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Lu X, Zhang F, Zhang C, Li G, Du Y, Zhao C, Zhao W, Gao F, Fu L, Liu X, Liu J, Wang X. TaTPS11 enhances wheat cold resistance by regulating source-sink factor. PLANT PHYSIOLOGY AND BIOCHEMISTRY : PPB 2024; 211:108695. [PMID: 38744088 DOI: 10.1016/j.plaphy.2024.108695] [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: 01/30/2024] [Revised: 04/23/2024] [Accepted: 05/01/2024] [Indexed: 05/16/2024]
Abstract
The presence of sugar in plant tissue can lead to an increase in the osmotic pressure within cells, a decrease in the freezing point of plants, and protection against ice crystal damage to the tissue. Trehalose is closely related to sucrose, which comprises the largest proportion of sugar and has become a hot topic of research in recent years. Our previous studies have confirmed that a key trehalose synthesis gene, TaTPS11, from the cold-resistant winter wheat DM1, could enhance the cold resistance of plants by increasing sugar content. However, the underlying mechanism behind this phenomenon remains unclear. In this study, we cloned TaTPS11-6D, edited TaTPS11-6D using CRISPR/Cas9 technology and transformed 'Fielder' to obtain T2 generation plants. We screened out OE3-3 and OE8-7 lines with significantly higher cold resistance than that of 'Fielder' and Cri 4-3 edited lines with significantly lower cold resistance than that of 'Fielder'. Low temperature storage limiting factors were measured for OE3-3, OE8-7 and Cri 4-3 treated at different temperatures.The results showed that TaTPS11-6D significantly increased the content of sugar in plants and the transfer of sugar from source to storage organs under cold conditions. The TaTPS11-6D significantly increased the levels of salicylic, jasmonic, and abscisic acids while also significantly decreasing the level of gibberellic acid. Our research improves the model of low temperature storage capacity limiting factor.
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Affiliation(s)
- Xiaoguang Lu
- College of Agriculture, Northeast Agricultural University, Harbin, 150030, China
| | - Fuzhi Zhang
- Harbin Institute of Information Engineering, Harbin, 150431, China
| | - Chenglong Zhang
- College of Agriculture, Northeast Agricultural University, Harbin, 150030, China
| | - Guorui Li
- College of Agriculture, Northeast Agricultural University, Harbin, 150030, China
| | - Yuchen Du
- College of Agriculture, Northeast Agricultural University, Harbin, 150030, China
| | - Cicong Zhao
- College of Agriculture, Northeast Agricultural University, Harbin, 150030, China
| | - Wei Zhao
- College of Agriculture, Northeast Agricultural University, Harbin, 150030, China
| | - Fengmei Gao
- Crop Resources Institute, Heilongjiang Academy of Agricultural Sciences, Harbin, 150086, China
| | - Lianshuang Fu
- College of Agriculture, Northeast Agricultural University, Harbin, 150030, China
| | - Xin Liu
- College of Agriculture, Northeast Agricultural University, Harbin, 150030, China
| | - Jun Liu
- National Key Facility for Crop Resources and Genetic Improvement, Institute of Crop Science, Chinese Academy of Agricultural Sciences, Beijing, 100081, China
| | - Xiaonan Wang
- College of Agriculture, Northeast Agricultural University, Harbin, 150030, China.
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2
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Gusain S, Joshi S, Joshi R. Sensing, signalling, and regulatory mechanism of cold-stress tolerance in plants. PLANT PHYSIOLOGY AND BIOCHEMISTRY : PPB 2023; 197:107646. [PMID: 36958153 DOI: 10.1016/j.plaphy.2023.107646] [Citation(s) in RCA: 7] [Impact Index Per Article: 7.0] [Reference Citation Analysis] [Abstract] [Key Words] [MESH Headings] [Track Full Text] [Subscribe] [Scholar Register] [Received: 12/09/2022] [Revised: 03/02/2023] [Accepted: 03/14/2023] [Indexed: 06/18/2023]
Abstract
Cold stress is a crucial environmental factor influencing growth and distribution and possessing yield penalties. To survive in the cold, plants have evolved to use a range of molecular mechanisms. The major regulatory pathway under low-temperature stress involves the conversion of external stimulus into an internal signal that triggers a defence mechanism through a transcriptional cascade to counter stress. Cold-receptive mechanism and cell signalling involve cold-related signalling molecules, sensors, calcium signals, MAPK cascade, and ICE-COR-CBF pathway that modulate signal transduction in plants. Of these, the ICE-CBF-COR signalling is considered to be an important regulator for cold-stress acclimation. ICE stimulates acclimation to cold and plays a pivotal role in regulating CBF-mediated cold-tolerance mechanism. Thus, CBFs regulate COR gene expression by binding to its promoter. Similarly, the C-repeat binding factor-dependent signalling cascade also stimulates osmotic stress-regulatory gene expression. This review elucidates the regulatory mechanism underlying cold stress, i.e., signal molecules, cold receptors, signal-transduction pathways, metabolic regulation under cold stress, and crosstalk of regulatory pathways with other abiotic stresses in plants. The results may pave the way for crop improvement in low-temperature environments.
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Affiliation(s)
- Suman Gusain
- Division of Biotechnology, CSIR-Institute of Himalayan Bioresource Technology, Palampur, 176061, India; Academy of Scientific and Innovative Research (AcSIR), CSIR-HRDC Campus, Ghaziabad, 201002, India
| | - Shubham Joshi
- Division of Biotechnology, CSIR-Institute of Himalayan Bioresource Technology, Palampur, 176061, India; Academy of Scientific and Innovative Research (AcSIR), CSIR-HRDC Campus, Ghaziabad, 201002, India
| | - Rohit Joshi
- Division of Biotechnology, CSIR-Institute of Himalayan Bioresource Technology, Palampur, 176061, India; Academy of Scientific and Innovative Research (AcSIR), CSIR-HRDC Campus, Ghaziabad, 201002, India.
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3
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Vrábl D, Nezval J, Pech R, Volná A, Mašková P, Pleva J, Kuzniciusová N, Provazová M, Štroch M, Špunda V. Light Drives and Temperature Modulates: Variation of Phenolic Compounds Profile in Relation to Photosynthesis in Spring Barley. Int J Mol Sci 2023; 24:ijms24032427. [PMID: 36768753 PMCID: PMC9916737 DOI: 10.3390/ijms24032427] [Citation(s) in RCA: 0] [Impact Index Per Article: 0] [Reference Citation Analysis] [Abstract] [Key Words] [MESH Headings] [Track Full Text] [Figures] [Journal Information] [Subscribe] [Scholar Register] [Received: 11/16/2022] [Revised: 01/12/2023] [Accepted: 01/12/2023] [Indexed: 01/28/2023] Open
Abstract
Accumulation and metabolic profile of phenolic compounds (PheCs; serving as UV-screening pigments and antioxidants) as well as carbon fixation rate (An) and plant growth are sensitive to irradiance and temperature. Since these factors are naturally co-acting in the environment, it is worthy to study the combined effects of these environmental factors to assess their possible physiological consequences. We investigated how low and high irradiance in combination with different temperatures modify the metabolic profile of PheCs and expression of genes involved in the antioxidative enzyme and PheCs biosynthesis, in relation to photosynthetic activity and availability of non-structural carbohydrates (NSC) in spring barley seedlings. High irradiance positively affected An, NSC, PheCs content, and antioxidant activity (AOX). High temperature led to decreased An, NSC, and increased dark respiration, whilst low temperature was accompanied by reduction of UV-A shielding but increase of PheCs content and AOX. Besides that, irradiance and temperature caused changes in the metabolic profile of PheCs, particularly alteration in homoorientin/isovitexin derivatives ratio, possibly related to demands on AOX-based protection. Moreover, we also observed changes in the ratio of sinapoyl-/feruloyl- acylated flavonoids, the function of which is not yet known. The data also strongly suggested that the NSC content may support the PheCs production.
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Affiliation(s)
- Daniel Vrábl
- Department of Physics, Faculty of Science, University of Ostrava, 710 00 Ostrava, Czech Republic
| | - Jakub Nezval
- Department of Physics, Faculty of Science, University of Ostrava, 710 00 Ostrava, Czech Republic
- Correspondence: (J.N.); (V.Š.)
| | - Radomír Pech
- Department of Physics, Faculty of Science, University of Ostrava, 710 00 Ostrava, Czech Republic
| | - Adriana Volná
- Department of Physics, Faculty of Science, University of Ostrava, 710 00 Ostrava, Czech Republic
| | - Petra Mašková
- Department of Experimental Plant Biology, Faculty of Science, Charles University, 128 00 Prague, Czech Republic
| | - Jan Pleva
- Department of Physics, Faculty of Science, University of Ostrava, 710 00 Ostrava, Czech Republic
| | - Nikola Kuzniciusová
- Department of Physics, Faculty of Science, University of Ostrava, 710 00 Ostrava, Czech Republic
| | - Michaela Provazová
- Department of Physics, Faculty of Science, University of Ostrava, 710 00 Ostrava, Czech Republic
| | - Michal Štroch
- Department of Physics, Faculty of Science, University of Ostrava, 710 00 Ostrava, Czech Republic
- Global Change Research Institute, Czech Academy of Sciences, 603 00 Brno, Czech Republic
| | - Vladimír Špunda
- Department of Physics, Faculty of Science, University of Ostrava, 710 00 Ostrava, Czech Republic
- Global Change Research Institute, Czech Academy of Sciences, 603 00 Brno, Czech Republic
- Correspondence: (J.N.); (V.Š.)
