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Hoenicka H, Bein S, Starczak M, Graf W, Hanelt D, Gackowski D. β-Aminobutyric acid promotes stress tolerance, physiological adjustments, as well as broad epigenetic changes at DNA and RNA nucleobases in field elms (Ulmus minor). BMC PLANT BIOLOGY 2024; 24:779. [PMID: 39148013 PMCID: PMC11325618 DOI: 10.1186/s12870-024-05425-6] [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: 08/31/2023] [Accepted: 07/15/2024] [Indexed: 08/17/2024]
Abstract
BACKGROUND β-Aminobutyric acid (BABA) has been successfully used to prime stress resistance in numerous plant species; however, its effectiveness in forest trees has been poorly explored thus far. This study aimed to investigate the influence of BABA on morphological, physiological, and epigenetic parameters in field elms under various growth conditions. Epigenetic changes were assessed in both DNA and RNA through the use of reversed-phase ultra-performance liquid chromatography (UPLC) coupled with sensitive mass spectrometry. RESULTS The presented results confirm the influence of BABA on the development, physiology, and stress tolerance in field elms. However, the most important findings are related to the broad epigenetic changes promoted by this amino acid, which involve both DNA and RNA. Our findings confirm, for the first time, that BABA influences not only well-known epigenetic markers in plants, such as 5-methylcytosine, but also several other non-canonical nucleobases, such as 5-hydroxymethyluracil, 5-formylcytosine, 5-hydroxymethylcytosine, N6-methyladenine, uracil (in DNA) and thymine (in RNA). The significant effect on the levels of N6-methyladenine, the main bacterial epigenetic marker, is particularly noteworthy. In this case, the question arises as to whether this effect is due to epigenetic changes in the microbiome, the plant genome, or both. CONCLUSIONS The plant phenotype is the result of complex interactions between the plant's DNA, the microbiome, and the environment. We propose that different types of epigenetic changes in the plant and microbiome may play important roles in the largely unknown memory process that enables plants to adapt faster to changing environmental conditions.
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Affiliation(s)
- Hans Hoenicka
- Thünen Institute of Forest Genetics, Sieker Landstr. 2, D-22927, Grosshansdorf, Germany.
| | - Susanne Bein
- Thünen Institute of Forest Genetics, Sieker Landstr. 2, D-22927, Grosshansdorf, Germany
| | - Marta Starczak
- Department of Clinical Biochemistry, Faculty of Pharmacy, Collegium Medicum in Bydgoszcz, Nicolaus Copernicus University in Toruń, Karlowicza 24, Bydgoszcz, 85-095, Poland
| | - Wolfgang Graf
- Thünen Institute of Forest Genetics, Sieker Landstr. 2, D-22927, Grosshansdorf, Germany
| | - Dieter Hanelt
- Institute of Plant Science and Microbiology, University of Hamburg, Ohnhorst. 18, D-22609, Hamburg, Germany
| | - Daniel Gackowski
- Department of Clinical Biochemistry, Faculty of Pharmacy, Collegium Medicum in Bydgoszcz, Nicolaus Copernicus University in Toruń, Karlowicza 24, Bydgoszcz, 85-095, Poland
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Berindean IV, Taoutaou A, Rida S, Ona AD, Stefan MF, Costin A, Racz I, Muntean L. Modern Breeding Strategies and Tools for Durable Late Blight Resistance in Potato. PLANTS (BASEL, SWITZERLAND) 2024; 13:1711. [PMID: 38931143 PMCID: PMC11207681 DOI: 10.3390/plants13121711] [Citation(s) in RCA: 0] [Impact Index Per Article: 0] [Reference Citation Analysis] [Abstract] [Key Words] [Grants] [Track Full Text] [Subscribe] [Scholar Register] [Received: 04/29/2024] [Revised: 06/08/2024] [Accepted: 06/15/2024] [Indexed: 06/28/2024]
Abstract
Cultivated potato (Solanum tuberosum) is a major crop worldwide. It occupies the second place after cereals (corn, rice, and wheat). This important crop is threatened by the Oomycete Phytophthora infestans, the agent of late blight disease. This pathogen was first encountered during the Irish famine during the 1840s and is a reemerging threat to potatoes. It is mainly controlled chemically by using fungicides, but due to health and environmental concerns, the best alternative is resistance. When there is no disease, no treatment is required. In this study, we present a summary of the ongoing efforts concerning resistance breeding of potato against this devastating pathogen, P. infestans. This work begins with the search for and selection of resistance genes, whether they are from within or from outside the species. The genetic methods developed to date for gene mining, such as effectoromics and GWAS, provide researchers with the ability to identify genes of interest more efficiently. Once identified, these genes are cloned using molecular markers (MAS or QRL) and can then be introduced into different cultivars using somatic hybridization or recombinant DNA technology. More innovative technologies have been developed lately, such as gene editing using the CRISPR system or gene silencing, by exploiting iRNA strategies that have emerged as promising tools for managing Phytophthora infestans, which can be employed. Also, gene pyramiding or gene stacking, which involves the accumulation of two or more R genes on the same individual plant, is an innovative method that has yielded many promising results. All these advances related to the development of molecular techniques for obtaining new potato cultivars resistant to P. infestans can contribute not only to reducing losses in agriculture but especially to ensuring food security and safety.
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Affiliation(s)
- Ioana Virginia Berindean
- Department of Crops Sciences: Genetics, Faculty of Agriculture, University of Agricultural Sciences and Veterinary Medicine Cluj-Napoca, Calea Manastur 3-5, 400372 Cluj-Napoca, Romania; (I.V.B.)
| | - Abdelmoumen Taoutaou
- Laboratoire de Phytopathologie et Biologie Moléculaire, Département de Botanique, École Nationale, Supérieure Agronomique, Avenue Pasteur (ENSA-ES 1603), Hassan Badi, El-Harrach, Algiers 16200, Algeria
| | - Soumeya Rida
- Département d’Agronomie, Faculté des Sciences de la Nature et de la Vie (SNV), Université Chadli Bendjedid, BP N°73, El Tarf 36000, Algeria
| | - Andreea Daniela Ona
- Department of Crops Sciences: Plant Breeding, Faculty of Agriculture, University of Agricultural Sciences and Veterinary Medicine Cluj-Napoca, Calea Manastur 3-5, 400372 Cluj-Napoca, Romania; (A.D.O.)
| | - Maria Floriana Stefan
- National Institute of Research and Development for Potato and Sugar Beet Braşov, Fundaturii Street 2, 500470 Braşov, Romania
| | - Alexandru Costin
- Department of Crops Sciences: Plant Breeding, Faculty of Agriculture, University of Agricultural Sciences and Veterinary Medicine Cluj-Napoca, Calea Manastur 3-5, 400372 Cluj-Napoca, Romania; (A.D.O.)
| | - Ionut Racz
- Department of Crops Sciences: Genetics, Faculty of Agriculture, University of Agricultural Sciences and Veterinary Medicine Cluj-Napoca, Calea Manastur 3-5, 400372 Cluj-Napoca, Romania; (I.V.B.)
| | - Leon Muntean
- Department of Crops Sciences: Plant Breeding, Faculty of Agriculture, University of Agricultural Sciences and Veterinary Medicine Cluj-Napoca, Calea Manastur 3-5, 400372 Cluj-Napoca, Romania; (A.D.O.)
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Grin IR, Petrova DV, Endutkin AV, Ma C, Yu B, Li H, Zharkov DO. Base Excision DNA Repair in Plants: Arabidopsis and Beyond. Int J Mol Sci 2023; 24:14746. [PMID: 37834194 PMCID: PMC10573277 DOI: 10.3390/ijms241914746] [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] [Revised: 09/27/2023] [Accepted: 09/27/2023] [Indexed: 10/15/2023] Open
Abstract
Base excision DNA repair (BER) is a key pathway safeguarding the genome of all living organisms from damage caused by both intrinsic and environmental factors. Most present knowledge about BER comes from studies of human cells, E. coli, and yeast. Plants may be under an even heavier DNA damage threat from abiotic stress, reactive oxygen species leaking from the photosynthetic system, and reactive secondary metabolites. In general, BER in plant species is similar to that in humans and model organisms, but several important details are specific to plants. Here, we review the current state of knowledge about BER in plants, with special attention paid to its unique features, such as the existence of active epigenetic demethylation based on the BER machinery, the unexplained diversity of alkylation damage repair enzymes, and the differences in the processing of abasic sites that appear either spontaneously or are generated as BER intermediates. Understanding the biochemistry of plant DNA repair, especially in species other than the Arabidopsis model, is important for future efforts to develop new crop varieties.
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Affiliation(s)
- Inga R. Grin
- Siberian Branch of the Russian Academy of Sciences Institute of Chemical Biology and Fundamental Medicine, 8 Lavrentieva Ave., Novosibirsk 630090, Russia; (D.V.P.); (A.V.E.)
- Department of Natural Sciences, Novosibirsk State University, 2 Pirogova St., Novosibirsk 630090, Russia
| | - Daria V. Petrova
- Siberian Branch of the Russian Academy of Sciences Institute of Chemical Biology and Fundamental Medicine, 8 Lavrentieva Ave., Novosibirsk 630090, Russia; (D.V.P.); (A.V.E.)
| | - Anton V. Endutkin
- Siberian Branch of the Russian Academy of Sciences Institute of Chemical Biology and Fundamental Medicine, 8 Lavrentieva Ave., Novosibirsk 630090, Russia; (D.V.P.); (A.V.E.)
| | - Chunquan Ma
- Engineering Research Center of Agricultural Microbiology Technology, Ministry of Education, Harbin 150080, China; (C.M.); (B.Y.); (H.L.)
