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Zheng Y, Zhao S, Zhang M, Yang L, Wu X, Tan R, Jiang H. Progress based on a multi-omics research strategy in the biosynthesis and modernization of active ingredients of Herpetospermum pedunculosum seeds. Fitoterapia 2024; 177:106113. [PMID: 38971329 DOI: 10.1016/j.fitote.2024.106113] [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: 05/07/2024] [Revised: 07/03/2024] [Accepted: 07/03/2024] [Indexed: 07/08/2024]
Abstract
Herpetospermum pedunculosum seeds also known as Herpetospermum caudigerum Wall. is the mature seed of the Herpetospermum pedunculosum(Ser.) C. B. Clarke,Cucurbitaceae. Modern pharmacological studies have shown that H. pedunculosum has hepatoprotective, anti-inflammatory, anti-gout and antibacterial pharmacological activities. The biologically active chemical components include lignin compounds such as Herpetin, Herpetetrone, Herpetoriol and so on. The natural product displays considerable skeletal diversity and structural complexity, offering significant opportunities for novel drug discovery. Based on the multi-omics research strategy and the 'gene-protein-metabolite' research framework, the biosynthetic pathway of terpenoids and lignans in H. pedunculosum has has been elucidated at multiple levels. These approaches provide comprehensive genetic information for cloning and identification of pertinent enzyme genes. Furthermore, the application of multi-omics integrative approaches provides a scientific means to elucidate entire secondary metabolic pathways. We investigated the biosynthetic pathways of lignin and terpene components in H. pedunculosum and conducted bioinformatics analysis of the crucial enzyme genes involved in the biosynthetic process using genomic and transcriptomic data. We identified candidate genes for six key enzymes in the biosynthetic pathway. This review reports on the current literature on pharmacological investigations of H. pedunculosum, proposing its potential as an antidiabetic agent. Moreover, we conclude, for the first time, the identification of key enzyme genes potentially involved in the biosynthesis of active compounds in H. pedunculosum. This review provides a scientific foundation for the discovery of novel therapeutic agents from natural sources.
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Affiliation(s)
- Yating Zheng
- School of Life Science and Engineering, Southwest Jiaotong University, Chengdu 613100, PR China
| | - Siyu Zhao
- School of Life Science and Engineering, Southwest Jiaotong University, Chengdu 613100, PR China
| | - Mengyu Zhang
- School of Life Science and Engineering, Southwest Jiaotong University, Chengdu 613100, PR China
| | - Lijiao Yang
- School of Life Science and Engineering, Southwest Jiaotong University, Chengdu 613100, PR China
| | - Xiaoqing Wu
- School of Life Science and Engineering, Southwest Jiaotong University, Chengdu 613100, PR China
| | - Rui Tan
- School of Life Science and Engineering, Southwest Jiaotong University, Chengdu 613100, PR China.
| | - Hezhong Jiang
- School of Life Science and Engineering, Southwest Jiaotong University, Chengdu 613100, PR China.
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Cui J, Tian H, Qi Y, Hu X, Li S, Zhang W, Wei Z, Zhang M, Liu Z, Abolfathi S. Impact of microplastic residues from polyurethane films on crop growth: Unraveling insights through transcriptomics and metabolomics analysis. ECOTOXICOLOGY AND ENVIRONMENTAL SAFETY 2024; 283:116826. [PMID: 39106570 DOI: 10.1016/j.ecoenv.2024.116826] [Citation(s) in RCA: 0] [Impact Index Per Article: 0] [Reference Citation Analysis] [Abstract] [Key Words] [Track Full Text] [Subscribe] [Scholar Register] [Received: 01/17/2024] [Revised: 06/08/2024] [Accepted: 07/30/2024] [Indexed: 08/09/2024]
Abstract
The utilisation of coated controlled-release fertilizers (CRFs) leads to the persistence of residual plastic films in agricultural soils, posing a potential threat to crop health. This study investigates the impacts of four residual films (0.39 %, w/w) derived from CRFs in soil, including petrochemical polyether, bio-based polyether, castor oil polyester, and wheat straw polyester polyurethane on wheat growth. This study found that PecPEUR significantly reduced wheat plant height, stem diameter, leaf area, and aboveground fresh weight by 24.8 %, 20.2 %, and 25.7 %. Through an in-depth exploration of transcriptomics and metabolomics, it has been discovered that all residual films disrupted glycolysis-related metabolic pathways in wheat roots, affecting seedling growth. Among them, PecPEUR significantly reduced the fresh weight of aboveground parts by 20.5 %. In contrast, polyester polyurethane residue had no discernible impact on aboveground wheat growth. This was attributed to the enrichment of wheat root genes in jasmonic acid and γ-aminobutyric acid metabolic pathways, thus mitigating oxidative stress, enhancing stress resistance, and ensuring normal plant growth. This study, for the first time, provides comprehensive insights into the effects of polyurethane film residue on wheat seedling growth, underscoring its potential as a promising alternative to conventional plastics in soil.
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Affiliation(s)
- Jing Cui
- National Engineering Research Center for Efficient Utilization of Soil and Fertilizer Resources, College of Recourses and Environment, Shandong Agricultural University, Taian, Shandong 271018, China
| | - Hongyu Tian
- National Engineering Research Center for Efficient Utilization of Soil and Fertilizer Resources, College of Recourses and Environment, Shandong Agricultural University, Taian, Shandong 271018, China
| | - Yingjie Qi
- Shandong (Linyi) Institute of Modern Agriculture, Zhejiang University, Linyi, Shandong 276041, China
| | - Xiaomin Hu
- National Engineering Research Center for Efficient Utilization of Soil and Fertilizer Resources, College of Recourses and Environment, Shandong Agricultural University, Taian, Shandong 271018, China
| | - Shuyue Li
- National Engineering Research Center for Efficient Utilization of Soil and Fertilizer Resources, College of Recourses and Environment, Shandong Agricultural University, Taian, Shandong 271018, China
| | - Wenrui Zhang
- National Engineering Research Center for Efficient Utilization of Soil and Fertilizer Resources, College of Recourses and Environment, Shandong Agricultural University, Taian, Shandong 271018, China
| | - Zhanbo Wei
- Engineering Laboratory for Green Fertilizers, Chinese Academy of Sciences, Shenyang 110016, China
| | - Min Zhang
- National Engineering Research Center for Efficient Utilization of Soil and Fertilizer Resources, College of Recourses and Environment, Shandong Agricultural University, Taian, Shandong 271018, China
| | - Zhiguang Liu
- National Engineering Research Center for Efficient Utilization of Soil and Fertilizer Resources, College of Recourses and Environment, Shandong Agricultural University, Taian, Shandong 271018, China.
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Li C, Wang L, Tong C, Li H, Qin Z, Zeng X, Chang Y, Li M, Yang Q. Molecular Insights into the Defense of Dioscorea opposita Cultivar Tiegun Callus Against Pathogenic and Endophytic Fungal Infection Through Transcriptome Analysis. PHYTOPATHOLOGY 2024:PHYTO04240125R. [PMID: 38810265 DOI: 10.1094/phyto-04-24-0125-r] [Citation(s) in RCA: 0] [Impact Index Per Article: 0] [Reference Citation Analysis] [Abstract] [Key Words] [Track Full Text] [Subscribe] [Scholar Register] [Indexed: 05/31/2024]
Abstract
Dioscorea opposita cultivar Tiegun is an economically important crop with high nutritional and medicinal value. Plants can activate complex and diverse defense mechanisms after infection by pathogenic fungi. Moreover, endophytic fungi can also trigger the plant immune system to resist pathogen invasion. However, the study of the effects of endophytic fungi on plant infection lags far behind that of pathogenic fungi, and the underlying mechanism is not fully understood. Here, the black spot pathogen Alternaria alternata and the endophytic fungus Penicillium halotolerans of Tiegun were identified and used to infect calli. The results showed that A. alternata could cause more severe membrane lipid peroxidation, whereas P. halotolerans could rapidly increase the activity of the plant antioxidant enzymes superoxide dismutase, peroxidase, and catalase; thus, the degree of damage to the callus caused by P. halotolerans was weaker than that caused by A. alternata. RNA sequencing analysis revealed that various plant defense pathways, such as phenylpropanoid biosynthesis, flavonoid biosynthesis, plant hormone signal transduction, and the mitogen-activated protein kinase signaling pathway, play important roles in triggering the plant immune response during fungal infection. Furthermore, the tryptophan metabolism, betalain biosynthesis, fatty acid degradation, flavonoid biosynthesis, tyrosine metabolism, and isoquinoline alkaloid biosynthesis pathways may accelerate the infection of pathogenic fungi, and the ribosome biogenesis pathway in eukaryotes may retard the damage caused by endophytic fungi. This study lays a foundation for exploring the infection mechanism of yam pathogens and endophytic fungi and provides insight for effective fungal disease control in agriculture.
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Affiliation(s)
- Chaochuang Li
- College of Life Sciences, Henan Normal University, Xinxiang 453007, China
- Henan International Joint Laboratory of Agricultural Microbial Ecology and Technology, Henan Normal University, Xinxiang 453007, China
| | - Lanning Wang
- College of Life Sciences, Henan Normal University, Xinxiang 453007, China
| | - Chenwei Tong
- College of Life Sciences, Henan Normal University, Xinxiang 453007, China
| | - Haibing Li
- College of Life Sciences, Henan Normal University, Xinxiang 453007, China
| | - Zhao Qin
- College of Life Sciences, Henan Normal University, Xinxiang 453007, China
| | - Xiangpeng Zeng
- College of Life Sciences, Henan Normal University, Xinxiang 453007, China
| | - Yingying Chang
- College of Life Sciences, Henan Normal University, Xinxiang 453007, China
| | - Mingjun Li
- College of Life Sciences, Henan Normal University, Xinxiang 453007, China
- Engineering Technology Research Center of Nursing and Utilization of Genuine Chinese Crude Drugs of Henan Province/Engineering Laboratory of Green Medicinal Material Biotechnology of Henan Province, Xinxiang 453007, China
| | - Qingxiang Yang
- College of Life Sciences, Henan Normal University, Xinxiang 453007, China
- Henan International Joint Laboratory of Agricultural Microbial Ecology and Technology, Henan Normal University, Xinxiang 453007, China
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Zhao S, Jiao J, Zhang C, Li F, Fan X, Wu P, Feng K, Li L. Identification of the function of a key gene NnHCT1 in lignin synthesis in petioles of Nelumbo nucifera. Int J Biol Macromol 2024; 274:133391. [PMID: 38917921 DOI: 10.1016/j.ijbiomac.2024.133391] [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: 05/17/2024] [Revised: 06/20/2024] [Accepted: 06/22/2024] [Indexed: 06/27/2024]
Abstract
Leaf petiole or stem strength is an important agronomic trait affecting the growth of underground organs as a channel for material exchange and plays a vital role in the quality and yield of crops and vegetables. There are two different types of petioles in lotus, floating leaf petioles and vertical leaf petioles; however, the internal difference mechanism between these petioles is unclear. In this study, we investigated the differences between the initial vertical leaf petioles and the initial floating leaf petioles based on RNA sequencing (RNA-seq), and >2858 differentially expressed genes were annotated. These genes were chiefly enriched in phenylpropanoid biosynthesis, which is the source of the lignin and cellulose in petioles and stems. Lignin biology-related gene NnHCT1 was identified, and subsequent biological function validation demonstrated that the transient overexpression of NnHCT1 significantly increased the lignin and cellulose contents in lotus petioles and tobacco leaves. In contrast, silencing NnHCT1 through virus-induced gene silencing significantly reduced petiole lignin synthesis. Additionally, differentially up-regulated MYB family transcription factors were identified using RNA-seq. Yeast-one-hybrid and dual-luciferase reporter assays demonstrated that MYB4 could bind to the NnHCT1 promoter and up-regulate NnHCT1 expression. These findings demonstrate the significant potential of NnHCT1 to enhance lignin synthesis, thereby improving stem or petiole resistance to stunting and explaining the need for the study of differential petiole relationships in plants.
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Affiliation(s)
- Shuping Zhao
- School of Horticulture and Gardens, Yangzhou University, Yangzhou 225009, China
| | - Jiao Jiao
- School of Horticulture and Gardens, Yangzhou University, Yangzhou 225009, China
| | - Chuyan Zhang
- School of Horticulture and Gardens, Yangzhou University, Yangzhou 225009, China
| | - Fenghua Li
- School of Horticulture and Gardens, Yangzhou University, Yangzhou 225009, China
| | - Xiaojing Fan
- School of Horticulture and Gardens, Yangzhou University, Yangzhou 225009, China
| | - Peng Wu
- School of Horticulture and Gardens, Yangzhou University, Yangzhou 225009, China
| | - Kai Feng
- School of Horticulture and Gardens, Yangzhou University, Yangzhou 225009, China
| | - Liangjun Li
- School of Horticulture and Gardens, Yangzhou University, Yangzhou 225009, China; Joint International Research Laboratory of Agriculture and Agri-Product Safety of Ministry of Education of China, Yangzhou University, Yangzhou 225009, China.
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Luomaranta M, Grones C, Choudhary S, Milhinhos A, Kalman TA, Nilsson O, Robinson KM, Street NR, Tuominen H. Systems genetic analysis of lignin biosynthesis in Populus tremula. THE NEW PHYTOLOGIST 2024. [PMID: 39072753 DOI: 10.1111/nph.19993] [Citation(s) in RCA: 0] [Impact Index Per Article: 0] [Reference Citation Analysis] [Abstract] [Key Words] [Grants] [Track Full Text] [Subscribe] [Scholar Register] [Received: 01/28/2024] [Accepted: 07/02/2024] [Indexed: 07/30/2024]
Abstract
The genetic control underlying natural variation in lignin content and composition in trees is not fully understood. We performed a systems genetic analysis to uncover the genetic regulation of lignin biosynthesis in a natural 'SwAsp' population of aspen (Populus tremula) trees. We analyzed gene expression by RNA sequencing (RNA-seq) in differentiating xylem tissues, and lignin content and composition using Pyrolysis-GC-MS in mature wood of 268 trees from 99 genotypes. Abundant variation was observed for lignin content and composition, and genome-wide association study identified proteins in the pentose phosphate pathway and arabinogalactan protein glycosylation among the top-ranked genes that are associated with these traits. Variation in gene expression and the associated genetic polymorphism was revealed through the identification of 312 705 local and 292 003 distant expression quantitative trait loci (eQTL). A co-expression network analysis suggested modularization of lignin biosynthesis and novel functions for the lignin-biosynthetic CINNAMYL ALCOHOL DEHYDROGENASE 2 and CAFFEOYL-CoA O-METHYLTRANSFERASE 3. PHENYLALANINE AMMONIA LYASE 3 was co-expressed with HOMEOBOX PROTEIN 5 (HB5), and the role of HB5 in stimulating lignification was demonstrated in transgenic trees. The systems genetic approach allowed linking natural variation in lignin biosynthesis to trees´ responses to external cues such as mechanical stimulus and nutrient availability.
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Affiliation(s)
- Mikko Luomaranta
- Umeå Plant Science Centre, Department of Plant Physiology, Umeå University, 90187, Umeå, Sweden
| | - Carolin Grones
- Umeå Plant Science Centre, Department of Plant Physiology, Umeå University, 90187, Umeå, Sweden
| | - Shruti Choudhary
- Department of Forest Genetics and Plant Physiology, Umeå Plant Science Centre, Swedish University of Agricultural Sciences, 90183, Umeå, Sweden
| | - Ana Milhinhos
- Umeå Plant Science Centre, Department of Plant Physiology, Umeå University, 90187, Umeå, Sweden
| | - Teitur Ahlgren Kalman
- Umeå Plant Science Centre, Department of Plant Physiology, Umeå University, 90187, Umeå, Sweden
| | - Ove Nilsson
- Department of Forest Genetics and Plant Physiology, Umeå Plant Science Centre, Swedish University of Agricultural Sciences, 90183, Umeå, Sweden
| | - Kathryn M Robinson
- Umeå Plant Science Centre, Department of Plant Physiology, Umeå University, 90187, Umeå, Sweden
| | - Nathaniel R Street
- Umeå Plant Science Centre, Department of Plant Physiology, Umeå University, 90187, Umeå, Sweden
- SciLifeLab, Umeå University, 90187, Umeå, Sweden
| | - Hannele Tuominen
- Department of Forest Genetics and Plant Physiology, Umeå Plant Science Centre, Swedish University of Agricultural Sciences, 90183, Umeå, Sweden
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6
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Tao J, Zhu L, Zhu L, Lei L, Zhao G. Colloidal lignin particle reinforces the stability of Pickering emulsions prepared with zein nanoparticle. Food Chem 2024; 460:140581. [PMID: 39067384 DOI: 10.1016/j.foodchem.2024.140581] [Citation(s) in RCA: 0] [Impact Index Per Article: 0] [Reference Citation Analysis] [Abstract] [Key Words] [Track Full Text] [Journal Information] [Subscribe] [Scholar Register] [Received: 03/19/2024] [Revised: 06/29/2024] [Accepted: 07/21/2024] [Indexed: 07/30/2024]
Abstract
Zein nanoparticle (ZNP) is at the forefront of research on Pickering emulsions, valued for its self-assembling and surfactant-free nature. Nevertheless, its emulsion stability is undermined by inadequate amphiphilicity. Colloidal lignin particle (CLP), characterized by its antithetical charge and amphiphilic nature, appears the promising for augmenting the stability of ZNP-based emulsion. This study meticulously investigated the impact of CLP on the colloidal properties and emulsifying performance of ZNP. The results revealed that electrostatic interactions between ZNP and CLP significantly mitigated the charge of ZNP and improved its hydrophilic/lipophilic balance. Under optimized conditions (1.0 wt% particle concentration, pH 4.0, 50% oil content), CLP notably reduced droplet sizes (41-225 μm) and enhanced the stability of ZNP-based Pickering emulsion, particularly at ZNP/CLP ratios of 6:4 and 5:5. In nature, CLP improved the stability ZNP-based Pickering emulsions via increased interfacial adsorption, enhanced steric hindrance, and reinforced viscous structure.
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Affiliation(s)
- Jianming Tao
- College of Food Science, Southwest University, Chongqing 400715, PR China.
| | - Lijun Zhu
- College of Food Science, Southwest University, Chongqing 400715, PR China
| | - Luyi Zhu
- College of Food Science, Southwest University, Chongqing 400715, PR China
| | - Lin Lei
- College of Food Science, Southwest University, Chongqing 400715, PR China; Chongqing Key Laboratory of Speciality Food Co-Built by Sichuan and Chongqing, Chongqing 400715, PR China.
| | - Guohua Zhao
- College of Food Science, Southwest University, Chongqing 400715, PR China; Chongqing Key Laboratory of Speciality Food Co-Built by Sichuan and Chongqing, Chongqing 400715, PR China.
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Peng Q, Shrestha A, Zhang Y, Fan J, Yu F, Wang G. How lignin biosynthesis responds to nitrogen in plants: a scoping review. PLANT BIOLOGY (STUTTGART, GERMANY) 2024. [PMID: 39032003 DOI: 10.1111/plb.13627] [Citation(s) in RCA: 0] [Impact Index Per Article: 0] [Reference Citation Analysis] [Abstract] [Key Words] [Grants] [Track Full Text] [Subscribe] [Scholar Register] [Received: 09/18/2023] [Accepted: 01/31/2024] [Indexed: 07/22/2024]
Abstract
Nitrogen (N) plays a critical role in the functioning of key amino acids and synthetic enzymes responsible for the various stages of lignin biosynthesis. However, the precise mechanisms through which N influences lignin biosynthesis have not been fully elucidated. This scoping review explores how lignin biosynthesis responds to N in plants. A systematic search of the literature in several databases was conducted using relevant keywords. Only 44 of the 1842 selected studies contained a range of plant species, experimental conditions, and research approaches. Lignin content, structure, and biosynthetic pathways in response to N are discussed, and possible response mechanisms of lignin under low N are proposed. Among the selected studies, 64.52% of the studies reter to lignin content found a negative correlation between N availability and lignin content. Usually, high N decreases the lignin content, delays cell lignification, increases p-hydroxyphenyl propane (H) monomer content, and regulates lignin synthesis through the expression of key genes (PAL, 4CL, CCR, CAD, COMT, LAC, and POD) encoding miRNAs and transcription factors (e.g., MYB, bHLH). N deficiency enhances lignin synthesis through the accumulation of phenylpropanoids, phenolics, and soluble carbohydrates, and indirect changes in phytohormones, secondary metabolites, etc. This review provides new insights and important references for future studies on the regulation of lignin biosynthesis.
