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Chang J, Li J, Li J, Chen X, Jiao J, Li J, Song Z, Zhang B. The GA and ABA signaling is required for hydrogen-mediated seed germination in wax gourd. BMC PLANT BIOLOGY 2024; 24:542. [PMID: 38872107 DOI: 10.1186/s12870-024-05193-3] [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: 04/23/2023] [Accepted: 05/23/2024] [Indexed: 06/15/2024]
Abstract
BACKGROUND Hydrogen gas (H2), a novel and beneficial gaseous molecule, plays a significant role in plant growth and development processes. Hydrogen-rich water (HRW) is regarded as a safe and easily available way to study the physiological effects of H2 on plants. Several recent research has shown that HRW attenuates stress-induced seed germination inhibition; however, the underlying modes of HRW on seed germination remain obscure under non-stress condition. RESULTS In this current study, we investigated the possible roles of gibberellin (GA) and abscisic acid (ABA) in HRW-regulated seed germination in wax gourd (Benincasa hispida) through pharmacological, physiological, and transcriptome approaches. The results showed that HRW application at an optimal dose (50% HRW) significantly promoted seed germination and shortened the average germination time (AGT). Subsequent results suggested that 50% HRW treatment stimulated GA production by regulating GA biosynthesis genes (BhiGA3ox, BhiGA2ox, and BhiKAO), whereas it had no effect on the content of ABA and the expression of its biosynthesis (BhiNCED6) and catabolism genes (BhiCYP707A2) but decreased the expression of ABA receptor gene (BhiPYL). In addition, inhibition of GA production by paclobutrazol (PAC) could block the HRW-mediated germination. Treatment with ABA could hinder HRW-mediated seed germination and the ABA biosynthesis inhibitor sodium tungstate (ST) could recover the function of HRW. Furthermore, RNA-seq analysis revealed that, in the presence of GA or ABA, an abundance of genes involved in GA, ABA, and ethylene signal sensing and transduction might involve in HRW-regulated germination. CONCLUSIONS This study portrays insights into the mechanism of HRW-mediated seed germination, suggesting that HRW can regulate the balance between GA and ABA to mediate seed germination through ethylene signals in wax gourd.
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Affiliation(s)
- Jingjing Chang
- Key Laboratory for New Technology Research of Vegetable, Vegetable Research Institute, Guangdong Academy of Agricultural Sciences, Guangzhou, 510640, China
| | - Jiawei Li
- Key Laboratory for New Technology Research of Vegetable, Vegetable Research Institute, Guangdong Academy of Agricultural Sciences, Guangzhou, 510640, China
| | - Jinlong Li
- Key Laboratory for New Technology Research of Vegetable, Vegetable Research Institute, Guangdong Academy of Agricultural Sciences, Guangzhou, 510640, China
| | - Xiao Chen
- Key Laboratory for New Technology Research of Vegetable, Vegetable Research Institute, Guangdong Academy of Agricultural Sciences, Guangzhou, 510640, China
| | - Jiabin Jiao
- Key Laboratory for New Technology Research of Vegetable, Vegetable Research Institute, Guangdong Academy of Agricultural Sciences, Guangzhou, 510640, China
| | - Jing Li
- Key Laboratory for New Technology Research of Vegetable, Vegetable Research Institute, Guangdong Academy of Agricultural Sciences, Guangzhou, 510640, China
| | - Zhao Song
- Key Laboratory for New Technology Research of Vegetable, Vegetable Research Institute, Guangdong Academy of Agricultural Sciences, Guangzhou, 510640, China
| | - Baige Zhang
- Key Laboratory for New Technology Research of Vegetable, Vegetable Research Institute, Guangdong Academy of Agricultural Sciences, Guangzhou, 510640, China.