- Heilongjiang Provincial Key Laboratory of Plant Genetic Engineering and Biological Fermentation Engineering for Cold Region, Harbin 150080, China
- School of Life Sciences, Heilongjiang University, Harbin 150080, China
| | - Bing Yu
- Engineering Research Center of Agricultural Microbiology Technology, Ministry of Education, Harbin 150080, China; (C.M.); (B.Y.); (H.L.)
- Heilongjiang Provincial Key Laboratory of Plant Genetic Engineering and Biological Fermentation Engineering for Cold Region, Harbin 150080, China
- School of Life Sciences, Heilongjiang University, Harbin 150080, China
| | - Haiying Li
- Engineering Research Center of Agricultural Microbiology Technology, Ministry of Education, Harbin 150080, China; (C.M.); (B.Y.); (H.L.)
- Heilongjiang Provincial Key Laboratory of Plant Genetic Engineering and Biological Fermentation Engineering for Cold Region, Harbin 150080, China
- School of Life Sciences, Heilongjiang University, Harbin 150080, China
| | - Dmitry O. Zharkov
- Siberian Branch of the Russian Academy of Sciences Institute of Chemical Biology and Fundamental Medicine, 8 Lavrentieva Ave., Novosibirsk 630090, Russia; (D.V.P.); (A.V.E.)
- Department of Natural Sciences, Novosibirsk State University, 2 Pirogova St., Novosibirsk 630090, Russia
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Feng CH, Niu MX, Zhao S, Guo S, Yin W, Xia X, Su Y. Aspartyl tRNA-synthetase (AspRS) gene family enhances drought tolerance in poplar through BABA-PtrIBIs-PtrVOZ signaling module. BMC Genomics 2023; 24:473. [PMID: 37605104 PMCID: PMC10441740 DOI: 10.1186/s12864-023-09556-2] [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: 04/04/2023] [Accepted: 08/04/2023] [Indexed: 08/23/2023] Open
Abstract
BACKGROUND Drought stress is a prevalent abiotic stress that significantly hinders the growth and development of plants. According to studies, β-aminobutyric acid (BABA) can influence the ABA pathway through the AtIBI1 receptor gene to enhance cold resistance in Arabidopsis. However, the Aspartate tRNA-synthetase (AspRS) gene family, which acts as the receptor for BABA, has not yet been investigated in poplar. Particularly, it is uncertain how the AspRS gene family (PtrIBIs)r can resist drought stress after administering various concentrations of BABA to poplar. RESULTS In this study, we have identified 12 AspRS family genes and noted that poplar acquired four PtrIBI pairs through whole genome duplication (WGD). We conducted cis-action element analysis and found a significant number of stress-related action elements on different PtrIBI genes promoters. The expression of most PtrIBI genes was up-regulated under beetle and mechanical damage stresses, indicating their potential role in responding to leaf damage stress. Our results suggest that a 50 mM BABA treatment can alleviate the damage caused by drought stress in plants. Additionally, via transcriptome sequencing, we observed that the partial up-regulation of BABA receptor genes, PtrIBI2/4/6/8/11, in poplars after drought treatment. We hypothesize that poplar responds to drought stress through the BABA-PtrIBIs-PtrVOZ coordinated ABA signaling pathway. Our research provides molecular evidence for understanding how plants respond to drought stress through external application of BABA. CONCLUSIONS In summary, our study conducted genome-wide analysis of the AspRS family of P. trichocarpa and identified 12 PtrIBI genes. We utilized genomics and bioinformatics to determine various characteristics of PtrIBIs such as chromosomal localization, evolutionary tree, gene structure, gene doubling, promoter cis-elements, and expression profiles. Our study found that certain PtrIBI genes are regulated by drought, beetle, and mechanical damage implying their crucial role in enhancing poplar stress tolerance. Additionally, we observed that external application of low concentrations of BABA increased plant drought resistance under drought stress. Through the BABA-PtrIBIs-PtrVOZ signaling module, poplar plants were able to transduce ABA signaling and regulate their response to drought stress. These results suggest that the PtrIBI genes in poplar have the potential to improve drought tolerance in plants through the topical application of low concentrations of BABA.
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Affiliation(s)
- Cong-Hua Feng
- College of Agronomy, Liaocheng University, Liaocheng, 252000, China
- National Engineering Laboratory for Tree Breeding, College of Biological Sciences and Technology, Beijing Forestry University, Beijing, 100083, China
| | - Meng-Xue Niu
- National Engineering Laboratory for Tree Breeding, College of Biological Sciences and Technology, Beijing Forestry University, Beijing, 100083, China
| | - Shilei Zhao
- College of Agronomy, Liaocheng University, Liaocheng, 252000, China
| | - Shangjing Guo
- College of Agronomy, Liaocheng University, Liaocheng, 252000, China
| | - Weilun Yin
- National Engineering Laboratory for Tree Breeding, College of Biological Sciences and Technology, Beijing Forestry University, Beijing, 100083, China
| | - Xinli Xia
- National Engineering Laboratory for Tree Breeding, College of Biological Sciences and Technology, Beijing Forestry University, Beijing, 100083, China
| | - Yanyan Su
- College of Agronomy, Liaocheng University, Liaocheng, 252000, China.
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Furci L, Pascual‐Pardo D, Tirot L, Zhang P, Hannan Parker A, Ton J. Heritable induced resistance in Arabidopsis thaliana: Tips and tools to improve effect size and reproducibility. PLANT DIRECT 2023; 7:e523. [PMID: 37638230 PMCID: PMC10457550 DOI: 10.1002/pld3.523] [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: 04/28/2023] [Revised: 07/18/2023] [Accepted: 07/31/2023] [Indexed: 08/29/2023]
Abstract
Over a decade ago, three independent studies reported that pathogen- and herbivore-exposed Arabidopsis thaliana produces primed progeny with increased resistance. Since then, heritable induced resistance (h-IR) has been reported across numerous plant-biotic interactions, revealing a regulatory function of DNA (de)methylation dynamics. However, the identity of the epi-alleles controlling h-IR and the mechanisms by which they prime defense genes remain unknown, while the evolutionary significance of the response requires confirmation. Progress has been hampered by the relatively high variability, low effect size, and sometimes poor reproducibility of h-IR, as is exemplified by a recent study that failed to reproduce h-IR in A. thaliana by Pseudomonas syringae pv. tomato (Pst). This study aimed to improve h-IR effect size and reproducibility in the A. thaliana-Pst interaction. We show that recurrent Pst inoculations of seedlings result in stronger h-IR than repeated inoculations of older plants and that disease-related growth repression in the parents is a reliable marker for h-IR effect size in F1 progeny. Furthermore, RT-qPCR-based expression profiling of genes controlling DNA methylation maintenance revealed that the elicitation of strong h-IR upon seedling inoculations is marked by reduced expression of the chromatin remodeler DECREASE IN DNA METHYLATION 1 (DDM1) gene, which is maintained in the apical meristem and transmitted to F1 progeny. Two additional genes, MET1 and CHROMOMETHYLASE3 (CMT3), displayed similar transcriptional repression in progeny from seedling-inoculated plants. Thus, reduced expression of DDM1, MET1, and CMT3 can serve as a marker of robust h-IR in F1 progeny. Our report offers valuable information and markers to improve the effect size and reproducibility of h-IR in the A. thaliana-Pst model interaction.
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Affiliation(s)
- L. Furci
- Plants, Photosynthesis and Soil, School of Biosciences, Institute for Sustainable FoodThe University of SheffieldSheffieldUK
- Plant Epigenetics UnitOkinawa Institute of Science and TechnologyOnnaOkinawaJapan
| | - D. Pascual‐Pardo
- Plants, Photosynthesis and Soil, School of Biosciences, Institute for Sustainable FoodThe University of SheffieldSheffieldUK
| | - L. Tirot
- Plants, Photosynthesis and Soil, School of Biosciences, Institute for Sustainable FoodThe University of SheffieldSheffieldUK
| | - P. Zhang
- Plants, Photosynthesis and Soil, School of Biosciences, Institute for Sustainable FoodThe University of SheffieldSheffieldUK
| | - A. Hannan Parker
- Plants, Photosynthesis and Soil, School of Biosciences, Institute for Sustainable FoodThe University of SheffieldSheffieldUK
| | - J. Ton
- Plants, Photosynthesis and Soil, School of Biosciences, Institute for Sustainable FoodThe University of SheffieldSheffieldUK
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Hernández-Soberano C, López-Bucio J, Valencia-Cantero E. The Bacterial Volatile Organic Compound N,N-Dimethylhexadecylamine Induces Long-Lasting Developmental and Immune Responses throughout the Life Cycle of Arabidopsis thaliana. PLANTS (BASEL, SWITZERLAND) 2023; 12:1540. [PMID: 37050166 PMCID: PMC10096718 DOI: 10.3390/plants12071540] [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: 03/08/2023] [Revised: 03/30/2023] [Accepted: 03/31/2023] [Indexed: 06/19/2023]
Abstract
N,N-dimethylhexadecylamine (DMHDA) is a bacterial volatile organic compound that affects plant growth and morphogenesis and is considered a cross-kingdom signal molecule. Its bioactivity involves crosstalk with the cytokinin and jasmonic acid (JA) pathways to control stem cell niches and induce iron deficiency adaptation and plant defense. In this study, through genetic analysis, we show that the DMHDA-JA-Ethylene (ET) relations determine the magnitude of the defensive response mounted during the infestation of Arabidopsis plants by the pathogenic fungus Botrytis cinerea. The Arabidopsis mutants defective in the JA receptor CORONATINE INSENSITIVE 1 (coi1-1) showed a more severe infestation when compared to wild-type plants (Col-0) that were partially restored by DMHDA supplements. Moreover, the oversensitivity manifested by ETHYLENE INSENSITIVE 2 (ein2) by B. cinerea infestation could not be reverted by the volatile, suggesting a role for this gene in DMHDA reinforcement of immunity. Growth of Col-0 plants was inhibited by DMHDA, but ein2 did not. Noteworthy, Arabidopsis seeds treated with DMHDA produced more vigorous plants throughout their life cycle. These data are supportive of a scenario where plant perception of a bacterial volatile influences the resistance to a fungal phytopathogen while modulating plant growth.