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4
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Kutsuno T, Chowhan S, Kotake T, Takahashi D. Temporal cell wall changes during cold acclimation and deacclimation and their potential involvement in freezing tolerance and growth. PHYSIOLOGIA PLANTARUM 2023; 175:e13837. [PMID: 36461890 PMCID: PMC10107845 DOI: 10.1111/ppl.13837] [Citation(s) in RCA: 6] [Impact Index Per Article: 6.0] [Reference Citation Analysis] [Abstract] [MESH Headings] [Grants] [Track Full Text] [Subscribe] [Scholar Register] [Received: 08/13/2022] [Revised: 11/16/2022] [Accepted: 11/25/2022] [Indexed: 05/19/2023]
Abstract
Plants adapt to freezing stress through cold acclimation, which is induced by nonfreezing low temperatures and accompanied by growth arrest. A later increase in temperature after cold acclimation leads to rapid loss of freezing tolerance and growth resumption, a process called deacclimation. Appropriate regulation of the trade-off between freezing tolerance and growth is necessary for efficient plant development in a changing environment. The cell wall, which mainly consists of polysaccharide polymers, is involved in both freezing tolerance and growth. Still, it is unclear how the balance between freezing tolerance and growth is affected during cold acclimation and deacclimation by the changes in cell wall structure and what role is played by its monosaccharide composition. Therefore, to elucidate the regulatory mechanisms controlling freezing tolerance and growth during cold acclimation and deacclimation, we investigated cell wall changes in detail by sequential fractionation and monosaccharide composition analysis in the model plant Arabidopsis thaliana, for which a plethora of information and mutant lines are available. We found that arabinogalactan proteins and pectic galactan changed in close coordination with changes in freezing tolerance and growth during cold acclimation and deacclimation. On the other hand, arabinan and xyloglucan did not return to nonacclimation levels after deacclimation but stabilized at cold acclimation levels. This indicates that deacclimation does not completely restore cell wall composition to the nonacclimated state but rather changes it to a specific novel composition that is probably a consequence of the loss of freezing tolerance and provides conditions for growth resumption.
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Affiliation(s)
- Tatsuya Kutsuno
- Graduate School of Science & EngineeringSaitama UniversitySaitamaJapan
| | - Sushan Chowhan
- Graduate School of Science & EngineeringSaitama UniversitySaitamaJapan
| | - Toshihisa Kotake
- Graduate School of Science & EngineeringSaitama UniversitySaitamaJapan
| | - Daisuke Takahashi
- Graduate School of Science & EngineeringSaitama UniversitySaitamaJapan
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Willick IR, Lowry DB. Cold acclimation threshold induction temperatures of switchgrass ecotypes grown under a long and short photoperiod. PHYSIOLOGIA PLANTARUM 2022; 174:e13812. [PMID: 36326192 PMCID: PMC9828680 DOI: 10.1111/ppl.13812] [Citation(s) in RCA: 1] [Impact Index Per Article: 0.5] [Reference Citation Analysis] [Abstract] [MESH Headings] [Grants] [Track Full Text] [Subscribe] [Scholar Register] [Received: 07/30/2022] [Revised: 10/21/2022] [Accepted: 10/24/2022] [Indexed: 05/04/2023]
Abstract
Plants can cold acclimate to enhance their freezing tolerance by sensing declining temperature and photoperiod cues. However, the factors influencing genotypic variation in the induction of cold acclimation are poorly understood among perennial grasses. We hypothesized that the more northern upland switchgrass (Panicum virgatum L.) ecotype develops a higher degree of freezing tolerance by initiating cold acclimation at higher temperatures as compared with the coastal and southern lowland ecotypes. First, we determined the optimal method for assessing freezing tolerance and the length of exposure to 8/4°C required to induce the maximum level of freezing tolerance in the most northern upland and most southern lowland genotypes. We characterized the maximum freezing tolerance of eight uplands, three coastal and five lowland genotypes grown for 21 days at 8/4°C and a 10 or 16 h photoperiod. Next, we identified the temperature required to induce cold acclimation by exposing the 16 genotypes for 7 days at 20-6°C constant temperatures under a 10 or 16 h photoperiod. Cold acclimation initiated at temperatures 5 and 7°C higher in upland than in coastal and lowland genotypes. Among upland genotypes the shorter photoperiod induced cold acclimation at a 1°C higher temperature. Genotypes originating from a more northern latitude initiate cold acclimation at higher temperatures and develop higher maximum freezing tolerances. An earlier response to declining temperatures may provide the upland ecotype with additional time to prepare for winter and provide an advantage when plants are subjected to the rapid changes in fall temperature associated with injurious frosts.
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Affiliation(s)
- Ian R. Willick
- Department of Plant BiologyMichigan State UniversityEast LansingMichiganUSA
- Great Lakes Bioenergy Research CenterMichigan State UniversityEast LansingMichiganUSA
- Plant Resilience InstituteMichigan State UniversityEast LansingMichiganUSA
- Kentville Research and Development CentreAgriculture and Agri‐Food CanadaKentvilleNSCanada
| | - David B. Lowry
- Department of Plant BiologyMichigan State UniversityEast LansingMichiganUSA
- Great Lakes Bioenergy Research CenterMichigan State UniversityEast LansingMichiganUSA
- Plant Resilience InstituteMichigan State UniversityEast LansingMichiganUSA
- Department of Ecology, Evolutionary Biology, and BehaviorMichigan State UniversityEast LansingMichiganUSA
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6
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Van Daele F, Honnay O, De Kort H. Genomic analyses point to a low evolutionary potential of prospective source populations for assisted migration in a forest herb. Evol Appl 2022; 15:1859-1874. [DOI: 10.1111/eva.13485] [Citation(s) in RCA: 0] [Impact Index Per Article: 0] [Reference Citation Analysis] [Track Full Text] [Journal Information] [Subscribe] [Scholar Register] [Received: 05/03/2022] [Revised: 08/13/2022] [Accepted: 09/17/2022] [Indexed: 11/26/2022] Open
Affiliation(s)
- Frederik Van Daele
- Department of Biology, Plant Conservation and Population Biology KU Leuven Leuven Belgium
| | - Olivier Honnay
- Department of Biology, Plant Conservation and Population Biology KU Leuven Leuven Belgium
| | - Hanne De Kort
- Department of Biology, Plant Conservation and Population Biology KU Leuven Leuven Belgium
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7
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Photosynthetic response and antioxidative activity of 'Hass' avocado cultivar treated with short-term low temperature. Sci Rep 2022; 12:11593. [PMID: 35804002 PMCID: PMC9270441 DOI: 10.1038/s41598-022-15821-3] [Citation(s) in RCA: 2] [Impact Index Per Article: 1.0] [Reference Citation Analysis] [Abstract] [Track Full Text] [Download PDF] [Figures] [Journal Information] [Subscribe] [Scholar Register] [Received: 03/24/2022] [Accepted: 06/29/2022] [Indexed: 11/24/2022] Open
Abstract
To investigate the effects of short-term low temperatures, three-year-old avocado (Persea americana cv. Hass) seedlings were treated with 1, − 2, or − 5 °C for 1 h and subsequently recovered in ambient condition for 24 h. Leaf color changes were investigated with chlorophyll, carotenoid, and phenolic contents. Photosynthetic responses were examined using gas exchange analysis. With H2O2 contents as oxidative stresses, enzymatic (ascorbate peroxidase, APX; glutathione reductase, GR; catalase, CAT; peroxidase, POD) and non-enzymatic antioxidant activities were determined using spectrophotometry. Leaves in the avocado seedlings started to be discolored with changes in the contents of chlorophyll a, carotenoids, and phenolics when treated with − 5 °C. However, the H2O2 content was not different in leaves treated with low temperatures. Photosynthetic activities decreased in leaves in the seedlings treated with − 5 °C. Of antioxidant enzymes, APX and GR have high activities in leaves in the seedlings treated with 1 and − 2 °C. In leaves in the seedlings treated with − 5 °C, the activities of all enzymes decreased. Non-enzymatic antioxidant activity was not different among leaves treated with low temperatures. These results indicated that APX and GR would play a critical role in withstanding chilling stress in ‘Hass’ avocado seedlings. However, under lethal temperature, even for a short time, the plants suffered irreversible damage with the breakdown of photosystem and antioxidant system.