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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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Wang J, Wu H, Wang Y, Ye W, Kong X, Yin Z. Small particles, big effects: How nanoparticles can enhance plant growth in favorable and harsh conditions. JOURNAL OF INTEGRATIVE PLANT BIOLOGY 2024. [PMID: 38578151 DOI: 10.1111/jipb.13652] [Citation(s) in RCA: 0] [Impact Index Per Article: 0] [Reference Citation Analysis] [Abstract] [Key Words] [Grants] [Track Full Text] [Subscribe] [Scholar Register] [Received: 01/27/2024] [Accepted: 03/07/2024] [Indexed: 04/06/2024]
Abstract
By 2050, the global population is projected to reach 9 billion, underscoring the imperative for innovative solutions to increase grain yield and enhance food security. Nanotechnology has emerged as a powerful tool, providing unique solutions to this challenge. Nanoparticles (NPs) can improve plant growth and nutrition under normal conditions through their high surface-to-volume ratio and unique physical and chemical properties. Moreover, they can be used to monitor crop health status and augment plant resilience against abiotic stresses (such as salinity, drought, heavy metals, and extreme temperatures) that endanger global agriculture. Application of NPs can enhance stress tolerance mechanisms in plants, minimizing potential yield losses and underscoring the potential of NPs to raise crop yield and quality. This review highlights the need for a comprehensive exploration of the environmental implications and safety of nanomaterials and provides valuable guidelines for researchers, policymakers, and agricultural practitioners. With thoughtful stewardship, nanotechnology holds immense promise in shaping environmentally sustainable agriculture amid escalating environmental challenges.
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Affiliation(s)
- Jie Wang
- Zhengzhou Research Base, National Key Laboratory of Cotton Bio-breeding and Integrated Utilization, School of Agricultural Sciences, Zhengzhou University, Zhengzhou, 450001, China
- National Key Laboratory of Cotton Bio-breeding and Integrated Utilization, Institute of Cotton Research, Chinese Academy of Agricultural Sciences, Anyang, 455000, China
| | - Honghong Wu
- National Key Laboratory of Crop Genetic Improvement, Huazhong Agricultural University, Wuhan, 430070, China
| | - Yichao Wang
- School of Engineering, Design and Built Environment, Western Sydney University, Penrith, NSW 2751, Australia
| | - Wuwei Ye
- Zhengzhou Research Base, National Key Laboratory of Cotton Bio-breeding and Integrated Utilization, School of Agricultural Sciences, Zhengzhou University, Zhengzhou, 450001, China
- National Key Laboratory of Cotton Bio-breeding and Integrated Utilization, Institute of Cotton Research, Chinese Academy of Agricultural Sciences, Anyang, 455000, China
- Western Agricultural Research Center, Chinese Academy of Agricultural Sciences, Changji, 831100, China
| | - Xiangpei Kong
- The Key Laboratory of Plant Development and Environmental Adaptation Biology, Ministry of Education, College of Life Sciences, Shandong University, Qingdao, 266237, China
| | - Zujun Yin
- Zhengzhou Research Base, National Key Laboratory of Cotton Bio-breeding and Integrated Utilization, School of Agricultural Sciences, Zhengzhou University, Zhengzhou, 450001, China
- National Key Laboratory of Cotton Bio-breeding and Integrated Utilization, Institute of Cotton Research, Chinese Academy of Agricultural Sciences, Anyang, 455000, China
- Western Agricultural Research Center, Chinese Academy of Agricultural Sciences, Changji, 831100, China
