1
|
Waterworth W, Balobaid A, West C. Seed longevity and genome damage. Biosci Rep 2024; 44:BSR20230809. [PMID: 38324350 PMCID: PMC11111285 DOI: 10.1042/bsr20230809] [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: 11/21/2023] [Revised: 02/06/2024] [Accepted: 02/07/2024] [Indexed: 02/08/2024] Open
Abstract
Seeds are the mode of propagation for most plant species and form the basis of both agriculture and ecosystems. Desiccation tolerant seeds, representative of most crop species, can survive maturation drying to become metabolically quiescent. The desiccated state prolongs embryo viability and provides protection from adverse environmental conditions, including seasonal periods of drought and freezing often encountered in temperate regions. However, the capacity of the seed to germinate declines over time and culminates in the loss of seed viability. The relationship between environmental conditions (temperature and humidity) and the rate of seed deterioration (ageing) is well defined, but less is known about the biochemical and genetic factors that determine seed longevity. This review will highlight recent advances in our knowledge that provide insight into the cellular stresses and protective mechanisms that promote seed survival, with a focus on the roles of DNA repair and response mechanisms. Collectively, these pathways function to maintain the germination potential of seeds. Understanding the molecular basis of seed longevity provides important new genetic targets for the production of crops with enhanced resilience to changing climates and knowledge important for the preservation of plant germplasm in seedbanks.
Collapse
Affiliation(s)
- Wanda Waterworth
- Centre for Plant Sciences, University of Leeds, Woodhouse Lane, Leeds LS2
9JT, U.K
| | - Atheer Balobaid
- Centre for Plant Sciences, University of Leeds, Woodhouse Lane, Leeds LS2
9JT, U.K
| | - Chris West
- Centre for Plant Sciences, University of Leeds, Woodhouse Lane, Leeds LS2
9JT, U.K
| |
Collapse
|
2
|
Pagano A, Kunz L, Dittmann A, Araújo SDS, Macovei A, Shridhar Gaonkar S, Sincinelli F, Wazeer H, Balestrazzi A. Changes in Medicago truncatula seed proteome along the rehydration-dehydration cycle highlight new players in the genotoxic stress response. FRONTIERS IN PLANT SCIENCE 2023; 14:1188546. [PMID: 37409306 PMCID: PMC10319343 DOI: 10.3389/fpls.2023.1188546] [Citation(s) in RCA: 0] [Impact Index Per Article: 0] [Reference Citation Analysis] [Abstract] [Key Words] [Track Full Text] [Figures] [Subscribe] [Scholar Register] [Received: 03/17/2023] [Accepted: 05/24/2023] [Indexed: 07/07/2023]
Abstract
Introduction Several molecular aspects underlying the seed response to priming and the resulting vigor profile are still poorly understood. Mechanisms involved in genome maintenance deserve attention since the balance between stimulation of germination and DNA damage accumulation versus active repair is a key determinant for designing successful seed priming protocols. Methods Changes in the Medicago truncatula seed proteome were investigated in this study, using discovery mass spectrometry and label-free quantification, along the rehydration-dehydration cycle of a standard vigorization treatment (hydropriming plus dry-back), and during post-priming imbibition. Resuts and discussion From 2056 to 2190 proteins were detected in each pairwise comparison, among which six were differentially accumulated and 36 were detected only in one condition. The following proteins were selected for further investigation: MtDRP2B (DYNAMIN-RELATED PROTEIN), MtTRXm4 (THIOREDOXIN m4), and MtASPG1 (ASPARTIC PROTEASE IN GUARD CELL 1) showing changes in seeds under dehydration stress; MtITPA (INOSINE TRIPHOSPHATE PYROPHOSPHORYLASE), MtABA2 (ABSCISIC ACID DEFICIENT 2), MtRS2Z32 (SERINE/ARGININE-RICH SPLICING FACTOR RS2Z32), and MtAQR (RNA HELICASE AQUARIUS) that were differentially regulated during post-priming imbibition. Changes in the corresponding transcript levels were assessed by qRT-PCR. In animal cells, ITPA hydrolyses 2'-deoxyinosine triphosphate and other inosine nucleotides, preventing genotoxic damage. A proof of concept was performed by imbibing primed and control M. truncatula seeds in presence/absence of 20 mM 2'-deoxyinosine (dI). Results from comet assay highlighted the ability of primed seeds to cope with dI-induced genotoxic damage. The seed repair response was assessed by monitoring the expression profiles of MtAAG (ALKYL-ADENINE DNA GLYCOSILASE) and MtEndoV (ENDONUCLEASE V) genes that participate in the repair of the mismatched I:T pair in BER (base excision repair) and AER (alternative excision repair) pathways, respectively.
