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Liu J, Qiu S, Xue T, Yuan Y. Physiology and transcriptome of Eucommia ulmoides seeds at different germination stages. PLANT SIGNALING & BEHAVIOR 2024; 19:2329487. [PMID: 38493506 PMCID: PMC10950268 DOI: 10.1080/15592324.2024.2329487] [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: 10/13/2023] [Accepted: 01/03/2024] [Indexed: 03/19/2024]
Abstract
E. ulmoides (Eucommia ulmoides) has significant industrial and medicinal value and high market demand. E. ulmoides grows seedlings through sowing. According to previous studies, plant hormones have been shown to regulate seed germination. To understand the relationship between hormones and E. ulmoides seed germination, we focused on examining the changes in various indicators during the germination stage of E. ulmoides seeds. We measured the levels of physiological and hormone indicators in E. ulmoides seeds at different germination stages and found that the levels of abscisic acid (ABA), gibberellin (GA), and indole acetic acid (IAA) significantly varied as the seeds germinated. Furthermore, we confirmed that ABA, GA, and IAA are essential hormones in the germination of E. ulmoides seeds using Gene Ontology and Kyoto Encyclopedia of Genes and Genomics enrichment analyses of the transcriptome. The discovery of hormone-related synthesis pathways in the control group of Eucommia seeds at different germination stages further confirmed this conclusion. This study provides a basis for further research into the regulatory mechanisms of E. ulmoides seeds at different germination stages and the relationship between other seed germination and plant hormones.
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Affiliation(s)
- Jia Liu
- Department of Civil and Architecture and Engineering, Chuzhou University, Chuzhou, Anhui, China
- Anhui Low Carbon Highway Engineering Research Center, Chuzhou University, Anhui, China
| | - Sumei Qiu
- College of Horticulture and Landscape Architecture, Yangzhou University, Yangzhou, China
| | - Tingting Xue
- Department of Civil and Architecture and Engineering, Chuzhou University, Chuzhou, Anhui, China
| | - Yingdan Yuan
- College of Horticulture and Landscape Architecture, Yangzhou University, Yangzhou, China
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Li T, Jia W, Peng S, Guo Y, Liu J, Zhang X, Li P, Zhang H, Xu R. Endogenous cAMP elevation in Brassica napus causes changes in phytohormone levels. PLANT SIGNALING & BEHAVIOR 2024; 19:2310963. [PMID: 38314783 PMCID: PMC10854363 DOI: 10.1080/15592324.2024.2310963] [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: 12/07/2023] [Accepted: 01/22/2024] [Indexed: 02/07/2024]
Abstract
In higher plants, the regulatory roles of cAMP (cyclic adenosine 3',5'-monophosphate) signaling remain elusive until now. Cellular cAMP levels are generally much lower in higher plants than in animals and transiently elevated for triggering downstream signaling events. Moreover, plant adenylate cyclase (AC) activities are found in different moonlighting multifunctional proteins, which may pose additional complications in distinguishing a specific signaling role for cAMP. Here, we have developed rapeseed (Brassica napus L.) transgenic plants that overexpress an inducible plant-origin AC activity for generating high AC levels much like that in animal cells, which served the genetic model disturbing native cAMP signaling as a whole in plants. We found that overexpression of the soluble AC activity had significant impacts on the contents of indole-3-acetic acid (IAA) and stress phytohormones, i.e. jasmonic acid (JA), abscisic acid (ABA), and salicylic acid (SA) in the transgenic plants. Acute induction of the AC activity caused IAA overaccumulation, and upregulation of TAA1 and CYP83B1 in the IAA biosynthesis pathways, but also simultaneously the hyper-induction of PR4 and KIN2 expression indicating activation of JA and ABA signaling pathways. We observed typical overgrowth phenotypes related to IAA excess in the transgenic plants, including significant increases in plant height, internode length, width of leaf blade, petiole length, root length, and fresh shoot biomass, as well as the precocious seed development, as compared to wild-type plants. In addition, we identified a set of 1465 cAMP-responsive genes (CRGs), which are most significantly enriched in plant hormone signal transduction pathway, and function mainly in relevance to hormonal, abiotic and biotic stress responses, as well as growth and development. Collectively, our results support that cAMP elevation impacts phytohormone homeostasis and signaling, and modulates plant growth and development. We proposed that cAMP signaling may be critical in configuring the coordinated regulation of growth and development in higher plants.
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Affiliation(s)
- Tianming Li
- School of Agricultural Sciences, Zhengzhou University, Zhengzhou, Henan, China
- Zhengzhou Research Base, State Key Laboratory of Cotton Biology, Zhengzhou University, Zhengzhou, China
- Center for Excellence in Molecular Plant Sciences, Chinese Academy of Sciences, Shanghai, China
| | - Wenjing Jia
- School of Agricultural Sciences, Zhengzhou University, Zhengzhou, Henan, China
- Zhengzhou Research Base, State Key Laboratory of Cotton Biology, Zhengzhou University, Zhengzhou, China
| | - Song Peng
- School of Agricultural Sciences, Zhengzhou University, Zhengzhou, Henan, China
- Zhengzhou Research Base, State Key Laboratory of Cotton Biology, Zhengzhou University, Zhengzhou, China
| | - Yanhui Guo
- School of Agricultural Sciences, Zhengzhou University, Zhengzhou, Henan, China
- Zhengzhou Research Base, State Key Laboratory of Cotton Biology, Zhengzhou University, Zhengzhou, China
| | - Jinrui Liu
- School of Agricultural Sciences, Zhengzhou University, Zhengzhou, Henan, China
- Zhengzhou Research Base, State Key Laboratory of Cotton Biology, Zhengzhou University, Zhengzhou, China
| | - Xue Zhang
- School of Agricultural Sciences, Zhengzhou University, Zhengzhou, Henan, China
- Zhengzhou Research Base, State Key Laboratory of Cotton Biology, Zhengzhou University, Zhengzhou, China
| | - Panyu Li
- School of Agricultural Sciences, Zhengzhou University, Zhengzhou, Henan, China
- Zhengzhou Research Base, State Key Laboratory of Cotton Biology, Zhengzhou University, Zhengzhou, China
| | - Hanfeng Zhang
- School of Agricultural Sciences, Zhengzhou University, Zhengzhou, Henan, China
- Zhengzhou Research Base, State Key Laboratory of Cotton Biology, Zhengzhou University, Zhengzhou, China
| | - Ruqiang Xu
- School of Agricultural Sciences, Zhengzhou University, Zhengzhou, Henan, China
- Zhengzhou Research Base, State Key Laboratory of Cotton Biology, Zhengzhou University, Zhengzhou, China
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Li P, Xiang Q, Wang Y, Dong X. Characterizing seed dormancy in Epimedium brevicornu Maxim.: Development of novel chill models and determination of dormancy release mechanisms by transcriptomics. BMC PLANT BIOLOGY 2024; 24:757. [PMID: 39112934 PMCID: PMC11308244 DOI: 10.1186/s12870-024-05471-0] [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: 08/05/2023] [Accepted: 07/30/2024] [Indexed: 08/10/2024]
Abstract
PURPOSE Epimedium brevicornu Maxim. is a perennial persistent C3 plant of the genus Epimedium Linn. in the family Berberaceae that exhibits severe physiological and morphological seed dormancy.We placed mature E. brevicornu seeds under nine stratification treatment conditions and explored the mechanisms of influence by combining seed embryo growth status assessment with related metabolic pathways and gene co-expression analysis. RESULTS We identified 3.9 °C as the optimum cold-stratification temperature of E. brevicornu seeds via a chilling unit (CU) model. The best treatment was variable-temperature stratification (10/20 °C, 12/12 h) for 4 months followed by low-temperature stratification (4 °C) for 3 months (4-3). A total of 63801 differentially expressed genes were annotated to 2587 transcription factors (TFs) in 17 clusters in nine treatments (0-0, 0-3, 1-3, 2-3, 3-3, 4-3, 4-2, 4-1, 4-0). Genes specifically highly expressed in the dormancy release treatment group were significantly enriched in embryo development ending in seed dormancy and fatty acid degradation, indicating the importance of these two processes. Coexpression analysis implied that the TF GRF had the most reciprocal relationships with genes, and multiple interactions centred on zf-HD and YABBY as well as on MYB, GRF, and TCP were observed. CONCLUSION In this study, analyses of plant hormone signal pathways and fatty acid degradation pathways revealed changes in key genes during the dormancy release of E. brevicornu seeds, providing evidence for the filtering of E. brevicornu seed dormancy-related genes.
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Affiliation(s)
- Pengshu Li
- College of Agronomy and Biotechnology, China Agricultural University, No. 2, Old Summer Palace West Road, Haidian District, Beijing, 100193, China
- College of Agronomy and Biotechnology, Sanya Institute of China Agricultural University, Sanya, 610101, Hainan, China
| | - Qiuyan Xiang
- College of Agronomy and Biotechnology, China Agricultural University, No. 2, Old Summer Palace West Road, Haidian District, Beijing, 100193, China
| | - Yue Wang
- Shandong Academy of Agricultural Sciences, Jinan, 250100, Shandong, China.
| | - Xuehui Dong
- College of Agronomy and Biotechnology, China Agricultural University, No. 2, Old Summer Palace West Road, Haidian District, Beijing, 100193, China.
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Sharma S, Arpita K, Nirgude M, Srivastava H, Kumar K, Sreevathsa R, Bhattacharya R, Gaikwad K. Genomic insights into cytokinin oxidase/dehydrogenase (CKX) gene family, identification, phylogeny and synteny analysis for its possible role in regulating seed number in Pigeonpea (Cajanus cajan (L.) Millsp.). Int J Biol Macromol 2024; 277:134194. [PMID: 39097061 DOI: 10.1016/j.ijbiomac.2024.134194] [Citation(s) in RCA: 0] [Impact Index Per Article: 0] [Reference Citation Analysis] [Abstract] [Key Words] [Track Full Text] [Journal Information] [Subscribe] [Scholar Register] [Received: 04/29/2024] [Revised: 06/28/2024] [Accepted: 07/25/2024] [Indexed: 08/05/2024]
Abstract
Cytokinin oxidase/dehydrogenase (CKX) regulates cytokinin levels in plants which are vital for plant growth and development. However, there is a paucity of evidence regarding their role in controlling embryo/seed development in pigeonpea. This comprehensive study provides information on the identification and characterization of CKX genes in pigeonpea. A genome-wide analysis identified 18 CKX genes, each with distinct structure, expression patterns, and possible diverse functions. Domain analysis revealed the presence of the sequences including FAD and CK-Binding domain, and subcellular localization analysis showed that almost 50 % of them reside within the nucleus. They were observed to be located unevenly on chromosome numbers 2, 4, 6, 7, and 11 with a majority of them present on the scaffolds. The 8 homologous pairs and various orthologous gene pairs provided further insights into their evolution pattern. Further, SNP/Indels variation in CKX genes and haplotype groups among contrasting genotypes for SNPP (seed number per pod) were analyzed. Spatiotemporal expression analysis revealed the significant expression pattern of CcCKX15, CcCKX17, and CcCKX2 in genotypes carrying low SNPP reiterating their possible role as negative regulators. These genes can be potential targets to undertake seed and biomass improvement in pigeonpea.
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Affiliation(s)
- Sandhya Sharma
- ICAR-National Institute for Plant Biotechnology, New Delhi 110012, India
| | - Kumari Arpita
- ICAR-National Institute for Plant Biotechnology, New Delhi 110012, India
| | - Machindra Nirgude
- ICAR-National Institute for Plant Biotechnology, New Delhi 110012, India
| | - Harsha Srivastava
- ICAR-National Institute for Plant Biotechnology, New Delhi 110012, India
| | - Kuldeep Kumar
- ICAR-National Institute for Plant Biotechnology, New Delhi 110012, India
| | - Rohini Sreevathsa
- ICAR-National Institute for Plant Biotechnology, New Delhi 110012, India
| | | | - Kishor Gaikwad
- ICAR-National Institute for Plant Biotechnology, New Delhi 110012, India.
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He Y, Zhao J, Wang Z. Rice seed germination priming by salicylic acid and the emerging role of phytohormones in anaerobic germination. JOURNAL OF INTEGRATIVE PLANT BIOLOGY 2024; 66:1537-1539. [PMID: 38923381 DOI: 10.1111/jipb.13728] [Citation(s) in RCA: 0] [Impact Index Per Article: 0] [Reference Citation Analysis] [Abstract] [MESH Headings] [Grants] [Track Full Text] [Subscribe] [Scholar Register] [Received: 05/31/2024] [Accepted: 06/04/2024] [Indexed: 06/28/2024]
Abstract
This Commentary examines a recent study that identified peroxisomal cinnamate: CoA ligases as key enzymes for salicylic acid biosynthesis, which promotes submerged germination by releasing the inhibition of rice germination by indole-acetic acid. This study thus provides important information for developing rice varieties suitable for direct seeding.
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Affiliation(s)
- Yongqi He
- The Laboratory of Seed Science and Technology, Guangdong Key Laboratory of Plant Molecular Breeding, South China Agricultural University, Guangzhou, 510642, China
| | - Jia Zhao
- The Laboratory of Seed Science and Technology, Guangdong Key Laboratory of Plant Molecular Breeding, South China Agricultural University, Guangzhou, 510642, China
| | - Zhoufei Wang
- The Laboratory of Seed Science and Technology, Guangdong Key Laboratory of Plant Molecular Breeding, South China Agricultural University, Guangzhou, 510642, China
- Key Laboratory for Enhancing Resource Use Efficiency of Crops in South China, Ministry of Agriculture and Rural Affairs, South China Agricultural University, Guangzhou, 510642, China
- National Engineering Research Center of Plant Space Breeding, South China Agricultural University, Guangzhou, 510642, China
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Gupta S, Hrdlička J, Kulkarni M, Doležalova I, Pěnčík A, Van Staden J, Novák O, Doležal K. Karrikinolide1 (KAR 1), a Bioactive Compound from Smoke, Improves the Germination of Morphologically Dormant Apium graveolens L. Seeds by Reducing Indole-3-Acetic Acid (IAA) Levels. PLANTS (BASEL, SWITZERLAND) 2024; 13:2096. [PMID: 39124214 PMCID: PMC11314525 DOI: 10.3390/plants13152096] [Citation(s) in RCA: 0] [Impact Index Per Article: 0] [Reference Citation Analysis] [Abstract] [Key Words] [Track Full Text] [Subscribe] [Scholar Register] [Received: 06/17/2024] [Revised: 07/15/2024] [Accepted: 07/17/2024] [Indexed: 08/12/2024]
Abstract
Smoke-water (SW) and Karrikinolide1 (KAR1) release dormancy and improve seed germination in many plant species. Therefore, we tested SW (1:2500 v/v) and KAR1 (10-7 M) to break the morphological dormancy of celery cultivar (Apium graveolens L.). In the first trial, seeds were subjected to a 21-day incubation period at 20 °C with SW and KAR1 applied as single treatments. KAR1 showed significantly improved germination (30.7%) as compared to SW (17.2%) and a water control (14.7%). In seed soaking experiments, SW, KAR1, and gibberellic acid (GA3) treatments showed higher germination percentages than the water control after 3 and 6 h of soaking. However, prolonged soaking (12 h) reduced germination percentages for all treatments, indicating a detrimental effect. Analysis of KAR1 content dynamics in 7-day- and 21-day-old celery seeds indicated its prolonged effects on germination and dormancy alleviation. Phytohormones, including auxins in 7-day-old and cytokinins in 7-day- and 21-day-old celery seedlings, along with their precursors and metabolites, were analyzed using ultra-high-performance liquid chromatography-tandem mass spectrometry (UHPLC-MS/MS) after treatment with KAR1 and SW. The analysis of auxin levels in 7-day-old seeds revealed a negative correlation between seed germination and auxin (indole-3-acetic acid, IAA) content. Notably, it was found that KAR1-treated seeds significantly reduced IAA levels in all treatments. SW and KAR1 did not significantly affect cytokinin levels during celery germination except for N6-Isopentenyladenine. Hence, further research is needed to understand their precise role in celery seed germination. This work will improve our understanding of the role of bioactive compounds from plant-derived smoke and how they regulate hormonal responses and improve germination efficiency in celery.
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Affiliation(s)
- Shubhpriya Gupta
- Laboratory of Growth Regulators, Faculty of Science, Palacký University & Institute of Experimental Botany AS CR, v.v.i, Šlechtitelů 11, 78371 Olomouc, Czech Republic; (J.H.); (I.D.); (A.P.); (O.N.); (K.D.)
- Research Centre for Plant Growth and Development, School of Life Sciences, University of KwaZulu-Natal Pietermaritzburg, Private Bag X01, Scottsville 3209, South Africa; (M.K.); (J.V.S.)
| | - Jakub Hrdlička
- Laboratory of Growth Regulators, Faculty of Science, Palacký University & Institute of Experimental Botany AS CR, v.v.i, Šlechtitelů 11, 78371 Olomouc, Czech Republic; (J.H.); (I.D.); (A.P.); (O.N.); (K.D.)
- Department of Chemical Biology, Faculty of Science, Palacký University, Šlechtitelů 11, 78371 Olomouc, Czech Republic
| | - Manoj Kulkarni
- Research Centre for Plant Growth and Development, School of Life Sciences, University of KwaZulu-Natal Pietermaritzburg, Private Bag X01, Scottsville 3209, South Africa; (M.K.); (J.V.S.)
| | - Ivana Doležalova
- Laboratory of Growth Regulators, Faculty of Science, Palacký University & Institute of Experimental Botany AS CR, v.v.i, Šlechtitelů 11, 78371 Olomouc, Czech Republic; (J.H.); (I.D.); (A.P.); (O.N.); (K.D.)
- Department of Genetic Resources for Vegetables, Medicinal and Special Plants, Crop Research Institute, Šlechtitelů 29, 78371 Olomouc, Czech Republic
| | - Aleš Pěnčík
- Laboratory of Growth Regulators, Faculty of Science, Palacký University & Institute of Experimental Botany AS CR, v.v.i, Šlechtitelů 11, 78371 Olomouc, Czech Republic; (J.H.); (I.D.); (A.P.); (O.N.); (K.D.)
| | - Johannes Van Staden
- Research Centre for Plant Growth and Development, School of Life Sciences, University of KwaZulu-Natal Pietermaritzburg, Private Bag X01, Scottsville 3209, South Africa; (M.K.); (J.V.S.)
| | - Ondřej Novák
- Laboratory of Growth Regulators, Faculty of Science, Palacký University & Institute of Experimental Botany AS CR, v.v.i, Šlechtitelů 11, 78371 Olomouc, Czech Republic; (J.H.); (I.D.); (A.P.); (O.N.); (K.D.)
| | - Karel Doležal
- Laboratory of Growth Regulators, Faculty of Science, Palacký University & Institute of Experimental Botany AS CR, v.v.i, Šlechtitelů 11, 78371 Olomouc, Czech Republic; (J.H.); (I.D.); (A.P.); (O.N.); (K.D.)
- Department of Chemical Biology, Faculty of Science, Palacký University, Šlechtitelů 11, 78371 Olomouc, Czech Republic
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Omelyanchuk NA, Lavrekha VV, Bogomolov AG, Dolgikh VA, Sidorenko AD, Zemlyanskaya EV. Computational Reconstruction of the Transcription Factor Regulatory Network Induced by Auxin in Arabidopsis thaliana L. PLANTS (BASEL, SWITZERLAND) 2024; 13:1905. [PMID: 39065433 PMCID: PMC11280061 DOI: 10.3390/plants13141905] [Citation(s) in RCA: 0] [Impact Index Per Article: 0] [Reference Citation Analysis] [Abstract] [Key Words] [Grants] [Track Full Text] [Subscribe] [Scholar Register] [Received: 06/01/2024] [Revised: 07/05/2024] [Accepted: 07/06/2024] [Indexed: 07/28/2024]
Abstract
In plant hormone signaling, transcription factor regulatory networks (TFRNs), which link the master transcription factors to the biological processes under their control, remain insufficiently characterized despite their crucial function. Here, we identify a TFRN involved in the response to the key plant hormone auxin and define its impact on auxin-driven biological processes. To reconstruct the TFRN, we developed a three-step procedure, which is based on the integrated analysis of differentially expressed gene lists and a representative collection of transcription factor binding profiles. Its implementation is available as a part of the CisCross web server. With the new method, we distinguished two transcription factor subnetworks. The first operates before auxin treatment and is switched off upon hormone application, the second is switched on by the hormone. Moreover, we characterized the functioning of the auxin-regulated TFRN in control of chlorophyll and lignin biosynthesis, abscisic acid signaling, and ribosome biogenesis.
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Affiliation(s)
- Nadya A. Omelyanchuk
- Department of Systems Biology, Institute of Cytology and Genetics SB RAS, 630090 Novosibirsk, Russia; (N.A.O.); (V.V.L.); (A.G.B.); (V.A.D.); (A.D.S.)
| | - Viktoriya V. Lavrekha
- Department of Systems Biology, Institute of Cytology and Genetics SB RAS, 630090 Novosibirsk, Russia; (N.A.O.); (V.V.L.); (A.G.B.); (V.A.D.); (A.D.S.)
- Department of Natural Sciences, Novosibirsk State University, 630090 Novosibirsk, Russia
| | - Anton G. Bogomolov
- Department of Systems Biology, Institute of Cytology and Genetics SB RAS, 630090 Novosibirsk, Russia; (N.A.O.); (V.V.L.); (A.G.B.); (V.A.D.); (A.D.S.)
| | - Vladislav A. Dolgikh
- Department of Systems Biology, Institute of Cytology and Genetics SB RAS, 630090 Novosibirsk, Russia; (N.A.O.); (V.V.L.); (A.G.B.); (V.A.D.); (A.D.S.)
- Department of Natural Sciences, Novosibirsk State University, 630090 Novosibirsk, Russia
| | - Aleksandra D. Sidorenko
- Department of Systems Biology, Institute of Cytology and Genetics SB RAS, 630090 Novosibirsk, Russia; (N.A.O.); (V.V.L.); (A.G.B.); (V.A.D.); (A.D.S.)