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Affiliation(s)
| | - José López-Bucio
- Instituto de Investigaciones Químico Biológicas, Universidad Michoacana de San Nicolás de Hidalgo, Morelia 58030, Michoacán, Mexico;
| | - Eduardo Valencia-Cantero
- Instituto de Investigaciones Químico Biológicas, Universidad Michoacana de San Nicolás de Hidalgo, Morelia 58030, Michoacán, Mexico;
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De Kesel J, Bonneure E, Frei M, De Meyer T, Mangelinckx S, Kyndt T. Diproline-induced resistance to parasitic nematodes in the same and subsequent rice generations: Roles of iron, nitric oxide and ethylene. FRONTIERS IN PLANT SCIENCE 2023; 14:1112007. [PMID: 36824193 PMCID: PMC9941634 DOI: 10.3389/fpls.2023.1112007] [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: 11/30/2022] [Accepted: 01/20/2023] [Indexed: 06/18/2023]
Abstract
Induced resistance (IR) is a plant phenotype characterized by lower susceptibility to biotic challenges upon elicitation by so-called IR stimuli. Earlier, we identified diproline (cyclo(l-Pro-l-Pro)) as IR stimulus that protects rice (Oryza sativa) against the root-knot nematode Meloidogyne graminicola (Mg). In the current study, detailed transcriptome analyses at different time points, and under uninfected and nematode-infected conditions revealed that this rice IR phenotype is correlated with induction of genes related to iron (Fe), ethylene (ET) and reactive oxygen species (ROS)/reactive nitrogen species (RNS) metabolism. An infection experiment under Fe limiting conditions confirmed that diproline-IR is only effective under optimal Fe supply. Although total root Fe levels were not affected in diproline-treated plants, phytosiderophore secretion was found to be induced by this treatment. Experiments on mutant and transgenic rice lines impaired in ET or ROS/RNS metabolism confirmed that these metabolites are involved in diproline-IR. Finally, we provide evidence for transgenerational inheritance of diproline-IR (diproline-TIR), as two successive generations of diproline-treated ancestors exhibited an IR phenotype while themselves never being exposed to diproline. Transcriptome analyses on the offspring plants revealed extensive overlap between the pathways underpinning diproline-IR and diproline-TIR. Although diproline induces significant systemic changes in global DNA methylation levels early after treatment, such changes in DNA methylation were not detected in the descendants of these plants. To our knowledge, this is the first report of TIR in rice and the first transcriptional assessment of TIR in monocots.
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Affiliation(s)
- Jonas De Kesel
- Department of Biotechnology, Faculty of Bioscience Engineering, Ghent University, Ghent, Belgium
| | - Eli Bonneure
- Department of Green Chemistry and Technology, Faculty of Bioscience Engineering, Ghent University, Ghent, Belgium
| | - Michael Frei
- Department of Agronomy and Crop Physiology, Institute for Agronomy and Plant Breeding, Justus Liebig University Giessen, Giessen, Germany
| | - Tim De Meyer
- Department of Data Analysis and Mathematical Modelling, Faculty of Bioscience Engineering, Ghent University, Ghent, Belgium
| | - Sven Mangelinckx
- Department of Green Chemistry and Technology, Faculty of Bioscience Engineering, Ghent University, Ghent, Belgium
| | - Tina Kyndt
- Department of Biotechnology, Faculty of Bioscience Engineering, Ghent University, Ghent, Belgium
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Drozda A, Kurpisz B, Guan Y, Arasimowicz-Jelonek M, Plich J, Jagodzik P, Kuźnicki D, Floryszak-Wieczorek J. Insights into the expression of DNA (de)methylation genes responsive to nitric oxide signaling in potato resistance to late blight disease. FRONTIERS IN PLANT SCIENCE 2022; 13:1033699. [PMID: 36618647 PMCID: PMC9815718 DOI: 10.3389/fpls.2022.1033699] [Citation(s) in RCA: 2] [Impact Index Per Article: 1.0] [Reference Citation Analysis] [Abstract] [Key Words] [Grants] [Track Full Text] [Figures] [Subscribe] [Scholar Register] [Received: 08/31/2022] [Accepted: 11/08/2022] [Indexed: 06/17/2023]
Abstract
Our previous study concerning the pathogen-induced biphasic pattern of nitric oxide (NO) burst revealed that the decline phase and a low level of NO, due to S-nitrosoglutathione reductase (GSNOR) activity, might be decisive in the upregulation of stress-sensitive genes via histone H3/H4 methylation in potato leaves inoculated with avr P. infestans. The present study refers to the NO-related impact on genes regulating DNA (de)methylation, being in dialog with histone methylation. The excessive amounts of NO after the pathogen or GSNO treatment forced the transient upregulation of histone SUVH4 methylation and DNA hypermethylation. Then the diminished NO bioavailability reduced the SUVH4-mediated suppressive H3K9me2 mark on the R3a gene promoter and enhanced its transcription. However, we found that the R3a gene is likely to be controlled by the RdDM methylation pathway. The data revealed the time-dependent downregulation of the DCL3, AGO4, and miR482e genes, exerting upregulation of the targeted R3a gene correlated with ROS1 overexpression. Based on these results, we postulate that the biphasic waves of NO burst in response to the pathogen appear crucial in establishing potato resistance to late blight through the RdDM pathway controlling R gene expression.
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Affiliation(s)
- Andżelika Drozda
- Department of Plant Physiology, Faculty of Agronomy, Horticulture and Bioengineering, Poznań University of Life Sciences, Poznań, Poland
| | - Barbara Kurpisz
- Department of Plant Physiology, Faculty of Agronomy, Horticulture and Bioengineering, Poznań University of Life Sciences, Poznań, Poland
| | - Yufeng Guan
- Department of Plant Physiology, Faculty of Agronomy, Horticulture and Bioengineering, Poznań University of Life Sciences, Poznań, Poland
- Department of Plant Ecophysiology, Faculty of Biology, Adam Mickiewicz University in Poznań, Poznań, Poland
| | | | - Jarosław Plich
- Plant Breeding and Acclimatization Institute - National Research Institute, Młochów, Poland
| | - Przemysław Jagodzik
- Department of Plant Ecophysiology, Faculty of Biology, Adam Mickiewicz University in Poznań, Poznań, Poland
| | - Daniel Kuźnicki
- Department of Plant Physiology, Faculty of Agronomy, Horticulture and Bioengineering, Poznań University of Life Sciences, Poznań, Poland
| | - Jolanta Floryszak-Wieczorek
- Department of Plant Physiology, Faculty of Agronomy, Horticulture and Bioengineering, Poznań University of Life Sciences, Poznań, Poland
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Rajpal VR, Rathore P, Mehta S, Wadhwa N, Yadav P, Berry E, Goel S, Bhat V, Raina SN. Epigenetic variation: A major player in facilitating plant fitness under changing environmental conditions. Front Cell Dev Biol 2022; 10:1020958. [PMID: 36340045 PMCID: PMC9628676 DOI: 10.3389/fcell.2022.1020958] [Citation(s) in RCA: 4] [Impact Index Per Article: 2.0] [Reference Citation Analysis] [Abstract] [Track Full Text] [Download PDF] [Figures] [Journal Information] [Subscribe] [Scholar Register] [Received: 08/16/2022] [Accepted: 09/21/2022] [Indexed: 11/13/2022] Open
Abstract
Recent research in plant epigenetics has increased our understanding of how epigenetic variability can contribute to adaptive phenotypic plasticity in natural populations. Studies show that environmental changes induce epigenetic switches either independently or in complementation with the genetic variation. Although most of the induced epigenetic variability gets reset between generations and is short-lived, some variation becomes transgenerational and results in heritable phenotypic traits. The short-term epigenetic responses provide the first tier of transient plasticity required for local adaptations while transgenerational epigenetic changes contribute to stress memory and help the plants respond better to recurring or long-term stresses. These transgenerational epigenetic variations translate into an additional tier of diversity which results in stable epialleles. In recent years, studies have been conducted on epigenetic variation in natural populations related to various biological processes, ecological factors, communities, and habitats. With the advent of advanced NGS-based technologies, epigenetic studies targeting plants in diverse environments have increased manifold to enhance our understanding of epigenetic responses to environmental stimuli in facilitating plant fitness. Taking all points together in a frame, the present review is a compilation of present-day knowledge and understanding of the role of epigenetics and its fitness benefits in diverse ecological systems in natural populations.