Collapse
Affiliation(s)
- Andrea Pagano
- Department of Biology and Biotechnology ‘L. Spallanzani’, University of Pavia, Pavia, Italy
| | - Laura Kunz
- Functional Genomics Center Zurich (FGCZ), University of Zurich/Eidgenossische Technische Hochschule (ETH) Zurich, Zurich, Switzerland
| | - Antje Dittmann
- Functional Genomics Center Zurich (FGCZ), University of Zurich/Eidgenossische Technische Hochschule (ETH) Zurich, Zurich, Switzerland
| | - Susana De Sousa Araújo
- Association BLC3 - Campus of Technology and Innovation, Centre BIO R&D Unit | North Delegation, Macedo de Cavaleiros, Portugal
| | - Anca Macovei
- Department of Biology and Biotechnology ‘L. Spallanzani’, University of Pavia, Pavia, Italy
- National Biodiversity Future Center (NBFC), Palermo, Italy
| | | | - Federico Sincinelli
- Department of Biology and Biotechnology ‘L. Spallanzani’, University of Pavia, Pavia, Italy
| | - Hisham Wazeer
- Department of Biology and Biotechnology ‘L. Spallanzani’, University of Pavia, Pavia, Italy
| | - Alma Balestrazzi
- Department of Biology and Biotechnology ‘L. Spallanzani’, University of Pavia, Pavia, Italy
- National Biodiversity Future Center (NBFC), Palermo, Italy
| |
Collapse
|
3
|
Pagano A, Macovei A, Balestrazzi A. Molecular dynamics of seed priming at the crossroads between basic and applied research. PLANT CELL REPORTS 2023; 42:657-688. [PMID: 36780009 PMCID: PMC9924218 DOI: 10.1007/s00299-023-02988-w] [Citation(s) in RCA: 0] [Impact Index Per Article: 0] [Reference Citation Analysis] [Abstract] [Key Words] [MESH Headings] [Grants] [Track Full Text] [Figures] [Subscribe] [Scholar Register] [Received: 08/05/2022] [Accepted: 01/20/2023] [Indexed: 06/18/2023]
Abstract
The potential of seed priming is still not fully exploited. Our limited knowledge of the molecular dynamics of seed pre-germinative metabolism is the main hindrance to more effective new-generation techniques. Climate change and other recent global crises are disrupting food security. To cope with the current demand for increased food, feed, and biofuel production, while preserving sustainability, continuous technological innovation should be provided to the agri-food sector. Seed priming, a pre-sowing technique used to increase seed vigor, has become a valuable tool due to its potential to enhance germination and stress resilience under changing environments. Successful priming protocols result from the ability to properly act on the seed pre-germinative metabolism and stimulate events that are crucial for seed quality. However, the technique still requires constant optimization, and researchers are committed to addressing some key open questions to overcome such drawbacks. In this review, an update of the current scientific and technical knowledge related to seed priming is provided. The rehydration-dehydration cycle associated with priming treatments can be described in terms of metabolic pathways that are triggered, modulated, or turned off, depending on the seed physiological stage. Understanding the ways seed priming affects, either positively or negatively, such metabolic pathways and impacts gene expression and protein/metabolite accumulation/depletion represents an essential step toward the identification of novel seed quality hallmarks. The need to expand the basic knowledge on the molecular mechanisms ruling the seed response to priming is underlined along with the strong potential of applied research on primed seeds as a source of seed quality hallmarks. This route will hasten the implementation of seed priming techniques needed to support sustainable agriculture systems.
Collapse
Affiliation(s)
- Andrea Pagano
- Department of Biology and Biotechnology 'L. Spallanzani', Via Ferrata 1, 27100, Pavia, Italy
| | - Anca Macovei
- Department of Biology and Biotechnology 'L. Spallanzani', Via Ferrata 1, 27100, Pavia, Italy
- National Biodiversity Future Center (NBFC), 90133, Palermo, Italy
| | - Alma Balestrazzi
- Department of Biology and Biotechnology 'L. Spallanzani', Via Ferrata 1, 27100, Pavia, Italy.
