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Chen Y, Liu P, Wang Y, Xu T, Li J, Pei Z, Zhang Y, Li G, Yang Q. Characteristic of epicotyl dormancy and its hormonal regulation in Chinese cork oak (Quercus variabilis). PLANT PHYSIOLOGY AND BIOCHEMISTRY : PPB 2024; 215:109041. [PMID: 39181087 DOI: 10.1016/j.plaphy.2024.109041] [Citation(s) in RCA: 0] [Impact Index Per Article: 0] [Reference Citation Analysis] [Abstract] [Key Words] [Track Full Text] [Subscribe] [Scholar Register] [Received: 01/25/2024] [Revised: 07/24/2024] [Accepted: 08/11/2024] [Indexed: 08/27/2024]
Abstract
Emergence heterogeneity caused by epicotyl dormancy contributes to variations in seedling quality during large-scale breeding. However, the mechanism of epicotyl dormancy release remains obscure. We first categorized the emergence stages of Chinese cork oak (Quercus variabilis) using the BBCH-scale. Subsequently, we identified the key stage of the epicotyl dormancy process. Our findings indicated that cold stratification significantly released epicotyl dormancy by increasing the levels of gibberellic acid 3 (GA3) and GA4. Genes associated with GA biosynthesis and signaling also exhibited altered expression patterns. Inhibition of GA biosynthesis by paclobutrazol (PAC) treatment severely inhibited emergence, with no effect on seed germination. Different concentrations (50 μM, 100 μM, and 200 μM) of GA3 and GA4+7 treatments of germinated seeds demonstrated that both can promote the emergence, with GA4 exhibiting a more pronounced effect. In conclusion, this study provides valuable insights into the characterization of epicotyl dormancy in Chinese cork oak and highlights the critical role of GA biosynthesis in seedling emergence. These findings serve as a basis for further investigations on epicotyl dormancy and advancing large-scale breeding techniques.
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Affiliation(s)
- Yixin Chen
- State Key Laboratory of Efficient Production of Forest Resources, Beijing Forestry University, Haidian District, Beijing, 100083, China; Research Center of Deciduous Oaks, College of Forestry, Beijing Forestry University, Haidian District, Beijing, 100083, China; Key Laboratory for Silviculture and Conservation, Ministry of Education, Beijing Forestry University, Haidian District, Beijing, 100083, China
| | - Puyuan Liu
- State Key Laboratory of Efficient Production of Forest Resources, Beijing Forestry University, Haidian District, Beijing, 100083, China; Research Center of Deciduous Oaks, College of Forestry, Beijing Forestry University, Haidian District, Beijing, 100083, China; Key Laboratory for Silviculture and Conservation, Ministry of Education, Beijing Forestry University, Haidian District, Beijing, 100083, China
| | - Yaochen Wang
- State Key Laboratory of Efficient Production of Forest Resources, Beijing Forestry University, Haidian District, Beijing, 100083, China; Research Center of Deciduous Oaks, College of Forestry, Beijing Forestry University, Haidian District, Beijing, 100083, China; Key Laboratory for Silviculture and Conservation, Ministry of Education, Beijing Forestry University, Haidian District, Beijing, 100083, China
| | - Tong Xu
- State Key Laboratory of Efficient Production of Forest Resources, Beijing Forestry University, Haidian District, Beijing, 100083, China; Research Center of Deciduous Oaks, College of Forestry, Beijing Forestry University, Haidian District, Beijing, 100083, China; Key Laboratory for Silviculture and Conservation, Ministry of Education, Beijing Forestry University, Haidian District, Beijing, 100083, China
| | - Jinjin Li
- State Key Laboratory of Efficient Production of Forest Resources, Beijing Forestry University, Haidian District, Beijing, 100083, China; Research Center of Deciduous Oaks, College of Forestry, Beijing Forestry University, Haidian District, Beijing, 100083, China; Key Laboratory for Silviculture and Conservation, Ministry of Education, Beijing Forestry University, Haidian District, Beijing, 100083, China
| | - Ziqi Pei
- State Key Laboratory of Efficient Production of Forest Resources, Beijing Forestry University, Haidian District, Beijing, 100083, China; Research Center of Deciduous Oaks, College of Forestry, Beijing Forestry University, Haidian District, Beijing, 100083, China; Key Laboratory for Silviculture and Conservation, Ministry of Education, Beijing Forestry University, Haidian District, Beijing, 100083, China
| | - Yuhao Zhang
- College of Grassland Sciences, Beijing Forestry University, Haidian District, Beijing, 100083, China
| | - Guolei Li
- State Key Laboratory of Efficient Production of Forest Resources, Beijing Forestry University, Haidian District, Beijing, 100083, China; Research Center of Deciduous Oaks, College of Forestry, Beijing Forestry University, Haidian District, Beijing, 100083, China; Key Laboratory for Silviculture and Conservation, Ministry of Education, Beijing Forestry University, Haidian District, Beijing, 100083, China.