- Department of Natural Sciences, Novosibirsk State University, 630090 Novosibirsk, Russia
| | - Elena V. Zemlyanskaya
- Department of Systems Biology, Institute of Cytology and Genetics SB RAS, 630090 Novosibirsk, Russia; (N.A.O.); (V.V.L.); (A.G.B.); (V.A.D.); (A.D.S.)
- Department of Natural Sciences, Novosibirsk State University, 630090 Novosibirsk, Russia
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8
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Mérai Z, Graeber K, Xu F, Donà M, Lalatović K, Wilhelmsson PKI, Fernandez-Pozo N, Rensing SA, Leubner-Metzger G, Mittelsten Scheid O, Dolan L. Long days induce adaptive secondary dormancy in the seeds of the Mediterranean plant Aethionema arabicum. Curr Biol 2024; 34:2893-2906.e3. [PMID: 38876102 DOI: 10.1016/j.cub.2024.05.043] [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: 01/25/2024] [Revised: 03/18/2024] [Accepted: 05/22/2024] [Indexed: 06/16/2024]
Abstract
Secondary dormancy is an adaptive trait that increases reproductive success by aligning seed germination with permissive conditions for seedling establishment. Aethionema arabicum is an annual plant and member of the Brassicaceae that grows in environments characterized by hot and dry summers. Aethionema arabicum seeds may germinate in early spring when seedling establishment is permissible. We demonstrate that long-day light regimes induce secondary dormancy in the seeds of Aethionema arabicum (CYP accession), repressing germination in summer when seedling establishment is riskier. Characterization of mutants screened for defective secondary dormancy demonstrated that RGL2 mediates repression of genes involved in gibberellin (GA) signaling. Exposure to high temperature alleviates secondary dormancy, restoring germination potential. These data are consistent with the hypothesis that long-day-induced secondary dormancy and its alleviation by high temperatures may be part of an adaptive response limiting germination to conditions permissive for seedling establishment in spring and autumn.
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Affiliation(s)
- Zsuzsanna Mérai
- Gregor Mendel Institute of Molecular Plant Biology (GMI), Austrian Academy of Sciences, Vienna Biocenter (VBC), 1030 Vienna, Austria.
| | - Kai Graeber
- Department of Biological Sciences, Royal Holloway University of London, Egham, SRY TW20 0EX, UK
| | - Fei Xu
- Gregor Mendel Institute of Molecular Plant Biology (GMI), Austrian Academy of Sciences, Vienna Biocenter (VBC), 1030 Vienna, Austria
| | - Mattia Donà
- Gregor Mendel Institute of Molecular Plant Biology (GMI), Austrian Academy of Sciences, Vienna Biocenter (VBC), 1030 Vienna, Austria
| | - Katarina Lalatović
- Gregor Mendel Institute of Molecular Plant Biology (GMI), Austrian Academy of Sciences, Vienna Biocenter (VBC), 1030 Vienna, Austria
| | - Per K I Wilhelmsson
- Plant Cell Biology, Faculty of Biology, University of Marburg, 35043 Marburg, Germany
| | - Noe Fernandez-Pozo
- Plant Cell Biology, Faculty of Biology, University of Marburg, 35043 Marburg, Germany; Institute for Mediterranean and Subtropical Horticulture "La Mayora" (IHSM-CSIC-UMA), 29010 Málaga, Spain
| | - Stefan A Rensing
- Plant Cell Biology, Faculty of Biology, University of Marburg, 35043 Marburg, Germany; Centre for Biological Signalling Studies (BIOSS), University of Freiburg, 79104 Freiburg, Germany
| | - Gerhard Leubner-Metzger
- Department of Biological Sciences, Royal Holloway University of London, Egham, SRY TW20 0EX, UK; Laboratory of Growth Regulators, Faculty of Science, Palacký University and Institute of Experimental Botany, Czech Academy of Sciences, 78371 Olomouc, Czech Republic
| | - Ortrun Mittelsten Scheid
- Gregor Mendel Institute of Molecular Plant Biology (GMI), Austrian Academy of Sciences, Vienna Biocenter (VBC), 1030 Vienna, Austria
| | - Liam Dolan
- Gregor Mendel Institute of Molecular Plant Biology (GMI), Austrian Academy of Sciences, Vienna Biocenter (VBC), 1030 Vienna, Austria
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9
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Gazzarrini S, Song L. LAFL Factors in Seed Development and Phase Transitions. ANNUAL REVIEW OF PLANT BIOLOGY 2024; 75:459-488. [PMID: 38657282 DOI: 10.1146/annurev-arplant-070623-111458] [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: 04/26/2024]
Abstract
Development is a chain reaction in which one event leads to another until the completion of a life cycle. Phase transitions are milestone events in the cycle of life. LEAFY COTYLEDON1 (LEC1), ABA INSENSITIVE3 (ABI3), FUSCA3 (FUS3), and LEC2 proteins, collectively known as LAFL, are master transcription factors (TFs) regulating seed and other developmental processes. Since the initial characterization of the LAFL genes, more than three decades of active research has generated tremendous amounts of knowledge about these TFs, whose roles in seed development and germination have been comprehensively reviewed. Recent advances in cell biology with genetic and genomic tools have allowed the characterization of the LAFL regulatory networks in previously challenging tissues at a higher throughput and resolution in reference species and crops. In this review, we provide a holistic perspective by integrating advances at the epigenetic, transcriptional, posttranscriptional, and protein levels to exemplify the spatiotemporal regulation of the LAFL networks in Arabidopsis seed development and phase transitions, and we briefly discuss the evolution of these TF networks.
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Affiliation(s)
- Sonia Gazzarrini
- Department of Cell and Systems Biology, University of Toronto, Toronto, Ontario, Canada
- Department of Biological Sciences, University of Toronto Scarborough, Toronto, Ontario, Canada;
| | - Liang Song
- Department of Botany, University of British Columbia, Vancouver, British Columbia, Canada;
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10
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Dang TT, Lalanne D, Ly Vu J, Ly Vu B, Defaye J, Verdier J, Leprince O, Buitink J. BASIC PENTACYSTEINE1 regulates ABI4 by modification of two histone marks H3K27me3 and H3ac during early seed development of Medicago truncatula. FRONTIERS IN PLANT SCIENCE 2024; 15:1395379. [PMID: 38916028 PMCID: PMC11194320 DOI: 10.3389/fpls.2024.1395379] [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: 03/03/2024] [Accepted: 05/20/2024] [Indexed: 06/26/2024]
Abstract
Introduction The production of highly vigorous seeds with high longevity is an important lever to increase crop production efficiency, but its acquisition during seed maturation is strongly influenced by the growth environment. Methods An association rule learning approach discovered MtABI4, a known longevity regulator, as a gene with transcript levels associated with the environmentally-induced change in longevity. To understand the environmental sensitivity of MtABI4 transcription, Yeast One-Hybrid identified a class I BASIC PENTACYSTEINE (MtBPC1) transcription factor as a putative upstream regulator. Its role in the regulation of MtABI4 was further characterized. Results and discussion Overexpression of MtBPC1 led to a modulation of MtABI4 transcripts and its downstream targets. We show that MtBPC1 represses MtABI4 transcription at the early stage of seed development through binding in the CT-rich motif in its promoter region. To achieve this, MtBPC1 interacts with SWINGER, a sub-unit of the PRC2 complex, and Sin3-associated peptide 18, a sub-unit of the Sin3-like deacetylation complex. Consistent with this, developmental and heat stress-induced changes in MtABI4 transcript levels correlated with H3K27me3 and H3ac enrichment in the MtABI4 promoter. Our finding reveals the importance of the combination of histone methylation and histone de-acetylation to silence MtABI4 at the early stage of seed development and during heat stress.
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Affiliation(s)
- Thi Thu Dang
- INRAE, Institut Agro, Univ Angers, Institut de Recherche en Horticulture et Semences, SFR QUASAV, Angers, France
- LIPME - Laboratoire des interactions plantes-microbes-environnement. UMR CNRS–INRAE, Castanet Tolosan, France
| | - David Lalanne
- INRAE, Institut Agro, Univ Angers, Institut de Recherche en Horticulture et Semences, SFR QUASAV, Angers, France
| | - Joseph Ly Vu
- INRAE, Institut Agro, Univ Angers, Institut de Recherche en Horticulture et Semences, SFR QUASAV, Angers, France
| | - Benoit Ly Vu
- INRAE, Institut Agro, Univ Angers, Institut de Recherche en Horticulture et Semences, SFR QUASAV, Angers, France
| | - Johan Defaye
- INRAE, Institut Agro, Univ Angers, Institut de Recherche en Horticulture et Semences, SFR QUASAV, Angers, France
| | - Jerome Verdier
- INRAE, Institut Agro, Univ Angers, Institut de Recherche en Horticulture et Semences, SFR QUASAV, Angers, France
| | - Olivier Leprince
- INRAE, Institut Agro, Univ Angers, Institut de Recherche en Horticulture et Semences, SFR QUASAV, Angers, France
| | - Julia Buitink
- INRAE, Institut Agro, Univ Angers, Institut de Recherche en Horticulture et Semences, SFR QUASAV, Angers, France
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Wang Y, Sun X, Peng J, Li F, Ali F, Wang Z. Regulation of seed germination: ROS, epigenetic, and hormonal aspects. J Adv Res 2024:S2090-1232(24)00225-X. [PMID: 38838783 DOI: 10.1016/j.jare.2024.06.001] [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: 03/01/2024] [Revised: 05/31/2024] [Accepted: 06/01/2024] [Indexed: 06/07/2024] Open
Abstract
BACKGROUND The whole life of a plant is regulated by complex environmental or hormonal signaling networks that control genomic stability, environmental signal transduction, and gene expression affecting plant development and viability. Seed germination, responsible for the transformation from seed to seedling, is a key initiation step in plant growth and is controlled by unique physiological and biochemical processes. It is continuously modulated by various factors including epigenetic modifications, hormone transport, ROS signaling, and interaction among them. ROS showed versatile crucial functions in seed germination including various physiological oxidations to nucleic acid, protein, lipid, or chromatin in the cytoplasm, cell wall, and nucleus. AIM of review: This review intends to provide novel insights into underlying mechanisms of seed germination especially associated with the ROS, and considers how these versatile regulatory mechanisms can be developed as useful tools for crop improvement. KEY SCIENTIFIC CONCEPTS OF REVIEW We have summarized the generation and elimination of ROS during seed germination, with a specific focus on uncovering and understanding the mechanisms of seed germination at the level of phytohormones, ROS, and epigenetic switches, as well as the close connections between them. The findings exhibit that ROS plays multiple roles in regulating the ethylene, ABA, and GA homeostasis as well as the Ca2+ signaling, NO signaling, and MAPK cascade in seed germination via either the signal trigger or the oxidative modifier agent. Further, ROS shows the potential in the nuclear genome remodeling and some epigenetic modifiers function, although the detailed mechanisms are unclear in seed germination. We propose that ROS functions as a hub in the complex network regulating seed germination.
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Affiliation(s)
- Yakong Wang
- Zhengzhou Research Base, State Key Laboratory of Cotton Bio‑breeding and Integrated Utilization, Zhengzhou University, Zhengzhou 450001, China; State Key Laboratory of Cotton Bio‑breeding and Integrated Utilization, Institute of Cotton Research, Chinese Academy of Agricultural Sciences, Anyang 455000, China
| | - Xiangyang Sun
- Zhengzhou Research Base, State Key Laboratory of Cotton Bio‑breeding and Integrated Utilization, Zhengzhou University, Zhengzhou 450001, China
| | - Jun Peng
- National Nanfan Research Institute (Sanya), Chinese Academy of Agricultural Sciences, Sanya 572024, Hainan, China; State Key Laboratory of Cotton Bio‑breeding and Integrated Utilization, Institute of Cotton Research, Chinese Academy of Agricultural Sciences, Anyang 455000, China
| | - Fuguang Li
- Zhengzhou Research Base, State Key Laboratory of Cotton Bio‑breeding and Integrated Utilization, Zhengzhou University, Zhengzhou 450001, China; National Nanfan Research Institute (Sanya), Chinese Academy of Agricultural Sciences, Sanya 572024, Hainan, China
| | - Faiza Ali
- Zhengzhou Research Base, State Key Laboratory of Cotton Bio‑breeding and Integrated Utilization, Zhengzhou University, Zhengzhou 450001, China.
| | - Zhi Wang
- Zhengzhou Research Base, State Key Laboratory of Cotton Bio‑breeding and Integrated Utilization, Zhengzhou University, Zhengzhou 450001, China; National Nanfan Research Institute (Sanya), Chinese Academy of Agricultural Sciences, Sanya 572024, Hainan, China; State Key Laboratory of Cotton Bio‑breeding and Integrated Utilization, Institute of Cotton Research, Chinese Academy of Agricultural Sciences, Anyang 455000, China.
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12
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Fang Z, Zhang K, Li J, Ma J, Ye C. Construction of a Membrane Yeast Two-Hybrid Library and Screening of MsPYR1-Like Interacting Proteins in Malus sieversii. Mol Biotechnol 2024:10.1007/s12033-024-01199-2. [PMID: 38824489 DOI: 10.1007/s12033-024-01199-2] [Citation(s) in RCA: 0] [Impact Index Per Article: 0] [Reference Citation Analysis] [Abstract] [Key Words] [Grants] [Track Full Text] [Journal Information] [Subscribe] [Scholar Register] [Received: 01/21/2024] [Accepted: 05/10/2024] [Indexed: 06/03/2024]
Abstract
To investigate the biological effects of the ABA receptor pyrabactin resistance 1-like (PYR1-like) in Malus sieversii seeds, the proteins interacting with MsPYR1-like were screened by the membrane yeast two-hybrid library based on the split-ubiquitin system, and to construct the bait vector pBT3-SUC-PYR1 for Malus sieversii cDNA library, which had no self-activating effect on the yeast cells of the pPR3-N membrane yeast two-hybrid library. The library titer assay showed that it could meet the requirements for membrane yeast two-hybrid library screening. After sequencing, GenBank database blast, and yeast rotary validation, 28 candidate proteins interacting with MsPYR1-like were obtained, including ribosomal proteins, late embryogenesis abundant proteins, F-actin-capping proteins, phytochrome-interacting proteins, low-temperature-inducible 65 kDa protein-like, senescence-associated, PP2C and SnRK2 family members, and unknown proteins. Gene ontology analysis of the interaction proteins was related to plant hormone response and negative regulation of seed germination, overexpression of MsPYR1-like in Arabidopsis negatively regulates seed germination, and the study of the biological roles of MsPYR1-like interacting proteins lays the foundation for revealing the lifting of seed dormancy in Malus sieversii.
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Affiliation(s)
- Zhen Fang
- College of Forestry and Landscape Architecture, Xinjiang Agricultural University, Urumqi, 830052, Xinjiang, China
| | - Kai Zhang
- College of Forestry and Landscape Architecture, Xinjiang Agricultural University, Urumqi, 830052, Xinjiang, China
| | - Jing Li
- College of Forestry and Landscape Architecture, Xinjiang Agricultural University, Urumqi, 830052, Xinjiang, China
| | - Juan Ma
- College of Forestry and Landscape Architecture, Xinjiang Agricultural University, Urumqi, 830052, Xinjiang, China
| | - Chunxiu Ye
- College of Forestry and Landscape Architecture, Xinjiang Agricultural University, Urumqi, 830052, Xinjiang, China.
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13
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Zhao R, Yu Y, Gao M, Xing Y, Xue J, Xu L, Kang T. The conversion of monolignans to sesquilignans and dilignans is closely correlated to the regulation of Arctium lappa seed germination. PLANTA 2024; 260:9. [PMID: 38795149 DOI: 10.1007/s00425-024-04445-8] [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: 12/12/2023] [Accepted: 05/17/2024] [Indexed: 05/27/2024]
Abstract
MAIN CONCLUSION The secondary metabolic conversion of monolignans to sesquilignans/dilignans was closely related to seed germination and seedling establishment in Arctium lappa. Arctium lappa plants are used as a kind of traditional Chinese medicines for nearly 1500 years, and so far, only a few studies have put focus on the key secondary metabolic changes during seed germination and seedling establishment. In the current study, a combined approach was used to investigate the correlation among secondary metabolites, plant hormone signaling, and transcriptional profiles at the early critical stages of A. lappa seed germination and seedling establishment. Of 50 metabolites in methonolic extracts of A. lappa samples, 35 metabolites were identified with LC-MS/MS and 15 metabolites were identified with GC-MS. Their qualitative properties were examined according to the predicted chemical structures. The quantitative analysis was performed for deciphering their metabolic profiles, discovering that the secondary metabolic conversion from monolignans to sesquilignans/dilignans was closely correlated to the initiation of A. lappa seed germination and seedling establishment. Furthermore, the critical transcriptional changes in primary metabolisms, translational regulation at different cellular compartments, and multiple plant hormone signaling pathways were revealed. In addition, the combined approach provides unprecedented insights into key regulatory mechanisms in both gene transcription and secondary metabolites besides many known primary metabolites during seed germination of an important traditional Chinese medicinal plant species. The results not only provide new insights to understand the regulation of key medicinal components of 'ARCTII FRUCTUS', arctiin and arctigenin at the stages of seed germination and seedling establishment, but also potentially spur the development of seed-based cultivation in A. lappa plants.
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Affiliation(s)
- Rong Zhao
- School of Pharmacy, Liaoning University of Traditional Chinese Medicine, Dalian, 116600, Liaoning Province, People's Republic of China
| | - Ying Yu
- School of Pharmacy, Liaoning University of Traditional Chinese Medicine, Dalian, 116600, Liaoning Province, People's Republic of China
| | - Mingze Gao
- School of Pharmacy, Liaoning University of Traditional Chinese Medicine, Dalian, 116600, Liaoning Province, People's Republic of China
| | - Yanping Xing
- School of Pharmacy, Liaoning University of Traditional Chinese Medicine, Dalian, 116600, Liaoning Province, People's Republic of China
| | - Jianing Xue
- School of Pharmacy, Liaoning University of Traditional Chinese Medicine, Dalian, 116600, Liaoning Province, People's Republic of China
| | - Liang Xu
- School of Pharmacy, Liaoning University of Traditional Chinese Medicine, Dalian, 116600, Liaoning Province, People's Republic of China.
| | - Tingguo Kang
- School of Pharmacy, Liaoning University of Traditional Chinese Medicine, Dalian, 116600, Liaoning Province, People's Republic of China.
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Zhang L, Tang Q, Li P, Li C, Jiang L, Chen J, Chen Y, Liu Q, Yang Y. Methodological and Physiological Study during Seed Dormancy Release of Symplocos paniculata. PLANTS (BASEL, SWITZERLAND) 2024; 13:1459. [PMID: 38891268 PMCID: PMC11174710 DOI: 10.3390/plants13111459] [Citation(s) in RCA: 0] [Impact Index Per Article: 0] [Reference Citation Analysis] [Abstract] [Key Words] [Grants] [Track Full Text] [Subscribe] [Scholar Register] [Received: 04/01/2024] [Revised: 05/21/2024] [Accepted: 05/22/2024] [Indexed: 06/21/2024]
Abstract
Symplocos paniculata are reported to exhibit seed dormancy, which impedes its cultivation and widespread adoption. In this study, a comprehensive method was established to overcome seed dormancy by subjecting seeds to scarification in 98% H2SO4 for 10 min, followed by 1000 mg·L-1 GA3 soaking for 48 h and stratification at 4 °C for 100 days. The seed germination percentage has increased significantly, to a peak of 42.67%, though the seeds could not germinate timely by NaOH scarification. Additionally, the dynamic changes of key stored substances (proteins, soluble sugars, starches, and fats), associated enzyme activities (amylases, peroxidase, and catalase), and endogenous hormones (abscisic acid, gibberellic acid, and indole-3-acetic acid) in seeds were investigated. The results demonstrated a continuous degradation of starch and fat in S. paniculata seeds, while the levels of protein and soluble sugar exhibited fluctuations, which probably facilitated seed dormancy breaking through energy supply and transformation. The enzymatic activities underwent rapid changes, accompanied by a gradual decrease in ABA content within the seeds with increasing stratification time. Notably, GA3, GA3/ABA, and (GA3 + IAA)/ABA showed significant increases, indicating their positive regulatory roles in seed germination. This study clarified the dormancy mechanism and established an effective method for the release dormancy of S. paniculata seeds.
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Affiliation(s)
- Luhong Zhang
- State Key Laboratory of Utilization of Woody Oil Resource, Hunan Academy of Forestry, Changsha 410004, China; (L.Z.)
- College of Life and Environmental Sciences, Central South University of Forestry and Technology, Changsha 410004, China
| | - Qiaoyu Tang
- State Key Laboratory of Utilization of Woody Oil Resource, Hunan Academy of Forestry, Changsha 410004, China; (L.Z.)
- College of Life and Environmental Sciences, Central South University of Forestry and Technology, Changsha 410004, China
| | - Peiwang Li
- State Key Laboratory of Utilization of Woody Oil Resource, Hunan Academy of Forestry, Changsha 410004, China; (L.Z.)
| | - Changzhu Li
- State Key Laboratory of Utilization of Woody Oil Resource, Hunan Academy of Forestry, Changsha 410004, China; (L.Z.)
- Key Laboratory of National Forestry and Grassland Administration on Utilization Science for Southern Woody Oilseed, Changsha 410128, China
| | - Lijuan Jiang
- College of Life and Environmental Sciences, Central South University of Forestry and Technology, Changsha 410004, China
| | - Jingzhen Chen
- State Key Laboratory of Utilization of Woody Oil Resource, Hunan Academy of Forestry, Changsha 410004, China; (L.Z.)
| | - Yunzhu Chen
- State Key Laboratory of Utilization of Woody Oil Resource, Hunan Academy of Forestry, Changsha 410004, China; (L.Z.)
| | - Qiang Liu
- College of Life and Environmental Sciences, Central South University of Forestry and Technology, Changsha 410004, China
| | - Yan Yang
- State Key Laboratory of Utilization of Woody Oil Resource, Hunan Academy of Forestry, Changsha 410004, China; (L.Z.)