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Affiliation(s)
- Q Peng
- Collaborative Innovation Centre of Sustainable Forestry in Southern China, College of Forestry, Nanjing Forestry University, Nanjing, Jiangsu, China
- Department of Forest Resources Management, Faculty of Forestry, The University of British Columbia, Vancouver, BC, Canada
| | - A Shrestha
- Department of Forest Resources Management, Faculty of Forestry, The University of British Columbia, Vancouver, BC, Canada
| | - Y Zhang
- Department of Forest Resources Management, Faculty of Forestry, The University of British Columbia, Vancouver, BC, Canada
- College of Horticulture and Forestry Sciences, Huazhong Agricultural University, Wuhan, China
| | - J Fan
- College of Horticulture, Jinling Institute of Technology, Nanjing, Jiangsu, China
| | - F Yu
- Collaborative Innovation Centre of Sustainable Forestry in Southern China, College of Forestry, Nanjing Forestry University, Nanjing, Jiangsu, China
| | - G Wang
- Department of Forest Resources Management, Faculty of Forestry, The University of British Columbia, Vancouver, BC, Canada
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Metz F, Olsen AM, Lu F, Myers KS, Allemann MN, Michener JK, Noguera DR, Donohue TJ. Catabolism of β-5 linked aromatics by Novosphingobium aromaticivorans. mBio 2024:e0171824. [PMID: 39012147 DOI: 10.1128/mbio.01718-24] [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: 06/10/2024] [Accepted: 06/17/2024] [Indexed: 07/17/2024] Open
Abstract
Aromatic compounds are an important source of commodity chemicals traditionally produced from fossil fuels. Aromatics derived from plant lignin can potentially be converted into commodity chemicals through depolymerization followed by microbial funneling of monomers and low molecular weight oligomers. This study investigates the catabolism of the β-5 linked aromatic dimer dehydrodiconiferyl alcohol (DC-A) by the bacterium Novosphingobium aromaticivorans. We used genome-wide screens to identify candidate genes involved in DC-A catabolism. Subsequent in vivo and in vitro analyses of these candidate genes elucidated a catabolic pathway composed of four required gene products and several partially redundant dehydrogenases that convert DC-A to aromatic monomers that can be funneled into the central aromatic metabolic pathway of N. aromaticivorans. Specifically, a newly identified γ-formaldehyde lyase, PcfL, opens the phenylcoumaran ring to form a stilbene and formaldehyde. A lignostilbene dioxygenase, LsdD, then cleaves the stilbene to generate the aromatic monomers vanillin and 5-formylferulate (5-FF). We also showed that the aldehyde dehydrogenase FerD oxidizes 5-FF before it is decarboxylated by LigW, yielding ferulic acid. We found that some enzymes involved in the β-5 catabolism pathway can act on multiple substrates and that some steps in the pathway can be mediated by multiple enzymes, providing new insights into the robust flexibility of aromatic catabolism in N. aromaticivorans. A comparative genomic analysis predicted that the newly discovered β-5 aromatic catabolic pathway is common within the order Sphingomonadales. IMPORTANCE In the transition to a circular bioeconomy, the plant polymer lignin holds promise as a renewable source of industrially important aromatic chemicals. However, since lignin contains aromatic subunits joined by various chemical linkages, producing single chemical products from this polymer can be challenging. One strategy to overcome this challenge is using microbes to funnel a mixture of lignin-derived aromatics into target chemical products. This approach requires strategies to cleave the major inter-unit linkages of lignin to release monomers for funneling into valuable products. In this study, we report newly discovered aspects of a pathway by which the Novosphingobium aromaticivorans DSM12444 catabolizes aromatics joined by the second most common inter-unit linkage in lignin, the β-5 linkage. This work advances our knowledge of aromatic catabolic pathways, laying the groundwork for future metabolic engineering of this and other microbes for optimized conversion of lignin into products.
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Affiliation(s)
- Fletcher Metz
- DOE Great Lakes Bioenergy Research Center, University of Wisconsin, Madison, Wisconsin, USA
- Wisconsin Energy Institute, University of Wisconsin, Madison, Wisconsin, USA
- Laboratory of Genetics, University of Wisconsin, Madison, Wisconsin, USA
| | - Abigail M Olsen
- DOE Great Lakes Bioenergy Research Center, University of Wisconsin, Madison, Wisconsin, USA
- Wisconsin Energy Institute, University of Wisconsin, Madison, Wisconsin, USA
| | - Fachuang Lu
- DOE Great Lakes Bioenergy Research Center, University of Wisconsin, Madison, Wisconsin, USA
- Wisconsin Energy Institute, University of Wisconsin, Madison, Wisconsin, USA
| | - Kevin S Myers
- DOE Great Lakes Bioenergy Research Center, University of Wisconsin, Madison, Wisconsin, USA
- Wisconsin Energy Institute, University of Wisconsin, Madison, Wisconsin, USA
| | - Marco N Allemann
- Biosciences Division, Oak Ridge National Laboratory, Oak Ridge, Tennessee, USA
| | - Joshua K Michener
- Biosciences Division, Oak Ridge National Laboratory, Oak Ridge, Tennessee, USA
| | - Daniel R Noguera
- DOE Great Lakes Bioenergy Research Center, University of Wisconsin, Madison, Wisconsin, USA
- Wisconsin Energy Institute, University of Wisconsin, Madison, Wisconsin, USA
- Department of Civil and Environmental Engineering, University of Wisconsin, Madison, Wisconsin, USA
| | - Timothy J Donohue
- DOE Great Lakes Bioenergy Research Center, University of Wisconsin, Madison, Wisconsin, USA
- Wisconsin Energy Institute, University of Wisconsin, Madison, Wisconsin, USA
- Department of Bacteriology, University of Wisconsin, Madison, Wisconsin, USA
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Unda F, de Vries L, Karlen SD, Rainbow J, Zhang C, Bartley LE, Kim H, Ralph J, Mansfield SD. Enhancing monolignol ferulate conjugate levels in poplar lignin via OsFMT1. BIOTECHNOLOGY FOR BIOFUELS AND BIOPRODUCTS 2024; 17:97. [PMID: 39003470 PMCID: PMC11246582 DOI: 10.1186/s13068-024-02544-y] [Citation(s) in RCA: 0] [Impact Index Per Article: 0] [Reference Citation Analysis] [Abstract] [Key Words] [Grants] [Track Full Text] [Subscribe] [Scholar Register] [Received: 05/04/2024] [Accepted: 06/25/2024] [Indexed: 07/15/2024]
Abstract
BACKGROUND The phenolic polymer lignin is one of the primary chemical constituents of the plant secondary cell wall. Due to the inherent plasticity of lignin biosynthesis, several phenolic monomers have been shown to be incorporated into the polymer, as long as the monomer can undergo radicalization so it can participate in coupling reactions. In this study, we significantly enhance the level of incorporation of monolignol ferulate conjugates into the lignin polymer to improve the digestibility of lignocellulosic biomass. RESULTS Overexpression of a rice Feruloyl-CoA Monolignol Transferase (FMT), OsFMT1, in hybrid poplar (Populus alba x grandidentata) produced transgenic trees clearly displaying increased cell wall-bound ester-linked ferulate, p-hydroxybenzoate, and p-coumarate, all of which are in the lignin cell wall fraction, as shown by NMR and DFRC. We also demonstrate the use of a novel UV-Vis spectroscopic technique to rapidly screen plants for the presence of both ferulate and p-hydroxybenzoate esters. Lastly we show, via saccharification assays, that the OsFMT1 transgenic p oplars have significantly improved processing efficiency compared to wild-type and Angelica sinensis-FMT-expressing poplars. CONCLUSIONS The findings demonstrate that OsFMT1 has a broad substrate specificity and a higher catalytic efficiency compared to the previously published FMT from Angelica sinensis (AsFMT). Importantly, enhanced wood processability makes OsFMT1 a promising gene to optimize the composition of lignocellulosic biomass.
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Affiliation(s)
- Faride Unda
- Department of Wood Science, Faculty of Forestry, University of British Columbia, Vancouver, BC, V6T 1Z4, Canada
- US Department of Energy (DOE) Great Lakes Bioenergy Research Center, The Wisconsin Energy Institute, University of Wisconsin-Madison, Madison, WI, 53726, USA
| | - Lisanne de Vries
- Department of Wood Science, Faculty of Forestry, University of British Columbia, Vancouver, BC, V6T 1Z4, Canada
- US Department of Energy (DOE) Great Lakes Bioenergy Research Center, The Wisconsin Energy Institute, University of Wisconsin-Madison, Madison, WI, 53726, USA
| | - Steven D Karlen
- US Department of Energy (DOE) Great Lakes Bioenergy Research Center, The Wisconsin Energy Institute, University of Wisconsin-Madison, Madison, WI, 53726, USA
- Department of Biochemistry, University of Wisconsin-Madison, Madison, WI, 53706, USA
| | - Jordan Rainbow
- Institute of Biological Chemistry, Washington State University, Pullman, WA, 99164, USA
| | - Chengcheng Zhang
- Department of Microbiology and Plant Biology, University of Oklahoma, Norman, OK, 73019, USA
| | - Laura E Bartley
- Institute of Biological Chemistry, Washington State University, Pullman, WA, 99164, USA
| | - Hoon Kim
- US Department of Energy (DOE) Great Lakes Bioenergy Research Center, The Wisconsin Energy Institute, University of Wisconsin-Madison, Madison, WI, 53726, USA
- US Department of Agriculture (USDA), Forest Service, Forest Products Laboratory (FPL), Madison, WI, 53726, USA
| | - John Ralph
- US Department of Energy (DOE) Great Lakes Bioenergy Research Center, The Wisconsin Energy Institute, University of Wisconsin-Madison, Madison, WI, 53726, USA
- Department of Biochemistry, University of Wisconsin-Madison, Madison, WI, 53706, USA
| | - Shawn D Mansfield
- Department of Wood Science, Faculty of Forestry, University of British Columbia, Vancouver, BC, V6T 1Z4, Canada.
- US Department of Energy (DOE) Great Lakes Bioenergy Research Center, The Wisconsin Energy Institute, University of Wisconsin-Madison, Madison, WI, 53726, USA.
- Botany Department, Faculty of Science, University of British Columbia, Vancouver, BC, V6T 1Z4, Canada.
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Jiang C, Lyu K, Zeng S, Wang X, Chen X. A Combined Metabolome and Transcriptome Reveals the Lignin Metabolic Pathway during the Developmental Stages of Peel Coloration in the 'Xinyu' Pear. Int J Mol Sci 2024; 25:7481. [PMID: 39000588 PMCID: PMC11242026 DOI: 10.3390/ijms25137481] [Citation(s) in RCA: 0] [Impact Index Per Article: 0] [Reference Citation Analysis] [Abstract] [Key Words] [MESH Headings] [Grants] [Track Full Text] [Figures] [Journal Information] [Subscribe] [Scholar Register] [Received: 06/05/2024] [Revised: 06/30/2024] [Accepted: 07/02/2024] [Indexed: 07/16/2024] Open
Abstract
Sand pear is the main cultivated pear species in China, and brown peel is a unique feature of sand pear. The formation of brown peel is related to the activity of the cork layer, of which lignin is an important component. The formation of brown peel is intimately associated with the biosynthesis and accumulation of lignin; however, the regulatory mechanism of lignin biosynthesis in pear peel remains unclear. In this study, we used a newly bred sand pear cultivar 'Xinyu' as the material to investigate the biosynthesis and accumulation of lignin at nine developmental stages using metabolomic and transcriptomic methods. Our results showed that the 30 days after flowering (DAF) to 50DAF were the key periods of lignin accumulation according to data analysis from the assays of lignin measurement, scanning electron microscope (SEM) observation, metabolomics, and transcriptomics. Through weighted gene co-expression network analysis (WGCNA), positively correlated modules with lignin were identified. A total of nine difference lignin components were identified and 148 differentially expressed genes (DEGs), including 10 structural genes (PAL1, C4H, two 4CL genes, HCT, CSE, two COMT genes, and two CCR genes) and MYB, NAC, ERF, and TCP transcription factor genes were involved in lignin metabolism. An analysis of RT-qPCR confirmed that these DEGs were involved in the biosynthesis and regulation of lignin. These findings further help us understand the mechanisms of lignin biosynthesis and provide a theoretical basis for peel color control and quality improvement in pear breeding and cultivation.
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Affiliation(s)
- Cuicui Jiang
- Fruit Research Institute, Fujian Academy of Agricultural Sciences, Fuzhou 350013, China
| | - Keliang Lyu
- Fruit Research Institute, Fujian Academy of Agricultural Sciences, Fuzhou 350013, China
| | - Shaomin Zeng
- Fruit Research Institute, Fujian Academy of Agricultural Sciences, Fuzhou 350013, China
| | - Xiao'an Wang
- Fruit Research Institute, Fujian Academy of Agricultural Sciences, Fuzhou 350013, China
| | - Xiaoming Chen
- Fruit Research Institute, Fujian Academy of Agricultural Sciences, Fuzhou 350013, China
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11
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Wu M, Li Y, Liu Z, Xia L, Xiang Y, Zhao L, Yang X, Li Z, Xie X, Wang L, Wang R, Xu S, Yang J. Genome-wide identification of the CAD gene family and functional analysis of putative bona fide CAD genes in tobacco ( Nicotiana tabacum L.). FRONTIERS IN PLANT SCIENCE 2024; 15:1400213. [PMID: 39040505 PMCID: PMC11261167 DOI: 10.3389/fpls.2024.1400213] [Citation(s) in RCA: 0] [Impact Index Per Article: 0] [Reference Citation Analysis] [Abstract] [Key Words] [Track Full Text] [Figures] [Subscribe] [Scholar Register] [Received: 03/13/2024] [Accepted: 06/11/2024] [Indexed: 07/24/2024]
Abstract
Cinnamyl alcohol dehydrogenase (CAD) plays a crucial role in lignin biosynthesis, and the gene family encoding various CAD isozymes has been cloned and characterized in numerous plant species. However, limited information regarding the CAD gene family in tobacco is currently available. In this study, we identified 10 CAD genes in Nicotiana tabacum, four in N. tomentosiformis, and six in N. sylvestris. The nucleotide and amino acid sequences of these tobacco CADs demonstrate high levels of similarity, whereas the putative protein sequences conservatively possessed two Zn2+ binding motifs and an NADP(H) cofactor binding motif. Both NtCAD1 and NtCAD2 had conservative substrate binding sites, similar to those possessed by bona fide CADs, and evidence from phylogenetic analysis as well as expression profiling supported their role as bona fide CADs involved in lignin biosynthesis. NtCAD1 has two paralogous genes, NtCAD1-1 and NtCAD1-2. Enzyme activity analysis revealed that NtCAD1-1 and NtCAD1-2 had a high affinity to coniferyl aldehyde, p-coumaryl aldehyde, and sinapyl aldehyde, whereas NtCAD2 preferred coniferyl aldehyde and p-coumaryl aldehyde as substrates. The kinetic parameter assay revealed that NtCAD1-2 functions as the most efficient enzyme. Downregulation of both NtCAD1-1 and NtCAD1-2 resulted in reddish-brown stems without significant changes in lignin content. Furthermore, NtCAD1-1, NtCAD1-2, and NtCAD2 showed distinct expression patterns in response to biotic and abiotic stresses, as well as different phytohormones. Our findings suggest that NtCAD1-1 and NtCAD1-2 are involved in lignin biosynthesis, with NtCAD1-2 also participating in both biological and abiotic stresses, whereas NtCAD2 plays a distinct role mainly in responding to biological and abiotic stresses in tobacco.
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Affiliation(s)
- Mingzhu Wu
- China Tobacco Gene Research Center, Zhengzhou Tobacco Research Institute of China National Tobacco Corporation (CNTC), Zhengzhou, China
| | - Yijun Li
- China Tobacco Gene Research Center, Zhengzhou Tobacco Research Institute of China National Tobacco Corporation (CNTC), Zhengzhou, China
| | - Zhengtai Liu
- Nanjing University of Chinese Medicine, Nanjing, China
- Institute of Botany, Jiangsu Province and Chinese Academy of Sciences, Nanjing, China
| | - Lin Xia
- China Tobacco Gene Research Center, Zhengzhou Tobacco Research Institute of China National Tobacco Corporation (CNTC), Zhengzhou, China
| | - Yiyu Xiang
- Nanjing University of Chinese Medicine, Nanjing, China
- Institute of Botany, Jiangsu Province and Chinese Academy of Sciences, Nanjing, China
| | - Lijie Zhao
- China Tobacco Gene Research Center, Zhengzhou Tobacco Research Institute of China National Tobacco Corporation (CNTC), Zhengzhou, China
| | - Xiaobei Yang
- China Tobacco Gene Research Center, Zhengzhou Tobacco Research Institute of China National Tobacco Corporation (CNTC), Zhengzhou, China
| | - Zefeng Li
- China Tobacco Gene Research Center, Zhengzhou Tobacco Research Institute of China National Tobacco Corporation (CNTC), Zhengzhou, China
| | - Xiaodong Xie
- China Tobacco Gene Research Center, Zhengzhou Tobacco Research Institute of China National Tobacco Corporation (CNTC), Zhengzhou, China
| | - Lin Wang
- College of Life Science, Henan Agricultural University, Zhengzhou, China
| | - Ren Wang
- Nanjing University of Chinese Medicine, Nanjing, China
- Institute of Botany, Jiangsu Province and Chinese Academy of Sciences, Nanjing, China
| | - Sheng Xu
- Nanjing University of Chinese Medicine, Nanjing, China
- Institute of Botany, Jiangsu Province and Chinese Academy of Sciences, Nanjing, China
| | - Jun Yang
- China Tobacco Gene Research Center, Zhengzhou Tobacco Research Institute of China National Tobacco Corporation (CNTC), Zhengzhou, China
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12
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Han J, Wang Z, Wu X, Xia J, Wang L, Wang Z, Zhang Y. Deciphering High-Temperature-Induced Lignin Biosynthesis in Wheat through Comprehensive Transcriptome Analysis. PLANTS (BASEL, SWITZERLAND) 2024; 13:1832. [PMID: 38999673 PMCID: PMC11243994 DOI: 10.3390/plants13131832] [Citation(s) in RCA: 0] [Impact Index Per Article: 0] [Reference Citation Analysis] [Abstract] [Key Words] [Grants] [Track Full Text] [Subscribe] [Scholar Register] [Received: 05/31/2024] [Revised: 06/24/2024] [Accepted: 07/02/2024] [Indexed: 07/14/2024]
Abstract
This study systematically investigated the physiological and molecular responses of the wheat mutant 'XC-MU201' under high-temperature stress through comprehensive transcriptome analysis and physiological measurements. RNA sequencing of 21 samples across seven different treatment groups revealed, through Weighted Gene Co-expression Network Analysis (WGCNA), 13 modules among 9071 genes closely related to high-temperature treatments. Gene Ontology (GO) and Kyoto Encyclopedia of Genes and Genomes (KEGG) pathway analyses showed significant enrichment of lignin biosynthesis-related modules under high-temperature conditions, especially at the H-10DAT, H-20DAT, and H-30DAT time points. Experimental results demonstrated a significant increase in lignin content in high-temperature-treated samples, confirmed by tissue staining methods, indicating wheat's adaptation to heat damage through lignin accumulation. The phenylalanine ammonia-lyase gene (TaPAL33) was significantly upregulated under high-temperature stress, peaking at H-30DAT, suggesting its critical role in cellular defense mechanisms. Overexpression of TaPAL33 in the wheat variety 'Xinchun 11' enhanced lignin synthesis but inhibited growth. Subcellular localization of GFP-labeled TaPAL33 in tobacco cells showed its distribution mainly in the cytoplasm and cell membrane. Transgenic wheat exhibited higher PAL enzyme activity, enhanced antioxidant defense, and reduced oxidative damage under high-temperature stress, outperforming wild-type wheat. These results highlight TaPAL33's key role in improving wheat heat tolerance and provide a genetic foundation for future research and applications.
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Affiliation(s)
- Junjie Han
- Institute of Nuclear and Biological Technology, Xinjiang Academy of Agricultural Sciences, Urumqi 830091, China
| | - Zhenlong Wang
- Institute of Nuclear and Biological Technology, Xinjiang Academy of Agricultural Sciences, Urumqi 830091, China
| | - Xianghu Wu
- Graduate School (Office of Academic Construction), Shihezi University, Shihezi 832003, China
| | - Jianqiang Xia
- Institute of Nuclear and Biological Technology, Xinjiang Academy of Agricultural Sciences, Urumqi 830091, China
| | - Lihong Wang
- Institute of Nuclear and Biological Technology, Xinjiang Academy of Agricultural Sciences, Urumqi 830091, China
| | - Zhong Wang
- Institute of Nuclear and Biological Technology, Xinjiang Academy of Agricultural Sciences, Urumqi 830091, China
| | - Yueqiang Zhang
- Institute of Nuclear and Biological Technology, Xinjiang Academy of Agricultural Sciences, Urumqi 830091, China
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13
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Keret R, Drew DM, Hills PN. Xylem cell size regulation is a key adaptive response to water deficit in Eucalyptus grandis. TREE PHYSIOLOGY 2024; 44:tpae068. [PMID: 38896029 PMCID: PMC11247191 DOI: 10.1093/treephys/tpae068] [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: 02/14/2024] [Revised: 06/06/2024] [Accepted: 06/18/2024] [Indexed: 06/21/2024]
Abstract
Future climatic scenarios forecast increasingly frequent droughts that will pose substantial consequences on tree mortality. In light of this, drought-tolerant eucalypts have been propagated; however, the severity of these conditions will invoke adaptive responses, impacting the commercially valuable wood properties. To determine what mechanisms govern the wood anatomical adaptive response, highly controlled drought experiments were conducted in Eucalyptus grandis W. Hill ex Maiden, with the tree physiology and transcriptome closely monitored. In response to water deficit, E. grandis displays an isohydric stomatal response to conserve water and enable stem growth to continue, albeit at a reduced rate. Maintaining gaseous exchange is likely a critical short-term response that drives the formation of hydraulically safer xylem. For instance, the development of significantly smaller fibers and vessels was found to increase cellular density, thereby promoting drought tolerance through improved functional redundancy, as well as implosion and cavitation resistance. The transcriptome was explored to identify the molecular mechanisms responsible for controlling xylem cell size during prolonged water deficit. Downregulation of genes associated with cell wall remodeling and the biosynthesis of cellulose, hemicellulose and pectin appeared to coincide with a reduction in cellular enlargement during drought. Furthermore, transcript levels of NAC and MYB transcription factors, vital for cell wall component biosynthesis, were reduced, while those linked to lignification increased. The upregulation of EgCAD and various peroxidases under water deficit did not correlate with an increased lignin composition. However, with the elevated cellular density, a higher lignin content per xylem cross-sectional area was observed, potentially enhancing hydraulic safety. These results support the requirement for higher density, drought-adapted wood as a long-term adaptive response in E. grandis, which is largely influenced by the isohydric stomatal response coupled with cellular expansion-related molecular processes.
