CACMS), Beijing, China; National Resource Center for Chinese Materia Medica, Chinese Academy of Chinese Medical Sciences (CACMS), Beijing, China
| | - Honghong Jiao
- Co-construction Collaborative Innovation Center for Chinese Medicine Resources Industrialization by Shaanxi & Education Ministry, Shaanxi University of Chinese Medicine, Xianyang, China.
| | - Shiyan Yue
- State Key Laboratory for Quality Ensurance and Sustainable Use of Dao-di Herbs, Experimental Research Center, Chinese Academy of Chinese Medical Sciences (CACMS), Beijing, China; National Resource Center for Chinese Materia Medica, Chinese Academy of Chinese Medical Sciences (CACMS), Beijing, China
| | - Luqi Huang
- State Key Laboratory for Quality Ensurance and Sustainable Use of Dao-di Herbs, Experimental Research Center, Chinese Academy of Chinese Medical Sciences (CACMS), Beijing, China
| | - Yuan Yuan
- State Key Laboratory for Quality Ensurance and Sustainable Use of Dao-di Herbs, Experimental Research Center, Chinese Academy of Chinese Medical Sciences (CACMS), Beijing, China; National Resource Center for Chinese Materia Medica, Chinese Academy of Chinese Medical Sciences (CACMS), Beijing, China.
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Wang S, Huang Y, Sun Y, Wang J, Tang X. Physiological, transcriptomic, and metabolomic analyses reveal that Pantoea sp. YSD J2 inoculation improves the accumulation of flavonoids in Cyperus esculentus L. var. sativus. Heliyon 2024; 10:e35966. [PMID: 39224290 PMCID: PMC11367128 DOI: 10.1016/j.heliyon.2024.e35966] [Citation(s) in RCA: 0] [Impact Index Per Article: 0] [Reference Citation Analysis] [Abstract] [Key Words] [Track Full Text] [Download PDF] [Figures] [Journal Information] [Subscribe] [Scholar Register] [Received: 02/28/2024] [Revised: 07/01/2024] [Accepted: 08/07/2024] [Indexed: 09/04/2024] Open
Abstract
Plant growth-promoting microorganisms (PGPMs), such as Pantoea sp. YSD J2, promote plant development and stress resistance, while their role in flavonoids accumulation still needs to be further understood. To investigate the complex flavonoid biosynthesis pathway of Cyperus esculentus L. var. sativus (tigernut), we compared Pantoea sp. YSD J2 inoculation (YSD J2) and water inoculation (CK) groups. YSD J2 significantly elevated the content of indole-3-acetic acid (IAA) and orientin. Furthermore, when analyzing flavonoid metabolome, YSD J2 caused increased levels of uralenol, petunidin-3-O-glucoside-5-O-arabinoside, luteolin-7-O-glucuronide-(2 → 1)-glucuronide, kaempferol-3-O-neohesperidoside, cyanidin-3-O-(2″-O-glucosyl)glucoside, kaempferol-3-O-glucuronide-7-O-glucoside, quercetin-3-O-glucoside, luteolin-7-O-glucuronide-(2 → 1)-(2″-sinapoyl)glucuronide, and quercetin-4'-O-glucoside, which further enhanced antioxidant activity. We then performed RNA-seq and LC-MS/MS, aiming to validate key genes and related flavonoid metabolites under YSD J2 inoculation, and rebuild the gene-metabolites regulatory subnetworks. Furthermore, the expression patterns of the trans cinnamate 4-monooxygenase (CYP73A), flavonol-3-O-L-rhamnoside-7-O-glucosyltransferase (UGT73C6), shikimate O-hydroxycinnamoyltransferase (HCT), chalcone isomerase (CHI), flavonol synthase (FLS), and anthocyanidin synthase (ANS) genes were confirmed by qRT-PCR. Additionally, 4 transcription factors (TF) (especially bHLH34, Cluster-37505.3) under YSD J2 inoculation are also engaged in regulating flavonoid accumulation. Moreover, the current work sheds new light on studying the regulatory effect of Pantoea sp. YSD J2 on tigernut development and flavonoid biosynthesis.
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Affiliation(s)
- Saisai Wang
- School of Agriculture and Biology, Shanghai Jiao Tong University, Dongchuan Road 800, Minhang District, Shanghai, 200240, PR China
- Key Laboratory of Urban Agriculture, Ministry of Agriculture and Rural Affairs, Dongchuan Road 800, Minhang District, Shanghai, 200240, PR China
- Shanghai Yangtze River Delta Eco-Environmental Change and Management Observation and Research Station, Ministry of Science and Technology, Ministry of Education, Dongchuan Road 800, Minhang District, Shanghai, 200240, PR China
| | - Yanna Huang
- School of Agriculture and Biology, Shanghai Jiao Tong University, Dongchuan Road 800, Minhang District, Shanghai, 200240, PR China
- Key Laboratory of Urban Agriculture, Ministry of Agriculture and Rural Affairs, Dongchuan Road 800, Minhang District, Shanghai, 200240, PR China
- Shanghai Yangtze River Delta Eco-Environmental Change and Management Observation and Research Station, Ministry of Science and Technology, Ministry of Education, Dongchuan Road 800, Minhang District, Shanghai, 200240, PR China
| | - Yu Sun
- Biotechnology Research Institute Key Laboratory of Agricultural Genetics and Breeding, Shanghai Academy of Agricultural Sciences, Beidi Road 2901, Minhang District, Shanghai, 201106, PR China
| | - Jinbin Wang
- Biotechnology Research Institute Key Laboratory of Agricultural Genetics and Breeding, Shanghai Academy of Agricultural Sciences, Beidi Road 2901, Minhang District, Shanghai, 201106, PR China
| | - Xueming Tang
- School of Agriculture and Biology, Shanghai Jiao Tong University, Dongchuan Road 800, Minhang District, Shanghai, 200240, PR China
- Key Laboratory of Urban Agriculture, Ministry of Agriculture and Rural Affairs, Dongchuan Road 800, Minhang District, Shanghai, 200240, PR China
- Shanghai Yangtze River Delta Eco-Environmental Change and Management Observation and Research Station, Ministry of Science and Technology, Ministry of Education, Dongchuan Road 800, Minhang District, Shanghai, 200240, PR China
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4
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Jia E, Li H, He F, Xu X, Wei J, Shao G, Liu J, Ma P. Metabolic engineering of artificially modified transcription factor SmMYB36-VP16 for high-level production of tanshinones and phenolic acids. Metab Eng 2024; 86:29-40. [PMID: 39181435 DOI: 10.1016/j.ymben.2024.08.004] [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: 04/27/2024] [Revised: 07/15/2024] [Accepted: 08/18/2024] [Indexed: 08/27/2024]
Abstract
Tanshinones and phenolic acids are the two main chemical constituents in Salvia miltiorrhiza, which are used clinically for the treatment of hypertension, coronary heart disease, atherosclerosis, and many other diseases, and have broad medicinal value. The efficient synthesis of the target products of these two metabolites in isolated plant tissues cannot be achieved without the regulation and optimization of metabolic pathways, and transcription factors play an important role as common regulatory elements in plant tissue metabolic engineering. However, most of the regulatory effects are specific to one class of metabolites, or an opposing regulation of two classes of metabolites exists. In this study, an artificially modified transcription factor, SmMYB36-VP16, was constructed to enhance tanshinones and phenolic acids in Salvia miltiorrhiza hair roots simultaneously. Further in combination with the elicitors dual-screening technique, by applying the optimal elicitors screened, the tanshinones content in the transgenic hairy roots of Salvia miltiorrhiza reached 6.44 mg/g DW, which was theoretically 6.08-fold that of the controls without any treatment, and the content of phenolic acids reached 141.03 mg/g DW, which was theoretically 5.05-fold that of the controls without any treatment. The combination of artificially modified transcriptional regulatory and elicitors dual-screening techniques has facilitated the ability of plant isolated tissue cell factories to produce targeted medicinal metabolites. This strategy could be applied to other species, laying the foundation for the production of potential natural products for the medicinal industry.
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Affiliation(s)
- Entong Jia
- College of Life Sciences, Northwest A&F University, Yangling, 712100, China
| | - He Li
- College of Life Sciences, Northwest A&F University, Yangling, 712100, China
| | - Fang He
- College of Life Sciences, Northwest A&F University, Yangling, 712100, China
| | - Xiaoyu Xu
- College of Life Sciences, Northwest A&F University, Yangling, 712100, China
| | - Jia Wei
- Institute of Agricultural Biotechnology, Jilin Academy of Agricultural Sciences (Northeast Agricultural Research Center of China), Changchun, 130033, China
| | - Gaige Shao
- Xi'an Agricultural Technology Promotion Center, Xi'an, 710061, China
| | - Jingying Liu
- College of Life Sciences, Northwest A&F University, Yangling, 712100, China
| | - Pengda Ma
- College of Life Sciences, Northwest A&F University, Yangling, 712100, China.
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5
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Liu T, Wang P, Chen Y, Sun B, Li Q, Wan H, Yang W, Ma P, Zhang D, Dong G, Chen S, Chen Q, Ma W, Sun W. LC-MS and MALDI-MSI-based metabolomic approaches provide insights into the spatial-temporal metabolite profiles of Tartary buckwheat achene development. Food Chem 2024; 449:139183. [PMID: 38604028 DOI: 10.1016/j.foodchem.2024.139183] [Citation(s) in RCA: 0] [Impact Index Per Article: 0] [Reference Citation Analysis] [Abstract] [Key Words] [MESH Headings] [Track Full Text] [Journal Information] [Subscribe] [Scholar Register] [Received: 11/22/2023] [Revised: 03/03/2024] [Accepted: 03/27/2024] [Indexed: 04/13/2024]
Abstract
Tartary buckwheat, celebrated as the "king of grains" for its flavonoid and phenolic acid richness, has health-promoting properties. Despite significant morphological and metabolic variations in mature achenes, research on their developmental process is limited. Utilizing Liquid chromatography-mass spectrometry and atmospheric pressure matrix-assisted laser desorption/ionization mass spectrometry imaging, we conducted spatial-temporal metabolomics on two cultivars during achene development. Metabolic profiles including 17 phenolic acids and 83 flavonoids are influenced by both varietal distinctions and developmental intricacies. Notably, flavonols, as major flavonoids, accumulated with achene ripening and showed a tissue-specific distribution. Specifically, flavonol glycosides and aglycones concentrated in the embryo, while methylated flavonols and procyanidins in the hull. Black achenes at the green achene stage have higher bioactive compounds and enhanced antioxidant capacity. These findings provide insights into spatial and temporal characteristics of metabolites in Tartary buckwheat achenes and serve as a theoretical guide for selecting optimal resources for food production.
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Affiliation(s)
- Tingxia Liu
- College of Pharmaceutical Sciences, Heilongjiang University of Chinese Medicine, Harbin 150040, China; State Key Laboratory for Quality Ensurance and Sustainable Use of Dao-di Herbs, Institute of Chinese Materia Medica, China Academy of Chinese Medical Sciences, Beijing 100700, China
| | - Peng Wang
- College of Life Science, Northwest A & F University, Yangling 712100, China
| | - Yiling Chen
- Amway (China) Botanical R&D Centre, Wuxi 214115, China
| | - Boshi Sun
- College of Life Science, Northwest A & F University, Yangling 712100, China
| | - Qing Li
- State Key Laboratory for Quality Ensurance and Sustainable Use of Dao-di Herbs, Institute of Chinese Materia Medica, China Academy of Chinese Medical Sciences, Beijing 100700, China
| | - Huihua Wan
- State Key Laboratory for Quality Ensurance and Sustainable Use of Dao-di Herbs, Institute of Chinese Materia Medica, China Academy of Chinese Medical Sciences, Beijing 100700, China
| | - Wei Yang
- State Key Laboratory for Quality Ensurance and Sustainable Use of Dao-di Herbs, Institute of Chinese Materia Medica, China Academy of Chinese Medical Sciences, Beijing 100700, China
| | - Pengda Ma
- College of Life Science, Northwest A & F University, Yangling 712100, China
| | - Dong Zhang
- College of Agriculture, South China Agricultural University, Guangzhou Laboratory for Lingnan Modern Agriculture Science and Technology, Guangzhou 510642, China
| | | | - Shilin Chen
- State Key Laboratory for Quality Ensurance and Sustainable Use of Dao-di Herbs, Institute of Chinese Materia Medica, China Academy of Chinese Medical Sciences, Beijing 100700, China
| | - Qingfu Chen
- Research Center of Buckwheat Industry Technology, Guizhou Normal University, Baoshan Beilu15 116, Guiyang 550001, China
| | - Wei Ma
- College of Pharmaceutical Sciences, Heilongjiang University of Chinese Medicine, Harbin 150040, China.
| | - Wei Sun
- State Key Laboratory for Quality Ensurance and Sustainable Use of Dao-di Herbs, Institute of Chinese Materia Medica, China Academy of Chinese Medical Sciences, Beijing 100700, China.
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6
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Wang Y, Zhang M, Bao L, Long J, Cui X, Zheng Z, Zhao X, Huang Y, Jiao F, Su C, Qian Y. Metabolomic and transcriptomic analysis of flavonoids biosynthesis mechanisms in mulberry fruit (Hongguo 2) under exogenous hormone treatments. PLANT PHYSIOLOGY AND BIOCHEMISTRY : PPB 2024; 212:108773. [PMID: 38820912 DOI: 10.1016/j.plaphy.2024.108773] [Citation(s) in RCA: 0] [Impact Index Per Article: 0] [Reference Citation Analysis] [Abstract] [Key Words] [MESH Headings] [Track Full Text] [Subscribe] [Scholar Register] [Received: 01/25/2024] [Revised: 05/15/2024] [Accepted: 05/22/2024] [Indexed: 06/02/2024]
Abstract
The mulberry fruit is prized for its superior nutrition value and abundant color due to its high flavone content. To enhance comprehension of flavone biogenesis induced by external hormones, we sprayed exogenous ethylene (ETH), indoleacetic acid (IAA) and spermine (SPM) on mulberry fruit (Hongguo 2) during its color-changed period. The levels of anthocyanin, titratable acid, soluble sugar and endogenous hormones were determined after hormone treatment, integrated transcriptome and metabolome analysis were performed for mechanism exploration. Our results indicated that exogenous ETH, SPM, and IAA play important roles in mulberry ripening, including acid reduction, sugar increase and flavonoid synthesis.
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Affiliation(s)
- Yifang Wang
- The Sericultural and Silk Research Institute, College of Animal Science and Technology, Northwest A&F University, Yangling, 712100, China; Center for Mitochondrial Biology and Medicine, The Key Laboratory of Biomedical Information Engineering of Ministry of Education, School of Life Science, Xi'an Jiaotong University, Xi'an, Shaanxi, 710049, China
| | - Minjuan Zhang
- The Sericultural and Silk Research Institute, College of Animal Science and Technology, Northwest A&F University, Yangling, 712100, China
| | - Lijun Bao
- The Sericultural and Silk Research Institute, College of Animal Science and Technology, Northwest A&F University, Yangling, 712100, China.
| | - Jiangang Long
- Center for Mitochondrial Biology and Medicine, The Key Laboratory of Biomedical Information Engineering of Ministry of Education, School of Life Science, Xi'an Jiaotong University, Xi'an, Shaanxi, 710049, China
| | - Xiaopeng Cui
- The Sericultural and Silk Research Institute, College of Animal Science and Technology, Northwest A&F University, Yangling, 712100, China
| | - Zelin Zheng
- The Sericultural and Silk Research Institute, College of Animal Science and Technology, Northwest A&F University, Yangling, 712100, China
| | - Xiaoxiao Zhao
- The Sericultural and Silk Research Institute, College of Animal Science and Technology, Northwest A&F University, Yangling, 712100, China
| | - Yanzhen Huang
- The Sericultural and Silk Research Institute, College of Animal Science and Technology, Northwest A&F University, Yangling, 712100, China
| | - Feng Jiao
- The Sericultural and Silk Research Institute, College of Animal Science and Technology, Northwest A&F University, Yangling, 712100, China
| | - Chao Su
- The Sericultural and Silk Research Institute, College of Animal Science and Technology, Northwest A&F University, Yangling, 712100, China.
| | - Yonghua Qian
- The Sericultural and Silk Research Institute, College of Animal Science and Technology, Northwest A&F University, Yangling, 712100, China.
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Lavhale SG, Kondhare KR, Sinthadurai VS, Barvkar VT, Kale RS, Joshi RS, Giri AP. Ocimum kilimandscharicum 4CL11 negatively regulates adventitious root development via accumulation of flavonoid glycosides. THE PLANT JOURNAL : FOR CELL AND MOLECULAR BIOLOGY 2024; 119:176-196. [PMID: 38575203 DOI: 10.1111/tpj.16752] [Citation(s) in RCA: 0] [Impact Index Per Article: 0] [Reference Citation Analysis] [Abstract] [Key Words] [MESH Headings] [Grants] [Track Full Text] [Subscribe] [Scholar Register] [Received: 05/28/2023] [Revised: 02/17/2024] [Accepted: 03/20/2024] [Indexed: 04/06/2024]
Abstract
4-Coumarate-CoA Ligase (4CL) is an important enzyme in the phenylpropanoid biosynthesis pathway. Multiple 4CLs are identified in Ocimum species; however, their in planta functions remain enigmatic. In this study, we independently overexpressed three Ok4CL isoforms from Ocimum kilimandscharicum (Ok4CL7, -11, and -15) in Nicotiana benthamiana. Interestingly, Ok4CL11 overexpression (OE) caused a rootless or reduced root growth phenotype, whereas overexpression of Ok4CL15 produced normal adventitious root (AR) growth. Ok4CL11 overexpression in N. benthamiana resulted in upregulation of genes involved in flavonoid biosynthesis and associated glycosyltransferases accompanied by accumulation of specific flavonoid-glycosides (kaempferol-3-rhamnoside, kaempferol-3,7-O-bis-alpha-l-rhamnoside [K3,7R], and quercetin-3-O-rutinoside) that possibly reduced auxin levels in plants, and such effects were not seen for Ok4CL7 and -15. Docking analysis suggested that auxin transporters (PINs/LAXs) have higher binding affinity to these specific flavonoid-glycosides, and thus could disrupt auxin transport/signaling, which cumulatively resulted in a rootless phenotype. Reduced auxin levels, increased K3,7R in the middle and basal stem sections, and grafting experiments (intra and inter-species) indicated a disruption of auxin transport by K3,7R and its negative effect on AR development. Supplementation of flavonoids and the specific glycosides accumulated by Ok4CL11-OE to the wild-type N. benthamiana explants delayed the AR emergence and also inhibited AR growth. While overexpression of all three Ok4CLs increased lignin accumulation, flavonoids, and their specific glycosides were accumulated only in Ok4CL11-OE lines. In summary, our study reveals unique indirect function of Ok4CL11 to increase specific flavonoids and their glycosides, which are negative regulators of root growth, likely involved in inhibition of auxin transport and signaling.
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Affiliation(s)
- Santosh G Lavhale
- Plant Molecular Biology Unit, Biochemical Sciences Division, CSIR-National Chemical Laboratory, Pune, Maharashtra, 411008, India
- Academy of Scientific and Innovative Research (AcSIR), Ghaziabad, Uttar Pradesh, 201002, India
| | - Kirtikumar R Kondhare
- Plant Molecular Biology Unit, Biochemical Sciences Division, CSIR-National Chemical Laboratory, Pune, Maharashtra, 411008, India
- Academy of Scientific and Innovative Research (AcSIR), Ghaziabad, Uttar Pradesh, 201002, India
| | - Veenothini S Sinthadurai
- Plant Molecular Biology Unit, Biochemical Sciences Division, CSIR-National Chemical Laboratory, Pune, Maharashtra, 411008, India
- Academy of Scientific and Innovative Research (AcSIR), Ghaziabad, Uttar Pradesh, 201002, India
| | - Vitthal T Barvkar
- Department of Botany, Savitribai Phule Pune University, Pune, Maharashtra, 411007, India
| | - Rutuja S Kale
- Plant Molecular Biology Unit, Biochemical Sciences Division, CSIR-National Chemical Laboratory, Pune, Maharashtra, 411008, India
- Academy of Scientific and Innovative Research (AcSIR), Ghaziabad, Uttar Pradesh, 201002, India
| | - Rakesh S Joshi
- Plant Molecular Biology Unit, Biochemical Sciences Division, CSIR-National Chemical Laboratory, Pune, Maharashtra, 411008, India
- Academy of Scientific and Innovative Research (AcSIR), Ghaziabad, Uttar Pradesh, 201002, India
| | - Ashok P Giri
- Plant Molecular Biology Unit, Biochemical Sciences Division, CSIR-National Chemical Laboratory, Pune, Maharashtra, 411008, India
- Academy of Scientific and Innovative Research (AcSIR), Ghaziabad, Uttar Pradesh, 201002, India
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8
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Yang H, Zhang X, Cui D, Zhu YG, Zhang Y, Zhang Z. Mechanism of flavonols on detoxification, migration and transformation of indium in rhizosphere system. THE SCIENCE OF THE TOTAL ENVIRONMENT 2024; 929:172693. [PMID: 38663607 DOI: 10.1016/j.scitotenv.2024.172693] [Citation(s) in RCA: 0] [Impact Index Per Article: 0] [Reference Citation Analysis] [Abstract] [Key Words] [MESH Headings] [Track Full Text] [Subscribe] [Scholar Register] [Received: 12/23/2023] [Revised: 04/12/2024] [Accepted: 04/21/2024] [Indexed: 04/29/2024]
Abstract
Soil contamination by toxic heavy metal induces serious environmental hazards. In recent years, the use of indium (In) in semiconductor products has increased considerably and the release of In is inevitable, which will pose great risk to the ecosystem. The interaction between metal and plants which are the fundamental components of all ecosystems are an indispensable aspect of indium assessment and remediation. The role of flavonols, which is essential to plant resistance to In stress, remains largely unknown. FLS1 related lines of A. thaliana (Col, fls1-3 and OE) were exposed to In stress in soil and flavonols as root exudates were analyzed in exogenous application test. The accumulation and release of flavonols could be induced by In stress. However, flavonols exhibited different function in vivo and in vitro of plant. The basic function of flavonols was to affect root morphology via regulating auxin, but being intervened by In stress. The synthesis and accumulation of flavonols in vivo could activate the antioxidant system and the metal detoxification system to alleviate the toxic effects of In on plant. In addition, plants could make phone calls to rhizosphere microbes for help when exposed to In. Flavonols in vitro might act as the information transmission. Combination of endogenous and exogenous flavonols could affect the migration and transformation of In in soil-plant system via metal complexation and transportation pathway.