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Ly LK, Ho TM, Bui TP, Nguyen LT, Phan Q, Le NT, Khuat LTM, Le LH, Chu HH, Pham NB, Do PT. CRISPR/Cas9 targeted mutations of OsDSG1 gene enhanced salt tolerance in rice. Funct Integr Genomics 2024; 24:70. [PMID: 38565780 DOI: 10.1007/s10142-024-01347-6] [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: 01/30/2024] [Revised: 03/19/2024] [Accepted: 03/19/2024] [Indexed: 04/04/2024]
Abstract
Salinization is one of the leading causes of arable land shrinkage and rice yield decline, recently. Therefore, developing and utilizing salt-tolerant rice varieties have been seen as a crucial and urgent strategy to reduce the effects of saline intrusion and protect food security worldwide. In the current study, the CRISPR/Cas9 system was utilized to induce targeted mutations in the coding sequence of the OsDSG1, a gene involved in the ubiquitination pathway and the regulation of biochemical reactions in rice. The CRISPR/Cas9-induced mutations of the OsDSG1 were generated in a local rice cultivar and the mutant inheritance was validated at different generations. The OsDSG1 mutant lines showed an enhancement in salt tolerance compared to wild type plants at both germination and seedling stages indicated by increases in plant height, root length, and total fresh weight as well as the total chlorophyll and relative water contents under the salt stress condition. In addition, lower proline and MDA contents were observed in mutant rice as compared to wild type plants in the presence of salt stress. Importantly, no effect on seed germination and plant growth parameters was recorded in the CRISRP/Cas9-induced mutant rice under the normal condition. This study again indicates the involvement of the OsDSG1 gene in the salt resistant mechanism in rice and provides a potential strategy to enhance the tolerance of local rice varieties to the salt stress.
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Affiliation(s)
- Linh Khanh Ly
- Institute of Biotechnology, Vietnam Academy of Science and Technology, A10 Building, 18 Hoang Quoc Viet, Hanoi, Vietnam
| | - Tuong Manh Ho
- Institute of Biotechnology, Vietnam Academy of Science and Technology, A10 Building, 18 Hoang Quoc Viet, Hanoi, Vietnam
| | - Thao Phuong Bui
- Institute of Biotechnology, Vietnam Academy of Science and Technology, A10 Building, 18 Hoang Quoc Viet, Hanoi, Vietnam
| | - Linh Thi Nguyen
- Institute of Biotechnology, Vietnam Academy of Science and Technology, A10 Building, 18 Hoang Quoc Viet, Hanoi, Vietnam
| | - Quyen Phan
- Institute of Biotechnology, Vietnam Academy of Science and Technology, A10 Building, 18 Hoang Quoc Viet, Hanoi, Vietnam
| | - Ngoc Thu Le
- Institute of Biotechnology, Vietnam Academy of Science and Technology, A10 Building, 18 Hoang Quoc Viet, Hanoi, Vietnam
| | | | | | - Ha Hoang Chu
- Institute of Biotechnology, Vietnam Academy of Science and Technology, A10 Building, 18 Hoang Quoc Viet, Hanoi, Vietnam
- Graduate University of Science and Technology, Vietnam Academy of Science and Technology, Hanoi, Vietnam
| | - Ngoc Bich Pham
- Institute of Biotechnology, Vietnam Academy of Science and Technology, A10 Building, 18 Hoang Quoc Viet, Hanoi, Vietnam.
- Graduate University of Science and Technology, Vietnam Academy of Science and Technology, Hanoi, Vietnam.
| | - Phat Tien Do
- Institute of Biotechnology, Vietnam Academy of Science and Technology, A10 Building, 18 Hoang Quoc Viet, Hanoi, Vietnam.
- Graduate University of Science and Technology, Vietnam Academy of Science and Technology, Hanoi, Vietnam.