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Boinot M, Karakas E, Koehl K, Pagter M, Zuther E. Cold stress and freezing tolerance negatively affect the fitness of Arabidopsis thaliana accessions under field and controlled conditions. PLANTA 2022; 255:39. [PMID: 35032192 PMCID: PMC8761124 DOI: 10.1007/s00425-021-03809-8] [Citation(s) in RCA: 2] [Impact Index Per Article: 1.0] [Reference Citation Analysis] [Abstract] [Key Words] [MESH Headings] [Grants] [Track Full Text] [Subscribe] [Scholar Register] [Received: 08/20/2021] [Accepted: 12/08/2021] [Indexed: 05/15/2023]
Abstract
Higher acclimated freezing tolerance improved winter survival, but reduced reproductive fitness of Arabidopsis thaliana accessions under field and controlled conditions. Low temperature is one of the most important abiotic factors influencing plant fitness and geographical distribution. In addition, cold stress is known to influence crop yield and is therefore of great economic importance. Increased freezing tolerance can be acquired by the process of cold acclimation, but this may be associated with a fitness cost. To assess the influence of cold stress on the fitness of plants, long-term field trials over 5 years were performed with six natural accessions of Arabidopsis thaliana ranging from very tolerant to very sensitive to freezing. Fitness parameters, as seed yield and 1000 seed mass, were measured and correlation analyses with temperature and freezing tolerance data performed. The results were compared with fitness parameters from controlled chamber experiments over 3 years with application of cold priming and triggering conditions. Winter survival and seed yield per plant were positively correlated with temperature in field experiments. In addition, winter survival and 1000 seed mass were correlated with the cold-acclimated freezing tolerance of the selected Arabidopsis accessions. The results provide strong evidence for a trade-off between higher freezing tolerance and reproductive fitness in A. thaliana, which might have ecological impacts in the context of global warming.
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Affiliation(s)
- Maximilian Boinot
- Max Planck Institute of Molecular Plant Physiology, Am Muehlenberg 1, 14476, Potsdam, Germany
| | - Esra Karakas
- Max Planck Institute of Molecular Plant Physiology, Am Muehlenberg 1, 14476, Potsdam, Germany
| | - Karin Koehl
- Max Planck Institute of Molecular Plant Physiology, Am Muehlenberg 1, 14476, Potsdam, Germany
| | - Majken Pagter
- Max Planck Institute of Molecular Plant Physiology, Am Muehlenberg 1, 14476, Potsdam, Germany
- Department of Chemistry and Bioscience, Aalborg University, 9220, Aalborg East, Denmark
| | - Ellen Zuther
- Max Planck Institute of Molecular Plant Physiology, Am Muehlenberg 1, 14476, Potsdam, Germany.
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Lakoba VT, Welbaum GE, Seiler JR, Barney JN. A perennial invader’s seed and rhizome differ in cold tolerance and apparent local adaptation. NEOBIOTA 2021. [DOI: 10.3897/neobiota.70.64614] [Citation(s) in RCA: 0] [Impact Index Per Article: 0] [Reference Citation Analysis] [Abstract] [Track Full Text] [Subscribe] [Scholar Register] [Indexed: 11/12/2022]
Abstract
Extreme cold plays a key role in the range boundaries of plants. Winter survival is central to their persistence, but not all structures are equally susceptible to frost kill and, therefore, limiting to distributions. Furthermore, we expect intraspecific variation in cold tolerance both within and among tissue types. In a laboratory setting, we determined freezing tolerances of two overwintering propagule types – seeds and rhizomes – of the globally invasive Johnsongrass (Sorghum halepense), testing apparent emergence and electrolyte leakage as a proxy for cell death. We used 18 genotypes from agricultural and non-agricultural habitats spanning the climatic extremes occupied by Johnsongrass in the US. Single node rhizome fragments had an average LT90 of -5.1 °C with no significant variation based on home climate or ecotype. Seeds frozen at -85 °C suffered a decline in germinability to 10% from 25% at 22 °C. Population origin did not affect seed response to any temperature. However, non-agricultural seeds germinated more and faster than agricultural seeds from the coldest climates, with a reversed relationship among warmest origin seeds. Regardless of ecotype, seeds from the cold/dry and wet/warm sectors of Johnsongrass’s range germinated more and faster. Drastic differences in cold tolerance between seeds and rhizome and evidence for seeds’ local adaptation to land use and climate suggest that its spread is likely limited by winter rhizome survival, as well as adaptability of germination behavior to longer winters. These findings shed light on Johnsongrass’ dispersal dynamics and help identify future avenues for mechanistically understanding its range limitation.
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Repkina N, Ignatenko A, Holoptseva E, MiszalskI Z, Kaszycki P, Talanova V. Exogenous Methyl Jasmonate Improves Cold Tolerance with Parallel Induction of Two Cold-Regulated ( COR) Genes Expression in Triticum aestivum L. PLANTS (BASEL, SWITZERLAND) 2021; 10:1421. [PMID: 34371628 PMCID: PMC8309304 DOI: 10.3390/plants10071421] [Citation(s) in RCA: 12] [Impact Index Per Article: 4.0] [Reference Citation Analysis] [Abstract] [Key Words] [Track Full Text] [Download PDF] [Figures] [Subscribe] [Scholar Register] [Received: 05/27/2021] [Revised: 06/28/2021] [Accepted: 07/08/2021] [Indexed: 01/24/2023]
Abstract
Methyl jasmonate (MJ) is an important plant growth regulator that plays a key role in tolerance to biotic and abiotic stresses. In this research, the effects of exogenous MJ on cold tolerance, photosynthesis, activity and gene expression of antioxidant enzymes, proline accumulation, and expression of cold-regulated (COR) genes in wheat seedlings under low temperature (4 °C) were investigated. Exogenous MJ treatment (1 µM) promoted wheat cold tolerance before and during cold exposure. Low temperature significantly decreased photosynthetic parameters, whereas MJ application led to their partial recovery under cold exposure. Hydrogen peroxide (H2O2) and malondialdehyde (MDA) levels increased in response to low temperature, and this was counteracted by MJ application. Exogenous MJ significantly enhanced the activities of antioxidant enzymes and upregulated the expression of MnSOD and CAT during cold exposure. MJ application also led to enhanced proline content before 4 °C exposure, whereas the P5CS gene expression was upregulated by MJ's presence at both normal (22 °C) and low (4 °C) temperatures. It was also shown that MJ tended to upregulate the expression of the COR genes WCS19 and WCS120 genes. We conclude that exogenous MJ can alleviate the negative effect of cold stress thus increasing wheat cold tolerance.
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Affiliation(s)
- Natalia Repkina
- Institute of Biology of the Karelian Research Centre of the Russian Academy of Sciences, Pushkinskaya St. 11, 185910 Petrozavodsk, Russia; (A.I.); (E.H.); (V.T.)
| | - Anna Ignatenko
- Institute of Biology of the Karelian Research Centre of the Russian Academy of Sciences, Pushkinskaya St. 11, 185910 Petrozavodsk, Russia; (A.I.); (E.H.); (V.T.)
| | - Ekaterina Holoptseva
- Institute of Biology of the Karelian Research Centre of the Russian Academy of Sciences, Pushkinskaya St. 11, 185910 Petrozavodsk, Russia; (A.I.); (E.H.); (V.T.)
| | - Zbigniew MiszalskI
- W. Szafer Institute of Botany, Polish Academy of Sciences, ul. Lubicz 46, 31512 Kraków, Poland;
| | - Paweł Kaszycki
- Department of Plant Biology and Biotechnology, Faculty of Biotechnology and Horticulture, University of Agriculture in Krakow, al. 29 Listopada 54, 31425 Kraków, Poland;
| | - Vera Talanova
- Institute of Biology of the Karelian Research Centre of the Russian Academy of Sciences, Pushkinskaya St. 11, 185910 Petrozavodsk, Russia; (A.I.); (E.H.); (V.T.)
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11
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Matthews ML, Marshall-Colón A. Multiscale plant modeling: from genome to phenome and beyond. Emerg Top Life Sci 2021; 5:231-237. [PMID: 33543231 PMCID: PMC8166335 DOI: 10.1042/etls20200276] [Citation(s) in RCA: 8] [Impact Index Per Article: 2.7] [Reference Citation Analysis] [Abstract] [Key Words] [MESH Headings] [Track Full Text] [Download PDF] [Figures] [Journal Information] [Subscribe] [Scholar Register] [Received: 11/25/2020] [Revised: 01/18/2021] [Accepted: 01/20/2021] [Indexed: 01/08/2023]
Abstract
Plants are complex organisms that adapt to changes in their environment using an array of regulatory mechanisms that span across multiple levels of biological organization. Due to this complexity, it is difficult to predict emergent properties using conventional approaches that focus on single levels of biology such as the genome, transcriptome, or metabolome. Mathematical models of biological systems have emerged as useful tools for exploring pathways and identifying gaps in our current knowledge of biological processes. Identification of emergent properties, however, requires their vertical integration across biological scales through multiscale modeling. Multiscale models that capture and predict these emergent properties will allow us to predict how plants will respond to a changing climate and explore strategies for plant engineering. In this review, we (1) summarize the recent developments in plant multiscale modeling; (2) examine multiscale models of microbial systems that offer insight to potential future directions for the modeling of plant systems; (3) discuss computational tools and resources for developing multiscale models; and (4) examine future directions of the field.