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Affiliation(s)
- Huanhuan Yang
- School of Life Sciences, Qilu Normal University, Jinan 250200, China
| | - Xu Zhang
- School of Municipal and Environmental Engineering, Shandong Jianzhu University, Jinan 250101, China; Research Center for Eco-Environmental Sciences, Chinese Academy of Sciences, Beijing 100085, China.
| | - Dayong Cui
- School of Life Sciences, Qilu Normal University, Jinan 250200, China
| | - Yong Guan Zhu
- Research Center for Eco-Environmental Sciences, Chinese Academy of Sciences, Beijing 100085, China
| | - Yanhao Zhang
- School of Municipal and Environmental Engineering, Shandong Jianzhu University, Jinan 250101, China
| | - Zhibin Zhang
- School of Municipal and Environmental Engineering, Shandong Jianzhu University, Jinan 250101, China.
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9
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Manjarrez LF, Guevara MÁ, de María N, Vélez MD, Cobo-Simón I, López-Hinojosa M, Cabezas JA, Mancha JA, Pizarro A, Díaz-Sala MC, Cervera MT. Maritime Pine Rootstock Genotype Modulates Gene Expression Associated with Stress Tolerance in Grafted Stems. PLANTS (BASEL, SWITZERLAND) 2024; 13:1644. [PMID: 38931075 PMCID: PMC11207801 DOI: 10.3390/plants13121644] [Citation(s) in RCA: 0] [Impact Index Per Article: 0] [Reference Citation Analysis] [Abstract] [Key Words] [Grants] [Track Full Text] [Subscribe] [Scholar Register] [Received: 05/17/2024] [Revised: 06/06/2024] [Accepted: 06/07/2024] [Indexed: 06/28/2024]
Abstract
Climate change-induced hazards, such as drought, threaten forest resilience, particularly in vulnerable regions such as the Mediterranean Basin. Maritime pine (Pinus pinaster Aiton), a model species in Western Europe, plays a crucial role in the Mediterranean forest due to its genetic diversity and ecological plasticity. This study characterizes transcriptional profiles of scion and rootstock stems of four P. pinaster graft combinations grown under well-watered conditions. Our grafting scheme combined drought-sensitive and drought-tolerant genotypes for scions (GAL1056: drought-sensitive scion; and Oria6: drought-tolerant scion) and rootstocks (R1S: drought-sensitive rootstock; and R18T: drought-tolerant rootstock). Transcriptomic analysis revealed expression patterns shaped by genotype provenance and graft combination. The accumulation of differentially expressed genes (DEGs) encoding proteins, involved in defense mechanisms and pathogen recognition, was higher in drought-sensitive scion stems and also increased when grafted onto drought-sensitive rootstocks. DEGs involved in drought tolerance mechanisms were identified in drought-tolerant genotypes as well as in drought-sensitive scions grafted onto drought-tolerant rootstocks, suggesting their establishment prior to drought. These mechanisms were associated with ABA metabolism and signaling. They were also involved in the activation of the ROS-scavenging pathways, which included the regulation of flavonoid and terpenoid metabolisms. Our results reveal DEGs potentially associated with the conifer response to drought and point out differences in drought tolerance strategies. These findings suggest genetic trade-offs between pine growth and defense, which could be relevant in selecting more drought-tolerant Pinus pinaster trees.
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Affiliation(s)
- Lorenzo Federico Manjarrez
- Departamento de Ecología y Genética Forestal, Instituto de Ciencias Forestal (ICIFOR), Instituto Nacional de Investigación y Tecnología Agraria y Alimentaria—Consejo Superior de Investigaciones Científicas (INIA–CSIC), 28040 Madrid, Spain; (L.F.M.); (N.d.M.); (M.D.V.); (I.C.-S.); (M.L.-H.); (J.A.C.); (J.A.M.)
| | - María Ángeles Guevara
- Departamento de Ecología y Genética Forestal, Instituto de Ciencias Forestal (ICIFOR), Instituto Nacional de Investigación y Tecnología Agraria y Alimentaria—Consejo Superior de Investigaciones Científicas (INIA–CSIC), 28040 Madrid, Spain; (L.F.M.); (N.d.M.); (M.D.V.); (I.C.-S.); (M.L.-H.); (J.A.C.); (J.A.M.)
| | - Nuria de María
- Departamento de Ecología y Genética Forestal, Instituto de Ciencias Forestal (ICIFOR), Instituto Nacional de Investigación y Tecnología Agraria y Alimentaria—Consejo Superior de Investigaciones Científicas (INIA–CSIC), 28040 Madrid, Spain; (L.F.M.); (N.d.M.); (M.D.V.); (I.C.-S.); (M.L.-H.); (J.A.C.); (J.A.M.)
| | - María Dolores Vélez
- Departamento de Ecología y Genética Forestal, Instituto de Ciencias Forestal (ICIFOR), Instituto Nacional de Investigación y Tecnología Agraria y Alimentaria—Consejo Superior de Investigaciones Científicas (INIA–CSIC), 28040 Madrid, Spain; (L.F.M.); (N.d.M.); (M.D.V.); (I.C.-S.); (M.L.-H.); (J.A.C.); (J.A.M.)
| | - Irene Cobo-Simón
- Departamento de Ecología y Genética Forestal, Instituto de Ciencias Forestal (ICIFOR), Instituto Nacional de Investigación y Tecnología Agraria y Alimentaria—Consejo Superior de Investigaciones Científicas (INIA–CSIC), 28040 Madrid, Spain; (L.F.M.); (N.d.M.); (M.D.V.); (I.C.-S.); (M.L.-H.); (J.A.C.); (J.A.M.)
| | - Miriam López-Hinojosa
- Departamento de Ecología y Genética Forestal, Instituto de Ciencias Forestal (ICIFOR), Instituto Nacional de Investigación y Tecnología Agraria y Alimentaria—Consejo Superior de Investigaciones Científicas (INIA–CSIC), 28040 Madrid, Spain; (L.F.M.); (N.d.M.); (M.D.V.); (I.C.-S.); (M.L.-H.); (J.A.C.); (J.A.M.)
| | - José Antonio Cabezas
- Departamento de Ecología y Genética Forestal, Instituto de Ciencias Forestal (ICIFOR), Instituto Nacional de Investigación y Tecnología Agraria y Alimentaria—Consejo Superior de Investigaciones Científicas (INIA–CSIC), 28040 Madrid, Spain; (L.F.M.); (N.d.M.); (M.D.V.); (I.C.-S.); (M.L.-H.); (J.A.C.); (J.A.M.)
| | - José Antonio Mancha
- Departamento de Ecología y Genética Forestal, Instituto de Ciencias Forestal (ICIFOR), Instituto Nacional de Investigación y Tecnología Agraria y Alimentaria—Consejo Superior de Investigaciones Científicas (INIA–CSIC), 28040 Madrid, Spain; (L.F.M.); (N.d.M.); (M.D.V.); (I.C.-S.); (M.L.-H.); (J.A.C.); (J.A.M.)
| | - Alberto Pizarro
- Departamento de Ciencias de la Vida, Universidad de Alcalá (UAH), 28805 Alcalá de Henares, Spain; (A.P.); (M.C.D.-S.)
| | - María Carmen Díaz-Sala
- Departamento de Ciencias de la Vida, Universidad de Alcalá (UAH), 28805 Alcalá de Henares, Spain; (A.P.); (M.C.D.-S.)
| | - María Teresa Cervera
- Departamento de Ecología y Genética Forestal, Instituto de Ciencias Forestal (ICIFOR), Instituto Nacional de Investigación y Tecnología Agraria y Alimentaria—Consejo Superior de Investigaciones Científicas (INIA–CSIC), 28040 Madrid, Spain; (L.F.M.); (N.d.M.); (M.D.V.); (I.C.-S.); (M.L.-H.); (J.A.C.); (J.A.M.)
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10
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Banerjee S, Agarwal P, Choudhury SR, Roy S. MYB4, a member of R2R3-subfamily of MYB transcription factor functions as a repressor of key genes involved in flavonoid biosynthesis and repair of UV-B induced DNA double strand breaks in Arabidopsis. PLANT PHYSIOLOGY AND BIOCHEMISTRY : PPB 2024; 211:108698. [PMID: 38714132 DOI: 10.1016/j.plaphy.2024.108698] [Citation(s) in RCA: 0] [Impact Index Per Article: 0] [Reference Citation Analysis] [Abstract] [Key Words] [MESH Headings] [Track Full Text] [Subscribe] [Scholar Register] [Received: 11/10/2023] [Revised: 03/31/2024] [Accepted: 05/01/2024] [Indexed: 05/09/2024]
Abstract
Plants accumulate flavonoids as part of UV-B acclimation, while a high level of UV-B irradiation induces DNA damage and leads to genome instability. Here, we show that MYB4, a member of the R2R3-subfamily of MYB transcription factor plays important role in regulating plant response to UV-B exposure through the direct repression of the key genes involved in flavonoids biosynthesis and repair of DNA double-strand breaks (DSBs). Our results demonstrate that MYB4 inhibits seed germination and seedling establishment in Arabidopsis following UV-B exposure. Phenotype analyses of atmyb4-1 single mutant line along with uvr8-6/atmyb4-1, cop1-6/atmyb4-1, and hy5-215/atmyb4-1 double mutants indicate that MYB4 functions downstream of UVR8 mediated signaling pathway and negatively affects UV-B acclimation and cotyledon expansion. Our results indicate that MYB4 acts as transcriptional repressor of two key flavonoid biosynthesis genes, including 4CL and FLS, via directly binding to their promoter, thus reducing flavonoid accumulation. On the other hand, AtMYB4 overexpression leads to higher accumulation level of DSBs along with repressed expression of several key DSB repair genes, including AtATM, AtKU70, AtLIG4, AtXRCC4, AtBRCA1, AtSOG1, AtRAD51, and AtRAD54, respectively. Our results further suggest that MYB4 protein represses the expression of two crucial DSB repair genes, AtKU70 and AtXRCC4 through direct binding with their promoters. Together, our results indicate that MYB4 functions as an important coordinator to regulate plant response to UV-B through transcriptional regulation of key genes involved in flavonoids biosynthesis and repair of UV-B induced DNA damage.
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Affiliation(s)
- Samrat Banerjee
- Department of Botany, UGC Center for Advanced Studies, The University of Burdwan, Golapbag Campus, Burdwan, West Bengal, 713104, India
| | - Puja Agarwal
- Constituent College in Purnea University, Purnia, 854301, Bihar, India
| | - Swarup Roy Choudhury
- Department of Biology, Indian Institute of Science Education and Research (IISER) Tirupati, Tirupati, Andhra Pradesh, 517507, India
| | - Sujit Roy
- Department of Botany, UGC Center for Advanced Studies, The University of Burdwan, Golapbag Campus, Burdwan, West Bengal, 713104, India.
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11
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Ma X, Hou Y, Umar AW, Wang Y, Yu L, Ahmad N, Yao N, Zhang M, Liu X. Safflower CtFLS1-Induced Drought Tolerance by Stimulating the Accumulation of Flavonols and Anthocyanins in Arabidopsis thaliana. Int J Mol Sci 2024; 25:5546. [PMID: 38791581 PMCID: PMC11122397 DOI: 10.3390/ijms25105546] [Citation(s) in RCA: 0] [Impact Index Per Article: 0] [Reference Citation Analysis] [Abstract] [Key Words] [MESH Headings] [Grants] [Track Full Text] [Journal Information] [Subscribe] [Scholar Register] [Received: 04/10/2024] [Revised: 05/04/2024] [Accepted: 05/16/2024] [Indexed: 05/26/2024] Open
Abstract
Flavonol synthase gene (FLS) is a member of the 2-oxoglutarate-dependent dioxygenase (2-ODD) superfamily and plays an important role in plant flavonoids biosynthetic pathways. Safflower (Carthamus tinctorius L.), a key source of traditional Chinese medicine, is widely cultivated in China. Although the flavonoid biosynthetic pathway has been studied in several model species, it still remains to be explored in safflower. In this study, we aimed to elucidate the role of CtFLS1 gene in flavonoid biosynthesis and drought stress responses. The bioinformatics analysis on the CtFLS1 gene showed that it contains two FLS-specific motifs (PxxxIRxxxEQP and SxxTxLVP), suggesting its independent evolution. Further, the expression level of CtFLS1 in safflower showed a positive correlation with the accumulation level of total flavonoid content in four different flowering stages. In addition, CtFLS1-overexpression (OE) Arabidopsis plants significantly induced the expression levels of key genes involved in flavonol pathway. On the contrary, the expression of anthocyanin pathway-related genes and MYB transcription factors showed down-regulation. Furthermore, CtFLS1-OE plants promoted seed germination, as well as resistance to osmotic pressure and drought, and reduced sensitivity to ABA compared to mutant and wild-type plants. Moreover, CtFLS1 and CtANS1 were both subcellularly located at the cell membrane and nucleus; the yeast two-hybrid and bimolecular fluorescence complementation (BiFC) assay showed that they interacted with each other at the cell membrane. Altogether, these findings suggest the positive role of CtFLS1 in alleviating drought stress by stimulating flavonols and anthocyanin accumulation in safflower.
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Affiliation(s)
- Xintong Ma
- Engineering Research Center of the Chinese Ministry of Education for Bioreactor and Pharmaceutical Development, College of Life Sciences, Jilin Agricultural University, Changchun 130118, China; (X.M.); (Y.H.); (Y.W.); (L.Y.)
| | - Yuying Hou
- Engineering Research Center of the Chinese Ministry of Education for Bioreactor and Pharmaceutical Development, College of Life Sciences, Jilin Agricultural University, Changchun 130118, China; (X.M.); (Y.H.); (Y.W.); (L.Y.)
| | - Abdul Wakeel Umar
- BNU-HKUST Laboratory of Green Innovation, Advanced Institute of Natural Sciences, Beijing Normal University at Zhuhai (BNUZ), Zhuhai 519087, China;
| | - Yuhan Wang
- Engineering Research Center of the Chinese Ministry of Education for Bioreactor and Pharmaceutical Development, College of Life Sciences, Jilin Agricultural University, Changchun 130118, China; (X.M.); (Y.H.); (Y.W.); (L.Y.)
| | - Lili Yu
- Engineering Research Center of the Chinese Ministry of Education for Bioreactor and Pharmaceutical Development, College of Life Sciences, Jilin Agricultural University, Changchun 130118, China; (X.M.); (Y.H.); (Y.W.); (L.Y.)
| | - Naveed Ahmad
- Joint Center for Single Cell Biology, Shanghai Collaborative Innovation Center of Agri-Seeds, School of Agriculture and Biology, Shanghai Jiao Tong University, Shanghai 200240, China;
| | - Na Yao
- Engineering Research Center of the Chinese Ministry of Education for Bioreactor and Pharmaceutical Development, College of Life Sciences, Jilin Agricultural University, Changchun 130118, China; (X.M.); (Y.H.); (Y.W.); (L.Y.)
| | - Min Zhang
- Engineering Research Center of the Chinese Ministry of Education for Bioreactor and Pharmaceutical Development, College of Life Sciences, Jilin Agricultural University, Changchun 130118, China; (X.M.); (Y.H.); (Y.W.); (L.Y.)
- Ginseng and Antler Products Testing Center of the Ministry of Agriculture PRC, Jilin Agricultural University, Changchun 130118, China
| | - Xiuming Liu
- Engineering Research Center of the Chinese Ministry of Education for Bioreactor and Pharmaceutical Development, College of Life Sciences, Jilin Agricultural University, Changchun 130118, China; (X.M.); (Y.H.); (Y.W.); (L.Y.)
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12
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Dixon RA, Dickinson AJ. A century of studying plant secondary metabolism-From "what?" to "where, how, and why?". PLANT PHYSIOLOGY 2024; 195:48-66. [PMID: 38163637 PMCID: PMC11060662 DOI: 10.1093/plphys/kiad596] [Citation(s) in RCA: 9] [Impact Index Per Article: 9.0] [Reference Citation Analysis] [Abstract] [MESH Headings] [Grants] [Track Full Text] [Subscribe] [Scholar Register] [Received: 07/10/2023] [Accepted: 08/15/2023] [Indexed: 01/03/2024]
Abstract
Over the past century, early advances in understanding the identity of the chemicals that collectively form a living plant have led scientists to deeper investigations exploring where these molecules localize, how they are made, and why they are synthesized in the first place. Many small molecules are specific to the plant kingdom and have been termed plant secondary metabolites, despite the fact that they can play primary and essential roles in plant structure, development, and response to the environment. The past 100 yr have witnessed elucidation of the structure, function, localization, and biosynthesis of selected plant secondary metabolites. Nevertheless, many mysteries remain about the vast diversity of chemicals produced by plants and their roles in plant biology. From early work characterizing unpurified plant extracts, to modern integration of 'omics technology to discover genes in metabolite biosynthesis and perception, research in plant (bio)chemistry has produced knowledge with substantial benefits for society, including human medicine and agricultural biotechnology. Here, we review the history of this work and offer suggestions for future areas of exploration. We also highlight some of the recently developed technologies that are leading to ongoing research advances.
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Affiliation(s)
- Richard A Dixon
- BioDiscovery Institute and Department of Biological Sciences, University of North Texas, Denton, TX 76203, USA
| | - Alexandra Jazz Dickinson
- Department of Cell and Developmental Biology, University of California at San Diego, La Jolla, CA 92093, USA
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13
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Chen M, Dai Y, Liao J, Wu H, Lv Q, Huang Y, Liu L, Feng Y, Lv H, Zhou B, Peng D. TARGET OF MONOPTEROS: key transcription factors orchestrating plant development and environmental response. JOURNAL OF EXPERIMENTAL BOTANY 2024; 75:2214-2234. [PMID: 38195092 DOI: 10.1093/jxb/erae005] [Citation(s) in RCA: 0] [Impact Index Per Article: 0] [Reference Citation Analysis] [Abstract] [Key Words] [MESH Headings] [Grants] [Track Full Text] [Subscribe] [Scholar Register] [Received: 09/06/2023] [Accepted: 01/04/2024] [Indexed: 01/11/2024]
Abstract
Plants have an incredible ability to sustain root and vascular growth after initiation of the embryonic root and the specification of vascular tissue in early embryos. Microarray assays have revealed that a group of transcription factors, TARGET OF MONOPTEROS (TMO), are important for embryonic root initiation in Arabidopsis. Despite the discovery of their auxin responsiveness early on, their function and mode of action remained unknown for many years. The advent of genome editing has accelerated the study of TMO transcription factors, revealing novel functions for biological processes such as vascular development, root system architecture, and response to environmental cues. This review covers recent achievements in understanding the developmental function and the genetic mode of action of TMO transcription factors in Arabidopsis and other plant species. We highlight the transcriptional and post-transcriptional regulation of TMO transcription factors in relation to their function, mainly in Arabidopsis. Finally, we provide suggestions for further research and potential applications in plant genetic engineering.