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Affiliation(s)
- Rafael Keret
- Institute for Plant Biotechnology, Department of Genetics, Stellenbosch University, Private Bag X1, Matieland, Stellenbosch 7602, South Africa
- Department of Forestry and Wood Sciences, Stellenbosch University, Bosman St, Stellenbosch 7599, South Africa
| | - David M Drew
- Department of Forestry and Wood Sciences, Stellenbosch University, Bosman St, Stellenbosch 7599, South Africa
| | - Paul N Hills
- Institute for Plant Biotechnology, Department of Genetics, Stellenbosch University, Private Bag X1, Matieland, Stellenbosch 7602, South Africa
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Yao Y, Nan L, Wang K, Xia J, Ma B, Cheng J. Integrative leaf anatomy structure, physiology, and metabolome analyses revealed the response to drought stress in sainfoin at the seedling stage. PHYTOCHEMICAL ANALYSIS : PCA 2024; 35:1174-1185. [PMID: 38553821 DOI: 10.1002/pca.3351] [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: 01/08/2024] [Revised: 03/07/2024] [Accepted: 03/07/2024] [Indexed: 07/03/2024]
Abstract
INTRODUCTION Sainfoin (Onobrychis viciaefolia) is a vital legume forage, and drought is the primary element impeding sainfoin growth. OBJECTIVE The anatomical structure, physiological indexes, and metabolites of the leaves of sainfoin seedlings with a drought-resistant line of P1 (DRL) and a drought-sensitive material of 2049 (DSM) were analyzed under drought (-1.0 MPa) with polyethylene glycol-6000 (PEG-6000). METHODS The leaf anatomy was studied by the paraffin section method. The related physiological indexes were measured by the hydroxylamine oxidation method, titanium sulfate colorimetric method, thiobarbituric acid method, acidic ninhydrin colorimetric method, and Coomassie brilliant blue method. The metabolomics analysis was composed of liquid chromatography tandem high-resolution mass spectrometry (LC-MS/MS). RESULTS The results revealed that the thickness of the epidermis, palisade tissue, and sponge tissue of DRL were significantly greater than those of DSM. The leaves of DRL exhibited lower levels of superoxide anion (O2 •-) production rate, hydrogen peroxide (H2O2) content, and malondialdehyde (MDA) content compared with DSM, while proline (Pro) content and soluble protein (SP) content were significantly higher than those of DSM. A total of 391 differential metabolites were identified in two samples. Kyoto Encyclopedia of Genes and Genomes (KEGG) enrichment showed that the primary differential metabolites were concentrated into the tyrosine metabolism; isoquinoline alkaloid biosynthesis; ubiquinone and other terpenoid quinone biosynthesis; neomycin, kanamycin, and gentamicin biosynthesis; and anthocyanin biosynthesis metabolic pathways. CONCLUSION Compared with DSM, DRL had more complete anatomical structure, lower active oxygen content, and higher antioxidant level. The results improved our insights into the drought-resistant mechanisms in sainfoin.
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Affiliation(s)
- Yuheng Yao
- College of Grassland Science, Key Laboratory of Grassland Ecosystem (Ministry of Education), Gansu Agricultural University, Lanzhou, Gansu, China
| | - Lili Nan
- College of Grassland Science, Key Laboratory of Grassland Ecosystem (Ministry of Education), Gansu Agricultural University, Lanzhou, Gansu, China
| | - Kun Wang
- College of Grassland Science, Key Laboratory of Grassland Ecosystem (Ministry of Education), Gansu Agricultural University, Lanzhou, Gansu, China
| | - Jing Xia
- College of Grassland Science, Key Laboratory of Grassland Ecosystem (Ministry of Education), Gansu Agricultural University, Lanzhou, Gansu, China
| | - Biao Ma
- College of Grassland Science, Key Laboratory of Grassland Ecosystem (Ministry of Education), Gansu Agricultural University, Lanzhou, Gansu, China
| | - Jiao Cheng
- College of Grassland Science, Key Laboratory of Grassland Ecosystem (Ministry of Education), Gansu Agricultural University, Lanzhou, Gansu, China
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15
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Zhang L, Yang H, Feng T, Xu Y, Tang X, Yang X, Wang-Pruski G, Zhang Z. Root suberization in the response mechanism of melon to autotoxicity. PLANT PHYSIOLOGY AND BIOCHEMISTRY : PPB 2024; 212:108787. [PMID: 38850731 DOI: 10.1016/j.plaphy.2024.108787] [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: 02/02/2024] [Revised: 05/11/2024] [Accepted: 05/29/2024] [Indexed: 06/10/2024]
Abstract
Continuous cropping obstacles poses significant challenges for melon cultivation, with autotoxicity being a primary inducer. Suberization of cells or tissues is a vital mechanism for plant stress response. Our study aimed to elucidate the potential mechanism of root suberization in melon's response to autotoxicity. Cinnamic acid was used to simulate autotoxicity. Results showed that autotoxicity worsened the root morphology and activity of seedlings. Significant reductions were observed in root length, diameter, surface area, volume and fork number compared to the control in the later stage of treatment, with a decrease ranging from 20% to 50%. The decrease in root activity ranged from 16.74% to 29.31%. Root suberization intensified, and peripheral suberin deposition became more prominent. Autotoxicity inhibited phenylalanineammonia-lyase activity, the decrease was 50% at 16 h. The effect of autotoxicity on cinnamylalcohol dehydrogenase and cinnamate 4-hydroxylase activity showed an initial increase followed by inhibition, resulting in reductions of 34.23% and 44.84% at 24 h, respectively. The peroxidase activity only significantly increased at 24 h, with an increase of 372%. Sixty-three differentially expressed genes (DEGs) associated with root suberization were identified, with KCS, HCT, and CYP family showing the highest gene abundance. GO annotated DEGs into nine categories, mainly related to binding and catalytic activity. DEGs were enriched in 27 KEGG pathways, particularly those involved in keratin, corkene, and wax biosynthesis. Seven proteins, including C4H, were centrally positioned within the protein interaction network. These findings provide insights for improving stress resistance in melons and breeding stress-tolerant varieties.
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Affiliation(s)
- Lizhen Zhang
- Joint FAFU-Dalhousie Lab, College of Horticulture, Fujian Agriculture and Forestry University, Fuzhou, 350002, China
| | - Hao Yang
- Joint FAFU-Dalhousie Lab, College of Horticulture, Fujian Agriculture and Forestry University, Fuzhou, 350002, China; Fujian Yongan Vegetable Science and Technology Backyard, Sanming, 366000, China
| | - Taojie Feng
- Joint FAFU-Dalhousie Lab, College of Horticulture, Fujian Agriculture and Forestry University, Fuzhou, 350002, China; Fujian Yongan Vegetable Science and Technology Backyard, Sanming, 366000, China
| | - Yuxuan Xu
- Joint FAFU-Dalhousie Lab, College of Horticulture, Fujian Agriculture and Forestry University, Fuzhou, 350002, China; Fujian Yongan Vegetable Science and Technology Backyard, Sanming, 366000, China
| | - Xianhuan Tang
- Joint FAFU-Dalhousie Lab, College of Horticulture, Fujian Agriculture and Forestry University, Fuzhou, 350002, China; Fujian Yongan Vegetable Science and Technology Backyard, Sanming, 366000, China
| | - Xinyue Yang
- Joint FAFU-Dalhousie Lab, College of Horticulture, Fujian Agriculture and Forestry University, Fuzhou, 350002, China; Fujian Yongan Vegetable Science and Technology Backyard, Sanming, 366000, China
| | - Gefu Wang-Pruski
- Joint FAFU-Dalhousie Lab, College of Horticulture, Fujian Agriculture and Forestry University, Fuzhou, 350002, China; Department of Plant, Food, and Environmental Sciences, Faculty of Agriculture, Dalhousie University, Truro, NS, B2N5E3, Canada
| | - Zhizhong Zhang
- Joint FAFU-Dalhousie Lab, College of Horticulture, Fujian Agriculture and Forestry University, Fuzhou, 350002, China; Key Laboratory of Ministry of Education for Genetics, Breeding and Comprehensive Utilization of Crops, Fuzhou, 350002, China.
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16
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Singh P, Kumari A, Khaladhar VC, Singh N, Pathak PK, Kumar V, Kumar RJ, Jain P, Thakur JK, Fernie AR, Bauwe H, Raghavendra AS, Gupta KJ. Serine hydroxymethyltransferase6 is involved in growth and resistance against pathogens via ethylene and lignin production in Arabidopsis. THE PLANT JOURNAL : FOR CELL AND MOLECULAR BIOLOGY 2024. [PMID: 38924321 DOI: 10.1111/tpj.16897] [Citation(s) in RCA: 0] [Impact Index Per Article: 0] [Reference Citation Analysis] [Abstract] [Key Words] [Grants] [Track Full Text] [Subscribe] [Scholar Register] [Received: 03/07/2024] [Revised: 06/04/2024] [Accepted: 06/13/2024] [Indexed: 06/28/2024]
Abstract
Photorespiratory serine hydroxymethyltransferases (SHMTs) are important enzymes of cellular one-carbon metabolism. In this study, we investigated the potential role of SHMT6 in Arabidopsis thaliana. We found that SHMT6 is localized in the nucleus and expressed in different tissues during development. Interestingly SHMT6 is inducible in response to avirulent, virulent Pseudomonas syringae and to Fusarium oxysporum infection. Overexpression of SHMT6 leads to larger flowers, siliques, seeds, roots, and consequently an enhanced overall biomass. This enhanced growth was accompanied by increased stomatal conductance and photosynthetic capacity as well as ATP, protein, and chlorophyll levels. By contrast, a shmt6 knockout mutant displayed reduced growth. When challenged with Pseudomonas syringae pv tomato (Pst) DC3000 expressing AvrRpm1, SHMT6 overexpression lines displayed a clear hypersensitive response which was characterized by enhanced electrolyte leakage and reduced bacterial growth. In response to virulent Pst DC3000, the shmt6 mutant developed severe disease symptoms and becomes very susceptible, whereas SHMT6 overexpression lines showed enhanced resistance with increased expression of defense pathway associated genes. In response to Fusarium oxysporum, overexpression lines showed a reduction in symptoms. Moreover, SHMT6 overexpression lead to enhanced production of ethylene and lignin, which are important components of the defense response. Collectively, our data revealed that SHMT6 plays an important role in development and defense against pathogens.
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Affiliation(s)
- Pooja Singh
- National Institute of Plant Genome Research, Aruna Asaf Ali Marg, New Delhi, 110067, India
| | - Aprajita Kumari
- National Institute of Plant Genome Research, Aruna Asaf Ali Marg, New Delhi, 110067, India
| | | | - Namrata Singh
- National Institute of Plant Genome Research, Aruna Asaf Ali Marg, New Delhi, 110067, India
| | - Pradeep Kumar Pathak
- National Institute of Plant Genome Research, Aruna Asaf Ali Marg, New Delhi, 110067, India
| | - Vinod Kumar
- National Institute of Plant Genome Research, Aruna Asaf Ali Marg, New Delhi, 110067, India
| | - Ritika Jantu Kumar
- National Institute of Plant Genome Research, Aruna Asaf Ali Marg, New Delhi, 110067, India
| | - Priyanka Jain
- National Institute of Plant Genome Research, Aruna Asaf Ali Marg, New Delhi, 110067, India
- AIMMSCR, Amity University Uttar Pradesh, Sector 125, Noida, 201313, India
| | - Jitendra Kumar Thakur
- Plant Transcription Regulation Group, International Centre for Genetic Engineering and Biotechnology, Aruna Asaf Ali Marg, New Delhi, 110067, India
| | - Alisdair R Fernie
- Max Planck Institute of Molecular Plant Physiology, Potsdam, Germany
| | - Hermann Bauwe
- Department of Plant Physiology, University of Rostock, Rostock, D-18051, Germany
| | - A S Raghavendra
- School of Life Sciences, Department of Plant Sciences University of Hyderabad, Hyderabad, 500046, India
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Febres VJ, Fadli A, Meyering B, Yu F, Bowman KD, Chaparro JX, Albrecht U. Dissection of transcriptional events in graft incompatible reactions of "Bearss" lemon ( Citrus limon) and "Valencia" sweet orange ( C. sinensis) on a novel citrandarin ( C. reticulata × Poncirus trifoliata) rootstock. FRONTIERS IN PLANT SCIENCE 2024; 15:1421734. [PMID: 38966146 PMCID: PMC11222572 DOI: 10.3389/fpls.2024.1421734] [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: 04/22/2024] [Accepted: 06/03/2024] [Indexed: 07/06/2024]
Abstract
Citrus is commercially propagated via grafting, which ensures trees have consistent fruit traits combined with favorable traits from the rootstock such as soil adaptability, vigor, and resistance to soil pathogens. Graft incompatibility can occur when the scion and rootstock are not able to form a permanent, healthy union. Understanding and preventing graft incompatibility is of great importance in the breeding of new fruit cultivars and in the choice of scion and rootstock by growers. The rootstock US-1283, a citrandarin generated from a cross of "Ninkat" mandarin (Citrus reticulata) and "Gotha Road" #6 trifoliate orange (Poncirus trifoliata), was released after years of field evaluation because of its superior productivity and good fruit quality on "Hamlin" sweet orange (C. sinensis) under Florida's growing conditions. Subsequently, it was observed that trees of "Bearss" lemon (C. limon) and "Valencia" sweet orange (C. sinensis) grafted onto US-1283 exhibited unhealthy growth near the graft union. The incompatibility manifested as stem grooving and necrosis underneath the bark on the rootstock side of the graft. Another citrandarin rootstock, US-812 (C. reticulata "Sunki" × P. trifoliata "Benecke"), is fully graft compatible with the same scions. Transcriptome analysis was performed on the vascular tissues above and below the graft union of US-812 and US-1283 graft combinations with "Bearss" and "Valencia" to identify expression networks associated with incompatibility and help understand the processes and potential causes of incompatibility. Transcriptional reprogramming was stronger in the incompatible rootstock than in the grafted scions. Differentially expressed genes (DEGs) in US-1283, but not the scions, were associated with oxidative stress and plant defense, among others, similar to a pathogen-induced immune response localized to the rootstock; however, no pathogen infection was detected. Therefore, it is hypothesized that this response could have been triggered by signaling miscommunications between rootstock and scion either through (1) unknown molecules from the scion that were perceived as danger signals by the rootstock, (2) missing signals from the scion or missing receptors in the rootstock necessary for the formation of a healthy graft union, (3) the overall perception of the scion by the rootstock as non-self, or (4) a combination of the above.
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Affiliation(s)
- Vicente J. Febres
- Horticultural Sciences Department, University of Florida/Institute of Food and Agricultural Sciences (IFAS), Gainesville, FL, United States
| | - Anas Fadli
- Southwest Florida Research and Education Center, University of Florida/Institute of Food and Agricultural Sciences (IFAS), Immokalee, FL, United States
| | - Bo Meyering
- Southwest Florida Research and Education Center, University of Florida/Institute of Food and Agricultural Sciences (IFAS), Immokalee, FL, United States
| | - Fahong Yu
- Interdisciplinary Center for Biotechnology Research (ICBR), University of Florida, Gainesville, FL, United States
| | - Kim D. Bowman
- Horticultural Research Laboratory, United States Department of Agriculture (USDA), Fort Pierce, FL, United States
| | - Jose Xavier Chaparro
- Horticultural Sciences Department, University of Florida/Institute of Food and Agricultural Sciences (IFAS), Gainesville, FL, United States
| | - Ute Albrecht
- Southwest Florida Research and Education Center, University of Florida/Institute of Food and Agricultural Sciences (IFAS), Immokalee, FL, United States
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18
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Huang X, Liu L, Qiang X, Meng Y, Li Z, Huang F. Integrated Multi-Omics Analysis to Reveal the Molecular Mechanisms of Inflorescence Elongation in Medicago sativa. Int J Mol Sci 2024; 25:6497. [PMID: 38928203 PMCID: PMC11203646 DOI: 10.3390/ijms25126497] [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: 05/23/2024] [Revised: 06/08/2024] [Accepted: 06/11/2024] [Indexed: 06/28/2024] Open
Abstract
The morphological architecture of inflorescence influences seed production. The regulatory mechanisms underlying alfalfa (Medicago sativa) inflorescence elongation remain unclear. Therefore, in this study, we conducted a comparative analysis of the transcriptome, proteome, and metabolome of two extreme materials at three developmental stages to explore the mechanisms underlying inflorescence elongation in alfalfa. We observed the developmental processes of long and short inflorescences and found that the elongation capacity of alfalfa with long inflorescence was stronger than that of alfalfa with short inflorescences. Furthermore, integrative analysis of the transcriptome and proteome indicated that the phenylpropanoid biosynthesis pathway was closely correlated with the structural formation of the inflorescence. Additionally, we identified key genes and proteins associated with lignin biosynthesis based on the differential expressed genes and proteins (DEGs and DEPs) involved in phenylpropanoid biosynthesis. Moreover, targeted hormone metabolome analysis revealed that IAA, GA, and CK play an important role in the peduncle elongation of alfalfa inflorescences. Based on omics analysis, we detected key genes and proteins related to plant hormone biosynthesis and signal transduction. From the WGCNA and WPCNA results, we furthermore screened 28 candidate genes and six key proteins that were correlated with lignin biosynthesis, plant hormone biosynthesis, and signaling pathways. In addition, 19 crucial transcription factors were discovered using correlation analysis that might play a role in regulating candidate genes. This study provides insight into the molecular mechanism of inflorescence elongation in alfalfa and establishes a theoretical foundation for improving alfalfa seed production.
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Affiliation(s)
| | - Lei Liu
- Institute of Grassland Research of Chinese Academy of Agricultural Sciences, Hohhot 100081, China; (X.H.); (Y.M.); (Z.L.); (F.H.)
| | - Xiaojing Qiang
- Institute of Grassland Research of Chinese Academy of Agricultural Sciences, Hohhot 100081, China; (X.H.); (Y.M.); (Z.L.); (F.H.)
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Busch A, Gerbracht JV, Davies K, Hoecker U, Hess S. Comparative transcriptomics elucidates the cellular responses of an aeroterrestrial zygnematophyte to UV radiation. JOURNAL OF EXPERIMENTAL BOTANY 2024; 75:3624-3642. [PMID: 38520340 PMCID: PMC11156808 DOI: 10.1093/jxb/erae131] [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: 11/13/2023] [Accepted: 03/22/2024] [Indexed: 03/25/2024]
Abstract
The zygnematophytes are the closest relatives of land plants and comprise several lineages that adapted to a life on land. Species of the genus Serritaenia form colorful, mucilaginous capsules, which surround the cells and block harmful solar radiation, one of the major terrestrial stressors. In eukaryotic algae, this 'sunscreen mucilage' represents a unique photoprotective strategy, whose induction and chemical background are unknown. We generated a de novo transcriptome of Serritaenia testaceovaginata and studied its gene regulation under moderate UV radiation (UVR) that triggers sunscreen mucilage under experimental conditions. UVR induced the repair of DNA and the photosynthetic apparatus as well as the synthesis of aromatic specialized metabolites. Specifically, we observed pronounced expressional changes in the production of aromatic amino acids, phenylpropanoid biosynthesis genes, potential cross-membrane transporters of phenolics, and extracellular, oxidative enzymes. Interestingly, the most up-regulated enzyme was a secreted class III peroxidase, whose embryophyte homologs are involved in apoplastic lignin formation. Overall, our findings reveal a conserved, plant-like UVR perception system (UVR8 and downstream factors) in zygnematophyte algae and point to a polyphenolic origin of the sunscreen pigment of Serritaenia, whose synthesis might be extracellular and oxidative, resembling that of plant lignins.