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15
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Fu Z, Yuan X, Zhao Y, Wang X, Lu L, Wang H, Li Y, Gao J, Wang L, Zhang H. Identification of ARF Genes and Elucidation of the Regulatory Effects of PsARF16a on the Dormancy of Tree Peony Plantlets. Genes (Basel) 2024; 15:666. [PMID: 38927602 PMCID: PMC11203063 DOI: 10.3390/genes15060666] [Citation(s) in RCA: 0] [Impact Index Per Article: 0] [Reference Citation Analysis] [Abstract] [Key Words] [MESH Headings] [Grants] [Track Full Text] [Journal Information] [Subscribe] [Scholar Register] [Received: 04/10/2024] [Revised: 05/09/2024] [Accepted: 05/21/2024] [Indexed: 06/28/2024] Open
Abstract
The low survival rate of transplanted plantlets, which has limited the utility of tissue-culture-based methods for the rapid propagation of tree peonies, is due to plantlet dormancy after rooting. We previously determined that the auxin response factor PsARF may be a key regulator of tree peony dormancy. To clarify the mechanism mediating tree peony plantlet dormancy, PsARF genes were systematically identified and analyzed. Additionally, PsARF16a was transiently expressed in the leaves of tree peony plantlets to examine its regulatory effects on a downstream gene network. Nineteen PsARF genes were identified and divided into four classes. All PsARF genes encoded proteins with conserved B3 and ARF domains. The number of motifs, exons, and introns varied between PsARF genes in different classes. The overexpression of PsARF16a altered the expression of NCED, ZEP, PYL, GA2ox1, GID1, and other key genes in abscisic acid (ABA) and gibberellin (GA) signal transduction pathways, thereby promoting ABA synthesis and decreasing GA synthesis. Significant changes to the expression of some key genes contributing to starch and sugar metabolism (e.g., AMY2A, BAM3, BGLU, STP, and SUS2) may be associated with the gradual conversion of sugar into starch. This study provides important insights into PsARF functions in tree peonies.
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Affiliation(s)
- Zhenzhu Fu
- Horticultural Research Institute, Henan Academy of Agricultural Sciences, Zhengzhou 450002, China
| | - Xin Yuan
- Horticultural Research Institute, Henan Academy of Agricultural Sciences, Zhengzhou 450002, China
| | - Yinge Zhao
- Horticultural Research Institute, Henan Academy of Agricultural Sciences, Zhengzhou 450002, China
| | - Xiaohui Wang
- Luoyang Academy of Agriculture and Forestry Sciences, Luoyang 471022, China
| | - Lin Lu
- Luoyang Academy of Agriculture and Forestry Sciences, Luoyang 471022, China
| | - Huijuan Wang
- Horticultural Research Institute, Henan Academy of Agricultural Sciences, Zhengzhou 450002, China
| | - Yanmin Li
- Horticultural Research Institute, Henan Academy of Agricultural Sciences, Zhengzhou 450002, China
| | - Jie Gao
- Horticultural Research Institute, Henan Academy of Agricultural Sciences, Zhengzhou 450002, China
| | - Limin Wang
- Horticultural Research Institute, Henan Academy of Agricultural Sciences, Zhengzhou 450002, China
| | - Hechen Zhang
- Horticultural Research Institute, Henan Academy of Agricultural Sciences, Zhengzhou 450002, China
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16
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Fu Y, Ma L, Li J, Hou D, Zeng B, Zhang L, Liu C, Bi Q, Tan J, Yu X, Bi J, Luo L. Factors Influencing Seed Dormancy and Germination and Advances in Seed Priming Technology. PLANTS (BASEL, SWITZERLAND) 2024; 13:1319. [PMID: 38794390 PMCID: PMC11125191 DOI: 10.3390/plants13101319] [Citation(s) in RCA: 0] [Impact Index Per Article: 0] [Reference Citation Analysis] [Abstract] [Key Words] [Track Full Text] [Subscribe] [Scholar Register] [Received: 04/07/2024] [Revised: 05/07/2024] [Accepted: 05/08/2024] [Indexed: 05/26/2024]
Abstract
Seed dormancy and germination play pivotal roles in the agronomic traits of plants, and the degree of dormancy intuitively affects the yield and quality of crops in agricultural production. Seed priming is a pre-sowing seed treatment that enhances and accelerates germination, leading to improved seedling establishment. Seed priming technologies, which are designed to partially activate germination, while preventing full seed germination, have exerted a profound impact on agricultural production. Conventional seed priming relies on external priming agents, which often yield unstable results. What works for one variety might not be effective for another. Therefore, it is necessary to explore the internal factors within the metabolic pathways that influence seed physiology and germination. This review unveils the underlying mechanisms of seed metabolism and germination, the factors affecting seed dormancy and germination, as well as the current seed priming technologies that can result in stable and better germination.
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Affiliation(s)
- Yanfeng Fu
- Shanghai Agrobiological Gene Center, Shanghai 201106, China; (Y.F.); (X.Y.); (L.L.)
- Key Laboratory of Grain Crop Genetic Resources Evaluation and Utilization, Ministry of Agriculture and Rural Affairs, Shanghai 201106, China; (J.L.); (D.H.); (Q.B.); (J.T.)
- National Key Laboratory of Crop Genetic Improvement, College of Plant Science and Technology, Huazhong Agricultural University, Wuhan 430070, China
| | - Li Ma
- Institute for Sustainable Horticulture, Kwantlen Polytechnic University, 20901 Langley Bypass, Langley, BC V3A 8G9, Canada;
| | - Juncai Li
- Key Laboratory of Grain Crop Genetic Resources Evaluation and Utilization, Ministry of Agriculture and Rural Affairs, Shanghai 201106, China; (J.L.); (D.H.); (Q.B.); (J.T.)
- National Key Laboratory of Crop Genetic Improvement, College of Plant Science and Technology, Huazhong Agricultural University, Wuhan 430070, China
| | - Danping Hou
- Key Laboratory of Grain Crop Genetic Resources Evaluation and Utilization, Ministry of Agriculture and Rural Affairs, Shanghai 201106, China; (J.L.); (D.H.); (Q.B.); (J.T.)
- National Key Laboratory of Crop Genetic Improvement, College of Plant Science and Technology, Huazhong Agricultural University, Wuhan 430070, China
| | - Bo Zeng
- National Agricultural Technology Extension Service Center, Room 622, Building 20, Maizidian Street, Chaoyang District, Beijing 100125, China; (B.Z.); (L.Z.); (C.L.)
| | - Like Zhang
- National Agricultural Technology Extension Service Center, Room 622, Building 20, Maizidian Street, Chaoyang District, Beijing 100125, China; (B.Z.); (L.Z.); (C.L.)
| | - Chunqing Liu
- National Agricultural Technology Extension Service Center, Room 622, Building 20, Maizidian Street, Chaoyang District, Beijing 100125, China; (B.Z.); (L.Z.); (C.L.)
| | - Qingyu Bi
- Key Laboratory of Grain Crop Genetic Resources Evaluation and Utilization, Ministry of Agriculture and Rural Affairs, Shanghai 201106, China; (J.L.); (D.H.); (Q.B.); (J.T.)
- National Key Laboratory of Crop Genetic Improvement, College of Plant Science and Technology, Huazhong Agricultural University, Wuhan 430070, China
| | - Jinsong Tan
- Key Laboratory of Grain Crop Genetic Resources Evaluation and Utilization, Ministry of Agriculture and Rural Affairs, Shanghai 201106, China; (J.L.); (D.H.); (Q.B.); (J.T.)
- National Key Laboratory of Crop Genetic Improvement, College of Plant Science and Technology, Huazhong Agricultural University, Wuhan 430070, China
| | - Xinqiao Yu
- Shanghai Agrobiological Gene Center, Shanghai 201106, China; (Y.F.); (X.Y.); (L.L.)
- Key Laboratory of Grain Crop Genetic Resources Evaluation and Utilization, Ministry of Agriculture and Rural Affairs, Shanghai 201106, China; (J.L.); (D.H.); (Q.B.); (J.T.)
- National Key Laboratory of Crop Genetic Improvement, College of Plant Science and Technology, Huazhong Agricultural University, Wuhan 430070, China
| | - Junguo Bi
- Key Laboratory of Grain Crop Genetic Resources Evaluation and Utilization, Ministry of Agriculture and Rural Affairs, Shanghai 201106, China; (J.L.); (D.H.); (Q.B.); (J.T.)
- National Key Laboratory of Crop Genetic Improvement, College of Plant Science and Technology, Huazhong Agricultural University, Wuhan 430070, China
| | - Lijun Luo
- Shanghai Agrobiological Gene Center, Shanghai 201106, China; (Y.F.); (X.Y.); (L.L.)
- Key Laboratory of Grain Crop Genetic Resources Evaluation and Utilization, Ministry of Agriculture and Rural Affairs, Shanghai 201106, China; (J.L.); (D.H.); (Q.B.); (J.T.)
- National Key Laboratory of Crop Genetic Improvement, College of Plant Science and Technology, Huazhong Agricultural University, Wuhan 430070, China
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17
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Di X, Wang Q, Zhang F, Feng H, Wang X, Cai C. Advances in the Modulation of Potato Tuber Dormancy and Sprouting. Int J Mol Sci 2024; 25:5078. [PMID: 38791120 PMCID: PMC11121589 DOI: 10.3390/ijms25105078] [Citation(s) in RCA: 0] [Impact Index Per Article: 0] [Reference Citation Analysis] [Abstract] [Key Words] [MESH Headings] [Grants] [Track Full Text] [Journal Information] [Subscribe] [Scholar Register] [Received: 04/03/2024] [Revised: 05/02/2024] [Accepted: 05/04/2024] [Indexed: 05/26/2024] Open
Abstract
The post-harvest phase of potato tuber dormancy and sprouting are essential in determining the economic value. The intricate transition from dormancy to active growth is influenced by multiple factors, including environmental factors, carbohydrate metabolism, and hormonal regulation. Well-established environmental factors such as temperature, humidity, and light play pivotal roles in these processes. However, recent research has expanded our understanding to encompass other novel influences such as magnetic fields, cold plasma treatment, and UV-C irradiation. Hormones like abscisic acid (ABA), gibberellic acid (GA), cytokinins (CK), auxin, and ethylene (ETH) act as crucial messengers, while brassinosteroids (BRs) have emerged as key modulators of potato tuber sprouting. In addition, jasmonates (JAs), strigolactones (SLs), and salicylic acid (SA) also regulate potato dormancy and sprouting. This review article delves into the intricate study of potato dormancy and sprouting, emphasizing the impact of environmental conditions, carbohydrate metabolism, and hormonal regulation. It explores how various environmental factors affect dormancy and sprouting processes. Additionally, it highlights the role of carbohydrates in potato tuber sprouting and the intricate hormonal interplay, particularly the role of BRs. This review underscores the complexity of these interactions and their importance in optimizing potato dormancy and sprouting for agricultural practices.
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Affiliation(s)
- Xueni Di
- College of Agronomy, Sichuan Agricultural University, Chengdu 611130, China
- State Key Laboratory of Crop Gene Exploration and Utilization in Southwest China, Sichuan Agricultural University, Chengdu 611130, China
| | - Qiang Wang
- College of Agronomy, Sichuan Agricultural University, Chengdu 611130, China
- State Key Laboratory of Crop Gene Exploration and Utilization in Southwest China, Sichuan Agricultural University, Chengdu 611130, China
| | - Feng Zhang
- College of Agronomy, Sichuan Agricultural University, Chengdu 611130, China
- State Key Laboratory of Crop Gene Exploration and Utilization in Southwest China, Sichuan Agricultural University, Chengdu 611130, China
| | - Haojie Feng
- College of Agronomy, Sichuan Agricultural University, Chengdu 611130, China
- State Key Laboratory of Crop Gene Exploration and Utilization in Southwest China, Sichuan Agricultural University, Chengdu 611130, China
| | - Xiyao Wang
- College of Agronomy, Sichuan Agricultural University, Chengdu 611130, China
- State Key Laboratory of Crop Gene Exploration and Utilization in Southwest China, Sichuan Agricultural University, Chengdu 611130, China
| | - Chengcheng Cai
- College of Agronomy, Sichuan Agricultural University, Chengdu 611130, China
- State Key Laboratory of Crop Gene Exploration and Utilization in Southwest China, Sichuan Agricultural University, Chengdu 611130, China
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18
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Liu J, Qiu S, Xue T, Yuan Y. Physiology and transcriptome of Sapindus mukorossi seeds at different germination stages. Genomics 2024; 116:110822. [PMID: 38471577 DOI: 10.1016/j.ygeno.2024.110822] [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: 12/02/2023] [Revised: 03/02/2024] [Accepted: 03/04/2024] [Indexed: 03/14/2024]
Abstract
Sapindus mukorossi has a wide distribution range, high application value, and broad developmental potential. Previous studies have mostly focused on the medicinal and economic value of soapberry; however, few studies have been conducted on its seed germination. This study measured the physiological indicators and hormone content of soapberry seeds at different germination stages and preliminarily determined that abscisic acid (ABA) and indole-3-acetic acid (IAA) are the key hormones that affect the germination of soapberry seeds. Both Gene Ontology (GO) and Kyoto Encyclopedia of Genes and Genomes (KEGG enrichment) analyses detected hormone transduction pathways, further confirming the key role of plant hormones in the germination process of soapberry seeds. Through transcriptome analysis, we speculated that CYP707A and IPA are key genes in the ABA and IAA synthesis pathways, respectively. This study revealed the close relationship between plant hormones and soapberry seed germination and provided new ideas for further exploration of the germination mechanism of soapberry seeds.
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Affiliation(s)
- Jia Liu
- Department of Civil and Architecture and Engineering, Chuzhou University, Anhui 239000, China
| | - Sumei Qiu
- College of Horticulture and Landscape Architecture, Yangzhou University, Yangzhou 225009, China
| | - Tingting Xue
- Department of Civil and Architecture and Engineering, Chuzhou University, Anhui 239000, China.
| | - Yingdan Yuan
- College of Horticulture and Landscape Architecture, Yangzhou University, Yangzhou 225009, China.
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Sajeev N, Koornneef M, Bentsink L. A commitment for life: Decades of unraveling the molecular mechanisms behind seed dormancy and germination. THE PLANT CELL 2024; 36:1358-1376. [PMID: 38215009 PMCID: PMC11062444 DOI: 10.1093/plcell/koad328] [Citation(s) in RCA: 0] [Impact Index Per Article: 0] [Reference Citation Analysis] [Abstract] [MESH Headings] [Track Full Text] [Subscribe] [Scholar Register] [Received: 08/24/2023] [Accepted: 12/19/2023] [Indexed: 01/14/2024]
Abstract
Seeds are unique time capsules that can switch between 2 complex and highly interlinked stages: seed dormancy and germination. Dormancy contributes to the survival of plants because it allows to delay germination to optimal conditions. The switch between dormancy and germination occurs in response to developmental and environmental cues. In this review we provide a comprehensive overview of studies that have helped to unravel the molecular mechanisms underlying dormancy and germination over the last decades. Genetic and physiological studies provided a strong foundation for this field of research and revealed the critical role of the plant hormones abscisic acid and gibberellins in the regulation of dormancy and germination, and later natural variation studies together with quantitative genetics identified previously unknown genetic components that control these processes. Omics technologies like transcriptome, proteome, and translatomics analysis allowed us to mechanistically dissect these processes and identify new components in the regulation of seed dormancy and germination.
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Affiliation(s)
- Nikita Sajeev
- Wageningen Seed Science Centre, Laboratory of Plant Physiology, Wageningen University, 6708PB Wageningen, the Netherlands
| | - Maarten Koornneef
- Laboratory of Genetics, Wageningen University, 6708PB Wageningen, the Netherlands
- Max Planck Institute for Plant Breeding Research, Former Department of Plant Breeding and Genetics, Koeln 50829, Germany
| | - Leónie Bentsink
- Wageningen Seed Science Centre, Laboratory of Plant Physiology, Wageningen University, 6708PB Wageningen, the Netherlands
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20
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Duan S, Guan S, Fei R, Sun T, Kang X, Xin R, Song W, Sun X. Unraveling the role of PlARF2 in regulating deed formancy in Paeonia lactiflora. PLANTA 2024; 259:133. [PMID: 38668881 DOI: 10.1007/s00425-024-04411-4] [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: 11/25/2023] [Accepted: 04/10/2024] [Indexed: 05/01/2024]
Abstract
MAIN CONCLUSION PlARF2 can positively regulate the seed dormancy in Paeonia lactiflora Pall. and bind the RY cis-element. Auxin, a significant phytohormone influencing seed dormancy, has been demonstrated to be regulated by auxin response factors (ARFs), key transcriptional modulators in the auxin signaling pathway. However, the role of this class of transcription factors (TFs) in perennials with complex seed dormancy mechanisms remains largely unexplored. Here, we cloned and characterized an ARF gene from Paeonia lactiflora, named PlARF2, which exhibited differential expression levels in the seeds during the process of seed dormancy release. The deduced amino acid sequence of PlARF2 had high homology with those of other plants and contained typical conserved Auxin_resp domain of the ARF family. Phylogenetic analysis revealed that PlARF2 was closely related to VvARF3 in Vitis vinifera. The subcellular localization and transcriptional activation assay showed that PlARF2 is a nuclear protein possessing transcriptional activation activity. The expression levels of dormancy-related genes in transgenic callus indicated that PlARF2 was positively correlated with the contents of PlABI3 and PlDOG1. The germination assay showed that PlARF2 promoted seed dormancy. Moreover, TF Centered Yeast one-hybrid assay (TF-Centered Y1H), electrophoretic mobility shift assay (EMSA) and dual-luciferase reporter assay analysis (Dual-Luciferase) provided evidence that PlARF2 can bind to the 'CATGCATG' motif. Collectively, our findings suggest that PlARF2, as TF, could be involved in the regulation of seed dormancy and may act as a repressor of germination.
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Affiliation(s)
- Siyang Duan
- College of Forestry, Shenyang Agricultural University, Shenyang, 110866, China
- Key Laboratory of Forest Tree Genetics, Breeding and Cultivation of Liaoning Province, Shenyang, 110866, China
| | - Shixin Guan
- College of Forestry, Shenyang Agricultural University, Shenyang, 110866, China
- Key Laboratory of Forest Tree Genetics, Breeding and Cultivation of Liaoning Province, Shenyang, 110866, China
| | - Riwen Fei
- College of Forestry, Shenyang Agricultural University, Shenyang, 110866, China
- Key Laboratory of Forest Tree Genetics, Breeding and Cultivation of Liaoning Province, Shenyang, 110866, China
| | - Tianyi Sun
- College of Forestry, Shenyang Agricultural University, Shenyang, 110866, China
- Key Laboratory of Forest Tree Genetics, Breeding and Cultivation of Liaoning Province, Shenyang, 110866, China
| | - Xuening Kang
- College of Forestry, Shenyang Agricultural University, Shenyang, 110866, China
- Key Laboratory of Forest Tree Genetics, Breeding and Cultivation of Liaoning Province, Shenyang, 110866, China
| | - Rujie Xin
- College of Forestry, Shenyang Agricultural University, Shenyang, 110866, China
- Key Laboratory of Forest Tree Genetics, Breeding and Cultivation of Liaoning Province, Shenyang, 110866, China
| | - Wenhui Song
- College of Forestry, Shenyang Agricultural University, Shenyang, 110866, China
- Key Laboratory of Forest Tree Genetics, Breeding and Cultivation of Liaoning Province, Shenyang, 110866, China
| | - Xiaomei Sun
- College of Forestry, Shenyang Agricultural University, Shenyang, 110866, China.
- Key Laboratory of Forest Tree Genetics, Breeding and Cultivation of Liaoning Province, Shenyang, 110866, China.
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21
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Chen D, Xu Y, Li J, Shiba H, Ezura H, Wang N. ERECTA Modulates Seed Germination and Fruit Development via Auxin Signaling in Tomato. Int J Mol Sci 2024; 25:4754. [PMID: 38731974 PMCID: PMC11084166 DOI: 10.3390/ijms25094754] [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: 03/21/2024] [Revised: 04/19/2024] [Accepted: 04/23/2024] [Indexed: 05/13/2024] Open
Abstract
Tomato (Solanum lycopersicum) breeding for improved fruit quality emphasizes selecting for desirable taste and characteristics, as well as enhancing disease resistance and yield. Seed germination is the initial step in the plant life cycle and directly affects crop productivity and yield. ERECTA (ER) is a receptor-like kinase (RLK) family protein known for its involvement in diverse developmental processes. We characterized a Micro-Tom EMS mutant designated as a knock-out mutant of sler. Our research reveals that SlER plays a central role in controlling critical traits such as inflorescence development, seed number, and seed germination. The elevation in auxin levels and alterations in the expression of ABSCISIC ACID INSENSITIVE 3 (ABI3) and ABI5 in sler seeds compared to the WT indicate that SlER modulates seed germination via auxin and abscisic acid (ABA) signaling. Additionally, we detected an increase in auxin content in the sler ovary and changes in the expression of auxin synthesis genes YUCCA flavin monooxygenases 1 (YUC1), YUC4, YUC5, and YUC6 as well as auxin response genes AUXIN RESPONSE FACTOR 5 (ARF5) and ARF7, suggesting that SlER regulates fruit development via auxin signaling.