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Affiliation(s)
- Min Chen
- Faculty of Life Science and Biotechnology of Central South University of Forestry and Technology, 410004, Changsha, Hunan, China
| | - Yani Dai
- Faculty of Life Science and Biotechnology of Central South University of Forestry and Technology, 410004, Changsha, Hunan, China
| | - Jiamin Liao
- Faculty of Life Science and Biotechnology of Central South University of Forestry and Technology, 410004, Changsha, Hunan, China
| | - Huan Wu
- Faculty of Life Science and Biotechnology of Central South University of Forestry and Technology, 410004, Changsha, Hunan, China
| | - Qiang Lv
- Faculty of Life Science and Biotechnology of Central South University of Forestry and Technology, 410004, Changsha, Hunan, China
| | - Yu Huang
- Faculty of Life Science and Biotechnology of Central South University of Forestry and Technology, 410004, Changsha, Hunan, China
| | - Lichang Liu
- Faculty of Life Science and Biotechnology of Central South University of Forestry and Technology, 410004, Changsha, Hunan, China
| | - Yu Feng
- Faculty of Life Science and Biotechnology of Central South University of Forestry and Technology, 410004, Changsha, Hunan, China
| | - Hongxuan Lv
- Faculty of Life Science and Biotechnology of Central South University of Forestry and Technology, 410004, Changsha, Hunan, China
| | - Bo Zhou
- Faculty of Life Science and Biotechnology of Central South University of Forestry and Technology, 410004, Changsha, Hunan, China
- Huitong National Field Station for Scientific Observation and Research of Chinese Fir Plantation Ecosystem in Hunan Province, 438107, Huaihua, Hunan, China
- National Engineering Laboratory of Applied Technology for Forestry and Ecology in Southern China, 410004, Changsha, Hunan, China
- Forestry Biotechnology Hunan Key Laboratories, Hunan, China
- Key Laboratory of Cultivation and Protection for Non-Wood Forest Trees, Ministry of Education, Central South University of Forestry and Technology, 410004, Changsha, Hunan, China
- Yuelushan Laboratory Carbon Sinks Forests Variety Innovation Center, 410004, Changsha, Hunan, China
| | - Dan Peng
- Faculty of Life Science and Biotechnology of Central South University of Forestry and Technology, 410004, Changsha, Hunan, China
- Huitong National Field Station for Scientific Observation and Research of Chinese Fir Plantation Ecosystem in Hunan Province, 438107, Huaihua, Hunan, China
- Forestry Biotechnology Hunan Key Laboratories, Hunan, China
- Yuelushan Laboratory Carbon Sinks Forests Variety Innovation Center, 410004, Changsha, Hunan, China
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14
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Xie N, Guo Q, Li H, Yuan G, Gui Q, Xiao Y, Liao M, Yang L. Integrated transcriptomic and WGCNA analyses reveal candidate genes regulating mainly flavonoid biosynthesis in Litsea coreana var. sinensis. BMC PLANT BIOLOGY 2024; 24:231. [PMID: 38561656 PMCID: PMC10985888 DOI: 10.1186/s12870-024-04949-1] [Citation(s) in RCA: 0] [Impact Index Per Article: 0] [Reference Citation Analysis] [Abstract] [Key Words] [MESH Headings] [Grants] [Track Full Text] [Subscribe] [Scholar Register] [Received: 09/21/2023] [Accepted: 03/26/2024] [Indexed: 04/04/2024]
Abstract
Litsea coreana Levl. var. sinensis (Allen) Yang et P. H. Huang is a popular ethnic herb and beverage plant known for its high flavonoid content, which has been linked to a variety of pharmacological benefits and crucial health-promoting impacts in humans. The progress in understanding the molecular mechanisms of flavonoid accumulation in this plant has been hindered due to the deficiency of genomic and transcriptomic resources. We utilized a combination of Illumina and Oxford Nanopore Technology (ONT) sequencing to generate a de novo hybrid transcriptome assembly. In total, 126,977 unigenes were characterized, out of which 107,977 were successfully annotated in seven public databases. Within the annotated unigenes, 3,781 were categorized into 58 transcription factor families. Furthermore, we investigated the presence of four valuable flavonoids-quercetin-3-O-β-D-galactoside, quercetin-3-O-β-D-glucoside, kaempferol-3-O-β-D-galactoside, and kaempferol-3-O-β-D-glucoside in 98 samples, using high-performance liquid chromatography. A weighted gene co-expression network analysis identified two co-expression modules, MEpink and MEturquoise, that showed strong positive correlation with flavonoid content. Within these modules, four transcription factor genes (R2R3-MYB, NAC, WD40, and ARF) and four key enzyme-encoding genes (CHI, F3H, PAL, and C4H) emerged as potential hub genes. Among them, the R2R3-MYB (LcsMYB123) as a homologous gene to AtMYB123/TT2, was speculated to play a significant role in flavonol biosynthesis based on phylogenetic analysis. Our findings provided a theoretical foundation for further research into the molecular mechanisms of flavonoid biosynthesis. Additionally, The hybrid transcriptome sequences will serve as a valuable molecular resource for the transcriptional annotation of L. coreana var. sinensis, which will contribute to the improvement of high-flavonoid materials.
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Affiliation(s)
- Na Xie
- Institute for Forest Resources and Environment of Guizhou, College of Forestry, Guizhou University, Guiyang, 550025, China
| | - Qiqaing Guo
- Institute for Forest Resources and Environment of Guizhou, College of Forestry, Guizhou University, Guiyang, 550025, China.
| | - Huie Li
- College of Agriculture, Guizhou University, Guiyang, 550025, China
| | - Gangyi Yuan
- Institute for Forest Resources and Environment of Guizhou, College of Forestry, Guizhou University, Guiyang, 550025, China
| | - Qin Gui
- Institute for Forest Resources and Environment of Guizhou, College of Forestry, Guizhou University, Guiyang, 550025, China
| | - Yang Xiao
- Institute for Forest Resources and Environment of Guizhou, College of Forestry, Guizhou University, Guiyang, 550025, China
| | - Mengyun Liao
- Institute for Forest Resources and Environment of Guizhou, College of Forestry, Guizhou University, Guiyang, 550025, China
| | - Lan Yang
- Institute for Forest Resources and Environment of Guizhou, College of Forestry, Guizhou University, Guiyang, 550025, China
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15
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Dong X, Liu X, Cheng L, Li R, Ge S, Wang S, Cai Y, Liu Y, Meng S, Jiang CZ, Shi CL, Li T, Fu D, Qi M, Xu T. SlBEL11 regulates flavonoid biosynthesis, thus fine-tuning auxin efflux to prevent premature fruit drop in tomato. JOURNAL OF INTEGRATIVE PLANT BIOLOGY 2024; 66:749-770. [PMID: 38420861 DOI: 10.1111/jipb.13627] [Citation(s) in RCA: 0] [Impact Index Per Article: 0] [Reference Citation Analysis] [Abstract] [Key Words] [MESH Headings] [Grants] [Track Full Text] [Subscribe] [Scholar Register] [Received: 10/24/2023] [Accepted: 01/13/2024] [Indexed: 03/02/2024]
Abstract
Auxin regulates flower and fruit abscission, but how developmental signals mediate auxin transport in abscission remains unclear. Here, we reveal the role of the transcription factor BEL1-LIKE HOMEODOMAIN11 (SlBEL11) in regulating auxin transport during abscission in tomato (Solanum lycopersicum). SlBEL11 is highly expressed in the fruit abscission zone, and its expression increases during fruit development. Knockdown of SlBEL11 expression by RNA interference (RNAi) caused premature fruit drop at the breaker (Br) and 3 d post-breaker (Br+3) stages of fruit development. Transcriptome and metabolome analysis of SlBEL11-RNAi lines revealed impaired flavonoid biosynthesis and decreased levels of most flavonoids, especially quercetin, which functions as an auxin transport inhibitor. This suggested that SlBEL11 prevents premature fruit abscission by modulating auxin efflux from fruits, which is crucial for the formation of an auxin response gradient. Indeed, quercetin treatment suppressed premature fruit drop in SlBEL11-RNAi plants. DNA affinity purification sequencing (DAP-seq) analysis indicated that SlBEL11 induced expression of the transcription factor gene SlMYB111 by directly binding to its promoter. Chromatin immunoprecipitation-quantitative polymerase chain reaction and electrophoretic mobility shift assay showed that S. lycopersicum MYELOBLASTOSIS VIRAL ONCOGENE HOMOLOG111 (SlMYB111) induces the expression of the core flavonoid biosynthesis genes SlCHS1, SlCHI, SlF3H, and SlFLS by directly binding to their promoters. Our findings suggest that the SlBEL11-SlMYB111 module modulates flavonoid biosynthesis to fine-tune auxin efflux from fruits and thus maintain an auxin response gradient in the pedicel, thereby preventing premature fruit drop.
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Affiliation(s)
- Xiufen Dong
- College of Horticulture, Shenyang Agricultural University, Shenyang, 110866, China
- Collaborative Innovation Center for Efficient and Green Production of Agriculture in Mountainous Areas of Zhejiang Province, College of Horticulture Science, Zhejiang A&F University, Hangzhou, 311300, China
- Key Laboratory for Quality and Safety Control of Subtropical Fruits and Vegetables, Collaborative Innovation Center for Efficient and Green Production of Agriculture in Mountainous Areas of Zhejiang Province, Ministry of Agriculture and Rural Affairs, College of Horticulture Science, Zhejiang A&F University, Hangzhou, 311300, China
| | - Xianfeng Liu
- College of Horticulture, Shenyang Agricultural University, Shenyang, 110866, China
- Key Laboratory of Protected Horticulture of Ministry of Education, Shenyang, 110866, China
| | - Lina Cheng
- College of Horticulture, Shenyang Agricultural University, Shenyang, 110866, China
- Key Laboratory of Protected Horticulture of Ministry of Education, Shenyang, 110866, China
| | - Ruizhen Li
- College of Horticulture, Shenyang Agricultural University, Shenyang, 110866, China
- Key Laboratory of Protected Horticulture of Ministry of Education, Shenyang, 110866, China
| | - Siqi Ge
- College of Horticulture, Shenyang Agricultural University, Shenyang, 110866, China
- Key Laboratory of Protected Horticulture of Ministry of Education, Shenyang, 110866, China
| | - Sai Wang
- College of Horticulture, Shenyang Agricultural University, Shenyang, 110866, China
- Key Laboratory of Protected Horticulture of Ministry of Education, Shenyang, 110866, China
| | - Yue Cai
- College of Horticulture, Shenyang Agricultural University, Shenyang, 110866, China
- Key Laboratory of Protected Horticulture of Ministry of Education, Shenyang, 110866, China
| | - Yang Liu
- College of Horticulture, Shenyang Agricultural University, Shenyang, 110866, China
- Key Laboratory of Protected Horticulture of Ministry of Education, Shenyang, 110866, China
| | - Sida Meng
- College of Horticulture, Shenyang Agricultural University, Shenyang, 110866, China
- Key Laboratory of Protected Horticulture of Ministry of Education, Shenyang, 110866, China
| | - Cai-Zhong Jiang
- Crops Pathology and Genetic Research Unit, United States Department of Agriculture Agricultural Research Service, Washington, DC, 20250, USA
- Department of Plant Sciences, University of California, Davis, CA, 95616, USA
| | | | - Tianlai Li
- College of Horticulture, Shenyang Agricultural University, Shenyang, 110866, China
- Key Laboratory of Protected Horticulture of Ministry of Education, Shenyang, 110866, China
| | - Daqi Fu
- Laboratory of Fruit Biology, College of Food Science and Nutritional Engineering, China Agricultural University, Beijing, 100083, China
| | - Mingfang Qi
- College of Horticulture, Shenyang Agricultural University, Shenyang, 110866, China
- Key Laboratory of Protected Horticulture of Ministry of Education, Shenyang, 110866, China
| | - Tao Xu
- College of Horticulture, Shenyang Agricultural University, Shenyang, 110866, China
- Key Laboratory of Protected Horticulture of Ministry of Education, Shenyang, 110866, China
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Tripathi A, Chauhan N, Mukhopadhyay P. Recent advances in understanding the regulation of plant secondary metabolite biosynthesis by ethylene-mediated pathways. PHYSIOLOGY AND MOLECULAR BIOLOGY OF PLANTS : AN INTERNATIONAL JOURNAL OF FUNCTIONAL PLANT BIOLOGY 2024; 30:543-557. [PMID: 38737326 PMCID: PMC11087406 DOI: 10.1007/s12298-024-01441-w] [Citation(s) in RCA: 0] [Impact Index Per Article: 0] [Reference Citation Analysis] [Abstract] [Key Words] [Grants] [Track Full Text] [Subscribe] [Scholar Register] [Received: 09/26/2023] [Revised: 03/12/2024] [Accepted: 03/19/2024] [Indexed: 05/14/2024]
Abstract
Plants produce a large repertoire of secondary metabolites. The pathways that lead to the biosynthesis of these metabolites are majorly conserved in the plant kingdom. However, a significant portion of these metabolites are specific to certain groups or species due to variations in the downstream pathways and evolution of the enzymes. These metabolites show spatiotemporal variation in their accumulation and are of great importance to plants due to their role in development, stress response and survival. A large number of these metabolites are in huge industrial demand due to their potential use as therapeutics, aromatics and more. Ethylene, as a plant hormone is long known, and its biosynthetic process, signaling mechanism and effects on development and response pathways have been characterized in many plants. Through exogenous treatments, ethylene and its inhibitors have been used to manipulate the production of various secondary metabolites. However, the research done on a limited number of plants in the last few years has only started to uncover the mechanisms through which ethylene regulates the accumulation of these metabolites. Often in association with other hormones, ethylene participates in fine-tuning the biosynthesis of the secondary metabolites, and brings specificity in the regulation depending on the plant, organ, tissue type and the prevailing conditions. This review summarizes the related studies, interprets the outcomes, and identifies the gaps that will help to breed better varieties of the related crops and produce high-value secondary metabolites for human benefits.
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Affiliation(s)
- Alka Tripathi
- Plant Biotechnology division, CSIR-Central Institute of Medicinal and Aromatic Plants, Lucknow, Uttar Pradesh 226015 India
| | - Nisha Chauhan
- Plant Biotechnology division, CSIR-Central Institute of Medicinal and Aromatic Plants, Lucknow, Uttar Pradesh 226015 India
- Academy of Scientific and Innovative Research (AcSIR), CSIR-HRDC Campus, Ghaziabad, Uttar Pradesh 201002 India
| | - Pradipto Mukhopadhyay
- Plant Biotechnology division, CSIR-Central Institute of Medicinal and Aromatic Plants, Lucknow, Uttar Pradesh 226015 India
- Academy of Scientific and Innovative Research (AcSIR), CSIR-HRDC Campus, Ghaziabad, Uttar Pradesh 201002 India
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17
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Cao Y, Mei Y, Zhang R, Zhong Z, Yang X, Xu C, Chen K, Li X. Transcriptional regulation of flavonol biosynthesis in plants. HORTICULTURE RESEARCH 2024; 11:uhae043. [PMID: 38623072 PMCID: PMC11017525 DOI: 10.1093/hr/uhae043] [Citation(s) in RCA: 0] [Impact Index Per Article: 0] [Reference Citation Analysis] [Abstract] [Track Full Text] [Figures] [Subscribe] [Scholar Register] [Received: 08/26/2023] [Accepted: 02/02/2024] [Indexed: 04/17/2024]
Abstract
Flavonols are a class of flavonoids that play a crucial role in regulating plant growth and promoting stress resistance. They are also important dietary components in horticultural crops due to their benefits for human health. In past decades, research on the transcriptional regulation of flavonol biosynthesis in plants has increased rapidly. This review summarizes recent progress in flavonol-specific transcriptional regulation in plants, encompassing characterization of different categories of transcription factors (TFs) and microRNAs as well as elucidation of different transcriptional mechanisms, including direct and cascade transcriptional regulation. Direct transcriptional regulation involves TFs, such as MYB, AP2/ERF, and WRKY, which can directly target the key flavonol synthase gene or other early genes in flavonoid biosynthesis. In addition, different regulation modules in cascade transcriptional regulation involve microRNAs targeting TFs, regulation between activators, interaction between activators and repressors, and degradation of activators or repressors induced by UV-B light or plant hormones. Such sophisticated regulation of the flavonol biosynthetic pathway in response to UV-B radiation or hormones may allow plants to fine-tune flavonol homeostasis, thereby balancing plant growth and stress responses in a timely manner. Based on orchestrated regulation, molecular design strategies will be applied to breed horticultural crops with excellent health-promoting effects and high resistance.
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Affiliation(s)
- Yunlin Cao
- Zhejiang Provincial Key Laboratory of Horticultural Crop Quality Manipulation, Zhejiang University, Hangzhou, 310058, China
- Center for Drug Safety Evaluation and Research, College of Pharmaceutical Sciences, Zhejiang University, Hangzhou, 310058, China
- Shandong (Linyi) Institute of Modern Agriculture, Zhejiang University, Linyi, 276000, China
| | - Yuyang Mei
- Zhejiang Provincial Key Laboratory of Horticultural Crop Quality Manipulation, Zhejiang University, Hangzhou, 310058, China
| | - Ruining Zhang
- Zhejiang Provincial Key Laboratory of Horticultural Crop Quality Manipulation, Zhejiang University, Hangzhou, 310058, China
| | - Zelong Zhong
- College of Food Science and Nutritional Engineering, China Agricultural University, Beijing 100083, China
| | - Xiaochun Yang
- Center for Drug Safety Evaluation and Research, College of Pharmaceutical Sciences, Zhejiang University, Hangzhou, 310058, China
- Shandong (Linyi) Institute of Modern Agriculture, Zhejiang University, Linyi, 276000, China
| | - Changjie Xu
- Zhejiang Provincial Key Laboratory of Horticultural Crop Quality Manipulation, Zhejiang University, Hangzhou, 310058, China
| | - Kunsong Chen
- Zhejiang Provincial Key Laboratory of Horticultural Crop Quality Manipulation, Zhejiang University, Hangzhou, 310058, China
| | - Xian Li
- Zhejiang Provincial Key Laboratory of Horticultural Crop Quality Manipulation, Zhejiang University, Hangzhou, 310058, China
- Shandong (Linyi) Institute of Modern Agriculture, Zhejiang University, Linyi, 276000, China
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18
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Ercoli MF, Shigenaga AM, de Araujo AT, Jain R, Ronald PC. Tyrosine-sulfated peptide hormone induces flavonol biosynthesis to control elongation and differentiation in Arabidopsis primary root. BIORXIV : THE PREPRINT SERVER FOR BIOLOGY 2024:2024.02.02.578681. [PMID: 38352507 PMCID: PMC10862922 DOI: 10.1101/2024.02.02.578681] [Citation(s) in RCA: 0] [Impact Index Per Article: 0] [Reference Citation Analysis] [Abstract] [Grants] [Track Full Text] [Download PDF] [Figures] [Subscribe] [Scholar Register] [Indexed: 02/22/2024]
Abstract
In Arabidopsis roots, growth initiation and cessation are organized into distinct zones. How regulatory mechanisms are integrated to coordinate these processes and maintain proper growth progression over time is not well understood. Here, we demonstrate that the peptide hormone PLANT PEPTIDE CONTAINING SULFATED TYROSINE 1 (PSY1) promotes root growth by controlling cell elongation. Higher levels of PSY1 lead to longer differentiated cells with a shootward displacement of characteristics common to mature cells. PSY1 activates genes involved in the biosynthesis of flavonols, a group of plant-specific secondary metabolites. Using genetic and chemical approaches, we show that flavonols are required for PSY1 function. Flavonol accumulation downstream of PSY1 occurs in the differentiation zone, where PSY1 also reduces auxin and reactive oxygen species (ROS) activity. These findings support a model where PSY1 signals the developmental-specific accumulation of secondary metabolites to regulate the extent of cell elongation and the overall progression to maturation.