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Affiliation(s)
- Anna Busch
- Department of Biology, University of Cologne, Zülpicher Str. 47b, D-50674 Cologne, Germany
| | - Jennifer V Gerbracht
- Department of Biology, University of Cologne, Zülpicher Str. 47b, D-50674 Cologne, Germany
| | - Kevin Davies
- The New Zealand Institute for Plant and Food Research Limited, Private Bag 11600, Palmerston North 4442, New Zealand
| | - Ute Hoecker
- Institute for Plant Sciences and Cluster of Excellence on Plant Sciences (CEPLAS), Biocenter, University of Cologne, Zülpicher Strasse 47b, D-50674, Cologne, Germany
| | - Sebastian Hess
- Department of Biology, University of Cologne, Zülpicher Str. 47b, D-50674 Cologne, Germany
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20
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Pan C, Zhang M, Chen J, Lu H, Zhao X, Chen X, Wang L, Guo P, Liu S. miR397 regulates cadmium stress response by coordinating lignin polymerization in the root exodermis in Kandelia obovata. JOURNAL OF HAZARDOUS MATERIALS 2024; 471:134313. [PMID: 38669927 DOI: 10.1016/j.jhazmat.2024.134313] [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: 02/29/2024] [Revised: 04/08/2024] [Accepted: 04/14/2024] [Indexed: 04/28/2024]
Abstract
Secondary lignification of the root exodermis of Kandelia obovata is crucial for its response to adversity such as high salinity and anaerobic environment, and this lignification is also effective in blocking cadmium transport to the roots. However, how the differences in lignification of root exodermis at different developmental stages respond to Cd stress and its regulatory mechanisms have not been revealed. In this study, after analyzing the root structure and cell wall thickness using a Phenom scanning electron microscope as well as measuring cadmium content in the root cell wall, we found that the exodermis of young and mature roots of K. obovata responded to Cd stress through the polymerization of different lignin monomers, forming two different mechanisms: chelation and blocking. Through small RNA sequencing, RLM-5'-RACE and dual luciferase transient expression system, we found that miR397 targets and regulates KoLAC4/17/7 expression. The expression of KoLAC4/17 promoted the accumulation of guaiacyl lignin during lignification and enhanced the binding of cadmium to the cell wall. Meanwhile, KoLAC7 expression promotes the accumulation of syringyl lignin during lignification, which enhances the obstruction of cadmium and improves the tolerance to cadmium. These findings enhance our understanding of the molecular mechanisms underlying the differential lignification of the root exodermis of K. obovata in response to cadmium stress, and provide scientific guidance for the conservation of mangrove forests under heavy metal pollution.
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Affiliation(s)
- Chenglang Pan
- Fujian Key Laboratory on Conservation and Sustainable Utilization of Marine Biodiversity, Fuzhou Institute of Oceanography, Minjiang University, Fuzhou 350108, China; Technology Innovation Center for Monitoringand Restoration Engineering of Ecological Fragile Zonein Southeast China, Ministry of Natural Resources, Fuzhou 350001, China.
| | - Mingxiong Zhang
- Fujian Key Laboratory on Conservation and Sustainable Utilization of Marine Biodiversity, Fuzhou Institute of Oceanography, Minjiang University, Fuzhou 350108, China; College of Resource and Environmental Science, Fujian Agriculture and Forestry University, Fuzhou 350002, China
| | - Jianming Chen
- Fujian Key Laboratory on Conservation and Sustainable Utilization of Marine Biodiversity, Fuzhou Institute of Oceanography, Minjiang University, Fuzhou 350108, China; Technology Innovation Center for Monitoringand Restoration Engineering of Ecological Fragile Zonein Southeast China, Ministry of Natural Resources, Fuzhou 350001, China
| | - Haoliang Lu
- Key Laboratory of Ministry of Education for Coastal and Wetland Ecosystems, College of the Environment and Ecology, Xiamen University, Xiamen 361102, PR China
| | - Xuemei Zhao
- Fujian Key Laboratory on Conservation and Sustainable Utilization of Marine Biodiversity, Fuzhou Institute of Oceanography, Minjiang University, Fuzhou 350108, China
| | - Xiaofeng Chen
- Fujian Key Laboratory on Conservation and Sustainable Utilization of Marine Biodiversity, Fuzhou Institute of Oceanography, Minjiang University, Fuzhou 350108, China
| | - Lu Wang
- Fujian Key Laboratory on Conservation and Sustainable Utilization of Marine Biodiversity, Fuzhou Institute of Oceanography, Minjiang University, Fuzhou 350108, China; Technology Innovation Center for Monitoringand Restoration Engineering of Ecological Fragile Zonein Southeast China, Ministry of Natural Resources, Fuzhou 350001, China
| | - Pingping Guo
- Fujian Minjiang River Estuary Wetland National Nature Reserve Administrative Office, Fuzhou 350001, China
| | - Shuyu Liu
- Fujian Key Laboratory on Conservation and Sustainable Utilization of Marine Biodiversity, Fuzhou Institute of Oceanography, Minjiang University, Fuzhou 350108, China; College of Resource and Environmental Science, Fujian Agriculture and Forestry University, Fuzhou 350002, China
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Deng K, Li Z, Huang T, Huang J. Noncoding RNAs in regulation of plant secondary metabolism. PLANT PHYSIOLOGY AND BIOCHEMISTRY : PPB 2024; 211:108718. [PMID: 38733939 DOI: 10.1016/j.plaphy.2024.108718] [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: 05/10/2023] [Revised: 05/04/2024] [Accepted: 05/08/2024] [Indexed: 05/13/2024]
Abstract
Plant secondary metabolites (PSMs) are a large class of structurally diverse molecules, mainly consisting of terpenoids, phenolic compounds, and nitrogen-containing compounds, which play active roles in plant development and stress responses. The biosynthetic processes of PSMs are governed by a sophisticated regulatory network at multiple levels. Noncoding RNAs (ncRNAs) such as microRNAs (miRNAs), long ncRNAs (lncRNAs), and circular RNAs (circRNAs) may serve as post-transcriptional regulators for plant secondary metabolism through acting on genes encoding either transcription factors or participating enzymes in relevant metabolic pathways. High-throughput sequencing technologies have facilitated the large-scale identifications of ncRNAs potentially involved in plant secondary metabolism in model plant species as well as certain species with enriched production of specific types of PSMs. Moreover, a series of miRNA-target modules have been functionally characterized to be responsible for regulating PSM biosynthesis and accumulation in plants under abiotic or biotic stresses. In this review, we will provide an overview of current findings on the ncRNA-mediated regulation of plant secondary metabolism with special attention to its participation in plant stress responses, and discuss possible issues to be addressed in future fundamental research and breeding practice.
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Affiliation(s)
- Keyin Deng
- Guangdong Provincial Key Laboratory for Plant Epigenetics, College of Life Sciences and Oceanography, Shenzhen University, Shenzhen, 518055, China
| | - Ziwei Li
- Guangdong Provincial Key Laboratory for Plant Epigenetics, College of Life Sciences and Oceanography, Shenzhen University, Shenzhen, 518055, China
| | - Tengbo Huang
- Guangdong Provincial Key Laboratory for Plant Epigenetics, College of Life Sciences and Oceanography, Shenzhen University, Shenzhen, 518055, China
| | - Jianzi Huang
- Guangdong Provincial Key Laboratory for Plant Epigenetics, College of Life Sciences and Oceanography, Shenzhen University, Shenzhen, 518055, China.
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22
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Liu H, Fang H, Zhang G, Li J, Zhang X, Li Y. De novo transcriptome profiling reveals the patterns of gene expression in plum fruits with bud mutations. PHYSIOLOGY AND MOLECULAR BIOLOGY OF PLANTS : AN INTERNATIONAL JOURNAL OF FUNCTIONAL PLANT BIOLOGY 2024; 30:909-919. [PMID: 38974351 PMCID: PMC11222343 DOI: 10.1007/s12298-024-01472-3] [Citation(s) in RCA: 0] [Impact Index Per Article: 0] [Reference Citation Analysis] [Abstract] [Key Words] [Grants] [Track Full Text] [Subscribe] [Scholar Register] [Received: 11/06/2023] [Revised: 06/05/2024] [Accepted: 06/10/2024] [Indexed: 07/09/2024]
Abstract
Bud mutation is a common technique for plant breeding and can provide a large number of breeding materials. Through traditional breeding methods, we obtained a plum plant with bud mutations (named "By") from an original plum variety (named "B"). The ripening period of "By" fruit was longer than that of "B" fruit, and its taste was better. In order to understand the characteristics of these plum varieties, we used transcriptome analysis and compared the gene expression patterns in fruits from the two cultivars. Subsequently, we identified the biological processes regulated by the differentially expressed genes (DEGs). Gene ontology (GO) analysis revealed that these DEGs were highly enriched for "single-organism cellular process" and "transferase activity". KEGG analysis demonstrated that the main pathways affected by the bud mutations were plant hormone signal transduction, starch and sucrose metabolism. The IAA, CKX, ARF, and SnRK2 genes were identified as the key regulators of plant hormone signal transduction. Meanwhile, TPP, the beta-glucosidase (EC3.2.1.21) gene, and UGT72E were identified as candidate DEGs affecting secondary metabolite synthesis. The transcriptome sequencing (RNA-seq) data were also validated using RT-qPCR experiments. The transcriptome analysis demonstrated that plant hormones play a significant role in extending the maturity period of plum fruit, with IAA, CKX, ARF, and SnRK2 serving as the key regulators of this process. Further, TPP, beta-glucosidase (EC3.2.1.21), and UGT72E appeared to mediate the synthesis of various soluble secondary metabolites, contributing to the aroma of plum fruits. The expression of BAG6 was upregulated in "B" as the fruit matured, but it was downregulated in "By". This indicated that "B" may have stronger resistance, especially fungal resistance. Supplementary Information The online version contains supplementary material available at 10.1007/s12298-024-01472-3.
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Affiliation(s)
- Huiyan Liu
- Ningxia Key Laboratory for Food Microbial-Applications Technology and Safety Control, School of Food Science and Engineering, Ningxia University, Yinchuan, 750021 Ningxia China
| | - Haitian Fang
- Ningxia Key Laboratory for Food Microbial-Applications Technology and Safety Control, School of Food Science and Engineering, Ningxia University, Yinchuan, 750021 Ningxia China
| | - Guangdi Zhang
- Ningxia Key Laboratory for Food Microbial-Applications Technology and Safety Control, School of Food Science and Engineering, Ningxia University, Yinchuan, 750021 Ningxia China
- Ningxia Facility Horticulture Engineering Technology Center, Yinchuan, 750021 Ningxia China
- Technological Innovation Center of Horticulture, Ningxia University), Ningxia Hui Autonomous Region, Yinchuan, 750021 Ningxia China
| | - Jianshe Li
- Ningxia Key Laboratory for Food Microbial-Applications Technology and Safety Control, School of Food Science and Engineering, Ningxia University, Yinchuan, 750021 Ningxia China
- Ningxia Facility Horticulture Engineering Technology Center, Yinchuan, 750021 Ningxia China
- Technological Innovation Center of Horticulture, Ningxia University), Ningxia Hui Autonomous Region, Yinchuan, 750021 Ningxia China
| | - Xiangjun Zhang
- School of Life Science, Ningxia University, Yinchuan, 750021 Ningxia China
| | - Yu Li
- Technological Innovation Center of Horticulture, Ningxia University), Ningxia Hui Autonomous Region, Yinchuan, 750021 Ningxia China
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23
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Sun N, Wang Y, Kang J, Hao H, Liu X, Yang Y, Jiang X, Gai Y. Exploring the role of the LkABCG36 transporter in lignin accumulation. PLANT SCIENCE : AN INTERNATIONAL JOURNAL OF EXPERIMENTAL PLANT BIOLOGY 2024; 343:112059. [PMID: 38458573 DOI: 10.1016/j.plantsci.2024.112059] [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: 09/21/2023] [Revised: 02/29/2024] [Accepted: 03/04/2024] [Indexed: 03/10/2024]
Abstract
Lignin is a complex biopolymer formed through the condensation of three monomeric precursors known as monolignols. However, the mechanism underlying lignin precursor transport remains elusive, with uncertainty over whether it occurs through passive diffusion or an active energized process. ATP-binding cassette 36 (ABCG36) plays important roles in abiotic stress resistance. In this study, we investigated the transport functions of LkABCG36 (Larix kaempferi) for lignin precursors and the potential effects of LkABCG36 overexpression in plants. LkABCG36 enhanced the ability of tobacco (Nicotiana tabacum) bright yellow-2 (BY-2) cells to resist monolignol alcohol stress. Furthermore, LkABCG36 overexpression promoted lignin deposition in tobacco plant stem tissue. To understand the underlying mechanism, we measured the BY-2 cell ability to export lignin monomers and the uptake of monolignol precursors in inside-out (inverted) plasma membrane vesicles. We found that the transport of coniferyl and sinapyl alcohols is an ATP-dependent process. Our data suggest that LkABCG36 contributes to lignin accumulation in tobacco stem tissues through a mechanism involving the active transport of lignin precursors to the cell wall. These findings shed light on the lignin biosynthesis process, with important implications for enhancing lignin deposition in plants, potentially leading to improved stress tolerance and biomass production.
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Affiliation(s)
- Nan Sun
- State Key Laboratory of Tree Genetics and Breeding, College of Biological Sciences and Technology, Beijing Forestry University, Beijing 100083, China
| | - Yuqian Wang
- State Key Laboratory of Tree Genetics and Breeding, College of Biological Sciences and Technology, Beijing Forestry University, Beijing 100083, China
| | - Jiaqi Kang
- State Key Laboratory of Tree Genetics and Breeding, College of Biological Sciences and Technology, Beijing Forestry University, Beijing 100083, China
| | - Haifei Hao
- State Key Laboratory of Tree Genetics and Breeding, College of Biological Sciences and Technology, Beijing Forestry University, Beijing 100083, China
| | - Xiao Liu
- State Key Laboratory of Plant Physiology and Biochemistry, College of Biological Sciences, China Agricultural University, Beijing 100193, China
| | - Yongqing Yang
- State Key Laboratory of Plant Physiology and Biochemistry, College of Biological Sciences, China Agricultural University, Beijing 100193, China
| | - Xiangning Jiang
- State Key Laboratory of Tree Genetics and Breeding, College of Biological Sciences and Technology, Beijing Forestry University, Beijing 100083, China; National Engineering Laboratory for Tree Breeding, The Tree and Ornamental Plant Breeding and Biotechnology Laboratory of Chinese Forestry Administration, Beijing 100083, China
| | - Ying Gai
- State Key Laboratory of Tree Genetics and Breeding, College of Biological Sciences and Technology, Beijing Forestry University, Beijing 100083, China; National Engineering Laboratory for Tree Breeding, The Tree and Ornamental Plant Breeding and Biotechnology Laboratory of Chinese Forestry Administration, Beijing 100083, China.
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24
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Xue B, Duan W, Gong L, Zhu D, Li X, Li X, Liang YK. The OsDIR55 gene increases salt tolerance by altering the root diffusion barrier. THE PLANT JOURNAL : FOR CELL AND MOLECULAR BIOLOGY 2024; 118:1550-1568. [PMID: 38412303 DOI: 10.1111/tpj.16696] [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: 08/20/2023] [Revised: 01/30/2024] [Accepted: 02/07/2024] [Indexed: 02/29/2024]
Abstract
The increased soil salinity is becoming a major challenge to produce more crops and feed the growing population of the world. In this study, we demonstrated that overexpression of OsDIR55 gene enhances rice salt tolerance by altering the root diffusion barrier. OsDIR55 is broadly expressed in all examined tissues and organs with the maximum expression levels at lignified regions in rice roots. Salt stress upregulates the expression of OsDIR55 gene in an abscisic acid (ABA)-dependent manner. Loss-function and overexpression of OsDIR55 compromised and improved the development of CS and root diffusion barrier, manifested with the decreased and increased width of CS, respectively, and ultimately affected the permeability of the apoplastic diffusion barrier in roots. OsDIR55 deficiency resulted in Na+ accumulation, ionic imbalance, and growth arrest, whereas overexpression of OsDIR55 enhances salinity tolerance and provides an overall benefit to plant growth and yield potential. Collectively, we propose that OsDIR55 is crucial for ions balance control and salt stress tolerance through regulating lignification-mediated root barrier modifications in rice.
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Affiliation(s)
- Baoping Xue
- State Key Laboratory of Hybrid Rice, Department of Plant Sciences, College of Life Sciences, Wuhan University, Wuhan, 430072, China
- Hubei Hongshan Laboratory, Wuhan, 430070, China
| | - Wen Duan
- State Key Laboratory of Hybrid Rice, Department of Plant Sciences, College of Life Sciences, Wuhan University, Wuhan, 430072, China
- Hubei Hongshan Laboratory, Wuhan, 430070, China
| | - Luping Gong
- State Key Laboratory of Hybrid Rice, Department of Plant Sciences, College of Life Sciences, Wuhan University, Wuhan, 430072, China
- Hubei Hongshan Laboratory, Wuhan, 430070, China
| | - Dongmei Zhu
- State Key Laboratory of Hybrid Rice, Department of Plant Sciences, College of Life Sciences, Wuhan University, Wuhan, 430072, China
- Hubei Hongshan Laboratory, Wuhan, 430070, China
| | - Xueying Li
- State Key Laboratory of Hybrid Rice, Department of Plant Sciences, College of Life Sciences, Wuhan University, Wuhan, 430072, China
- Hubei Hongshan Laboratory, Wuhan, 430070, China
| | - Xuemei Li
- State Key Laboratory of Hybrid Rice, Department of Plant Sciences, College of Life Sciences, Wuhan University, Wuhan, 430072, China
- Hubei Hongshan Laboratory, Wuhan, 430070, China
| | - Yun-Kuan Liang
- State Key Laboratory of Hybrid Rice, Department of Plant Sciences, College of Life Sciences, Wuhan University, Wuhan, 430072, China
- Hubei Hongshan Laboratory, Wuhan, 430070, China
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25
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Li JW, Zhou P, Hu ZH, Teng RM, Wang YX, Li T, Xiong AS, Li XH, Chen X, Zhuang J. CsPAT1, a GRAS transcription factor, promotes lignin accumulation by antagonistic interacting with CsWRKY13 in tea plants. THE PLANT JOURNAL : FOR CELL AND MOLECULAR BIOLOGY 2024; 118:1312-1326. [PMID: 38319894 DOI: 10.1111/tpj.16670] [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: 11/21/2023] [Revised: 01/21/2024] [Accepted: 01/27/2024] [Indexed: 02/08/2024]
Abstract
Lignin is an important component of plant cell walls and plays crucial roles in the essential agronomic traits of tea quality and tenderness. However, the molecular mechanisms underlying the regulation of lignin biosynthesis in tea plants remain unclear. CsWRKY13 acts as a negative regulator of lignin biosynthesis in tea plants. In this study, we identified a GRAS transcription factor, phytochrome A signal transduction 1 (CsPAT1), that interacts with CsWRKY13. Silencing CsPAT1 expression in tea plants and heterologous overexpression in Arabidopsis demonstrated that CsPAT1 positively regulates lignin accumulation. Further investigation revealed that CsWRKY13 directly binds to the promoters of CsPAL and CsC4H and suppresses transcription of CsPAL and CsC4H. CsPAT1 indirectly affects the promoter activities of CsPAL and CsC4H by interacting with CsWRKY13, thereby facilitating lignin biosynthesis in tea plants. Compared with the expression of CsWRKY13 alone, the co-expression of CsPAT1 and CsWRKY13 in Oryza sativa significantly increased lignin biosynthesis. Conversely, compared with the expression of CsPAT1 alone, the co-expression of CsPAT1 and CsWRKY13 in O. sativa significantly reduced lignin accumulation. These results demonstrated the antagonistic regulation of the lignin biosynthesis pathway by CsPAT1 and CsWRKY13. These findings improve our understanding of lignin biosynthesis mechanisms in tea plants and provide insights into the role of the GRAS transcription factor family in lignin accumulation.