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Affiliation(s)
- Daoyun Chen
- Graduate School of Life and Environmental Sciences, University of Tsukuba, Tsukuba 305-8572, Ibaraki, Japan; (D.C.); (Y.X.); (J.L.); (H.S.); (H.E.)
| | - Yuqing Xu
- Graduate School of Life and Environmental Sciences, University of Tsukuba, Tsukuba 305-8572, Ibaraki, Japan; (D.C.); (Y.X.); (J.L.); (H.S.); (H.E.)
| | - Jiawei Li
- Graduate School of Life and Environmental Sciences, University of Tsukuba, Tsukuba 305-8572, Ibaraki, Japan; (D.C.); (Y.X.); (J.L.); (H.S.); (H.E.)
| | - Hiroshi Shiba
- Graduate School of Life and Environmental Sciences, University of Tsukuba, Tsukuba 305-8572, Ibaraki, Japan; (D.C.); (Y.X.); (J.L.); (H.S.); (H.E.)
- Tsukuba Plant Innovation Research Center, University of Tsukuba, Tsukuba 305-8572, Ibaraki, Japan
| | - Hiroshi Ezura
- Graduate School of Life and Environmental Sciences, University of Tsukuba, Tsukuba 305-8572, Ibaraki, Japan; (D.C.); (Y.X.); (J.L.); (H.S.); (H.E.)
- Tsukuba Plant Innovation Research Center, University of Tsukuba, Tsukuba 305-8572, Ibaraki, Japan
| | - Ning Wang
- Graduate School of Life and Environmental Sciences, University of Tsukuba, Tsukuba 305-8572, Ibaraki, Japan; (D.C.); (Y.X.); (J.L.); (H.S.); (H.E.)
- Tsukuba Plant Innovation Research Center, University of Tsukuba, Tsukuba 305-8572, Ibaraki, Japan
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22
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Xie T, Hu W, Shen J, Xu J, Yang Z, Chen X, Zhu P, Chen M, Chen S, Zhang H, Cheng J. Allantoate Amidohydrolase OsAAH is Essential for Preharvest Sprouting Resistance in Rice. RICE (NEW YORK, N.Y.) 2024; 17:28. [PMID: 38622442 PMCID: PMC11018578 DOI: 10.1186/s12284-024-00706-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: 02/20/2024] [Accepted: 03/30/2024] [Indexed: 04/17/2024]
Abstract
Preharvest sprouting (PHS) is an undesirable trait that decreases yield and quality in rice production. Understanding the genes and regulatory mechanisms underlying PHS is of great significance for breeding PHS-resistant rice. In this study, we identified a mutant, preharvest sprouting 39 (phs39), that exhibited an obvious PHS phenotype in the field. MutMap+ analysis and transgenic experiments demonstrated that OsAAH, which encodes allantoate amidohydrolase, is the causal gene of phs39 and is essential for PHS resistance. OsAAH was highly expressed in roots and leaves at the heading stage and gradually increased and then weakly declined in the seed developmental stage. OsAAH protein was localized to the endoplasmic reticulum, with a function of hydrolyzing allantoate in vitro. Disruption of OsAAH increased the levels of ureides (allantoate and allantoin) and activated the tricarboxylic acid (TCA) cycle, and thus increased energy levels in developing seeds. Additionally, the disruption of OsAAH significantly increased asparagine, arginine, and lysine levels, decreased tryptophan levels, and decreased levels of indole-3-acetic acid (IAA) and abscisic acid (ABA). Our findings revealed that the OsAAH of ureide catabolism is involved in the regulation of rice PHS via energy and hormone metabolisms, which will help to facilitate the breeding of rice PHS-resistant varieties.
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Affiliation(s)
- Ting Xie
- National Key Laboratory of Crop Genetics & Germplasm Enhancement and Utilization, Jiangsu Collaborative Innovation Center for Modern Crop Production, Hainan Yazhou Bay Seed Lab, Jiangsu Province Engineering Research Center of Seed Industry Science and Technology, Nanjing Agricultural University, 210095, Nanjing, China
| | - Wenling Hu
- National Key Laboratory of Crop Genetics & Germplasm Enhancement and Utilization, Jiangsu Collaborative Innovation Center for Modern Crop Production, Hainan Yazhou Bay Seed Lab, Jiangsu Province Engineering Research Center of Seed Industry Science and Technology, Nanjing Agricultural University, 210095, Nanjing, China
| | - Jiaxin Shen
- National Key Laboratory of Crop Genetics & Germplasm Enhancement and Utilization, Jiangsu Collaborative Innovation Center for Modern Crop Production, Hainan Yazhou Bay Seed Lab, Jiangsu Province Engineering Research Center of Seed Industry Science and Technology, Nanjing Agricultural University, 210095, Nanjing, China
| | - Jiangyu Xu
- National Key Laboratory of Crop Genetics & Germplasm Enhancement and Utilization, Jiangsu Collaborative Innovation Center for Modern Crop Production, Hainan Yazhou Bay Seed Lab, Jiangsu Province Engineering Research Center of Seed Industry Science and Technology, Nanjing Agricultural University, 210095, Nanjing, China
| | - Zeyuan Yang
- National Key Laboratory of Crop Genetics & Germplasm Enhancement and Utilization, Jiangsu Collaborative Innovation Center for Modern Crop Production, Hainan Yazhou Bay Seed Lab, Jiangsu Province Engineering Research Center of Seed Industry Science and Technology, Nanjing Agricultural University, 210095, Nanjing, China
| | - Xinyi Chen
- National Key Laboratory of Crop Genetics & Germplasm Enhancement and Utilization, Jiangsu Collaborative Innovation Center for Modern Crop Production, Hainan Yazhou Bay Seed Lab, Jiangsu Province Engineering Research Center of Seed Industry Science and Technology, Nanjing Agricultural University, 210095, Nanjing, China
| | - Peiwen Zhu
- National Key Laboratory of Crop Genetics & Germplasm Enhancement and Utilization, Jiangsu Collaborative Innovation Center for Modern Crop Production, Hainan Yazhou Bay Seed Lab, Jiangsu Province Engineering Research Center of Seed Industry Science and Technology, Nanjing Agricultural University, 210095, Nanjing, China
| | - Mingming Chen
- National Key Laboratory of Crop Genetics & Germplasm Enhancement and Utilization, Jiangsu Collaborative Innovation Center for Modern Crop Production, Hainan Yazhou Bay Seed Lab, Jiangsu Province Engineering Research Center of Seed Industry Science and Technology, Nanjing Agricultural University, 210095, Nanjing, China
- College of Life Sciences, Henan Agricultural University, 450002, Zhengzhou, China
| | - Sunlu Chen
- National Key Laboratory of Crop Genetics & Germplasm Enhancement and Utilization, Jiangsu Collaborative Innovation Center for Modern Crop Production, Hainan Yazhou Bay Seed Lab, Jiangsu Province Engineering Research Center of Seed Industry Science and Technology, Nanjing Agricultural University, 210095, Nanjing, China
| | - Hongsheng Zhang
- National Key Laboratory of Crop Genetics & Germplasm Enhancement and Utilization, Jiangsu Collaborative Innovation Center for Modern Crop Production, Hainan Yazhou Bay Seed Lab, Jiangsu Province Engineering Research Center of Seed Industry Science and Technology, Nanjing Agricultural University, 210095, Nanjing, China.
| | - Jinping Cheng
- National Key Laboratory of Crop Genetics & Germplasm Enhancement and Utilization, Jiangsu Collaborative Innovation Center for Modern Crop Production, Hainan Yazhou Bay Seed Lab, Jiangsu Province Engineering Research Center of Seed Industry Science and Technology, Nanjing Agricultural University, 210095, Nanjing, China.
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23
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Xu H, Wang F, Rebecca Njeri Damari, Chen X, Lin Z. Molecular mechanisms underlying the signal perception and transduction during seed germination. MOLECULAR BREEDING : NEW STRATEGIES IN PLANT IMPROVEMENT 2024; 44:27. [PMID: 38525006 PMCID: PMC10954596 DOI: 10.1007/s11032-024-01465-w] [Citation(s) in RCA: 0] [Impact Index Per Article: 0] [Reference Citation Analysis] [Abstract] [Key Words] [Grants] [Track Full Text] [Subscribe] [Scholar Register] [Received: 09/20/2023] [Accepted: 03/12/2024] [Indexed: 03/26/2024]
Abstract
QuerySeed germination is a vital step in the life cycle of a plant, playing a significant role in seedling establishment and crop yield potential. It is also an important factor in the conservation of plant germplasm resources. This complex process is influenced by a myriad of factors, including environmental conditions, the genetic makeup of the seed, and endogenous hormones. The perception of these environmental signals triggers a cascade of intricate signal transduction events that determine whether a seed germinates or remains dormant. Despite considerable progress in uncovering the molecular mechanisms governing these processes, many questions remain unanswered. In this review, we summarize the current progress in the molecular mechanisms underlying the perception of environmental signals and consequent signal transduction during seed germination, and discuss questions that need to be addressed to better understand the process of seed germination and develop novel strategies for germplasm improvement.
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Affiliation(s)
- Huibin Xu
- Marine and Agricultural Biotechnology Laboratory, College of Geography and Oceanography, Minjiang University, Fuzhou, 350108 China
- Ministerial and Provincial Joint Innovation Centre for Safety Production of Cross-Strait Crops, Minjiang University, Fuzhou, 350108 China
| | - Fuxiang Wang
- National Rice Engineering Laboratory of China, Rice Research Institute, Fujian Academy of Agricultural Sciences, Fuzhou, 350003 China
| | | | - Xiaofeng Chen
- Marine and Agricultural Biotechnology Laboratory, College of Geography and Oceanography, Minjiang University, Fuzhou, 350108 China
- Ministerial and Provincial Joint Innovation Centre for Safety Production of Cross-Strait Crops, Minjiang University, Fuzhou, 350108 China
| | - Zhongyuan Lin
- Marine and Agricultural Biotechnology Laboratory, College of Geography and Oceanography, Minjiang University, Fuzhou, 350108 China
- Ministerial and Provincial Joint Innovation Centre for Safety Production of Cross-Strait Crops, Minjiang University, Fuzhou, 350108 China
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24
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Park M, Shin SY, Moon H, Choi W, Shin C. Analysis of the global transcriptome and miRNAome associated with seed dormancy during seed maturation in rice (Oryza sativa L. cv. Nipponbare). BMC PLANT BIOLOGY 2024; 24:215. [PMID: 38532331 DOI: 10.1186/s12870-024-04928-6] [Citation(s) in RCA: 0] [Impact Index Per Article: 0] [Reference Citation Analysis] [Abstract] [Key Words] [Grants] [Track Full Text] [Subscribe] [Scholar Register] [Received: 10/06/2023] [Accepted: 03/19/2024] [Indexed: 03/28/2024]
Abstract
BACKGROUND Seed dormancy is a biological mechanism that prevents germination until favorable conditions for the subsequent generation of plants are encountered. Therefore, this mechanism must be effectively established during seed maturation. Studies investigating the transcriptome and miRNAome of rice embryos and endosperms at various maturation stages to evaluate seed dormancy are limited. This study aimed to compare the transcriptome and miRNAome of rice seeds during seed maturation. RESULTS Oryza sativa L. cv. Nipponbare seeds were sampled for embryos and endosperms at three maturation stages: 30, 45, and 60 days after heading (DAH). The pre-harvest sprouting (PHS) assay was conducted to assess the level of dormancy in the seeds at each maturation stage. At 60 DAH, the PHS rate was significantly increased compared to those at 30 and 45 DAH, indicating that the dormancy is broken during the later maturation stage (45 DAH to 60 DAH). However, the largest number of differentially expressed genes (DEGs) and differentially expressed miRNAs (DEmiRs) were identified between 30 and 60 DAH in the embryo and endosperm, implying that the gradual changes in genes and miRNAs from 30 to 60 DAH may play a significant role in breaking seed dormancy. Gene Ontology (GO) and Kyoto Encyclopedia of Genes and Genomes (KEGG) pathway analyses confirmed that DEGs related to plant hormones were most abundant in the embryo during 45 DAH to 60 DAH and 30 DAH to 60 DAH transitions. Alternatively, most of the DEGs in the endosperm were related to energy and abiotic stress. MapMan analysis and quantitative real-time polymerase chain reaction identified four newly profiled auxin-related genes (OsSAUR6/12/23/25) and one ethylene-related gene (OsERF087), which may be involved in seed dormancy during maturation. Additionally, miRNA target prediction (psRNATarget) and degradome dataset (TarDB) indicated a potential association between osa-miR531b and ethylene biosynthesis gene (OsACO4), along with osa-miR390-5p and the abscisic acid (ABA) exporter-related gene (OsMATE19) as factors involved in seed dormancy. CONCLUSIONS Analysis of the transcriptome and miRNAome of rice embryos and endosperms during seed maturation provided new insights into seed dormancy, particularly its relationship with plant hormones such as ABA, auxin, and ethylene.
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Affiliation(s)
- Minsu Park
- Department of Agricultural Biotechnology, Seoul National University, Seoul, 08826, Republic of Korea
- Research Institute of Agriculture and Life Sciences, Seoul National University, Seoul, 08826, Republic of Korea
| | - Sang-Yoon Shin
- Plant Genomics and Breeding Institute, Seoul National University, Seoul, 08826, Republic of Korea
- Research Center for Plant Plasticity, Seoul National University, Seoul, 08826, Republic of Korea
| | - Hongman Moon
- Department of Agricultural Biotechnology, Seoul National University, Seoul, 08826, Republic of Korea
| | - Woochang Choi
- Department of Agricultural Biotechnology, Seoul National University, Seoul, 08826, Republic of Korea
| | - Chanseok Shin
- Department of Agricultural Biotechnology, Seoul National University, Seoul, 08826, Republic of Korea.
- Research Institute of Agriculture and Life Sciences, Seoul National University, Seoul, 08826, Republic of Korea.
- Plant Genomics and Breeding Institute, Seoul National University, Seoul, 08826, Republic of Korea.
- Research Center for Plant Plasticity, Seoul National University, Seoul, 08826, Republic of Korea.
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25
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Collins E, Shou H, Mao C, Whelan J, Jost R. Dynamic interactions between SPX proteins, the ubiquitination machinery, and signalling molecules for stress adaptation at a whole-plant level. Biochem J 2024; 481:363-385. [PMID: 38421035 DOI: 10.1042/bcj20230163] [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: 10/24/2023] [Revised: 01/31/2024] [Accepted: 02/01/2024] [Indexed: 03/02/2024]
Abstract
The plant macronutrient phosphorus is a scarce resource and plant-available phosphate is limiting in most soil types. Generally, a gene regulatory module called the phosphate starvation response (PSR) enables efficient phosphate acquisition by roots and translocation to other organs. Plants growing on moderate to nutrient-rich soils need to co-ordinate availability of different nutrients and repress the highly efficient PSR to adjust phosphate acquisition to the availability of other macro- and micronutrients, and in particular nitrogen. PSR repression is mediated by a small family of single SYG1/Pho81/XPR1 (SPX) domain proteins. The SPX domain binds higher order inositol pyrophosphates that signal cellular phosphorus status and modulate SPX protein interaction with PHOSPHATE STARVATION RESPONSE1 (PHR1), the central transcriptional regulator of PSR. Sequestration by SPX repressors restricts PHR1 access to PSR gene promoters. Here we focus on SPX4 that primarily acts in shoots and sequesters many transcription factors other than PHR1 in the cytosol to control processes beyond the classical PSR, such as nitrate, auxin, and jasmonic acid signalling. Unlike SPX1 and SPX2, SPX4 is subject to proteasomal degradation not only by singular E3 ligases, but also by SCF-CRL complexes. Emerging models for these different layers of control and their consequences for plant acclimation to the environment will be discussed.
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Affiliation(s)
- Emma Collins
- Department of Animal, Plant and Soil Sciences, School of Agriculture, Biomedicine and Environment, La Trobe University, Bundoora, VIC 3086, Australia
| | - Huixia Shou
- State Key Laboratory of Plant Physiology and Biochemistry, College of Life Sciences, Zhejiang University, Hangzhou, Zhejiang 310058, P.R. China
- Hainan Institute, Zhejiang University, Sanya 572025, China
- The Provincial International Science and Technology Cooperation Base on Engineering Biology, International Campus of Zhejiang University, Haining, Zhejiang 314400, China
| | - Chuanzao Mao
- State Key Laboratory of Plant Physiology and Biochemistry, College of Life Sciences, Zhejiang University, Hangzhou, Zhejiang 310058, P.R. China
| | - James Whelan
- Department of Animal, Plant and Soil Sciences, School of Agriculture, Biomedicine and Environment, La Trobe University, Bundoora, VIC 3086, Australia
- State Key Laboratory of Plant Physiology and Biochemistry, College of Life Sciences, Zhejiang University, Hangzhou, Zhejiang 310058, P.R. China
- The Provincial International Science and Technology Cooperation Base on Engineering Biology, International Campus of Zhejiang University, Haining, Zhejiang 314400, China
| | - Ricarda Jost
- Department of Animal, Plant and Soil Sciences, School of Agriculture, Biomedicine and Environment, La Trobe University, Bundoora, VIC 3086, Australia
- La Trobe Institute for Sustainable Agriculture and Food, La Trobe University, Bundoora, VIC 3086, Australia
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26
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Dallinger HG, Löschenberger F, Azrak N, Ametz C, Michel S, Bürstmayr H. Genome-wide association mapping for pre-harvest sprouting in European winter wheat detects novel resistance QTL, pleiotropic effects, and structural variation in multiple genomes. THE PLANT GENOME 2024; 17:e20301. [PMID: 36851839 DOI: 10.1002/tpg2.20301] [Citation(s) in RCA: 0] [Impact Index Per Article: 0] [Reference Citation Analysis] [Abstract] [MESH Headings] [Grants] [Track Full Text] [Subscribe] [Scholar Register] [Received: 05/31/2022] [Accepted: 11/20/2022] [Indexed: 06/18/2023]
Abstract
Pre-harvest sprouting (PHS), germination of seeds before harvest, is a major problem in global wheat (Triticum aestivum L.) production, and leads to reduced bread-making quality in affected grain. Breeding for PHS resistance can prevent losses under adverse conditions. Selecting resistant lines in years lacking pre-harvest rain, requires challenging of plants in the field or in the laboratory or using genetic markers. Despite the availability of a wheat reference and pan-genome, linking markers, genes, allelic, and structural variation, a complete understanding of the mechanisms underlying various sources of PHS resistance is still lacking. Therefore, we challenged a population of European wheat varieties and breeding lines with PHS conditions and phenotyped them for PHS traits, grain quality, phenological and agronomic traits to conduct genome-wide association mapping. Furthermore, we compared these marker-trait associations to previously reported PHS loci and evaluated their usefulness for breeding. We found markers associated with PHS on all chromosomes, with strong evidence for novel quantitative trait locus/loci (QTL) on chromosome 1A and 5B. The QTL on chromosome 1A lacks pleiotropic effect, for the QTL on 5B we detected pleiotropic effects on phenology and grain quality. Multiple peaks on chromosome 4A co-located with the major resistance locus Phs-A1, for which two causal genes, TaPM19 and TaMKK3, have been proposed. Mapping markers and genes to the pan-genome and chromosomal alignments provide evidence for structural variation around this major PHS-resistance locus. Although PHS is controlled by many loci distributed across the wheat genome, Phs-A1 on chromosome 4A seems to be the most effective and widely deployed source of resistance, in European wheat varieties.
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Affiliation(s)
- Hermann G Dallinger
- Institute of Biotechnology in Plant Production, Department of Agrobiotechnology, IFA-Tulln, University of Natural Resources and Life Sciences Vienna, Konrad-Lorenz-Straße 20, Tulln, Austria
- Saatzucht Donau GesmbH & Co KG, Saatzuchtstrasse 11, Probstdorf, Austria
| | | | - Naim Azrak
- Saatzucht Donau GesmbH & Co KG, Saatzuchtstrasse 11, Probstdorf, Austria
| | - Christian Ametz
- Saatzucht Donau GesmbH & Co KG, Saatzuchtstrasse 11, Probstdorf, Austria
| | - Sebastian Michel
- Institute of Biotechnology in Plant Production, Department of Agrobiotechnology, IFA-Tulln, University of Natural Resources and Life Sciences Vienna, Konrad-Lorenz-Straße 20, Tulln, Austria
| | - Hermann Bürstmayr
- Institute of Biotechnology in Plant Production, Department of Agrobiotechnology, IFA-Tulln, University of Natural Resources and Life Sciences Vienna, Konrad-Lorenz-Straße 20, Tulln, Austria
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27
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Leng F, Zhou G, Shi R, Liu C, Lin Y, Yu X, Zhang Y, He X, Liu Z, Sun M, Bao F, Hu Y, He Y. Development of PEG-mediated genetic transformation and gene editing system of Bryum argenteum as an abiotic stress tolerance model plant. PLANT CELL REPORTS 2024; 43:63. [PMID: 38340191 DOI: 10.1007/s00299-024-03143-9] [Citation(s) in RCA: 0] [Impact Index Per Article: 0] [Reference Citation Analysis] [Abstract] [Key Words] [MESH Headings] [Grants] [Track Full Text] [Subscribe] [Scholar Register] [Received: 09/08/2023] [Accepted: 12/31/2023] [Indexed: 02/12/2024]
Abstract
KEY MESSAGE To establish a sterile culture system and protoplast regeneration system for Bryum argenteum, and to establish and apply CRISPR/Cas9 system in Bryum argenteum. Bryum argenteum is a fascinating, cosmopolitan, and versatile moss species that thrives in various disturbed environments. Because of its comprehensive tolerance to the desiccation, high UV and extreme temperatures, it is emerging as a model moss for studying the molecular mechanisms underlying plant responses to abiotic stresses. However, the lack of basic tools such as gene transformation and targeted genome modification has hindered the understanding of the molecular mechanisms underlying the survival of B. argenteum in different environments. Here, we reported the protonema of B. argenteum can survive up to 95.4% water loss. In addition, the genome size of B. argenteum is approximately 313 Mb by kmer analysis, which is smaller than the previously reported 700 Mb. We also developed a simple method for protonema induction and an efficient protoplast isolation and regeneration protocol for B. argenteum. Furthermore, we established a PEG-mediated protoplast transient transfection and stable transformation system for B. argenteum. Two homologues of ABI3(ABA-INSENSITIVE 3) gene were successfully cloned from B. argenteum. To further investigate the function of the ABI3 gene in B. argenteum, we used the CRISPR/Cas9 genetic editing system to target the BaABI3A and BaABI3B gene in B. argenteum protoplasts. This resulted in mutagenesis at the target in about 2-5% of the regenerated plants. The isolated abi3a and abi3b mutants exhibited increased sensitivity to desiccation, suggesting that BaABI3A and BaABI3B play redundant roles in desiccation stress. Overall, our results provide a rapid and simple approach for molecular genetics in B. argenteum. This study contributes to a better understanding of the molecular mechanisms of plant adaptation to extreme environmental.
