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Aycan M, Nahar L, Baslam M, Mitsui T. Transgenerational plasticity in salinity tolerance of rice: unraveling non-genetic phenotypic modifications and environmental influences. JOURNAL OF EXPERIMENTAL BOTANY 2024; 75:5037-5053. [PMID: 38727615 DOI: 10.1093/jxb/erae211] [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: 04/01/2024] [Accepted: 05/08/2024] [Indexed: 08/29/2024]
Abstract
Transgenerational plasticity in plants enables rapid adaptation to environmental changes, allowing organisms and their offspring to adapt to the environment without altering their underlying DNA. In this study, we investigated the transgenerational plasticity in salinity tolerance of rice plants using a reciprocal transplant experimental strategy. Our aim was to assess whether non-genetic environment-induced phenotypic modifications and transgenerational salinity affect the salinity tolerance of progeny while excluding nuclear genomic factors for two generations. Using salt-tolerant and salt-sensitive rice genotypes, we observed that the parentally salt-stressed salt-sensitive genotype displayed greater growth performance, photosynthetic activity, yield performance, and transcriptional responses than the parentally non-stressed salt-sensitive plants under salt stress conditions. Surprisingly, salt stress-exposed salt-tolerant progeny did not exhibit as much salinity tolerance as salt stress-exposed salt-sensitive progeny under salt stress. Our findings indicate that the phenotypes of offspring plants differed based on the environment experienced by their ancestors, resulting in heritable transgenerational phenotypic modifications in salt-sensitive genotypes via maternal effects. These results elucidated the mechanisms underlying transgenerational plasticity in salinity tolerance, providing valuable insights into how plants respond to changing environmental conditions.
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Affiliation(s)
- Murat Aycan
- Laboratory of Biochemistry, Faculty of Agriculture, Niigata University, Niigata 950-2181, Japan
| | - Lutfun Nahar
- Department of Life and Food Sciences, Graduate School of Science and Technology, Niigata University, Niigata 950-2181, Japan
- Department of Agricultural Botany, Sher-e-Bangla Agricultural University, Dhaka 1207, Bangladesh
| | - Marouane Baslam
- Laboratory of Biochemistry, Faculty of Agriculture, Niigata University, Niigata 950-2181, Japan
- GrowSmart, Seoul 03129, Republic of Korea
- Centre d'Agrobiotechnologie et Bioingénierie, Unité de Recherche labellisée CNRST (Centre AgroBio-tech-URL-CNRST-05), Université Cadi Ayyad, Marrakech, 40000, Morocco
- Laboratory of Agro-Food, Biotechnologies and Valorization of Plant Bioresources (AGROBIOVAL), Department of Biology, Faculty of Science Semlalia, Université Cadi Ayyad, Marrakech, 40000, Morocco
| | - Toshiaki Mitsui
- Laboratory of Biochemistry, Faculty of Agriculture, Niigata University, Niigata 950-2181, Japan
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Fatelnig LMM, Chanyalew S, Tadesse M, Kebede W, Hussein N, Iza F, Tadele Z, Leubner-Metzger G, Steinbrecher T. Seed priming with gas plasma-activated water in Ethiopia's "orphan" crop tef (Eragrostis tef). PLANTA 2024; 259:75. [PMID: 38409565 PMCID: PMC10896766 DOI: 10.1007/s00425-024-04359-5] [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: 08/07/2023] [Accepted: 02/02/2024] [Indexed: 02/28/2024]
Abstract
MAIN CONCLUSION Seed priming with gas plasma-activated water results in an increased ageing resilience in Eragrostis tef grains compared to a conventional hydropriming protocol. Tef (Eragrostis tef) is a cereal grass and a major staple crop of Ethiopia and Eritrea. Despite its significant importance in terms of production, consumption, and cash crop value, tef has been understudied and its productivity is low. In this study, tef grains have undergone different priming treatments to enhance seed vigour and seedling performance. A conventional hydropriming and a novel additive priming technology with gas plasma-activated water (GPAW) have been used and tef grains were then subjected to germination performance assays and accelerated ageing. Tef priming increases the germination speed and vigour of the grains. Priming with GPAW retained the seed storage potential after ageing, therefore, presenting an innovative environmental-friendly seed technology with the prospect to address variable weather conditions and ultimately food insecurity. Seed technology opens new possibilities to increase productivity of tef crop farming to achieve a secure and resilient tef food system and economic growth in Ethiopia by sustainable intensification of agriculture beyond breeding.