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Affiliation(s)
- Megan L Matthews
- Department of Civil and Environmental Engineering, University of Illinois at Urbana-Champaign, Urbana, IL 61801 USA
- Institute for Sustainability, Energy, and Environment, University of Illinois at Urbana-Champaign, Urbana, IL 61801 USA
- Carl R. Woese Institute for Genomic Biology, University of Illinois at Urbana-Champaign, Urbana, IL 61801 USA
| | - Amy Marshall-Colón
- Institute for Sustainability, Energy, and Environment, University of Illinois at Urbana-Champaign, Urbana, IL 61801 USA
- Carl R. Woese Institute for Genomic Biology, University of Illinois at Urbana-Champaign, Urbana, IL 61801 USA
- Department of Plant Biology, University of Illinois at Urbana-Champaign, Urbana, IL 61801 USA
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12
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Boldizsár Á, Soltész A, Tanino K, Kalapos B, Marozsán-Tóth Z, Monostori I, Dobrev P, Vankova R, Galiba G. Elucidation of molecular and hormonal background of early growth cessation and endodormancy induction in two contrasting Populus hybrid cultivars. BMC PLANT BIOLOGY 2021; 21:111. [PMID: 33627081 PMCID: PMC7905644 DOI: 10.1186/s12870-021-02828-7] [Citation(s) in RCA: 2] [Impact Index Per Article: 0.7] [Reference Citation Analysis] [Abstract] [Key Words] [MESH Headings] [Grants] [Track Full Text] [Subscribe] [Scholar Register] [Received: 08/18/2020] [Accepted: 01/06/2021] [Indexed: 06/02/2023]
Abstract
BACKGROUND Over the life cycle of perennial trees, the dormant state enables the avoidance of abiotic stress conditions. The growth cycle can be partitioned into induction, maintenance and release and is controlled by complex interactions between many endogenous and environmental factors. While phytohormones have long been linked with dormancy, there is increasing evidence of regulation by DAM and CBF genes. To reveal whether the expression kinetics of CBFs and their target PtDAM1 is related to growth cessation and endodormancy induction in Populus, two hybrid poplar cultivars were studied which had known differential responses to dormancy inducing conditions. RESULTS Growth cessation, dormancy status and expression of six PtCBFs and PtDAM1 were analyzed. The 'Okanese' hybrid cultivar ceased growth rapidly, was able to reach endodormancy, and exhibited a significant increase of several PtCBF transcripts in the buds on the 10th day. The 'Walker' cultivar had delayed growth cessation, was unable to enter endodormancy, and showed much lower CBF expression in buds. Expression of PtDAM1 peaked on the 10th day only in the buds of 'Okanese'. In addition, PtDAM1 was not expressed in the leaves of either cultivar while leaf CBFs expression pattern was several fold higher in 'Walker', peaking at day 1. Leaf phytohormones in both cultivars followed similar profiles during growth cessation but differentiated based on cytokinins which were largely reduced, while the Ox-IAA and iP7G increased in 'Okanese' compared to 'Walker'. Surprisingly, ABA concentration was reduced in leaves of both cultivars. However, the metabolic deactivation product of ABA, phaseic acid, exhibited an early peak on the first day in 'Okanese'. CONCLUSIONS Our results indicate that PtCBFs and PtDAM1 have differential kinetics and spatial localization which may be related to early growth cessation and endodormancy induction under the regime of low night temperature and short photoperiod in poplar. Unlike buds, PtCBFs and PtDAM1 expression levels in leaves were not associated with early growth cessation and dormancy induction under these conditions. Our study provides new evidence that the degradation of auxin and cytokinins in leaves may be an important regulatory point in a CBF-DAM induced endodormancy. Further investigation of other PtDAMs in bud tissue and a study of both growth-inhibiting and the degradation of growth-promoting phytohormones is warranted.
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Affiliation(s)
- Ákos Boldizsár
- Department of Plant Molecular Biology, Agricultural Institute, Centre for Agricultural Research, ELKH, Martonvásár, H-2462 Hungary
| | - Alexandra Soltész
- Department of Plant Molecular Biology, Agricultural Institute, Centre for Agricultural Research, ELKH, Martonvásár, H-2462 Hungary
| | - Karen Tanino
- Department of Plant Sciences, College of Agriculture and Bioresources, University of Saskatchewan, Saskatoon, SK S7N 5A8 Canada
| | - Balázs Kalapos
- Department of Plant Molecular Biology, Agricultural Institute, Centre for Agricultural Research, ELKH, Martonvásár, H-2462 Hungary
| | - Zsuzsa Marozsán-Tóth
- Department of Plant Molecular Biology, Agricultural Institute, Centre for Agricultural Research, ELKH, Martonvásár, H-2462 Hungary
| | - István Monostori
- Department of Plant Molecular Biology, Agricultural Institute, Centre for Agricultural Research, ELKH, Martonvásár, H-2462 Hungary
| | - Petre Dobrev
- Laboratory of Hormonal Regulations in Plants, Institute of Experimental Botany of the Czech Academy of Sciences, Prague, 165 02 Czech Republic
| | - Radomira Vankova
- Laboratory of Hormonal Regulations in Plants, Institute of Experimental Botany of the Czech Academy of Sciences, Prague, 165 02 Czech Republic
| | - Gábor Galiba
- Department of Plant Molecular Biology, Agricultural Institute, Centre for Agricultural Research, ELKH, Martonvásár, H-2462 Hungary
- Festetics Doctoral School, Georgikon Campus, Szent István University, Keszthely, H-8360 Hungary
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13
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Jaikumar NS, Dorn KM, Baas D, Wilke B, Kapp C, Snapp SS. Nucleic acid damage and DNA repair are affected by freezing stress in annual wheat (Triticum aestivum) and by plant age and freezing in its perennial relative (Thinopyrum intermedium). AMERICAN JOURNAL OF BOTANY 2020; 107:1693-1709. [PMID: 33340368 DOI: 10.1002/ajb2.1584] [Citation(s) in RCA: 6] [Impact Index Per Article: 1.5] [Reference Citation Analysis] [Abstract] [Key Words] [MESH Headings] [Track Full Text] [Subscribe] [Scholar Register] [Received: 04/14/2020] [Accepted: 08/27/2020] [Indexed: 06/12/2023]
Abstract
PREMISE Nucleic acid integrity can be compromised under many abiotic stresses. To date, however, few studies have considered whether nucleic acid damage and damage repair play a role in cold-stress adaptation. A further insufficiently explored question concerns how age affects cold stress adaptation among mature perennials. As a plant ages, the optimal trade-off between growth and stress tolerance may shift. METHODS Oxidative damage to RNA and expression of genes involved in DNA repair were compared in multiple mature cohorts of Thinopyrum intermedium (an emerging perennial cereal) and in wheat and barley under intermittent freezing stress and under nonfreezing conditions. Activity of glutathione peroxidase (GPX) and four other antioxidative enzymes was also measured under these conditions. DNA repair genes included photolyases involved in repairing ultraviolet-induced damage and two genes involved in repairing oxidatively induced damage (ERCC1, RAD23). RESULTS Freezing stress was accompanied by large increases in photolyase expression and ERCC1 expression (in wheat and Thinopyrum) and in GPX and GR activity (particularly in Thinopyrum). This is the first report of DNA photolyases being overexpressed under freezing stress. Older Thinopyrum had lower photolyase expression and less freezing-induced overexpression of ERCC1. Younger Thinopyrum plants sustained more oxidative damage to RNA. CONCLUSIONS Overexpression of DNA repair genes is an important aspect of cold acclimation. When comparing adult cohorts, aging was associated with changes in the freezing stress response, but not with overall increases or decreases in stress tolerance.