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Affiliation(s)
- Fengjun Leng
- Key Laboratory of Plant Gene Resources and Biotechnology for Carbon Reduction and Environmental Improvement, Beijing Municipal Government, and College of Life Sciences, Capital Normal University, Beijing, 100048, China
| | - Guiwei Zhou
- Key Laboratory of Plant Gene Resources and Biotechnology for Carbon Reduction and Environmental Improvement, Beijing Municipal Government, and College of Life Sciences, Capital Normal University, Beijing, 100048, China
| | - Ruoyuan Shi
- Key Laboratory of Plant Gene Resources and Biotechnology for Carbon Reduction and Environmental Improvement, Beijing Municipal Government, and College of Life Sciences, Capital Normal University, Beijing, 100048, China
| | - Chengyang Liu
- Key Laboratory of Plant Gene Resources and Biotechnology for Carbon Reduction and Environmental Improvement, Beijing Municipal Government, and College of Life Sciences, Capital Normal University, Beijing, 100048, China
| | - Yirui Lin
- Key Laboratory of Plant Gene Resources and Biotechnology for Carbon Reduction and Environmental Improvement, Beijing Municipal Government, and College of Life Sciences, Capital Normal University, Beijing, 100048, China
| | - Xinqiang Yu
- Key Laboratory of Plant Gene Resources and Biotechnology for Carbon Reduction and Environmental Improvement, Beijing Municipal Government, and College of Life Sciences, Capital Normal University, Beijing, 100048, China
| | - Yanhua Zhang
- Key Laboratory of Plant Gene Resources and Biotechnology for Carbon Reduction and Environmental Improvement, Beijing Municipal Government, and College of Life Sciences, Capital Normal University, Beijing, 100048, China
| | - Xiangxi He
- Key Laboratory of Plant Gene Resources and Biotechnology for Carbon Reduction and Environmental Improvement, Beijing Municipal Government, and College of Life Sciences, Capital Normal University, Beijing, 100048, China
| | - Zhu Liu
- Key Laboratory of Plant Gene Resources and Biotechnology for Carbon Reduction and Environmental Improvement, Beijing Municipal Government, and College of Life Sciences, Capital Normal University, Beijing, 100048, China
| | - Mingming Sun
- Laboratory for Micro-Sized Functional Materials, College of Elementary Education, Capital Normal University, Beijing, 100048, China
| | - Fang Bao
- Key Laboratory of Plant Gene Resources and Biotechnology for Carbon Reduction and Environmental Improvement, Beijing Municipal Government, and College of Life Sciences, Capital Normal University, Beijing, 100048, China.
| | - Yong Hu
- Key Laboratory of Plant Gene Resources and Biotechnology for Carbon Reduction and Environmental Improvement, Beijing Municipal Government, and College of Life Sciences, Capital Normal University, Beijing, 100048, China.
| | - Yikun He
- Key Laboratory of Plant Gene Resources and Biotechnology for Carbon Reduction and Environmental Improvement, Beijing Municipal Government, and College of Life Sciences, Capital Normal University, Beijing, 100048, China
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Tognacca RS, Ljung K, Botto JF. Unveiling Molecular Signatures in Light-Induced Seed Germination: Insights from PIN3, PIN7, and AUX1 in Arabidopsis thaliana. PLANTS (BASEL, SWITZERLAND) 2024; 13:408. [PMID: 38337941 PMCID: PMC10856848 DOI: 10.3390/plants13030408] [Citation(s) in RCA: 0] [Impact Index Per Article: 0] [Reference Citation Analysis] [Abstract] [Key Words] [Track Full Text] [Subscribe] [Scholar Register] [Received: 12/27/2023] [Revised: 01/24/2024] [Accepted: 01/25/2024] [Indexed: 02/12/2024]
Abstract
Light provides seeds with information that is essential for the adjustment of their germination to the conditions that are most favorable for the successful establishment of the future seedling. The promotion of germination depends mainly on environmental factors, like temperature and light, as well as internal factors associated with the hormonal balance between gibberellins (GA) and abscisic acid (ABA), although other hormones such as auxins may act secondarily. While transcriptomic studies of light-germinating Arabidopsis thaliana seeds suggest that auxins and auxin transporters are necessary, there are still no functional studies connecting the activity of the auxin transporters in light-induced seed germination. In this study, we investigated the roles of two auxin efflux carrier (PIN3 and PIN7) proteins and one auxin influx (AUX1) carrier protein during Arabidopsis thaliana seed germination. By using next-generation sequencing (RNAseq), gene expression analyses, hormonal sensitivity assays, and the quantification of indole-3-acetic acid (IAA) levels, we assessed the functional roles of PIN3, PIN7, and AUX1 during light-induced seed germination. We showed that auxin levels are increased 24 h after a red-pulse (Rp). Additionally, we evaluated the germination responses of pin3, pin7, and aux1 mutant seeds and showed that PIN3, PIN7, and AUX1 auxin carriers are important players in the regulation of seed germination. By using gene expression analysis in water, fluridone (F), and ABA+F treated seeds, we confirmed that Rp-induced seed germination is associated with auxin transport, and ABA controls the function of PIN3, PIN7, and AUX1 during this process. Overall, our results highlight the relevant and positive role of auxin transporters in germinating the seeds of Arabidopsis thaliana.
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Affiliation(s)
- Rocío Soledad Tognacca
- Instituto de Investigaciones Fisiológicas y Ecológicas Vinculadas a la Agricultura (IFEVA), Consejo Nacional de Investigaciones Científicas y Técnicas (CONICET), Facultad de Agronomía, Universidad de Buenos Aires (UBA), Buenos Aires C1417DSE, Argentina
- Departamento de Fisiología, Biología, Molecular, y Celular, Facultad de Ciencias Exactas y Naturales, Universidad de Buenos Aires, Buenos Aires C1428EGA, Argentina
- Instituto de Fisiología, Biología Molecular y Neurociencias (IFIBYNE), Consejo Nacional de Investigaciones Científicas y Técnicas (CONICET), Universidad de Buenos Aires, Buenos Aires C1428EHA, Argentina
| | - Karin Ljung
- Umeå Plant Science Centre, Department of Forest Genetics and Plant Physiology, Swedish University of Agricultural Sciences, SE-901 83 Umeå, Sweden;
| | - Javier Francisco Botto
- Instituto de Investigaciones Fisiológicas y Ecológicas Vinculadas a la Agricultura (IFEVA), Consejo Nacional de Investigaciones Científicas y Técnicas (CONICET), Facultad de Agronomía, Universidad de Buenos Aires (UBA), Buenos Aires C1417DSE, Argentina
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29
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Zhang MJ, Xue YY, Xu S, Jin XR, Man XC. Identification of ARF genes in Cucurbita pepo L and analysis of expression patterns, and functional analysis of CpARF22 under drought, salt stress. BMC Genomics 2024; 25:112. [PMID: 38273235 PMCID: PMC10809590 DOI: 10.1186/s12864-024-09992-8] [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: 09/04/2023] [Accepted: 01/08/2024] [Indexed: 01/27/2024] Open
Abstract
BACKGROUND Auxin transcription factor (ARF) is an important transcription factor that transmits auxin signals and is involved in plant growth and development as well as stress response. However, genome-wide identification and responses to abiotic and pathogen stresses of the ARF gene family in Cucurbita pepo L, especially pathogen stresses, have not been reported. RESULTS Finally, 33 ARF genes (CpARF01 to CpARF33) were identified in C.pepo from the Cucurbitaceae genome database using bioinformatics methods. The putative protein contains 438 to 1071 amino acids, the isoelectric point is 4.99 to 8.54, and the molecular weight is 47759.36 to 117813.27 Da, the instability index ranged from 40.74 to 68.94, and the liposoluble index ranged from 62.56 to 76.18. The 33 genes were mainly localized in the nucleus and cytoplasm, and distributed on 16 chromosomes unevenly. Phylogenetic analysis showed that 33 CpARF proteins were divided into 6 groups. According to the amino acid sequence of CpARF proteins, 10 motifs were identified, and 1,3,6,8,10 motifs were highly conserved in most of the CpARF proteins. At the same time, it was found that genes in the same subfamily have similar gene structures. Cis-elements and protein interaction networks predicted that CpARF may be involved in abiotic factors related to the stress response. QRT-PCR analysis showed that most of the CpARF genes were upregulated under NaCl, PEG, and pathogen treatment compared to the control. Subcellular localization showed that CpARF22 was localized in the nucleus. The transgenic Arabidopsis thaliana lines with the CpARF22 gene enhanced their tolerance to salt and drought stress. CONCLUSION In this study, we systematically analyzed the CpARF gene family and its expression patterns under drought, salt, and pathogen stress, which improved our understanding of the ARF protein of zucchini, and laid a solid foundation for functional analysis of the CpARF gene.
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Affiliation(s)
- Ming-Jun Zhang
- College of Plant Protection, Gansu Agricultural University, Lanzhou, 730070, China
- Biocontrol Engineering Laboratory of Crop Diseases and Pests of Gansu Province, Gansu Agricultural University, Lanzhou, 730070, China
| | - Ying-Yu Xue
- College of Plant Protection, Gansu Agricultural University, Lanzhou, 730070, China.
- Biocontrol Engineering Laboratory of Crop Diseases and Pests of Gansu Province, Gansu Agricultural University, Lanzhou, 730070, China.
| | - Shuang Xu
- College of Plant Protection, Gansu Agricultural University, Lanzhou, 730070, China
- Biocontrol Engineering Laboratory of Crop Diseases and Pests of Gansu Province, Gansu Agricultural University, Lanzhou, 730070, China
| | - Xuan-Ru Jin
- College of Plant Protection, Gansu Agricultural University, Lanzhou, 730070, China
- Biocontrol Engineering Laboratory of Crop Diseases and Pests of Gansu Province, Gansu Agricultural University, Lanzhou, 730070, China
| | - Xing-Chu Man
- College of Plant Protection, Gansu Agricultural University, Lanzhou, 730070, China
- Biocontrol Engineering Laboratory of Crop Diseases and Pests of Gansu Province, Gansu Agricultural University, Lanzhou, 730070, China
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Hu B, Yang N, Zhou Z, Shi X, Qin Y, Fang Y, Long X. Transcriptome analysis reveals the molecular mechanisms of rubber biosynthesis and laticifer differentiation during rubber seed germination. FRONTIERS IN PLANT SCIENCE 2024; 15:1337451. [PMID: 38328702 PMCID: PMC10847244 DOI: 10.3389/fpls.2024.1337451] [Citation(s) in RCA: 0] [Impact Index Per Article: 0] [Reference Citation Analysis] [Abstract] [Key Words] [Track Full Text] [Figures] [Subscribe] [Scholar Register] [Received: 11/13/2023] [Accepted: 01/03/2024] [Indexed: 02/09/2024]
Abstract
The molecular mechanisms underlying the initiation of natural rubber synthesis and laticifer differentiation have not been fully elucidated. In this study, we conducted a time-series transcriptome analysis of five rubber tree tissues at four stages of seed germination. A total of 161,199 DEGs were identified between the two groups, including most 16,673 DEGs (A3 vs B3 and A3 vs C3) and lest 1,210 DEGs (C2 vs D2). We found that the maturation of the seed is accompanied by the formation of laticifer cells in cotyledon. Meanwhile, the analysis of hormones related genes expression may provide effective clues for us to promote the differentiation of laticifer cells in seeds by hormones in the future. In this study, hormone-related gene enrichment analyses revealed that IAA, GA, and CTK were activated in laticifer containing tissues. Similarly, GO and GEGG analysis showed that hormone pathways, especially the auxin pathway, are enriched. Gene expression clustering was analyzed using the short time-series expression miner (STEM), and the analysis revealed four distinct trends in the gene expression profiles. Moreover, we enriched transcription factor (TF) enrichment in cotyledon and embryonic axis tissues, and the MYB type exhibited the most significant difference. Furthermore, our findings revealed that genes related to rubber synthesis exhibited tissue-specific expression patterns during seed germination. Notably, key genes associated with rubber biosynthesis, specifically small rubber particle protein (SRPP) and cis-prenyltransferase (CPT), exhibited significant changes in expression in cotyledon and embryonic axis tissues, suggesting synchronous rubber synthesis with seed germination. Our staining results reveled that laticifer cells were exits in the cotyledon before seed imbibition stage. In conclusion, these results lay the foundation for exploring the molecular mechanisms underlying laticifer differentiation and rubber synthesis during seed germination, deepening our understanding of the initiation stages of rubber biosynthesis and laticifer differentiation.
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Affiliation(s)
- Bin Hu
- National Key Laboratory for Tropical Crop Breeding, Ministry of Agriculture Key Laboratory of Biology and Genetic Resources of Rubber Tree, State Key Laboratory Breeding Base of Cultivation and Physiology for Tropical Crops, Rubber Research Institute, Sanya Research Institute of Chinese Academy of Tropical Agricultural Sciences, Haikou, China
- National Key Laboratory of Crop Genetic Improvement and National Center of Plant Gene Research (Wuhan), Huazhong Agricultural University, Wuhan, China
| | - Na Yang
- National Key Laboratory for Tropical Crop Breeding, Ministry of Agriculture Key Laboratory of Biology and Genetic Resources of Rubber Tree, State Key Laboratory Breeding Base of Cultivation and Physiology for Tropical Crops, Rubber Research Institute, Sanya Research Institute of Chinese Academy of Tropical Agricultural Sciences, Haikou, China
| | - Zaihui Zhou
- National Key Laboratory of Crop Genetic Improvement and National Center of Plant Gene Research (Wuhan), Huazhong Agricultural University, Wuhan, China
| | - Xiangyu Shi
- Danxin College, Hainan University, Danzhou, China
| | - Yunxia Qin
- National Key Laboratory for Tropical Crop Breeding, Ministry of Agriculture Key Laboratory of Biology and Genetic Resources of Rubber Tree, State Key Laboratory Breeding Base of Cultivation and Physiology for Tropical Crops, Rubber Research Institute, Sanya Research Institute of Chinese Academy of Tropical Agricultural Sciences, Haikou, China
- National Key Laboratory of Crop Genetic Improvement and National Center of Plant Gene Research (Wuhan), Huazhong Agricultural University, Wuhan, China
| | - Yongjun Fang
- National Key Laboratory for Tropical Crop Breeding, Ministry of Agriculture Key Laboratory of Biology and Genetic Resources of Rubber Tree, State Key Laboratory Breeding Base of Cultivation and Physiology for Tropical Crops, Rubber Research Institute, Sanya Research Institute of Chinese Academy of Tropical Agricultural Sciences, Haikou, China
| | - Xiangyu Long
- National Key Laboratory for Tropical Crop Breeding, Ministry of Agriculture Key Laboratory of Biology and Genetic Resources of Rubber Tree, State Key Laboratory Breeding Base of Cultivation and Physiology for Tropical Crops, Rubber Research Institute, Sanya Research Institute of Chinese Academy of Tropical Agricultural Sciences, Haikou, China
- National Key Laboratory of Crop Genetic Improvement and National Center of Plant Gene Research (Wuhan), Huazhong Agricultural University, Wuhan, China
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Zeng F, Zheng C, Ge W, Gao Y, Pan X, Ye X, Wu X, Sun Y. Regulatory function of the endogenous hormone in the germination process of quinoa seeds. FRONTIERS IN PLANT SCIENCE 2024; 14:1322986. [PMID: 38259945 PMCID: PMC10801742 DOI: 10.3389/fpls.2023.1322986] [Citation(s) in RCA: 0] [Impact Index Per Article: 0] [Reference Citation Analysis] [Abstract] [Key Words] [Track Full Text] [Figures] [Subscribe] [Scholar Register] [Received: 10/17/2023] [Accepted: 12/08/2023] [Indexed: 01/24/2024]
Abstract
The economic and health significance of quinoa is steadily growing on a global scale. Nevertheless, the primary obstacle to achieving high yields in quinoa cultivation is pre-harvest sprouting (PHS), which is intricately linked to seed dormancy. However, there exists a dearth of research concerning the regulatory mechanisms governing PHS. The regulation of seed germination by various plant hormones has been extensively studied. Consequently, understanding the mechanisms underlying the role of endogenous hormones in the germination process of quinoa seeds and developing strategies to mitigate PHS in quinoa cultivation are of significant research importance. This study employed the HPLC-ESI-MS/MS internal standard and ELISA method to quantify 8 endogenous hormones. The investigation of gene expression changes before and after germination was conducted using RNA-seq analysis, leading to the discovery of 280 differentially expressed genes associated with the regulatory pathway of endogenous hormones. Additionally, a correlation analysis of 99 genes with significant differences identified 14 potential genes that may act as crucial "transportation hubs" in hormonal interactions. Through the performance of an analysis on the modifications in hormone composition and the expression of associated regulatory genes, we posit a prediction that implies the presence of a negative feedback regulatory mechanism of endogenous hormones during the germination of quinoa seeds. This mechanism is potentially influenced by the unique structure of quinoa seeds. To shed light on the involvement of endogenous hormones in the process of quinoa seed germination, we have established a regulatory network. This study aims to offer innovative perspectives on the breeding of quinoa varieties that exhibit resistance to PHS, as well as strategies for preventing PHS.
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Affiliation(s)
| | | | | | | | | | | | - Xiaoyong Wu
- Key Laboratory of Coarse Cereal Processing, Ministry of Agriculture and Rural Affairs, Sichuan Engineering and Technology Research Center of Coarse Cereal Industrialization, School of Food and Biological Engineering, Chengdu University, Chengdu, China
| | - Yanxia Sun
- Key Laboratory of Coarse Cereal Processing, Ministry of Agriculture and Rural Affairs, Sichuan Engineering and Technology Research Center of Coarse Cereal Industrialization, School of Food and Biological Engineering, Chengdu University, Chengdu, China
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32
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Liu Z, Dai H, Hao J, Li R, Pu X, Guan M, Chen Q. Current research and future directions of melatonin's role in seed germination. STRESS BIOLOGY 2023; 3:53. [PMID: 38047984 PMCID: PMC10695909 DOI: 10.1007/s44154-023-00139-5] [Citation(s) in RCA: 2] [Impact Index Per Article: 2.0] [Reference Citation Analysis] [Abstract] [Key Words] [Grants] [Track Full Text] [Subscribe] [Scholar Register] [Received: 08/25/2023] [Accepted: 11/17/2023] [Indexed: 12/05/2023]
Abstract
Seed germination is a complex process regulated by internal and external factors. Melatonin (N-acetyl-5-methoxytryptamine) is a ubiquitous signaling molecule, playing an important role in regulating seed germination under normal and stressful conditions. In this review, we aim to provide a comprehensive overview on melatonin's effects on seed germination on the basis of existing literature. Under normal conditions, exogenous high levels of melatonin can suppress or delay seed germination, suggesting that melatonin may play a role in maintaining seed dormancy and preventing premature germination. Conversely, under stressful conditions (e.g., high salinity, drought, and extreme temperatures), melatonin has been found to accelerate seed germination. Melatonin can modulate the expression of genes involved in ABA and GA metabolism, thereby influencing the balance of these hormones and affecting the ABA/GA ratio. Melatonin has been shown to modulate ROS accumulation and nutrient mobilization, which can impact the germination process. In conclusion, melatonin can inhibit germination under normal conditions while promoting germination under stressful conditions via regulating the ABA/GA ratios, ROS levels, and metabolic enzyme activity. Further research in this area will deepen our understanding of melatonin's intricate role in seed germination and may contribute to the development of improved seed treatments and agricultural practices.
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Affiliation(s)
- Ze Liu
- Faculty of Life Science and Technology, Kunming University of Science and Technology, Kunming, 650500, Yunnan, China
| | - Hengrui Dai
- Faculty of Life Science and Technology, Kunming University of Science and Technology, Kunming, 650500, Yunnan, China
| | - Jinjiang Hao
- Faculty of Life Science and Technology, Kunming University of Science and Technology, Kunming, 650500, Yunnan, China
| | - Rongrong Li
- Faculty of Life Science and Technology, Kunming University of Science and Technology, Kunming, 650500, Yunnan, China
| | - Xiaojun Pu
- Faculty of Life Science and Technology, Kunming University of Science and Technology, Kunming, 650500, Yunnan, China
| | - Miao Guan
- Faculty of Life Science and Technology, Kunming University of Science and Technology, Kunming, 650500, Yunnan, China.
| | - Qi Chen
- Faculty of Life Science and Technology, Kunming University of Science and Technology, Kunming, 650500, Yunnan, China.
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33
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Emenecker RJ, Cammarata J, Yuan I, Howard C, Ebrahimi Naghani S, Robert HS, Nambara E, Strader LC. Abscisic acid biosynthesis is necessary for full auxin effects on hypocotyl elongation. Development 2023; 150:dev202106. [PMID: 37846593 PMCID: PMC10730017 DOI: 10.1242/dev.202106] [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: 06/26/2023] [Accepted: 10/07/2023] [Indexed: 10/18/2023]
Abstract
In concert with other phytohormones, auxin regulates plant growth and development. However, how auxin and other phytohormones coordinately regulate distinct processes is not fully understood. In this work, we uncover an auxin-abscisic acid (ABA) interaction module in Arabidopsis that is specific to coordinating activities of these hormones in the hypocotyl. From our forward genetics screen, we determine that ABA biosynthesis is required for the full effects of auxin on hypocotyl elongation. Our data also suggest that ABA biosynthesis is not required for the inhibitory effects of auxin treatment on root elongation. Our transcriptome analysis identified distinct auxin-responsive genes in root and shoot tissues, which is consistent with differential regulation of growth in these tissues. Further, our data suggest that many gene targets repressed upon auxin treatment require an intact ABA pathway for full repression. Our results support a model in which auxin stimulates ABA biosynthesis to fully regulate hypocotyl elongation.