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Affiliation(s)
- Lena M M Fatelnig
- Department of Biological Sciences, Royal Holloway University of London, Egham, Surrey, TW20 0EX, UK
| | - Solomon Chanyalew
- Debre Zeit Agricultural Research Center, Ethiopian Institute of Agricultural Research, P.O. Box 32, Debre Zeit, Ethiopia
| | - Mahilet Tadesse
- Debre Zeit Agricultural Research Center, Ethiopian Institute of Agricultural Research, P.O. Box 32, Debre Zeit, Ethiopia
| | - Worku Kebede
- Debre Zeit Agricultural Research Center, Ethiopian Institute of Agricultural Research, P.O. Box 32, Debre Zeit, Ethiopia
| | - Nigusu Hussein
- Debre Zeit Agricultural Research Center, Ethiopian Institute of Agricultural Research, P.O. Box 32, Debre Zeit, Ethiopia
| | - Felipe Iza
- Electrical and Manufacturing Engineering, Wolfson School of Mechanical, Loughborough University, Leicestershire, LE11 3TU, UK
- Division of Advanced Nuclear Engineering, Pohang University of Science and Technology (POSTECH), Pohang, Gyeongbuk, 790-784, South Korea
| | - Zerihun Tadele
- Debre Zeit Agricultural Research Center, Ethiopian Institute of Agricultural Research, P.O. Box 32, Debre Zeit, Ethiopia
- Institute of Plant Sciences, University of Bern, Altenbergrain 21, CH-3013, Bern, Switzerland
| | - Gerhard Leubner-Metzger
- Department of Biological Sciences, Royal Holloway University of London, Egham, Surrey, TW20 0EX, UK
- Laboratory of Growth Regulators, Institute of Experimental Botany, Palacký University, Czech Academy of Sciences, Olomouc, Czech Republic
| | - Tina Steinbrecher
- Department of Biological Sciences, Royal Holloway University of London, Egham, Surrey, TW20 0EX, UK.
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Loades E, Pérez M, Turečková V, Tarkowská D, Strnad M, Seville A, Nakabayashi K, Leubner-Metzger G. Distinct hormonal and morphological control of dormancy and germination in Chenopodium album dimorphic seeds. FRONTIERS IN PLANT SCIENCE 2023; 14:1156794. [PMID: 37063214 PMCID: PMC10098365 DOI: 10.3389/fpls.2023.1156794] [Citation(s) in RCA: 6] [Impact Index Per Article: 6.0] [Reference Citation Analysis] [Abstract] [Key Words] [Grants] [Track Full Text] [Figures] [Subscribe] [Scholar Register] [Received: 02/01/2023] [Accepted: 03/14/2023] [Indexed: 06/19/2023]
Abstract
Dormancy and heteromorphism are innate seed properties that control germination timing through adaptation to the prevailing environment. The degree of variation in dormancy depth within a seed population differs considerably depending on the genotype and maternal environment. Dormancy is therefore a key trait of annual weeds to time seedling emergence across seasons. Seed heteromorphism, the production of distinct seed morphs (in color, mass or other morphological characteristics) on the same individual plant, is considered to be a bet-hedging strategy in unpredictable environments. Heteromorphic species evolved independently in several plant families and the distinct seed morphs provide an additional degree of variation. Here we conducted a comparative morphological and molecular analysis of the dimorphic seeds (black and brown) of the Amaranthaceae weed Chenopodium album. Freshly harvested black and brown seeds differed in their dormancy and germination responses to ambient temperature. The black seed morph of seedlot #1 was dormant and 2/3rd of the seed population had non-deep physiological dormancy which was released by after-ripening (AR) or gibberellin (GA) treatment. The deeper dormancy of the remaining 1/3rd non-germinating seeds required in addition ethylene and nitrate for its release. The black seeds of seedlot #2 and the brown seed morphs of both seedlots were non-dormant with 2/3rd of the seeds germinating in the fresh mature state. The dimorphic seeds and seedlots differed in testa (outer seed coat) thickness in that thick testas of black seeds of seedlot #1 conferred coat-imposed dormancy. The dimorphic seeds and seedlots differed in their abscisic acid (ABA) and GA contents in the dry state and during imbibition in that GA biosynthesis was highest in brown seeds and ABA degradation was faster in seedlot #2. Chenopodium genes for GA and ABA metabolism were identified and their distinct transcript expression patterns were quantified in dry and imbibed C. album seeds. Phylogenetic analyses of the Amaranthaceae sequences revealed a high proportion of expanded gene families within the Chenopodium genus. The identified hormonal, molecular and morphological mechanisms and dormancy variation of the dimorphic seeds of C. album and other Amaranthaceae are compared and discussed as adaptations to variable and stressful environments.
