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1
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Eljebbawi A, Dolata A, Strotmann VI, Stahl Y. Stem cell quiescence and dormancy in plant meristems. JOURNAL OF EXPERIMENTAL BOTANY 2024; 75:6022-6036. [PMID: 38721716 PMCID: PMC11480668 DOI: 10.1093/jxb/erae201] [Citation(s) in RCA: 1] [Impact Index Per Article: 1.0] [Reference Citation Analysis] [Abstract] [Key Words] [MESH Headings] [Grants] [Track Full Text] [Subscribe] [Scholar Register] [Received: 01/17/2024] [Accepted: 05/08/2024] [Indexed: 10/17/2024]
Abstract
Plants exhibit opportunistic developmental patterns, alternating between growth and dormancy in response to external cues. Moreover, quiescence plays a critical role in proper plant growth and development, particularly within the root apical meristem and the shoot apical meristem. In these meristematic tissues, cells with relatively slower mitotic activity are present in the quiescent center and the central zone, respectively. These centers form long-term reservoirs of stem cells maintaining the meristematic stem cell niche, and thus sustaining continuous plant development and adaptation to changing environments. This review explores early observations, structural characteristics, functions, and gene regulatory networks of the root and shoot apical meristems. It also highlights the intricate mechanism of dormancy within the shoot apical meristem. The aim is to contribute to a holistic understanding of quiescence in plants, which is fundamental for the proper growth and environmental response of plants.
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Affiliation(s)
| | | | - Vivien I Strotmann
- Institute for Developmental Genetics, Heinrich-Heine University, Universitätsstr. 1, D-40225 Düsseldorf, Germany
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Ren H, Ou Q, Pu Q, Lou Y, Yang X, Han Y, Liu S. Comprehensive Review on Bimolecular Fluorescence Complementation and Its Application in Deciphering Protein-Protein Interactions in Cell Signaling Pathways. Biomolecules 2024; 14:859. [PMID: 39062573 PMCID: PMC11274695 DOI: 10.3390/biom14070859] [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: 06/24/2024] [Revised: 07/14/2024] [Accepted: 07/15/2024] [Indexed: 07/28/2024] Open
Abstract
Signaling pathways are responsible for transmitting information between cells and regulating cell growth, differentiation, and death. Proteins in cells form complexes by interacting with each other through specific structural domains, playing a crucial role in various biological functions and cell signaling pathways. Protein-protein interactions (PPIs) within cell signaling pathways are essential for signal transmission and regulation. The spatiotemporal features of PPIs in signaling pathways are crucial for comprehending the regulatory mechanisms of signal transduction. Bimolecular fluorescence complementation (BiFC) is one kind of imaging tool for the direct visualization of PPIs in living cells and has been widely utilized to uncover novel PPIs in various organisms. BiFC demonstrates significant potential for application in various areas of biological research, drug development, disease diagnosis and treatment, and other related fields. This review systematically summarizes and analyzes the technical advancement of BiFC and its utilization in elucidating PPIs within established cell signaling pathways, including TOR, PI3K/Akt, Wnt/β-catenin, NF-κB, and MAPK. Additionally, it explores the application of this technology in revealing PPIs within the plant hormone signaling pathways of ethylene, auxin, Gibberellin, and abscisic acid. Using BiFC in conjunction with CRISPR-Cas9, live-cell imaging, and ultra-high-resolution microscopy will enhance our comprehension of PPIs in cell signaling pathways.
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Affiliation(s)
| | | | | | | | | | | | - Shiping Liu
- State Key Laboratory of Resource Insects, Southwest University, Chongqing 400716, China; (H.R.); (Q.O.); (Q.P.); (Y.L.); (X.Y.); (Y.H.)