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Affiliation(s)
- Maria Florencia Ercoli
- Department of Plant Pathology, University of California, Davis, CA 95616
- The Genome Center, University of California, Davis, CA 95616
- The Innovative Genomics Institute, University of California, Berkeley 94720
| | - Alexandra M Shigenaga
- Department of Plant Pathology, University of California, Davis, CA 95616
- The Genome Center, University of California, Davis, CA 95616
| | - Artur Teixeira de Araujo
- Department of Plant Pathology, University of California, Davis, CA 95616
- The Genome Center, University of California, Davis, CA 95616
- The Joint Bioenergy Institute, Emeryville, California
| | - Rashmi Jain
- Department of Plant Pathology, University of California, Davis, CA 95616
- The Genome Center, University of California, Davis, CA 95616
| | - Pamela C Ronald
- Department of Plant Pathology, University of California, Davis, CA 95616
- The Genome Center, University of California, Davis, CA 95616
- The Innovative Genomics Institute, University of California, Berkeley 94720
- The Joint Bioenergy Institute, Emeryville, California
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19
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Hua Z, Zhang T, Luo J, Bai H, Ma S, Qiang H, Guo X. Internalization, physiological responses and molecular mechanisms of lettuce to polystyrene microplastics of different sizes: Validation of simulated soilless culture. JOURNAL OF HAZARDOUS MATERIALS 2024; 462:132710. [PMID: 37832437 DOI: 10.1016/j.jhazmat.2023.132710] [Citation(s) in RCA: 12] [Impact Index Per Article: 12.0] [Reference Citation Analysis] [Abstract] [Key Words] [MESH Headings] [Track Full Text] [Subscribe] [Scholar Register] [Received: 07/01/2023] [Revised: 09/12/2023] [Accepted: 10/03/2023] [Indexed: 10/15/2023]
Abstract
Microplastics (MPs) exists widely in the environment, and the resulting pollution of MPs has become a global environmental problem. Plants can absorb MPs through their roots. However, studies on the mechanism of the effect of root exposure to different size MPs on vegetables are limited. Here, we use Polystyrene (PS) MPs with different particle sizes to investigate the internalization, physiological response and molecular mechanism of lettuce to MPs. MPs may accumulate in large amounts in lettuce roots and migrate to the aboveground part through the vascular bundle, while small particle size MPs (SMPs, 100 nm) have stronger translocation ability than large particle size MPs (LMPs, 500 nm). MPs can cause physiological and biochemical responses and transcriptome changes in lettuce. SMPs and LMPs resulted in reduced biomass (38.27 % and 48.22 % reduction in fresh weight); caused oxidative stress (59.33 % and 47.74 % upregulation of SOD activity in roots) and differential gene expression (605 and 907 DEGs). Signal transduction, membrane transport and alteration of synthetic and metabolic pathways may be the main causes of physiological toxicity of lettuce. Our study provides important information for understanding the behavior and fate of MPs in edible vegetables, especially the physiological toxicity of MPs to edible vegetables, in order to assess the potential threat of MPs to food safety and agricultural sustainable development.
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Affiliation(s)
- Zhengdong Hua
- College of Natural Resources and Environment, Northwest A & F University, Yangling 712100, China
| | - Tianli Zhang
- College of Natural Resources and Environment, Northwest A & F University, Yangling 712100, China
| | - Junqi Luo
- College of Natural Resources and Environment, Northwest A & F University, Yangling 712100, China
| | - Haoduo Bai
- College of Natural Resources and Environment, Northwest A & F University, Yangling 712100, China
| | - Sirui Ma
- College of Natural Resources and Environment, Northwest A & F University, Yangling 712100, China
| | - Hong Qiang
- College of Natural Resources and Environment, Northwest A & F University, Yangling 712100, China; Key Laboratory of Plant Nutrition and the Agro-environment in Northwest China, Ministry of Agriculture, Yangling 712100, China
| | - Xuetao Guo
- College of Natural Resources and Environment, Northwest A & F University, Yangling 712100, China; Key Laboratory of Plant Nutrition and the Agro-environment in Northwest China, Ministry of Agriculture, Yangling 712100, China.
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20
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Song Q, He F, Kong L, Yang J, Wang X, Zhao Z, Zhang Y, Xu C, Fan C, Luo K. The IAA17.1/HSFA5a module enhances salt tolerance in Populus tomentosa by regulating flavonol biosynthesis and ROS levels in lateral roots. THE NEW PHYTOLOGIST 2024; 241:592-606. [PMID: 37974487 DOI: 10.1111/nph.19382] [Citation(s) in RCA: 0] [Impact Index Per Article: 0] [Reference Citation Analysis] [Abstract] [Key Words] [MESH Headings] [Grants] [Track Full Text] [Subscribe] [Scholar Register] [Received: 09/05/2023] [Accepted: 10/09/2023] [Indexed: 11/19/2023]
Abstract
Auxin signaling provides a promising approach to controlling root system architecture and improving stress tolerance in plants. However, how the auxin signaling is transducted in this process remains unclear. The Aux indole-3-acetic acid (IAA) repressor IAA17.1 is stabilized by salinity, and primarily expressed in the lateral root (LR) primordia and tips in poplar. Overexpression of the auxin-resistant form of IAA17.1 (IAA17.1m) led to growth inhibition of LRs, markedly reduced salt tolerance, increased reactive oxygen species (ROS) levels, and decreased flavonol content. We further identified that IAA17.1 can interact with the heat shock protein HSFA5a, which was highly expressed in roots and induced by salt stress. Overexpression of HSFA5a significantly increased flavonol content, reduced ROS accumulation, enhanced LR growth and salt tolerance in transgenic poplar. Moreover, HSFA5a could rescue the defective phenotypes caused by IAA17.1m. Expression analysis showed that genes associated with flavonol biosynthesis were altered in IAA17.1m- and HAFA5a-overexpressing plants. Furthermore, we identified that HSFA5a directly activated the expression of key enzyme genes in the flavonol biosynthesis pathway, while IAA17.1 suppressed HSFA5a-mediated activation of these genes. Collectively, the IAA17.1/HSFA5a module regulates flavonol biosynthesis, controls ROS accumulation, thereby modulating the root system of poplar to adapt to salt stress.
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Affiliation(s)
- Qin Song
- Chongqing Key Laboratory of Plant Resource Conservation and Germplasm Innovation, Integrative Science Center of Germplasm Creation in Western China (Chongqing) Science City, School of Life Sciences, Southwest University, Chongqing, 400715, China
- Key Laboratory of Eco-environments of Three Gorges Reservoir Region, Ministry of Education, School of Life Sciences, Southwest University, Chongqing, 400715, China
| | - Fu He
- Chongqing Key Laboratory of Plant Resource Conservation and Germplasm Innovation, Integrative Science Center of Germplasm Creation in Western China (Chongqing) Science City, School of Life Sciences, Southwest University, Chongqing, 400715, China
- Key Laboratory of Three Gorges Regional Plant Genetics & Germplasm Enhancement (CTGU), Biotechnology Research Center, China Three Gorges University, Yichang, 443000, China
| | - Lingfei Kong
- Chongqing Key Laboratory of Plant Resource Conservation and Germplasm Innovation, Integrative Science Center of Germplasm Creation in Western China (Chongqing) Science City, School of Life Sciences, Southwest University, Chongqing, 400715, China
- Key Laboratory of Eco-environments of Three Gorges Reservoir Region, Ministry of Education, School of Life Sciences, Southwest University, Chongqing, 400715, China
| | - Jiarui Yang
- Chongqing Key Laboratory of Plant Resource Conservation and Germplasm Innovation, Integrative Science Center of Germplasm Creation in Western China (Chongqing) Science City, School of Life Sciences, Southwest University, Chongqing, 400715, China
- Key Laboratory of Eco-environments of Three Gorges Reservoir Region, Ministry of Education, School of Life Sciences, Southwest University, Chongqing, 400715, China
| | - Xiaojing Wang
- Chongqing Key Laboratory of Plant Resource Conservation and Germplasm Innovation, Integrative Science Center of Germplasm Creation in Western China (Chongqing) Science City, School of Life Sciences, Southwest University, Chongqing, 400715, China
- Key Laboratory of Eco-environments of Three Gorges Reservoir Region, Ministry of Education, School of Life Sciences, Southwest University, Chongqing, 400715, China
| | - Zhengjie Zhao
- Chongqing Key Laboratory of Plant Resource Conservation and Germplasm Innovation, Integrative Science Center of Germplasm Creation in Western China (Chongqing) Science City, School of Life Sciences, Southwest University, Chongqing, 400715, China
- Key Laboratory of Eco-environments of Three Gorges Reservoir Region, Ministry of Education, School of Life Sciences, Southwest University, Chongqing, 400715, China
| | - Yuqian Zhang
- Chongqing Key Laboratory of Plant Resource Conservation and Germplasm Innovation, Integrative Science Center of Germplasm Creation in Western China (Chongqing) Science City, School of Life Sciences, Southwest University, Chongqing, 400715, China
- Key Laboratory of Eco-environments of Three Gorges Reservoir Region, Ministry of Education, School of Life Sciences, Southwest University, Chongqing, 400715, China
| | - Changzheng Xu
- Chongqing Key Laboratory of Plant Resource Conservation and Germplasm Innovation, Integrative Science Center of Germplasm Creation in Western China (Chongqing) Science City, School of Life Sciences, Southwest University, Chongqing, 400715, China
| | - Chunfen Fan
- Chongqing Key Laboratory of Plant Resource Conservation and Germplasm Innovation, Integrative Science Center of Germplasm Creation in Western China (Chongqing) Science City, School of Life Sciences, Southwest University, Chongqing, 400715, China
- Key Laboratory of Eco-environments of Three Gorges Reservoir Region, Ministry of Education, School of Life Sciences, Southwest University, Chongqing, 400715, China
| | - Keming Luo
- Chongqing Key Laboratory of Plant Resource Conservation and Germplasm Innovation, Integrative Science Center of Germplasm Creation in Western China (Chongqing) Science City, School of Life Sciences, Southwest University, Chongqing, 400715, China
- Key Laboratory of Eco-environments of Three Gorges Reservoir Region, Ministry of Education, School of Life Sciences, Southwest University, Chongqing, 400715, China
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21
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Naik J, Tyagi S, Rajput R, Kumar P, Pucker B, Bisht NC, Misra P, Stracke R, Pandey A. Flavonols affect the interrelated glucosinolate and camalexin biosynthetic pathways in Arabidopsis thaliana. JOURNAL OF EXPERIMENTAL BOTANY 2024; 75:219-240. [PMID: 37813680 DOI: 10.1093/jxb/erad391] [Citation(s) in RCA: 0] [Impact Index Per Article: 0] [Reference Citation Analysis] [Abstract] [Key Words] [MESH Headings] [Grants] [Track Full Text] [Subscribe] [Scholar Register] [Received: 07/04/2023] [Accepted: 10/04/2023] [Indexed: 10/11/2023]
Abstract
Flavonols are structurally and functionally diverse biomolecules involved in plant biotic and abiotic stress tolerance, pollen development, and inhibition of auxin transport. However, their effects on global gene expression and signaling pathways are unclear. To explore the roles of flavonol metabolites in signaling, we performed comparative transcriptome and targeted metabolite profiling of seedlings from the flavonol-deficient Arabidopsis loss-of-function mutant flavonol synthase1 (fls1) with and without exogenous supplementation of flavonol derivatives (kaempferol, quercetin, and rutin). RNA-seq results indicated that flavonols modulate various biological and metabolic pathways, with significant alterations in camalexin and aliphatic glucosinolate synthesis. Flavonols negatively regulated camalexin biosynthesis but appeared to promote the accumulation of aliphatic glucosinolates via transcription factor-mediated up-regulation of biosynthesis genes. Interestingly, upstream amino acid biosynthesis genes involved in methionine and tryptophan synthesis were altered under flavonol deficiency and exogenous supplementation. Quercetin treatment significantly up-regulated aliphatic glucosinolate biosynthesis genes compared with kaempferol and rutin. In addition, expression and metabolite analysis of the transparent testa7 mutant, which lacks hydroxylated flavonol derivatives, clarified the role of quercetin in the glucosinolate biosynthesis pathway. This study elucidates the molecular mechanisms by which flavonols interfere with signaling pathways, their molecular targets, and the multiple biological activities of flavonols in plants.
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Affiliation(s)
- Jogindra Naik
- National Institute of Plant Genome Research, Aruna Asaf Ali Marg, New Delhi 110067, India
| | - Shivi Tyagi
- National Institute of Plant Genome Research, Aruna Asaf Ali Marg, New Delhi 110067, India
| | - Ruchika Rajput
- National Institute of Plant Genome Research, Aruna Asaf Ali Marg, New Delhi 110067, India
| | - Pawan Kumar
- National Institute of Plant Genome Research, Aruna Asaf Ali Marg, New Delhi 110067, India
| | - Boas Pucker
- Faculty of Biology, Genetics and Genomics of Plants, Bielefeld University, 33615 Bielefeld, Germany
| | - Naveen C Bisht
- National Institute of Plant Genome Research, Aruna Asaf Ali Marg, New Delhi 110067, India
| | - Prashant Misra
- Plant Sciences and Agrotechnology Division, CSIR-Indian Institute of Integrative Medicine, Canal Road, Jammu 180001, India
| | - Ralf Stracke
- Faculty of Biology, Genetics and Genomics of Plants, Bielefeld University, 33615 Bielefeld, Germany
| | - Ashutosh Pandey
- National Institute of Plant Genome Research, Aruna Asaf Ali Marg, New Delhi 110067, India
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22
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Song Z, Zhao L, Ma W, Peng Z, Shi J, Pan F, Gao Y, Sui X, Rengel Z, Chen Q, Wang B. Ethylene inhibits ABA-induced stomatal closure via regulating NtMYB184-mediated flavonol biosynthesis in tobacco. JOURNAL OF EXPERIMENTAL BOTANY 2023; 74:6735-6748. [PMID: 37531314 DOI: 10.1093/jxb/erad308] [Citation(s) in RCA: 0] [Impact Index Per Article: 0] [Reference Citation Analysis] [Abstract] [Key Words] [MESH Headings] [Grants] [Track Full Text] [Subscribe] [Scholar Register] [Received: 12/06/2022] [Accepted: 08/01/2023] [Indexed: 08/04/2023]
Abstract
Stomatal movement can be regulated by ABA signaling through synthesis of reactive oxygen species (ROS) in guard cells. By contrast, ethylene triggers the biosynthesis of antioxidant flavonols to suppress ROS accumulation and prevent ABA-induced stomatal closure; however, the underlying mechanism remains largely unknown. In this study, we isolated and characterized the tobacco (Nicotiana tabacum) R2R3-MYB transcription factor NtMYB184, which belongs to the flavonol-specific SG7 subgroup. RNAi suppression and CRISPR/Cas9 mutation (myb184) of NtMYB184 in tobacco caused down-regulation of flavonol biosynthetic genes and decreased the concentration of flavonols in the leaves. Yeast one-hybrid assays, transactivation assays, EMSAs, and ChIP-qPCR demonstrated that NtMYB184 specifically binds to the promoters of flavonol biosynthetic genes via MYBPLANT motifs. NtMYB184 regulated flavonol biosynthesis in guard cells to modulate ROS homeostasis and stomatal aperture. ABA-induced ROS production was accompanied by the suppression of NtMYB184 and flavonol biosynthesis, which may accelerate ABA-induced stomatal closure. Furthermore, ethylene stimulated NtMYB184 expression and flavonol biosynthesis to suppress ROS accumulation and curb ABA-induced stomatal closure. In myb184, however, neither the flavonol and ROS concentrations nor the stomatal aperture varied between the ABA and ABA+ethylene treatments, indicating that NtMYB184 was indispensable for the antagonism between ethylene and ABA via regulating flavonol and ROS concentrations in the guard cells.
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Affiliation(s)
- Zhongbang Song
- Yunnan Academy of Tobacco Agricultural Sciences, Kunming 650021, China
| | - Lu Zhao
- Yunnan Academy of Tobacco Agricultural Sciences, Kunming 650021, China
| | - Wenna Ma
- Faculty of Life Science and Technology, Kunming University of Science and Technology, 650500, Kunming, Yunnan, China
| | - Zhongping Peng
- Faculty of Life Science and Technology, Kunming University of Science and Technology, 650500, Kunming, Yunnan, China
| | - Junli Shi
- Yunnan Academy of Tobacco Agricultural Sciences, Kunming 650021, China
| | - Feng Pan
- Faculty of Life Science and Technology, Kunming University of Science and Technology, 650500, Kunming, Yunnan, China
| | - Yulong Gao
- Yunnan Academy of Tobacco Agricultural Sciences, Kunming 650021, China
| | - Xueyi Sui
- Yunnan Academy of Tobacco Agricultural Sciences, Kunming 650021, China
| | - Zed Rengel
- UWA School of Agriculture and Environment, The University of Western Australia, 35 Stirling Highway, Perth, WA, 6009, Australia
- Institute for Adriatic Crops and Karst Reclamation, 21000 Split, Croatia
| | - Qi Chen
- Faculty of Life Science and Technology, Kunming University of Science and Technology, 650500, Kunming, Yunnan, China
| | - Bingwu Wang
- Yunnan Academy of Tobacco Agricultural Sciences, Kunming 650021, China
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Zheng M, Zhong S, Wang W, Tang Z, Bu T, Li Q. Serendipita indica Promotes the Growth of Tartary Buckwheat by Stimulating Hormone Synthesis, Metabolite Production, and Increasing Systemic Resistance. J Fungi (Basel) 2023; 9:1114. [PMID: 37998919 PMCID: PMC10671858 DOI: 10.3390/jof9111114] [Citation(s) in RCA: 0] [Impact Index Per Article: 0] [Reference Citation Analysis] [Abstract] [Key Words] [Grants] [Track Full Text] [Journal Information] [Subscribe] [Scholar Register] [Received: 10/02/2023] [Revised: 11/14/2023] [Accepted: 11/15/2023] [Indexed: 11/25/2023] Open
Abstract
The main objective of this study was to investigate the influence of Serendipita indica on the growth of Tartary buckwheat plants. This study highlighted that the roots of Tartary buckwheat can be colonized by S. indica and that this fungal endophyte improved plants height, fresh weight, dry weight, and grain yield. In the meantime, the colonization of S. indica in Tartary buckwheat leaves resulted in elevated levels of photosynthesis, plant hormone content, antioxidant enzyme activity, proline content, chlorophyll content, soluble sugars, and protein content. Additionally, the introduction of S. indica to Tartary buckwheat roots led to a substantial rise in the levels of flavonoids and phenols found in the leaves and seeds of Tartary buckwheat. In addition, S. indica colonization reduced the content of malondialdehyde and hydrogen peroxide when compared to non-colonized plants. Importantly, the drought tolerance of Tartary buckwheat plants is increased, which benefits from physiology and bio-chemical changes in plants after S. indica colonized. In conclusion, we have shown that S. indica can improve systematic resistance and promote the growth of Tartary buckwheat by enhancing the photosynthetic capacity of Tartary buckwheat, inducing the production of IAA, increasing the content of secondary metabolites such as total phenols and total flavonoids, and improving the antioxidant enzyme activity of the plant.
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Affiliation(s)
| | | | | | | | | | - Qingfeng Li
- College of Life Sciences, Sichuan Agricultural University, Ya’an 625014, China; (M.Z.); (S.Z.); (W.W.); (Z.T.); (T.B.)
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24
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Lu T, Wang X, Cui X, Li J, Xu J, Xu P, Wan J. Physiological and metabolomic analyses reveal that Fe 3O 4 nanoparticles ameliorate cadmium and arsenic toxicity in Panax notoginseng. ENVIRONMENTAL POLLUTION (BARKING, ESSEX : 1987) 2023; 337:122578. [PMID: 37726032 DOI: 10.1016/j.envpol.2023.122578] [Citation(s) in RCA: 7] [Impact Index Per Article: 7.0] [Reference Citation Analysis] [Abstract] [Key Words] [MESH Headings] [Track Full Text] [Subscribe] [Scholar Register] [Received: 07/30/2022] [Revised: 08/04/2023] [Accepted: 09/16/2023] [Indexed: 09/21/2023]
Abstract
Heavy metal(loid)-contaminated available arable land seriously affects crop development and growth. Engineered nanomaterials have great potential in mitigating toxic metal(loid) stress in plants. However, there are few details of nanoparticles (NPs) involved in Panax notoginseng response to cadmium (Cd) and arsenic (As). Herein, integrating physiological and metabolomic analyses, we investigated the effects of Fe3O4 NPs on plant growth and Cd/As responses in P. notoginseng. Cd/As treatment caused severe growth inhibition. However, foliar application of Fe3O4 NPs increased beneficial elements in the roots and/or leaves, decreased Cd/As content by 10.38% and 20.41% in the roots, reduced membrane damage and regulated antioxidant enzyme activity, thereby alleviating Cd/As-induced growth inhibition, as indicated by increased shoot fresh weight (FW), the rootlet length and root FW by 40.14%, 15.74%, and 46.70% under Cd stress and promoted the shoot FW by 27.00% under As toxicity. Metabolomic analysis showed that 227 and 295 differentially accumulated metabolites (DAMs) were identified, and their accumulation patterns were classified into 8 and 6 clusters in the roots and leaves, respectively. Fe3O4 NPs altered metabolites significantly involved in key pathways, including amino sugar and nucleotide sugar metabolism, flavonoid biosynthesis and phenylalanine metabolism, thus mediating the trade-off between plant growth and defense under stress. Interestingly, Fe3O4 NPs recovered more Cd/As-induced DAMs to normal levels, further supporting that Fe3O4 NPs positively affected seedling growth under metal(loid)s stress. In addition, Fe3O4 NPs altered terpenoids when the seedlings were subjected to Cd/As stress, thus affecting their potential medicinal value. This study provides insights into using nanoparticles to improve potential active ingredients of medicinal plants in metal(loid)-contaminated areas.