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5
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Ye X, Deng Q, Xu S, Huang Y, Wei D, Wang Z, Zhang H, Wang H, Tang Q. CsSPL13A directly binds and positively regulates CsFT and CsBAM to accelerate flowering in cucumber. PLANT PHYSIOLOGY AND BIOCHEMISTRY : PPB 2024; 207:108395. [PMID: 38290342 DOI: 10.1016/j.plaphy.2024.108395] [Citation(s) in RCA: 0] [Impact Index Per Article: 0] [Reference Citation Analysis] [Abstract] [Key Words] [MESH Headings] [Track Full Text] [Subscribe] [Scholar Register] [Received: 11/14/2023] [Revised: 01/15/2024] [Accepted: 01/21/2024] [Indexed: 02/01/2024]
Abstract
Flowering is an important developmental transition that greatly affects the yield of many vegetable crops. In cucumber (Cucumis sativus), flowering is regulated by various factors including squamosa promoter-binding-like (SPL) family proteins. However, the role of CsSPL genes in cucumber flowering remains largely unknown. In this study, we cloned the squamosa promoter-binding-like protein 13A (CsSPL13A) gene, which encodes a highly conserved SBP-domain protein that acts as a transcription factor and localizes to the nucleus. Quantitative real-time PCR (qRT-PCR) analysis showed that CsSPL13A was mainly expressed in flowers, and its expression level increased significantly nearing the flowering stage. Additionally, compared with the wild type(WT), CsSPL13A-overexpressing transgenic cucumber plants (CsSPL13A-OE) showed considerable differences in flowering phenotypes, such as early flowering, increased number of male flowers, and longer flower stalks. CsSPL13A upregulated the expression of the flowering integrator gene Flowering Locus T (CsFT) and the sugar-mediated flowering gene β-amylase (CsBAM) in cucumber. Yeast one-hybrid and firefly enzyme reporter assays confirmed that the CsSPL13A protein could directly bind to the promoters of CsFT and CsBAM, suggesting that CsSPL13A works together with CsFT and CsBAM to mediate flowering in cucumber. Overall, our results provide novel insights into the regulatory network of flowering in cucumber as well as new ideas for the genetic improvement of cucumber varieties.
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Affiliation(s)
- Xu Ye
- College of Horticulture and Landscape Architecture, Southwest University, Chongqing, 400715, China
| | - Qinlin Deng
- College of Horticulture and Landscape Architecture, Southwest University, Chongqing, 400715, China
| | - Shicheng Xu
- College of Horticulture and Landscape Architecture, Southwest University, Chongqing, 400715, China
| | - Yifang Huang
- College of Horticulture and Landscape Architecture, Southwest University, Chongqing, 400715, China
| | - Dayong Wei
- College of Horticulture and Landscape Architecture, Southwest University, Chongqing, 400715, China
| | - Zhimin Wang
- College of Horticulture and Landscape Architecture, Southwest University, Chongqing, 400715, China
| | - Hongcheng Zhang
- Chongqing Academy of Agricultural Sciences, Chongqing, 401329, China
| | - Hebing Wang
- Chongqing Academy of Agricultural Sciences, Chongqing, 401329, China.
| | - Qinglin Tang
- College of Horticulture and Landscape Architecture, Southwest University, Chongqing, 400715, China.
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Ali S, Baloch SB, Bernas J, Konvalina P, Onyebuchi EF, Naveed M, Ali H, Jamali ZH, Nezhad MTK, Mustafa A. Phytotoxicity of radionuclides: A review of sources, impacts and remediation strategies. ENVIRONMENTAL RESEARCH 2024; 240:117479. [PMID: 37884073 DOI: 10.1016/j.envres.2023.117479] [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: 05/02/2023] [Revised: 10/01/2023] [Accepted: 10/22/2023] [Indexed: 10/28/2023]
Abstract
Various anthropogenic activities and natural sources contribute to the presence of radioactive materials in the environment, posing a serious threat to phytotoxicity. Contamination of soil and water by radioactive isotopes degrades the environmental quality and biodiversity. They persist in soils for a considerable amount of time and disturb the fauna and flora of any affected area. Hence, their removal from the contaminated medium is inevitable to prevent their entry into the food chain and the organisms at higher levels of the food chain. Physicochemical methods for radioactive element remediation are effective; however, they are not eco-friendly, can be expensive and impractical for large-scale remediation. Contrastingly, different bioremediation approaches, such as phytoremediation using appropriate plant species for removing the radionuclides from the polluted sites, and microbe-based remediation, represent promising alternatives for cleanup. In this review, sources of radionuclides in soil as well as their hazardous impacts on plants are discussed. Moreover, various conventional physicochemical approaches used for remediation discussed in detail. Similarly, the effectiveness and superiority of various bioremediation approaches, such as phytoremediation and microbe-based remediation, over traditional approaches have been explained in detail. In the end, future perspectives related to enhancing the efficiency of the phytoremediation process have been elaborated.