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Affiliation(s)
- Nikhil S Jaikumar
- Institute for Genomic Biology, University of Illinois Urbana-Champaign, 1206 West Gregory Drive, Urbana, IL, 61801, USA
| | - Kevin M Dorn
- United States Department of Agriculture, Agricultural Research Service, Soil Management and Sugarbeet Research Unit, 1701 Centre Ave, Fort Collins, CO, 80526, USA
| | - Dean Baas
- Michigan State University Extension, 612 E. Main Street, Centreville, MI, 49032, USA
| | - Brook Wilke
- Kellogg Biological Station, Michigan State University, 3700 East Gull Lake Drive, Hickory Corners, MI, 49060, USA
| | - Christian Kapp
- Upper Peninsula Research and Extension Center, Michigan State University, E3774 University Drive, Chatham, MI, 49816, USA
| | - Sieglinde S Snapp
- Department of Plant, Soil and Microbial Science, Michigan State University, 1066 Bogue St., East Lansing, MI, 48824, USA
- Center for Global Change and Earth Observations, Michigan State University, 1405 S Harrison Rd., East Lansing, MI, 48823, USA
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14
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Buttò V, Shishov V, Tychkov I, Popkova M, He M, Rossi S, Deslauriers A, Morin H. Comparing the Cell Dynamics of Tree-Ring Formation Observed in Microcores and as Predicted by the Vaganov-Shashkin Model. FRONTIERS IN PLANT SCIENCE 2020; 11:1268. [PMID: 32922430 PMCID: PMC7457011 DOI: 10.3389/fpls.2020.01268] [Citation(s) in RCA: 5] [Impact Index Per Article: 1.3] [Reference Citation Analysis] [Abstract] [Key Words] [Track Full Text] [Subscribe] [Scholar Register] [Received: 04/23/2020] [Accepted: 08/03/2020] [Indexed: 05/17/2023]
Abstract
New insights into the intra-annual dynamics of tree-ring formation can improve our understanding of tree-growth response to environmental conditions at high-resolution time scales. Obtaining this information requires, however, a weekly monitoring of wood formation, sampling that is extremely time-intensive and scarcely feasible over vast areas. Estimating the timing of cambial and xylem differentiation by modeling thus represents an interesting alternative for obtaining this important information by other means. Temporal dynamics of cambial divisions can be extracted from the daily tree-ring growth rate computed by the Vaganov-Shashkin (VS) simulation model, assuming that cell production is tightly linked to tree-ring growth. Nonetheless, these predictions have yet to be compared with direct observations of wood development, i.e., via microcoring, over a long time span. We tested the performance of the VS model by comparing the observed and predicted timing of wood formation in black spruce [Picea mariana (Mill.)]. We obtained microcores over 15 years at 5 sites along a latitudinal gradient in Quebec (Canada). The measured variables included cell size and the timing of cell production and differentiation. We calibrated the VS model using daily temperature and precipitation recorded by weather stations located on each site. The predicted and observed timing of cambial and enlarging cells were highly correlated (R 2 = 0.8); nonetheless, we detected a systematic overestimation in the predicted timing of cambial cells, with predictions delayed by 1-20 days compared with observations. The growth rate of cell diameter was correlated with the predicted growth rate assigned to each cambial cell, confirming that cell diameter developmental dynamics have the potential to be inferred by the tree-ring growth curve of the VS model. Model performances decrease substantially in estimating the end of wood formation. The systematic errors suggest that the actual relationships implemented in the model are unable to explain the phenological events in autumn. The mismatch between the observed and predicted timing of wood formation in black spruce within our study area can be reduced by better adapting the VS model to wet sites, a context for which this model has been rarely used.
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Affiliation(s)
- Valentina Buttò
- Département des Sciences fondamentales, Université du Québec à Chicoutimi, Chicoutimi, QC, Canada
- *Correspondence: Valentina Buttò,
| | - Vladimir Shishov
- Laboratory for Integral Studies of Forest Dynamics of Eurasia, Siberian Federal University, Krasnoyarsk, Russia
- Environmental and Research Center, South China Botanical Garden, Chinese Academy of Sciences, Guangzhou, China
| | - Ivan Tychkov
- Laboratory for Integral Studies of Forest Dynamics of Eurasia, Siberian Federal University, Krasnoyarsk, Russia
| | - Margarita Popkova
- Laboratory for Integral Studies of Forest Dynamics of Eurasia, Siberian Federal University, Krasnoyarsk, Russia
| | - Minhui He
- College of Forestry, Northwest Agriculture and Forestry University, Yangling, China
| | - Sergio Rossi
- Département des Sciences fondamentales, Université du Québec à Chicoutimi, Chicoutimi, QC, Canada
- Key Laboratory of Vegetation Restoration and Management of Degraded Ecosystems, Guangdong Provincial Key Laboratory of Applied Botany, South China Botanical Garden, Chinese Academy of Sciences, Guangzhou, China
| | - Annie Deslauriers
- Département des Sciences fondamentales, Université du Québec à Chicoutimi, Chicoutimi, QC, Canada
| | - Hubert Morin
- Département des Sciences fondamentales, Université du Québec à Chicoutimi, Chicoutimi, QC, Canada
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15
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Dong J, Zhao J, Zhang S, Yang T, Liu Q, Mao X, Fu H, Yang W, Liu B. Physiological and genome-wide gene expression analyses of cold-induced leaf rolling at the seedling stage in rice (Oryza sativa L.). ACTA ACUST UNITED AC 2019. [DOI: 10.1016/j.cj.2019.01.003] [Citation(s) in RCA: 3] [Impact Index Per Article: 0.6] [Reference Citation Analysis] [Track Full Text] [Journal Information] [Subscribe] [Scholar Register] [Indexed: 01/03/2023]
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16
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de Freitas GM, Thomas J, Liyanage R, Lay JO, Basu S, Ramegowda V, do Amaral MN, Benitez LC, Bolacel Braga EJ, Pereira A. Cold tolerance response mechanisms revealed through comparative analysis of gene and protein expression in multiple rice genotypes. PLoS One 2019; 14:e0218019. [PMID: 31181089 PMCID: PMC6557504 DOI: 10.1371/journal.pone.0218019] [Citation(s) in RCA: 19] [Impact Index Per Article: 3.8] [Reference Citation Analysis] [Abstract] [MESH Headings] [Grants] [Track Full Text] [Download PDF] [Figures] [Journal Information] [Subscribe] [Scholar Register] [Received: 11/10/2018] [Accepted: 05/24/2019] [Indexed: 11/25/2022] Open
Abstract
Due to its tropical origin and adaptation, rice is significantly impacted by cold stress, and consequently sustains large losses in growth and productivity. Currently, rice is the second most consumed cereal in the world and production losses caused by extreme temperature events in the context of "major climatic changes" can have major impacts on the world economy. We report here an analysis of rice genotypes in response to low-temperature stress, studied through physiological gas-exchange parameters, biochemical changes in photosynthetic pigments and antioxidants, and at the level of gene and protein expression, towards an understanding and identification of multiple low-temperature tolerance mechanisms. The first effects of cold stress were observed on photosynthesis among all genotypes. However, the tropical japonica genotypes Secano do Brazil and Cypress had a greater reduction in gas exchange parameters like photosynthesis and water use efficiency in comparison to the temperate japonica Nipponbare and M202 genotypes. The analysis of biochemical profiles showed that despite the impacts of low temperature on tolerant plants, they quickly adjusted to maintain their cellular homeostasis by an accumulation of antioxidants and osmolytes like phenolic compounds and proline. The cold tolerant and sensitive genotypes showed a clear difference in gene expression at the transcript level for OsGH3-2, OsSRO1a, OsZFP245, and OsTPP1, as well as for expression at the protein level for LRR-RLKs, bHLH, GLYI, and LTP1 proteins. This study exemplifies the cold tolerant features of the temperate japonica Nipponbare and M202 genotypes, as observed through the analysis of physiological and biochemical responses and the associated changes in gene and protein expression patterns. The genes and proteins showing differential expression response are notable candidates towards understanding the biological pathways affected in rice and for engineering cold tolerance, to generate cultivars capable of maintaining growth, development, and reproduction under cold stress. We also propose that the mechanisms of action of the genes analyzed are associated with the tolerance response.
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Affiliation(s)
- Gabriela Moraes de Freitas
- Crop, Soil, and Environmental Sciences, University of Arkansas, Fayetteville, Arkansas, United States of America
- Department of Botany, Federal University of Pelotas, Pelotas, Brazil
| | - Julie Thomas
- Crop, Soil, and Environmental Sciences, University of Arkansas, Fayetteville, Arkansas, United States of America
| | - Rohana Liyanage
- Department of Chemistry and Biochemistry, University of Arkansas, Fayetteville, Arkansas, United States of America
| | - Jackson O. Lay
- Department of Chemistry and Biochemistry, University of Arkansas, Fayetteville, Arkansas, United States of America
| | - Supratim Basu
- Crop, Soil, and Environmental Sciences, University of Arkansas, Fayetteville, Arkansas, United States of America
| | - Venkategowda Ramegowda
- Crop, Soil, and Environmental Sciences, University of Arkansas, Fayetteville, Arkansas, United States of America
| | | | | | | | - Andy Pereira
- Crop, Soil, and Environmental Sciences, University of Arkansas, Fayetteville, Arkansas, United States of America
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17
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Mechanism of Overwintering in Trees. ADVANCES IN EXPERIMENTAL MEDICINE AND BIOLOGY 2018. [PMID: 30288708 DOI: 10.1007/978-981-13-1244-1_8] [Citation(s) in RCA: 0] [Impact Index Per Article: 0] [Reference Citation Analysis] [Abstract] [Key Words] [Track Full Text] [Subscribe] [Scholar Register] [Indexed: 09/01/2023]
Abstract
Boreal trees possess very high freezing resistance, which is induced by short-day length and low temperatures, in order to survive severe subzero temperatures in winter. During autumn, cooperation of photoreceptors and circadian clock system perceiving photoperiod shortening results in growth cessation, dormancy development, and first induction of freezing resistance. The freezing resistance is further enhanced by subsequent low temperature during seasonal cold acclimation with concomitant changes in various morphological and physiological features including accumulation of sugars and late embryogenesis abundant proteins. The mechanism of adaptation to freezing temperatures differs depending on the type of tissue in boreal trees. For example, bark, cambium, and leaf cells tolerate freezing-induced dehydration by extracellular freezing, whereas xylem parenchyma cells avoid intracellular freezing by deep supercooling. In addition, dormant buds in some trees respond by extraorgan freezing. Boreal trees have evolved overwintering mechanisms such as dormancy and high freezing resistance in order to survive freezing temperatures in winter.