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Affiliation(s)
- Ryan J. Emenecker
- Department of Biology, Washington University, St. Louis, MO 63130, USA
- Center for Biomolecular Condensates, Washington University, St. Louis, MO 63130, USA
- Center for Engineering Mechanobiology, Washington University, St. Louis, MO 63130, USA
| | | | - Irene Yuan
- Department of Biology, Washington University, St. Louis, MO 63130, USA
| | - Caroline Howard
- Department of Biology, Duke University, Durham, NC 27708, USA
| | - Shekufeh Ebrahimi Naghani
- Mendel Centre for Genomics and Proteomics of Plant Systems, CEITEC MU - Central European Institute of Technology, Masaryk University, 625 00 Brno, Czech Republic
- National Centre for Biomolecular Research, Faculty of Science, Masaryk University, 625 00 Brno, Czechia
| | - Helene S. Robert
- Mendel Centre for Genomics and Proteomics of Plant Systems, CEITEC MU - Central European Institute of Technology, Masaryk University, 625 00 Brno, Czech Republic
| | - Eiji Nambara
- Department of Cell & Systems Biology, University of Toronto, Toronto, ON M5S 3B2, Canada
| | - Lucia C. Strader
- Center for Biomolecular Condensates, Washington University, St. Louis, MO 63130, USA
- Center for Engineering Mechanobiology, Washington University, St. Louis, MO 63130, USA
- Department of Biology, Duke University, Durham, NC 27708, USA
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Liu S, Cai C, Li L, Wen H, Liu J, Li L, Wang Q, Wang X. StSN2 interacts with the brassinosteroid signaling suppressor StBIN2 to maintain tuber dormancy. HORTICULTURE RESEARCH 2023; 10:uhad228. [PMID: 38156286 PMCID: PMC10753161 DOI: 10.1093/hr/uhad228] [Citation(s) in RCA: 0] [Impact Index Per Article: 0] [Reference Citation Analysis] [Abstract] [Grants] [Track Full Text] [Figures] [Subscribe] [Scholar Register] [Received: 07/10/2023] [Accepted: 10/29/2023] [Indexed: 12/30/2023]
Abstract
After harvest, potato tubers undergo an important period of dormancy, which significantly impacts potato quality and seed vigor. StSN2 has been reported as a key gene for maintaining tuber dormancy; in this study, we explored the molecular mechanism by which StSN2 maintains dormancy. StBIN2 was first identified as a candidate protein that interacts with StSN2 by co-immunoprecipitation/mass spectrometry, and both qPCR and enzyme activity experiments showed that StSN2 can promote the StBIN2 expression and activity. In addition, the interaction between StSN2 and StBIN2 was verified by yeast two-hybrid, luciferase complementation experiments and co-immunoprecipitation. Bioinformatics analysis and site-directed mutagenesis confirmed the critical role of cysteine residues of StBIN2 in its binding to StSN2. Similar to that of StSN2, overexpression of StBIN2 extended the dormancy of potato tuber. Interaction between StSN2 and StBIN2 increased the activity of the StBIN2 enzyme, inhibited the expression of StBZR1, and suppressed BR signaling. On the contrary, this interaction promoted the expression of StSnRK2.2/2.3/2.4/2.6 and StABI5, key genes of ABA signaling, and the phosphorylation of StSnRK2.3, thereby promoting ABA signaling. Altogether, our results indicate that StSN2 interacts with StBIN2 through key cysteine residues and StBIN2 maintains tuber dormancy by affecting ABA and BR signaling. Findings of this research offer new insights into the molecular mechanism by which StSN2 maintains potato tuber dormancy through interaction with StSIN2 and provide guidance for potato improvement.
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Affiliation(s)
- Shifeng Liu
- State Key Laboratory of Crop Gene Exploration and Utilization in Southwest China, Sichuan Agricultural University, Chengdu 611130, China
| | - Chengcheng Cai
- State Key Laboratory of Crop Gene Exploration and Utilization in Southwest China, Sichuan Agricultural University, Chengdu 611130, China
| | - Luopin Li
- State Key Laboratory of Crop Gene Exploration and Utilization in Southwest China, Sichuan Agricultural University, Chengdu 611130, China
| | - He Wen
- State Key Laboratory of Crop Gene Exploration and Utilization in Southwest China, Sichuan Agricultural University, Chengdu 611130, China
| | - Jie Liu
- State Key Laboratory of Crop Gene Exploration and Utilization in Southwest China, Sichuan Agricultural University, Chengdu 611130, China
| | - Liqin Li
- State Key Laboratory of Crop Gene Exploration and Utilization in Southwest China, Sichuan Agricultural University, Chengdu 611130, China
| | - Qiang Wang
- State Key Laboratory of Crop Gene Exploration and Utilization in Southwest China, Sichuan Agricultural University, Chengdu 611130, China
| | - Xiyao Wang
- State Key Laboratory of Crop Gene Exploration and Utilization in Southwest China, Sichuan Agricultural University, Chengdu 611130, China
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Ahmed MIY, Gorafi YSA, Kamal NM, Balla MY, Tahir ISA, Zheng L, Kawakami N, Tsujimoto H. Mining Aegilops tauschii genetic diversity in the background of bread wheat revealed a novel QTL for seed dormancy. FRONTIERS IN PLANT SCIENCE 2023; 14:1270925. [PMID: 38107013 PMCID: PMC10723804 DOI: 10.3389/fpls.2023.1270925] [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: 08/01/2023] [Accepted: 11/14/2023] [Indexed: 12/19/2023]
Abstract
Due to the low genetic diversity in the current wheat germplasm, gene mining from wild relatives is essential to develop new wheat cultivars that are more resilient to the changing climate. Aegilops tauschii, the D-genome donor of bread wheat, is a great gene source for wheat breeding; however, identifying suitable genes from Ae. tauschii is challenging due to the different morphology and the wide intra-specific variation within the species. In this study, we developed a platform for the systematic evaluation of Ae. tauschii traits in the background of the hexaploid wheat cultivar 'Norin 61' and thus for the identification of QTLs and genes. To validate our platform, we analyzed the seed dormancy trait that confers resistance to preharvest sprouting. We used a multiple synthetic derivative (MSD) population containing a genetic diversity of 43 Ae. tauschii accessions representing the full range of the species. Our results showed that only nine accessions in the population provided seed dormancy, and KU-2039 from Afghanistan had the highest level of seed dormancy. Therefore, 166 backcross inbred lines (BILs) were developed by crossing the synthetic wheat derived from KU-2039 with 'Norin 61' as the recurrent parent. The QTL mapping revealed one novel QTL, Qsd.alrc.5D, associated with dormancy explaining 41.7% of the phenotypic variation and other five unstable QTLs, two of which have already been reported. The Qsd.alrc.5D, identified for the first time within the natural variation of wheat, would be a valuable contribution to breeding after appropriate validation. The proposed platform that used the MSD population derived from the diverse Ae. tauschii gene pool and recombinant inbred lines proved to be a valuable platform for mining new and important QTLs or alleles, such as the novel seed dormancy QTL identified here. Likewise, such a platform harboring genetic diversity from wheat wild relatives could be a useful source for mining agronomically important traits, especially in the era of climate change and the narrow genetic diversity within the current wheat germplasm.
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Affiliation(s)
| | - Yasir Serag Alnor Gorafi
- International Platform for Dryland Research and Education, Tottori University, Tottori, Japan
- Gezira Research Station, Agricultural Research Corporation (ARC), Wad-Medani, Sudan
| | - Nasrein Mohamed Kamal
- Gezira Research Station, Agricultural Research Corporation (ARC), Wad-Medani, Sudan
- Arid Land Research Center, Tottori University, Tottori, Japan
| | - Mohammed Yousif Balla
- Gezira Research Station, Agricultural Research Corporation (ARC), Wad-Medani, Sudan
- Arid Land Research Center, Tottori University, Tottori, Japan
| | - Izzat Sidahmed Ali Tahir
- Gezira Research Station, Agricultural Research Corporation (ARC), Wad-Medani, Sudan
- Arid Land Research Center, Tottori University, Tottori, Japan
| | - Lipeng Zheng
- Department of Life Sciences, School of Agriculture, Meiji University, Kawasaki, Japan
| | - Naoto Kawakami
- Department of Life Sciences, School of Agriculture, Meiji University, Kawasaki, Japan
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36
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Liu X, Li N, Chen A, Saleem N, Jia Q, Zhao C, Li W, Zhang M. FUSCA3-induced AINTEGUMENTA-like 6 manages seed dormancy and lipid metabolism. PLANT PHYSIOLOGY 2023; 193:1091-1108. [PMID: 37418568 DOI: 10.1093/plphys/kiad397] [Citation(s) in RCA: 3] [Impact Index Per Article: 3.0] [Reference Citation Analysis] [Abstract] [MESH Headings] [Track Full Text] [Subscribe] [Scholar Register] [Received: 01/05/2023] [Revised: 06/16/2023] [Accepted: 06/18/2023] [Indexed: 07/09/2023]
Abstract
FUSCA 3 (FUS3), a seed master regulator, plays critical role in seed dormancy and oil accumulation. However, its downstream regulation mechanisms remain poorly understood. Here, we explored the roles of AINTEGUMENTA-like 6 (AIL6), a seed transcription factor, in these processes. The activation of AIL6 by FUS3 was demonstrated by dual-LUC assay. Seeds of ail6 mutants showed alterations in fatty acid compositions, and both AtAIL6 (AIL6 from Arabidopsis thaliana) and BnaAIL6 (AIL6 from Brassica napus) rescued the phenotype. Over-expression (OE) of AIL6s reversed changes in seed fatty acid composition. Notably, OE lines showed low seed germination rates down to 12% compared to 100% of wild-type Col-0. Transcriptome analysis of the mutant and an OE line indicated widespread expression changes of genes involved in lipid metabolism and phytohormone pathways. In OE mature seeds, GA4 content decreased more than 15-fold, while abscisic acid and indole-3-acetic acid (IAA) contents clearly increased. Exogenous GA3 treatments did not effectively rescue the low germination rate. Nicking seed coats increased germination rates from 25% to nearly 80% while the wild-type rdr6-11 is 100% and 98% respectively, and elongation of storage time also improved seed germination. Furthermore, dormancy imposed by AIL6 was fully released in the della quintuple mutant. Together, our results indicate AIL6 acts as a manager downstream of FUS3 in seed dormancy and lipid metabolism.
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Affiliation(s)
- Xiangling Liu
- College of Agronomy, Northwest A&F University, Yangling, Shaanxi 712100, China
| | - Na Li
- College of Agronomy, Northwest A&F University, Yangling, Shaanxi 712100, China
| | - Aoyu Chen
- College of Agronomy, Northwest A&F University, Yangling, Shaanxi 712100, China
| | - Noor Saleem
- College of Agronomy, Northwest A&F University, Yangling, Shaanxi 712100, China
| | - Qingli Jia
- College of Agronomy, Northwest A&F University, Yangling, Shaanxi 712100, China
| | - Cuizhu Zhao
- College of Agronomy, Northwest A&F University, Yangling, Shaanxi 712100, China
| | - Wenqiang Li
- College of Agronomy, Northwest A&F University, Yangling, Shaanxi 712100, China
| | - Meng Zhang
- College of Agronomy, Northwest A&F University, Yangling, Shaanxi 712100, China
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Chen L, Qin L, Zhang Y, Xu H, Bu Y, Wu R, Liu H, Hao Q, Hu H, Zhou Y, Feng J, Jing Y, Han J, Wang X. Insights from multi-omics integration into seed germination of Taxus chinensis var mairei. Commun Biol 2023; 6:931. [PMID: 37697020 PMCID: PMC10495361 DOI: 10.1038/s42003-023-05307-x] [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: 05/24/2023] [Accepted: 08/31/2023] [Indexed: 09/13/2023] Open
Abstract
The transition from deep dormancy to seed germination is essential for the life cycle of plants, but how this process occurs in the gymnosperm Chinese yew (Taxus chinensis var mairei), the natural source of the anticancer drug paclitaxel, remains unclear. Herein, we analyse the transcriptome, proteome, spatial metabolome, and spatial lipidome of the Chinese yew and present the multi-omics profiles of dormant and germinating seeds. Our results show that abscisic acid and gibberellic acid 12 homoeostasis is closely associated with gene transcription and protein translation, and the balance between these phytohormones thereby determines if seeds remain dormant or germinate. We find that an energy supply of carbohydrates from glycolysis and the TCA cycle feed into the pentose phosphate pathway during seed germination, and energy supplied from lipids are mainly derived from the lipolysis of triacylglycerols. Using mass spectrometry imaging, we demonstrate that the spatial distribution of plant hormones and phospholipids has a remarkable influence on embryo development. We also provide an atlas of the spatial distribution of paclitaxel C in Chinese yew seeds for the first time. The data from this study enable exploration of the germination mechanism of Chinese yew seeds across several omics levels.
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Affiliation(s)
- Lulu Chen
- College of Life and Environmental Sciences, Centre for Imaging & Systems Biology, Minzu University of China, 100081, Beijing, China
- National Engineering Research Center of Tree Breeding and Ecological Restoration, College of Biological Sciences and Biotechnology, Beijing Forestry University, 100083, Beijing, China
| | - Liang Qin
- College of Life and Environmental Sciences, Centre for Imaging & Systems Biology, Minzu University of China, 100081, Beijing, China
- Key Laboratory of Mass Spectrometry Imaging and Metabolomics (Minzu University of China), State Ethnic Affairs Commission, 100081, Beijing, China
| | - Yawen Zhang
- College of Life and Environmental Sciences, Centre for Imaging & Systems Biology, Minzu University of China, 100081, Beijing, China
- Key Laboratory of Mass Spectrometry Imaging and Metabolomics (Minzu University of China), State Ethnic Affairs Commission, 100081, Beijing, China
| | - Hualei Xu
- College of Life and Environmental Sciences, Centre for Imaging & Systems Biology, Minzu University of China, 100081, Beijing, China
- Key Laboratory of Mass Spectrometry Imaging and Metabolomics (Minzu University of China), State Ethnic Affairs Commission, 100081, Beijing, China
| | - Yufen Bu
- National Engineering Research Center of Tree Breeding and Ecological Restoration, College of Biological Sciences and Biotechnology, Beijing Forestry University, 100083, Beijing, China
- Key Laboratory of Genetics and Breeding in Forest Trees and Ornamental Plants, Ministry of Education, College of Biological Sciences and Biotechnology, Beijing Forestry University, 100083, Beijing, China
| | - Ran Wu
- College of Life and Environmental Sciences, Centre for Imaging & Systems Biology, Minzu University of China, 100081, Beijing, China
- Key Laboratory of Mass Spectrometry Imaging and Metabolomics (Minzu University of China), State Ethnic Affairs Commission, 100081, Beijing, China
| | - Haiqiang Liu
- College of Life and Environmental Sciences, Centre for Imaging & Systems Biology, Minzu University of China, 100081, Beijing, China
- Key Laboratory of Mass Spectrometry Imaging and Metabolomics (Minzu University of China), State Ethnic Affairs Commission, 100081, Beijing, China
| | - Qichen Hao
- College of Life and Environmental Sciences, Centre for Imaging & Systems Biology, Minzu University of China, 100081, Beijing, China
- Key Laboratory of Mass Spectrometry Imaging and Metabolomics (Minzu University of China), State Ethnic Affairs Commission, 100081, Beijing, China
| | - Hao Hu
- College of Life and Environmental Sciences, Centre for Imaging & Systems Biology, Minzu University of China, 100081, Beijing, China
- Key Laboratory of Mass Spectrometry Imaging and Metabolomics (Minzu University of China), State Ethnic Affairs Commission, 100081, Beijing, China
| | - Yijun Zhou
- College of Life and Environmental Sciences, Centre for Imaging & Systems Biology, Minzu University of China, 100081, Beijing, China
- Key Laboratory of Mass Spectrometry Imaging and Metabolomics (Minzu University of China), State Ethnic Affairs Commission, 100081, Beijing, China
| | - Jinchao Feng
- College of Life and Environmental Sciences, Centre for Imaging & Systems Biology, Minzu University of China, 100081, Beijing, China
- Key Laboratory of Mass Spectrometry Imaging and Metabolomics (Minzu University of China), State Ethnic Affairs Commission, 100081, Beijing, China
| | - Yanping Jing
- National Engineering Research Center of Tree Breeding and Ecological Restoration, College of Biological Sciences and Biotechnology, Beijing Forestry University, 100083, Beijing, China.
- Key Laboratory of Genetics and Breeding in Forest Trees and Ornamental Plants, Ministry of Education, College of Biological Sciences and Biotechnology, Beijing Forestry University, 100083, Beijing, China.
| | - Jun Han
- Genome British Columbia Proteomics Centre, University of Victoria, Victoria, BC, V8Z 7X8, Canada.
- Division of Medical Sciences, University of Victoria, Victoria, BC, V8P 5C2, Canada.
| | - Xiaodong Wang
- College of Life and Environmental Sciences, Centre for Imaging & Systems Biology, Minzu University of China, 100081, Beijing, China.
- Key Laboratory of Mass Spectrometry Imaging and Metabolomics (Minzu University of China), State Ethnic Affairs Commission, 100081, Beijing, China.
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Fu X, Lv CY, Zhang YY, Ai XZ, Bi HG. Comparative transcriptome analysis of grafting to improve chilling tolerance of cucumber. PROTOPLASMA 2023; 260:1349-1364. [PMID: 36949344 DOI: 10.1007/s00709-023-01854-6] [Citation(s) in RCA: 0] [Impact Index Per Article: 0] [Reference Citation Analysis] [Abstract] [Key Words] [MESH Headings] [Grants] [Track Full Text] [Subscribe] [Scholar Register] [Received: 10/04/2022] [Accepted: 03/13/2023] [Indexed: 06/18/2023]
Abstract
Grafting with pumpkin as rootstock could improve chilling tolerance of cucumber; however, the underlying mechanism of grafting-induced chilling tolerance remains unclear. Here, we analyzed the difference of physiological and transcriptional level between own-rooted (Cs/Cs) and hetero-grafted (Cs/Cm) cucumber seedlings under chilling stress. The results showed that grafting with pumpkin significantly alleviated the chilling injury as evidenced by slightly symptoms, lower contents of electrolyte leakage (EL), malondialdehyde (MDA), hydrogen peroxide (H2O2), and superoxide anion (O2-) and higher relative water content in Cs/Cm seedlings compared with Cs/Cs seedlings under chilling stress. RNA-seq data showed that grafting induced more DGEs at 8 °C/5 °C compared with 25 °C/18 °C. In accordance with the increase of the activities of antioxidant enzymes (SOD, POD, CAT, APX), grafting upregulated the expression of the regulated redox-related genes such as GST, SOD, and APX. Moreover, grafting increased the expression of genes participated in central carbon metabolism to promote the conversion and decomposition of sugar, which provided more energy for the growth of Cs/Cm seedlings under chilling stress. In addition, grafting regulated the genes involved in the intracellular signal transduction pathways such as calcium signal (CAML, CML, and CDPK) and inositol phospholipid signal (PLC), as well as changed the gene expression of plant hormone signal transduction pathways (ARF, GAI, ABF, and PYR/PYL). These results provide a physiological and transcriptional basis for the molecular mechanism of grafting-induced chilling tolerance of cucumber seedlings.
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Affiliation(s)
- Xin Fu
- State Key Laboratory of Crop Biology, Key Laboratory of Crop Biology and Genetic Improvement of Horticultural Crops in Huanghuai Region, College of Horticulture Science and Engineering, Shandong Agricultural University, Tai'an, 271018, Shandong, China
| | - Chun-Yu Lv
- State Key Laboratory of Crop Biology, Key Laboratory of Crop Biology and Genetic Improvement of Horticultural Crops in Huanghuai Region, College of Horticulture Science and Engineering, Shandong Agricultural University, Tai'an, 271018, Shandong, China
| | - Yan-Yan Zhang
- State Key Laboratory of Crop Biology, Key Laboratory of Crop Biology and Genetic Improvement of Horticultural Crops in Huanghuai Region, College of Horticulture Science and Engineering, Shandong Agricultural University, Tai'an, 271018, Shandong, China
- Tai'an Academy of Agricultural Sciences, Tai'an, 271000, China
| | - Xi-Zhen Ai
- State Key Laboratory of Crop Biology, Key Laboratory of Crop Biology and Genetic Improvement of Horticultural Crops in Huanghuai Region, College of Horticulture Science and Engineering, Shandong Agricultural University, Tai'an, 271018, Shandong, China
| | - Huan-Gai Bi
- State Key Laboratory of Crop Biology, Key Laboratory of Crop Biology and Genetic Improvement of Horticultural Crops in Huanghuai Region, College of Horticulture Science and Engineering, Shandong Agricultural University, Tai'an, 271018, Shandong, China.