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Affiliation(s)
- Tianquan Lu
- CAS Key Laboratory of Tropical Plant Resources and Sustainable Use, Xishuangbanna Tropical Botanical Garden, Chinese Academy of Sciences, Mengla, 666303, China; Center of Economic Botany, Core Botanical Gardens, Chinese Academy of Sciences, Mengla, 666303, China; University of Chinese Academy of Sciences, Beijing, 100049, China
| | - Xiaoning Wang
- Sanya Institute, Hainan Academy of Agricultural Sciences, Sanya, 572025, China; Key Laboratory for Crop Breeding of Hainan Province, Haikou, 571100, China
| | - Xianliang Cui
- College of Biology and Chemistry, Pu'er University, Pu'er, 665000, China
| | - Jifang Li
- CAS Key Laboratory of Tropical Plant Resources and Sustainable Use, Xishuangbanna Tropical Botanical Garden, Chinese Academy of Sciences, Mengla, 666303, China
| | - Jin Xu
- College of Horticulture, Shanxi Agricultural University, Taigu, 030801, China
| | - Peng Xu
- CAS Key Laboratory of Tropical Plant Resources and Sustainable Use, Xishuangbanna Tropical Botanical Garden, Chinese Academy of Sciences, Mengla, 666303, China; Center of Economic Botany, Core Botanical Gardens, Chinese Academy of Sciences, Mengla, 666303, China
| | - Jinpeng Wan
- CAS Key Laboratory of Tropical Plant Resources and Sustainable Use, Xishuangbanna Tropical Botanical Garden, Chinese Academy of Sciences, Mengla, 666303, China; Center of Economic Botany, Core Botanical Gardens, Chinese Academy of Sciences, Mengla, 666303, China.
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Feng J, Zhu C, Cao J, Liu C, Zhang J, Cao F, Zhou X. Genome-wide identification and expression analysis of the NRT genes in Ginkgo biloba under nitrate treatment reveal the potential roles during calluses browning. BMC Genomics 2023; 24:633. [PMID: 37872493 PMCID: PMC10594704 DOI: 10.1186/s12864-023-09732-4] [Citation(s) in RCA: 0] [Impact Index Per Article: 0] [Reference Citation Analysis] [Abstract] [Key Words] [MESH Headings] [Grants] [Track Full Text] [Journal Information] [Subscribe] [Scholar Register] [Received: 05/15/2023] [Accepted: 10/11/2023] [Indexed: 10/25/2023] Open
Abstract
Nitrate is a primary nitrogen source for plant growth, and previous studies have indicated a correlation between nitrogen and browning. Nitrate transporters (NRTs) are crucial in nitrate allocation. Here, we utilized a genome-wide approach to identify and analyze the expression pattern of 74 potential GbNRTs under nitrate treatments during calluses browning in Ginkgo, including 68 NITRATE TRANSPORTER 1 (NRT1)/PEPTIDE TRANSPORTER (PTR) (NPF), 4 NRT2 and 2 NRT3. Conserved domains, motifs, phylogeny, and cis-acting elements (CREs) were analyzed to demonstrate the evolutionary conservation and functional diversity of GbNRTs. Our analysis showed that the NPF family was divided into eight branches, with the GbNPF2 and GbNPF6 subfamilies split into three groups. Each GbNRT contained 108-214 CREs of 19-36 types, especially with binding sites of auxin and transcription factors v-myb avian myeloblastosis viral oncogene homolog (MYB) and basic helix-loop-helix (bHLH). The E1X1X2E2R motif had significant variations in GbNPFs, indicating changes in the potential dynamic proton transporting ability. The expression profiles of GbNRTs indicated that they may function in regulating nitrate uptake and modulating the signaling of auxin and polyphenols biosynthesis, thereby affecting browning in Ginkgo callus induction. These findings provide a better understanding of the role of NRTs during NO3- uptake and utilization in vitro culture, which is crucial to prevent browning and develop an efficient regeneration and suspension production system in Ginkgo.
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Affiliation(s)
- Jin Feng
- State Key Laboratory of Subtropical Silviculture, Zhejiang A&F University, Lin'an, Hangzhou, 311300, Zhejiang, China
| | - Can Zhu
- State Key Laboratory of Subtropical Silviculture, Zhejiang A&F University, Lin'an, Hangzhou, 311300, Zhejiang, China
| | - Jiaqi Cao
- State Key Laboratory of Subtropical Silviculture, Zhejiang A&F University, Lin'an, Hangzhou, 311300, Zhejiang, China
| | - Chen Liu
- State Key Laboratory of Subtropical Silviculture, Zhejiang A&F University, Lin'an, Hangzhou, 311300, Zhejiang, China
| | - Jiaqi Zhang
- State Key Laboratory of Subtropical Silviculture, Zhejiang A&F University, Lin'an, Hangzhou, 311300, Zhejiang, China
| | - Fuliang Cao
- State Key Laboratory of Subtropical Silviculture, Zhejiang A&F University, Lin'an, Hangzhou, 311300, Zhejiang, China
- Co-Innovation Center for Sustainable Forestry in Southern China, College of Forestry, Nanjing Forestry University, Nanjing, 210037, China
| | - Xiaohong Zhou
- State Key Laboratory of Subtropical Silviculture, Zhejiang A&F University, Lin'an, Hangzhou, 311300, Zhejiang, China.
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Wu L, Yang N, Guo M, Zhang D, Ghiladi RA, Bayram H, Wang J. The role of sound stimulation in production of plant secondary metabolites. NATURAL PRODUCTS AND BIOPROSPECTING 2023; 13:40. [PMID: 37847483 PMCID: PMC10581969 DOI: 10.1007/s13659-023-00409-9] [Citation(s) in RCA: 2] [Impact Index Per Article: 2.0] [Reference Citation Analysis] [Abstract] [Key Words] [Grants] [Track Full Text] [Subscribe] [Scholar Register] [Received: 09/27/2023] [Accepted: 10/11/2023] [Indexed: 10/18/2023]
Abstract
Sound vibration is one of natural stimuli trigging physiological changes in plants. Recent studies showed that sound waves stimulated production of a variety of plant secondary metabolites, including flavonoids, in order to enhance seed germination, flowering, growth or defense. In this review, we examine the potential role of sound stimulation on the biosynthesis of secondary metabolites and the followed cascade of physiological changes in plants, from the perspective of transcriptional regulation and epigenetic regulation for the first time. A systematic summary showed that a wide range of factors may regulate the production of secondary metabolites, including plant species, growth stage, sound types, sound frequency, sound intensity level and exposure time, etc. Biochemical and physiological changes due to sound stimulation were thoroughly summarized as well, for secondary metabolites can also act as a free radical scavenger, or a hormone signaling molecule. We also discussed the limits of previous studies, and the future application of sound waves in biosynthesis of plant secondary metabolites.
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Affiliation(s)
- Li Wu
- Department of Music, South-Central Minzu University, Wuhan, Hubei, China
| | - Ning Yang
- Cooperative Innovation Center of Industrial Fermentation, Ministry of Education & Hubei Province, Hubei University of Technology, Wuhan, Hubei, China
| | - Meng Guo
- Cooperative Innovation Center of Industrial Fermentation, Ministry of Education & Hubei Province, Hubei University of Technology, Wuhan, Hubei, China
| | - Didi Zhang
- Department of Music, South-Central Minzu University, Wuhan, Hubei, China
| | - Reza A Ghiladi
- Department of Chemistry, North Carolina State University, Raleigh, NC, USA
| | - Hasan Bayram
- Department of Pulmonary Medicine, Koç University Hospital, Koç University, Istanbul, Turkey
| | - Jun Wang
- Cooperative Innovation Center of Industrial Fermentation, Ministry of Education & Hubei Province, Hubei University of Technology, Wuhan, Hubei, China.
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Broucke E, Dang TTV, Li Y, Hulsmans S, Van Leene J, De Jaeger G, Hwang I, Wim VDE, Rolland F. SnRK1 inhibits anthocyanin biosynthesis through both transcriptional regulation and direct phosphorylation and dissociation of the MYB/bHLH/TTG1 MBW complex. THE PLANT JOURNAL : FOR CELL AND MOLECULAR BIOLOGY 2023; 115:1193-1213. [PMID: 37219821 DOI: 10.1111/tpj.16312] [Citation(s) in RCA: 8] [Impact Index Per Article: 8.0] [Reference Citation Analysis] [Abstract] [Key Words] [MESH Headings] [Track Full Text] [Subscribe] [Scholar Register] [Received: 12/02/2022] [Revised: 04/21/2023] [Accepted: 05/18/2023] [Indexed: 05/24/2023]
Abstract
Plants have evolved an extensive specialized secondary metabolism. The colorful flavonoid anthocyanins, for example, not only stimulate flower pollination and seed dispersal, but also protect different tissues against high light, UV and oxidative stress. Their biosynthesis is highly regulated by environmental and developmental cues and induced by high sucrose levels. Expression of the biosynthetic enzymes involved is controlled by a transcriptional MBW complex, comprising (R2R3) MYB- and bHLH-type transcription factors and the WD40 repeat protein TTG1. Anthocyanin biosynthesis is not only useful, but also carbon- and energy-intensive and non-vital. Consistently, the SnRK1 protein kinase, a metabolic sensor activated in carbon- and energy-depleting stress conditions, represses anthocyanin biosynthesis. Here we show that Arabidopsis SnRK1 represses MBW complex activity both at the transcriptional and post-translational level. In addition to repressing expression of the key transcription factor MYB75/PAP1, SnRK1 activity triggers MBW complex dissociation, associated with loss of target promoter binding, MYB75 protein degradation and nuclear export of TTG1. We also provide evidence for direct interaction with and phosphorylation of multiple MBW complex proteins. These results indicate that repression of expensive anthocyanin biosynthesis is an important strategy to save energy and redirect carbon flow to more essential processes for survival in metabolic stress conditions.
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Affiliation(s)
- Ellen Broucke
- Laboratory of Molecular Plant Biology, Biology Department, KU Leuven, Kasteelpark Arenberg 31, 3001 Heverlee, Leuven, Belgium
- KU Leuven Plant Institute (LPI), Kasteelpark Arenberg 31, 3001 Heverlee, Leuven, Belgium
| | - Thi Tuong Vi Dang
- Laboratory of Molecular Plant Biology, Biology Department, KU Leuven, Kasteelpark Arenberg 31, 3001 Heverlee, Leuven, Belgium
- KU Leuven Plant Institute (LPI), Kasteelpark Arenberg 31, 3001 Heverlee, Leuven, Belgium
- Department of Life Sciences, POSTECH Biotech Center, Pohang University of Science and Technology, Pohang, 37673, South Korea
| | - Yi Li
- Laboratory of Molecular Plant Biology, Biology Department, KU Leuven, Kasteelpark Arenberg 31, 3001 Heverlee, Leuven, Belgium
- KU Leuven Plant Institute (LPI), Kasteelpark Arenberg 31, 3001 Heverlee, Leuven, Belgium
| | - Sander Hulsmans
- Laboratory of Molecular Plant Biology, Biology Department, KU Leuven, Kasteelpark Arenberg 31, 3001 Heverlee, Leuven, Belgium
- KU Leuven Plant Institute (LPI), Kasteelpark Arenberg 31, 3001 Heverlee, Leuven, Belgium
| | - Jelle Van Leene
- Department of Plant Biotechnology and Bioinformatics, Ghent University, 9052, Ghent, Belgium
- VIB-UGent Center for Plant Systems Biology, 9052, Ghent, Belgium
| | - Geert De Jaeger
- Department of Plant Biotechnology and Bioinformatics, Ghent University, 9052, Ghent, Belgium
- VIB-UGent Center for Plant Systems Biology, 9052, Ghent, Belgium
| | - Ildoo Hwang
- Department of Life Sciences, POSTECH Biotech Center, Pohang University of Science and Technology, Pohang, 37673, South Korea
| | - Van den Ende Wim
- Laboratory of Molecular Plant Biology, Biology Department, KU Leuven, Kasteelpark Arenberg 31, 3001 Heverlee, Leuven, Belgium
- KU Leuven Plant Institute (LPI), Kasteelpark Arenberg 31, 3001 Heverlee, Leuven, Belgium
| | - Filip Rolland
- Laboratory of Molecular Plant Biology, Biology Department, KU Leuven, Kasteelpark Arenberg 31, 3001 Heverlee, Leuven, Belgium
- KU Leuven Plant Institute (LPI), Kasteelpark Arenberg 31, 3001 Heverlee, Leuven, Belgium
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Muhammad D, Alameldin HF, Oh S, Montgomery BL, Warpeha KM. Arogenate dehydratases: unique roles in light-directed development during the seed-to-seedling transition in Arabidopsis thaliana. FRONTIERS IN PLANT SCIENCE 2023; 14:1220732. [PMID: 37600200 PMCID: PMC10433759 DOI: 10.3389/fpls.2023.1220732] [Citation(s) in RCA: 1] [Impact Index Per Article: 1.0] [Reference Citation Analysis] [Abstract] [Key Words] [Track Full Text] [Figures] [Subscribe] [Scholar Register] [Received: 05/11/2023] [Accepted: 07/11/2023] [Indexed: 08/22/2023]
Abstract
The seed-to-seedling transition is impacted by changes in nutrient availability and light profiles, but is still poorly understood. Phenylalanine affects early seedling development; thus, the roles of arogenate dehydratases (ADTs), which catalyze phenylalanine formation, were studied in germination and during the seed-to-seedling transition by exploring the impact of light conditions and specific hormone responses in adt mutants of Arabidopsis thaliana. ADT gene expression was assessed in distinct tissues and for light-quality dependence in seedlings for each of the six-member ADT gene family. Mutant adt seedlings were evaluated relative to wild type for germination, photomorphogenesis (blue, red, far red, white light, and dark conditions), anthocyanin accumulation, and plastid development-related phenotypes. ADT proteins are expressed in a light- and tissue-specific manner in transgenic seedlings. Among the analyzed adt mutants, adt3, adt5, and adt6 exhibit significant defects in germination, hypocotyl elongation, and root development responses during the seed-to-seedling transition. Interestingly, adt5 exhibits a light-dependent disruption in plastid development, similar to a phyA mutant. These data indicate interactions between photoreceptors, hormones, and regulation of phenylalanine pools in the process of seedling establishment. ADT5 and ADT6 may play important roles in coordinating hormone and light signals for normal early seedling development.
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Affiliation(s)
- DurreShahwar Muhammad
- Department of Biological Science, University of Illinois at Chicago, Chicago, IL, United States
| | - Hussien F. Alameldin
- MSU-DOE Plant Research Lab, Plant Biology Laboratories, East Lansing, MI, United States
- Agricultural Genetic Engineering Research Institute (AGERI), Agriculture Research Center (ARC), Giza, Egypt
| | - Sookyung Oh
- MSU-DOE Plant Research Lab, Plant Biology Laboratories, East Lansing, MI, United States
| | - Beronda L. Montgomery
- MSU-DOE Plant Research Lab, Plant Biology Laboratories, East Lansing, MI, United States
- Cell and Molecular Biology Program, Michigan State University, East Lansing, MI, United States
- Department of Biochemistry and Molecular Biology, Michigan State University, East Lansing, MI, United States
- Department of Microbiology and Molecular Genetics, Michigan State University, East Lansing, MI, United States
- Department of Biology, Grinnell College, Grinnell, IA, United States
| | - Katherine M. Warpeha
- Department of Biological Science, University of Illinois at Chicago, Chicago, IL, United States
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Li Z, Ahammed GJ. Hormonal regulation of anthocyanin biosynthesis for improved stress tolerance in plants. PLANT PHYSIOLOGY AND BIOCHEMISTRY : PPB 2023; 201:107835. [PMID: 37348389 DOI: 10.1016/j.plaphy.2023.107835] [Citation(s) in RCA: 17] [Impact Index Per Article: 17.0] [Reference Citation Analysis] [Abstract] [Key Words] [MESH Headings] [Track Full Text] [Subscribe] [Scholar Register] [Received: 04/05/2023] [Revised: 06/06/2023] [Accepted: 06/12/2023] [Indexed: 06/24/2023]
Abstract
Due to unprecedented climate change, rapid industrialization and increasing use of agrochemicals, abiotic stress, such as drought, low temperature, high salinity and heavy metal pollution, has become an increasingly serious problem in global agriculture. Anthocyanins, an important plant pigment, are synthesized through the phenylpropanoid pathway and have a variety of physiological and ecological functions, providing multifunctional and effective protection for plants under stress. Foliar anthocyanin accumulation often occurs under abiotic stress including high light, cold, drought, salinity, nutrient deficiency and heavy metal stress, causing leaf reddening or purpling in many plant species. Anthocyanins are used as sunscreens and antioxidants to scavenge reactive oxygen species (ROS), as metal(loid) chelators to mitigate heavy metal stress, and as crucial molecules with a role in delaying leaf senescence. In addition to environmental factors, anthocyanin synthesis is affected by various endogenous factors. Plant hormones such as abscisic acid, jasmonic acid, ethylene and gibberellin have been shown to be involved in regulating anthocyanin synthesis either positively or negatively. Particularly when plants are under abiotic stress, several plant hormones can induce foliar anthocyanin synthesis to enhance plant stress resistance. In this review, we revisit the role of plant hormones in anthocyanin biosynthesis and the mechanism of plant hormone-mediated anthocyanin accumulation and abiotic stress tolerance. We conclude that enhancing anthocyanin content with plant hormones could be a prospective management strategy for improving plant stress resistance, but extensive further research is essentially needed to provide future guidance for practical crop production.
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Affiliation(s)
- Zhe Li
- College of Horticulture and Plant Protection, Henan University of Science and Technology, Luoyang, 471023, PR China
| | - Golam Jalal Ahammed
- College of Horticulture and Plant Protection, Henan University of Science and Technology, Luoyang, 471023, PR China; Henan International Joint Laboratory of Stress Resistance Regulation and Safe Production of Protected Vegetables, Luoyang, 471023, PR China; Henan Engineering Technology Research Center for Horticultural Crop Safety and Disease Control, Luoyang, 471023, PR China.
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30
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Jiang X, Lai S, Kong D, Hou X, Shi Y, Fu Z, Liu Y, Gao L, Xia T. Al-induced CsUGT84J2 enhances flavonol and auxin accumulation to promote root growth in tea plants. HORTICULTURE RESEARCH 2023; 10:uhad095. [PMID: 37350798 PMCID: PMC10282599 DOI: 10.1093/hr/uhad095] [Citation(s) in RCA: 0] [Impact Index Per Article: 0] [Reference Citation Analysis] [Abstract] [Track Full Text] [Figures] [Subscribe] [Scholar Register] [Received: 10/31/2022] [Accepted: 04/25/2023] [Indexed: 06/24/2023]
Abstract
Although Al is not necessary or even toxic to most plants, it is beneficial for the growth of tea plants. However, the mechanism through which Al promotes root growth in tea plants remains unclear. In the present study, we found that flavonol glycoside levels in tea roots increased following Al treatment, and the Al-induced UDP glycosyltransferase CsUGT84J2 was involved in this mechanism. Enzyme activity assays revealed that rCsUGT84J2 exhibited catalytic activity on multiple types of substrates, including phenolic acids, flavonols, and auxins in vitro. Furthermore, metabolic analysis with UPLC-QqQ-MS/MS revealed significantly increased flavonol and auxin glycoside accumulation in CsUGT84J2-overexpressing Arabidopsis thaliana. In addition, the expression of genes involved in the flavonol pathway as well as in the auxin metabolism, transport, and signaling pathways was remarkably enhanced. Additionally, lateral root growth and exogenous Al stress tolerance were significantly improved in transgenic A. thaliana. Moreover, gene expression and metabolic accumulation related to phenolic acids, flavonols, and auxin were upregulated in CsUGT84J2-overexpressing tea plants but downregulated in CsUGT84J2-silenced tea plants. In conclusion, Al treatment induced CsUGT84J2 expression, mediated flavonol and auxin glycosylation, and regulated endogenous auxin homeostasis in tea roots, thereby promoting the growth of tea plants. Our findings lay the foundation for studying the precise mechanisms through which Al promotes the growth of tea plants.