| | - Qinsong Yang
- State Key Laboratory of Efficient Production of Forest Resources, Beijing Forestry University, Haidian District, Beijing, 100083, China; Research Center of Deciduous Oaks, College of Forestry, Beijing Forestry University, Haidian District, Beijing, 100083, China; Key Laboratory for Silviculture and Conservation, Ministry of Education, Beijing Forestry University, Haidian District, Beijing, 100083, China.
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Wang Y, Huang Y, Chen Y, Yu Z, Liu P, Li G, Yang Q. Genome-Wide Identification of GAST Family Members and Their Potential Roles in Epicotyl Dormancy in Chinese Cork Oak ( Quercus variabilis). PLANTS (BASEL, SWITZERLAND) 2024; 13:1247. [PMID: 38732462 PMCID: PMC11085511 DOI: 10.3390/plants13091247] [Citation(s) in RCA: 0] [Impact Index Per Article: 0] [Reference Citation Analysis] [Abstract] [Key Words] [Grants] [Track Full Text] [Subscribe] [Scholar Register] [Received: 03/27/2024] [Revised: 04/26/2024] [Accepted: 04/28/2024] [Indexed: 05/13/2024]
Abstract
Chinese cork oak (Quercus variabilis Blume) is a widespread tree species with high economic and ecological values. Chinese cork oak exhibits epicotyl dormancy, causing emergence heterogeneity and affecting the quality of seedling cultivation. Gibberellic acid-stimulated transcript (GAST) is a plant-specific protein family that plays a crucial regulatory role in plant growth, development, and seed germination. However, their evolution in Chinese cork oak and roles in epicotyl dormancy are still unclear. Here, a genome-wide identification of the GAST gene family was conducted in Chinese cork oak. Ten QvGAST genes were identified, and nine of them were expressed in seed. The physicochemical properties and promoter cis-acting elements of the selected Chinese cork oak GAST family genes indicated that the cis-acting elements in the GAST promoter are involved in plant development, hormone response, and stress response. Germinated seeds were subjected to gibberellins (GAs), abscisic acid (ABA), and fluridone treatments to show their response during epicotyl dormancy release. Significant changes in the expression of certain QvGAST genes were observed under different hormone treatments. QvGAST1, QvGAST2, QvGAST3, and QvGAST6 exhibited upregulation in response to gibberellin. QvGAST2 was markedly upregulated during the release of epicotyl dormancy in response to GA. These findings suggested that QvGAST2 might play an important role in epicotyl dormancy release. This study provides a basis for further analysis of the mechanisms underlying the alleviation of epicotyl dormancy in Chinese cork oak by QvGASTs genes.
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Affiliation(s)
- Yaochen Wang
- Research Center of Deciduous Oaks, Beijing Forestry University, Beijing 100083, China; (Y.W.); (Y.H.); (Y.C.); (Z.Y.); (P.L.); (G.L.)
- Deciduous Oak Improvement and Regeneration Innovation Team of State Forestry and Grassland Administration, Beijing Forestry University, Beijing 100083, China
- Key Laboratory for Silviculture and Conservation, Ministry of Education, Beijing Forestry University, Beijing 100083, China
| | - Yifei Huang
- Research Center of Deciduous Oaks, Beijing Forestry University, Beijing 100083, China; (Y.W.); (Y.H.); (Y.C.); (Z.Y.); (P.L.); (G.L.)
- Deciduous Oak Improvement and Regeneration Innovation Team of State Forestry and Grassland Administration, Beijing Forestry University, Beijing 100083, China
- Key Laboratory for Silviculture and Conservation, Ministry of Education, Beijing Forestry University, Beijing 100083, China
| | - Yixin Chen
- Research Center of Deciduous Oaks, Beijing Forestry University, Beijing 100083, China; (Y.W.); (Y.H.); (Y.C.); (Z.Y.); (P.L.); (G.L.)