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Mao Y, Yuan Y, Gao Y, Zeng L, Fan S, Luo J, Sun D. A tree peony RING-H2 finger protein, PsATL33, plays an essential role in cold-induced bud dormancy release by regulating gibberellin content. FRONTIERS IN PLANT SCIENCE 2024; 15:1395530. [PMID: 38887463 PMCID: PMC11180761 DOI: 10.3389/fpls.2024.1395530] [Citation(s) in RCA: 0] [Impact Index Per Article: 0] [Reference Citation Analysis] [Abstract] [Key Words] [Track Full Text] [Figures] [Subscribe] [Scholar Register] [Received: 03/04/2024] [Accepted: 05/16/2024] [Indexed: 06/20/2024]
Abstract
Bud dormancy is crucial for woody perennial plants to resist low-temperature stress in winter. However, the molecular regulatory mechanisms underlying bud dormancy release are largely unclear. Here, a tree peony (Paeonia suffruticosa) transcript ARABIDOPSIS TOXICOS EN LEVADURA 33 (PsATL33), encoding a RING-H2 finger protein, was selected from previously generated RNA sequencing data of chilling-treated buds. The objective of this study is to investigate the role of PsATL33 in the regulation of cold-induced bud dormancy release. Subcellular localization assay revealed that PsATL33 was localized to the nucleus and plasma membrane. Reverse transcription-quantitative PCR analysis showed that PsATL33 was dramatically upregulated during cold-triggered bud dormancy release. Exogenous treatments with gibberellin (GA3) increased, but abscisic acid (ABA) inhibited the transcription of PsATL33. Ectopic transformation assay indicated that overexpression of PsATL33 in petunia promoted seed germination, plant growth, and axillary bud break. Silencing of PsATL33 in tree peony through virus-induced gene silencing assay delayed bud dormancy release. tobacco rattle virus (TRV)-PsATL33-infected buds exhibited reduced expression levels of dormancy break-related genes EARLY BUD-BREAK 1 (PsEBB1) and CARBOXYLESTERASE 15 (PsCXE15). Silencing of PsATL33 decreased the accumulation of bioactive GAs, GA1 and GA3, rather than ABA. Transcript levels of several genes involved in GA biosynthesis and signaling, including GA20-OXIDASE 1 (PsGA20ox1), GA3-OXIDASE 1 (PsGA3ox1), PsGA3ox3, GA2-OXIDASE 1 (PsGA2ox1), and GA-INSENSITIVE 1A (PsGAI1A), were changed by PsATL33 silencing. Taken together, our data suggest that PsATL33 functions as a positive regulator of cold-induced bud dormancy release by modulating GA production.
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Affiliation(s)
- Yanxiang Mao
- College of Landscape Architecture and Arts, Northwest A&F University, Yangling, Shaanxi, China
- National Engineering Technology Research Center for Oil Peony, Northwest A&F University, Yangling, Shaanxi, China
| | - Yanping Yuan
- College of Landscape Architecture and Arts, Northwest A&F University, Yangling, Shaanxi, China
- National Engineering Technology Research Center for Oil Peony, Northwest A&F University, Yangling, Shaanxi, China
| | - Yeshen Gao
- College of Landscape Architecture and Arts, Northwest A&F University, Yangling, Shaanxi, China
| | - Lingling Zeng
- College of Landscape Architecture and Arts, Northwest A&F University, Yangling, Shaanxi, China
| | - Siyu Fan
- College of Landscape Architecture and Arts, Northwest A&F University, Yangling, Shaanxi, China
- National Engineering Technology Research Center for Oil Peony, Northwest A&F University, Yangling, Shaanxi, China
| | - Jianrang Luo
- College of Landscape Architecture and Arts, Northwest A&F University, Yangling, Shaanxi, China
- National Engineering Technology Research Center for Oil Peony, Northwest A&F University, Yangling, Shaanxi, China
| | - Daoyang Sun
- College of Landscape Architecture and Arts, Northwest A&F University, Yangling, Shaanxi, China
- National Engineering Technology Research Center for Oil Peony, Northwest A&F University, Yangling, Shaanxi, China