- National Biodiversity Future Center (NBFC), 90133, Palermo, Italy.
| |
Collapse
|
4
|
Griffo A, Bosco N, Pagano A, Balestrazzi A, Macovei A. Noninvasive Methods to Detect Reactive Oxygen Species as a Proxy of Seed Quality. Antioxidants (Basel) 2023; 12:antiox12030626. [PMID: 36978875 PMCID: PMC10045522 DOI: 10.3390/antiox12030626] [Citation(s) in RCA: 0] [Impact Index Per Article: 0] [Reference Citation Analysis] [Abstract] [Track Full Text] [Journal Information] [Subscribe] [Scholar Register] [Received: 02/09/2023] [Revised: 02/25/2023] [Accepted: 02/28/2023] [Indexed: 03/06/2023] Open
Abstract
ROS homeostasis is crucial to maintain radical levels in a dynamic equilibrium within physiological ranges. Therefore, ROS quantification in seeds with different germination performance may represent a useful tool to predict the efficiency of common methods to enhance seed vigor, such as priming treatments, which are still largely empirical. In the present study, ROS levels were investigated in an experimental system composed of hydroprimed and heat-shocked seeds, thus comparing materials with improved or damaged germination potential. A preliminary phenotypic analysis of germination parameters and seedling growth allowed the selection of the best-per-forming priming protocols for species like soybean, tomato, and wheat, having relevant agroeconomic value. ROS levels were quantified by using two noninvasive assays, namely dichloro-dihydro-fluorescein diacetate (DCFH-DA) and ferrous oxidation-xylenol orange (FOX-1). qRT-PCR was used to assess the expression of genes encoding enzymes involved in ROS production (respiratory burst oxidase homolog family, RBOH) and scavenging (catalase, superoxide dismutase, and peroxidases). The correlation analyses between ROS levels and gene expression data suggest a possible use of these indicators as noninvasive approaches to evaluate seed quality. These findings are relevant given the centrality of seed quality for crop production and the potential of seed priming in sustainable agricultural practices.
Collapse
Affiliation(s)
- Adriano Griffo
- Department of Biology and Biotechnology ‘L. Spallanzani’, University of Pavia, Via Ferrata 9, 27100 Pavia, Italy
| | - Nicola Bosco
- Department of Biology and Biotechnology ‘L. Spallanzani’, University of Pavia, Via Ferrata 9, 27100 Pavia, Italy
| | - Andrea Pagano
- Department of Biology and Biotechnology ‘L. Spallanzani’, University of Pavia, Via Ferrata 9, 27100 Pavia, Italy
| | - Alma Balestrazzi
- Department of Biology and Biotechnology ‘L. Spallanzani’, University of Pavia, Via Ferrata 9, 27100 Pavia, Italy
- National Biodiversity Future Center (NBFC), 90133 Palermo, Italy
| | - Anca Macovei
- Department of Biology and Biotechnology ‘L. Spallanzani’, University of Pavia, Via Ferrata 9, 27100 Pavia, Italy
- National Biodiversity Future Center (NBFC), 90133 Palermo, Italy
- Correspondence:
| |
Collapse
|
5
|
Zhang X, Sun Y, Qiu X, Lu H, Hwang I, Wang T. Tolerant mechanism of model legume plant Medicago truncatula to drought, salt, and cold stresses. FRONTIERS IN PLANT SCIENCE 2022; 13:847166. [PMID: 36160994 PMCID: PMC9490062 DOI: 10.3389/fpls.2022.847166] [Citation(s) in RCA: 4] [Impact Index Per Article: 2.0] [Reference Citation Analysis] [Abstract] [Key Words] [Grants] [Track Full Text] [Figures] [Subscribe] [Scholar Register] [Received: 01/01/2022] [Accepted: 08/15/2022] [Indexed: 06/16/2023]
Abstract
Legume plants produce one-third of the total yield of primary crops and are important food sources for both humans and animals worldwide. Frequent exposure to abiotic stresses, such as drought, salt, and cold, greatly limits the production of legume crops. Several morphological, physiological, and molecular studies have been conducted to characterize the response and adaptation mechanism to abiotic stresses. The tolerant mechanisms of the model legume plant Medicago truncatula to abiotic stresses have been extensively studied. Although many potential genes and integrated networks underlying the M. truncatula in responding to abiotic stresses have been identified and described, a comprehensive summary of the tolerant mechanism is lacking. In this review, we provide a comprehensive summary of the adaptive mechanism by which M. truncatula responds to drought, salt, and cold stress. We also discuss future research that need to be explored to improve the abiotic tolerance of legume plants.