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Affiliation(s)
- Shahzaib Ali
- Department of Agroecosystems, Faculty of Agriculture and Technology, University of South Bohemia in Ceske Budejovice, Branišovská 1645/31A, 37005, Ceske Budejovice, Czech Republic
| | - Sadia Babar Baloch
- Department of Agroecosystems, Faculty of Agriculture and Technology, University of South Bohemia in Ceske Budejovice, Branišovská 1645/31A, 37005, Ceske Budejovice, Czech Republic
| | - Jaroslav Bernas
- Department of Agroecosystems, Faculty of Agriculture and Technology, University of South Bohemia in Ceske Budejovice, Branišovská 1645/31A, 37005, Ceske Budejovice, Czech Republic.
| | - Petr Konvalina
- Department of Agroecosystems, Faculty of Agriculture and Technology, University of South Bohemia in Ceske Budejovice, Branišovská 1645/31A, 37005, Ceske Budejovice, Czech Republic
| | - Eze Festus Onyebuchi
- Department of Agroecosystems, Faculty of Agriculture and Technology, University of South Bohemia in Ceske Budejovice, Branišovská 1645/31A, 37005, Ceske Budejovice, Czech Republic
| | - Muhammad Naveed
- Institute of Soil and Environmental Sciences, University of Agriculture, Faisalabad, 38040, Pakistan
| | - Hassan Ali
- Institute of Soil and Environmental Sciences, University of Agriculture, Faisalabad, 38040, Pakistan
| | - Zameer Hussain Jamali
- College of Environmental Science, Sichuan Agricultural University, 611130, Chengdu, Sichuan, China
| | - Mohammad Tahsin Karimi Nezhad
- Department of Forest Ecology, The Silva Tarouca Research Institute for Landscape and Ornamental 13 Gardening, Lidicka, 25/27, Brno, 60200, Czech Republic
| | - Adnan Mustafa
- Key Laboratory of Vegetation Restoration and Management of Degraded Ecosystems, South China Botanical Garden, Chinese Academy of Sciences Guangzhou, 510650, China.
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Wang L, Tanveer M, Wang H, Arnao MB. Melatonin as a key regulator in seed germination under abiotic stress. J Pineal Res 2024; 76:e12937. [PMID: 38241678 DOI: 10.1111/jpi.12937] [Citation(s) in RCA: 0] [Impact Index Per Article: 0] [Reference Citation Analysis] [Abstract] [Key Words] [MESH Headings] [Grants] [Track Full Text] [Journal Information] [Submit a Manuscript] [Subscribe] [Scholar Register] [Received: 07/17/2023] [Revised: 12/23/2023] [Accepted: 01/02/2024] [Indexed: 01/21/2024]
Abstract
Seed germination (SG) is the first stage in a plant's life and has an immense importance in sustaining crop production. Abiotic stresses reduce SG by increasing the deterioration of seed quality, and reducing germination potential, and seed vigor. Thus, to achieve a sustainable level of crop yield, it is important to improve SG under abiotic stress conditions. Melatonin (MEL) is an important biomolecule that interplays in developmental processes and regulates many adaptive responses in plants, especially under abiotic stresses. Thus, this review specifically summarizes and discusses the mechanistic basis of MEL-mediated SG under abiotic stresses. MEL regulates SG by regulating some stress-specific responses and some common responses. For instance, MEL induced stress specific responses include the regulation of ionic homeostasis, and hydrolysis of storage proteins under salinity stress, regulation of C-repeat binding factors signaling under cold stress, starch metabolism under high temperature and heavy metal stress, and activation of aquaporins and accumulation of osmolytes under drought stress. On other hand, MEL mediated regulation of gibberellins biosynthesis and abscisic acid catabolism, redox homeostasis, and Ca2+ signaling are amongst the common responses. Nonetheless factors such as endogenous MEL contents, plant species, and growth conditions also influence above-mentioned responses. In conclusion, MEL regulates SG under abiotic stress conditions by interacting with different physiological mechanisms.