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18
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Förster L, Grant J, Michel T, Ng C, Barth S. Growth under cold conditions in a wide perennial ryegrass panel is under tight physiological control. PeerJ 2018; 6:e5520. [PMID: 30221088 PMCID: PMC6138037 DOI: 10.7717/peerj.5520] [Citation(s) in RCA: 7] [Impact Index Per Article: 1.2] [Reference Citation Analysis] [Abstract] [Key Words] [Track Full Text] [Download PDF] [Figures] [Journal Information] [Subscribe] [Scholar Register] [Received: 02/23/2018] [Accepted: 08/06/2018] [Indexed: 11/20/2022] Open
Abstract
Background Perennial ryegrass is a cool-season grass species from the family Poaceae and is widely cultivated in temperate regions because it exhibits rapid growth and establishment, and possesses high forage quality. The extension of the growing season in Ireland in spring and autumn is a breeding target to make farming more profitable since a grass-fed diet based on grazing is the cheapest way of nutrition for ruminants. Methods Fifty-seven perennial ryegrass accessions were screened for their ability to grow under typical Irish spring conditions as taken from long term temperature records in controlled climate chambers. They were grown in low temperature (8 °C/2 °C day/night) and control conditions (15 °C/8 °C day/night) in three consecutive independent experiments. Fresh weight, height, chlorophyll content and electrolyte leakage were measured, and these parameters were used to rank plant performance under low temperature growth conditions. Results The results showed that height, yield and electrolyte leakage are excellent measures for the impact of cold stress tolerance. Little variation in growth was seen under cold stress, but a wide variety of responses were observed under control conditions. Discussion Our results suggest that cold stress is under tight physiological control. Interestingly, the various genotypes responded differentially to more amenable control conditions, indicating that a quick response to more amenable growth conditions is a better target for breeding programmes.
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Affiliation(s)
- Lena Förster
- Crops, Environment & Land Use Programme, Crops Research Centre Oak Park, Teagasc, Carlow, Ireland
| | - Jim Grant
- Statistics and Applied Physics Department, Teagasc Research Operations Group, Dublin, Dublin, Ireland
| | - Thibauld Michel
- Crops, Environment & Land Use Programme, Crops Research Centre Oak Park, Teagasc, Carlow, Ireland
| | - Carl Ng
- UCD School of Biology and Environmental Science and UCD Earth Institute, University College Dublin, Dublin, Ireland
| | - Susanne Barth
- Crops, Environment & Land Use Programme, Crops Research Centre Oak Park, Teagasc, Carlow, Ireland
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19
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Watanabe M, Netzer F, Tohge T, Orf I, Brotman Y, Dubbert D, Fernie AR, Rennenberg H, Hoefgen R, Herschbach C. Metabolome and Lipidome Profiles of Populus × canescens Twig Tissues During Annual Growth Show Phospholipid-Linked Storage and Mobilization of C, N, and S. FRONTIERS IN PLANT SCIENCE 2018; 9:1292. [PMID: 30233628 PMCID: PMC6133996 DOI: 10.3389/fpls.2018.01292] [Citation(s) in RCA: 2] [Impact Index Per Article: 0.3] [Reference Citation Analysis] [Abstract] [Key Words] [Track Full Text] [Subscribe] [Scholar Register] [Received: 05/28/2018] [Accepted: 08/16/2018] [Indexed: 05/06/2023]
Abstract
The temperate climax tree species Fagus sylvatica and the floodplain tree species Populus × canescens possess contrasting phosphorus (P) nutrition strategies. While F. sylvatica has been documented to display P storage and mobilization (Netzer et al., 2017), this was not observed for Populus × canescens (Netzer et al., 2018b). Nevertheless, changes in the abundance of organic bound P in gray poplar trees indicated adaptation of the P nutrition to different needs during annual growth. The present study aimed at characterizing seasonal changes in metabolite and lipid abundances in gray poplar and uncovering differences in metabolite requirement due to specific needs depending on the season. Seasonal variations in the abundance of (i) sugar-Ps and phospholipids, (ii) amino acids, (iii) sulfur compounds, and (iv) carbon metabolites were expected. It was hypothesized that seasonal changes in metabolite levels relate to N, S, and C storage and mobilization. Changes in organic metabolites binding Pi (Porg) are supposed to support these processes. Variation in triacylglycerols, in sugar-phosphates, in metabolites of the TCA cycle and in the amino acid abundance of poplar twig buds, leaves, bark, and wood were found to be linked to changes in metabolite abundances as well as to C, N, and S storage and mobilization processes. The observed changes support the view of a lack of any P storage in poplar. Yet, during dormancy, contents of phospholipids in twig bark and wood were highest probably due to frost-hardening and to its function in extra-plastidic membranes such as amyloplasts, oleosomes, and protein bodies. Consistent with this assumption, in spring sugar-Ps increased when phospholipids declined and poplar plants entering the vegetative growth period and, hence, metabolic activity increases. These results indicate that poplar trees adopt a policy of P nutrition without P storage and mobilization that is different from their N- and S-nutrition strategies.
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Affiliation(s)
- Mutsumi Watanabe
- Max Planck Institute of Molecular Plant Physiology, Wissenschaftspark Potsdam-Golm, Potsdam, Germany
- NARA Institute of Science and Technology, Ikoma, Japan
| | - Florian Netzer
- Chair of Tree Physiology, Institute of Forest Sciences, Albert Ludwigs University of Freiburg, Freiburg, Germany
- Chair of Ecosystem Physiology, Institute of Forest Sciences, Albert Ludwigs University of Freiburg, Freiburg, Germany
| | - Takayuki Tohge
- Max Planck Institute of Molecular Plant Physiology, Wissenschaftspark Potsdam-Golm, Potsdam, Germany
- NARA Institute of Science and Technology, Ikoma, Japan
| | - Isabel Orf
- Max Planck Institute of Molecular Plant Physiology, Wissenschaftspark Potsdam-Golm, Potsdam, Germany
- Department of Life Sciences, Ben-Gurion University of the Negev, Beersheba, Israel
| | - Yariv Brotman
- Department of Life Sciences, Ben-Gurion University of the Negev, Beersheba, Israel
| | - David Dubbert
- Chair of Ecosystem Physiology, Institute of Forest Sciences, Albert Ludwigs University of Freiburg, Freiburg, Germany
| | - Alisdair R. Fernie
- Max Planck Institute of Molecular Plant Physiology, Wissenschaftspark Potsdam-Golm, Potsdam, Germany
| | - Heinz Rennenberg
- Chair of Tree Physiology, Institute of Forest Sciences, Albert Ludwigs University of Freiburg, Freiburg, Germany
| | - Rainer Hoefgen
- Max Planck Institute of Molecular Plant Physiology, Wissenschaftspark Potsdam-Golm, Potsdam, Germany
| | - Cornelia Herschbach
- Chair of Tree Physiology, Institute of Forest Sciences, Albert Ludwigs University of Freiburg, Freiburg, Germany
- Chair of Ecosystem Physiology, Institute of Forest Sciences, Albert Ludwigs University of Freiburg, Freiburg, Germany
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20
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Arisz SA, Heo JY, Koevoets IT, Zhao T, van Egmond P, Meyer AJ, Zeng W, Niu X, Wang B, Mitchell-Olds T, Schranz ME, Testerink C. DIACYLGLYCEROL ACYLTRANSFERASE1 Contributes to Freezing Tolerance. PLANT PHYSIOLOGY 2018; 177:1410-1424. [PMID: 29907701 PMCID: PMC6084661 DOI: 10.1104/pp.18.00503] [Citation(s) in RCA: 52] [Impact Index Per Article: 8.7] [Reference Citation Analysis] [Abstract] [MESH Headings] [Grants] [Track Full Text] [Subscribe] [Scholar Register] [Received: 04/28/2018] [Accepted: 06/06/2018] [Indexed: 05/18/2023]
Abstract
Freezing limits plant growth and crop productivity, and plant species in temperate zones have the capacity to develop freezing tolerance through complex modulation of gene expression affecting various aspects of metabolism and physiology. While many components of freezing tolerance have been identified in model species under controlled laboratory conditions, little is known about the mechanisms that impart freezing tolerance in natural populations of wild species. Here, we performed a quantitative trait locus (QTL) study of acclimated freezing tolerance in seedlings of Boechera stricta, a highly adapted relative of Arabidopsis (Arabidopsis thaliana) native to the Rocky Mountains. A single QTL was identified that contained the gene encoding ACYL-COENZYME A:DIACYLGLYCEROL ACYLTRANSFERASE1 (BstDGAT1), whose expression is highly cold responsive. The primary metabolic enzyme DGAT1 catalyzes the final step in assembly of triacylglycerol (TAG) by acyl transfer from acyl-CoA to diacylglycerol. Freezing tolerant plants showed higher DGAT1 expression during cold acclimation than more sensitive plants, and this resulted in increased accumulation of TAG in response to subsequent freezing. Levels of oligogalactolipids that are produced by SFR2 (SENSITIVE TO FREEZING2), an indispensable element of freezing tolerance in Arabidopsis, were also higher in freezing-tolerant plants. Furthermore, overexpression of AtDGAT1 led to increased freezing tolerance. We propose that DGAT1 confers freezing tolerance in plants by supporting SFR2-mediated remodeling of chloroplast membranes.