Collapse
Affiliation(s)
- Xiuxiu Zhang
- College of Biological Sciences and Biotechnology, Beijing Forestry University, Beijing, China
- State Key Laboratory of Vegetation and Environmental Change, Institute of Botany, Chinese Academy of Sciencess, Beijing, China
| | - Yu Sun
- Key Laboratory of Mollisols Agroecology, Northeast Institute of Geography and Agroecology, Chinese Academy of Sciencess, Changchun, China
| | - Xiao Qiu
- Inner Mongolia Academy of Agricultural and Animal Husbandry Sciences, Hohhot, China
| | - Hai Lu
- College of Biological Sciences and Biotechnology, Beijing Forestry University, Beijing, China
| | - Inhwan Hwang
- Department of Life Sciences, Pohang University of Science and Technology, Pohang, South Korea
| | - Tianzuo Wang
- State Key Laboratory of Vegetation and Environmental Change, Institute of Botany, Chinese Academy of Sciencess, Beijing, China
- College of Resources and Environment, University of Chinese Academy of Sciences, Beijing, China
| |
Collapse
|
6
|
Xu M, Ye J, Wang Y, Chu K, Péré M, Xu M, Tang X, Fu J. Vitamin E performs antioxidant effect via PAP retrograde signaling pathway in Nile tilapia (Oreochromis niloticus). FISH & SHELLFISH IMMUNOLOGY 2022; 127:918-924. [PMID: 35863536 DOI: 10.1016/j.fsi.2022.07.021] [Citation(s) in RCA: 2] [Impact Index Per Article: 1.0] [Reference Citation Analysis] [Abstract] [Key Words] [MESH Headings] [Track Full Text] [Subscribe] [Scholar Register] [Received: 05/30/2022] [Revised: 07/04/2022] [Accepted: 07/11/2022] [Indexed: 06/15/2023]
Abstract
PAP (3'-phosphoadenosine 5'-phosphate) is a ubiquitous phosphoric acid and a natural inhibitor of the XRN (5'-3'exoribonuclease) family. It was proved to enter the nucleus through the retrograde signaling pathway and inhibit XRN2 to prevent the degradation of miRNA precursors, thus promoting the anti-oxidation miRNA level in Arabidopsis thaliana. Vitamin E (tocopherol) was proved to promote the accumulation of PAP in the plant, which facilitates PAP into the nucleus to accomplish its antioxidant function. However, the relationship between VE and PAP in animals is unclear. To identify the relationship between VE and PAP and to uncover the function of PAP in fish, we investigated the performance of VE and PAP in Nile tilapia by comparing the antioxidant indicators (SOD, GSH-Px, and CAT), the Keap1-Nrf2 signaling pathway, and the miRNA expression profiles. Results showed that the antioxidant effect of VE and PAP showed similar character either in tilapia liver or in serum: the activities of GSH-Px and CAT of both groups were significantly increased (P < 0.05); the SOD activity of the VE group was significantly increased (P < 0.05), and although the result of the PAP group was not so significant (P > 0.05), PAP improved the SOD level, too. The two groups also showed similar character in the tilapia liver; both did not significantly increase the liver δ-VE content (P > 0.05). However, VE significantly increased the content of α-VE and γ-VE (P < 0.05), while the PAP group was insignificant (P > 0.05). Feed with VE and intraperitoneal injection of PAPs reagent both increased the PAP content in the liver of tilapia, and the effect of the VE group was more significant (P < 0.05) than that of the PAP group (P > 0.05). Both groups reduced the expression of Keap1 and Cullin3 genes and improved the level of HO-1 gene expression, with the improved miRNA level of Nrf2. As a logical result, they decreased the expression of XRN1 and XRN2. By profile sequencing, we further identified some antioxidant closely related miRNAs shared in the VE and PAP groups, including miR-30, miR-24, miR-19b, and miR-100. By comparing the regulating mechanism of VE and PAP of feed supply and intraperitoneal injection, we proved that VE and PAP were closely related in fish; VE promoted the gathering of PAP. The latter retrograded into the nucleus of the fish liver to inhibit the expression of XRN genes and to up-regulate antioxidant miRNA levels as it does in plants. Only the PAP can accomplish the antioxidant activities, while VE promotes the process. Our study laid the foundation for the application of PAP as a new antioxidant agent in fish farming and benefit a further understanding of the VE antioxidant function in fish.