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Affiliation(s)
- Lei Wang
- State Key Laboratory of Desert and Oasis Ecology, Xinjiang Institute of Ecology and Geography, Chinese Academy of Sciences, Urumqi, China
| | - Mohsin Tanveer
- State Key Laboratory of Desert and Oasis Ecology, Xinjiang Institute of Ecology and Geography, Chinese Academy of Sciences, Urumqi, China
| | - Hongling Wang
- CAS Research Center for Ecology and Environment of Central Asia, Xinjiang Institute of Ecology and Geography, Chinese Academy of Sciences, Urumqi, China
| | - Marino B Arnao
- Phytohormones & Plant Development Laboratory, Department of Plant Biology (Plant Physiology), University of Murcia, Murcia, Spain
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Cao Y, Hu J, Hou J, Fu C, Zou X, Han X, Jia P, Sun C, Xu Y, Xue Y, Zou Y, Liu X, Chen X, Li G, Guo J, Xu M, Fu A. Vacuolar Sugar Transporter TMT2 Plays Crucial Roles in Germination and Seedling Development in Arabidopsis. Int J Mol Sci 2023; 24:15852. [PMID: 37958835 PMCID: PMC10647555 DOI: 10.3390/ijms242115852] [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: 09/14/2023] [Revised: 10/29/2023] [Accepted: 10/30/2023] [Indexed: 11/15/2023] Open
Abstract
Vacuolar sugar transporters transport sugar across the tonoplast, are major players in maintaining sugar homeostasis, and therefore play vital roles in plant growth, development, and biomass yield. In this study, we analyzed the physiological roles of the tonoplast monosaccharide transporter 2 (TMT2) in Arabidopsis. In contrast to the wild type (WT) that produced uniform seedlings, the tmt2 mutant produced three types of offspring: un-germinated seeds (UnG), seedlings that cannot form true leaves (tmt2-S), and seedlings that develop normally (tmt2-L). Sucrose, glucose, and fructose can substantially, but not completely, rescue the abnormal phenotypes of the tmt2 mutant. Abnormal cotyledon development, arrested true leaf development, and abnormal development of shoot apical meristem (SAM) were observed in tmt2-S seedlings. Cotyledons from the WT and tmt2-L seedlings restored the growth of tmt2-S seedlings through micrografting. Moreover, exogenous sugar sustained normal growth of tmt2-S seedlings with cotyledon removed. Finally, we found that the TMT2 deficiency resulted in growth defects, most likely via changing auxin signaling, target of rapamycin (TOR) pathways, and cellular nutrients. This study unveiled the essential functions of TMT2 for seed germination and initial seedling development, ensuring cotyledon function and mobilizing sugars from cotyledons to seedlings. It also expanded the current knowledge on sugar metabolism and signaling. These findings have fundamental implications for enhancing plant biomass production or seed yield in future agriculture.