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Affiliation(s)
| | | | - Dexu Kong
- State Key Laboratory of Tea Plant Biology and Utilization, Anhui Agricultural University, Hefei, Anhui, China
| | - Xiaohan Hou
- State Key Laboratory of Tea Plant Biology and Utilization, Anhui Agricultural University, Hefei, Anhui, China
| | - Yufeng Shi
- State Key Laboratory of Tea Plant Biology and Utilization, Anhui Agricultural University, Hefei, Anhui, China
| | - Zhouping Fu
- State Key Laboratory of Tea Plant Biology and Utilization, Anhui Agricultural University, Hefei, Anhui, China
| | - Yajun Liu
- School of Life Science, Anhui Agricultural University, Hefei, Anhui, China
| | | | - Tao Xia
- Corresponding author: E-mail:
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31
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Mahmud AR, Ema TI, Siddiquee MFR, Shahriar A, Ahmed H, Mosfeq-Ul-Hasan M, Rahman N, Islam R, Uddin MR, Mizan MFR. Natural flavonols: actions, mechanisms, and potential therapeutic utility for various diseases. BENI-SUEF UNIVERSITY JOURNAL OF BASIC AND APPLIED SCIENCES 2023; 12:47. [PMID: 37216013 PMCID: PMC10183303 DOI: 10.1186/s43088-023-00387-4] [Citation(s) in RCA: 6] [Impact Index Per Article: 6.0] [Reference Citation Analysis] [Abstract] [Key Words] [Track Full Text] [Figures] [Journal Information] [Subscribe] [Scholar Register] [Received: 01/13/2023] [Accepted: 05/07/2023] [Indexed: 05/24/2023] Open
Abstract
Background Flavonols are phytoconstituents of biological and medicinal importance. In addition to functioning as antioxidants, flavonols may play a role in antagonizing diabetes, cancer, cardiovascular disease, and viral and bacterial diseases. Quercetin, myricetin, kaempferol, and fisetin are the major dietary flavonols. Quercetin is a potent scavenger of free radicals, providing protection from free radical damage and oxidation-associated diseases. Main body of the abstract An extensive literature review of specific databases (e.g., Pubmed, google scholar, science direct) were conducted using the keywords "flavonol," "quercetin," "antidiabetic," "antiviral," "anticancer," and "myricetin." Some studies concluded that quercetin is a promising antioxidant agent while kaempferol could be effective against human gastric cancer. In addition, kaempferol prevents apoptosis of pancreatic beta-cells via boosting the function and survival rate of the beta-cells, leading to increased insulin secretion. Flavonols also show potential as alternatives to conventional antibiotics, restricting viral infection by antagonizing the envelope proteins to block viral entry. Short conclusion There is substantial scientific evidence that high consumption of flavonols is associated with reduced risk of cancer and coronary diseases, free radical damage alleviation, tumor growth prevention, and insulin secretion improvement, among other diverse health benefits. Nevertheless, more studies are required to determine the appropriate dietary concentration, dose, and type of flavonol for a particular condition to prevent any adverse side effects.
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Affiliation(s)
- Aar Rafi Mahmud
- Department of Biochemistry and Molecular Biology, Mawlana Bhashani Science and Technology University, Santosh, Tangail, 1902 Bangladesh
| | - Tanzila Ismail Ema
- Department of Biochemistry and Microbiology, North South University, Dhaka, 1229 Bangladesh
| | | | - Asif Shahriar
- Department of Microbiology, Stamford University Bangladesh, 51 Siddeswari Road, Dhaka, 1217 Bangladesh
| | - Hossain Ahmed
- Department of Biotechnology and Genetic Engineering, University of Development Alternative (UODA), Dhaka, 1208 Bangladesh
| | - Md. Mosfeq-Ul-Hasan
- Hajee Mohammad Danesh Science and Technology University, Dinajpur, 5200 Bangladesh
| | - Nova Rahman
- Department of Biochemistry and Molecular Biology, Jahangirnagar University, Savar, Dhaka, 1342 Bangladesh
| | - Rahatul Islam
- Department of Genetic Engineering and Biotechnology, Shahjalal University of Science and Technology, Sylhet, Bangladesh
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Daryanavard H, Postiglione AE, Mühlemann JK, Muday GK. Flavonols modulate plant development, signaling, and stress responses. CURRENT OPINION IN PLANT BIOLOGY 2023; 72:102350. [PMID: 36870100 PMCID: PMC10372886 DOI: 10.1016/j.pbi.2023.102350] [Citation(s) in RCA: 30] [Impact Index Per Article: 30.0] [Reference Citation Analysis] [Abstract] [Key Words] [MESH Headings] [Grants] [Track Full Text] [Subscribe] [Scholar Register] [Received: 12/14/2022] [Revised: 01/18/2023] [Accepted: 02/02/2023] [Indexed: 06/11/2023]
Abstract
Flavonols are plant-specialized metabolites with important functions in plant growth and development. Isolation and characterization of mutants with reduced flavonol levels, especially the transparent testa mutants in Arabidopsis thaliana, have contributed to our understanding of the flavonol biosynthetic pathway. These mutants have also uncovered the roles of flavonols in controlling development in above- and below-ground tissues, notably in the regulation of root architecture, guard cell signaling, and pollen development. In this review, we present recent progress made towards a mechanistic understanding of flavonol function in plant growth and development. Specifically, we highlight findings that flavonols act as reactive oxygen species (ROS) scavengers and inhibitors of auxin transport in diverse tissues and cell types to modulate plant growth and development and responses to abiotic stresses.
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Affiliation(s)
- Hana Daryanavard
- Climate Resilient Crop Production Laboratory, Division of Crop Biotechnics, Department of Biosystems, Katholieke Universiteit (KU) Leuven, Leuven, Belgium
| | - Anthony E Postiglione
- Department of Biology, Center for Molecular Signaling, Wake Forest University, Winston-Salem, NC, USA
| | - Joëlle K Mühlemann
- Climate Resilient Crop Production Laboratory, Division of Crop Biotechnics, Department of Biosystems, Katholieke Universiteit (KU) Leuven, Leuven, Belgium; Leuven Plant Institute, KU Leuven, Leuven, Belgium
| | - Gloria K Muday
- Department of Biology, Center for Molecular Signaling, Wake Forest University, Winston-Salem, NC, USA.
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Yang F, Wang T, Guo Q, Zou Q, Yu S. The CmMYB3 transcription factors isolated from the Chrysanthemum morifolium regulate flavonol biosynthesis in Arabidopsis thaliana. PLANT CELL REPORTS 2023; 42:791-803. [PMID: 36840758 DOI: 10.1007/s00299-023-02991-1] [Citation(s) in RCA: 0] [Impact Index Per Article: 0] [Reference Citation Analysis] [Abstract] [Key Words] [MESH Headings] [Track Full Text] [Subscribe] [Scholar Register] [Received: 11/03/2022] [Accepted: 01/25/2023] [Indexed: 06/18/2023]
Abstract
Chrysanthemum morifolium MYB3 factors are transcriptional activators for the regulation of flavonol biosynthesis. Flavonol was not only the critical secondary metabolite participating in the growth and development of plants but also the main active ingredient in medicinal chrysanthemum. However, few pieces of research revealed the transcriptional regulation of flavonol biosynthesis in Chrysanthemum morifolium. Here, we isolated two CmMYB3 transcription factors (CmMYB3a and CmMYB3b) from the capitulum of Chrysanthemum morifolium cv 'Hangju'. According to the sequence characteristics, the CmMYB3a and CmMYB3b belonged to the R2R3-MYB subgroup 7, whose members were often reported to regulate flavonol biosynthesis positively. CmMYB3a and CmMYB3b factors were identified to localize in the nucleus by subcellular localization assay. Besides, both of them have obvious transcriptional self-activation activity in their C-terminal. After the overexpression of CmMYB3 genes in Nicotiana benthamiana and Arabidopsis thaliana, the flavonol contents in plants were increased, and the expression of AtCHS, AtCHI, AtF3H, and AtFLS genes in A. thaliana was also improved. Interestingly, the CmMYB3a factor had stronger functions in improving flavonol contents and related gene expression levels than CmMYB3b. The interaction analysis between transcription factors and promoters suggested that CmMYB3 could bind and activate the promoters of CmCHI and CmFLS genes in C. morifolium, and CmMYB3a also functioned more powerfully. Overall, these results indicated that CmMYB3a and CmMYB3b work as transcriptional activators in controlling flavonol biosynthesis.
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Affiliation(s)
- Feng Yang
- Institute of Chinese Medicinal Materials, Nanjing Agricultural University, Nanjing, 210095, People's Republic of China
| | - Tao Wang
- Institute of Chinese Medicinal Materials, Nanjing Agricultural University, Nanjing, 210095, People's Republic of China
| | - Qiaosheng Guo
- Institute of Chinese Medicinal Materials, Nanjing Agricultural University, Nanjing, 210095, People's Republic of China.
| | - Qingjun Zou
- Institute of Chinese Medicinal Materials, Nanjing Agricultural University, Nanjing, 210095, People's Republic of China
| | - Shuyan Yu
- Institute of Chinese Medicinal Materials, Nanjing Agricultural University, Nanjing, 210095, People's Republic of China
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Saxena S, Pal L, Naik J, Singh Y, Verma PK, Chattopadhyay D, Pandey A. The R2R3-MYB-SG7 transcription factor CaMYB39 orchestrates surface phenylpropanoid metabolism and pathogen resistance in chickpea. THE NEW PHYTOLOGIST 2023; 238:798-816. [PMID: 36683398 DOI: 10.1111/nph.18758] [Citation(s) in RCA: 1] [Impact Index Per Article: 1.0] [Reference Citation Analysis] [Abstract] [Key Words] [MESH Headings] [Track Full Text] [Subscribe] [Scholar Register] [Received: 08/31/2022] [Accepted: 01/07/2023] [Indexed: 05/20/2023]
Abstract
Flavonoids are important plant pigments and defense compounds; understanding the transcriptional regulation of flavonoid biosynthesis may enable engineering crops with improved nutrition and stress tolerance. Here, we characterize R2R3-MYB domain subgroup 7 transcription factor CaMYB39, which regulates flavonol biosynthesis primarily in chickpea trichomes. CaMYB39 overexpression in chickpea was accompanied by a change in flux availability for the phenylpropanoid pathway, particularly flavonol biosynthesis. Lines overexpressing CaMYB39 showed higher isoflavonoid levels, suggesting its role in regulating isoflavonoid pathway. CaMYB39 transactivates the transcription of early flavonoid biosynthetic genes (EBG). FLAVONOL SYNTHASE2, an EBG, encodes an enzyme with higher substrate specificity for dihydrokaempferol than other dihydroflavonols explaining the preferential accumulation of kaempferol derivatives as prominent flavonols in chickpea. Interestingly, CaMYB39 overexpression increased trichome density and enhanced the accumulation of diverse flavonol derivatives in trichome-rich tissues. Moreover, CaMYB39 overexpression reduced reactive oxygen species levels and induced defense gene expression which aids in partially blocking the penetration efficiency of the fungal pathogen, Ascochyta rabiei, resulting in lesser symptoms, thus establishing its role against deadly Ascochyta blight (AB) disease. Overall, our study reports an instance where R2R3-MYB-SG7 member, CaMYB39, besides regulating flavonol biosynthesis, modulates diverse pathways like general phenylpropanoid, isoflavonoid, trichome density, and defense against necrotrophic fungal infection in chickpea.
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Affiliation(s)
- Samiksha Saxena
- National Institute of Plant Genome Research, Aruna Asaf Ali Marg, New Delhi, 110067, India
| | - Lalita Pal
- National Institute of Plant Genome Research, Aruna Asaf Ali Marg, New Delhi, 110067, India
| | - Jogindra Naik
- National Institute of Plant Genome Research, Aruna Asaf Ali Marg, New Delhi, 110067, India
| | - Yeshveer Singh
- National Institute of Plant Genome Research, Aruna Asaf Ali Marg, New Delhi, 110067, India
| | - Praveen Kumar Verma
- National Institute of Plant Genome Research, Aruna Asaf Ali Marg, New Delhi, 110067, India
| | - Debasis Chattopadhyay
- National Institute of Plant Genome Research, Aruna Asaf Ali Marg, New Delhi, 110067, India
| | - Ashutosh Pandey
- National Institute of Plant Genome Research, Aruna Asaf Ali Marg, New Delhi, 110067, India
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Wu J, Ge F, Zhu L, Liu N. Potential Toxic Mechanisms of Neonicotinoid Insecticides in Rice: Inhibiting Auxin-Mediated Signal Transduction. ENVIRONMENTAL SCIENCE & TECHNOLOGY 2023; 57:4852-4862. [PMID: 36926880 DOI: 10.1021/acs.est.2c09352] [Citation(s) in RCA: 18] [Impact Index Per Article: 18.0] [Reference Citation Analysis] [Abstract] [Key Words] [MESH Headings] [Track Full Text] [Subscribe] [Scholar Register] [Indexed: 06/18/2023]
Abstract
Inappropriate application of pesticides not only causes sub-lethal effects on ecosystem service providers but also reduces crop yield and quality. As a xenobiotic signal molecule, pesticides may interact with signal transduction receptors in crops, resulting in oxidative damage and even metabolic perturbations. We discovered that three neonicotinoid insecticides (NIs), namely, imidacloprid, thiamethoxam, and clothianidin, at 0.06-0.12 kg ai/ha significantly inhibited the auxin signal pathway in rice leaves, thereby reducing the intracellular auxin (IAA) content. Molecular simulation further confirmed that NIs occupied the binding site where auxin transporter-like proteins 1 (LAX11) and 2 (LAX12), in which Thr253 and Asn66 of LAX11, as well as Thr244 and Asn57 of LAX12, were bound to the nitroguanidine of NIs via H-bonds. Meanwhile, Asn66 of LAX11 and Asn57 of LAX12 interacted with nitroguanidine via aromatic H-bonds. Moreover, phenylpropanoid biosynthesis was significantly disturbed because of the inhibited auxin signal pathway. Notably, peroxidase-coding genes were downregulated with a maximum value greater than 10-fold, resulting in decreased antioxidant metabolites flavone (37.82%) and lignin content (20.15%). Ultimately, rice biomass was reduced by up to 25.41% due to the decline in IAA content and antioxidant capacity. This study deeply explored the molecular mechanism of metabolic perturbations in crops stressed by pesticides, thus providing a scientific basis for pesticide environmental risk assessment and agricultural product safety.
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Affiliation(s)
- Jianjian Wu
- Department of Environment, College of Environment and Resources, Xiangtan University, Xiangtan 411105, China
| | - Fei Ge
- Department of Environment, College of Environment and Resources, Xiangtan University, Xiangtan 411105, China
| | - Lizhong Zhu
- College of Environmental and Resource Sciences, Zhejiang University, Hangzhou, Zhejiang 310058, China
- Zhejiang Provincial Key Laboratory of Organic Pollution Process and Control, Hangzhou, Zhejiang 310058, China
| | - Na Liu
- Department of Environment, College of Environment and Resources, Xiangtan University, Xiangtan 411105, China
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Xu W, Xu X, Han R, Wang X, Wang K, Qi G, Ma P, Komatsuda T, Liu C. Integrated transcriptome and metabolome analysis reveals that flavonoids function in wheat resistance to powdery mildew. FRONTIERS IN PLANT SCIENCE 2023; 14:1125194. [PMID: 36818890 PMCID: PMC9929363 DOI: 10.3389/fpls.2023.1125194] [Citation(s) in RCA: 11] [Impact Index Per Article: 11.0] [Reference Citation Analysis] [Abstract] [Key Words] [Track Full Text] [Subscribe] [Scholar Register] [Received: 12/16/2022] [Accepted: 01/13/2023] [Indexed: 06/01/2023]
Abstract
Powdery mildew is a fungal disease devastating to wheat, causing significant quality and yield loss. Flavonoids are important secondary plant metabolites that confer resistance to biotic and abiotic stress. However, whether they play a role in powdery mildew resistance in wheat has yet to be explored. In the present study, we combined transcriptome and metabolome analyses to compare differentially expressed genes (DEGs) and differentially accumulated flavonoids identified in plants with and without powdery mildew inoculation. Transcriptome analysis identified 4,329 DEGs in susceptible wheat cv. Jimai229, and 8,493 in resistant cv. HHG46. The DEGs were functionally enriched using Gene Ontology and Kyoto Encyclopedia of Genes and Genomes, revealing the flavonoid synthesis pathway as the most significant in both cultivars. This was consistent with the upregulation of flavonoid synthesis pathway genes observed by quantitative PCR. Metabolome analysis indicated flavone and flavonol biosynthesis pathways as the most significantly enriched following powdery mildew inoculation. An accumulation of total flavonoids content was also found to be induced by powdery mildew infection. Exogenous flavonoids treatment of inoculated plants led to less severe infection, with fewer and smaller powdery mildew spots on the wheat leaves. This reduction is speculated to be regulated through malondialdehyde content and the activities of peroxidase and catalase. Our study provides a fundamental theory for further exploration of the potential of flavonoids as biological prevention and control agents against powdery mildew in wheat.
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Affiliation(s)
- Wenjing Xu
- Crop Research Institute, Shandong Academy of Agricultural Sciences, Jinan, Shandong, China
- National Engineering Laboratory of Wheat and Maize, Jinan, Shandong, China
- Key Laboratory of Wheat Biology and Genetic Improvement in the North Huang and Huai River Valley of Ministry of Agriculture, Jinan, Shandong, China
- Shandong Wheat Technology Innovation Center, Jinan, Shandong, China
| | - Xiaoyi Xu
- School of Life Sciences, Yantai University, Yantai, Shandong, China
| | - Ran Han
- Crop Research Institute, Shandong Academy of Agricultural Sciences, Jinan, Shandong, China
- National Engineering Laboratory of Wheat and Maize, Jinan, Shandong, China
- Key Laboratory of Wheat Biology and Genetic Improvement in the North Huang and Huai River Valley of Ministry of Agriculture, Jinan, Shandong, China
- Shandong Wheat Technology Innovation Center, Jinan, Shandong, China
| | - Xiaolu Wang
- Crop Research Institute, Shandong Academy of Agricultural Sciences, Jinan, Shandong, China
- National Engineering Laboratory of Wheat and Maize, Jinan, Shandong, China
- Key Laboratory of Wheat Biology and Genetic Improvement in the North Huang and Huai River Valley of Ministry of Agriculture, Jinan, Shandong, China
- Shandong Wheat Technology Innovation Center, Jinan, Shandong, China
| | - Kai Wang
- Crop Research Institute, Shandong Academy of Agricultural Sciences, Jinan, Shandong, China
- National Engineering Laboratory of Wheat and Maize, Jinan, Shandong, China
- Key Laboratory of Wheat Biology and Genetic Improvement in the North Huang and Huai River Valley of Ministry of Agriculture, Jinan, Shandong, China
- Shandong Wheat Technology Innovation Center, Jinan, Shandong, China
| | - Guang Qi
- Crop Research Institute, Shandong Academy of Agricultural Sciences, Jinan, Shandong, China
- National Engineering Laboratory of Wheat and Maize, Jinan, Shandong, China
- Key Laboratory of Wheat Biology and Genetic Improvement in the North Huang and Huai River Valley of Ministry of Agriculture, Jinan, Shandong, China
- Shandong Wheat Technology Innovation Center, Jinan, Shandong, China
| | - Pengtao Ma
- School of Life Sciences, Yantai University, Yantai, Shandong, China
| | - Takao Komatsuda
- Crop Research Institute, Shandong Academy of Agricultural Sciences, Jinan, Shandong, China
- National Engineering Laboratory of Wheat and Maize, Jinan, Shandong, China
- Key Laboratory of Wheat Biology and Genetic Improvement in the North Huang and Huai River Valley of Ministry of Agriculture, Jinan, Shandong, China
- Shandong Wheat Technology Innovation Center, Jinan, Shandong, China
| | - Cheng Liu
- Crop Research Institute, Shandong Academy of Agricultural Sciences, Jinan, Shandong, China
- National Engineering Laboratory of Wheat and Maize, Jinan, Shandong, China
- Key Laboratory of Wheat Biology and Genetic Improvement in the North Huang and Huai River Valley of Ministry of Agriculture, Jinan, Shandong, China
- Shandong Wheat Technology Innovation Center, Jinan, Shandong, China
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Al-Jumaili MHA, Siddique F, Abul Qais F, Hashem HE, Chtita S, Rani A, Uzair M, Almzaien KA. Analysis and prediction pathways of natural products and their cytotoxicity against HeLa cell line protein using docking, molecular dynamics and ADMET. J Biomol Struct Dyn 2023; 41:765-777. [PMID: 34861809 DOI: 10.1080/07391102.2021.2011785] [Citation(s) in RCA: 12] [Impact Index Per Article: 12.0] [Reference Citation Analysis] [Abstract] [Key Words] [Track Full Text] [Journal Information] [Subscribe] [Scholar Register] [Indexed: 01/11/2023]
Abstract
Natural product such as flavonoids and their derivatives have a discernible capability to inhibit tumor formation and the growth of cancer cell, which have a vital link between diet and chronic disease prevention. Several plants and spices that contain flavonoid derivatives have been used in traditional medicine as disease preventative and therapeutic agents. Therefore, flavonoids could be used as chemotherapeutic drugs, indicating their potential clinical utility in cancer treatment. The purpose of this research was to discover and produce innovative pharmaceuticals from natural sources by introducing structural changes into flavonoids' backbones and changing their structures to improve biological activity and anticancer effects. In the current study, it was expected that the percent unbound values for the 15 compounds in human plasma would be low, ranging between 0.188 and 0.391. However, all compounds have a safe range and are not toxic to the brain. Compounds 2, 10, and 13 were shown to be permeable to the CNS (log PS > -3), but all other compounds had difficulty penetrating the CNS. Furthermore, all compounds had a low total clearance, ranging from 0.038 to 1.216 ml/min/kg, indicating that these compounds have a long half-life. None of the compounds caused skin sensitization (SS), and only compounds 1, 11, and 12 are expected to be AMES-positive, suggesting that the other compounds are not mutagenic. The result of the study showed based on the Drug-likeness and ADMET studies, only 3 compounds, including 3, 4, and 15, have a good pharmacokinetics propriety, the lowest toxicity, and good binding affinity towards Caspase 3 V266APDB (ID: 5I9B) as potential inhibitor candidates for the HeLa cell line, they have a low total clearance property and no AMES mutagenicity or hERG inhibition properties. These compounds (3,4,15) were examined to act as new cytotoxic drug candidates and would have an interest as starting point for designing compounds against the HeLa cell line.Communicated by Ramaswamy H. Sarma.