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Affiliation(s)
- Vijay Rani Rajpal
- Department of Botany, Hansraj College, University of Delhi, Delhi, India
- *Correspondence: Vijay Rani Rajpal, , ; Shailendra Goel, ; Vishnu Bhat, ; Soom Nath Raina,
| | | | - Sahil Mehta
- School of Agricultural Sciences, K.R. Mangalam University, Gurugram, Haryana, India
| | - Nikita Wadhwa
- University School of Biotechnology, Guru Gobind Singh Indraprastha University, New Delhi, India
| | | | - Eapsa Berry
- Maharishi Kanad Bhawan, Delhi School of Climate Change and Sustainability, University of Delhi, Delhi, India
| | - Shailendra Goel
- Department of Botany, University of Delhi, Delhi, India
- *Correspondence: Vijay Rani Rajpal, , ; Shailendra Goel, ; Vishnu Bhat, ; Soom Nath Raina,
| | - Vishnu Bhat
- Department of Botany, University of Delhi, Delhi, India
- *Correspondence: Vijay Rani Rajpal, , ; Shailendra Goel, ; Vishnu Bhat, ; Soom Nath Raina,
| | - Soom Nath Raina
- Amity Institute of Biotechnology, Amity University, Noida, Uttar Pradesh, India
- *Correspondence: Vijay Rani Rajpal, , ; Shailendra Goel, ; Vishnu Bhat, ; Soom Nath Raina,
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10
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Azevedo V, Daddiego L, Cardone MF, Perrella G, Sousa L, Santos RB, Malhó R, Bergamini C, Marsico AD, Figueiredo A, Alagna F. Transcriptomic and methylation analysis of susceptible and tolerant grapevine genotypes following Plasmopara viticola infection. PHYSIOLOGIA PLANTARUM 2022; 174:e13771. [PMID: 36053855 PMCID: PMC9826190 DOI: 10.1111/ppl.13771] [Citation(s) in RCA: 0] [Impact Index Per Article: 0] [Reference Citation Analysis] [Abstract] [MESH Headings] [Grants] [Track Full Text] [Figures] [Subscribe] [Scholar Register] [Received: 05/31/2022] [Revised: 08/05/2022] [Accepted: 08/29/2022] [Indexed: 06/15/2023]
Abstract
Downy mildew, caused by the biotrophic oomycete Plasmopara viticola, is one of the most economically significant grapevine diseases worldwide. Current strategies to cope with this threat rely on the massive use of chemical compounds during each cultivation season. The economic costs and negative environmental impact associated with these applications increased the urge to search for sustainable strategies of disease control. Improved knowledge of plant mechanisms to counteract pathogen infection may allow the development of alternative strategies for plant protection. Epigenetic regulation, in particular DNA methylation, is emerging as a key factor in the context of plant-pathogen interactions associated with the expression modulation of defence genes. To improve our understanding of the genetic and epigenetic mechanisms underpinning grapevine response to P. viticola, we studied the modulation of both 5-mC methylation and gene expression at 6 and 24 h post-infection (hpi). Leaves of two table grape genotypes (Vitis vinifera), selected by breeding activities for their contrasting level of susceptibility to the pathogen, were analysed. Following pathogen infection, we found variations in the 5-mC methylation level and the gene expression profile. The results indicate a genotype-specific response to pathogen infection. The tolerant genotype (N23/018) at 6 hpi exhibits a lower methylation level compared to the susceptible one (N20/020), and it shows an early modulation (at 6 hpi) of defence and epigenetic-related genes during P. viticola infection. These data suggest that the timing of response is an important mechanism to efficiently counteract the pathogen attack.
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Affiliation(s)
- Vanessa Azevedo
- Faculdade de Ciências, Plant Biology Department, Biosystems & Integrative Sciences Institute (BioISI)Universidade de LisboaLisbonPortugal
| | - Loretta Daddiego
- Energy Technologies and Renewable Sources DepartmentNational Agency for New Technologies, Energy and Sustainable Economic Development (ENEA), Trisaia Research CentreRotondellaMateraItaly
| | - Maria Francesca Cardone
- Research Centre for Viticulture and EnologyCouncil for Agricultural Research and Economics (CREA)TuriBariItaly
| | | | - Lisete Sousa
- Department of Statistics and Operations Research, Faculdade de Ciências; Centre of Statistics and its Applications (CEAUL)Universidade de LisboaLisbonPortugal
| | - Rita B. Santos
- Faculdade de Ciências, Plant Biology Department, Biosystems & Integrative Sciences Institute (BioISI)Universidade de LisboaLisbonPortugal
| | - Rui Malhó
- Faculdade de Ciências, Plant Biology Department, Biosystems & Integrative Sciences Institute (BioISI)Universidade de LisboaLisbonPortugal
| | - Carlo Bergamini
- Research Centre for Viticulture and EnologyCouncil for Agricultural Research and Economics (CREA)TuriBariItaly
| | - Antonio Domenico Marsico
- Research Centre for Viticulture and EnologyCouncil for Agricultural Research and Economics (CREA)TuriBariItaly
| | - Andreia Figueiredo
- Faculdade de Ciências, Plant Biology Department, Biosystems & Integrative Sciences Institute (BioISI)Universidade de LisboaLisbonPortugal
| | - Fiammetta Alagna
- Energy Technologies and Renewable Sources DepartmentNational Agency for New Technologies, Energy and Sustainable Economic Development (ENEA), Trisaia Research CentreRotondellaMateraItaly
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11
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Villagómez-Aranda AL, Feregrino-Pérez AA, García-Ortega LF, González-Chavira MM, Torres-Pacheco I, Guevara-González RG. Activating stress memory: eustressors as potential tools for plant breeding. PLANT CELL REPORTS 2022; 41:1481-1498. [PMID: 35305133 PMCID: PMC8933762 DOI: 10.1007/s00299-022-02858-x] [Citation(s) in RCA: 5] [Impact Index Per Article: 2.5] [Reference Citation Analysis] [Abstract] [Key Words] [MESH Headings] [Grants] [Track Full Text] [Subscribe] [Scholar Register] [Received: 12/08/2021] [Accepted: 02/26/2022] [Indexed: 05/08/2023]
Abstract
Plants are continuously exposed to stress conditions, such that they have developed sophisticated and elegant survival strategies, which are reflected in their phenotypic plasticity, priming capacity, and memory acquisition. Epigenetic mechanisms play a critical role in modulating gene expression and stress responses, allowing malleability, reversibility, stability, and heritability of favourable phenotypes to enhance plant performance. Considering the urgency to improve our agricultural system because of going impacting climate change, potential and sustainable strategies rely on the controlled use of eustressors, enhancing desired characteristics and yield and shaping stress tolerance in crops. However, for plant breeding purposes is necessary to focus on the use of eustressors capable of establishing stable epigenetic marks to generate a transgenerational memory to stimulate a priming state in plants to face the changing environment.
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Affiliation(s)
- A L Villagómez-Aranda
- Biosystems Engineering Group. Engineering Faculty, Amazcala Campus, Autonomous University of Querétaro, Highway Chichimequillas s/n Km 1, Amazcala, El Marques, Querétaro, Mexico
| | - A A Feregrino-Pérez
- Biosystems Engineering Group. Engineering Faculty, Amazcala Campus, Autonomous University of Querétaro, Highway Chichimequillas s/n Km 1, Amazcala, El Marques, Querétaro, Mexico
| | - L F García-Ortega
- Laboratory of Learning and Research in Biological Computing, Centre for Research and Advanced Studies, National Polytechnic Institute (CINVESTAV), Irapuato, Guanajuato, Mexico
| | - M M González-Chavira
- Molecular Markers Laboratory, Bajío Experimental Field, National Institute for Forestry, Agriculture and Livestock Research (INIFAP), Celaya-San Miguel de Allende, Celaya, Guanajuato, Mexico
| | - I Torres-Pacheco
- Biosystems Engineering Group. Engineering Faculty, Amazcala Campus, Autonomous University of Querétaro, Highway Chichimequillas s/n Km 1, Amazcala, El Marques, Querétaro, Mexico
| | - R G Guevara-González
- Biosystems Engineering Group. Engineering Faculty, Amazcala Campus, Autonomous University of Querétaro, Highway Chichimequillas s/n Km 1, Amazcala, El Marques, Querétaro, Mexico.
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12
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Liu H, Able AJ, Able JA. Priming crops for the future: rewiring stress memory. TRENDS IN PLANT SCIENCE 2022; 27:699-716. [PMID: 34906381 DOI: 10.1016/j.tplants.2021.11.015] [Citation(s) in RCA: 62] [Impact Index Per Article: 31.0] [Reference Citation Analysis] [Abstract] [Key Words] [MESH Headings] [Track Full Text] [Subscribe] [Scholar Register] [Received: 07/08/2021] [Revised: 11/10/2021] [Accepted: 11/17/2021] [Indexed: 05/12/2023]
Abstract
The agricultural sector must produce resilient and climate-smart crops to meet the increasing needs of global food production. Recent advancements in elucidating the mechanistic basis of plant stress memory have provided new opportunities for crop improvement. Stress memory-coordinated changes at the organismal, cellular, and various omics levels prepare plants to be more responsive to reoccurring stress within or across generation(s). The exposure to a primary stress, or stress priming, can also elicit a beneficial impact when encountering a secondary abiotic or biotic stress through the convergence of synergistic signalling pathways, referred to as cross-stress tolerance. 'Rewired plants' with stress memory provide a new means to stimulate adaptable stress responses, safeguard crop reproduction, and engineer climate-smart crops for the future.
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Affiliation(s)
- Haipei Liu
- School of Agriculture, Food & Wine, Waite Research Institute, The University of Adelaide, Urrbrae, SA 5064, Australia
| | - Amanda J Able
- School of Agriculture, Food & Wine, Waite Research Institute, The University of Adelaide, Urrbrae, SA 5064, Australia
| | - Jason A Able
- School of Agriculture, Food & Wine, Waite Research Institute, The University of Adelaide, Urrbrae, SA 5064, Australia.
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13
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Pereira G, Pereira J, Santos RB, Figueiredo A. Uncovering the role of DNA methyltransferases in grapevine - Plasmopara viticola interaction: From genome-wide characterization to global methylation patterns. Gene 2022; 837:146693. [PMID: 35738444 DOI: 10.1016/j.gene.2022.146693] [Citation(s) in RCA: 1] [Impact Index Per Article: 0.5] [Reference Citation Analysis] [Abstract] [Key Words] [Track Full Text] [Journal Information] [Subscribe] [Scholar Register] [Received: 11/09/2021] [Revised: 05/10/2022] [Accepted: 06/17/2022] [Indexed: 11/04/2022]
Abstract
Epigenetic regulation has recently gained prominence in the field of plant-pathogen interactions, providing a deeper understanding of the molecular mechanisms associated with plant infection. In grapevine interaction with pathogens, epigenetic regulation still remains a black box. In this work, we characterized grapevine DNA methyltransferase gene family and identified nine DNA methyltransferases genes across eight grapevine chromosomes coding for 17 proteins. We also assessed the modulation of global cytosine methylation and gene expression levels of these genes with the aim of establishing a connection between DNA methylation and grapevine resistance towards downy mildew. Our results revealed that, in the incompatible interaction, an early hypomethylation, coupled with downregulation of DNMT and CMT genes occurs very early after pathogen inoculation. Additionally, the compatible interaction is characterized by a hypermethylation at 6hpi. A temporal delay is evident between the shifts in DNA methyltransferases gene expression in both compatible and incompatible interactions which in turn may be reflected in the global methylation percentage. Overall, we present the first evidence of an epigenetic regulation role in grapevine defense against P. viticola.