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Zhang K, Wang X, Chen X, Zhang R, Guo J, Wang Q, Li D, Shao L, Shi X, Han J, Liu Z, Xia Y, Zhang J. Establishment of a Homologous Silencing System with Intact-Plant Infiltration and Minimized Operation for Studying Gene Function in Herbaceous Peonies. Int J Mol Sci 2024; 25:4412. [PMID: 38673996 PMCID: PMC11050706 DOI: 10.3390/ijms25084412] [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: 01/29/2024] [Revised: 04/04/2024] [Accepted: 04/13/2024] [Indexed: 04/28/2024] Open
Abstract
Gene function verification is a crucial step in studying the molecular mechanisms regulating various plant life activities. However, a stable and efficient homologous genetic transgenic system for herbaceous peonies has not been established. In this study, using virus-induced gene silencing technology (VIGS), a highly efficient homologous transient verification system with distinctive advantages was proposed, which not only achieves true "intact-plant" infiltration but also minimizes the operation. One-year-old roots of the representative species, Paeonia lactiflora Pall., were used as the materials; prechilling (4 °C) treatment for 3-5 weeks was applied as a critical precondition for P. lactiflora to acquire a certain chilling accumulation. A dormancy-related gene named HOMEOBOX PROTEIN 31 (PlHB31), believed to negatively regulate bud endodormancy release (BER), was chosen as the target gene in this study. GFP fluorescence was detected in directly infiltrated and newly developed roots and buds; the transgenic plantlets exhibited remarkably earlier budbreak, and PlHB31 was significantly downregulated in silenced plantlets. This study established a homologous transient silencing system featuring intact-plant infiltration and minimized manipulation for gene function research, and also offers technical support and serves as a theoretical basis for gene function discovery in numerous other geophytes.
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Affiliation(s)
- Kaijing Zhang
- Genomics and Genetic Engineering Laboratory of Ornamental Plants, Department of Horticulture, Institute of Landscape Architecture, College of Agriculture and Biotechnology, Zhejiang University, Hangzhou 310058, China; (K.Z.); (X.W.); (X.C.); (R.Z.); (J.G.); (Q.W.); (D.L.); (L.S.); (J.H.); (Y.X.)
| | - Xiaobin Wang
- Genomics and Genetic Engineering Laboratory of Ornamental Plants, Department of Horticulture, Institute of Landscape Architecture, College of Agriculture and Biotechnology, Zhejiang University, Hangzhou 310058, China; (K.Z.); (X.W.); (X.C.); (R.Z.); (J.G.); (Q.W.); (D.L.); (L.S.); (J.H.); (Y.X.)
| | - Xiaoxuan Chen
- Genomics and Genetic Engineering Laboratory of Ornamental Plants, Department of Horticulture, Institute of Landscape Architecture, College of Agriculture and Biotechnology, Zhejiang University, Hangzhou 310058, China; (K.Z.); (X.W.); (X.C.); (R.Z.); (J.G.); (Q.W.); (D.L.); (L.S.); (J.H.); (Y.X.)
| | - Runlong Zhang
- Genomics and Genetic Engineering Laboratory of Ornamental Plants, Department of Horticulture, Institute of Landscape Architecture, College of Agriculture and Biotechnology, Zhejiang University, Hangzhou 310058, China; (K.Z.); (X.W.); (X.C.); (R.Z.); (J.G.); (Q.W.); (D.L.); (L.S.); (J.H.); (Y.X.)
| | - Junhong Guo
- Genomics and Genetic Engineering Laboratory of Ornamental Plants, Department of Horticulture, Institute of Landscape Architecture, College of Agriculture and Biotechnology, Zhejiang University, Hangzhou 310058, China; (K.Z.); (X.W.); (X.C.); (R.Z.); (J.G.); (Q.W.); (D.L.); (L.S.); (J.H.); (Y.X.)
| | - Qiyao Wang
- Genomics and Genetic Engineering Laboratory of Ornamental Plants, Department of Horticulture, Institute of Landscape Architecture, College of Agriculture and Biotechnology, Zhejiang University, Hangzhou 310058, China; (K.Z.); (X.W.); (X.C.); (R.Z.); (J.G.); (Q.W.); (D.L.); (L.S.); (J.H.); (Y.X.)