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Affiliation(s)
- Jing-Wen Li
- Tea Science Research Institute, College of Horticulture, Nanjing Agricultural University, Nanjing, China
| | - Ping Zhou
- Tea Science Research Institute, College of Horticulture, Nanjing Agricultural University, Nanjing, China
| | - Zhi-Hang Hu
- Tea Science Research Institute, College of Horticulture, Nanjing Agricultural University, Nanjing, China
| | - Rui-Min Teng
- Tea Science Research Institute, College of Horticulture, Nanjing Agricultural University, Nanjing, China
| | - Yong-Xin Wang
- Tea Science Research Institute, College of Horticulture, Nanjing Agricultural University, Nanjing, China
| | - Tong Li
- State Key Laboratory of Crop Genetics & Germplasm Enhancement and Utilization, Nanjing Agricultural University, Nanjing, China
| | - Ai-Sheng Xiong
- State Key Laboratory of Crop Genetics & Germplasm Enhancement and Utilization, Nanjing Agricultural University, Nanjing, China
| | - Xing-Hui Li
- Tea Science Research Institute, College of Horticulture, Nanjing Agricultural University, Nanjing, China
| | - Xuan Chen
- Tea Science Research Institute, College of Horticulture, Nanjing Agricultural University, Nanjing, China
| | - Jing Zhuang
- Tea Science Research Institute, College of Horticulture, Nanjing Agricultural University, Nanjing, China
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26
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Zhou X, Cao J, Liu XM, Wang LN, Zhang WW, Ye JB, Xu F, Cheng S. Cloning and functional analysis of Gb4CL1 and Gb4CL2 from Ginkgo biloba. THE PLANT GENOME 2024; 17:e20440. [PMID: 38462710 DOI: 10.1002/tpg2.20440] [Citation(s) in RCA: 0] [Impact Index Per Article: 0] [Reference Citation Analysis] [Abstract] [MESH Headings] [Grants] [Track Full Text] [Subscribe] [Scholar Register] [Received: 11/23/2023] [Revised: 01/31/2024] [Accepted: 02/04/2024] [Indexed: 03/12/2024]
Abstract
4-Coumarate-CoA ligase (4CL) gene plays vital roles in plant growth and development, especially the regulation of lignin metabolism and flavonoid synthesis. To investigate the potential function of 4CL in the lignin biosynthesis of Ginkgo biloba, this study identified two 4CL genes, Gb4CL1 and Gb4CL2, from G. biloba genome. Based on the phylogenetic tree analysis, Gb4CL1 and Gb4CL2 protein were classified into Class I, which has been confirmed to be involved in lignin biosynthesis. Therefore, it can be inferred that these two genes may also participate in lignin metabolism. The tissue-specific expression patterns of these two genes revealed that Gb4CL1 was highly expressed in microstrobilus, whereas Gb4CL2 was abundant in immature leaves. The onion transient expression assay indicated that Gb4CL1 was predominantly localized in the nucleus, indicating its potential involvement in nuclear functions, while Gb4CL2 was observed in the cell wall, suggesting its role in cell wall-related processes. Phytohormone response analysis revealed that the expression of both genes was upregulated in response to indole acetic acid, while methyl jasmonate suppressed it, gibberellin exhibited opposite effects on these genes. Furthermore, Gb4CL1 and Gb4CL2 expressed in all tissues containing lignin that showed a positive correlation with lignin content. Thus, these findings suggest that Gb4CL1 and Gb4CL2 are likely involved in lignin biosynthesis. Gb4CL1 and Gb4CL2 target proteins were successfully induced in Escherichia coli BL21 with molecular weights of 85.5 and 89.2 kDa, proving the integrity of target proteins. Our findings provided a basis for revealing that Gb4CL participated in lignin synthesis in G. biloba.
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Affiliation(s)
- Xian Zhou
- College of Horticulture and Gardening, Yangtze University, Jingzhou, China
| | - Jie Cao
- College of Horticulture and Gardening, Yangtze University, Jingzhou, China
| | - Xiao-Meng Liu
- School of Modern Industry for Selenium Science and Engineering, National R&D Center for Se-rich Agricultural Products Processing Technology, Wuhan Polytechnic University, Wuhan, China
| | - Li-Na Wang
- College of Horticulture and Gardening, Yangtze University, Jingzhou, China
| | - Wei-Wei Zhang
- College of Horticulture and Gardening, Yangtze University, Jingzhou, China
| | - Jia-Bao Ye
- College of Horticulture and Gardening, Yangtze University, Jingzhou, China
| | - Feng Xu
- College of Horticulture and Gardening, Yangtze University, Jingzhou, China
| | - Shuiyuan Cheng
- School of Modern Industry for Selenium Science and Engineering, National R&D Center for Se-rich Agricultural Products Processing Technology, Wuhan Polytechnic University, Wuhan, China
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27
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Peng J, Lei L, Hou Y, Chen S. Study on cultivation of aerobic granular sludge and its application in degrading lignin models in the sequencing batch biofilter granular reactor. WATER SCIENCE AND TECHNOLOGY : A JOURNAL OF THE INTERNATIONAL ASSOCIATION ON WATER POLLUTION RESEARCH 2024; 89:2907-2920. [PMID: 38877621 DOI: 10.2166/wst.2024.161] [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: 12/22/2023] [Accepted: 05/07/2024] [Indexed: 06/16/2024]
Abstract
In this study, three sequencing batch biofilter granular reactors (SBBGRs) were employed to treat model lignin wastewater containing different lignin models (2,6-dimethoxyphenol, 4-methoxyphenol, and vanillin). After 40 days of cultivation, uniform-shaped aerobic granular sludge (AGS) was successfully developed through nutrient supplementation with synthetic wastewater. During the acclimation stage, the chemical oxygen demand (COD) reduction efficiencies of the three reactors showed a trend of initial decreasing (5-20%) and then recovering to a high reduction efficiency (exceeding 90%) in a short period of time. During the stable operation stage, all three reactors achieved COD reduction efficiencies exceeding 90%. These findings indicated the cultivated AGS's robust resistance to changes in lignin models in water. UV-Vis spectra analysis confirmed the effective degradation of the three lignin models. Microbiological analysis showed that Proteobacteria and Bacteroidetes were always the dominant phyla. At the genus level, while Acinetobacter (15.46%) dominated in the inoculation sludge, Kapabacteriales (7.93%), SBR1031 (11.77%), and Chlorobium (25.37%) were dominant in the three reactors (for 2,6-dimethoxyphenol, 4-methoxyphenol, and vanillin) after degradation, respectively. These findings demonstrate that AGS cultured with SBBGR effectively degrades lignin models, with different dominant strains observed for various lignin models.
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Affiliation(s)
- Jingran Peng
- College of Light Industry Science and Engineering, State Key Laboratory of Pulp and Paper Engineering, South China University of Technology, Guangzhou 510640, China
| | - Lirong Lei
- College of Light Industry Science and Engineering, State Key Laboratory of Pulp and Paper Engineering, South China University of Technology, Guangzhou 510640, China E-mail:
| | - Yi Hou
- College of Light Industry Science and Engineering, State Key Laboratory of Pulp and Paper Engineering, South China University of Technology, Guangzhou 510640, China
| | - Shuangshuang Chen
- College of Light Industry Science and Engineering, State Key Laboratory of Pulp and Paper Engineering, South China University of Technology, Guangzhou 510640, China
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28
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Wang H, Wei X, Mo C, Wei M, Li Y, Fan Y, Gu X, Zhang X, Zhang Y, Kong Q. Integrated full-length transcriptome and metabolome analysis reveals the defence response of melon to gummy stem blight. PLANT, CELL & ENVIRONMENT 2024; 47:1997-2010. [PMID: 38379450 DOI: 10.1111/pce.14865] [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: 12/01/2023] [Revised: 01/30/2024] [Accepted: 02/12/2024] [Indexed: 02/22/2024]
Abstract
Gummy stem blight (GSB), a widespread disease causing great loss to cucurbit production, has become a major threat to melon cultivation. However, the melon-GSB interaction remains largely unknown. Here, full-length transcriptome and widely targeted metabolome were used to investigate the defence responses of resistant (PI511089) and susceptible (Payzawat) melon accessions to GSB pathogen infection at 24 h. The biosynthesis of secondary metabolites and MAPK signalling pathway were specifically enriched for differentially expressed genes in PI511890, while carbohydrate metabolism and amino acid metabolism were specifically enriched in Payzawat. More than 1000 novel genes were identified and MAPK signalling pathway was specifically enriched for them in PI511890. There were 11 793 alternative splicing events involving in the defence response to GSB. Totally, 910 metabolites were identified in Payzawat and PI511890, and flavonoids were the dominant metabolites. Integrated full-length transcriptome and metabolome analysis showed eriodictyol and oxalic acid were the potential marker metabolites for GSB resistance in melon. Moreover, posttranscription regulation was widely involved in the defence response of melon to GSB pathogen infection. These results not only improve our understanding on the interaction between melon and GSB, but also facilitate the genetic improvement of melon with GSB resistance.
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Affiliation(s)
- Haiyan Wang
- National Key Laboratory for Germplasm Innovation & Utilization of Horticultural Crops, College of Horticulture and Forestry Sciences, Huazhong Agricultural University, Wuhan, China
| | - Xiaoying Wei
- National Key Laboratory for Germplasm Innovation & Utilization of Horticultural Crops, College of Horticulture and Forestry Sciences, Huazhong Agricultural University, Wuhan, China
| | - Changjuan Mo
- National Key Laboratory for Germplasm Innovation & Utilization of Horticultural Crops, College of Horticulture and Forestry Sciences, Huazhong Agricultural University, Wuhan, China
| | - Minghua Wei
- National Key Laboratory for Germplasm Innovation & Utilization of Horticultural Crops, College of Horticulture and Forestry Sciences, Huazhong Agricultural University, Wuhan, China
| | - Yaqiong Li
- National Key Laboratory for Germplasm Innovation & Utilization of Horticultural Crops, College of Horticulture and Forestry Sciences, Huazhong Agricultural University, Wuhan, China
| | - Yuxin Fan
- National Key Laboratory for Germplasm Innovation & Utilization of Horticultural Crops, College of Horticulture and Forestry Sciences, Huazhong Agricultural University, Wuhan, China
| | - Xiaojing Gu
- National Key Laboratory for Germplasm Innovation & Utilization of Horticultural Crops, College of Horticulture and Forestry Sciences, Huazhong Agricultural University, Wuhan, China
| | - Xuejun Zhang
- Hami-Melon Research Center, Xinjiang Academy of Agricultural Sciences, Urumqi, China
| | - Yongbing Zhang
- Hami-Melon Research Center, Xinjiang Academy of Agricultural Sciences, Urumqi, China
| | - Qiusheng Kong
- National Key Laboratory for Germplasm Innovation & Utilization of Horticultural Crops, College of Horticulture and Forestry Sciences, Huazhong Agricultural University, Wuhan, China
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Wang D, Coleman HD. The transcriptional regulation of a putative hemicellulose gene, PtrPARVUS2 in poplar. Sci Rep 2024; 14:12592. [PMID: 38824196 PMCID: PMC11144201 DOI: 10.1038/s41598-024-63408-x] [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: 03/28/2024] [Accepted: 05/28/2024] [Indexed: 06/03/2024] Open
Abstract
The plant cell wall serves as a critical interface between the plant and its environment, offering protection against various stresses and contributing to biomass production. Hemicellulose is one of the major components of the cell wall, and understanding the transcriptional regulation of its production is essential to fully understanding cell wall formation. This study explores the regulatory mechanisms underlying one of the genes involved in hemicellulose biosynthesis, PtrPARVUS2. Six transcription factors (TFs) were identified from a xylem-biased library to negatively regulate PtrPARVUS2 expression. These TFs, belonging to diverse TF families, were confirmed to bind to specific cis-elements in the PtrPARVUS2 promoter region, as validated by Yeast One-Hybrid (Y1H) assays, transient expression analysis, and Chromatin Immunoprecipitation sequencing (ChIP-seq) assays. Furthermore, motif analysis identified putative cis-regulatory elements bound by these TFs, shedding light on the transcriptional regulation of SCW biosynthesis genes. Notably, several TFs targeted genes encoding uridine diphosphate glycosyltransferases (UGTs), crucial enzymes involved in hemicellulose glycosylation. Phylogenetic analysis of UGTs regulated by these TFs highlighted their diverse roles in modulating hemicellulose synthesis. Overall, this study identifies a set of TFs that regulate PARVUS2 in poplar, providing insights into the intricate coordination of TFs and PtrPARVUS2 in SCW formation. Understanding these regulatory mechanisms enhances our ability to engineer plant biomass for tailored applications, including biofuel production and bioproduct development.
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Affiliation(s)
- Dan Wang
- Department of Biology, Syracuse University, Syracuse, NY, 13244, USA
| | - Heather D Coleman
- Department of Biology, Syracuse University, Syracuse, NY, 13244, USA.
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Yu L, An Z, Xie D, Yin D, Xie G, Gao X, Xiao Y, Liu J, Fang Z. From waste to protein: a new strategy of converting composted distilled grain wastes into animal feed. Front Microbiol 2024; 15:1405564. [PMID: 38881654 PMCID: PMC11176434 DOI: 10.3389/fmicb.2024.1405564] [Citation(s) in RCA: 0] [Impact Index Per Article: 0] [Reference Citation Analysis] [Abstract] [Key Words] [Track Full Text] [Figures] [Journal Information] [Subscribe] [Scholar Register] [Received: 03/23/2024] [Accepted: 05/16/2024] [Indexed: 06/18/2024] Open
Abstract
Distilled grain waste (DGW) is rich in nutrients and can be a potential resource as animal feed. However, DGW contains as much as 14% lignin, dramatically reducing the feeding value. White-rot fungi such as Pleurotus ostreatus could preferentially degrade lignin with high efficiency. However, lignin derivatives generated during alcohol distillation inhibit P. ostreatus growth. Thus, finding a new strategy to adjust the DGW properties to facilitate P. ostreatus growth is critical for animal feed preparation and DGW recycling. In this study, three dominant indigenous bacteria, including Sphingobacterium thermophilum X1, Pseudoxanthomonas byssovorax X3, and Bacillus velezensis 15F were chosen to generate single and compound microbial inoculums for DGW composting to prepare substrates for P. ostreatus growth. Compared with non-inoculated control or single microbial inoculation, all composite inoculations, especially the three-microbial compound, led to faster organic metabolism, shorter composting process, and improved physicochemical properties of DGW. P. ostreatus growth assays showed the fastest mycelial colonization (20.43 μg·g-1 ergosterol) and extension (9 mm/d), the highest ligninolytic enzyme activities (Lac, 152.68 U·g-1; Lip, 15.56 U·g-1; MnP, 0.34 U·g-1; Xylanase, 10.98 U·g-1; FPase, 0.71 U·g-1), and the highest lignin degradation ratio (30.77%) in the DGW sample after 12 h of composting with the three-microbial compound inoculation when compared to other groups. This sample was relatively abundant in bacteria playing critical roles in amino acid, carbohydrate, energy metabolism, and xenobiotic biodegradation, as suggested by metagenomic analysis. The feed value analysis revealed that P. ostreatus mycelia full colonization in composted DGW led to high fiber content retention and decreased lignin content (final ratio of 5% lignin) but elevated protein concentrations (about 130 g·kg-1 DM). An additional daily weight gain of 0.4 kg/d was shown in cattle feeding experiments by replacing 60% of regular feed with it. These findings demonstrate that compound inoculant consisting of three indigenous microorganisms is efficient to compost DGW and facilitate P. ostreatus growth. P. ostreatus decreased the lignin content of composted DGW during its mycelial growth, improving the quality of DGW for feeding cattle.
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Affiliation(s)
- Lei Yu
- School of Life Sciences, Anhui University, Hefei, China
- Anhui Key Laboratory of Modern Biomanufacturing, Hefei, China
- Anhui Provincial Engineering Technology Research Center of Microorganisms and Biocatalysis, Hefei, China
| | - Zichao An
- School of Life Sciences, Anhui University, Hefei, China
- Anhui Key Laboratory of Modern Biomanufacturing, Hefei, China
- Anhui Provincial Engineering Technology Research Center of Microorganisms and Biocatalysis, Hefei, China
| | - Dengdeng Xie
- School of Life Sciences, Anhui University, Hefei, China
- Anhui Key Laboratory of Modern Biomanufacturing, Hefei, China
- Anhui Provincial Engineering Technology Research Center of Microorganisms and Biocatalysis, Hefei, China
| | - Diao Yin
- School of Life Sciences, Anhui University, Hefei, China
- Anhui Key Laboratory of Modern Biomanufacturing, Hefei, China
- Anhui Provincial Engineering Technology Research Center of Microorganisms and Biocatalysis, Hefei, China
| | - Guopai Xie
- Anhui Golden Seed Winery Co., Ltd., Fuyang, China
| | - Xuezhi Gao
- Anhui Golden Seed Winery Co., Ltd., Fuyang, China
| | - Yazhong Xiao
- School of Life Sciences, Anhui University, Hefei, China
- Anhui Key Laboratory of Modern Biomanufacturing, Hefei, China
- Anhui Provincial Engineering Technology Research Center of Microorganisms and Biocatalysis, Hefei, China
| | - Juanjuan Liu
- School of Life Sciences, Anhui University, Hefei, China
- Anhui Key Laboratory of Modern Biomanufacturing, Hefei, China
- Anhui Provincial Engineering Technology Research Center of Microorganisms and Biocatalysis, Hefei, China
| | - Zemin Fang
- School of Life Sciences, Anhui University, Hefei, China
- Anhui Key Laboratory of Modern Biomanufacturing, Hefei, China
- Anhui Provincial Engineering Technology Research Center of Microorganisms and Biocatalysis, Hefei, China
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Shi H, Zhu Y, Wu X, Jiang T, Li X, Liu J, Di Y, Chen F, Gao J, Xu X, Xiao N, Feng X, Zhang P, Wu Y, La Q, Li A, Chen P, Li X. CropMetabolome: a comprehensive metabolome database for major crops cross eight categories. THE PLANT JOURNAL : FOR CELL AND MOLECULAR BIOLOGY 2024. [PMID: 38818975 DOI: 10.1111/tpj.16858] [Citation(s) in RCA: 0] [Impact Index Per Article: 0] [Reference Citation Analysis] [Abstract] [Key Words] [Grants] [Track Full Text] [Subscribe] [Scholar Register] [Received: 10/11/2023] [Revised: 05/03/2024] [Accepted: 05/20/2024] [Indexed: 06/01/2024]
Abstract
Chemical compositions of crops are of great agronomical importance, as crops serve as resources for nutrition, energy, and medicines for human and livestock. For crop metabolomics research, the lack of crop reference metabolome and high-quality reference compound mass spectra, as well as utilities for metabolic profiling, has hindered the discovery and functional study of phytochemicals in crops. To meet these challenging needs, we have developed the Crop Metabolome database (abbreviated as CropMetabolome) that is dedicated to the construction of crop reference metabolome, repository, and dissemination of crop metabolomic data, and profiling and analytic tools for metabolomics research. CropMetabolome contains a metabolomics database for more than 50 crops (belonging to eight categories) that integrated self-generated raw mass spectral data and public-source datasets. The reference metabolome for 59 crop species was constructed, which have functions that parallel those of reference genome in genomic studies. CropMetabolome also contains 'Standard compound mass spectral library', 'Flavonoids library', 'Pesticide library', and a set of related analytical tools that enable metabolic profiling based on a reference metabolome (CropRefMetaBlast), annotation and identification of new metabolites (CompoundLibBlast), deducing the structure of novel flavonoid derivatives (FlavoDiscover), and detecting possible residual pesticides in crop samples (PesticiDiscover). In addition, CropMetabolome is a repository to share and disseminate metabolomics data and a platform to promote collaborations to develop reference metabolome for more crop species. CropMetabolome is a comprehensive platform that offers important functions in crop metabolomics research and contributes to improve crop breeding, nutrition, and safety. CropMetabolome is freely available at https://www.cropmetabolome.com/.