- Deciduous Oak Improvement and Regeneration Innovation Team of State Forestry and Grassland Administration, Beijing Forestry University, Beijing 100083, China
- Key Laboratory for Silviculture and Conservation, Ministry of Education, Beijing Forestry University, Beijing 100083, China
| | - Zhaowei Yu
- Research Center of Deciduous Oaks, Beijing Forestry University, Beijing 100083, China; (Y.W.); (Y.H.); (Y.C.); (Z.Y.); (P.L.); (G.L.)
- Deciduous Oak Improvement and Regeneration Innovation Team of State Forestry and Grassland Administration, Beijing Forestry University, Beijing 100083, China
- Key Laboratory for Silviculture and Conservation, Ministry of Education, Beijing Forestry University, Beijing 100083, China
| | - Puyuan Liu
- Research Center of Deciduous Oaks, Beijing Forestry University, Beijing 100083, China; (Y.W.); (Y.H.); (Y.C.); (Z.Y.); (P.L.); (G.L.)
- Deciduous Oak Improvement and Regeneration Innovation Team of State Forestry and Grassland Administration, Beijing Forestry University, Beijing 100083, China
- Key Laboratory for Silviculture and Conservation, Ministry of Education, Beijing Forestry University, Beijing 100083, China
| | - Guolei Li
- Research Center of Deciduous Oaks, Beijing Forestry University, Beijing 100083, China; (Y.W.); (Y.H.); (Y.C.); (Z.Y.); (P.L.); (G.L.)
- Deciduous Oak Improvement and Regeneration Innovation Team of State Forestry and Grassland Administration, Beijing Forestry University, Beijing 100083, China
- Key Laboratory for Silviculture and Conservation, Ministry of Education, Beijing Forestry University, Beijing 100083, China
| | - Qinsong Yang
- Research Center of Deciduous Oaks, Beijing Forestry University, Beijing 100083, China; (Y.W.); (Y.H.); (Y.C.); (Z.Y.); (P.L.); (G.L.)
- Deciduous Oak Improvement and Regeneration Innovation Team of State Forestry and Grassland Administration, Beijing Forestry University, Beijing 100083, China
- Key Laboratory for Silviculture and Conservation, Ministry of Education, Beijing Forestry University, Beijing 100083, China
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Kumar V, Srivastava AK, Sytar O, Penna S. Editorial: Plants for future climate: responses and adaptations to combined, multifactorial, and sequential stresses. FRONTIERS IN PLANT SCIENCE 2023; 14:1290649. [PMID: 37900745 PMCID: PMC10613039 DOI: 10.3389/fpls.2023.1290649] [Citation(s) in RCA: 0] [Impact Index Per Article: 0] [Reference Citation Analysis] [Key Words] [Track Full Text] [Subscribe] [Scholar Register] [Received: 09/07/2023] [Accepted: 10/03/2023] [Indexed: 10/31/2023]
Affiliation(s)
- Vinay Kumar
- Department of Biotechnology, Modern College of Arts, Science and Commerce, Savitribai Phule Pune University, Pune, India
| | - Ashish Kumar Srivastava
- Nuclear Agriculture and Biotechnology Division, Bhabha Atomic Research Centre (BARC), Mumbai, India
| | - Oksana Sytar
- Department of Plant Biology, Institute of Biology and Medicine, Taras Shevchenko National University of Kyiv, Kyiv, Ukraine
- Institute of Plant and Environmental Sciences, Slovak University of Agriculture, Nitra, Slovakia
| | - Suprasanna Penna
- Amity Centre for Nuclear Biotechnology, Amity Institute of Biotechnology, Amity University of Maharashtra, Mumbai, India
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Ou X, Wang X, Zhao B, Zhao Y, Liu H, Chang Y, Wang Z, Yang W, Zhang X, Yu K. Metabolome and transcriptome signatures shed light on the anti-obesity effect of Polygonatum sibiricum. FRONTIERS IN PLANT SCIENCE 2023; 14:1181861. [PMID: 37143889 PMCID: PMC10151794 DOI: 10.3389/fpls.2023.1181861] [Citation(s) in RCA: 1] [Impact Index Per Article: 1.0] [Reference Citation Analysis] [Abstract] [Key Words] [Track Full Text] [Figures] [Subscribe] [Scholar Register] [Received: 03/08/2023] [Accepted: 03/27/2023] [Indexed: 05/06/2023]
Abstract
Obesity has become one of the major threats to human health across the globe. The rhizomes of Polygonatum sibiricum have shown promising anti-obesity effect. However, the metabolic and genetic basis mediating this beneficial effect are not fully resolved. It is well known that older rhizomes of P. sibiricum exert stronger pharmacological effects. Here, we performed high-resolution metabolome profiling of P. sibiricum rhizomes at different growth stages, and identified that three candidate anti-obesity metabolites, namely phloretin, linoleic acid and α-linolenic acid, accumulated more in adult rhizomes. To elucidate the genetic basis controlling the accumulation of these metabolites, we performed transcriptome profiling of rhizomes from juvenile and adult P. sibiricum. Through third-generation long-read sequencing, we built a high-quality transcript pool of P. sibiricum, and resolved the genetic pathways involved in the biosynthesis and metabolism of phloretin, linoleic acid and α-linolenic acid. Comparative transcriptome analysis revealed altered expression of the genetic pathways in adult rhizomes, which likely lead to higher accumulation of these candidate metabolites. Overall, we identified several metabolic and genetic signatures related to the anti-obesity effect of P. sibiricum. The metabolic and transcriptional datasets generated in this work could also facilitate future research on other beneficial effects of this medicinal plant.