| | - Danqing Li
- Genomics and Genetic Engineering Laboratory of Ornamental Plants, Department of Horticulture, Institute of Landscape Architecture, College of Agriculture and Biotechnology, Zhejiang University, Hangzhou 310058, China; (K.Z.); (X.W.); (X.C.); (R.Z.); (J.G.); (Q.W.); (D.L.); (L.S.); (J.H.); (Y.X.)
| | - Lingmei Shao
- Genomics and Genetic Engineering Laboratory of Ornamental Plants, Department of Horticulture, Institute of Landscape Architecture, College of Agriculture and Biotechnology, Zhejiang University, Hangzhou 310058, China; (K.Z.); (X.W.); (X.C.); (R.Z.); (J.G.); (Q.W.); (D.L.); (L.S.); (J.H.); (Y.X.)
| | - Xiaohua Shi
- Zhejiang Institute of Landscape Plants and Flowers, Hangzhou 311251, China;
| | - Jingtong Han
- Genomics and Genetic Engineering Laboratory of Ornamental Plants, Department of Horticulture, Institute of Landscape Architecture, College of Agriculture and Biotechnology, Zhejiang University, Hangzhou 310058, China; (K.Z.); (X.W.); (X.C.); (R.Z.); (J.G.); (Q.W.); (D.L.); (L.S.); (J.H.); (Y.X.)
| | - Zhiyang Liu
- Harbin Academy of Agricultural Sciences, Harbin 150029, China;
| | - Yiping Xia
- Genomics and Genetic Engineering Laboratory of Ornamental Plants, Department of Horticulture, Institute of Landscape Architecture, College of Agriculture and Biotechnology, Zhejiang University, Hangzhou 310058, China; (K.Z.); (X.W.); (X.C.); (R.Z.); (J.G.); (Q.W.); (D.L.); (L.S.); (J.H.); (Y.X.)
| | - Jiaping Zhang
- Genomics and Genetic Engineering Laboratory of Ornamental Plants, Department of Horticulture, Institute of Landscape Architecture, College of Agriculture and Biotechnology, Zhejiang University, Hangzhou 310058, China; (K.Z.); (X.W.); (X.C.); (R.Z.); (J.G.); (Q.W.); (D.L.); (L.S.); (J.H.); (Y.X.)
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Zhang T, Wang X, Yuan Y, Zhu S, Liu C, Zhang Y, Gai S. PsmiR159b- PsMYB65 module functions in the resumption of bud growth after endodormancy by affecting the cell cycle in tree peony. HORTICULTURE RESEARCH 2024; 11:uhae052. [PMID: 38638681 PMCID: PMC11025381 DOI: 10.1093/hr/uhae052] [Citation(s) in RCA: 0] [Impact Index Per Article: 0] [Reference Citation Analysis] [Abstract] [Grants] [Track Full Text] [Figures] [Subscribe] [Scholar Register] [Received: 09/28/2023] [Accepted: 02/16/2024] [Indexed: 04/20/2024]
Abstract
Bud endodormancy in perennial plants is a sophisticated system that adapts to seasonal climatic changes. Growth-promoting signals such as low temperature and gibberellins (GAs) are crucial for facilitating budbreak following endodormancy release (EDR). However, the regulatory mechanisms underlying GA-mediated budbreak in tree peony (Paeonia suffruticosa) remain unclear. In tree peony, the expression of PsmiR159b among three differentially expressed miR159 members was inhibited with the prolonged chilling, and overexpression of PsMIR159b delayed budbreak, whereas silencing PsmiR159b promoted budbreak after dormancy. PsMYB65, a downstream transcription factor in the GA pathway, was induced by prolonged chilling and exogenous GA3 treatments. PsMYB65 was identified as a target of PsmiR159b, and promoted budbreak in tree peony. RNA-seq of PsMYB65-slienced buds revealed significant enrichment in the GO terms regulation of 'cell cycle' and 'DNA replication' among differentially expressed genes. Yeast one-hybrid and electrophoretic mobility shift assays demonstrated that PsMYB65 directly bound to the promoter of the type-D cyclin gene PsCYCD3;1. Dual-luciferase reporter assay indicated that PsMYB65 positively regulate PsCYCD3;1 expression, suggesting that miR159b-PsMYB65 module contributes to budbreak by influencing the cell cycle. Our findings revealed that the PsmiR159b-PsMYB65 module functioned in budbreak after dormancy by regulating cell proliferation, providing valuable insights into the endodormancy release regulation mechanism.