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Affiliation(s)
- Gonçalo Pereira
- Grapevine Pathogen Systems Lab, BioISI - Biosystems & Integrative Sciences Institute (BioISI), Faculty of Sciences, University of Lisbon, Lisboa, Portugal
| | - João Pereira
- Grapevine Pathogen Systems Lab, BioISI - Biosystems & Integrative Sciences Institute (BioISI), Faculty of Sciences, University of Lisbon, Lisboa, Portugal
| | - Rita B Santos
- Grapevine Pathogen Systems Lab, BioISI - Biosystems & Integrative Sciences Institute (BioISI), Faculty of Sciences, University of Lisbon, Lisboa, Portugal; Plant Biology Department, Faculty of Sciences, BioISI, University of Lisbon, Lisboa, Portugal.
| | - Andreia Figueiredo
- Grapevine Pathogen Systems Lab, BioISI - Biosystems & Integrative Sciences Institute (BioISI), Faculty of Sciences, University of Lisbon, Lisboa, Portugal; Plant Biology Department, Faculty of Sciences, BioISI, University of Lisbon, Lisboa, Portugal
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14
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Nair AU, Bhukya DPN, Sunkar R, Chavali S, Allu AD. Molecular basis of priming-induced acquired tolerance to multiple abiotic stresses in plants. JOURNAL OF EXPERIMENTAL BOTANY 2022; 73:3355-3371. [PMID: 35274680 DOI: 10.1093/jxb/erac089] [Citation(s) in RCA: 11] [Impact Index Per Article: 5.5] [Reference Citation Analysis] [Abstract] [Key Words] [MESH Headings] [Track Full Text] [Subscribe] [Scholar Register] [Received: 12/31/2021] [Accepted: 03/04/2022] [Indexed: 05/04/2023]
Abstract
The growth, survival, and productivity of plants are constantly challenged by diverse abiotic stresses. When plants are exposed to stress for the first time, they can capture molecular information and store it as a form of memory, which enables them to competently and rapidly respond to subsequent stress(es). This process is referred to as a priming-induced or acquired stress response. In this review, we discuss how (i) the storage and retrieval of the information from stress memory modulates plant physiological, cellular, and molecular processes in response to subsequent stress(es), (ii) the intensity, recurrence, and duration of priming stimuli influences the outcomes of the stress response, and (iii) the varying responses at different plant developmental stages. We highlight current understanding of the distinct and common molecular processes manifested at the epigenetic, (post-)transcriptional, and post-translational levels mediated by stress-associated molecules and metabolites, including phytohormones. We conclude by emphasizing how unravelling the molecular circuitry underlying diverse priming-stimuli-induced stress responses could propel the use of priming as a management practice for crop plants. This practice, in combination with precision agriculture, could aid in increasing yield quantity and quality to meet the rapidly rising demand for food.
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Affiliation(s)
- Akshay U Nair
- Department of Biology, Indian Institute of Science Education and Research (IISER) Tirupati, Tirupati 517507, Andhra Pradesh, India
| | - Durga Prasad Naik Bhukya
- Department of Biology, Indian Institute of Science Education and Research (IISER) Tirupati, Tirupati 517507, Andhra Pradesh, India
| | - Ramanjulu Sunkar
- Department of Biochemistry and Molecular Biology, Oklahoma State University, Stillwater, OK 74078, USA
| | - Sreenivas Chavali
- Department of Biology, Indian Institute of Science Education and Research (IISER) Tirupati, Tirupati 517507, Andhra Pradesh, India
| | - Annapurna Devi Allu
- Department of Biology, Indian Institute of Science Education and Research (IISER) Tirupati, Tirupati 517507, Andhra Pradesh, India
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15
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Catoni M, Alvarez-Venegas R, Worrall D, Holroyd G, Barraza A, Luna E, Ton J, Roberts MR. Long-Lasting Defence Priming by β-Aminobutyric Acid in Tomato Is Marked by Genome-Wide Changes in DNA Methylation. FRONTIERS IN PLANT SCIENCE 2022; 13:836326. [PMID: 35498717 PMCID: PMC9051511 DOI: 10.3389/fpls.2022.836326] [Citation(s) in RCA: 2] [Impact Index Per Article: 1.0] [Reference Citation Analysis] [Abstract] [Key Words] [Grants] [Track Full Text] [Subscribe] [Scholar Register] [Received: 12/15/2021] [Accepted: 03/23/2022] [Indexed: 05/26/2023]
Abstract
Exposure of plants to stress conditions or to certain chemical elicitors can establish a primed state, whereby responses to future stress encounters are enhanced. Stress priming can be long-lasting and likely involves epigenetic regulation of stress-responsive gene expression. However, the molecular events underlying priming are not well understood. Here, we characterise epigenetic changes in tomato plants primed for pathogen resistance by treatment with β-aminobutyric acid (BABA). We used whole genome bisulphite sequencing to construct tomato methylomes from control plants and plants treated with BABA at the seedling stage, and a parallel transcriptome analysis to identify genes primed for the response to inoculation by the fungal pathogen, Botrytis cinerea. Genomes of plants treated with BABA showed a significant reduction in global cytosine methylation, especially in CHH sequence contexts. Analysis of differentially methylated regions (DMRs) revealed that CHH DMRs were almost exclusively hypomethylated and were enriched in gene promoters and in DNA transposons located in the chromosome arms. Genes overlapping CHH DMRs were enriched for a small number of stress response-related gene ontology terms. In addition, there was significant enrichment of DMRs in the promoters of genes that are differentially expressed in response to infection with B. cinerea. However, the majority of genes that demonstrated priming did not contain DMRs, and nor was the overall distribution of methylated cytosines in primed genes altered by BABA treatment. Hence, we conclude that whilst BABA treatment of tomato seedlings results in characteristic changes in genome-wide DNA methylation, CHH hypomethylation appears only to target a minority of genes showing primed responses to pathogen infection. Instead, methylation may confer priming via in-trans regulation, acting at a distance from defence genes, and/or by targeting a smaller group of regulatory genes controlling stress responses.
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Affiliation(s)
- Marco Catoni
- School of Bioscience, University of Birmingham, Birmingham, United Kingdom
| | - Raul Alvarez-Venegas
- Departamento de Ingeniería Genética, CINVESTAV-IPN, Unidad Irapuato, Guanajuato, Mexico
| | - Dawn Worrall
- Lancaster Environment Centre, Lancaster University, Lancaster, United Kingdom
| | - Geoff Holroyd
- Lancaster Environment Centre, Lancaster University, Lancaster, United Kingdom
| | - Aarón Barraza
- CONACYT-CIBNOR, Centro de Investigaciones Biológicas del Noroeste, La Paz, Mexico
| | - Estrella Luna
- School of Bioscience, University of Birmingham, Birmingham, United Kingdom
| | - Jurriaan Ton
- School of Biosciences, Institute of Sustainable Food, University of Sheffield, Sheffield, United Kingdom
| | - Michael R. Roberts
- Lancaster Environment Centre, Lancaster University, Lancaster, United Kingdom
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16
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Sun K, Schipper D, Jacobsen E, Visser RGF, Govers F, Bouwmeester K, Bai Y. Silencing susceptibility genes in potato hinders primary infection of Phytophthora infestans at different stages. HORTICULTURE RESEARCH 2022; 9:uhab058. [PMID: 35043191 PMCID: PMC8968627 DOI: 10.1093/hr/uhab058] [Citation(s) in RCA: 2] [Impact Index Per Article: 1.0] [Reference Citation Analysis] [Abstract] [Track Full Text] [Subscribe] [Scholar Register] [Received: 01/30/2021] [Accepted: 11/12/2021] [Indexed: 06/01/2023]
Abstract
Most potato cultivars are susceptible to late blight disease caused by the oomycete pathogen Phytophthora infestans. A new source of resistance to prevent or diminish pathogen infection is found in the genetic loss of host susceptibility. Previously, we showed that RNAi-mediated silencing of the potato susceptibility (S) genes StDND1, StDMR1 and StDMR6 leads to increased late blight resistance. The mechanisms underlying this S-gene mediated resistance have thus far not been identified. In this study, we examined the infection process of P. infestans on StDND1-, StDMR1- and StDMR6-silenced potato lines. Microscopic analysis showed that penetration of P. infestans spores was hampered on StDND1-silenced plants. On StDMR1- and StDMR6-silenced plants, P. infestans infection was arrested at a primary infection stage by enhanced cell death responses. Histochemical staining revealed that StDMR1- and StDMR6-silenced plants display elevated ROS levels in cells at the infection sites. Resistance in StDND1-silenced plants, however, seems not to rely on a cell death response as ROS accumulation was found to be absent at most inoculated sites. Quantitative analysis of marker gene expression suggests that the increased resistance observed in StDND1- and StDMR6-silenced plants relies on an early onset of SA- and ET-mediated signalling pathways. Resistance mediated by silencing StDMR1 was found to be correlated with the early induction of SA-mediated signalling. These data provide evidence that different defense mechanisms are involved in late blight resistance mediated by functional impairment of different potato S-genes.