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Affiliation(s)
- Xiaobin Ou
- Gansu Key Laboratory of Protection and Utilization for Biological Resources and Ecological Restoration, College of Life Sciences and Technology, Longdong University, Qingyang, Gansu, China
- *Correspondence: Xiaobin Ou, ; Xuebin Zhang, ; Ke Yu,
| | - Xiao Wang
- State Key Laboratory of Crop Stress Adaptation and Improvement, Henan Joint International Laboratory for Crop Multi-Omics Research, School of Life Sciences, Henan University, Kaifeng, China
| | - Bing Zhao
- State Key Laboratory of Crop Stress Adaptation and Improvement, Henan Joint International Laboratory for Crop Multi-Omics Research, School of Life Sciences, Henan University, Kaifeng, China
| | - Yi Zhao
- Gansu Key Laboratory of Protection and Utilization for Biological Resources and Ecological Restoration, College of Life Sciences and Technology, Longdong University, Qingyang, Gansu, China
| | - Haiqing Liu
- Gansu Key Laboratory of Protection and Utilization for Biological Resources and Ecological Restoration, College of Life Sciences and Technology, Longdong University, Qingyang, Gansu, China
| | - Yuankai Chang
- School of Life Sciences, Henan University, Kaifeng, China
| | - Zhiwei Wang
- Gansu Key Laboratory of Protection and Utilization for Biological Resources and Ecological Restoration, College of Life Sciences and Technology, Longdong University, Qingyang, Gansu, China
| | - Wenqi Yang
- State Key Laboratory of Crop Stress Adaptation and Improvement, Henan Joint International Laboratory for Crop Multi-Omics Research, School of Life Sciences, Henan University, Kaifeng, China
| | - Xuebin Zhang
- State Key Laboratory of Crop Stress Adaptation and Improvement, Henan Joint International Laboratory for Crop Multi-Omics Research, School of Life Sciences, Henan University, Kaifeng, China
- *Correspondence: Xiaobin Ou, ; Xuebin Zhang, ; Ke Yu,
| | - Ke Yu
- State Key Laboratory of Crop Stress Adaptation and Improvement, Henan Joint International Laboratory for Crop Multi-Omics Research, School of Life Sciences, Henan University, Kaifeng, China
- *Correspondence: Xiaobin Ou, ; Xuebin Zhang, ; Ke Yu,
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Zhang W, Xia L, Peng F, Song C, Manzoor MA, Cai Y, Jin Q. Transcriptomics and metabolomics changes triggered by exogenous 6-benzylaminopurine in relieving epicotyl dormancy of Polygonatum cyrtonema Hua seeds. FRONTIERS IN PLANT SCIENCE 2022; 13:961899. [PMID: 35958203 PMCID: PMC9358440 DOI: 10.3389/fpls.2022.961899] [Citation(s) in RCA: 0] [Impact Index Per Article: 0] [Reference Citation Analysis] [Abstract] [Key Words] [Track Full Text] [Figures] [Subscribe] [Scholar Register] [Received: 06/05/2022] [Accepted: 06/28/2022] [Indexed: 06/15/2023]
Abstract
Polygonatum cyrtonema Hua is one of the most useful herbs in traditional Chinese medicine and widely used in medicinal and edible perennial plant. However, the seeds have the characteristics of epicotyl dormancy. In this study, the molecular basis for relieving epicotyl dormancy of P. cyrtonema seeds under exogenous 6-benzylaminopurine (6-BA) treatment was revealed for the first time through transcriptome and metabolomics analysis. We determined the elongation of epicotyl buds as a critical period for dormancy release and found that the content of trans-zeatin, proline, auxin and gibberellin was higher, while flavonoids and arginine were lower in the treatment group. Transcriptome analysis showed that there were significant differences in gene expression in related pathways, and the expression patterns were highly consistent with the change of metabolites in corresponding pathways. Co-expression analysis showed that cytokinin dehydrogenase of P. cyrtonema (PcCKXs) and pelargonidin in flavonoid biosynthesis, as well as L-proline, L-ornithine, and L-citrulline in arginine and proline metabolism form network modules, indicating that they have related regulatory roles. Above all, our findings provide new insight into the exogenous 6-BA relieving epicotyl dormancy of P. cyrtonema seeds.