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Affiliation(s)
- Tao Zhang
- College of Life Sciences, Qingdao Agricultural University, Qingdao, 266109, China
- University Key Laboratory of Plant Biotechnology in Shandong Province, Qingdao, 266109, China
- Department of Ornamental Horticulture, College of Horticulture, China Agricultural University, Beijing 100193, China
| | - Xinyu Wang
- College of Life Sciences, Qingdao Agricultural University, Qingdao, 266109, China
- University Key Laboratory of Plant Biotechnology in Shandong Province, Qingdao, 266109, China
| | - Yanchao Yuan
- College of Life Sciences, Qingdao Agricultural University, Qingdao, 266109, China
- University Key Laboratory of Plant Biotechnology in Shandong Province, Qingdao, 266109, China
| | - Shoujie Zhu
- College of Life Sciences, Qingdao Agricultural University, Qingdao, 266109, China
- University Key Laboratory of Plant Biotechnology in Shandong Province, Qingdao, 266109, China
| | - Chunying Liu
- College of Life Sciences, Qingdao Agricultural University, Qingdao, 266109, China
- University Key Laboratory of Plant Biotechnology in Shandong Province, Qingdao, 266109, China
| | - Yuxi Zhang
- College of Life Sciences, Qingdao Agricultural University, Qingdao, 266109, China
- University Key Laboratory of Plant Biotechnology in Shandong Province, Qingdao, 266109, China
| | - Shupeng Gai
- College of Life Sciences, Qingdao Agricultural University, Qingdao, 266109, China
- University Key Laboratory of Plant Biotechnology in Shandong Province, Qingdao, 266109, China
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Yuan Y, Zeng L, Kong D, Mao Y, Xu Y, Wang M, Zhao Y, Jiang CZ, Zhang Y, Sun D. Abscisic acid-induced transcription factor PsMYB306 negatively regulates tree peony bud dormancy release. PLANT PHYSIOLOGY 2024; 194:2449-2471. [PMID: 38206196 PMCID: PMC10980420 DOI: 10.1093/plphys/kiae014] [Citation(s) in RCA: 0] [Impact Index Per Article: 0] [Reference Citation Analysis] [Abstract] [MESH Headings] [Grants] [Track Full Text] [Subscribe] [Scholar Register] [Received: 11/08/2023] [Revised: 11/08/2023] [Accepted: 12/02/2023] [Indexed: 01/12/2024]
Abstract
Bud dormancy is a crucial strategy for perennial plants to withstand adverse winter conditions. However, the regulatory mechanism of bud dormancy in tree peony (Paeonia suffruticosa) remains largely unknown. Here, we observed dramatically reduced and increased accumulation of abscisic acid (ABA) and bioactive gibberellins (GAs) GA1 and GA3, respectively, during bud endodormancy release of tree peony under prolonged chilling treatment. An Illumina RNA sequencing study was performed to identify potential genes involved in the bud endodormancy regulation in tree peony. Correlation matrix, principal component, and interaction network analyses identified a downregulated MYB transcription factor gene, PsMYB306, the expression of which positively correlated with 9-CIS-EPOXYCAROTENOID DIOXYGENASE 3 (PsNCED3) expression. Protein modeling analysis revealed 4 residues within the R2R3 domain of PsMYB306 to possess DNA binding capability. Transcription of PsMYB306 was increased by ABA treatment. Overexpression of PsMYB306 in petunia (Petunia hybrida) inhibited seed germination and plant growth, concomitant with elevated ABA and decreased GA contents. Silencing of PsMYB306 accelerated cold-triggered tree peony bud burst and influenced the production of ABA and GAs and the expression of their biosynthetic genes. ABA application reduced bud dormancy release and transcription of ENT-KAURENOIC ACID OXIDASE 1 (PsKAO1), GA20-OXIDASE 1 (PsGA20ox1), and GA3-OXIDASE 1 (PsGA3ox1) associated with GA biosynthesis in PsMYB306-silenced buds. In vivo and in vitro binding assays confirmed that PsMYB306 specifically transactivated the promoter of PsNCED3. Silencing of PsNCED3 also promoted bud break and growth. Altogether, our findings suggest that PsMYB306 negatively modulates cold-induced bud endodormancy release by regulating ABA production.