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39
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Zhang Y, Liu P, Zou C, Chen Z, Yuan G, Gao S, Pan G, Shen Y, Ma L. Comprehensive analysis of transcriptional data on seed germination of two maize inbred lines under low-temperature conditions. PLANT PHYSIOLOGY AND BIOCHEMISTRY : PPB 2023; 201:107874. [PMID: 37429215 DOI: 10.1016/j.plaphy.2023.107874] [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: 02/23/2023] [Revised: 06/27/2023] [Accepted: 06/29/2023] [Indexed: 07/12/2023]
Abstract
Seed germination directly affect maize yield and grain quality. Low-temperature reduces maize yield by affecting seed germination and seedling growth. However, the molecular mechanism of maize seed germination under low-temperature remains unclear. In this study, the transcriptome data of two maize inbred lines SCL127 (chilling-sensitive) and SCL326 (chilling-tolerant) were analyzed at five time points (0 H, 4 H, 12 H, 24 H, and 48 H) under low-temperature conditions. Through the comparison of SCL127-0 H-vs-SCL326-0 H (Group I), SCL127-4 H-vs-SCL326-4 H (Group Ⅱ), SCL127-12 H-vs-SCL326-12 H (Group Ⅲ), SCL127-24 H-vs-SCL326-24 H (Group Ⅳ), and SCL127-48 H-vs SCL326-48 H (Group Ⅴ), a total of 8,526 differentially expressed genes (DEGs) were obtained. Weighted correlation network analysis revealed that Zm00001d010445 was the hub gene involved in seed germination under low-temperature conditions. Zm00001d010445-based association analysis showed that Hap Ⅱ (G) was the excellent haplotype for seed germination under low-temperature conditions. These findings provide a new perspective for the study of the genetic architecture of maize tolerance to low-temperature and contribute to the cultivation of maize varieties with low-temperature tolerance.
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Affiliation(s)
- Yinchao Zhang
- State Key Laboratory of Crop Gene Exploration and Utilization in Southwest China, Maize Research Institute, Sichuan Agricultural University, Chengdu, 611130, China; Tobacco Research Institute, Chinese Academy of Agricultural Sciences, Qingdao, 266101, China
| | - Peng Liu
- State Key Laboratory of Crop Gene Exploration and Utilization in Southwest China, Maize Research Institute, Sichuan Agricultural University, Chengdu, 611130, China
| | - Chaoying Zou
- State Key Laboratory of Crop Gene Exploration and Utilization in Southwest China, Maize Research Institute, Sichuan Agricultural University, Chengdu, 611130, China
| | - Zhong Chen
- State Key Laboratory of Crop Gene Exploration and Utilization in Southwest China, Maize Research Institute, Sichuan Agricultural University, Chengdu, 611130, China
| | - Guangsheng Yuan
- State Key Laboratory of Crop Gene Exploration and Utilization in Southwest China, Maize Research Institute, Sichuan Agricultural University, Chengdu, 611130, China
| | - Shibin Gao
- State Key Laboratory of Crop Gene Exploration and Utilization in Southwest China, Maize Research Institute, Sichuan Agricultural University, Chengdu, 611130, China
| | - Guangtang Pan
- State Key Laboratory of Crop Gene Exploration and Utilization in Southwest China, Maize Research Institute, Sichuan Agricultural University, Chengdu, 611130, China
| | - Yaou Shen
- State Key Laboratory of Crop Gene Exploration and Utilization in Southwest China, Maize Research Institute, Sichuan Agricultural University, Chengdu, 611130, China.
| | - Langlang Ma
- State Key Laboratory of Crop Gene Exploration and Utilization in Southwest China, Maize Research Institute, Sichuan Agricultural University, Chengdu, 611130, China.
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40
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Sybilska E, Daszkowska-Golec A. A complex signaling trio in seed germination: Auxin-JA-ABA. TRENDS IN PLANT SCIENCE 2023; 28:873-875. [PMID: 37208202 DOI: 10.1016/j.tplants.2023.05.003] [Citation(s) in RCA: 3] [Impact Index Per Article: 3.0] [Reference Citation Analysis] [Abstract] [Key Words] [MESH Headings] [Track Full Text] [Subscribe] [Scholar Register] [Received: 04/06/2023] [Revised: 05/05/2023] [Accepted: 05/09/2023] [Indexed: 05/21/2023]
Abstract
Recently. Mei et al. discovered the molecular mechanism behind the synergistic action of auxins and jasmonates in enhancing the role of abscisic acid (ABA) in seed germination. They found that JASMONATE-ZIM DOMAIN (JAZ) proteins interact with AUXIN RESPONSE FACTOR (ARF)-16 to mediate auxin-jasmonic acid (JA) crosstalk. Furthermore, they revealed that ARF16 interacts with ABSCISIC ACID INSENSITIVE (ABI)-5 and positively modulates ABA responses at seed germination.
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Affiliation(s)
- Ewa Sybilska
- Institute of Biology, Biotechnology and Environmental Protection, Faculty of Natural Sciences, University of Silesia in Katowice, Jagiellońska 28, 40-032 Katowice, Poland
| | - Agata Daszkowska-Golec
- Institute of Biology, Biotechnology and Environmental Protection, Faculty of Natural Sciences, University of Silesia in Katowice, Jagiellońska 28, 40-032 Katowice, Poland.
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41
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Peng C, Wu Y, Cai H, Hu Y, Huang W, Shen Y, Yang H. Methodological and physiological study of seed dormancy release in Tilia henryana. JOURNAL OF PLANT PHYSIOLOGY 2023; 287:154046. [PMID: 37390779 DOI: 10.1016/j.jplph.2023.154046] [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: 05/21/2023] [Revised: 06/20/2023] [Accepted: 06/20/2023] [Indexed: 07/02/2023]
Abstract
Tilia henryana is a rare tree of the Tilia family, found exclusively in China. Its seeds have severe dormancy features that limit its normal conditions of reproduction and renewal. Its seeds have severe dormant characteristics that limit its normal conditions of reproduction and renewal. The Dormancy in T. henryana seeds is a comprehensive dormancy (PY + PD) caused by mechanical and permeability barriers of seed coat and the presence of germination inhibitor in endosperm. L9 (34) orthogonal test was used to determine the best procedure for releasing the dormancy of T. henryana seeds, that is, first treating the seeds with H2SO4 for 15 min, followed by the application of 1 g L-1 GA3, stratification at 5 °C for 45 days, and finally germination at 20 °C, which can achieve a 98% seed germination rate. Large amounts of fat are consumed throughout the dormancy release process. As quantities of protein and starch marginally increase, soluble sugars are continuously decreased. Acid phosphatase and amylase activities increased rapidly, and the combined enzyme activities of G-6-PDH and 6-PGDH related to the PPP were also significantly increased. The levels of GA and ZR continued to increase, while the levels of ABA and IAA gradually decreased, among which GA and ABA changed most rapidly. The total amino acids content continued to decrease. Asp, Cys, Leu, Phe, His, Lys and Arg decreased with dormancy release, while Ser, Glu, Ala, Ile, Pro and Gaba showed an upward trend. The physical dormancy of T. henryana seeds is broken with H2SO4 in order to make the seed coat more permeable, which is a prerequisite for germination. As a result, the seeds can absorb water and engage in physiological metabolic activities, particularly the hydrolysis and metabolism of fat, which supply a significant amount of energy for dormancy release. In addition, rapid variations in the levels of different endogenous hormones and free amino acids, induced by cold stratification and GA3 application, are another important factor promoting the quick physiological activation of seeds and breaking the endosperm barrier.
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Affiliation(s)
- ChenYin Peng
- College of Forestry, Nanjing Forestry University, 159 Longpan Road, Xuanwu District, Nanjing, Jiangsu, 210037, PR China; Co-innovation Center for Sustainable Forestry in Southern China, Southern Tree Inspection Center National Forestry Administration, 159 Longpan Road, Xuanwu District, Nanjing, Jiangsu, 210037, PR China
| | - Yu Wu
- College of Forestry, Nanjing Forestry University, 159 Longpan Road, Xuanwu District, Nanjing, Jiangsu, 210037, PR China; Co-innovation Center for Sustainable Forestry in Southern China, Southern Tree Inspection Center National Forestry Administration, 159 Longpan Road, Xuanwu District, Nanjing, Jiangsu, 210037, PR China
| | - Hao Cai
- College of Forestry, Nanjing Forestry University, 159 Longpan Road, Xuanwu District, Nanjing, Jiangsu, 210037, PR China
| | - YaMei Hu
- College of Forestry, Nanjing Forestry University, 159 Longpan Road, Xuanwu District, Nanjing, Jiangsu, 210037, PR China
| | - WenHui Huang
- College of Forestry, Nanjing Forestry University, 159 Longpan Road, Xuanwu District, Nanjing, Jiangsu, 210037, PR China
| | - YongBao Shen
- College of Forestry, Nanjing Forestry University, 159 Longpan Road, Xuanwu District, Nanjing, Jiangsu, 210037, PR China; Co-innovation Center for Sustainable Forestry in Southern China, Southern Tree Inspection Center National Forestry Administration, 159 Longpan Road, Xuanwu District, Nanjing, Jiangsu, 210037, PR China.
| | - Hui Yang
- Myddelton College, Denbigh, LL16 3EN, United Kingdom
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Zhu P, Li R, Fan W, Xia Z, Li J, Wang C, Zhao A. A mulberry 9- cis-epoxycarotenoid dioxygenase gene MaNCED1 is involved in plant growth regulation and confers salt and drought tolerance in transgenic tobacco. FRONTIERS IN PLANT SCIENCE 2023; 14:1228902. [PMID: 37575921 PMCID: PMC10416802 DOI: 10.3389/fpls.2023.1228902] [Citation(s) in RCA: 0] [Impact Index Per Article: 0] [Reference Citation Analysis] [Abstract] [Key Words] [Track Full Text] [Figures] [Subscribe] [Scholar Register] [Received: 05/25/2023] [Accepted: 07/13/2023] [Indexed: 08/15/2023]
Abstract
The phytohormone abscisic acid (ABA) is vital in regulating root elongation, seed germination, and abiotic stress responses in plants. Conversely, the mechanisms of ABA in mulberry root growth, seed germination, and abiotic stress responses are poorly understood. Here, we reported that exogenous ABA and drought treatment inhibited the growth of mulberry seedlings but significantly increased the ratio of root/stem. Inhibition of ABA synthesis by fluridone and sodium tungstate resulted in the decrease of root/stem ratio. We also showed that the expression of MaNCED1 in the root was strongly induced by drought and salt stress. Increasing the expression of MaNCED1 in tobacco using overexpression leads to increased root elongation and reduced seed germination. Compared with the wild type, the accumulation of H2O2 and MDA was reduced, while the POD activity and proline content was increased in the transgenic plants after drought and salt treatment. Further studies revealed increased resistance to drought and salt stress in MaNCED1 overexpressed tobaccos. Meanwhile, the auxin and ethylene signal pathway-related gene expression levels increased in MaNCED1 overexpressed tobaccos. This study demonstrated the roles of mulberry MaNCED1 in regulating plant development and abiotic stress responses. It gave further insights into the coordinated regulation of ABA, auxin, and ethylene in seed growth and germination.
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Affiliation(s)
- Panpan Zhu
- State Key Laboratory of Resource Insects, Institute of Sericulture and Systems Biology, Southwest University, Chongqing, China
- Resource Institute for Chinese & Ethnic Materia Medica, Guizhou University of Traditional Chinese Medicine, Guiyang, China
| | - Ruolan Li
- State Key Laboratory of Resource Insects, Institute of Sericulture and Systems Biology, Southwest University, Chongqing, China
| | - Wei Fan
- State Key Laboratory of Resource Insects, Institute of Sericulture and Systems Biology, Southwest University, Chongqing, China
| | - Zhongqiang Xia
- State Key Laboratory of Resource Insects, Institute of Sericulture and Systems Biology, Southwest University, Chongqing, China
| | - Jun Li
- Resource Institute for Chinese & Ethnic Materia Medica, Guizhou University of Traditional Chinese Medicine, Guiyang, China
| | - Chuanhong Wang
- The National Engineering Laboratory of Crop Resistance Breeding, School of Life Sciences, Anhui Agricultural University, Hefei, China
| | - Aichun Zhao
- State Key Laboratory of Resource Insects, Institute of Sericulture and Systems Biology, Southwest University, Chongqing, China
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El Mamoun I, Bouzroud S, Zouine M, Smouni A. The Knockdown of AUXIN RESPONSE FACTOR 2 Confers Enhanced Tolerance to Salt and Drought Stresses in Tomato ( Solanum lycopersicum L.). PLANTS (BASEL, SWITZERLAND) 2023; 12:2804. [PMID: 37570958 PMCID: PMC10420960 DOI: 10.3390/plants12152804] [Citation(s) in RCA: 0] [Impact Index Per Article: 0] [Reference Citation Analysis] [Abstract] [Key Words] [Grants] [Track Full Text] [Subscribe] [Scholar Register] [Received: 06/26/2023] [Revised: 07/19/2023] [Accepted: 07/25/2023] [Indexed: 08/13/2023]
Abstract
Auxin response factors (ARFs) act as key elements of the auxin-signaling pathway and play important roles in the process of a plant's growth, development, and response to environmental conditions. We studied the implication of the SlARF2 gene in the tomato response to salt (150 mM of NaCl) and drought (15% PEG 20000) stresses. The functional characterization of SlARF2 knockdown tomato mutants revealed that the downregulation of this gene enhanced primary root length and root branching and reduced plant wilting. At the physiological level, the arf2 mutant line displayed higher chlorophyll, soluble sugars, proline, and relative water contents as well as lower stomatal conductance and a decreased malondialdehyde content. Moreover, SlARF2 knockdown tomato mutants demonstrated higher activities of the antioxidant enzymes superoxide dismutase (SOD) and catalase (CAT) under salt and drought stresses than the wild type. Indeed, the stress tolerance of the arf2 mutant was also reflected by the upregulation of stress-related genes involved in ROS scavenging and plant defense, including SOD, CAT, dehydration-responsive element-binding protein, and early responsive to dehydration, which can ultimately result in a better resistance to salt and drought stresses. Furthermore, the transcriptional levels of the Δ1-pyrroline-5-carboxylate synthase (P5CS) gene were upregulated in the arf2 mutant after stress, in correlation with the higher levels of proline. Taken together, our findings reveal that SlARF2 is implicated in salt and drought tolerance in tomato and provides some considerable elements for improving the abiotic stress tolerance and increasing the crop yields of tomato.
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Affiliation(s)
- Ibtihaj El Mamoun
- Laboratoire de Biotechnologie et de Physiologie Végétales, Center of Plant and Microbial Biotechnology, Biodiversity and Environment, Faculty of Sciences, Mohammed V University in Rabat, Rabat 10000, Morocco;
- Laboratoire de Recherche en Sciences Végétales, UMR5546, Université de Toulouse, Centre National de la Recherche Scientifique (CNRS), Université Toulouse Paul Sabatier (UPS), Toulouse-INP, 31320 Auzeville-Tolosane, France
| | - Sarah Bouzroud
- Microbiology and Molecular Biology Team, Center of Plant and Microbial Biotechnology, Biodiversity and Environment, Faculty of Sciences, Mohammed V University in Rabat, Rabat 10000, Morocco;
| | - Mohamed Zouine
- Laboratoire de Recherche en Sciences Végétales, UMR5546, Université de Toulouse, Centre National de la Recherche Scientifique (CNRS), Université Toulouse Paul Sabatier (UPS), Toulouse-INP, 31320 Auzeville-Tolosane, France
| | - Abdelaziz Smouni
- Laboratoire de Biotechnologie et de Physiologie Végétales, Center of Plant and Microbial Biotechnology, Biodiversity and Environment, Faculty of Sciences, Mohammed V University in Rabat, Rabat 10000, Morocco;
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Chaudhari HA, Mahatma MK, Antala V, Radadiya N, Ukani P, Tomar RS, Thawait LK, Singh S, Gangadhara K, Sakure A, Parihar A. Ethrel-induced release of fresh seed dormancy causes remodelling of amylase activity, proteomics, phytohormone and fatty acid profile of groundnut (Arachis hypogaea L.). PHYSIOLOGY AND MOLECULAR BIOLOGY OF PLANTS : AN INTERNATIONAL JOURNAL OF FUNCTIONAL PLANT BIOLOGY 2023; 29:829-842. [PMID: 37520814 PMCID: PMC10382464 DOI: 10.1007/s12298-023-01332-6] [Citation(s) in RCA: 1] [Impact Index Per Article: 1.0] [Reference Citation Analysis] [Abstract] [Key Words] [Track Full Text] [Subscribe] [Scholar Register] [Received: 01/18/2023] [Revised: 06/20/2023] [Accepted: 07/05/2023] [Indexed: 08/01/2023]
Abstract
It is important to have a short period of fresh seed dormancy in some of the groundnut species to counter pre-harvest sprouting (PHS). One of the main causes of PHS is the activation of ethylene-mediated pathways. To determine the effect of ethylene, the study was conducted and alterations in amylase, proteins and fatty acids were observed at the 0, 6, 12, and 24 h stages after ethrel administration. The result showed an increase in amylase activity, and the fatty acids profile showed a unique alteration pattern at different germination stages. Two-dimensional gel electrophoresis (2DGE) revealed differential expression of proteins at each stage. The trypsin digestion following spectral development through UPLC-MS/MS enabled identification of number of differentially expressed proteins. A total of 49 proteins were identified from 2DGE excised spots. The majority were belonged to seed storage-related proteins like Arah1, Arah2, AAI- domain containing protein, conglutin, Arah3/4, arachin, glycinin. Expression of lipoxygenase1, lipoxygenase9 and Arah2 genes were further confirmed by qRT-PCR which showed its involvement at transcript level. Up-regulation of lipoxygenase9 is correlated with decreased content of fatty acids during germination. Phytohormone detection revealed decrease in ABA, SA and JA content which are generally inhibitor of seed germination while GA, IAA and kinetin concentration increased revealing positive regulation of seed germination. We present an integrated view of proteomics, phytohormone profile, carbohydrate and lipid metabolism to unravel mechanism of fresh seed dormancy. Supplementary Information The online version contains supplementary material available at 10.1007/s12298-023-01332-6.
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Affiliation(s)
- Hemangini A. Chaudhari
- Department of Biotechnology, College of Agriculture, Junagadh Agricultural University, Junagadh, Gujarat 362001 India
- ICAR-Directorate of Groundnut Research, Junagadh, Gujarat 362001 India
| | - Mahesh Kumar Mahatma
- ICAR-Directorate of Groundnut Research, Junagadh, Gujarat 362001 India
- ICAR-National Research Centre on Seed Spices, Tabiji, Ajmer, 305206 India
| | - Virali Antala
- Department of Biotechnology, College of Agriculture, Junagadh Agricultural University, Junagadh, Gujarat 362001 India
| | - Nidhi Radadiya
- Department of Biotechnology, College of Agriculture, Junagadh Agricultural University, Junagadh, Gujarat 362001 India
| | - Piyush Ukani
- Department of Biotechnology, College of Agriculture, Junagadh Agricultural University, Junagadh, Gujarat 362001 India
| | - Rukam Singh Tomar
- Department of Biotechnology, College of Agriculture, Junagadh Agricultural University, Junagadh, Gujarat 362001 India
| | | | - Sushmita Singh
- ICAR-Directorate of Groundnut Research, Junagadh, Gujarat 362001 India
| | - K. Gangadhara
- ICAR-Directorate of Groundnut Research, Junagadh, Gujarat 362001 India
- ICAR-Central Tobacco Research Institute, Regional Station, Kandukur, Andhra Pradesh 533105 India
| | - Amar Sakure
- Department of Agricultural Biotechnology, Anand Agricultural University, Anand, Gujarat 38811 India
| | - Akrash Parihar
- Department of Agricultural Biotechnology, Anand Agricultural University, Anand, Gujarat 38811 India
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Xu X, Huang B, Fang X, Zhang Q, Qi T, Gong M, Zheng X, Wu M, Jian Y, Deng J, Cheng Y, Li Z, Deng W. SlMYB99-mediated auxin and abscisic acid antagonistically regulate ascorbic acids biosynthesis in tomato. THE NEW PHYTOLOGIST 2023. [PMID: 37247338 DOI: 10.1111/nph.18988] [Citation(s) in RCA: 1] [Impact Index Per Article: 1.0] [Reference Citation Analysis] [Abstract] [Key Words] [Grants] [Track Full Text] [Subscribe] [Scholar Register] [Received: 01/30/2023] [Accepted: 04/28/2023] [Indexed: 05/31/2023]
Abstract
Ascorbic acid (AsA) is a water-soluble antioxidant that plays important roles in plant development and human health. Understanding the regulatory mechanism underlying AsA biosynthesis is imperative to the development of high AsA plants. In this study, we reveal that the auxin response factor SlARF4 transcriptionally inhibits SlMYB99, which subsequently modulates AsA accumulation via transcriptional activation of AsA biosynthesis genes GPP, GLDH, and DHAR. The auxin-dependent transcriptional cascade of SlARF4-SlMYB99-GPP/GLDH/DHAR modulates AsA synthesis, while mitogen-activated protein kinase SlMAPK8 not only phosphorylates SlMYB99, but also activates its transcriptional activity. Both SlMYB99 and SlMYB11 proteins physically interact with each other, thereby synergistically regulating AsA biosynthesis by upregulating the expression of GPP, GLDH, and DHAR genes. Collectively, these results demonstrate that auxin and abscisic acid antagonistically regulate AsA biosynthesis during development and drought tolerance in tomato via the SlMAPK8-SlARF4-SlMYB99/11 module. These findings provide new insights into the mechanism underlying phytohormone regulation of AsA biosynthesis and provide a theoretical basis for the future development of high AsA plants via molecular breeding.