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Affiliation(s)
- Kaile Sun
- College of Horticulture, Henan Agricultural University, Nongye Road 63, 450002 Zhengzhou, Henan, China
- Plant Breeding, Wageningen University & Research, Droevendaalsesteeg 1, 6708 PB Wageningen, The Netherlands
| | - Danny Schipper
- Plant Breeding, Wageningen University & Research, Droevendaalsesteeg 1, 6708 PB Wageningen, The Netherlands
| | - Evert Jacobsen
- Plant Breeding, Wageningen University & Research, Droevendaalsesteeg 1, 6708 PB Wageningen, The Netherlands
| | - Richard G F Visser
- Plant Breeding, Wageningen University & Research, Droevendaalsesteeg 1, 6708 PB Wageningen, The Netherlands
| | - Francine Govers
- Laboratory of Phytopathology, Wageningen University & Research, Droevendaalsesteeg 1, 6708 PB, Wageningen, The Netherlands
| | - Klaas Bouwmeester
- Laboratory of Phytopathology, Wageningen University & Research, Droevendaalsesteeg 1, 6708 PB, Wageningen, The Netherlands
- Biosystematics Group, Wageningen University & Research, Droevendaalsesteeg 1, 6708 PB Wageningen, The Netherlands
| | - Yuling Bai
- Plant Breeding, Wageningen University & Research, Droevendaalsesteeg 1, 6708 PB Wageningen, The Netherlands
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17
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Huang CY, Jin H. Coordinated Epigenetic Regulation in Plants: A Potent Managerial Tool to Conquer Biotic Stress. FRONTIERS IN PLANT SCIENCE 2022; 12:795274. [PMID: 35046981 PMCID: PMC8762163 DOI: 10.3389/fpls.2021.795274] [Citation(s) in RCA: 13] [Impact Index Per Article: 6.5] [Reference Citation Analysis] [Abstract] [Key Words] [Grants] [Track Full Text] [Subscribe] [Scholar Register] [Received: 10/14/2021] [Accepted: 11/29/2021] [Indexed: 05/10/2023]
Abstract
Plants have evolved variable phenotypic plasticity to counteract different pathogens and pests during immobile life. Microbial infection invokes multiple layers of host immune responses, and plant gene expression is swiftly and precisely reprogramed at both the transcriptional level and post-transcriptional level. Recently, the importance of epigenetic regulation in response to biotic stresses has been recognized. Changes in DNA methylation, histone modification, and chromatin structures have been observed after microbial infection. In addition, epigenetic modifications may be preserved as transgenerational memories to allow the progeny to better adapt to similar environments. Epigenetic regulation involves various regulatory components, including non-coding small RNAs, DNA methylation, histone modification, and chromatin remodelers. The crosstalk between these components allows precise fine-tuning of gene expression, giving plants the capability to fight infections and tolerant drastic environmental changes in nature. Fully unraveling epigenetic regulatory mechanisms could aid in the development of more efficient and eco-friendly strategies for crop protection in agricultural systems. In this review, we discuss the recent advances on the roles of epigenetic regulation in plant biotic stress responses.
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Affiliation(s)
| | - Hailing Jin
- Department of Microbiology and Plant Pathology, Institute for Integrative Genome Biology, University of California, Riverside, Riverside, CA, United States
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18
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Anastasiadi D, Venney CJ, Bernatchez L, Wellenreuther M. Epigenetic inheritance and reproductive mode in plants and animals. Trends Ecol Evol 2021; 36:1124-1140. [PMID: 34489118 DOI: 10.1016/j.tree.2021.08.006] [Citation(s) in RCA: 50] [Impact Index Per Article: 16.7] [Reference Citation Analysis] [Abstract] [Key Words] [MESH Headings] [Track Full Text] [Journal Information] [Subscribe] [Scholar Register] [Received: 03/30/2021] [Revised: 08/05/2021] [Accepted: 08/09/2021] [Indexed: 12/17/2022]
Abstract
Epigenetic inheritance is another piece of the puzzle of nongenetic inheritance, although the prevalence, sources, persistence, and phenotypic consequences of heritable epigenetic marks across taxa remain unclear. We systematically reviewed over 500 studies from the past 5 years to identify trends in the frequency of epigenetic inheritance due to differences in reproductive mode and germline development. Genetic, intrinsic (e.g., disease), and extrinsic (e.g., environmental) factors were identified as sources of epigenetic inheritance, with impacts on phenotype and adaptation depending on environmental predictability. Our review shows that multigenerational persistence of epigenomic patterns is common in both plants and animals, but also highlights many knowledge gaps that remain to be filled. We provide a framework to guide future studies towards understanding the generational persistence and eco-evolutionary significance of epigenomic patterns.
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Affiliation(s)
- Dafni Anastasiadi
- The New Zealand Institute for Plant and Food Research Ltd, Nelson Research Centre, 293 Akersten St, Nelson 7010, New Zealand
| | - Clare J Venney
- Institut de Biologie Intégrative des Systèmes (IBIS), Département de Biologie, Université Laval, 1030 Avenue de la Médecine, G1V 0A6, Québec, QC, Canada
| | - Louis Bernatchez
- Institut de Biologie Intégrative des Systèmes (IBIS), Département de Biologie, Université Laval, 1030 Avenue de la Médecine, G1V 0A6, Québec, QC, Canada
| | - Maren Wellenreuther
- The New Zealand Institute for Plant and Food Research Ltd, Nelson Research Centre, 293 Akersten St, Nelson 7010, New Zealand; School of Biological Sciences, The University of Auckland, 3A Symonds St, Auckland 1010, New Zealand.
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19
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Rodrigues da Silva A, da Costa Silva D, Dos Santos Pinto KN, Santos Filho HP, Coelho Filho MA, Dos Santos Soares Filho W, Ferreira CF, da Silva Gesteira A. Epigenetic responses to Phytophthora citrophthora gummosis in citrus. PLANT SCIENCE : AN INTERNATIONAL JOURNAL OF EXPERIMENTAL PLANT BIOLOGY 2021; 313:111082. [PMID: 34763867 DOI: 10.1016/j.plantsci.2021.111082] [Citation(s) in RCA: 2] [Impact Index Per Article: 0.7] [Reference Citation Analysis] [Abstract] [Key Words] [MESH Headings] [Track Full Text] [Subscribe] [Scholar Register] [Received: 08/16/2021] [Revised: 09/28/2021] [Accepted: 10/02/2021] [Indexed: 06/13/2023]
Abstract
Studies show that DNA methylation is associated with plant immunity but little is known as to how this epigenetic mechanism assists plants in adjusting their responses to biotic stress, especially when interacting with an hemibiotrophic pathogen such as citrus Phytophthora. The aim of the present study was to assess the effects of scion-rootstock interaction on plant resistance to P. citrophthora infection and DNA methylation patterns in 'Pera' sweet orange and 'Tahiti' acid lime grafted onto 'Rangpur' lime and 'Tropical' sunki rootstocks reinoculated with P. citrophthora. Results showed that reinoculated plants of the 'Pera' sweet orange/'Rangpur' lime and 'Tahiti' acid lime/'Tropical' sunki combinations with more and less sensitive varieties to Phytophthora, presented smaller stem lesions and increased frequency of full methylation and hemimethylation rates, compared to inoculated plants. In contrast, 'Tahiti' acid lime/'Rangpur' lime, two highly sensitive varieties, and 'Pera'/'Tropical' sunki, two much less sensitive varieties, showed high increases in the frequency of hemimethylation and non-methylation levels. Results suggest that in citrus, both the scion-rootstock interaction and DNA methylation affect the response to P. citrophthora infection. Reinoculated plants, depending on the combination, showed changes in intracellular hyphae growth through the formation of sets of fibers and crystal accumulation in the periderm, cortex, and phloem. In addition, starch grain concentration was higher in reinoculated plants in comparison to inoculated plants. These findings support the assumption that DNA methylation is a plant defense mechanism and therefore may be exploited to improve the response of plants to the gummosis of P. citrophthora in citrus.
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Affiliation(s)
- Adielle Rodrigues da Silva
- Departamento de Biologia, Centro de Genética e Biologia Molecular, Universidade Estadual de Santa Cruz, Ilhéus, Bahia, 45662-900, Brazil
| | - Delmira da Costa Silva
- Departamento de Biologia, Centro de Genética e Biologia Molecular, Universidade Estadual de Santa Cruz, Ilhéus, Bahia, 45662-900, Brazil
| | | | | | | | | | | | - Abelmon da Silva Gesteira
- Departamento de Biologia, Centro de Genética e Biologia Molecular, Universidade Estadual de Santa Cruz, Ilhéus, Bahia, 45662-900, Brazil; Embrapa Mandioca e Fruticultura, Cruz das Almas, Bahia, 44380-000, Brazil.
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20
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The Resistance Responses of Potato Plants to Potato Virus Y Are Associated with an Increased Cellular Methionine Content and an Altered SAM:SAH Methylation Index. Viruses 2021; 13:v13060955. [PMID: 34064103 PMCID: PMC8224460 DOI: 10.3390/v13060955] [Citation(s) in RCA: 5] [Impact Index Per Article: 1.7] [Reference Citation Analysis] [Abstract] [Key Words] [Track Full Text] [Download PDF] [Figures] [Journal Information] [Subscribe] [Scholar Register] [Received: 04/27/2021] [Revised: 05/14/2021] [Accepted: 05/19/2021] [Indexed: 11/30/2022] Open
Abstract
Plant-virus interactions are frequently influenced by elevated temperature, which often increases susceptibility to a virus, a scenario described for potato cultivar Chicago infected with potato virus Y (PVY). In contrast, other potato cultivars such as Gala may have similar resistances to PVY at both normal (22 °C) and high (28 °C) temperatures. To elucidate the mechanisms of temperature-independent antivirus resistance in potato, we analysed responses of Gala plants to PVY at different temperatures using proteomic, transcriptional and metabolic approaches. Here we show that in Gala, PVY infection generally upregulates the accumulation of major enzymes associated with the methionine cycle (MTC) independently of temperature, but that temperature (22 °C or 28 °C) may finely regulate what classes accumulate. The different sets of MTC-related enzymes that are up-regulated at 22 °C or 28 °C likely account for the significantly increased accumulation of S-adenosyl methionine (SAM), a key component of MTC which acts as a universal methyl donor in methylation reactions. In contrast to this, we found that in cultivar Chicago, SAM levels were significantly reduced which correlated with the enhanced susceptibility to PVY at high temperature. Collectively, these data suggest that MTC and its major transmethylation function determines resistance or susceptibility to PVY.