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Affiliation(s)
- Steven A Arisz
- Plant Cell Biology, Swammerdam Institute for Life Sciences, University of Amsterdam, 1090GE Amsterdam, The Netherlands
| | - Jae-Yun Heo
- Biosystematics Group, Wageningen University, 6708 PB Wageningen, The Netherlands
| | - Iko T Koevoets
- Plant Cell Biology, Swammerdam Institute for Life Sciences, University of Amsterdam, 1090GE Amsterdam, The Netherlands
- Laboratory of Plant Physiology, Wageningen University, 6708 PB Wageningen, The Netherlands
| | - Tao Zhao
- Biosystematics Group, Wageningen University, 6708 PB Wageningen, The Netherlands
| | - Pieter van Egmond
- Plant Physiology, Swammerdam Institute for Life Sciences, University of Amsterdam, 1090GE Amsterdam, The Netherlands
| | - A Jessica Meyer
- Plant Cell Biology, Swammerdam Institute for Life Sciences, University of Amsterdam, 1090GE Amsterdam, The Netherlands
| | | | | | - Baosheng Wang
- Department of Biology, Duke University, Durham, North Carolina 27708
| | | | - M Eric Schranz
- Biosystematics Group, Wageningen University, 6708 PB Wageningen, The Netherlands
| | - Christa Testerink
- Plant Cell Biology, Swammerdam Institute for Life Sciences, University of Amsterdam, 1090GE Amsterdam, The Netherlands
- Laboratory of Plant Physiology, Wageningen University, 6708 PB Wageningen, The Netherlands
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Optimization of Photosynthetic Productivity in Contrasting Environments by Regulons Controlling Plant Form and Function. Int J Mol Sci 2018; 19:ijms19030872. [PMID: 29543762 PMCID: PMC5877733 DOI: 10.3390/ijms19030872] [Citation(s) in RCA: 25] [Impact Index Per Article: 4.2] [Reference Citation Analysis] [Abstract] [Key Words] [Track Full Text] [Download PDF] [Figures] [Journal Information] [Subscribe] [Scholar Register] [Received: 01/30/2018] [Revised: 03/13/2018] [Accepted: 03/13/2018] [Indexed: 01/06/2023] Open
Abstract
We review the role of a family of transcription factors and their regulons in maintaining high photosynthetic performance across a range of challenging environments with a focus on extreme temperatures and water availability. Specifically, these transcription factors include CBFs (C-repeat binding factors) and DREBs (dehydration-responsive element-binding), with CBF/DREB1 primarily orchestrating cold adaptation and other DREBs serving in heat, drought, and salinity adaptation. The central role of these modulators in plant performance under challenging environments is based on (i) interweaving of these regulators with other key signaling networks (plant hormones and redox signals) as well as (ii) their function in integrating responses across the whole plant, from light-harvesting and sugar-production in the leaf to foliar sugar export and water import and on to the plant's sugar-consuming sinks (growth, storage, and reproduction). The example of Arabidopsisthaliana ecotypes from geographic origins with contrasting climates is used to describe the links between natural genetic variation in CBF transcription factors and the differential acclimation of plant anatomical and functional features needed to support superior photosynthetic performance in contrasting environments. Emphasis is placed on considering different temperature environments (hot versus cold) and light environments (limiting versus high light), on trade-offs between adaptations to contrasting environments, and on plant lines minimizing such trade-offs.
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22
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Jin Y, Zhai S, Wang W, Ding X, Guo Z, Bai L, Wang S. Identification of genes from the ICE-CBF-COR pathway under cold stress in Aegilops- Triticum composite group and the evolution analysis with those from Triticeae. PHYSIOLOGY AND MOLECULAR BIOLOGY OF PLANTS : AN INTERNATIONAL JOURNAL OF FUNCTIONAL PLANT BIOLOGY 2018. [PMID: 29515316 PMCID: PMC5834981 DOI: 10.1007/s12298-017-0495-y] [Citation(s) in RCA: 8] [Impact Index Per Article: 1.3] [Reference Citation Analysis] [Abstract] [Key Words] [Grants] [Track Full Text] [Subscribe] [Scholar Register] [Indexed: 05/03/2023]
Abstract
Adverse environmental conditions limit various aspects of plant growth, productivity, and ecological distribution. To get more insights into the signaling pathways under low temperature, we identified 10 C-repeat binding factors (CBFs), 9 inducer of CBF expression (ICEs) and 10 cold-responsive (CORs) genes from Aegilops-Triticum composite group under cold stress. Conserved amino acids analysis revealed that all CBF, ICE, COR contained specific and typical functional domains. Phylogenetic analysis of CBF proteins from Triticeae showed that these CBF homologs were divided into 11 groups. CBFs from Triticum were found in every group, which shows that these CBFs generated prior to the divergence of the subfamilies of Triticeae. The evolutionary relationship among the ICE and COR proteins in Poaceae were divided into four groups with high multispecies specificity, respectively. Moreover, expression analysis revealed that mRNA accumulation was altered by cold treatment and the genes of three types involved in the ICE-CBF-COR signaling pathway were induced by cold stress. Together, the results make CBF, ICE, COR genes family in Triticeae more abundant, and provide a starting point for future studies on transcriptional regulatory network for improvement of chilling tolerance in crop.
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Affiliation(s)
- Ya’nan Jin
- College of Biosciences and Biotechnology, Shenyang Agricultural University, Shenyang, 110866 Liaoning China
- College of Agronomy, Shenyang Agricultural University, Shenyang, 110866 Liaoning China
| | - Shanshan Zhai
- College of Biosciences and Biotechnology, Shenyang Agricultural University, Shenyang, 110866 Liaoning China
| | - Wenjia Wang
- College of Biosciences and Biotechnology, Shenyang Agricultural University, Shenyang, 110866 Liaoning China
| | - Xihan Ding
- College of Biosciences and Biotechnology, Shenyang Agricultural University, Shenyang, 110866 Liaoning China
| | - Zhifu Guo
- College of Biosciences and Biotechnology, Shenyang Agricultural University, Shenyang, 110866 Liaoning China
| | - Liping Bai
- College of Biosciences and Biotechnology, Shenyang Agricultural University, Shenyang, 110866 Liaoning China
| | - Shu Wang
- College of Agronomy, Shenyang Agricultural University, Shenyang, 110866 Liaoning China
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23
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Sade N, Del Mar Rubio-Wilhelmi M, Umnajkitikorn K, Blumwald E. Stress-induced senescence and plant tolerance to abiotic stress. JOURNAL OF EXPERIMENTAL BOTANY 2018; 69:845-853. [PMID: 28992323 DOI: 10.1093/jxb/erx235] [Citation(s) in RCA: 114] [Impact Index Per Article: 19.0] [Reference Citation Analysis] [Abstract] [Key Words] [MESH Headings] [Track Full Text] [Subscribe] [Scholar Register] [Received: 04/10/2017] [Accepted: 06/14/2017] [Indexed: 05/20/2023]
Abstract
Senescence is an age-dependent process, ultimately leading to plant death, that in annual crop plants overlaps with the reproductive stage of development. Research on the molecular and biochemical mechanisms of leaf senescence has revealed a multi-layered regulatory network operating to control age-dependent processes. Abiotic stress-induced senescence challenges source-sink relationships and results in significant reduction in crop yields. Although processes associated with plant senescence are well studied, the mechanisms regulating stress-induced senescence are not well known. Here, we discuss the effects of abiotic stress on crop productivity, mechanisms associated with stress-induced senescence, and the possible use of these mechanisms for the generation of plant stress tolerance. We emphasize the involvement of source strength and stability of the photosynthetic apparatus in this process, and suggest a possible role of a perennial plant life strategy for the amelioration of stress-induced senescence.
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Affiliation(s)
- Nir Sade
- Department of Plant Sciences, University of California, Davis, CA, USA
| | | | | | - Eduardo Blumwald
- Department of Plant Sciences, University of California, Davis, CA, USA
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24
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Lloret A, Badenes ML, Ríos G. Modulation of Dormancy and Growth Responses in Reproductive Buds of Temperate Trees. FRONTIERS IN PLANT SCIENCE 2018; 9:1368. [PMID: 30271422 PMCID: PMC6146825 DOI: 10.3389/fpls.2018.01368] [Citation(s) in RCA: 31] [Impact Index Per Article: 5.2] [Reference Citation Analysis] [Abstract] [Key Words] [Track Full Text] [Subscribe] [Scholar Register] [Received: 04/24/2018] [Accepted: 08/29/2018] [Indexed: 05/20/2023]
Abstract
During autumn perennial trees cease growth and form structures called buds in order to protect meristems from the unfavorable environmental conditions, including low temperature and desiccation. In addition to increased tolerance to these abiotic stresses, reproductive buds modulate developmental programs leading to dormancy induction to avoid premature growth resumption, and flowering pathways. Stress tolerance, dormancy, and flowering processes are thus physically and temporarily restricted to a bud, and consequently forced to interact at the regulatory level. We review recent genomic, genetic, and molecular contributions to the knowledge of these three processes in trees, highlighting the role of epigenetic modifications, phytohormones, and common regulatory factors. Finally, we emphasize the utility of transcriptomic approaches for the identification of key structural and regulatory genes involved in bud processes, illustrated with our own experience using peach as a model.