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Affiliation(s)
- Yanping Yuan
- College of Landscape Architecture and Arts, Northwest A&F University, Yangling, Shaanxi 712100, China
| | - Lingling Zeng
- College of Landscape Architecture and Arts, Northwest A&F University, Yangling, Shaanxi 712100, China
| | - Derong Kong
- College of Landscape Architecture and Arts, Northwest A&F University, Yangling, Shaanxi 712100, China
| | - Yanxiang Mao
- College of Landscape Architecture and Arts, Northwest A&F University, Yangling, Shaanxi 712100, China
| | - Yingru Xu
- College of Landscape Architecture and Arts, Northwest A&F University, Yangling, Shaanxi 712100, China
| | - Meiling Wang
- College of Landscape Architecture and Arts, Northwest A&F University, Yangling, Shaanxi 712100, China
| | - Yike Zhao
- College of Landscape Architecture and Arts, Northwest A&F University, Yangling, Shaanxi 712100, China
| | - Cai-Zhong Jiang
- Department of Plant Sciences, University of California, Davis, Davis, CA 95616, USA
- Crops Pathology and Genetics Research Unit, USDA-ARS, Davis, CA 95616, USA
| | - Yanlong Zhang
- College of Landscape Architecture and Arts, Northwest A&F University, Yangling, Shaanxi 712100, China
| | - Daoyang Sun
- College of Landscape Architecture and Arts, Northwest A&F University, Yangling, Shaanxi 712100, China
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Gai W, Liu C, Yang M, Li F, Xin H, Gai S. Calcium signaling facilitates chilling- and GA- induced dormancy release in tree peony. FRONTIERS IN PLANT SCIENCE 2024; 15:1362804. [PMID: 38567129 PMCID: PMC10985203 DOI: 10.3389/fpls.2024.1362804] [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: 02/29/2024] [Indexed: 04/04/2024]
Abstract
Calcium plays a crucial role in plant growth and development, yet little is known about its function in endodormancy regulation. Tree peony (Paeonia suffruticosa), characterized by compound buds and large flowers, is well-known for its ornamental and medicinal value. To break bud dormancy release is a prerequisite of flowering and forcing culture, particularly during the Spring Festival. In this study, the Ca2+ chelator EGTA and Ca2+ channel blocker LaCl3 were applied, resulting in a significant delay in budburst during both chilling- and gibberellin (GA)- induced dormancy release in a dosage-dependent manner. As expected, the retardation of bud break was recovered by the supplementation of 30 mM CaCl2, indicating a facilitating role of calcium in dormancy release. Accordingly, several calcium-sensor-encoding genes including Calmodulin (CaM) and Ca2+-dependent protein kinases (CDPKs) were significantly up-regulated by prolonged chilling and exogenous GAs. Ultrastructure observations revealed a decline in starch grains and the reopening of transport corridors following prolonged chilling. Calcium deposits were abundant in the cell walls and intercellular spaces at the early dormant stage but were enriched in the cytosol and nucleus before dormancy release. Additionally, several genes associated with dormancy release, including EBB1, EBB3, SVP, GA20ox, RGL1, BG6, and BG9, were differentially expressed after calcium blocking and recovery treatments, indicating that calcium might partially modulate dormancy release through GA and ABA pathways. Our findings provide novel insights into the mechanism of dormancy release and offer potential benefits for improving and perfecting forcing culture technology in tree peonies.