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Affiliation(s)
- Eddison Loades
- Department of Biological Sciences, Royal Holloway University of London, Egham, United Kingdom
| | - Marta Pérez
- Department of Biological Sciences, Royal Holloway University of London, Egham, United Kingdom
| | - Veronika Turečková
- Laboratory of Growth Regulators, Faculty of Science, Palacký University and Institute of Experimental Botany, Czech Academy of Sciences, Olomouc, Czechia
| | - Danuše Tarkowská
- Laboratory of Growth Regulators, Faculty of Science, Palacký University and Institute of Experimental Botany, Czech Academy of Sciences, Olomouc, Czechia
| | - Miroslav Strnad
- Laboratory of Growth Regulators, Faculty of Science, Palacký University and Institute of Experimental Botany, Czech Academy of Sciences, Olomouc, Czechia
| | - Anne Seville
- Crop Protection Research, Syngenta, Jealott’s Hill International Research Centre, Bracknell, United Kingdom
| | - Kazumi Nakabayashi
- Department of Biological Sciences, Royal Holloway University of London, Egham, United Kingdom
| | - Gerhard Leubner-Metzger
- Department of Biological Sciences, Royal Holloway University of London, Egham, United Kingdom
- Laboratory of Growth Regulators, Faculty of Science, Palacký University and Institute of Experimental Botany, Czech Academy of Sciences, Olomouc, Czechia
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Batlla D, Malavert C, Farnocchia RBF, Footitt S, Benech-Arnold RL, Finch-Savage WE. A quantitative analysis of temperature-dependent seasonal dormancy cycling in buried Arabidopsis thaliana seeds can predict seedling emergence in a global warming scenario. JOURNAL OF EXPERIMENTAL BOTANY 2022; 73:2454-2468. [PMID: 35106531 DOI: 10.1093/jxb/erac038] [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: 10/22/2021] [Accepted: 01/31/2022] [Indexed: 06/14/2023]
Abstract
Understanding how the environment regulates seed-bank dormancy changes is essential for forecasting seedling emergence in actual and future climatic scenarios, and to interpret studies of dormancy mechanisms at physiological and molecular levels. Here, we used a population threshold modelling approach to analyse dormancy changes through variations in the thermal range permissive for germination in buried seeds of Arabidopsis thaliana Cvi, a winter annual ecotype. Results showed that changes in dormancy level were mainly associated with variations in the higher limit of the thermal range permissive for germination. Changes in this limit were positively related to soil temperature during dormancy release and induction, and could be predicted using thermal time. From this, we developed a temperature-driven simulation to predict the fraction of the seed bank able to germinate in a realistic global warming scenario that approximated seedling emergence timing. Simulations predicted, in accordance with seedling emergence observed in the field, an increase in the fraction of the seed bank able to emerge as a result of global warming. In addition, our results suggest that buried seeds perceive changes in the variability of the mean daily soil temperature as the signal to change between dormancy release and induction according to the seasons.