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21
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Najdabbasi N, Mirmajlessi SM, Dewitte K, Ameye M, Mänd M, Audenaert K, Landschoot S, Haesaert G. Green Leaf Volatile Confers Management of Late Blight Disease: A Green Vaccination in Potato. J Fungi (Basel) 2021; 7:jof7040312. [PMID: 33919547 PMCID: PMC8072593 DOI: 10.3390/jof7040312] [Citation(s) in RCA: 6] [Impact Index Per Article: 2.0] [Reference Citation Analysis] [Abstract] [Key Words] [Track Full Text] [Download PDF] [Figures] [Journal Information] [Subscribe] [Scholar Register] [Received: 03/16/2021] [Revised: 04/15/2021] [Accepted: 04/16/2021] [Indexed: 11/16/2022] Open
Abstract
Yield losses of crops due to plant pathogens are a major threat in all agricultural systems. In view of environmental issues and legislative limitations for chemical crop protection products, the need to design new environmentally friendly disease management strategies has gained interest. Despite the unique capability of green leaf volatiles (GLVs) to suppress a broad spectrum of plant pathogens, their capacity to control the potato late-blight-causing agent Phytophthora infestans has not been well studied. This study addresses the potential role of the GLV Z-3-hexenyl acetate (Z-3-HAC) in decreasing the severity of late blight and the underlying gene-based evidence leading to this effect. Nine-week-old potato plants (Solanum tuberosum L.) were exposed to Z-3-HAC before they were inoculated with P. infestans genotypes at different time points. These pre-exposed potato plants exhibited slower disease development after infection with the highly pathogenic genotype of P. infestans (EU-13-A2) over time. Qualitative assessment showed that the exposed, infected plants possessed significantly lower sporulation intensity and disease severity compared to the control plants. Hypersensitive response (HR)-like symptoms were observed on the treated leaves when inoculated with different pathogen genotypes. No HR-like lesions were detected on the untreated leaves after infection. It was shown that the transcript levels of several defense-related genes, especially those that are involved in reactive oxygen species (ROS) production pathways were significantly expressed in plants at 48 and 72 h postexposure to the Z-3-HAC. The current work provides evidence on the role of Z-3-HAC in the increased protection of potato plants against late blight through plant immunity and offers new opportunities for the sustainable control of potato diseases.
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Affiliation(s)
- Neda Najdabbasi
- Department of Plants and Crops, Valentin Vaerwyckweg 1, Faculty of Bioscience Engineering, Ghent University, 9000 Ghent, Belgium; (S.M.M.); (K.D.); (M.A.); (K.A.); (S.L.); (G.H.)
- Institute of Agricultural and Environmental Sciences, Department of Plant Health, Estonian University of Life Sciences, Kreutzwaldi 5, 51014 Tartu, Estonia;
- Correspondence:
| | - Seyed Mahyar Mirmajlessi
- Department of Plants and Crops, Valentin Vaerwyckweg 1, Faculty of Bioscience Engineering, Ghent University, 9000 Ghent, Belgium; (S.M.M.); (K.D.); (M.A.); (K.A.); (S.L.); (G.H.)
| | - Kevin Dewitte
- Department of Plants and Crops, Valentin Vaerwyckweg 1, Faculty of Bioscience Engineering, Ghent University, 9000 Ghent, Belgium; (S.M.M.); (K.D.); (M.A.); (K.A.); (S.L.); (G.H.)
| | - Maarten Ameye
- Department of Plants and Crops, Valentin Vaerwyckweg 1, Faculty of Bioscience Engineering, Ghent University, 9000 Ghent, Belgium; (S.M.M.); (K.D.); (M.A.); (K.A.); (S.L.); (G.H.)
| | - Marika Mänd
- Institute of Agricultural and Environmental Sciences, Department of Plant Health, Estonian University of Life Sciences, Kreutzwaldi 5, 51014 Tartu, Estonia;
| | - Kris Audenaert
- Department of Plants and Crops, Valentin Vaerwyckweg 1, Faculty of Bioscience Engineering, Ghent University, 9000 Ghent, Belgium; (S.M.M.); (K.D.); (M.A.); (K.A.); (S.L.); (G.H.)
| | - Sofie Landschoot
- Department of Plants and Crops, Valentin Vaerwyckweg 1, Faculty of Bioscience Engineering, Ghent University, 9000 Ghent, Belgium; (S.M.M.); (K.D.); (M.A.); (K.A.); (S.L.); (G.H.)
| | - Geert Haesaert
- Department of Plants and Crops, Valentin Vaerwyckweg 1, Faculty of Bioscience Engineering, Ghent University, 9000 Ghent, Belgium; (S.M.M.); (K.D.); (M.A.); (K.A.); (S.L.); (G.H.)
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22
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Multifaceted Chromatin Structure and Transcription Changes in Plant Stress Response. Int J Mol Sci 2021; 22:ijms22042013. [PMID: 33670556 PMCID: PMC7922328 DOI: 10.3390/ijms22042013] [Citation(s) in RCA: 37] [Impact Index Per Article: 12.3] [Reference Citation Analysis] [Abstract] [Key Words] [Download PDF] [Figures] [Journal Information] [Subscribe] [Scholar Register] [Received: 01/29/2021] [Revised: 02/15/2021] [Accepted: 02/16/2021] [Indexed: 01/06/2023] Open
Abstract
Sessile plants are exposed throughout their existence to environmental abiotic and biotic stress factors, such as cold, heat, salinity, drought, dehydration, submergence, waterlogging, and pathogen infection. Chromatin organization affects genome stability, and its dynamics are crucial in plant stress responses. Chromatin dynamics are epigenetically regulated and are required for stress-induced transcriptional regulation or reprogramming. Epigenetic regulators facilitate the phenotypic plasticity of development and the survival and reproduction of plants in unfavorable environments, and they are highly diversified, including histone and DNA modifiers, histone variants, chromatin remodelers, and regulatory non-coding RNAs. They contribute to chromatin modifications, remodeling and dynamics, and constitute a multilayered and multifaceted circuitry for sophisticated and robust epigenetic regulation of plant stress responses. However, this complicated epigenetic regulatory circuitry creates challenges for elucidating the common or differential roles of chromatin modifications for transcriptional regulation or reprogramming in different plant stress responses. Particularly, interacting chromatin modifications and heritable stress memories are difficult to identify in the aspect of chromatin-based epigenetic regulation of transcriptional reprogramming and memory. Therefore, this review discusses the recent updates from the three perspectives—stress specificity or dependence of transcriptional reprogramming, the interplay of chromatin modifications, and transcriptional stress memory in plants. This helps solidify our knowledge on chromatin-based transcriptional reprogramming for plant stress response and memory.
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Whole-Genome DNA Methylation Analysis in Hydrogen Peroxide Overproducing Transgenic Tobacco Resistant to Biotic and Abiotic Stresses. PLANTS 2021; 10:plants10010178. [PMID: 33477999 PMCID: PMC7835756 DOI: 10.3390/plants10010178] [Citation(s) in RCA: 6] [Impact Index Per Article: 2.0] [Reference Citation Analysis] [Abstract] [Key Words] [Track Full Text] [Download PDF] [Figures] [Subscribe] [Scholar Register] [Received: 11/12/2020] [Revised: 12/21/2020] [Accepted: 12/30/2020] [Indexed: 01/09/2023]
Abstract
Epigenetic regulation is a key component of stress responses, acclimatization and adaptation processes in plants. DNA methylation is a stable mark plausible for the inheritance of epigenetic traits, such that it is a potential scheme for plant breeding. However, the effect of modulators of stress responses, as hydrogen peroxide (H2O2), in the methylome status has not been elucidated. A transgenic tobacco model to the CchGLP gene displayed high H2O2 endogen levels correlated with biotic and abiotic stresses resistance. The present study aimed to determine the DNA methylation status changes in the transgenic model to obtain more information about the molecular mechanism involved in resistance phenotypes. The Whole-genome bisulfite sequencing analysis revealed a minimal impact of overall levels and distribution of methylation. A total of 9432 differential methylated sites were identified in distinct genome regions, most of them in CHG context, with a trend to hypomethylation. Of these, 1117 sites corresponded to genes, from which 83 were also differentially expressed in the plants. Several genes were associated with respiration, energy, and calcium signaling. The data obtained highlighted the relevance of the H2O2 in the homeostasis of the system in stress conditions, affecting at methylation level and suggesting an association of the H2O2 in the physiological adaptation to stress functional linkages may be regulated in part by DNA methylation.