Collapse
Affiliation(s)
- Minjun Xu
- Laboratory of Guangdong Province and Hong Kong Region on Marine Bioresource Conservation and Exploitation, College of Marine Sciences, South China Agricultural University, Guangzhou, 510642, China; Guangdong Modern Agricultural (Quality and Safety of Aquatic Products) Industrial Technology R&D Center, Guangzhou, 510642, China
| | - Jiawei Ye
- Laboratory of Guangdong Province and Hong Kong Region on Marine Bioresource Conservation and Exploitation, College of Marine Sciences, South China Agricultural University, Guangzhou, 510642, China
| | - Yujie Wang
- Laboratory of Guangdong Province and Hong Kong Region on Marine Bioresource Conservation and Exploitation, College of Marine Sciences, South China Agricultural University, Guangzhou, 510642, China
| | - Kejie Chu
- Laboratory of Guangdong Province and Hong Kong Region on Marine Bioresource Conservation and Exploitation, College of Marine Sciences, South China Agricultural University, Guangzhou, 510642, China
| | - Maxime Péré
- Laboratory of Guangdong Province and Hong Kong Region on Marine Bioresource Conservation and Exploitation, College of Marine Sciences, South China Agricultural University, Guangzhou, 510642, China
| | - Minjie Xu
- Guangdong Modern Agricultural (Quality and Safety of Aquatic Products) Industrial Technology R&D Center, Guangzhou, 510642, China
| | - Xuelian Tang
- Laboratory of Guangdong Province and Hong Kong Region on Marine Bioresource Conservation and Exploitation, College of Marine Sciences, South China Agricultural University, Guangzhou, 510642, China.
| | - Jinghua Fu
- Laboratory of Guangdong Province and Hong Kong Region on Marine Bioresource Conservation and Exploitation, College of Marine Sciences, South China Agricultural University, Guangzhou, 510642, China.
| |
Collapse
|
7
|
Pagano A, Gualtieri C, Mutti G, Raveane A, Sincinelli F, Semino O, Balestrazzi A, Macovei A. Identification and Characterization of SOG1 (Suppressor of Gamma-Response 1) Homologues in Plants Using Data Mining Resources and Gene Expression Profiling. Genes (Basel) 2022; 13:genes13040667. [PMID: 35456473 PMCID: PMC9026448 DOI: 10.3390/genes13040667] [Citation(s) in RCA: 1] [Impact Index Per Article: 0.5] [Reference Citation Analysis] [Abstract] [MESH Headings] [Track Full Text] [Download PDF] [Figures] [Journal Information] [Subscribe] [Scholar Register] [Received: 03/20/2022] [Revised: 04/04/2022] [Accepted: 04/06/2022] [Indexed: 12/10/2022] Open
Abstract
SOG1 (Suppressor of the Gamma response 1) is the master-regulator of plant DNA damage response (DDR), a highly coordinated network of DNA damage sensors, transducers, mediators, and effectors, with highly coordinated activities. SOG1 transcription factor belongs to the NAC/NAM protein family, containing the well-conserved NAC domain and five serine-glutamine (SQ) motifs, preferential targets for phosphorylation by ATM and ATR. So far, the information gathered for the SOG1 function comes from studies on the model plant Arabidopsis thaliana. To expand the knowledge on plant-specific DDR, it is opportune to gather information on other SOG1 orthologues. The current study identified plants where multiple SOG1 homologues are present and evaluated their functions by leveraging the information contained in publicly available transcriptomics databases. This analysis revealed the presence of multiple SOG1 sequences in thirteen plant species, and four (Medicago truncatula, Glycine max, Kalankoe fedtschenkoi, Populus trichocarpa) were selected for gene expression data mining based on database availability. Additionally, M. truncatula seeds and seedlings exposed to treatments known to activate DDR pathways were used to evaluate the expression profiles of MtSOG1a and MtSOG1b. The experimental workflow confirmed the data retrieved from transcriptomics datasets, suggesting that the SOG1 homologues have redundant functions in different plant species.
Collapse
|