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Affiliation(s)
- Weiling Gai
- College of Agriculture, Qingdao Agricultural University, Qingdao, China
- University Key Laboratory of Plant Biotechnology in Shandong Province, Qingdao, China
| | - Chunying Liu
- University Key Laboratory of Plant Biotechnology in Shandong Province, Qingdao, China
- College of Life Sciences, Qingdao Agricultural University, Qingdao, China
| | - Mengjie Yang
- University Key Laboratory of Plant Biotechnology in Shandong Province, Qingdao, China
- College of Life Sciences, Qingdao Agricultural University, Qingdao, China
| | - Feng Li
- College of Landscape Architecture and Forestry, Qingdao Agricultural University, Qingdao, China
| | - Hua Xin
- University Key Laboratory of Plant Biotechnology in Shandong Province, Qingdao, China
- College of Life Sciences, Qingdao Agricultural University, Qingdao, China
| | - Shupeng Gai
- University Key Laboratory of Plant Biotechnology in Shandong Province, Qingdao, China
- College of Life Sciences, Qingdao Agricultural University, Qingdao, China
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Zhang M, Cheng W, Wang J, Cheng T, Lin X, Zhang Q, Li C. Genome-Wide Identification of Callose Synthase Family Genes and Their Expression Analysis in Floral Bud Development and Hormonal Responses in Prunus mume. PLANTS (BASEL, SWITZERLAND) 2023; 12:4159. [PMID: 38140486 PMCID: PMC10748206 DOI: 10.3390/plants12244159] [Citation(s) in RCA: 0] [Impact Index Per Article: 0] [Reference Citation Analysis] [Abstract] [Key Words] [Grants] [Track Full Text] [Subscribe] [Scholar Register] [Received: 11/13/2023] [Revised: 12/07/2023] [Accepted: 12/10/2023] [Indexed: 12/24/2023]
Abstract
Callose is an important polysaccharide composed of beta-1,3-glucans and is widely implicated in plant development and defense responses. Callose synthesis is mainly catalyzed by a family of callose synthases, also known as glucan synthase-like (GSL) enzymes. Despite the fact that GSL family genes were studied in a few plant species, their functional roles have not been fully understood in woody perennials. In this study, we identified total of 84 GSL genes in seven plant species and classified them into six phylogenetic clades. An evolutionary analysis revealed different modes of duplication driving the expansion of GSL family genes in monocot and dicot species, with strong purifying selection constraining the protein evolution. We further examined the gene structure, protein sequences, and physiochemical properties of 11 GSL enzymes in Prunus mume and observed strong sequence conservation within the functional domain of PmGSL proteins. However, the exon-intron distribution and protein motif composition are less conservative among PmGSL genes. With a promoter analysis, we detected abundant hormonal responsive cis-acting elements and we inferred the putative transcription factors regulating PmGSLs. To further understand the function of GSL family genes, we analyzed their expression patterns across different tissues, and during the process of floral bud development, pathogen infection, and hormonal responses in Prunus species and identified multiple GSL gene members possibly implicated in the callose deposition associated with bud dormancy cycling, pathogen infection, and hormone signaling. In summary, our study provides a comprehensive understanding of GSL family genes in Prunus species and has laid the foundation for future functional research of callose synthase genes in perennial trees.