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Fesenko I, Spechenkova N, Mamaeva A, Makhotenko AV, Love AJ, Kalinina NO, Taliansky M. Role of the methionine cycle in the temperature-sensitive responses of potato plants to potato virus Y. MOLECULAR PLANT PATHOLOGY 2021; 22:77-91. [PMID: 33146443 PMCID: PMC7749756 DOI: 10.1111/mpp.13009] [Citation(s) in RCA: 17] [Impact Index Per Article: 5.7] [Reference Citation Analysis] [Abstract] [Key Words] [MESH Headings] [Track Full Text] [Subscribe] [Scholar Register] [Received: 08/22/2020] [Revised: 09/28/2020] [Accepted: 09/29/2020] [Indexed: 05/22/2023]
Abstract
Plant-virus interactions are greatly influenced by environmental factors such as temperatures. In virus-infected plants, enhanced temperature is frequently associated with more severe symptoms and higher virus content. However, the mechanisms involved in such regulatory effects remain largely uncharacterized. To provide more insight into the mechanisms whereby temperature regulates plant-virus interactions, we analysed changes in the proteome of potato cv. Chicago plants infected with potato virus Y (PVY) at normal (22 °C) and elevated temperature (28 °C), which is known to significantly increase plant susceptibility to the virus. One of the most intriguing findings is that the main enzymes of the methionine cycle (MTC) were down-regulated at the higher but not at normal temperatures. With good agreement, we found that higher temperature conditions triggered consistent and concerted changes in the level of MTC metabolites, suggesting that the enhanced susceptibility of potato plants to PVY at 28 °C may at least be partially orchestrated by the down-regulation of MTC enzymes and concomitant cycle perturbation. In line with this, foliar treatment of these plants with methionine restored accumulation of MTC metabolites and subverted the susceptibility to PVY at elevated temperature. These data are discussed in the context of the major function of the MTC in transmethylation processes.
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Affiliation(s)
- Igor Fesenko
- Shemyakin‐Ovchinnikov Institute of Bioorganic Chemistry of the Russian Academy of SciencesMoscowRussian Federation
| | - Nadezhda Spechenkova
- Shemyakin‐Ovchinnikov Institute of Bioorganic Chemistry of the Russian Academy of SciencesMoscowRussian Federation
| | - Anna Mamaeva
- Shemyakin‐Ovchinnikov Institute of Bioorganic Chemistry of the Russian Academy of SciencesMoscowRussian Federation
| | - Antonida V. Makhotenko
- Shemyakin‐Ovchinnikov Institute of Bioorganic Chemistry of the Russian Academy of SciencesMoscowRussian Federation
- Belozersky Institute of Physico‐chemical BiologyLomonosov Moscow State UniversityMoscowRussian Federation
| | | | - Natalia O. Kalinina
- Shemyakin‐Ovchinnikov Institute of Bioorganic Chemistry of the Russian Academy of SciencesMoscowRussian Federation
- Belozersky Institute of Physico‐chemical BiologyLomonosov Moscow State UniversityMoscowRussian Federation
| | - Michael Taliansky
- Shemyakin‐Ovchinnikov Institute of Bioorganic Chemistry of the Russian Academy of SciencesMoscowRussian Federation
- The James Hutton InstituteInvergowrie, DundeeUK
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25
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Epigenetic Mechanisms of Plant Adaptation to Biotic and Abiotic Stresses. Int J Mol Sci 2020; 21:ijms21207457. [PMID: 33050358 PMCID: PMC7589735 DOI: 10.3390/ijms21207457] [Citation(s) in RCA: 73] [Impact Index Per Article: 18.3] [Reference Citation Analysis] [Abstract] [Key Words] [Track Full Text] [Download PDF] [Figures] [Journal Information] [Subscribe] [Scholar Register] [Received: 09/02/2020] [Revised: 09/27/2020] [Accepted: 10/07/2020] [Indexed: 01/17/2023] Open
Abstract
Unlike animals, plants are immobile and could not actively escape the effects of aggressive environmental factors, such as pathogenic microorganisms, insect pests, parasitic plants, extreme temperatures, drought, and many others. To counteract these unfavorable encounters, plants have evolved very high phenotypic plasticity. In a rapidly changing environment, adaptive phenotypic changes often occur in time frames that are too short for the natural selection of adaptive mutations. Probably, some kind of epigenetic variability underlines environmental adaptation in these cases. Indeed, isogenic plants often have quite variable phenotypes in different habitats. There are examples of successful “invasions” of relatively small and genetically homogenous plant populations into entirely new habitats. The unique capability of quick environmental adaptation appears to be due to a high tendency to transmit epigenetic changes between plant generations. Multiple studies show that epigenetic memory serves as a mechanism of plant adaptation to a rapidly changing environment and, in particular, to aggressive biotic and abiotic stresses. In wild nature, this mechanism underlies, to a very significant extent, plant capability to live in different habitats and endure drastic environmental changes. In agriculture, a deep understanding of this mechanism could serve to elaborate more effective and safe approaches to plant protection.
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26
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Tarkowski ŁP, Signorelli S, Höfte M. γ-Aminobutyric acid and related amino acids in plant immune responses: Emerging mechanisms of action. PLANT, CELL & ENVIRONMENT 2020; 43:1103-1116. [PMID: 31997381 DOI: 10.1111/pce.13734] [Citation(s) in RCA: 57] [Impact Index Per Article: 14.3] [Reference Citation Analysis] [Abstract] [Key Words] [MESH Headings] [Track Full Text] [Subscribe] [Scholar Register] [Received: 11/17/2019] [Revised: 01/17/2020] [Accepted: 01/22/2020] [Indexed: 06/10/2023]
Abstract
The entanglement between primary metabolism regulation and stress responses is a puzzling and fascinating theme in plant sciences. Among the major metabolites found in plants, γ-aminobutyric acid (GABA) fulfils important roles in connecting C and N metabolic fluxes through the GABA shunt. Activation of GABA metabolism is known since long to occur in plant tissues following biotic stresses, where GABA appears to have substantially different modes of action towards different categories of pathogens and pests. While it can harm insects thanks to its inhibitory effect on the neuronal transmission, its capacity to modulate the hypersensitive response in attacked host cells was proven to be crucial for host defences in several pathosystems. In this review, we discuss how plants can employ GABA's versatility to effectively deal with all the major biotic stressors, and how GABA can shape plant immune responses against pathogens by modulating reactive oxygen species balance in invaded plant tissues. Finally, we discuss the connections between GABA and other stress-related amino acids such as BABA (β-aminobutyric acid), glutamate and proline.
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Affiliation(s)
- Łukasz P Tarkowski
- Seed Metabolism and Stress Team, INRAE Angers, UMR1345 Institut de Recherche en Horticulture et Semences, Bâtiment A, Beaucouzé cedex, France
| | - Santiago Signorelli
- Laboratorio de Bioquímica, Departamento de Biología Vegetal, Facultad de Agronomía, Universidad de la República, Sayago CP, Montevideo, Uruguay
- The School of Molecular Sciences, Faculty of Science, The University of Western Australia, Crawley CP, WA, Australia
- Australian Research Council Centre of Excellence in Plant Energy Biology, University of Western Australia, Crawley CP, WA, Australia
| | - Monica Höfte
- Laboratory of Phytopathology, Department of Plants and Crops, Faculty of Bioscience Engineering, Ghent University, Ghent, Belgium
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27
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Ma XH, Xu JY, Han D, Huang WX, Dang BJ, Jia W, Xu ZC. Combination of β-Aminobutyric Acid and Ca 2+ Alleviates Chilling Stress in Tobacco ( Nicotiana tabacum L.). FRONTIERS IN PLANT SCIENCE 2020; 11:556. [PMID: 32477386 PMCID: PMC7237732 DOI: 10.3389/fpls.2020.00556] [Citation(s) in RCA: 8] [Impact Index Per Article: 2.0] [Reference Citation Analysis] [Abstract] [Key Words] [Track Full Text] [Subscribe] [Scholar Register] [Received: 01/13/2020] [Accepted: 04/14/2020] [Indexed: 05/08/2023]
Abstract
Chilling is a major abiotic factor limiting the growth, development, and productivity of plants. β-aminobutyric acid (BABA), a new environmentally friendly agent, is widely used to induce plant resistance to biotic and abiotic stress. Calcium, as a signaling substance, participates in various physiological activities in cells and plays a positive role in plant defense against cold conditions. In this study, we used tobacco as a model plant to determine whether BABA could alleviate chilling stress and further to explore the relationship between BABA and Ca2+. The results showed that 0.2 mM BABA significantly reduced the damage to tobacco seedlings from chilling stress, as evidenced by an increase in photosynthetic pigments, the maintenance of cell structure, and upregulated expression of NtLDC1, NtERD10B, and NtERD10D. Furthermore, 0.2 mM BABA combined with 10 mM Ca2+ increased the fresh and dry weights of both roots and shoots markedly. Compared to that with single BABA treatment, adding Ca2+ reduced cold injury to the plant cell membrane, decreased ROS production, and increased antioxidant enzyme activities and antioxidant contents. The combination of BABA and Ca2+ also improved abscisic acid and auxin contents in tobacco seedlings under chilling stress, whereas ethylene glycol-bis (β-aminoethylether)-N,N,N',N'-tetraacetic acid (EGTA) reversed the effects of BABA. These findings suggested that BABA enhances the cold tolerance of tobacco and is closely related to the state of Ca2+ signaling.
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Affiliation(s)
- Xiao-Han Ma
- College of Tobacco Science, Henan Agricultural University, Zhengzhou, China
| | - Jia-Yang Xu
- College of Agronomy and Biotechnology, China Agricultural University, Beijing, China
| | - Dan Han
- College of Tobacco Science, Henan Agricultural University, Zhengzhou, China
| | - Wu-Xing Huang
- College of Tobacco Science, Henan Agricultural University, Zhengzhou, China
| | - Bing-Jun Dang
- College of Tobacco Science, Henan Agricultural University, Zhengzhou, China
| | - Wei Jia
- College of Tobacco Science, Henan Agricultural University, Zhengzhou, China
- *Correspondence: Wei Jia,
| | - Zi-Cheng Xu
- College of Tobacco Science, Henan Agricultural University, Zhengzhou, China
- Zi-Cheng Xu,
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