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Affiliation(s)
| | - Farhan Siddique
- Department of Chemistry and Biochemistry, Texas Tech University, Lubbock, TX, USA.,Royal Institute of Medical Sciences (RIMS), Multan, Pakistan.,Department of Pharmaceutical Chemistry, Faculty of Pharmacy, Bahauddin Zakariya University, Pakistan Multan
| | - Faizan Abul Qais
- Department of Agricultural Microbiology, Faculty of Agricultural Sciences, Aligarh Muslim University, Aligarh, UP, India
| | - Heba E Hashem
- Department of Chemistry, Faculty of Women, Ain Shams University, Cairo, Egypt
| | - Samir Chtita
- Department of Chemistry, Faculty of sciences Ben M'Sik, Hassan II University of Casablanca, Casablanca, Morocco
| | - Abida Rani
- Department of Pharmaceutical Chemistry, Faculty of Pharmacy, Bahauddin Zakariya University, Pakistan Multan
| | - Muhammad Uzair
- Department of Pharmaceutical Chemistry, Faculty of Pharmacy, Bahauddin Zakariya University, Pakistan Multan
| | - Kahtan A Almzaien
- Department of Medical Laboratory Techniques, Dijlah University College, Baghdad, Iraq
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Zumajo-Cardona C, Aguirre M, Castillo-Bravo R, Mizzotti C, Di Marzo M, Banfi C, Mendes MA, Spillane C, Colombo L, Ezquer I. Maternal control of triploid seed development by the TRANSPARENT TESTA 8 (TT8) transcription factor in Arabidopsis thaliana. Sci Rep 2023; 13:1316. [PMID: 36693864 PMCID: PMC9873634 DOI: 10.1038/s41598-023-28252-5] [Citation(s) in RCA: 6] [Impact Index Per Article: 6.0] [Reference Citation Analysis] [Abstract] [Key Words] [Track Full Text] [Figures] [Journal Information] [Subscribe] [Scholar Register] [Received: 07/29/2022] [Accepted: 01/16/2023] [Indexed: 01/25/2023] Open
Abstract
The balance between parental genome dosage is critical to offspring development in both animals and plants. In some angiosperm species, despite the imbalance between maternally and paternally inherited chromosome sets, crosses between parental lines of different ploidy may result in viable offspring. However, many plant species, like Arabidopsis thaliana, present a post-zygotic reproductive barrier, known as triploid block which results in the inability of crosses between individuals of different ploidy to generate viable seeds but also, in defective development of the seed. Several paternal regulators have been proposed as active players in establishing the triploid block. Maternal regulators known to be involved in this process are some flavonoid biosynthetic (FB) genes, expressed in the innermost layer of the seed coat. Here we explore the role of selected flavonoid pathway genes in triploid block, including TRANSPARENT TESTA 4 (TT4), TRANSPARENT TESTA 7 (TT7), SEEDSTICK (STK), TRANSPARENT TESTA 16 (TT16), TT8 and TRANSPARENT TESTA 13 (TT13). This approach allowed us to detect that TT8, a bHLH transcription factor, member of this FB pathway is required for the paternal genome dosage, as loss of function tt8, leads to complete rescue of the triploid block to seed development.
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Affiliation(s)
- Cecilia Zumajo-Cardona
- Dipartimento Di BioScienze, Università Degli Studi Di Milano, Via Celoria 26, 20133, Milano, Italy
| | - Manuel Aguirre
- Dipartimento Di BioScienze, Università Degli Studi Di Milano, Via Celoria 26, 20133, Milano, Italy.,Translational Plant & Microbial Biology, Institute of Environmental Biology, Utrecht University, Padualaan 8, 3584CH, Utrecht, The Netherlands
| | - Rosa Castillo-Bravo
- Genetics and Biotechnology Laboratory, Plant and AgriBioscience Research Centre (PABC), Ryan Institute, National University of Ireland Galway, University Road, Galway, H91 REW4, Ireland
| | - Chiara Mizzotti
- Dipartimento Di BioScienze, Università Degli Studi Di Milano, Via Celoria 26, 20133, Milano, Italy
| | - Maurizio Di Marzo
- Dipartimento Di BioScienze, Università Degli Studi Di Milano, Via Celoria 26, 20133, Milano, Italy
| | - Camilla Banfi
- Dipartimento Di BioScienze, Università Degli Studi Di Milano, Via Celoria 26, 20133, Milano, Italy
| | - Marta A Mendes
- Dipartimento Di BioScienze, Università Degli Studi Di Milano, Via Celoria 26, 20133, Milano, Italy
| | - Charles Spillane
- Genetics and Biotechnology Laboratory, Plant and AgriBioscience Research Centre (PABC), Ryan Institute, National University of Ireland Galway, University Road, Galway, H91 REW4, Ireland
| | - Lucia Colombo
- Dipartimento Di BioScienze, Università Degli Studi Di Milano, Via Celoria 26, 20133, Milano, Italy
| | - Ignacio Ezquer
- Dipartimento Di BioScienze, Università Degli Studi Di Milano, Via Celoria 26, 20133, Milano, Italy.
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Kurepa J, Shull TE, Smalle JA. Friends in Arms: Flavonoids and the Auxin/Cytokinin Balance in Terrestrialization. PLANTS (BASEL, SWITZERLAND) 2023; 12:517. [PMID: 36771601 PMCID: PMC9921348 DOI: 10.3390/plants12030517] [Citation(s) in RCA: 5] [Impact Index Per Article: 5.0] [Reference Citation Analysis] [Abstract] [Key Words] [Grants] [Track Full Text] [Figures] [Subscribe] [Scholar Register] [Received: 01/01/2023] [Revised: 01/17/2023] [Accepted: 01/18/2023] [Indexed: 06/18/2023]
Abstract
Land plants survive the challenges of new environments by evolving mechanisms that protect them from excess irradiation, nutrient deficiency, and temperature and water availability fluctuations. One such evolved mechanism is the regulation of the shoot/root growth ratio in response to water and nutrient availability by balancing the actions of the hormones auxin and cytokinin. Plant terrestrialization co-occurred with a dramatic expansion in secondary metabolism, particularly with the evolution and establishment of the flavonoid biosynthetic pathway. Flavonoid biosynthesis is responsive to a wide range of stresses, and the numerous synthesized flavonoid species offer two main evolutionary advantages to land plants. First, flavonoids are antioxidants and thus defend plants against those adverse conditions that lead to the overproduction of reactive oxygen species. Second, flavonoids aid in protecting plants against water and nutrient deficiency by modulating root development and establishing symbiotic relations with beneficial soil fungi and bacteria. Here, we review different aspects of the relationships between the auxin/cytokinin module and flavonoids. The current body of knowledge suggests that whereas both auxin and cytokinin regulate flavonoid biosynthesis, flavonoids act to fine-tune only auxin, which in turn regulates cytokinin action. This conclusion agrees with the established master regulatory function of auxin in controlling the shoot/root growth ratio.
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Affiliation(s)
| | | | - Jan A. Smalle
- Plant Physiology, Biochemistry, Molecular Biology Program, Department of Plant and Soil Sciences, University of Kentucky, Lexington, KY 40546, USA
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Cobo-Simón I, Gómez-Garrido J, Esteve-Codina A, Dabad M, Alioto T, Maloof JN, Méndez-Cea B, Seco JI, Linares JC, Gallego FJ. De novo transcriptome sequencing and gene co-expression reveal a genomic basis for drought sensitivity and evidence of a rapid local adaptation on Atlas cedar ( Cedrus atlantica). FRONTIERS IN PLANT SCIENCE 2023; 14:1116863. [PMID: 37152146 PMCID: PMC10155838 DOI: 10.3389/fpls.2023.1116863] [Citation(s) in RCA: 0] [Impact Index Per Article: 0] [Reference Citation Analysis] [Abstract] [Key Words] [Grants] [Track Full Text] [Figures] [Subscribe] [Scholar Register] [Received: 12/05/2022] [Accepted: 03/30/2023] [Indexed: 05/09/2023]
Abstract
Introduction Understanding the adaptive capacity to current climate change of drought-sensitive tree species is mandatory, given their limited prospect of migration and adaptation as long-lived, sessile organisms. Knowledge about the molecular and eco-physiological mechanisms that control drought resilience is thus key, since water shortage appears as one of the main abiotic factors threatening forests ecosystems. However, our current background is scarce, especially in conifers, due to their huge and complex genomes. Methods Here we investigated the eco-physiological and transcriptomic basis of drought response of the climate change-threatened conifer Cedrus atlantica. We studied C. atlantica seedlings from two locations with contrasting drought conditions to investigate a local adaptation. Seedlings were subjected to experimental drought conditions, and were monitored at immediate (24 hours) and extended (20 days) times. In addition, post-drought recovery was investigated, depicting two contrasting responses in both locations (drought resilient and non-resilient). Single nucleotide polymorphisms (SNPs) were also studied to characterize the genomic basis of drought resilience and investigate a rapid local adaptation of C. atlantica. Results De novo transcriptome assembly was performed for the first time in this species, providing differences in gene expression between the immediate and extended treatments, as well as among the post-drought recovery phenotypes. Weighted gene co-expression network analysis showed a regulation of stomatal closing and photosynthetic activity during the immediate drought, consistent with an isohydric dynamic. During the extended drought, growth and flavonoid biosynthesis inhibition mechanisms prevailed, probably to increase root-to-shoot ratio and to limit the energy-intensive biosynthesis of secondary metabolites. Drought sensitive individuals failed in metabolism and photosynthesis regulation under drought stress, and in limiting secondary metabolite production. Moreover, genomic differences (SNPs) were found between drought resilient and sensitive seedlings, and between the two studied locations, which were mostly related to transposable elements. Discussion This work provides novel insights into the transcriptomic basis of drought response of C. atlantica, a set of candidate genes mechanistically involved in its drought sensitivity and evidence of a rapid local adaptation. Our results may help guide conservation programs for this threatened conifer, contribute to advance drought-resilience research and shed light on trees' adaptive potential to current climate change.
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Affiliation(s)
- Irene Cobo-Simón
- Department of Physical, Chemical and Natural Systems. University Pablo de Olavide, Seville, Spain
- Department of Genetics, Physiology and Microbiology, Genetics Unit. Faculty of Biological Sciences, Complutense University of Madrid, Madrid, Spain
- *Correspondence: Irene Cobo-Simón,
| | - Jèssica Gómez-Garrido
- Nacional Center for Genomic Analysis-Center for Genomic Regulation (CNAG-CRG), Centre for Genomic Regulation, Barcelona Institute of Science and Technology, Barcelona, Spain
| | - Anna Esteve-Codina
- Nacional Center for Genomic Analysis-Center for Genomic Regulation (CNAG-CRG), Centre for Genomic Regulation, Barcelona Institute of Science and Technology, Barcelona, Spain
| | - Marc Dabad
- Nacional Center for Genomic Analysis-Center for Genomic Regulation (CNAG-CRG), Centre for Genomic Regulation, Barcelona Institute of Science and Technology, Barcelona, Spain
| | - Tyler Alioto
- Nacional Center for Genomic Analysis-Center for Genomic Regulation (CNAG-CRG), Centre for Genomic Regulation, Barcelona Institute of Science and Technology, Barcelona, Spain
| | - Julin N. Maloof
- Department of Plant Biology, University of California at Davis, Davis, CA, United States
| | - Belén Méndez-Cea
- Department of Genetics, Physiology and Microbiology, Genetics Unit. Faculty of Biological Sciences, Complutense University of Madrid, Madrid, Spain
| | - José Ignacio Seco
- Department of Physical, Chemical and Natural Systems. University Pablo de Olavide, Seville, Spain
| | - Juan Carlos Linares
- Department of Physical, Chemical and Natural Systems. University Pablo de Olavide, Seville, Spain
| | - Francisco Javier Gallego
- Department of Genetics, Physiology and Microbiology, Genetics Unit. Faculty of Biological Sciences, Complutense University of Madrid, Madrid, Spain
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Sweetman C, Waterman CD, Wong DC, Day DA, Jenkins CL, Soole KL. Altering the balance between AOX1A and NDB2 expression affects a common set of transcripts in Arabidopsis. FRONTIERS IN PLANT SCIENCE 2022; 13:876843. [PMID: 36466234 PMCID: PMC9716356 DOI: 10.3389/fpls.2022.876843] [Citation(s) in RCA: 0] [Impact Index Per Article: 0] [Reference Citation Analysis] [Abstract] [Key Words] [Grants] [Track Full Text] [Figures] [Subscribe] [Scholar Register] [Received: 02/15/2022] [Accepted: 10/24/2022] [Indexed: 06/17/2023]
Abstract
Stress-responsive components of the mitochondrial alternative electron transport pathway have the capacity to improve tolerance of plants to abiotic stress, particularly the alternative oxidase AOX1A but also external NAD(P)H dehydrogenases such as NDB2, in Arabidopsis. NDB2 and AOX1A can cooperate to entirely circumvent the classical electron transport chain in Arabidopsis mitochondria. Overexpression of AOX1A or NDB2 alone can have slightly negative impacts on plant growth under optimal conditions, while simultaneous overexpression of NDB2 and AOX1A can reverse these phenotypic effects. We have taken a global transcriptomic approach to better understand the molecular shifts that occur due to overexpression of AOX1A alone and with concomitant overexpression of NDB2. Of the transcripts that were significantly up- or down- regulated in the AOX1A overexpression line compared to wild type (410 and 408, respectively), the majority (372 and 337, respectively) reverted to wild type levels in the dual overexpression line. Several mechanisms for the AOX1A overexpression phenotype are proposed based on the functional classification of these 709 genes, which can be used to guide future experiments. Only 28 genes were uniquely up- or down-regulated when NDB2 was overexpressed in the AOX1A overexpression line. On the other hand, many unique genes were deregulated in the NDB2 knockout line. Furthermore, several changes in transcript abundance seen in the NDB2 knockout line were consistent with changes in the AOX1A overexpression line. The results suggest that an imbalance in AOX1A:NDB2 protein levels caused by under- or over-expression of either component, triggers a common set of transcriptional responses that may be important in mitochondrial redox regulation. The most significant changes were transcripts associated with photosynthesis, secondary metabolism and oxidative stress responses.
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Affiliation(s)
- Crystal Sweetman
- College of Science & Engineering, Flinders University, Bedford Park, SA, Australia
| | | | - Darren C.J. Wong
- College of Science, Australian National University, Canberra, ACT, Australia
| | - David A. Day
- College of Science & Engineering, Flinders University, Bedford Park, SA, Australia
| | - Colin L.D. Jenkins
- College of Science & Engineering, Flinders University, Bedford Park, SA, Australia
| | - Kathleen L. Soole
- College of Science & Engineering, Flinders University, Bedford Park, SA, Australia
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Wu T, Liu K, Chen M, Jiang B, Gong Q, Zhong Y. Transcriptome and metabolome analyses of Shatian pomelo ( Citrus grandis var. Shatinyu Hort) leaves provide insights into the overexpression of the gibberellin-induced gene CcGASA4. FRONTIERS IN PLANT SCIENCE 2022; 13:1022961. [PMID: 36407630 PMCID: PMC9671072 DOI: 10.3389/fpls.2022.1022961] [Citation(s) in RCA: 0] [Impact Index Per Article: 0] [Reference Citation Analysis] [Abstract] [Key Words] [Track Full Text] [Figures] [Subscribe] [Scholar Register] [Received: 08/19/2022] [Accepted: 09/30/2022] [Indexed: 06/16/2023]
Abstract
The gibberellic acid (GA)-stimulated Arabidopsis (GASA) gene family is highly specific to plants and plays crucial roles in plant growth and development. CcGASA4 is a member of the GASA gene family in citrus plants; however, the current understanding of its function in citrus is limited. We used CcGASA4-overexpression transgenic citrus (OEGA) and control (CON) plants to study the role of CcGASA4 in Shatian pomelo. The RNA sequencing (RNA-seq) analysis showed that 3,522 genes, including 1,578 upregulated and 1,944 downregulated genes, were significantly differentially expressed in the CON versus OEGA groups. The Gene Ontology enrichment analysis showed that 178 of the differentially-expressed genes (DEGs) were associated with flowers. A Kyoto Encyclopedia of Genes and Genomes (KEGG) enrichment analysis showed that the DEGs were enriched in 134 pathways, including "plant-pathogen interaction", "MAPK signaling pathway-plant", "phenylpropane biosynthesis", "plant hormone signal transduction", "phenylalanine, tyrosine and tryptophan biosynthesis", and "flavonoid and flavonol biosynthesis". The most significantly-enriched pathway was "plant-pathogen interaction", in which 203 DEGs were enriched (126 DEGs were upregulated and 78 were downregulated). The metabolome analysis showed that 644 metabolites were detected in the OEGA and CON samples, including 294 differentially-accumulated metabolites (DAMs; 83 upregulated versus 211 downregulated in OEGA compared to CON). The metabolic pathway analysis showed that these DAMs were mainly involved in the metabolic pathways of secondary metabolites, such as phenylpropanoids, phenylalanine, flavone, and flavonol biosynthesis. Thirteen flavonoids and isoflavones were identified as DAMs in OEGA and CON. We also discovered 25 OEGA-specific accumulated metabolites and found 10 that were associated with disease resistance. CcGASA4 may therefore play a functional role in activating the expression of MAPK signaling transduction pathway and disease resistance genes, inhibiting the expression of auxin- and ethylene-related genes, and activating or inhibiting the expression of brassinosteroid biosynthesis- and abscisic acid-related genes. CcGASA4 may also play a role in regulating the composition and abundance of flavonoids, isoflavones, amino acids, purines, and phenolic compounds. This study provides new insights into the molecular mechanisms of action of CcGASA4 in citrus plants.
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Affiliation(s)
- Tianli Wu
- Life Science and Technology School, Lingnan Normal University, Zhanjiang, China
- Institute of Fruit Tree Research, Guangdong Academy of Agricultural Sciences, Guangzhou, China
| | - Kaidong Liu
- Life Science and Technology School, Lingnan Normal University, Zhanjiang, China
| | - Min Chen
- Institute of Fruit Tree Research, Guangdong Academy of Agricultural Sciences, Guangzhou, China
| | - Bo Jiang
- Institute of Fruit Tree Research, Guangdong Academy of Agricultural Sciences, Guangzhou, China
| | - Qijing Gong
- Life Science and Technology School, Lingnan Normal University, Zhanjiang, China
| | - Yun Zhong
- Institute of Fruit Tree Research, Guangdong Academy of Agricultural Sciences, Guangzhou, China
- Key Laboratory of South Subtropical Fruit Biology and Genetic Resource Utilization (MOA), Guangzhou, China
- Key Laboratory of Tropical and Subtropical of Fruit Tree Research, Science and Technology Department of Guangdong Province, Guangzhou, China
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Velička A, Tarasevičienė Ž, Hallmann E, Kieltyka-Dadasiewicz A. Impact of Foliar Application of Amino Acids on Essential Oil Content, Odor Profile, and Flavonoid Content of Different Mint Varieties in Field Conditions. PLANTS (BASEL, SWITZERLAND) 2022; 11:plants11212938. [PMID: 36365392 PMCID: PMC9731322 DOI: 10.3390/plants11212938] [Citation(s) in RCA: 2] [Impact Index Per Article: 1.0] [Reference Citation Analysis] [Abstract] [Key Words] [Track Full Text] [Subscribe] [Scholar Register] [Received: 09/02/2022] [Revised: 10/17/2022] [Accepted: 10/25/2022] [Indexed: 05/31/2023]
Abstract
Mint is an industrial plant that is a good source of essential oil and many phenolic compounds that have several positive benefits to human health and can be used to prevent the development of many diseases. The aim of this research was to investigate the possibility of increasing essential oil and flavonoid content, changing the chemical composition of these compounds in different mint cultivars under foliar application with precursors (phenylalanine, tryptophan, and tyrosine) at two concentrations, 100 and 200 mg L-1, to enable the possibilities for wider use of these plants when they are grown in field conditions. Spraying with phenylalanine at 100 mg L-1 concentration increased essential oil content in Mentha piperita 'Granada' plants by 0.53 percentage units. Foliar application with tyrosine solutions at 100 mg L-1 concentration most effectively influenced the essential oil odor profile Mentha spicata 'Crispa'. The highest number of total flavonoids was in Mentha piperita 'Swiss' sprayed with tyrosine at 100 mg L-1 concentration. The flavonoid content depended on the mint cultivar, amino acids, and their concentration. The results showed that the effect of amino acid solutions on different secondary metabolites' quantitative and qualitative composition differed depending on the mint cultivar; therefore, amino acids and their concentrations must be selected based on the cultivar they are targeting.