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Li H, Teng K, Yue Y, Teng W, Zhang H, Wen H, Wu J, Fan X. Seed Germination Mechanism of Carex rigescens Under Variable Temperature Determinded Using Integrated Single-Molecule Long-Read and Illumina Sequence Analysis. FRONTIERS IN PLANT SCIENCE 2022; 13:818458. [PMID: 35310626 PMCID: PMC8928477 DOI: 10.3389/fpls.2022.818458] [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: 11/19/2021] [Accepted: 02/09/2022] [Indexed: 06/14/2023]
Abstract
The turfgrass species Carex rigescens has broad development and utilization prospects in landscaping construction. However, seed dormancy and a low germination rate have inhibited its application. Furthermore, the molecular mechanisms of seed germination in C. rigescens have not been thoroughly studied. Therefore, in the present study, PacBio full-length transcriptome sequencing combined with Illumina sequencing was employed to elucidate the germination mechanism of C. rigescens seeds under variable temperatures. In general, 156,750 full-length non-chimeric sequences, including those for 62,086 high-quality transcripts, were obtained using single-molecule long read sequencing. In total, 40,810 high-quality non-redundant, 1,675 alternative splicing, 28,393 putative coding sequences, and 1,052 long non-coding RNAs were generated. Based on the newly constructed full-length reference transcriptome, 23,147 differentially expressed genes were identified. We screened four hub genes participating in seed germination using weighted gene co-expression network analysis. Combining these results with the physiological observations, the important roles of sucrose and starch metabolic pathways in germination are further discussed. In conclusion, we report the first full-length transcriptome of C. rigescens, and investigated the physiological and transcriptional mechanisms of seed germination under variable temperatures. Our results provide valuable information for future transcriptional analyses and gene function studies of C. rigescens.
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Affiliation(s)
| | | | | | | | | | | | - Juying Wu
- Beijing Academy of Agriculture and Forestry Sciences, Beijing, China
| | - Xifeng Fan
- Beijing Academy of Agriculture and Forestry Sciences, Beijing, China
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Untargeted Metabolomics Analysis Revealed the Major Metabolites in the Seeds of four Polygonatum Species. MOLECULES (BASEL, SWITZERLAND) 2022; 27:molecules27041445. [PMID: 35209244 PMCID: PMC8874640 DOI: 10.3390/molecules27041445] [Citation(s) in RCA: 4] [Impact Index Per Article: 2.0] [Reference Citation Analysis] [Abstract] [Key Words] [Track Full Text] [Download PDF] [Figures] [Subscribe] [Scholar Register] [Received: 12/17/2021] [Revised: 02/15/2022] [Accepted: 02/16/2022] [Indexed: 11/29/2022]
Abstract
Most Polygonatum species are widely used in China as a source of medicine and food. In this study, a UPLC-QTOF-MS/MS system was used to conduct an untargeted metabolomics analysis and compare the classes and relative contents of metabolites in the seeds of four Polygonatum species: P. sibiricum (Ps), P. cyrtonema (Pc), P. kingianum (Pk), and P. macropodium (Pm). The objectives of this study were to clarify the metabolic profiles of these seeds and to verify their medicinal and nutritional value via comparative analyses. A total of 873 metabolites were identified, including 185 flavonoids, 127 lipids, 105 phenolic acids, and 36 steroids. The comparative analysis of metabolites among Polygonatum seed samples indicated that flavonoids, steroids, and terpenoids were the main differentially abundant compounds. The results of principal component analysis and hierarchical clustering were consistent indicating that the metabolites in Ps and Pm are similar, but differ greatly from Pc and Pk. The data generated in this study provide additional evidence of the utility of Polygonatum seeds for producing food and medicine.
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