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Affiliation(s)
- Xin Xu
- Key Laboratory of Plant Hormones and Development Regulation of Chongqing, School of Life Sciences, Chongqing University, Chongqing, 400044, China
| | - Baowen Huang
- Key Laboratory of Plant Hormones and Development Regulation of Chongqing, School of Life Sciences, Chongqing University, Chongqing, 400044, China
| | - Xu Fang
- Key Laboratory of Plant Hormones and Development Regulation of Chongqing, School of Life Sciences, Chongqing University, Chongqing, 400044, China
| | - Qiongdan Zhang
- Key Laboratory of Plant Hormones and Development Regulation of Chongqing, School of Life Sciences, Chongqing University, Chongqing, 400044, China
| | - Tiancheng Qi
- Key Laboratory of Plant Hormones and Development Regulation of Chongqing, School of Life Sciences, Chongqing University, Chongqing, 400044, China
| | - Min Gong
- Key Laboratory of Plant Hormones and Development Regulation of Chongqing, School of Life Sciences, Chongqing University, Chongqing, 400044, China
| | - Xianzhe Zheng
- Key Laboratory of Plant Hormones and Development Regulation of Chongqing, School of Life Sciences, Chongqing University, Chongqing, 400044, China
| | - Mengbo Wu
- Key Laboratory of Plant Hormones and Development Regulation of Chongqing, School of Life Sciences, Chongqing University, Chongqing, 400044, China
| | - Yongfei Jian
- Key Laboratory of Plant Hormones and Development Regulation of Chongqing, School of Life Sciences, Chongqing University, Chongqing, 400044, China
| | - Jie Deng
- Key Laboratory of Plant Hormones and Development Regulation of Chongqing, School of Life Sciences, Chongqing University, Chongqing, 400044, China
| | - Yulin Cheng
- Key Laboratory of Plant Hormones and Development Regulation of Chongqing, School of Life Sciences, Chongqing University, Chongqing, 400044, China
| | - Zhengguo Li
- Key Laboratory of Plant Hormones and Development Regulation of Chongqing, School of Life Sciences, Chongqing University, Chongqing, 400044, China
| | - Wei Deng
- Key Laboratory of Plant Hormones and Development Regulation of Chongqing, School of Life Sciences, Chongqing University, Chongqing, 400044, China
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Wei J, Xu L, Shi Y, Cheng T, Tan W, Zhao Y, Li C, Yang X, Ouyang L, Wei M, Wang J, Lu G. Transcriptome profile analysis of Indian mustard (Brassica juncea L.) during seed germination reveals the drought stress-induced genes associated with energy, hormone, and phenylpropanoid pathways. PLANT PHYSIOLOGY AND BIOCHEMISTRY : PPB 2023; 200:107750. [PMID: 37210860 DOI: 10.1016/j.plaphy.2023.107750] [Citation(s) in RCA: 7] [Impact Index Per Article: 7.0] [Reference Citation Analysis] [Abstract] [Key Words] [Track Full Text] [Subscribe] [Scholar Register] [Received: 01/15/2023] [Revised: 04/14/2023] [Accepted: 05/08/2023] [Indexed: 05/23/2023]
Abstract
Indian mustard (Brassica juncea L. Czern and Coss) is an important oil and vegetable crop frequently affected by seasonal drought stress during seed germination, which retards plant growth and causes yield loss considerably. However, the gene networks regulating responses to drought stress in leafy Indian mustard remain elusive. Here, we elucidated the underlying gene networks and pathways of drought response in leafy Indian mustard using next-generation transcriptomic techniques. Phenotypic analysis showed that the drought-tolerant leafy Indian mustard cv. 'WeiLiang' (WL) had a higher germination rate, antioxidant capacity, and better growth performance than the drought-sensitive cv. 'ShuiDong' (SD). Transcriptome analysis identified differentially expressed genes (DEGs) in both cultivars under drought stress during four germination time points (i.e., 0, 12, 24, and 36 h); most of which were classified as drought-responsive, seed germination, and dormancy-related genes. In the Kyoto Encyclopedia of Genes and Genome (KEGG) analyses, three main pathways (i.e., starch and sucrose metabolism, phenylpropanoid biosynthesis, and plant hormone signal transduction) were unveiled involved in response to drought stress during seed germination. Furthermore, Weighted Gene Co-expression Network Analysis (WGCNA) identified several hub genes (novel.12726, novel.1856, BjuB027900, BjuA003402, BjuA021578, BjuA005565, BjuB006596, novel.12977, and BjuA033308) associated with seed germination and drought stress in leafy Indian mustard. Taken together, these findings deepen our understanding of the gene networks for drought responses during seed germination in leafy Indian mustard and provide potential target genes for the genetic improvement of drought tolerance in this crop.
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Affiliation(s)
- Jinxing Wei
- College of Biology and Food Engineering, Guangdong University of Petrochemical Technology, Maoming, 525000, China; Integrative Microbiology Research Centre, College of Plant Protection, South China Agricultural University, Guangzhou, 510642, China
| | - Linghui Xu
- Integrative Microbiology Research Centre, College of Plant Protection, South China Agricultural University, Guangzhou, 510642, China; Guangdong Province Key Laboratory of Microbial Signals and Disease Control, South China Agricultural University, Guangzhou, 510642, China
| | - Yu Shi
- Integrative Microbiology Research Centre, College of Plant Protection, South China Agricultural University, Guangzhou, 510642, China
| | - Tianfang Cheng
- Integrative Microbiology Research Centre, College of Plant Protection, South China Agricultural University, Guangzhou, 510642, China
| | - Wenlan Tan
- Integrative Microbiology Research Centre, College of Plant Protection, South China Agricultural University, Guangzhou, 510642, China
| | - Yongguo Zhao
- College of Biology and Food Engineering, Guangdong University of Petrochemical Technology, Maoming, 525000, China
| | - Chunsheng Li
- Hubei Engineering University, Xiaogan, 432000, China
| | - Xinyu Yang
- College of Biology and Food Engineering, Guangdong University of Petrochemical Technology, Maoming, 525000, China
| | - Lejun Ouyang
- College of Biology and Food Engineering, Guangdong University of Petrochemical Technology, Maoming, 525000, China
| | - Mingken Wei
- College of Biology and Food Engineering, Guangdong University of Petrochemical Technology, Maoming, 525000, China
| | - Junxia Wang
- Integrative Microbiology Research Centre, College of Plant Protection, South China Agricultural University, Guangzhou, 510642, China; Guangdong Province Key Laboratory of Microbial Signals and Disease Control, South China Agricultural University, Guangzhou, 510642, China.
| | - Guangyuan Lu
- College of Biology and Food Engineering, Guangdong University of Petrochemical Technology, Maoming, 525000, China.
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Zhang H, Chen G, Xu H, Jing S, Jiang Y, Liu Z, Zhang H, Wang F, Hu X, Zhu Y. Transcriptome Analysis of Rice Embryo and Endosperm during Seed Germination. Int J Mol Sci 2023; 24:ijms24108710. [PMID: 37240056 DOI: 10.3390/ijms24108710] [Citation(s) in RCA: 0] [Impact Index Per Article: 0] [Reference Citation Analysis] [Abstract] [Key Words] [Grants] [Track Full Text] [Journal Information] [Subscribe] [Scholar Register] [Received: 03/16/2023] [Revised: 04/28/2023] [Accepted: 05/05/2023] [Indexed: 05/28/2023] Open
Abstract
Seed germination is a complex, multistage developmental process that is an important step in plant development. In this study, RNA-Seq was conducted in the embryo and endosperm of unshelled germinating rice seeds. A total of 14,391 differentially expressed genes (DEGs) were identified between the dry seeds and the germinating seeds. Of these DEGs, 7109 were identified in both the embryo and endosperm, 3953 were embryo specific, and 3329 were endosperm specific. The embryo-specific DEGs were enriched in the plant-hormone signal-transduction pathway, while the endosperm-specific DEGs were enriched in phenylalanine, tyrosine, and tryptophan biosynthesis. We categorized these DEGs into early-, intermediate-, and late-stage genes, as well as consistently responsive genes, which can be enriched in various pathways related to seed germination. Transcription-factor (TF) analysis showed that 643 TFs from 48 families were differentially expressed during seed germination. Moreover, 12 unfolded protein response (UPR) pathway genes were induced by seed germination, and the knockout of OsBiP2 resulted in reduced germination rates compared to the wild type. This study enhances our understanding of gene responses in the embryo and endosperm during seed germination and provides insight into the effects of UPR on seed germination in rice.
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Affiliation(s)
- Heng Zhang
- State Key Laboratory for Managing Biotic and Chemical Threats to the Quality and Safety of Agro-Products, Key Laboratory of Traceability for Agricultural Genetically Modified Organisms, Ministry of Agriculture and Rural Affairs, Institute of Virology and Biotechnology, Zhejiang Academy of Agricultural Sciences, Hangzhou 310021, China
| | - Guang Chen
- State Key Laboratory for Managing Biotic and Chemical Threats to the Quality and Safety of Agro-Products, Key Laboratory of Traceability for Agricultural Genetically Modified Organisms, Ministry of Agriculture and Rural Affairs, Institute of Virology and Biotechnology, Zhejiang Academy of Agricultural Sciences, Hangzhou 310021, China
| | - Heng Xu
- State Key Laboratory for Managing Biotic and Chemical Threats to the Quality and Safety of Agro-Products, Key Laboratory of Traceability for Agricultural Genetically Modified Organisms, Ministry of Agriculture and Rural Affairs, Institute of Virology and Biotechnology, Zhejiang Academy of Agricultural Sciences, Hangzhou 310021, China
| | - Sasa Jing
- State Key Laboratory for Managing Biotic and Chemical Threats to the Quality and Safety of Agro-Products, Key Laboratory of Traceability for Agricultural Genetically Modified Organisms, Ministry of Agriculture and Rural Affairs, Institute of Virology and Biotechnology, Zhejiang Academy of Agricultural Sciences, Hangzhou 310021, China
- Shanghai Key Laboratory of Bio-Energy Crops, Research Center for Natural Products, Plant Science Center, School of Life Sciences, Shanghai University, Shanghai 200444, China
| | - Yingying Jiang
- State Key Laboratory for Managing Biotic and Chemical Threats to the Quality and Safety of Agro-Products, Key Laboratory of Traceability for Agricultural Genetically Modified Organisms, Ministry of Agriculture and Rural Affairs, Institute of Virology and Biotechnology, Zhejiang Academy of Agricultural Sciences, Hangzhou 310021, China
| | - Ziwen Liu
- State Key Laboratory for Managing Biotic and Chemical Threats to the Quality and Safety of Agro-Products, Key Laboratory of Traceability for Agricultural Genetically Modified Organisms, Ministry of Agriculture and Rural Affairs, Institute of Virology and Biotechnology, Zhejiang Academy of Agricultural Sciences, Hangzhou 310021, China
| | - Hua Zhang
- State Key Laboratory for Managing Biotic and Chemical Threats to the Quality and Safety of Agro-Products, Key Laboratory of Traceability for Agricultural Genetically Modified Organisms, Ministry of Agriculture and Rural Affairs, Institute of Virology and Biotechnology, Zhejiang Academy of Agricultural Sciences, Hangzhou 310021, China
| | - Fulin Wang
- State Key Laboratory for Managing Biotic and Chemical Threats to the Quality and Safety of Agro-Products, Key Laboratory of Traceability for Agricultural Genetically Modified Organisms, Ministry of Agriculture and Rural Affairs, Institute of Virology and Biotechnology, Zhejiang Academy of Agricultural Sciences, Hangzhou 310021, China
| | - Xiangyang Hu
- Shanghai Key Laboratory of Bio-Energy Crops, Research Center for Natural Products, Plant Science Center, School of Life Sciences, Shanghai University, Shanghai 200444, China
| | - Ying Zhu
- State Key Laboratory for Managing Biotic and Chemical Threats to the Quality and Safety of Agro-Products, Key Laboratory of Traceability for Agricultural Genetically Modified Organisms, Ministry of Agriculture and Rural Affairs, Institute of Virology and Biotechnology, Zhejiang Academy of Agricultural Sciences, Hangzhou 310021, China
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48
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Zheng G, Li W, Zhang S, Mi Q, Luo W, Zhao Y, Qin X, Li W, Pu S, Xu F. Multiomics strategies for decoding seed dormancy breakdown in Paris polyphylla. BMC PLANT BIOLOGY 2023; 23:247. [PMID: 37170087 PMCID: PMC10173654 DOI: 10.1186/s12870-023-04262-3] [Citation(s) in RCA: 0] [Impact Index Per Article: 0] [Reference Citation Analysis] [Abstract] [Key Words] [Grants] [Track Full Text] [Subscribe] [Scholar Register] [Received: 02/10/2023] [Accepted: 05/03/2023] [Indexed: 05/13/2023]
Abstract
BACKGROUND The disruption of seed dormancy is a complicated process and is controlled by various factors. Among these factors, membrane lipids and plant hormones are two of the most important ones. Paris polyphylla is an important Chinese herbaceous species, and the dormancy trait of its seed limits the cultivation of this herb. RESULTS In this study, we investigate the global metabolic and transcriptomic profiles of Paris polyphylla during seed dormancy breaking. Widely targeted metabolomics revealed that lysophospholipids (lysoPLs) increased during P. polyphylla seed dormancy breaking. The expression of phospholipase A2 (PLA2), genes correlated to the production of lysoPLs, up-regulated significantly during this process. Abscisic acid (ABA) decreased dramatically during seed dormancy breaking of P. polyphylla. Changes of different GAs varied during P. polyphylla seeds dormancy breaking, 13-OH GAs, such as GA53 were not detected, and GA3 decreased significantly, whereas 13-H GAs, such as GA15, GA24 and GA4 increased. The expression of CYP707As was not synchronous with the change of ABA content, and the expression of most UGTs, GA20ox and GA3ox up-regulated during seed dormancy breaking. CONCLUSIONS These results suggest that PLA2 mediated production of lysoPLs may correlate to the seed dormancy breaking of P. polyphylla. The conversion of ABA to ABA-GE catalysed by UGTs may be the main cause of ABA degradation. Through inhibition the expression of genes related to the synthesis of 13-OH GAs and up-regulation genes related to the synthesis of 13-H GAs, P. polyphylla synthesized more bioactive 13-H GA (GA4) to break its seed dormancy.
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Affiliation(s)
- Guowei Zheng
- College of Chinese Materia Medica, Yunnan University of Chinese Medicine, Kunming, 650500, China
| | - Wenchun Li
- College of Chinese Materia Medica, Yunnan University of Chinese Medicine, Kunming, 650500, China
| | - Shunzhen Zhang
- College of Chinese Materia Medica, Yunnan University of Chinese Medicine, Kunming, 650500, China
| | - Qi Mi
- College of Chinese Materia Medica, Yunnan University of Chinese Medicine, Kunming, 650500, China
| | - Wenxiu Luo
- College of Chinese Materia Medica, Yunnan University of Chinese Medicine, Kunming, 650500, China
| | - Yanli Zhao
- College of Chinese Materia Medica, Yunnan University of Chinese Medicine, Kunming, 650500, China
| | - Xiangshi Qin
- Germplasm Bank of Wild Species, Kunming Institute of Botany, Chinese Academy of Sciences, Kunming, 650201, China
| | - Weijiao Li
- College of Chinese Materia Medica, Yunnan University of Chinese Medicine, Kunming, 650500, China.
| | - Shibiao Pu
- College of Chinese Materia Medica, Yunnan University of Chinese Medicine, Kunming, 650500, China.
| | - Furong Xu
- College of Ethnic Medicines, Yunnan University of Chinese Medicine, Kunming, 650500, China.
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49
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Świeżawska-Boniecka B, Szmidt-Jaworska A. Phytohormones and cyclic nucleotides - Long-awaited couples? JOURNAL OF PLANT PHYSIOLOGY 2023; 286:154005. [PMID: 37186984 DOI: 10.1016/j.jplph.2023.154005] [Citation(s) in RCA: 0] [Impact Index Per Article: 0] [Reference Citation Analysis] [Track Full Text] [Subscribe] [Scholar Register] [Received: 03/30/2023] [Accepted: 05/09/2023] [Indexed: 05/17/2023]
Affiliation(s)
- Brygida Świeżawska-Boniecka
- Nicolaus Copernicus University, Faculty of Biological and Veterinary Sciences, Department of Plant Physiology and Biotechnology, Lwowska St. 1, PL 87-100, Torun, Poland.
| | - Adriana Szmidt-Jaworska
- Nicolaus Copernicus University, Faculty of Biological and Veterinary Sciences, Department of Plant Physiology and Biotechnology, Lwowska St. 1, PL 87-100, Torun, Poland.
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50
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Liao J, Deng B, Yang Q, Li Y, Zhang Y, Cong J, Wang X, Kohnen MV, Liu ZJ, Lu MZ, Lin D, Gu L, Liu B. Insights into cryptochrome modulation of ABA signaling to mediate dormancy regulation in Marchantia polymorpha. THE NEW PHYTOLOGIST 2023; 238:1479-1497. [PMID: 36797656 DOI: 10.1111/nph.18815] [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: 12/18/2022] [Accepted: 02/07/2023] [Indexed: 06/18/2023]
Abstract
The acquisition of dormancy capabilities has enabled plants to survive in adverse terrestrial environmental conditions. Dormancy accumulation and release is coupled with light signaling, which is well studied in Arabidopsis, but it is unclear in the distant nonvascular relative. We study the characteristics and function on dormancy regulation of a blue light receptor cryptochrome in Marchantia polymorpha (MpCRY). Here, we identified MpCRY via bioinformatics and mutant complement analysis. The biochemical characteristics were assessed by multiple protein-binding assays. The function of MpCRY in gemma dormancy was clarified by overexpression and mutation of MpCRY, and its mechanism was analyzed via RNA sequencing and quantitative PCR analyses associated with hormone treatment. We found that the unique MpCRY protein in M. polymorpha undergoes both blue light-promoted interaction with itself (self-interaction) and blue light-dependent phosphorylation. MpCRY has the specific characteristics of blue light-induced nuclear localization and degradation. We further demonstrated that MpCRY transcriptionally represses abscisic acid (ABA) signaling-related gene expression to suppress gemma dormancy, which is dependent on blue light signaling. Our findings indicate that MpCRY possesses specific biochemical and molecular characteristics, and modulates ABA signaling under blue light conditions to regulate gemma dormancy in M. polymorpha.
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Affiliation(s)
- Jiakai Liao
- Basic Forestry and Proteomics Research Center, College of Life Science, Fujian Agriculture and Forestry University, Fuzhou, 350002, Fujian, China
- Jiangsu Key Laboratory for Bioresources of Saline Soils, Jiangsu Synthetic Innovation Center for Coastal Bio-agriculture, School of Wetlands, Yancheng Teachers University, Yancheng, 224007, China
- Basic Forestry and Proteomics Research Center, College of Forestry, Fujian Agriculture and Forestry University, Fuzhou, 350002, Fujian, China
| | - Ban Deng
- Center for Genomics and Biotechnology, Fujian Agriculture and Forestry University, Fuzhou, 350002, Fujian, China
| | - Qixin Yang
- Jiangsu Key Laboratory for Bioresources of Saline Soils, Jiangsu Synthetic Innovation Center for Coastal Bio-agriculture, School of Wetlands, Yancheng Teachers University, Yancheng, 224007, China
- Basic Forestry and Proteomics Research Center, College of Forestry, Fujian Agriculture and Forestry University, Fuzhou, 350002, Fujian, China
- Fujian Colleges and Universities Engineering Research Institute of Conservation and Utilization of Natural Bioresources, College of Forestry, Fujian Agriculture and Forestry University, Fuzhou, 350002, Fujian, China
| | - Yu Li
- Key Laboratory of Plant Molecular Physiology, Institute of Botany, Chinese Academy of Sciences, Beijing, 100093, China
| | - Yuxiang Zhang
- Basic Forestry and Proteomics Research Center, College of Life Science, Fujian Agriculture and Forestry University, Fuzhou, 350002, Fujian, China
| | - Jiajing Cong
- Basic Forestry and Proteomics Research Center, College of Life Science, Fujian Agriculture and Forestry University, Fuzhou, 350002, Fujian, China
| | - Xiaqin Wang
- Basic Forestry and Proteomics Research Center, College of Forestry, Fujian Agriculture and Forestry University, Fuzhou, 350002, Fujian, China
- Fujian Colleges and Universities Engineering Research Institute of Conservation and Utilization of Natural Bioresources, College of Forestry, Fujian Agriculture and Forestry University, Fuzhou, 350002, Fujian, China
- State Key Laboratory of Subtropical Silviculture, School of Forestry and Biotechnology, Zhejiang A&F University, Hangzhou, Zhejiang, 311300, China
| | - Markus V Kohnen
- Basic Forestry and Proteomics Research Center, College of Life Science, Fujian Agriculture and Forestry University, Fuzhou, 350002, Fujian, China
- Basic Forestry and Proteomics Research Center, College of Forestry, Fujian Agriculture and Forestry University, Fuzhou, 350002, Fujian, China
| | - Zhong-Jian Liu
- Fujian Colleges and Universities Engineering Research Institute of Conservation and Utilization of Natural Bioresources, College of Forestry, Fujian Agriculture and Forestry University, Fuzhou, 350002, Fujian, China
- Key Laboratory of National Forestry and Grassland Administration for Orchid Conservation and Utilization at College of Landscape Architecture, Fujian Agriculture and Forestry University, Fuzhou, 350002, Fujian, China
| | - Meng-Zhu Lu
- State Key Laboratory of Subtropical Silviculture, School of Forestry and Biotechnology, Zhejiang A&F University, Hangzhou, Zhejiang, 311300, China
| | - Deshu Lin
- Basic Forestry and Proteomics Research Center, College of Life Science, Fujian Agriculture and Forestry University, Fuzhou, 350002, Fujian, China
| | - Lianfeng Gu
- Basic Forestry and Proteomics Research Center, College of Forestry, Fujian Agriculture and Forestry University, Fuzhou, 350002, Fujian, China
| | - Bobin Liu
- Jiangsu Key Laboratory for Bioresources of Saline Soils, Jiangsu Synthetic Innovation Center for Coastal Bio-agriculture, School of Wetlands, Yancheng Teachers University, Yancheng, 224007, China
- Basic Forestry and Proteomics Research Center, College of Forestry, Fujian Agriculture and Forestry University, Fuzhou, 350002, Fujian, China
- Fujian Colleges and Universities Engineering Research Institute of Conservation and Utilization of Natural Bioresources, College of Forestry, Fujian Agriculture and Forestry University, Fuzhou, 350002, Fujian, China
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