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Affiliation(s)
- Aloyzas Velička
- Department of Plants Biology and Food Science, Faculty of Agronomy, Agriculture Academy Vytautas Magnus University, Donelaicio STR. 52, LT-44248 Kaunas, Lithuania
| | - Živilė Tarasevičienė
- Department of Plants Biology and Food Science, Faculty of Agronomy, Agriculture Academy Vytautas Magnus University, Donelaicio STR. 52, LT-44248 Kaunas, Lithuania
| | - Ewelina Hallmann
- Department of Functional and Organic Food, Institute of Human Nutrition Sciences, Warsaw University of Life Sciences, Nowoursynowska 159 c, 02-776 Warsaw, Poland
- Bioeconomy Research Institute, Agriculture Academy, Vytautas Magnus University, K. Donelaicio Str. 58, LT-44248 Kaunas, Lithuania
| | - Anna Kieltyka-Dadasiewicz
- Department of Plant Production Technology and Commodity, University of Life Sciences in Lublin, Akademicka 15, 20-950 Lublin, Poland
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Gani U, Nautiyal AK, Kundan M, Rout B, Pandey A, Misra P. Two homeologous MATE transporter genes, NtMATE21 and NtMATE22, are involved in the modulation of plant growth and flavonol transport in Nicotiana tabacum. JOURNAL OF EXPERIMENTAL BOTANY 2022; 73:6186-6206. [PMID: 35662335 DOI: 10.1093/jxb/erac249] [Citation(s) in RCA: 0] [Impact Index Per Article: 0] [Reference Citation Analysis] [Abstract] [Key Words] [MESH Headings] [Grants] [Track Full Text] [Subscribe] [Scholar Register] [Received: 03/02/2022] [Accepted: 06/02/2022] [Indexed: 06/15/2023]
Abstract
The multidrug and toxic compound extrusion (MATE) protein family has been implicated in the transport of a diverse range of molecules, including specialized metabolites. In tobacco (Nicotiana tabacum), only a limited number of MATE transporters have been functionally characterized, and no MATE transporter has been studied in the context of flavonoid transport in this plant species so far. In the present study, we characterize two homeologous tobacco MATE genes, NtMATE21 and NtMATE22, and demonstrate their role in flavonol transport and in plant growth and development. The expression of these two genes was reported to be up-regulated in trichomes as compared with the trichome-free leaf. The transcript levels of NtMATE21 and NtMATE22 were found to be higher in flavonol overproducing tobacco transgenic lines as compared with wild type tobacco. The two transporters were demonstrated to be localized to the plasma membrane. Genetic manipulation of NtMATE21 and NtMATE22 led to altered growth phenotypes and modulated flavonol contents in N. tabacum. The β-glucuronidase and green fluorescent protein fusion transgenic lines of promoter regions suggested that NtMATE21 and NtMATE22 are exclusively expressed in the trichome heads in the leaf tissue and petals. Moreover, in a transient transactivation assay, NtMYB12, a flavonol-specific MYB transcription factor, was found to transactivate the expression of NtMATE21 and NtMATE22 genes. Together, our results strongly suggest the involvement of NtMATE21 and NtMATE22 in flavonol transport as well as in the regulation of plant growth and development.
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Affiliation(s)
- Umar Gani
- Plant Sciences and Agrotechnology Division, CSIR-Indian Institute of Integrative Medicine, Jammu, India
- Academy of Scientific and Innovative Research (AcSIR), Ghaziabad, India
| | - Abhishek Kumar Nautiyal
- Plant Sciences and Agrotechnology Division, CSIR-Indian Institute of Integrative Medicine, Jammu, India
- Academy of Scientific and Innovative Research (AcSIR), Ghaziabad, India
| | - Maridul Kundan
- Plant Sciences and Agrotechnology Division, CSIR-Indian Institute of Integrative Medicine, Jammu, India
- Academy of Scientific and Innovative Research (AcSIR), Ghaziabad, India
| | - Biswaranjan Rout
- National Institute of Plant Genome Research, Aruna Asaf Ali Marg, New Delhi, India
| | - Ashutosh Pandey
- National Institute of Plant Genome Research, Aruna Asaf Ali Marg, New Delhi, India
| | - Prashant Misra
- Plant Sciences and Agrotechnology Division, CSIR-Indian Institute of Integrative Medicine, Jammu, India
- Academy of Scientific and Innovative Research (AcSIR), Ghaziabad, India
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Jan R, Khan M, Asaf S, Lubna, Asif S, Kim KM. Bioactivity and Therapeutic Potential of Kaempferol and Quercetin: New Insights for Plant and Human Health. PLANTS (BASEL, SWITZERLAND) 2022; 11:2623. [PMID: 36235488 PMCID: PMC9571405 DOI: 10.3390/plants11192623] [Citation(s) in RCA: 48] [Impact Index Per Article: 24.0] [Reference Citation Analysis] [Abstract] [Key Words] [Track Full Text] [Subscribe] [Scholar Register] [Received: 08/29/2022] [Revised: 09/30/2022] [Accepted: 10/03/2022] [Indexed: 07/25/2023]
Abstract
Plant secondary metabolites, especially flavonoids, are major metabolites widely found in plants that play several key roles in plant defence and signalling in response to stress conditions. The most studied among these flavonoids are kaempferol and quercetin due to their anti-oxidative potential and their key roles in the defence system, making them more critical for plant adaptation in stress environments. Kaempferol and quercetin in plants have great therapeutic potential for human health. Despite being well-studied, some of their functional aspects regarding plants and human health need further evaluation. This review summarizes the emerging potential of kaempferol and quercetin in terms of antimicrobial activity, bioavailability and bioactivity in the human body as well as in the regulation of plant defence in response to stresses and as a signalling molecule in terms of hormonal modulation under stress conditions. We also evaluated the safe use of both metabolites in the pharmaceutical industry.
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Affiliation(s)
- Rahmatullah Jan
- Department of Applied Biosciences, Graduate School, Kyungpook National University, Daegu 41566, Korea
- Coastal Agriculture Research Institute, Kyungpook National University, Daegu 41566, Korea
| | - Murtaza Khan
- Department of Horticulture and Life Science, Yeungnam University, Gyeongsan 38541, Korea
| | - Sajjad Asaf
- Natural and Medical Sciences Research Center, University of Nizwa, Nizwa 616, Oman
| | - Lubna
- Department of Botany, Abdul Wali Khan University Mardan, Mardan 23200, Pakistan
| | - Saleem Asif
- Department of Applied Biosciences, Graduate School, Kyungpook National University, Daegu 41566, Korea
| | - Kyung-Min Kim
- Department of Applied Biosciences, Graduate School, Kyungpook National University, Daegu 41566, Korea
- Coastal Agriculture Research Institute, Kyungpook National University, Daegu 41566, Korea
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Baba AI, Mir MY, Riyazuddin R, Cséplő Á, Rigó G, Fehér A. Plants in Microgravity: Molecular and Technological Perspectives. Int J Mol Sci 2022; 23:10548. [PMID: 36142459 PMCID: PMC9505700 DOI: 10.3390/ijms231810548] [Citation(s) in RCA: 1] [Impact Index Per Article: 0.5] [Reference Citation Analysis] [Abstract] [Key Words] [MESH Headings] [Track Full Text] [Download PDF] [Figures] [Journal Information] [Subscribe] [Scholar Register] [Received: 08/10/2022] [Revised: 08/31/2022] [Accepted: 09/08/2022] [Indexed: 01/19/2023] Open
Abstract
Plants are vital components of our ecosystem for a balanced life here on Earth, as a source of both food and oxygen for survival. Recent space exploration has extended the field of plant biology, allowing for future studies on life support farming on distant planets. This exploration will utilize life support technologies for long-term human space flights and settlements. Such longer space missions will depend on the supply of clean air, food, and proper waste management. The ubiquitous force of gravity is known to impact plant growth and development. Despite this, we still have limited knowledge about how plants can sense and adapt to microgravity in space. Thus, the ability of plants to survive in microgravity in space settings becomes an intriguing topic to be investigated in detail. The new knowledge could be applied to provide food for astronaut missions to space and could also teach us more about how plants can adapt to unique environments. Here, we briefly review and discuss the current knowledge about plant gravity-sensing mechanisms and the experimental possibilities to research microgravity-effects on plants either on the Earth or in orbit.
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Affiliation(s)
- Abu Imran Baba
- Umeå Plant Science Centre, Department of Forest Genetics and Plant Physiology, Swedish University of Agricultural Sciences, SE-901 83 Umeå, Sweden
| | - Mohd Yaqub Mir
- Doctoral School of Neuroscience, Semmelweis University, H-1083 Budapest, Hungary
- Theoretical Neuroscience and Complex Systems Group, Department of Computational Sciences, Wigner Research Centre for Physics, H-1121 Budapest, Hungary
| | - Riyazuddin Riyazuddin
- Department of Plant Biology, Faculty of Science and Informatics, University of Szeged, Közép fasor 52, H-6726 Szeged, Hungary
- Biological Research Centre (BRC), Institute of Plant Biology, Eötvös Loránd Research Network (ELKH), H-6726 Szeged, Hungary
| | - Ágnes Cséplő
- Biological Research Centre (BRC), Institute of Plant Biology, Eötvös Loránd Research Network (ELKH), H-6726 Szeged, Hungary
| | - Gábor Rigó
- Biological Research Centre (BRC), Institute of Plant Biology, Eötvös Loránd Research Network (ELKH), H-6726 Szeged, Hungary
| | - Attila Fehér
- Department of Plant Biology, Faculty of Science and Informatics, University of Szeged, Közép fasor 52, H-6726 Szeged, Hungary
- Biological Research Centre (BRC), Institute of Plant Biology, Eötvös Loránd Research Network (ELKH), H-6726 Szeged, Hungary
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47
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Ahammed GJ, Li X. Hormonal regulation of health-promoting compounds in tea (Camellia sinensis L.). PLANT PHYSIOLOGY AND BIOCHEMISTRY : PPB 2022; 185:390-400. [PMID: 35785551 DOI: 10.1016/j.plaphy.2022.06.021] [Citation(s) in RCA: 6] [Impact Index Per Article: 3.0] [Reference Citation Analysis] [Abstract] [Key Words] [MESH Headings] [Track Full Text] [Subscribe] [Scholar Register] [Received: 03/15/2022] [Revised: 06/15/2022] [Accepted: 06/19/2022] [Indexed: 06/15/2023]
Abstract
Tea is the most frequently consumed natural beverage across the world produced with the young leaves and shoots of the evergreen perennial plant Camellia sinensis (L.) O. Kuntze. The expanding global appeal of tea is partly attributed to its health-promoting benefits such as anti-inflammation, anti-cancer, anti-allergy, anti-hypertension, anti-obesity, and anti- SARS-CoV-2 activity. The many advantages of healthy tea intake are linked to its bioactive substances such as tea polyphenols, flavonoids (catechins), amino acids (theanine), alkaloids (caffeine), anthocyanins, proanthocyanidins, etc. that are produced through secondary metabolic pathways. Phytohormones regulate secondary metabolite biosynthesis in a variety of plants, including tea. There is a strong hormonal response in the biosynthesis of polyphenols, catechins, theanine and caffeine in tea under control and perturbed environmental conditions. In addition to the impact of preharvest plant hormone manipulation on green tea quality, changes in hormones of postharvest tea also regulate quality-related metabolites in tea. In this review, we discuss the health benefits of major tea constituents and the role of various plant hormones in improving the endogenous levels of these compounds for human health benefits. The fact that the ratio of tea polyphenols to amino acids and the concentrations of tea components are changed by environmental conditions, most notably by climate change-associated variables, the selection and usage of optimal hormone combinations may aid in sustaining tea quality, and thus can be beneficial to both consumers and producers.
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Affiliation(s)
- Golam Jalal Ahammed
- College of Horticulture and Plant Protection, Henan University of Science and Technology, Luoyang, 471023, PR China.
| | - Xin Li
- Key Laboratory of Tea Quality and Safety Control, Ministry of Agriculture and Rural Affairs, Tea Research Institute, Chinese Academy of Agricultural Sciences, Hangzhou, 310008, PR China.
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Jiang W, Xia Y, Su X, Pang Y. ARF2 positively regulates flavonols and proanthocyanidins biosynthesis in Arabidopsis thaliana. PLANTA 2022; 256:44. [PMID: 35857143 DOI: 10.1007/s00425-022-03936-w] [Citation(s) in RCA: 12] [Impact Index Per Article: 6.0] [Reference Citation Analysis] [Abstract] [Key Words] [MESH Headings] [Track Full Text] [Subscribe] [Scholar Register] [Received: 01/11/2022] [Accepted: 06/03/2022] [Indexed: 06/15/2023]
Abstract
Auxin response factor 2 acts as a positive regulator to fine-tune the spatial and temporal accumulation of flavonoid compounds, mainly flavonols and proanthocyanidins in Arabidopsis. Auxin response factor (ARF) proteins are reported to involve in auxin-mediated regulation of flavonoid biosynthesis. However, the detailed regulation mechanism of ARF remains still unknown. Here, we provide genetic and molecular evidence that one of the twenty-three ARF members-ARF2-positively regulates flavonoid biosynthesis at multi-level in tissue-specific manner in Arabidopsis thaliana. Loss-of-function mutation of ARF2 led to significant reduction in flavonoid content (e.g., flavonols and proanthocyanidins) in the seedlings and seeds of the Arabidopsis arf2 mutants. Over-expression of ARF2 increased flavonols and proanthocyanidins content in Arabidopsis. Additionally, the changes of flavonoid content correlate well with the transcript abundance of several regulatory genes (e.g., MYB11, MYB12, MYB111, TT2, and GL3), and key biosynthetic genes (e.g., CHS, F3'H, FLS, ANS, ANR, TT12, TT19, and TT15), in the arf2 mutant and ARF2 over-expression lines. Transient transactivation assays with site-directed mutagenesis confirmed that ARF2 directly regulates the expression of MYB12 and FLS genes in the flavonol pathway and ANR in the proanthocyanidin pathway, and indirectly regulates MYB11 and MYB111 genes in the flavonol pathway, and ANS, TT12, TT19 and TT15 genes in the proanthocyanidin pathway. Further genetic results indicated that ARF2 acts upstream of MYB12 to regulate flavonol accumulation, and of TT2 to regulate proanthocyanidins accumulation. In particular, yeast two-hybrid assays revealed that ARF2 physically interacts with TT2, a master regulator of proanthocyanidins biosynthesis. Combined together, these results indicated that ARF2 functions as a positive regulator for the fine-tuned spatial and temporal regulation of flavonoids (mainly flavonols and proanthocyanidins) accumulation in Arabidopsis.
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Affiliation(s)
- Wenbo Jiang
- Institute of Animal Science, Chinese Academy of Agricultural Sciences, Beijing, 100193, China
| | - Yaying Xia
- Institute of Animal Science, Chinese Academy of Agricultural Sciences, Beijing, 100193, China
- Key Laboratory of Plant Resources and Beijing Botanical Garden, Institute of Botany, Chinese Academy of Sciences, Beijing, 100093, China
- University of Chinese Academy of Sciences, Beijing, 100049, China
| | - Xiaojia Su
- Institute of Animal Science, Chinese Academy of Agricultural Sciences, Beijing, 100193, China
- Key Laboratory of Plant Resources and Beijing Botanical Garden, Institute of Botany, Chinese Academy of Sciences, Beijing, 100093, China
| | - Yongzhen Pang
- Institute of Animal Science, Chinese Academy of Agricultural Sciences, Beijing, 100193, China.
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Comparative Transcriptome and Pigment Analyses Reveal Changes in Gene Expression Associated with Flavonol Metabolism in Yellow Camellia. FORESTS 2022. [DOI: 10.3390/f13071094] [Citation(s) in RCA: 1] [Impact Index Per Article: 0.5] [Reference Citation Analysis] [Abstract] [Track Full Text] [Subscribe] [Scholar Register] [Indexed: 02/06/2023]
Abstract
The accumulation of various pigments leads to the formation of different flower colors in plants. However, the regulation mechanism of yellow flower formation and flower color differences between Camellia nitidssima C.W.Chi (CN) and its hybrids C. ‘Zhenghuangqi’ (ZHQ), C. ‘Huangxuanlv’ (HXL), and C. ‘Xinshiji’ (XSJ), remains largely unknown. Here, we showed that the content of two flavonols, quercetin-7-O-glucoside (Qu7G) and quercetin-3-O-glucoside (Qu3G), was positively correlated with the yellow degree of petals in CN and its three hybrids. Additionally, we performed a comparative transcriptomic analysis of petals of the four yellow camellia plants, which revealed 322 common upregulated and 866 common downregulated DEGs (differentially expressed genes) in the CN vs. ZHQ, CN vs. HXL, and CN vs. XSJ comparison groups. Their regulatory pathway analysis showed that flavonol biosynthesis genes (FLSs and GTs) and transcriptional regulatory genes MYBs were all expressed higher in CN than its three hybrids, which corresponded to differences in the flavonol content among the four yellow camellias. Further, two ethylene synthesis genes (ACSs, ACO) and three ethylene signaling genes (EIN2s, EIN3, ERFs) were all upregulated in the yellow petals of CN. In conclusion, the expression of flavonol-related genes and flavonols (Qu7G and Qu3G) accumulation could play a key role in the formation of yellow flowers in camellia, and the ethylene pathway might be involved in the regulation of yellow flower formation of camellias. This work describes the possible regulatory pathway of yellow camellia, thereby laying a foundation for future verification of genes linked to flower coloring and the breeding of yellow camellia.
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Chen H, Zhang Q, Lv W, Yu X, Zhang Z. Ethylene positively regulates Cd tolerance via reactive oxygen species scavenging and apoplastic transport barrier formation in rice. ENVIRONMENTAL POLLUTION (BARKING, ESSEX : 1987) 2022; 302:119063. [PMID: 35248615 DOI: 10.1016/j.envpol.2022.119063] [Citation(s) in RCA: 10] [Impact Index Per Article: 5.0] [Reference Citation Analysis] [Abstract] [Key Words] [MESH Headings] [Track Full Text] [Subscribe] [Scholar Register] [Received: 12/16/2021] [Revised: 02/17/2022] [Accepted: 02/24/2022] [Indexed: 06/14/2023]
Abstract
Ethylene regulates plant root growth and resistance to environment stress. However, the role and mechanism of ethylene signaling in response to Cd stress in rice remains unclear. Here, we revealed that ethylene signaling plays a positive role in the resistance of rice to Cd toxicity. Blocking the ethylene signal facilitated root elongation under normal conditions, but resulted in severe oxidative damage and inhibition of root growth under Cd stress. Conversely, ethylene signal enhancement by EIN2 overexpression caused root bending, similar to the response of roots to Cd stress, and displayed higher Cd tolerance than the wildtype (WT) plants. Comparative transcriptome analysis indicated EIN2-mediated upregulation of genes involved in flavonoid biosynthesis and peroxidase activity under Cd stress. The synthesis of phenolic acids and flavonoids were positively regulated by ethylene. Thus, the ein2 (ethylene insensitive 2) mutants displayed lower ROS scavenging capacity than the WT. Moreover, a significant increase in Cd accumulation and relatively increased apoplastic flow were observed in the root apex of the ein2 mutant compared with the WT plants. Overall, EIN2-mediated Cd resistance in rice is mediated by the upregulation of flavonoid biosynthesis and peroxidase activity to induce ROS scavenging, and apoplastic transport barrier formation reduces Cd uptake.
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Affiliation(s)
- Haifei Chen
- College of Resources and Environmental Sciences, Hunan Agricultural University, 410128, Changsha, China
| | - Quan Zhang
- Key Laboratory of Agro-ecological Processes in Subtropical Region, Institute of Subtropical Agriculture, Chinese Academy of Sciences, 410128, Changsha, China
| | - Wei Lv
- College of Resources and Environmental Sciences, Hunan Agricultural University, 410128, Changsha, China
| | - Xiaoyi Yu
- College of Resources and Environmental Sciences, Hunan Agricultural University, 410128, Changsha, China
| | - Zhenhua Zhang
- College of Resources and Environmental Sciences, Hunan Agricultural University, 410128, Changsha, China.
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