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Affiliation(s)
- Han Shi
- Key Laboratory of Synthetic Biology, Key Laboratory of Plant Design, CAS Center for Excellence in Molecular Plant Sciences, Institute of Plant Physiology and Ecology, Chinese Academy of Sciences, Shanghai, 200032, China
- University of Chinese Academy of Sciences, Beijing, 100049, China
| | - Yan Zhu
- Key Laboratory of Synthetic Biology, Key Laboratory of Plant Design, CAS Center for Excellence in Molecular Plant Sciences, Institute of Plant Physiology and Ecology, Chinese Academy of Sciences, Shanghai, 200032, China
| | - Xueting Wu
- Key Laboratory of Synthetic Biology, Key Laboratory of Plant Design, CAS Center for Excellence in Molecular Plant Sciences, Institute of Plant Physiology and Ecology, Chinese Academy of Sciences, Shanghai, 200032, China
| | - Tao Jiang
- Key Laboratory of Synthetic Biology, Key Laboratory of Plant Design, CAS Center for Excellence in Molecular Plant Sciences, Institute of Plant Physiology and Ecology, Chinese Academy of Sciences, Shanghai, 200032, China
| | - Xuetong Li
- Key Laboratory of Synthetic Biology, Key Laboratory of Plant Design, CAS Center for Excellence in Molecular Plant Sciences, Institute of Plant Physiology and Ecology, Chinese Academy of Sciences, Shanghai, 200032, China
| | - Jianju Liu
- Institute of Agricultural Sciences for Lixiahe Region in Jiangsu, Yangzhou, 225007, China
| | - Ye Di
- Key Laboratory of Synthetic Biology, Key Laboratory of Plant Design, CAS Center for Excellence in Molecular Plant Sciences, Institute of Plant Physiology and Ecology, Chinese Academy of Sciences, Shanghai, 200032, China
| | - Feng Chen
- Agronomy College, Henan Agricultural University, Zhengzhou, 450046, China
| | - Jinshan Gao
- Key Laboratory of Soybean Molecular Design Breeding, Northeast Institute of Geography and Agroecology, Chinese Academy of Sciences, Changchun, 130102, China
| | - Xiaoyan Xu
- Core Facility Center, Center for Excellence in Molecular Plant Sciences, Institute of Plant Physiology and Ecology, Chinese Academy of Sciences, Shanghai, 200032, China
| | - Ning Xiao
- Institute of Agricultural Sciences for Lixiahe Region in Jiangsu, Yangzhou, 225007, China
| | - Xianzhong Feng
- Key Laboratory of Soybean Molecular Design Breeding, Northeast Institute of Geography and Agroecology, Chinese Academy of Sciences, Changchun, 130102, China
| | - Peng Zhang
- National Key Laboratory of Plant Molecular Genetics, Center for Excellence in Molecular Plant Sciences, Institute of Plant Physiology and Ecology, Chinese Academy of Sciences, Shanghai, 200032, China
| | - Yongrui Wu
- National Key Laboratory of Plant Molecular Genetics, Center for Excellence in Molecular Plant Sciences, Institute of Plant Physiology and Ecology, Chinese Academy of Sciences, Shanghai, 200032, China
| | - Qiong La
- Department of Life Science, Research Institute of Biodiversity and Geobiology, Tibet University, Lhasa, 850000, China
| | - Aihong Li
- Institute of Agricultural Sciences for Lixiahe Region in Jiangsu, Yangzhou, 225007, China
| | - Ping Chen
- Key Laboratory of Synthetic Biology, Key Laboratory of Plant Design, CAS Center for Excellence in Molecular Plant Sciences, Institute of Plant Physiology and Ecology, Chinese Academy of Sciences, Shanghai, 200032, China
| | - Xuan Li
- Key Laboratory of Synthetic Biology, Key Laboratory of Plant Design, CAS Center for Excellence in Molecular Plant Sciences, Institute of Plant Physiology and Ecology, Chinese Academy of Sciences, Shanghai, 200032, China
- University of Chinese Academy of Sciences, Beijing, 100049, China
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Saadaoui M, Faize M, Rifai A, Tayeb K, Omri Ben Youssef N, Kharrat M, Roeckel-Drevet P, Chaar H, Venisse JS. Evaluation of Tunisian wheat endophytes as plant growth promoting bacteria and biological control agents against Fusarium culmorum. PLoS One 2024; 19:e0300791. [PMID: 38758965 PMCID: PMC11101125 DOI: 10.1371/journal.pone.0300791] [Citation(s) in RCA: 0] [Impact Index Per Article: 0] [Reference Citation Analysis] [Abstract] [MESH Headings] [Grants] [Track Full Text] [Journal Information] [Subscribe] [Scholar Register] [Received: 10/27/2023] [Accepted: 03/05/2024] [Indexed: 05/19/2024] Open
Abstract
Plant growth-promoting rhizobacteria (PGPR) applications have emerged as an ideal substitute for synthetic chemicals by their ability to improve plant nutrition and resistance against pathogens. In this study, we isolated fourteen root endophytes from healthy wheat roots cultivated in Tunisia. The isolates were identified based from their 16S rRNA gene sequences. They belonged to Bacillota and Pseudomonadota taxa. Fourteen strains were tested for their growth-promoting and defense-eliciting potentials on durum wheat under greenhouse conditions, and for their in vitro biocontrol power against Fusarium culmorum, an ascomycete responsible for seedling blight, foot and root rot, and head blight diseases of wheat. We found that all the strains improved shoot and/or root biomass accumulation, with Bacillus mojavensis, Paenibacillus peoriae and Variovorax paradoxus showing the strongest promoting effects. These physiological effects were correlated with the plant growth-promoting traits of the bacterial endophytes, which produced indole-related compounds, ammonia, and hydrogen cyanide (HCN), and solubilized phosphate and zinc. Likewise, plant defense accumulations were modulated lastingly and systematically in roots and leaves by all the strains. Testing in vitro antagonism against F. culmorum revealed an inhibition activity exceeding 40% for five strains: Bacillus cereus, Paenibacillus peoriae, Paenibacillus polymyxa, Pantoae agglomerans, and Pseudomonas aeruginosa. These strains exhibited significant inhibitory effects on F. culmorum mycelia growth, sporulation, and/or macroconidia germination. P. peoriae performed best, with total inhibition of sporulation and macroconidia germination. These finding highlight the effectiveness of root bacterial endophytes in promoting plant growth and resistance, and in controlling phytopathogens such as F. culmorum. This is the first report identifying 14 bacterial candidates as potential agents for the control of F. culmorum, of which Paenibacillus peoriae and/or its intracellular metabolites have potential for development as biopesticides.
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Affiliation(s)
- Mouadh Saadaoui
- Université Clermont Auvergne, INRAE, PIAF, Clermont-Ferrand, France
- Université de Tunis El Manar, Campus Universitaire Farhat Hached, Tunis, Tunisia
- Field Crops Laboratory, National Institute for Agricultural Research of Tunisia, Tunisia, Tunisia
| | - Mohamed Faize
- Laboratory of Plant Biotechnology, Ecology and Ecosystem Valorization CNRST-URL10, Faculty of Sciences, University Chouaib Doukkali, El Jadida, Morocco
| | - Aicha Rifai
- Laboratory of Plant Biotechnology, Ecology and Ecosystem Valorization CNRST-URL10, Faculty of Sciences, University Chouaib Doukkali, El Jadida, Morocco
| | - Koussa Tayeb
- Laboratory of Plant Biotechnology, Ecology and Ecosystem Valorization CNRST-URL10, Faculty of Sciences, University Chouaib Doukkali, El Jadida, Morocco
| | - Noura Omri Ben Youssef
- Field Crops Laboratory, National Institute for Agricultural Research of Tunisia, Tunisia, Tunisia
- National Institute of Agronomy of Tunisia, Tunis, Tunisia
| | - Mohamed Kharrat
- Field Crops Laboratory, National Institute for Agricultural Research of Tunisia, Tunisia, Tunisia
| | | | - Hatem Chaar
- Field Crops Laboratory, National Institute for Agricultural Research of Tunisia, Tunisia, Tunisia
- National Institute of Agronomy of Tunisia, Tunis, Tunisia
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Zhang P, Yang C, Wang J, Jiang P, Qi J, Hou W, Cheng H, Feng X, Yu D. Cytochrome GmGLY1 is Involved in the Biosynthesis of Glycitein in Soybean. JOURNAL OF AGRICULTURAL AND FOOD CHEMISTRY 2024; 72:10944-10957. [PMID: 38710505 DOI: 10.1021/acs.jafc.4c00968] [Citation(s) in RCA: 0] [Impact Index Per Article: 0] [Reference Citation Analysis] [Abstract] [Key Words] [MESH Headings] [Track Full Text] [Subscribe] [Scholar Register] [Indexed: 05/08/2024]
Abstract
Isoflavones, the major secondary metabolites of interest due to their benefits to both human and plant health, are exclusively produced by legumes. In this study, we profiled the isoflavone content in dry seeds from 211 soybean [Glycine max (L.) Merr.] accessions grown across five environments. Broad and discernible phenotypic variations were observed among accessions, regions, and years of growth. Twenty-six single-nucleotide polymorphisms (SNPs) associated with the sum of glycitein (GLE), glycitin (GL), 6″-O-acetylglycitin (AGL), and 6″-O-malonylglycitin (MGL) contents were detected in multiple environments via a genome-wide association study (GWAS). These SNPs were located on chromosome 11 (8,148,438 bp to 8,296,956 bp, renamed qGly11-01). Glyma.11g108300 (GmGLY1), a gene that encodes a P450 family protein, was identified via sequence variation analysis, functional annotation, weighted gene coexpression network analysis (WGCNA), and expression profile analysis of candidate gene, and hairy roots transformation in soybean. Overexpression of GmGLY1 increased the glycitein content (GLC) in soybean hairy roots and transgenic seeds, while CRISPR/Cas9-generated mutants exhibited decreased GLC and increased daidzein content (DAC). Haplotype analysis revealed that GmGLY1 allelic variations significantly affect the GLC accumulation. These findings enhance our understanding of genes influencing GLC in soybean and may guide breeding for lines with high and stable GLC.
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Affiliation(s)
- Peipei Zhang
- National Center for Soybean Improvement, National Key Laboratory of Crop Genetics and Germplasm Enhancement, Jiangsu Collaborative Innovation Center for Modern Crop Production, Nanjing Agricultural University, Nanjing 210095, China
- Zhejiang Lab, Hangzhou 311121, China
| | - Changyun Yang
- National Center for Soybean Improvement, National Key Laboratory of Crop Genetics and Germplasm Enhancement, Jiangsu Collaborative Innovation Center for Modern Crop Production, Nanjing Agricultural University, Nanjing 210095, China
| | - Jiao Wang
- National Center for Soybean Improvement, National Key Laboratory of Crop Genetics and Germplasm Enhancement, Jiangsu Collaborative Innovation Center for Modern Crop Production, Nanjing Agricultural University, Nanjing 210095, China
| | - Pingbo Jiang
- National Center for Soybean Improvement, National Key Laboratory of Crop Genetics and Germplasm Enhancement, Jiangsu Collaborative Innovation Center for Modern Crop Production, Nanjing Agricultural University, Nanjing 210095, China
| | - Jie Qi
- National Center for Soybean Improvement, National Key Laboratory of Crop Genetics and Germplasm Enhancement, Jiangsu Collaborative Innovation Center for Modern Crop Production, Nanjing Agricultural University, Nanjing 210095, China
| | - Wenyan Hou
- National Center for Soybean Improvement, National Key Laboratory of Crop Genetics and Germplasm Enhancement, Jiangsu Collaborative Innovation Center for Modern Crop Production, Nanjing Agricultural University, Nanjing 210095, China
| | - Hao Cheng
- National Center for Soybean Improvement, National Key Laboratory of Crop Genetics and Germplasm Enhancement, Jiangsu Collaborative Innovation Center for Modern Crop Production, Nanjing Agricultural University, Nanjing 210095, China
| | | | - Deyue Yu
- National Center for Soybean Improvement, National Key Laboratory of Crop Genetics and Germplasm Enhancement, Jiangsu Collaborative Innovation Center for Modern Crop Production, Nanjing Agricultural University, Nanjing 210095, China
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Wang Y, Wang M, Yan X, Chen K, Tian F, Yang X, Cao L, Ruan N, Dang Z, Yin X, Huang Y, Li F, Xu Q. The DEP1 Mutation Improves Stem Lodging Resistance and Biomass Saccharification by Affecting Cell Wall Biosynthesis in Rice. RICE (NEW YORK, N.Y.) 2024; 17:35. [PMID: 38748282 PMCID: PMC11096150 DOI: 10.1186/s12284-024-00712-0] [Citation(s) in RCA: 0] [Impact Index Per Article: 0] [Reference Citation Analysis] [Abstract] [Key Words] [Track Full Text] [Subscribe] [Scholar Register] [Received: 04/03/2024] [Accepted: 05/07/2024] [Indexed: 05/18/2024]
Abstract
BACKGROUND Plant cell walls have evolved precise plasticity in response to environmental stimuli. The plant heterotrimeric G protein complexes could sense and transmit extracellular signals to intracellular signaling systems, and activate a series of downstream responses. dep1 (Dense and Erect Panicles 1), the gain-of-function mutation of DEP1 encoding a G protein γ subunit, confers rice multiple improved agronomic traits. However, the effects of DEP1 on cell wall biosynthesis and wall-related agronomic traits remain largely unknown. RESULTS In this study, we showed that the DEP1 mutation affects cell wall biosynthesis, leading to improved lodging resistance and biomass saccharification. The DEP1 is ubiquitously expressed with a relatively higher expression level in tissues rich in cell walls. The CRISPR/Cas9 editing mutants of DEP1 (dep1-cs) displayed a significant enhancement in stem mechanical properties relative to the wild-type, leading to a substantial improvement in lodging resistance. Cell wall analyses showed that the DEP1 mutation increased the contents of cellulose, hemicelluloses, and pectin, and reduced lignin content and cellulose crystallinity (CrI). Additionally, the dep1-cs seedlings exhibited higher sensitivity to cellulose biosynthesis inhibitors, 2,6-Dichlorobenzonitrile (DCB) and isoxaben, compared with the wild-type, confirming the role of DEP1 in cellulose deposition. Moreover, the DEP1 mutation-mediated alterations of cell walls lead to increased enzymatic saccharification of biomass after the alkali pretreatment. Furthermore, the comparative transcriptome analysis revealed that the DEP1 mutation substantially altered expression of genes involved in carbohydrate metabolism, and cell wall biosynthesis. CONCLUSIONS Our findings revealed the roles of DEP1 in cell wall biosynthesis, lodging resistance, and biomass saccharification in rice and suggested genetic modification of DEP1 as a potential strategy to develop energy rice varieties with high lodging resistance.
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Affiliation(s)
- Ye Wang
- Key Laboratory of Crop Physiology, Ecology, Genetics and Breeding, Ministry of Agriculture, Shenyang Agricultural University, Shenyang, China
| | - Meihan Wang
- Key Laboratory of Crop Physiology, Ecology, Genetics and Breeding, Ministry of Agriculture, Shenyang Agricultural University, Shenyang, China
| | - Xia Yan
- Key Laboratory of Crop Physiology, Ecology, Genetics and Breeding, Ministry of Agriculture, Shenyang Agricultural University, Shenyang, China
| | - Kaixuan Chen
- Key Laboratory of Crop Physiology, Ecology, Genetics and Breeding, Ministry of Agriculture, Shenyang Agricultural University, Shenyang, China
| | - Fuhao Tian
- Key Laboratory of Crop Physiology, Ecology, Genetics and Breeding, Ministry of Agriculture, Shenyang Agricultural University, Shenyang, China
| | - Xiao Yang
- Key Laboratory of Crop Physiology, Ecology, Genetics and Breeding, Ministry of Agriculture, Shenyang Agricultural University, Shenyang, China
| | - Liyu Cao
- Key Laboratory of Crop Physiology, Ecology, Genetics and Breeding, Ministry of Agriculture, Shenyang Agricultural University, Shenyang, China
| | - Nan Ruan
- Key Laboratory of Crop Physiology, Ecology, Genetics and Breeding, Ministry of Agriculture, Shenyang Agricultural University, Shenyang, China
| | - Zhengjun Dang
- Key Laboratory of Crop Physiology, Ecology, Genetics and Breeding, Ministry of Agriculture, Shenyang Agricultural University, Shenyang, China
| | - Xuelin Yin
- Key Laboratory of Crop Physiology, Ecology, Genetics and Breeding, Ministry of Agriculture, Shenyang Agricultural University, Shenyang, China
| | - Yuwei Huang
- Key Laboratory of Crop Physiology, Ecology, Genetics and Breeding, Ministry of Agriculture, Shenyang Agricultural University, Shenyang, China
| | - Fengcheng Li
- Key Laboratory of Crop Physiology, Ecology, Genetics and Breeding, Ministry of Agriculture, Shenyang Agricultural University, Shenyang, China.
| | - Quan Xu
- Key Laboratory of Crop Physiology, Ecology, Genetics and Breeding, Ministry of Agriculture, Shenyang Agricultural University, Shenyang, China.
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Zheng S, Liu C, Zhou Z, Xu L, Lai Z. Physiological and Transcriptome Analyses Reveal the Protective Effect of Exogenous Trehalose in Response to Heat Stress in Tea Plant ( Camellia sinensis). PLANTS (BASEL, SWITZERLAND) 2024; 13:1339. [PMID: 38794411 PMCID: PMC11125205 DOI: 10.3390/plants13101339] [Citation(s) in RCA: 0] [Impact Index Per Article: 0] [Reference Citation Analysis] [Abstract] [Key Words] [Grants] [Track Full Text] [Subscribe] [Scholar Register] [Received: 03/11/2024] [Revised: 04/28/2024] [Accepted: 05/11/2024] [Indexed: 05/26/2024]
Abstract
It is well known that application of exogenous trehalose can enhance the heat resistance of plants. To investigate the underlying molecular mechanisms by which exogenous trehalose induces heat resistance in C. sinensis, a combination of physiological and transcriptome analyses was conducted. The findings revealed a significant increase in the activity of superoxide dismutase (SOD) and peroxidase (POD) upon treatment with 5.0 mM trehalose at different time points. Moreover, the contents of proline (PRO), endogenous trehalose, and soluble sugar exhibited a significant increase, while malondialdehyde (MDA) content decreased following treatment with 5.0 mM trehalose under 24 h high-temperature stress (38 °C/29 °C, 12 h/12 h). RNA-seq analysis demonstrated that the differentially expressed genes (DEGs) were significantly enriched in the MAPK pathway, plant hormone signal transduction, phenylpropanoid biosynthesis, flavone and flavonol biosynthesis, flavonoid biosynthesis, and the galactose metabolism pathway. The capability to scavenge free radicals was enhanced, and the expression of a heat shock factor gene (HSFB2B) and two heat shock protein genes (HSP18.1 and HSP26.5) were upregulated in the tea plant. Consequently, it was concluded that exogenous trehalose contributes to alleviating heat stress in C. sinensis. Furthermore, it regulates the expression of genes involved in diverse pathways crucial for C. sinensis under heat-stress conditions. These findings provide novel insights into the molecular mechanisms underlying the alleviation of heat stress in C. sinensis with trehalose.
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Affiliation(s)
- Shizhong Zheng
- College of Biological Science and Engineering, Ningde Normal University, Ningde 352100, China; (S.Z.); (C.L.); (Z.Z.); (L.X.)
| | - Chufei Liu
- College of Biological Science and Engineering, Ningde Normal University, Ningde 352100, China; (S.Z.); (C.L.); (Z.Z.); (L.X.)
- Institute of Horticultural Biotechnology, Fujian Agriculture and Forestry University, Fuzhou 350002, China
| | - Ziwei Zhou
- College of Biological Science and Engineering, Ningde Normal University, Ningde 352100, China; (S.Z.); (C.L.); (Z.Z.); (L.X.)
| | - Liyi Xu
- College of Biological Science and Engineering, Ningde Normal University, Ningde 352100, China; (S.Z.); (C.L.); (Z.Z.); (L.X.)
| | - Zhongxiong Lai
- Institute of Horticultural Biotechnology, Fujian Agriculture and Forestry University, Fuzhou 350002, China
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Delmer D, Dixon RA, Keegstra K, Mohnen D. The plant cell wall-dynamic, strong, and adaptable-is a natural shapeshifter. THE PLANT CELL 2024; 36:1257-1311. [PMID: 38301734 PMCID: PMC11062476 DOI: 10.1093/plcell/koad325] [Citation(s) in RCA: 0] [Impact Index Per Article: 0] [Reference Citation Analysis] [Abstract] [MESH Headings] [Grants] [Track Full Text] [Subscribe] [Scholar Register] [Received: 07/17/2023] [Accepted: 12/19/2023] [Indexed: 02/03/2024]
Abstract
Mythology is replete with good and evil shapeshifters, who, by definition, display great adaptability and assume many different forms-with several even turning themselves into trees. Cell walls certainly fit this definition as they can undergo subtle or dramatic changes in structure, assume many shapes, and perform many functions. In this review, we cover the evolution of knowledge of the structures, biosynthesis, and functions of the 5 major cell wall polymer types that range from deceptively simple to fiendishly complex. Along the way, we recognize some of the colorful historical figures who shaped cell wall research over the past 100 years. The shapeshifter analogy emerges more clearly as we examine the evolving proposals for how cell walls are constructed to allow growth while remaining strong, the complex signaling involved in maintaining cell wall integrity and defense against disease, and the ways cell walls adapt as they progress from birth, through growth to maturation, and in the end, often function long after cell death. We predict the next century of progress will include deciphering cell type-specific wall polymers; regulation at all levels of polymer production, crosslinks, and architecture; and how walls respond to developmental and environmental signals to drive plant success in diverse environments.
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Affiliation(s)
- Deborah Delmer
- Section of Plant Biology, University of California Davis, Davis, CA 95616, USA
| | - Richard A Dixon
- BioDiscovery Institute and Department of Biological Sciences, University of North Texas, Denton, TX 76203, USA
| | - Kenneth Keegstra
- MSU-DOE Plant Research Laboratory, Michigan State University, East Lansing, MI 48823, USA
| | - Debra Mohnen
- Complex Carbohydrate Research Center and Department of Biochemistry and Molecular Biology, University of Georgia, Athens, GA 30602, USA
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Zourif A, Chajii O, Chemchame Y, Benbiyi A, Azoubi Z, El Guendouzi M, El Bouari A. High extraction and excellent anti-UV and anti-oxidant proprieties of lignin from Reseda Luteola L. waste by organosolv process. Int J Biol Macromol 2024; 268:131624. [PMID: 38642685 DOI: 10.1016/j.ijbiomac.2024.131624] [Citation(s) in RCA: 0] [Impact Index Per Article: 0] [Reference Citation Analysis] [Abstract] [Key Words] [MESH Headings] [Track Full Text] [Journal Information] [Subscribe] [Scholar Register] [Received: 01/18/2024] [Revised: 04/06/2024] [Accepted: 04/13/2024] [Indexed: 04/22/2024]
Abstract
Lignin is an abundant natural biopolymer found in plant cell walls. Lignin can come from tinctorial plants, whose residual biomass after dye extraction was typically discarded as waste. The main objective of this study was to extract lignin from the residual biomass of Reseda luteola L. using an organosolv process and to optimize the extraction conditions. The extracted lignin was characterized, and its potential applications as an antimicrobial, anti-oxidant, and anti-UV agent were investigated. Response surface methodology based on a Box-Behnken design was employed to optimize the lignin extraction conditions (organic acid concentration, material-to-liquid ratio, extraction time). The extracted lignin was comprehensively characterized using NMR, FTIR, XRD, SEM-EDX, TGA, DSC, and UV-Vis techniques. The optimal extraction conditions yielded a remarkably high lignin recovery of 62.41 % from the plant waste, which was rarely achieved for non-wood plants in previous works. The extracted lignin exhibited excellent thermal stability and radical scavenging anti-oxidant activity but no significant antimicrobial effects. Treating wool fabrics with lignin nanoparticles substantially enhanced UV protection from the "good" to "excellent" category based on the UPF rating. This sustainable valorization approach converted abundant tinctorial plant waste into high-purity lignin with promising anti-oxidant and UV-blocking properties suitable for various applications.