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Affiliation(s)
| | | | | | | | | | | | | | | | | | | | | | | | | | | | | | - Min Xu
- Chinese Education Ministry’s Key Laboratory of Western Resources and Modern Biotechnology, Key Laboratory of Biotechnology Shaanxi Province, Shaanxi Key Laboratory for Carbon Neutral Technology, Shaanxi Academy of Basic Sciences, College of Life Sciences, Northwest University, Xi’an 710069, China; (Y.C.); (J.H.); (J.H.); (C.F.); (X.Z.); (X.H.); (P.J.); (C.S.); (Y.X.); (Y.X.); (Y.Z.); (X.L.); (X.C.); (G.L.); (J.G.)
| | - Aigen Fu
- Chinese Education Ministry’s Key Laboratory of Western Resources and Modern Biotechnology, Key Laboratory of Biotechnology Shaanxi Province, Shaanxi Key Laboratory for Carbon Neutral Technology, Shaanxi Academy of Basic Sciences, College of Life Sciences, Northwest University, Xi’an 710069, China; (Y.C.); (J.H.); (J.H.); (C.F.); (X.Z.); (X.H.); (P.J.); (C.S.); (Y.X.); (Y.X.); (Y.Z.); (X.L.); (X.C.); (G.L.); (J.G.)
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9
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Pal B, Bhattacharjee S. Herbal and chemical seed potentiations improve the redox health of aged seeds of indigenous aromatic rice cultivars through regulation of oxidative window, gene expression, and restoration of hormonal homeostasis. PHYSIOLOGY AND MOLECULAR BIOLOGY OF PLANTS : AN INTERNATIONAL JOURNAL OF FUNCTIONAL PLANT BIOLOGY 2023; 29:1269-1288. [PMID: 38024956 PMCID: PMC10678913 DOI: 10.1007/s12298-023-01375-9] [Citation(s) in RCA: 0] [Impact Index Per Article: 0] [Reference Citation Analysis] [Abstract] [Key Words] [Grants] [Track Full Text] [Subscribe] [Scholar Register] [Received: 03/22/2023] [Revised: 10/07/2023] [Accepted: 10/16/2023] [Indexed: 12/01/2023]
Abstract
Previous studies associated with seed potentiation support the critical role of metabolic readjustment in restricting the loss of seed vigor and viability of aged seeds. However, their exact role in the regulation of 'oxidative windows' of potentiated seeds is rarely studied and hence is the subject of the present investigation. Seed potentiation of two contrasting indigenous aromatic rice cultivars, differing in sensitivity towards redox attributes (Oryza sativa L., Cultivars Tulaipanji and Jamainadu), with standardized doses of hydrogen peroxide (20 mM), triadimefon (250 μM), herbal extract (1% aqueous extract of Lantana camara flower) and distilled water before accelerated aging (RH 92% and 41 °C for 24 h) found to have significant impact on redox regulation of aged seeds and improvement of germination phenotypes. The efficacy of integrated RBOH-ascorbate-glutathione/catalase pathway, redox status and other redox fingerprints in the metabolic landscape of potentiated-aged seeds vis-a-vis non-potentiated-aged seeds corroborate the impact of seed potentiation on the regulation of 'oxidative window' of experimental rice seeds. Gene expression analysis of central redox hub enzymes (Osrboh, OsAPx2, OsGRase, OsCatA) strongly substantiates the impact of seed potentiation on transcriptional regulation of genes for redox homeostasis in accelerated aged seeds. The novelty of the current effort is that it suggests a positive nexus between seed potentiation-induced redox regulation and hormonal homeostasis. The efficacy of seed potentiation on the redox regulation of experimental accelerated aged seeds is found to be cultivar-specific and comparatively better in the cultivar Tulaipanji as compared to the cultivar Jamainadu and in the order herbal extract, hydrogen peroxide, hydropriming and triadimefon. Supplementary Information The online version contains supplementary material available at 10.1007/s12298-023-01375-9.