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Affiliation(s)
- Diego Batlla
- Universidad de Buenos Aires, Facultad de Agronomía, Departamento de Producción Vegetal, Cátedra de Cerealicultura, Ciudad de Buenos Aires, Argentina
- Instituto de Fisiología y Ecología Vinculado a la Agricultura, Consejo Nacional de Investigaciones Científicas y Técnicas (IFEVA-CONICET), Ciudad de Buenos Aires, Argentina
| | - Cristian Malavert
- Universidad de Buenos Aires, Facultad de Agronomía, Departamento de Producción Vegetal, Cátedra de Cultivos Industriales, Ciudad de Buenos Aires, Argentina
- Instituto de Fisiología y Ecología Vinculado a la Agricultura, Consejo Nacional de Investigaciones Científicas y Técnicas (IFEVA-CONICET), Ciudad de Buenos Aires, Argentina
| | - Rocío Belén Fernández Farnocchia
- Universidad de Buenos Aires, Facultad de Agronomía, Departamento de Producción Vegetal, Cátedra de Cultivos Industriales, Ciudad de Buenos Aires, Argentina
- Instituto de Fisiología y Ecología Vinculado a la Agricultura, Consejo Nacional de Investigaciones Científicas y Técnicas (IFEVA-CONICET), Ciudad de Buenos Aires, Argentina
| | - Steven Footitt
- Department of Molecular Biology and Genetics, Boğaziçi University, Bebek, Istanbul, Turkey
| | - Roberto Luis Benech-Arnold
- Universidad de Buenos Aires, Facultad de Agronomía, Departamento de Producción Vegetal, Cátedra de Cultivos Industriales, Ciudad de Buenos Aires, Argentina
- Instituto de Fisiología y Ecología Vinculado a la Agricultura, Consejo Nacional de Investigaciones Científicas y Técnicas (IFEVA-CONICET), Ciudad de Buenos Aires, Argentina
| | - William E Finch-Savage
- School of Life Sciences, University of Warwick, Wellesbourne Campus, Warwickshire CV35 9EF, UK
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Steinbrecher T, Leubner-Metzger G. Xyloglucan remodelling enzymes and the mechanics of plant seed and fruit biology. JOURNAL OF EXPERIMENTAL BOTANY 2022; 73:1253-1257. [PMID: 35235657 PMCID: PMC8890615 DOI: 10.1093/jxb/erac020] [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] [Indexed: 06/14/2023]
Abstract
This article comments on: Di Marzo M, Ebeling Viana V, Banfi C, Cassina V, Corti R, Herrera-Ubaldo H, Babolin N, Guazzotti A, Kiegle E, Gregis V, de Folter S, Sampedro J, Mantegazza F, Colombo L, Ezquer I. 2022. Cell wall modifications by α-XYLOSIDASE1 are required for the control of seed and fruit size. Journal of Experimental Botany 73, 1499–1515.
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Affiliation(s)
- Tina Steinbrecher
- Department of Biological Sciences, Royal Holloway University of London, Egham, Surrey TW20 0EX, UK
| | - Gerhard Leubner-Metzger
- Department of Biological Sciences, Royal Holloway University of London, Egham, Surrey TW20 0EX, UK
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Nakabayashi K, Leubner-Metzger G. Seed dormancy and weed emergence: from simulating environmental change to understanding trait plasticity, adaptive evolution, and population fitness. JOURNAL OF EXPERIMENTAL BOTANY 2021; 72:4181-4185. [PMID: 34048571 PMCID: PMC8163051 DOI: 10.1093/jxb/erab150] [Citation(s) in RCA: 6] [Impact Index Per Article: 2.0] [Reference Citation Analysis] [Abstract] [Key Words] [MESH Headings] [Grants] [Track Full Text] [Figures] [Subscribe] [Scholar Register] [Received: 03/31/2021] [Accepted: 03/31/2021] [Indexed: 06/12/2023]
Abstract
This article comments on: Fernández Farnocchia RB, Benech-Arnold RL, Mantese A, Batlla D. 2021. Optimization of timing of next-generation emergence in Amaranthus hybridus is determined via modulation of seed dormancy by the maternal environment. Journal of Experimental Botany 72, 4283–4297.
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Affiliation(s)
- Kazumi Nakabayashi
- Department of Biological Sciences, Royal Holloway University of London, Egham, Surrey TW20 0EX, UK
| | - Gerhard Leubner-Metzger
- Department of Biological Sciences, Royal Holloway University of London, Egham, Surrey TW20 0EX, UK
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