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Affiliation(s)
- Ali Zourif
- Laboratory of Physical Chemistry, Materials and Catalyse (LCPMC), Faculty of Sciences Ben M'Sick, University of Hassan II -, Casablanca, Morocco
| | - Oumaima Chajii
- Laboratory of Physical Chemistry, Materials and Catalyse (LCPMC), Faculty of Sciences Ben M'Sick, University of Hassan II -, Casablanca, Morocco
| | - Younes Chemchame
- Laboratory of Physical Chemistry, Materials and Catalyse (LCPMC), Faculty of Sciences Ben M'Sick, University of Hassan II -, Casablanca, Morocco; Department of Traditional Weaving, Academy of Traditional Arts, Foundation of Hassan II Mosque, Casablanca, Morocco
| | - Asmaa Benbiyi
- Laboratory of Physical Chemistry, Materials and Catalyse (LCPMC), Faculty of Sciences Ben M'Sick, University of Hassan II -, Casablanca, Morocco.
| | - Zineb Azoubi
- Laboratory of Physiopathology and Molecular Genetics, Faculty of Sciences Ben M'Sick, University of Hassan II, Casablanca, Morocco
| | - Mohamed El Guendouzi
- Laboratory of Physical Chemistry, Materials and Catalyse (LCPMC), Faculty of Sciences Ben M'Sick, University of Hassan II -, Casablanca, Morocco
| | - Abdeslam El Bouari
- Laboratory of Physical Chemistry, Materials and Catalyse (LCPMC), Faculty of Sciences Ben M'Sick, University of Hassan II -, Casablanca, Morocco
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Xia M, McCormack ML, Suseela V, Kennedy PG, Tharayil N. Formations of mycorrhizal symbiosis alter the phenolic heteropolymers in roots and leaves of four temperate woody species. THE NEW PHYTOLOGIST 2024; 242:1476-1485. [PMID: 38659127 DOI: 10.1111/nph.19731] [Citation(s) in RCA: 1] [Impact Index Per Article: 1.0] [Reference Citation Analysis] [Key Words] [MESH Headings] [Grants] [Track Full Text] [Subscribe] [Scholar Register] [Received: 05/18/2023] [Accepted: 02/05/2024] [Indexed: 04/26/2024]
Affiliation(s)
- Mengxue Xia
- Department of Plant & Environmental Sciences, Clemson University, Clemson, SC, 29634, USA
| | - M Luke McCormack
- Center for Tree Science, The Morton Arboretum, Lisle, IL, 60523, USA
| | - Vidya Suseela
- Department of Plant & Environmental Sciences, Clemson University, Clemson, SC, 29634, USA
| | - Peter G Kennedy
- Department of Plant and Microbial Biology, University of Minnesota, St Paul, MN, 55108, USA
| | - Nishanth Tharayil
- Department of Plant & Environmental Sciences, Clemson University, Clemson, SC, 29634, USA
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Rao X, Barros J. Modeling lignin biosynthesis: a pathway to renewable chemicals. TRENDS IN PLANT SCIENCE 2024; 29:546-559. [PMID: 37802691 DOI: 10.1016/j.tplants.2023.09.011] [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: 05/31/2023] [Revised: 09/01/2023] [Accepted: 09/18/2023] [Indexed: 10/08/2023]
Abstract
Plant biomass contains lignin that can be converted into high-value-added chemicals, fuels, and materials. The precise genetic manipulation of lignin content and composition in plant cells offers substantial environmental and economic benefits. However, the intricate regulatory mechanisms governing lignin formation challenge the development of crops with specific lignin profiles. Mathematical models and computational simulations have recently been employed to gain fundamental understanding of the metabolism of lignin and related phenolic compounds. This review article discusses the strategies used for modeling plant metabolic networks, focusing on the application of mathematical modeling for flux network analysis in monolignol biosynthesis. Furthermore, we highlight how current challenges might be overcome to optimize the use of metabolic modeling approaches for developing lignin-engineered plants.
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Affiliation(s)
- Xiaolan Rao
- State Key Laboratory of Biocatalysis and Enzyme Engineering, School of Life Sciences, Hubei University, Wuhan 430062, China.
| | - Jaime Barros
- Division of Plant Sciences and Interdisciplinary Plant Group, University of Missouri, Columbia, MO 65211, USA.
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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: 0] [Impact Index Per Article: 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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Ye P, Su J, Lin J, Li Y, Wu H. Identification of a cinnamoyl-CoA reductase from Cinnamomum cassia involved in trans-cinnamaldehyde biosynthesis. PLANTA 2024; 259:138. [PMID: 38687380 DOI: 10.1007/s00425-024-04419-w] [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: 11/30/2023] [Accepted: 04/16/2024] [Indexed: 05/02/2024]
Abstract
MAIN CONCLUSION The identification of a functional cinnamoyl-CoA reductase enzyme from Cinnamomum cassia involved in trans-cinnamaldehyde biosynthesis offers the potential for enhancing trans-cinnamaldehyde production through genetic engineering. A significant accumulation of trans-cinnamaldehyde has been found in the bark tissues of C. cassia, used in traditional Chinese medicine. trans-Cinnamaldehyde exhibits various pharmacological properties such as anti-inflammatory, analgesic, and protection of the stomach and the digestive tract. However, further elucidation and characterization of the biosynthetic pathway for trans-cinnamaldehyde is required. In this study, we conducted an integrated analysis of trans-cinnamaldehyde accumulation profiles and transcriptomic data from five different C. cassia tissues to identify the genes involved in its biosynthesis. The transcriptome data we obtained included nearly all genes associated with the trans-cinnamaldehyde pathway, with the majority demonstrating high abundance in branch barks and trunk barks. We successfully cloned four C. cassia cinnamoyl-CoA reductases (CcCCRs), a key gene in trans-cinnamaldehyde biosynthesis. We found that the recombinant CcCCR1 protein was the only one that more efficiently converted cinnamoyl-CoA into trans-cinnamaldehyde. CcCCR1 exhibited approximately 14.7-fold higher catalytic efficiency (kcat/Km) compared to the Arabidopsis thaliana cinnamoyl-CoA reductase 1 (AtCCR1); therefore, it can be utilized for engineering higher trans-cinnamaldehyde production as previously reported. Molecular docking studies and mutagenesis experiments also validated the superior catalytic activity of CcCCR1 compared to AtCCR1. These findings provide valuable insights for the functional characterization of enzyme-coding genes and hold potential for future engineering of trans-cinnamaldehyde biosynthetic pathways.
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Affiliation(s)
- Peng Ye
- Center for Medicinal Plants Research, College of Life Sciences, South China Agricultural University, Guangzhou, 510642, China
| | - Jianmu Su
- Center for Medicinal Plants Research, College of Life Sciences, South China Agricultural University, Guangzhou, 510642, China
| | - Jianhao Lin
- Center for Medicinal Plants Research, College of Life Sciences, South China Agricultural University, Guangzhou, 510642, China
| | - Yanqun Li
- Center for Medicinal Plants Research, College of Life Sciences, South China Agricultural University, Guangzhou, 510642, China.
- Guangdong Key Laboratory for Innovative Development and Utilization of Forest Plant Germplasm, College of Forestry, South China Agricultural University, Guangzhou, 510642, China.
| | - Hong Wu
- Center for Medicinal Plants Research, College of Life Sciences, South China Agricultural University, Guangzhou, 510642, China.
- Guangdong Key Laboratory for Innovative Development and Utilization of Forest Plant Germplasm, College of Forestry, South China Agricultural University, Guangzhou, 510642, China.
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Wang Z, Wu J, Kong W, Zhou Y, Ye C, Yuan Q, Zhang Y, Li P. The Integration of Transcriptome and Metabolome Analyses Provides Insights into the Determinants of the Wood Properties in Toona ciliata. Int J Mol Sci 2024; 25:4541. [PMID: 38674126 PMCID: PMC11050501 DOI: 10.3390/ijms25084541] [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: 02/23/2024] [Revised: 04/15/2024] [Accepted: 04/18/2024] [Indexed: 04/28/2024] Open
Abstract
Toona ciliata, also known as Chinese mahogany, is a high-quality and fast-growing wood species with a high economic value. The wood properties of T. ciliata of different provenances vary significantly. In this study, we conducted comprehensive transcriptome and metabolome analyses of red and non-red T. ciliata wood cores of different provenances to compare their wood properties and explore the differential metabolites and genes that govern the variation in their wood properties. Through combined analyses, three differential genes and two metabolites were identified that are possibly related to lignin synthesis. The lignin content in wood cores from T. ciliata of different provenances shows significant variation following systematic measurement and comparisons. The gene Tci09G002190, one of the three differential genes, was identified as a member of the CAD (Cinnamyl alcohol dehydrogenase) gene family of T. ciliata, which is associated with lignin synthesis. Our data provide insights into the determinants of the wood properties in T. ciliata, providing a solid foundation for research into the subsequent mechanisms of the formation of T. ciliata wood.
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Affiliation(s)
- Zhi Wang
- College of Forestry and Landscape Architecture, South China Agricultural University, Guangzhou 510642, China; (Z.W.); (J.W.); (W.K.); (Y.Z.); (C.Y.); (Q.Y.); (Y.Z.)
- Guangdong Key Laboratory for Innovative Development and Utilization of Forest Plant Germplasm, Guangzhou 510642, China
| | - Jinsong Wu
- College of Forestry and Landscape Architecture, South China Agricultural University, Guangzhou 510642, China; (Z.W.); (J.W.); (W.K.); (Y.Z.); (C.Y.); (Q.Y.); (Y.Z.)
- Guangdong Key Laboratory for Innovative Development and Utilization of Forest Plant Germplasm, Guangzhou 510642, China
| | - Weijia Kong
- College of Forestry and Landscape Architecture, South China Agricultural University, Guangzhou 510642, China; (Z.W.); (J.W.); (W.K.); (Y.Z.); (C.Y.); (Q.Y.); (Y.Z.)
- Guangdong Key Laboratory for Innovative Development and Utilization of Forest Plant Germplasm, Guangzhou 510642, China
| | - Yu Zhou
- College of Forestry and Landscape Architecture, South China Agricultural University, Guangzhou 510642, China; (Z.W.); (J.W.); (W.K.); (Y.Z.); (C.Y.); (Q.Y.); (Y.Z.)
- Guangdong Key Laboratory for Innovative Development and Utilization of Forest Plant Germplasm, Guangzhou 510642, China
| | - Chunyi Ye
- College of Forestry and Landscape Architecture, South China Agricultural University, Guangzhou 510642, China; (Z.W.); (J.W.); (W.K.); (Y.Z.); (C.Y.); (Q.Y.); (Y.Z.)
- Guangdong Key Laboratory for Innovative Development and Utilization of Forest Plant Germplasm, Guangzhou 510642, China
| | - Qianyun Yuan
- College of Forestry and Landscape Architecture, South China Agricultural University, Guangzhou 510642, China; (Z.W.); (J.W.); (W.K.); (Y.Z.); (C.Y.); (Q.Y.); (Y.Z.)
- Guangdong Key Laboratory for Innovative Development and Utilization of Forest Plant Germplasm, Guangzhou 510642, China
| | - Yongjia Zhang
- College of Forestry and Landscape Architecture, South China Agricultural University, Guangzhou 510642, China; (Z.W.); (J.W.); (W.K.); (Y.Z.); (C.Y.); (Q.Y.); (Y.Z.)
- Guangdong Key Laboratory for Innovative Development and Utilization of Forest Plant Germplasm, Guangzhou 510642, China
| | - Pei Li
- College of Forestry and Landscape Architecture, South China Agricultural University, Guangzhou 510642, China; (Z.W.); (J.W.); (W.K.); (Y.Z.); (C.Y.); (Q.Y.); (Y.Z.)
- Guangdong Key Laboratory for Innovative Development and Utilization of Forest Plant Germplasm, Guangzhou 510642, China
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Shen B, Li W, Zheng Y, Zhou X, Zhang Y, Qu M, Wang Y, Yuan Y, Pang K, Feng Y, Wu J, Zeng B. Morphological and molecular response mechanisms of the root system of different Hemarthria compressa species to submergence stress. FRONTIERS IN PLANT SCIENCE 2024; 15:1342814. [PMID: 38638357 PMCID: PMC11024365 DOI: 10.3389/fpls.2024.1342814] [Citation(s) in RCA: 0] [Impact Index Per Article: 0] [Reference Citation Analysis] [Abstract] [Key Words] [Track Full Text] [Figures] [Subscribe] [Scholar Register] [Received: 11/22/2023] [Accepted: 03/21/2024] [Indexed: 04/20/2024]
Abstract
Introduction The severity of flood disasters is increasing due to climate change, resulting in a significant reduction in the yield and quality of forage crops worldwide. This poses a serious threat to the development of agriculture and livestock. Hemarthria compressa is an important high-quality forage grass in southern China. In recent years, frequent flooding has caused varying degrees of impacts on H. compressa and their ecological environment. Methods In this study, we evaluated differences in flooding tolerance between the root systems of the experimental materials GY (Guang Yi, flood-tolerant) and N1291 (N201801291, flood-sensitive). We measured their morphological indexes after 7 d, 14 d, and 21 d of submergence stress and sequenced their transcriptomes at 8 h and 24 h, with 0 h as the control. Results During submergence stress, the number of adventitious roots and root length of both GY and N1291 tended to increase, but the overall growth of GY was significantly higher than that of N1291. RNA-seq analysis revealed that 6046 and 7493 DEGs were identified in GY-8h and GY-24h, respectively, and 9198 and 4236 DEGs in N1291-8h and N1291-24h, respectively, compared with the control. The GO and KEGG enrichment analysis results indicated the GO terms mainly enriched among the DEGs were oxidation-reduction process, obsolete peroxidase reaction, and other antioxidant-related terms. The KEGG pathways that were most significantly enriched were phenylpropanoid biosynthesis, plant hormone signal transduction etc. The genes of transcription factor families, such as C2H2, bHLH and bZIP, were highly expressed in the H. compressa after submergence, which might be closely related to the submergence adaptive response mechanisms of H. compressa. Discussion This study provides basic data for analyzing the molecular and morphological mechanisms of H. compressa in response to submergence stress, and also provides theoretical support for the subsequent improvement of submergence tolerance traits of H. compressa.
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Affiliation(s)
- Bingna Shen
- College of Animal Science and Technology, Southwest University, Chongqing, China
| | - Wenwen Li
- College of Animal Science and Technology, Southwest University, Chongqing, China
| | - Yuqian Zheng
- College of Animal Science and Technology, Southwest University, Chongqing, China
| | - Xiaoli Zhou
- College of Animal Science and Technology, Southwest University, Chongqing, China
| | - Yinuo Zhang
- College of Grassland Agriculture, Northwest Agriculture and Forestry University, Shanxi, China
| | - Minghao Qu
- College of Animal Science and Technology, Southwest University, Chongqing, China
- Institute of Prataculture, Chongqing Academy of Animal Science, Chongqing, China
| | - Yinchen Wang
- Institute of Animal Husbandry and Veterinary Medicine, Guizhou Provincial Academy of Agricultural Sciences, Guizhou Key Laboratory of Agricultural Biotechnology, Guizhou, China
| | - Yang Yuan
- Institute of Animal Husbandry and Veterinary Medicine, Guizhou Provincial Academy of Agricultural Sciences, Guizhou Key Laboratory of Agricultural Biotechnology, Guizhou, China
| | - Kaiyue Pang
- College of Animal Science and Technology, Southwest University, Chongqing, China
| | - Yanlong Feng
- College of Animal Science and Technology, Southwest University, Chongqing, China
| | - Jiahai Wu
- Institute of Animal Husbandry and Veterinary Medicine, Guizhou Provincial Academy of Agricultural Sciences, Guizhou Key Laboratory of Agricultural Biotechnology, Guizhou, China
| | - Bing Zeng
- College of Animal Science and Technology, Southwest University, Chongqing, China
- College of Animal Science and Technology, Southwest University, Chongqing University Herbivore Engineering Research Center, Chongqing, China
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Lam LPY, Lui ACW, Bartley LE, Mikami B, Umezawa T, Lo C. Multifunctional 5-hydroxyconiferaldehyde O-methyltransferases (CAldOMTs) in plant metabolism. JOURNAL OF EXPERIMENTAL BOTANY 2024; 75:1671-1695. [PMID: 38198655 DOI: 10.1093/jxb/erae011] [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: 08/02/2023] [Accepted: 01/09/2024] [Indexed: 01/12/2024]
Abstract
Lignin, flavonoids, melatonin, and stilbenes are plant specialized metabolites with diverse physiological and biological functions, supporting plant growth and conferring stress resistance. Their biosynthesis requires O-methylations catalyzed by 5-hydroxyconiferaldehyde O-methyltransferase (CAldOMT; also called caffeic acid O-methyltransferase, COMT). CAldOMT was first known for its roles in syringyl (S) lignin biosynthesis in angiosperm cell walls and later found to be multifunctional. This enzyme also catalyzes O-methylations in flavonoid, melatonin, and stilbene biosynthetic pathways. Phylogenetic analysis indicated the convergent evolution of enzymes with OMT activities towards the monolignol biosynthetic pathway intermediates in some gymnosperm species that lack S-lignin and Selaginella moellendorffii, a lycophyte which produces S-lignin. Furthermore, neofunctionalization of CAldOMTs occurred repeatedly during evolution, generating unique O-methyltransferases (OMTs) with novel catalytic activities and/or accepting novel substrates, including lignans, 1,2,3-trihydroxybenzene, and phenylpropenes. This review summarizes multiple aspects of CAldOMTs and their related proteins in plant metabolism and discusses their evolution, molecular mechanism, and roles in biorefineries, agriculture, and synthetic biology.
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Affiliation(s)
- Lydia Pui Ying Lam
- Graduate School of Engineering Science, Akita University, Tegata Gakuen-machi 1-1, Akita City, Akita 010-0852, Japan
| | - Andy C W Lui
- Plant Breeding and Genetics Section, School of Integrative Plant Science, Cornell University, Ithaca, NY 14853, USA
| | - Laura E Bartley
- Institute of Biological Chemistry, Washington State University, Pullman, WA 99164, USA
| | - Bunzo Mikami
- Research Institute for Sustainable Humanosphere, Kyoto University, Gokasho, Uji, Kyoto 611-0011, Japan
| | - Toshiaki Umezawa
- Research Institute for Sustainable Humanosphere, Kyoto University, Gokasho, Uji, Kyoto 611-0011, Japan
| | - Clive Lo
- School of Biological Sciences, The University of Hong Kong, Pokfulam, Hong Kong, China
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Gaddam SR, Sharma A, Trivedi PK. miR397b-LAC2 module regulates cadmium stress response by coordinating root lignification and copper homeostasis in Arabidopsis thaliana. JOURNAL OF HAZARDOUS MATERIALS 2024; 465:133100. [PMID: 38042003 DOI: 10.1016/j.jhazmat.2023.133100] [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: 09/04/2023] [Revised: 11/20/2023] [Accepted: 11/24/2023] [Indexed: 12/04/2023]
Abstract
Non-essential heavy metal cadmium (Cd) is toxic to plants and animals. Cadmium affects plant photosynthesis, respiration, and causes water imbalance and may lead to plant death. Cadmium induces toxicity by interfering with the essential metal copper (Cu) homeostasis, which affects plant nutrition. Though root lignin biosynthesis is positively regulated by Cd stress, the underlying mechanisms promoting lignin accumulation and controlling Cd-induced Cu limitation responses are unclear. Here, we elucidated the role of Cu-responsive microRNA (miR397b) in Arabidopsis thaliana plants for Cd stress by targeting the LACCASE2 (LAC2) gene. This study demonstrated the fundamental mechanism of miR397b-mediated Cd stress response by enhancing the lignin content in root tissues. We developed miR397b over-expressing plants, which showed considerable Cd stress tolerance. Plants with knockdown function of LAC2 also showed significant tolerance to Cd stress. miR397b overexpressing and lac2 mutant plants showed root reduction, higher biomass and chlorophyll content, and significantly lower Reactive Oxygen Species (ROS). This study demonstrated the miR397b-mediated Cd stress response in Arabidopsis by enhancing the lignin content in root tissues. We conclude that modulation in miR397b can be potentially used for improving plants for Cd tolerance and Cu homeostasis.