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Affiliation(s)
- Man Zhang
- Beijing Key Laboratory of Ornamental Plants Germplasm Innovation & Molecular Breeding, National Engineering Research Center for Floriculture, Beijing Laboratory of Urban and Rural Ecological Environment, Engineering Research Center of Landscape Environment of Ministry of Education, Key Laboratory of Genetics and Breeding in Forest Trees and Ornamental Plants of Ministry of Education, School of Landscape Architecture, Beijing Forestry University, Beijing 100083, China; (M.Z.); (W.C.); (J.W.); (T.C.)
| | - Wenhui Cheng
- Beijing Key Laboratory of Ornamental Plants Germplasm Innovation & Molecular Breeding, National Engineering Research Center for Floriculture, Beijing Laboratory of Urban and Rural Ecological Environment, Engineering Research Center of Landscape Environment of Ministry of Education, Key Laboratory of Genetics and Breeding in Forest Trees and Ornamental Plants of Ministry of Education, School of Landscape Architecture, Beijing Forestry University, Beijing 100083, China; (M.Z.); (W.C.); (J.W.); (T.C.)
| | - Jia Wang
- Beijing Key Laboratory of Ornamental Plants Germplasm Innovation & Molecular Breeding, National Engineering Research Center for Floriculture, Beijing Laboratory of Urban and Rural Ecological Environment, Engineering Research Center of Landscape Environment of Ministry of Education, Key Laboratory of Genetics and Breeding in Forest Trees and Ornamental Plants of Ministry of Education, School of Landscape Architecture, Beijing Forestry University, Beijing 100083, China; (M.Z.); (W.C.); (J.W.); (T.C.)
| | - Tangren Cheng
- Beijing Key Laboratory of Ornamental Plants Germplasm Innovation & Molecular Breeding, National Engineering Research Center for Floriculture, Beijing Laboratory of Urban and Rural Ecological Environment, Engineering Research Center of Landscape Environment of Ministry of Education, Key Laboratory of Genetics and Breeding in Forest Trees and Ornamental Plants of Ministry of Education, School of Landscape Architecture, Beijing Forestry University, Beijing 100083, China; (M.Z.); (W.C.); (J.W.); (T.C.)
| | - Xinlian Lin
- Flower Research Institute, Meizhou Academy of Agriculture and Forestry Sciences, Meizhou 514071, China;
| | - Qixiang Zhang
- Beijing Key Laboratory of Ornamental Plants Germplasm Innovation & Molecular Breeding, National Engineering Research Center for Floriculture, Beijing Laboratory of Urban and Rural Ecological Environment, Engineering Research Center of Landscape Environment of Ministry of Education, Key Laboratory of Genetics and Breeding in Forest Trees and Ornamental Plants of Ministry of Education, School of Landscape Architecture, Beijing Forestry University, Beijing 100083, China; (M.Z.); (W.C.); (J.W.); (T.C.)
| | - Cuiling Li
- Flower Research Institute, Meizhou Academy of Agriculture and Forestry Sciences, Meizhou 514071, China;
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9
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Chen Z, Chen Y, Shi L, Wang L, Li W. Interaction of Phytohormones and External Environmental Factors in the Regulation of the Bud Dormancy in Woody Plants. Int J Mol Sci 2023; 24:17200. [PMID: 38139028 PMCID: PMC10743443 DOI: 10.3390/ijms242417200] [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: 10/27/2023] [Revised: 11/26/2023] [Accepted: 12/04/2023] [Indexed: 12/24/2023] Open
Abstract
Bud dormancy and release are essential phenomena that greatly assist in adapting to adverse growing conditions and promoting the holistic growth and development of perennial plants. The dormancy and release process of buds in temperate perennial trees involves complex interactions between physiological and biochemical processes influenced by various environmental factors, representing a meticulously orchestrated life cycle. In this review, we summarize the role of phytohormones and their crosstalk in the establishment and release of bud dormancy. External environmental factors, such as light and temperature, play a crucial role in regulating bud germination. We also highlight the mechanisms of how light and temperature are involved in the regulation of bud dormancy by modulating phytohormones. Moreover, the role of nutrient factors, including sugar, in regulating bud dormancy is also discussed. This review provides a foundation for enhancing our understanding of plant growth and development patterns, fostering agricultural production, and exploring plant adaptive responses to adversity.
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Affiliation(s)
| | | | | | | | - Weixing Li
- College of Horticulture and Landscape Architecture, Yangzhou University, Yangzhou 225009, China; (Z.C.); (Y.C.); (L.S.); (L.W.)
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