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Affiliation(s)
- Babita Pal
- Plant Physiology and Biochemistry Research Laboratory, UGC Centre for Advanced Study, Department of Botany, University of Burdwan, Burdwan, West Bengal 713104 India
| | - Soumen Bhattacharjee
- Plant Physiology and Biochemistry Research Laboratory, UGC Centre for Advanced Study, Department of Botany, University of Burdwan, Burdwan, West Bengal 713104 India
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Identification and co-expression network analysis of plumule-preferentially expressed genes in Oryza sativa. Genes Genomics 2023; 45:319-336. [PMID: 36708499 DOI: 10.1007/s13258-023-01366-w] [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: 08/23/2022] [Accepted: 01/15/2023] [Indexed: 01/29/2023]
Abstract
BACKGROUND The seedling establishment is controlled by the programmed expression of sets of genes at the specific tissues of seed, abundance and environment. Plumule is an important part of the seed embryo and expresses the suits of genes to exert distinct functions during seed germination. Although rice genomic resources are available and developed rapidly, thousands of transcripts have not previously been located in the plumule of rice. OBJECTIVE This study was performed to identify plumule-preferentially expressed (OsPluP) genes in rice and determine the expression profiles and functions of OsPluP genes. METHODS We identified the OsPluP genes through Affymetrix microarray data. Meanwhile, qRT-PCR was performed to validate the expression pattern, also found that OsPluP genes were regulated by dark/light treatment. The cis-acting regulatory elements were analyzed in the promoters' regions of OsPluP genes. The T-DNA mutant of the OsPluP seed was used to reveal the function in seed germination. RESULTS In this study, a genomic survey of OsPluP genes was performed, and we identified 88 OsPluP genes based on Affymetrix microarray data. The expression profiles of 88 OsPluP members in 24 representative tissues covering rice whole life cycle can be roughly classified into three major groups, suggesting functional divergence of OsPluP genes in seed germination. The microarray data, qRT-PCR, and promoter analysis results demonstrated that transcripts of more than half OsPluPs (54 genes) could be enhanced in the darkness and respond to phytohormone. Gene Ontology (GO)and Kyoto encyclopedia of genes and genomes (KEGG) analysis demonstrated that OsPluP and their co-expressed genes were highly enriched in fatty acid metabolism. Moreover, OsPluP82 T-DNA mutant seeds displayed short plumule length and storage lipid accumulation. CONCLUSION This study would enable the functions of OsPluP genes during seed germination and contribute to the goal of molecular regulatory networks that lay the foundation for further studies of seedling growth.
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Castro-Camba R, Sánchez C, Vidal N, Vielba JM. Plant Development and Crop Yield: The Role of Gibberellins. PLANTS (BASEL, SWITZERLAND) 2022; 11:2650. [PMID: 36235516 PMCID: PMC9571322 DOI: 10.3390/plants11192650] [Citation(s) in RCA: 12] [Impact Index Per Article: 6.0] [Reference Citation Analysis] [Abstract] [Key Words] [Grants] [Track Full Text] [Subscribe] [Scholar Register] [Received: 09/03/2022] [Revised: 09/29/2022] [Accepted: 10/03/2022] [Indexed: 06/12/2023]
Abstract
Gibberellins have been classically related to a few key developmental processes, thus being essential for the accurate unfolding of plant genetic programs. After more than a century of research, over one hundred different gibberellins have been described. There is a continuously increasing interest in gibberellins research because of their relevant role in the so-called "Green Revolution", as well as their current and possible applications in crop improvement. The functions attributed to gibberellins have been traditionally restricted to the regulation of plant stature, seed germination, and flowering. Nonetheless, research in the last years has shown that these functions extend to many other relevant processes. In this review, the current knowledge on gibberellins homeostasis and mode of action is briefly outlined, while specific attention is focused on the many different responses in which gibberellins take part. Thus, those genes and proteins identified as being involved in the regulation of gibberellin responses in model and non-model species are highlighted. The present review aims to provide a comprehensive picture of the state-of-the-art perception of gibberellins molecular biology and its effects on plant development. This picture might be helpful to enhance our current understanding of gibberellins biology and provide the know-how for the development of more accurate research and breeding programs.
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Affiliation(s)
| | | | | | - Jesús Mª Vielba
- Misión Biológica de Galicia, Consejo Superior de Investigaciones Científicas, 15780 Santiago de Compostela, Spain
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