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Affiliation(s)
- Subhash Reddy Gaddam
- CSIR-National Botanical Research Institute, Council of Scientific and Industrial Research (CSIR-NBRI), Rana Pratap Marg, Lucknow 226001, India; CSIR, Central Institute of Medicinal and Aromatic Plants (CSIR-CIMAP), P.O. CIMAP, Near Kukrail Picnic Spot, Lucknow 226 015, India
| | - Ashish Sharma
- Academy of Scientific and Innovative Research (AcSIR), Ghaziabad 201002, India; CSIR, Central Institute of Medicinal and Aromatic Plants (CSIR-CIMAP), P.O. CIMAP, Near Kukrail Picnic Spot, Lucknow 226 015, India
| | - Prabodh Kumar Trivedi
- CSIR-National Botanical Research Institute, Council of Scientific and Industrial Research (CSIR-NBRI), Rana Pratap Marg, Lucknow 226001, India; Academy of Scientific and Innovative Research (AcSIR), Ghaziabad 201002, India; CSIR, Central Institute of Medicinal and Aromatic Plants (CSIR-CIMAP), P.O. CIMAP, Near Kukrail Picnic Spot, Lucknow 226 015, India.
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Wolabu TW, Mahmood K, Chen F, Torres-Jerez I, Udvardi M, Tadege M, Cong L, Wang Z, Wen J. Mutating alfalfa COUMARATE 3-HYDROXYLASE using multiplex CRISPR/Cas9 leads to reduced lignin deposition and improved forage quality. FRONTIERS IN PLANT SCIENCE 2024; 15:1363182. [PMID: 38504900 PMCID: PMC10948404 DOI: 10.3389/fpls.2024.1363182] [Citation(s) in RCA: 0] [Impact Index Per Article: 0] [Reference Citation Analysis] [Abstract] [Key Words] [Track Full Text] [Figures] [Subscribe] [Scholar Register] [Received: 12/29/2023] [Accepted: 02/21/2024] [Indexed: 03/21/2024]
Abstract
Alfalfa (Medicago sativa L.) forage quality is adversely affected by lignin deposition in cell walls at advanced maturity stages. Reducing lignin content through RNA interference or antisense approaches has been shown to improve alfalfa forage quality and digestibility. We employed a multiplex CRISPR/Cas9-mediated gene-editing system to reduce lignin content and alter lignin composition in alfalfa by targeting the COUMARATE 3-HYDROXYLASE (MsC3H) gene, which encodes a key enzyme in lignin biosynthesis. Four guide RNAs (gRNAs) targeting the first exon of MsC3H were designed and clustered into a tRNA-gRNA polycistronic system and introduced into tetraploid alfalfa via Agrobacterium-mediated transformation. Out of 130 transgenic lines, at least 73 lines were confirmed to contain gene-editing events in one or more alleles of MsC3H. Fifty-five lines were selected for lignin content/composition analysis. Amongst these lines, three independent tetra-allelic homozygous lines (Msc3h-013, Msc3h-121, and Msc3h-158) with different mutation events in MsC3H were characterized in detail. Homozygous mutation of MsC3H in these three lines significantly reduced the lignin content and altered lignin composition in stems. Moreover, these lines had significantly lower levels of acid detergent fiber and neutral detergent fiber as well as higher levels of total digestible nutrients, relative feed values, and in vitro true dry matter digestibility. Taken together, these results showed that CRISPR/Cas9-mediated editing of MsC3H successfully reduced shoot lignin content, improved digestibility, and nutritional values without sacrificing plant growth and biomass yield. These lines could be used in alfalfa breeding programs to generate elite transgene-free alfalfa cultivars with reduced lignin and improved forage quality.
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Affiliation(s)
- Tezera W. Wolabu
- Institute for Agricultural Bioscience, Oklahoma State University, Ardmore, OK, United States
| | - Kashif Mahmood
- Institute for Agricultural Bioscience, Oklahoma State University, Ardmore, OK, United States
| | - Fang Chen
- Center for Biotechnology and Genomics, Texas Tech University, Lubbock, TX, United States
| | - Ivone Torres-Jerez
- Institute for Agricultural Bioscience, Oklahoma State University, Ardmore, OK, United States
| | - Michael Udvardi
- Queensland Alliance for Agriculture and Food Innovation, The University of Queensland, St. Lucia, QLD, Australia
| | - Million Tadege
- Institute for Agricultural Bioscience, Oklahoma State University, Ardmore, OK, United States
| | - Lili Cong
- College of Grassland Science, Qingdao Agricultural University, Qingdao, Shandong, China
| | - Zengyu Wang
- College of Grassland Science, Qingdao Agricultural University, Qingdao, Shandong, China
| | - Jiangqi Wen
- Institute for Agricultural Bioscience, Oklahoma State University, Ardmore, OK, United States
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47
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Pineda M, Barón M, Pérez-Bueno ML. Diverse projected climate change scenarios affect the physiology of broccoli plants to different extents. PHYSIOLOGIA PLANTARUM 2024; 176:e14269. [PMID: 38528313 DOI: 10.1111/ppl.14269] [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: 12/19/2023] [Revised: 02/23/2024] [Accepted: 03/14/2024] [Indexed: 03/27/2024]
Abstract
Climate change caused by global warming involves crucial plant growth factors such as atmospheric CO2 concentration, ambient temperature or water availability. These stressors usually co-occur, causing intricate alterations in plant physiology and development. This work focuses on how elevated atmospheric CO2 levels, together with the concomitant high temperature, would affect the physiology of a relevant crop, such as broccoli. Particular attention has been paid to those defence mechanisms that contribute to plant fitness under abiotic stress. Results show that both photosynthesis and leaf transpiration were reduced in plants grown under climate change environments compared to those grown under current climate conditions. Furthermore, an induction of carbohydrate catabolism pointed to a redistribution from primary to secondary metabolism. This result could be related to a reinforcement of cell walls, as well as to an increase in the pool of antioxidants in the leaves. Broccoli plants, a C3 crop, grown under an intermediate condition showed activation of those adaptive mechanisms, which would contribute to coping with abiotic stress, as confirmed by reduced levels of lipid peroxidation relative to current climate conditions. On the contrary, the most severe climate change scenario exceeded the adaptive capacity of broccoli plants, as shown by the inhibition of growth and reduced vigour of plants. In conclusion, only a moderate increase in atmospheric CO2 concentration and temperature would not have a negative impact on broccoli crop yields.
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Affiliation(s)
- Mónica Pineda
- Department of Biochemistry and Molecular and Cell Biology of Plants, Estación Experimental del Zaidín, Spanish National Research Council, Granada, Spain
| | - Matilde Barón
- Department of Biochemistry and Molecular and Cell Biology of Plants, Estación Experimental del Zaidín, Spanish National Research Council, Granada, Spain
| | - María Luisa Pérez-Bueno
- Department of Biochemistry and Molecular and Cell Biology of Plants, Estación Experimental del Zaidín, Spanish National Research Council, Granada, Spain
- Department of Plant Physiology, Facultad de Farmacia, University of Granada, Granada, Spain
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Wang H, Li L, Ma L, Fernie AR, Fu A, Bai C, Sang Z, Guo S, Zhang F, Wang Q, Zheng Y, Zuo J. Revealing the specific regulations of nitric oxide on the postharvest ripening and senescence of bitter melon fruit. ABIOTECH 2024; 5:29-45. [PMID: 38576434 PMCID: PMC10987440 DOI: 10.1007/s42994-023-00110-y] [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: 03/06/2023] [Accepted: 06/27/2023] [Indexed: 04/06/2024]
Abstract
Bitter melon fruit is susceptible to yellowing, softening, and rotting under room-temperature storage conditions, resulting in reduced commercial value. Nitric oxide (NO) is an important signaling molecule and plays a crucial role in regulating the fruit postharvest quality. In this study, we investigated the effects of NO treatment on changes in sensory and firmness of bitter melon fruit during postharvest storage. Moreover, transcriptomic, metabolomic, and proteomic analyses were performed to elucidate the regulatory mechanisms through which NO treatment delays the ripening and senescence of bitter melon fruit. Our results show that differentially expressed genes (DEGs) were involved in fruit texture (CSLE, β-Gal, and PME), plant hormone signal transduction (ACS, JAR4, and AUX28), and fruit flavor and aroma (SUS2, LOX, and GDH2). In addition, proteins differentially abundant were associated with fruit texture (PLY, PME, and PGA) and plant hormone signal transduction (PBL15, JAR1, and PYL9). Moreover, NO significantly increased the abundance of key enzymes involved in the phenylpropanoid biosynthetic pathway, thus enhancing the disease resistance and alleviating softening of bitter melon fruit. Finally, differential metabolites mainly included phenolic acids, terpenoids, and flavonoids. These results provide a theoretical basis for further studies on the physiological changes associated with postharvest ripening and senescence of bitter melon fruit. Supplementary Information The online version contains supplementary material available at 10.1007/s42994-023-00110-y.
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Affiliation(s)
- Hongwei Wang
- Key Laboratory of Vegetable Postharvest Processing, Ministry of Agriculture, Beijing Key Laboratory of Fruits and Vegetable Storage and Processing, Key Laboratory of Biology and Genetic Improvement of Horticultural Crops (North China) of Ministry of Agriculture, Key Laboratory of Urban Agriculture (North) of Ministry of Agriculture, Beijing Vegetable Research Center, Institute of Agro-Products Processing and Food Nutrition, Beijing Academy of Agriculture and Forestry Sciences, Beijing, 100097 China
- College of Food Science and Biotechnology, Tianjin Agricultural University, Tianjin, 300392 China
| | - Ling Li
- College of Food Science and Biotechnology, Tianjin Agricultural University, Tianjin, 300392 China
| | - Lili Ma
- Key Laboratory of Vegetable Postharvest Processing, Ministry of Agriculture, Beijing Key Laboratory of Fruits and Vegetable Storage and Processing, Key Laboratory of Biology and Genetic Improvement of Horticultural Crops (North China) of Ministry of Agriculture, Key Laboratory of Urban Agriculture (North) of Ministry of Agriculture, Beijing Vegetable Research Center, Institute of Agro-Products Processing and Food Nutrition, Beijing Academy of Agriculture and Forestry Sciences, Beijing, 100097 China
| | - Alisdair R. Fernie
- Max Planck Institute of Molecular Plant Physiology, 14476 Potsdam Golm, Germany
| | - Anzhen Fu
- Key Laboratory of Vegetable Postharvest Processing, Ministry of Agriculture, Beijing Key Laboratory of Fruits and Vegetable Storage and Processing, Key Laboratory of Biology and Genetic Improvement of Horticultural Crops (North China) of Ministry of Agriculture, Key Laboratory of Urban Agriculture (North) of Ministry of Agriculture, Beijing Vegetable Research Center, Institute of Agro-Products Processing and Food Nutrition, Beijing Academy of Agriculture and Forestry Sciences, Beijing, 100097 China
| | - Chunmei Bai
- Key Laboratory of Vegetable Postharvest Processing, Ministry of Agriculture, Beijing Key Laboratory of Fruits and Vegetable Storage and Processing, Key Laboratory of Biology and Genetic Improvement of Horticultural Crops (North China) of Ministry of Agriculture, Key Laboratory of Urban Agriculture (North) of Ministry of Agriculture, Beijing Vegetable Research Center, Institute of Agro-Products Processing and Food Nutrition, Beijing Academy of Agriculture and Forestry Sciences, Beijing, 100097 China
| | - Zhaoze Sang
- Key Laboratory of Vegetable Postharvest Processing, Ministry of Agriculture, Beijing Key Laboratory of Fruits and Vegetable Storage and Processing, Key Laboratory of Biology and Genetic Improvement of Horticultural Crops (North China) of Ministry of Agriculture, Key Laboratory of Urban Agriculture (North) of Ministry of Agriculture, Beijing Vegetable Research Center, Institute of Agro-Products Processing and Food Nutrition, Beijing Academy of Agriculture and Forestry Sciences, Beijing, 100097 China
| | - Susu Guo
- Key Laboratory of Vegetable Postharvest Processing, Ministry of Agriculture, Beijing Key Laboratory of Fruits and Vegetable Storage and Processing, Key Laboratory of Biology and Genetic Improvement of Horticultural Crops (North China) of Ministry of Agriculture, Key Laboratory of Urban Agriculture (North) of Ministry of Agriculture, Beijing Vegetable Research Center, Institute of Agro-Products Processing and Food Nutrition, Beijing Academy of Agriculture and Forestry Sciences, Beijing, 100097 China
| | - Fan Zhang
- Key Laboratory of Vegetable Postharvest Processing, Ministry of Agriculture, Beijing Key Laboratory of Fruits and Vegetable Storage and Processing, Key Laboratory of Biology and Genetic Improvement of Horticultural Crops (North China) of Ministry of Agriculture, Key Laboratory of Urban Agriculture (North) of Ministry of Agriculture, Beijing Vegetable Research Center, Institute of Agro-Products Processing and Food Nutrition, Beijing Academy of Agriculture and Forestry Sciences, Beijing, 100097 China
| | - Qing Wang
- Key Laboratory of Vegetable Postharvest Processing, Ministry of Agriculture, Beijing Key Laboratory of Fruits and Vegetable Storage and Processing, Key Laboratory of Biology and Genetic Improvement of Horticultural Crops (North China) of Ministry of Agriculture, Key Laboratory of Urban Agriculture (North) of Ministry of Agriculture, Beijing Vegetable Research Center, Institute of Agro-Products Processing and Food Nutrition, Beijing Academy of Agriculture and Forestry Sciences, Beijing, 100097 China
| | - Yanyan Zheng
- Key Laboratory of Vegetable Postharvest Processing, Ministry of Agriculture, Beijing Key Laboratory of Fruits and Vegetable Storage and Processing, Key Laboratory of Biology and Genetic Improvement of Horticultural Crops (North China) of Ministry of Agriculture, Key Laboratory of Urban Agriculture (North) of Ministry of Agriculture, Beijing Vegetable Research Center, Institute of Agro-Products Processing and Food Nutrition, Beijing Academy of Agriculture and Forestry Sciences, Beijing, 100097 China
| | - Jinhua Zuo
- Key Laboratory of Vegetable Postharvest Processing, Ministry of Agriculture, Beijing Key Laboratory of Fruits and Vegetable Storage and Processing, Key Laboratory of Biology and Genetic Improvement of Horticultural Crops (North China) of Ministry of Agriculture, Key Laboratory of Urban Agriculture (North) of Ministry of Agriculture, Beijing Vegetable Research Center, Institute of Agro-Products Processing and Food Nutrition, Beijing Academy of Agriculture and Forestry Sciences, Beijing, 100097 China
- Institute of Food Science and Technology, Chinese Academy of Agricultural Sciences, Beijing, China
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Cao S, Wang M, Pan J, Luo D, Mubeen S, Wang C, Yue J, Wu X, Wu Q, Zhang H, Chen C, Rehman M, Xie S, Li R, Chen P. Physiological, transcriptome and gene functional analysis provide novel sights into cadmium accumulation and tolerance mechanisms in kenaf. J Environ Sci (China) 2024; 137:500-514. [PMID: 37980034 DOI: 10.1016/j.jes.2023.03.006] [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: 11/20/2022] [Revised: 03/02/2023] [Accepted: 03/06/2023] [Indexed: 11/20/2023]
Abstract
Kenaf is considered to have great potential for remediation of heavy metals in ecosystems. However, studies on molecular mechanisms of root Cd accumulation and tolerance are still inadequate. In this study, two differently tolerant kenaf cultivars were selected as materials and the physiological and transcriptomic effects were evaluated under Cd stress. This study showed that 200 µmol/L CdCl2 treatment triggered the reactive oxygen species (ROS) explosion and membrane lipid peroxidation. Compared with the Cd-sensitive cultivar 'Z', the Cd-tolerant cultivar 'F' was able to resist oxidative stress in cells by producing higher antioxidant enzyme activities and increasing the contents of ascorbic acid (AsA) and glutathione (GSH). The root cell wall of 'F' exhibited higher polysaccharide contents under Cd treatment, providing more Cd-binding sites. There were 3,439 differentially expressed genes (DEGs) that were co-regulated by Cd treatment in two cultivars. Phenylpropanoid biosynthesis and plant hormone signal transduction pathways were significantly enriched by functional annotation analysis. DEGs associated with pectin, cellulose, and hemi-cellulose metabolism were involved in Cd chelation of root cell wall; V-ATPases, ABCC3 and Narmp3 could participated in vacuolar compartmentalization of Cd; PDR1 was responsible for Cd efflux; the organic acid transporters contributed to the absorption of Cd in soil. These genes might have played key roles in kenaf Cd tolerance and Cd accumulation. Moreover, HcZIP2 was identified to be involved in Cd uptake and transport in kenaf. Our findings provide a deeper understanding of the molecular pathways underlying Cd accumulation and detoxification mechanisms in kenaf.
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Affiliation(s)
- Shan Cao
- Guangxi Key Laboratory of Agro-environment and Agric-products safety, Key Laboratory of Plant Genetics and Breeding, College of Agriculture, Guangxi University, Nanning 530004, China
| | - Meng Wang
- Guangxi Key Laboratory of Agro-environment and Agric-products safety, Key Laboratory of Plant Genetics and Breeding, College of Agriculture, Guangxi University, Nanning 530004, China
| | - Jiao Pan
- Guangxi Key Laboratory of Agro-environment and Agric-products safety, Key Laboratory of Plant Genetics and Breeding, College of Agriculture, Guangxi University, Nanning 530004, China
| | - Dengjie Luo
- Guangxi Key Laboratory of Agro-environment and Agric-products safety, Key Laboratory of Plant Genetics and Breeding, College of Agriculture, Guangxi University, Nanning 530004, China
| | - Samavia Mubeen
- Guangxi Key Laboratory of Agro-environment and Agric-products safety, Key Laboratory of Plant Genetics and Breeding, College of Agriculture, Guangxi University, Nanning 530004, China
| | - Caijin Wang
- Guangxi Key Laboratory of Agro-environment and Agric-products safety, Key Laboratory of Plant Genetics and Breeding, College of Agriculture, Guangxi University, Nanning 530004, China
| | - Jiao Yue
- Guangxi Key Laboratory of Agro-environment and Agric-products safety, Key Laboratory of Plant Genetics and Breeding, College of Agriculture, Guangxi University, Nanning 530004, China
| | - Xia Wu
- Guangxi Key Laboratory of Agro-environment and Agric-products safety, Key Laboratory of Plant Genetics and Breeding, College of Agriculture, Guangxi University, Nanning 530004, China
| | - Qijing Wu
- Guangxi Key Laboratory of Agro-environment and Agric-products safety, Key Laboratory of Plant Genetics and Breeding, College of Agriculture, Guangxi University, Nanning 530004, China
| | - Hui Zhang
- Guangxi Key Laboratory of Agro-environment and Agric-products safety, Key Laboratory of Plant Genetics and Breeding, College of Agriculture, Guangxi University, Nanning 530004, China
| | - Canni Chen
- Guangxi Key Laboratory of Agro-environment and Agric-products safety, Key Laboratory of Plant Genetics and Breeding, College of Agriculture, Guangxi University, Nanning 530004, China
| | - Muzammal Rehman
- Guangxi Key Laboratory of Agro-environment and Agric-products safety, Key Laboratory of Plant Genetics and Breeding, College of Agriculture, Guangxi University, Nanning 530004, China
| | - Sichen Xie
- Guangxi Key Laboratory of Agro-environment and Agric-products safety, Key Laboratory of Plant Genetics and Breeding, College of Agriculture, Guangxi University, Nanning 530004, China
| | - Ru Li
- State Key Laboratory for Conservation and Utilization of Subtropical Agro-bioresources, College of Life Science and Technology, Guangxi University, Nanning 530004, China
| | - Peng Chen
- Guangxi Key Laboratory of Agro-environment and Agric-products safety, Key Laboratory of Plant Genetics and Breeding, College of Agriculture, Guangxi University, Nanning 530004, China.
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50
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Zhu Y, Li L. Wood of trees: Cellular structure, molecular formation, and genetic engineering. JOURNAL OF INTEGRATIVE PLANT BIOLOGY 2024; 66:443-467. [PMID: 38032010 DOI: 10.1111/jipb.13589] [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: 08/30/2023] [Accepted: 11/28/2023] [Indexed: 12/01/2023]
Abstract
Wood is an invaluable asset to human society due to its renewable nature, making it suitable for both sustainable energy production and material manufacturing. Additionally, wood derived from forest trees plays a crucial role in sequestering a significant portion of the carbon dioxide fixed during photosynthesis by terrestrial plants. Nevertheless, with the expansion of the global population and ongoing industrialization, forest coverage has been substantially decreased, resulting in significant challenges for wood production and supply. Wood production practices have changed away from natural forests toward plantation forests. Thus, understanding the underlying genetic mechanisms of wood formation is the foundation for developing high-quality, fast-growing plantation trees. Breeding ideal forest trees for wood production using genetic technologies has attracted the interest of many. Tremendous studies have been carried out in recent years on the molecular, genetic, and cell-biological mechanisms of wood formation, and considerable progress and findings have been achieved. These studies and findings indicate enormous possibilities and prospects for tree improvement. This review will outline and assess the cellular and molecular mechanisms of wood formation, as well as studies on genetically improving forest trees, and address future development prospects.
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Affiliation(s)
- Yingying Zhu
- State Key Laboratory of Herbage Improvement and Grassland Agro-ecosystems and College of Ecology, Lanzhou University, Lanzhou, 730000, China
| | - Laigeng Li
- National Key Laboratory of Plant Molecular Genetics, CAS Center for Excellence in Molecular Plant Sciences, Chinese Academy of Sciences, Shanghai, 200032, China
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