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Aidoo MK, Sherman T, Lazarovitch N, Fait A, Rachmilevitch S. A bell pepper cultivar tolerant to chilling enhanced nitrogen allocation and stress-related metabolite accumulation in the roots in response to low root-zone temperature. PHYSIOLOGIA PLANTARUM 2017; 161:196-210. [PMID: 28444904 DOI: 10.1111/ppl.12584] [Citation(s) in RCA: 3] [Impact Index Per Article: 0.4] [Reference Citation Analysis] [Abstract] [MESH Headings] [Track Full Text] [Subscribe] [Scholar Register] [Received: 11/27/2016] [Revised: 03/05/2017] [Accepted: 04/03/2017] [Indexed: 06/07/2023]
Abstract
Two bell pepper (Capsicum annuum) cultivars, differing in their response to chilling, were exposed to three levels of root-zone temperatures. Gas exchange, shoot and root phenology, and the pattern of change of the central metabolites and secondary metabolites caffeate and benzoate in the leaves and roots were profiled. Low root-zone temperature significantly inhibited gaseous exchange, with a greater effect on the sensitive commercial pepper hybrid (Canon) than on the new hybrid bred to enhance abiotic stress tolerance (S103). The latter was less affected by the treatment with respect to plant height, shoot dry mass, root maximum length, root projected area, number of root tips and root dry mass. More carbon was allocated to the leaves of S103 than nitrogen at 17°C, while in the roots at 17°C, more nitrogen was allocated and the ratio between C/N decreased. Metabolite profiling showed greater increase in the root than in the leaves. Leaf response between the two cultivars differed significantly. The roots accumulated stress-related metabolites including γ-aminobutyric acid (GABA), proline, galactinol and raffinose and at chilling (7°C) resulted in an increase of sugars in both cultivars. Our results suggest that the enhanced tolerance of S103 to root cold stress, reflected in the relative maintenance of shoot and root growth, is likely linked to a more effective regulation of photosynthesis facilitated by the induction of stress-related metabolism.
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Affiliation(s)
- Moses Kwame Aidoo
- The French Associates Institute for Agriculture and Biotechnology of Drylands, Jacob Blaustein Institutes for Desert Research, Ben-Gurion University of the Negev, Beer-Sheva, Israel
| | - Tal Sherman
- Zeraim Gedera, Syngenta Seed Company, Kibutz Revadim, Israel
| | - Naftali Lazarovitch
- The French Associates Institute for Agriculture and Biotechnology of Drylands, Jacob Blaustein Institutes for Desert Research, Ben-Gurion University of the Negev, Beer-Sheva, Israel
| | - Aaron Fait
- The French Associates Institute for Agriculture and Biotechnology of Drylands, Jacob Blaustein Institutes for Desert Research, Ben-Gurion University of the Negev, Beer-Sheva, Israel
| | - Shimon Rachmilevitch
- The French Associates Institute for Agriculture and Biotechnology of Drylands, Jacob Blaustein Institutes for Desert Research, Ben-Gurion University of the Negev, Beer-Sheva, Israel
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Dalmannsdottir S, Jørgensen M, Rapacz M, Østrem L, Larsen A, Rødven R, Rognli OA. Cold acclimation in warmer extended autumns impairs freezing tolerance of perennial ryegrass (Lolium perenne) and timothy (Phleum pratense). PHYSIOLOGIA PLANTARUM 2017; 160:266-281. [PMID: 28144950 DOI: 10.1111/ppl.12548] [Citation(s) in RCA: 8] [Impact Index Per Article: 1.1] [Reference Citation Analysis] [Abstract] [MESH Headings] [Track Full Text] [Subscribe] [Scholar Register] [Received: 10/28/2016] [Revised: 12/21/2016] [Accepted: 01/18/2017] [Indexed: 05/11/2023]
Abstract
The effect of variable autumn temperatures in combination with decreasing irradiance and daylength on photosynthesis, growth cessation and freezing tolerance was investigated in northern- and southern-adapted populations of perennial ryegrass (Lolium perenne) and timothy (Phleum pratense) intended for use in regions at northern high latitudes. Plants were subjected to three different acclimation temperatures; 12, 6 and 9/3°C (day/night) for 4 weeks, followed by 1 week of cold acclimation at 2°C under natural light conditions. This experimental setup was repeated at three different periods during autumn with decreasing sums of irradiance and daylengths. Photoacclimation, leaf elongation and freezing tolerance were studied. The results showed that plants cold acclimated during the period with lowest irradiance and shortest day had lowest freezing tolerance, lowest photosynthetic activity, longest leaves and least biomass production. Higher acclimation temperature (12°C) resulted in lower freezing tolerance, lower photosynthetic activity, faster leaf elongation rate and higher biomass compared with the other temperatures. Photochemical mechanisms were predominant in photoacclimation. The northern-adapted populations had a better freezing tolerance than the southern-adapted except when grown during the late autumn period and at the highest temperature; then there were no differences between the populations. Our results indicate that the projected climate change in the north may reduce freezing tolerance in grasses as acclimation will take place at higher temperatures and shorter daylengths with lower irradiance.
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Affiliation(s)
- Sigridur Dalmannsdottir
- Department of Grassland and Livestock, Norwegian Institute of Bioeconomy Research, Holt, 9016 Tromsø, Norway
- Department of Plant Sciences, Faculty of Biosciences, Norwegian University of Life Sciences, 1432, Ås
| | - Marit Jørgensen
- Department of Grassland and Livestock, Norwegian Institute of Bioeconomy Research, Holt, 9016 Tromsø, Norway
| | - Marcin Rapacz
- Department of Plant Physiology, University of Agriculture in Krakow, 30-239, Krakow, Poland
| | - Liv Østrem
- Department of Grassland and Livestock, Norwegian Institute of Bioeconomy Research, Fureneset, 6967, Hellevik i Fjaler, Norway
| | - Arild Larsen
- Graminor AS, Bjørke gård, Hommelstadvegen 60, 2322, Ridabu, Norway
| | - Rolf Rødven
- Department of Grassland and Livestock, Norwegian Institute of Bioeconomy Research, Holt, 9016 Tromsø, Norway
- Faculty of Bioscience, Fisheries and Economics, UiT - The Arctic University of Norway, Tromsø, 9037, Norway
| | - Odd Arne Rognli
- Department of Plant Sciences, Faculty of Biosciences, Norwegian University of Life Sciences, 1432, Ås
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May RL, Warner S, Wingler A. Classification of intra-specific variation in plant functional strategies reveals adaptation to climate. ANNALS OF BOTANY 2017; 119:1343-1352. [PMID: 28369157 PMCID: PMC5604582 DOI: 10.1093/aob/mcx031] [Citation(s) in RCA: 21] [Impact Index Per Article: 3.0] [Reference Citation Analysis] [Abstract] [Key Words] [MESH Headings] [Track Full Text] [Subscribe] [Scholar Register] [Received: 12/13/2016] [Accepted: 02/28/2017] [Indexed: 05/02/2023]
Abstract
Background and Aims In plants, extensive intra-specific variation exists in the allocation of resources between vegetative growth and reproduction, reflecting different functional strategies. A simple method for the classification of intra-specific variation in these strategies would enable characterization of evolutionary and ecological processes. Methods C-S-R theory can be applied to classify functional strategies (competitive C; stress tolerant, S; ruderal, R) in different plant species. Using a diverse set of arabidopsis ( Arabidopsis thaliana ) accessions grown under common conditions, it was tested whether a simple approach designed for allocating C-S-R strategies at the species level can also be used to analyse intra-specific variation. Key Results Substantial intra-specific variation between arabidopsis accessions was found along the S-R axis. There was a positive correlation of temperature at the geographical origin with the dimension of S and a negative correlation with the dimension of R. Flowering time in a natural annual cycle and leaf dry matter content were identified as the main determinants of this adaptation, with plants originating from warmer climates having a higher leaf dry matter content and flowering earlier in a common garden. Conclusions It was shown that functional strategies reflect adaptation to climate, with consequences for important traits such as fecundity and total plant dry weight. The approach could be used in genome-wide association studies to determine the genetic basis of functional strategies in wild species or crops.
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Affiliation(s)
- Rose-Lucy May
- Research Department of Genetics, Evolution and Environment, University College London, Gower Street, London WC1E 6BT, UK
| | - Stuart Warner
- School of Biological, Earth and Environmental Sciences, University College Cork, Distillery Fields, North Mall, Cork, Ireland
| | - Astrid Wingler
- Research Department of Genetics, Evolution and Environment, University College London, Gower Street, London WC1E 6BT, UK
- School of Biological, Earth and Environmental Sciences, University College Cork, Distillery Fields, North Mall, Cork, Ireland
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Todaka D, Zhao Y, Yoshida T, Kudo M, Kidokoro S, Mizoi J, Kodaira KS, Takebayashi Y, Kojima M, Sakakibara H, Toyooka K, Sato M, Fernie AR, Shinozaki K, Yamaguchi-Shinozaki K. Temporal and spatial changes in gene expression, metabolite accumulation and phytohormone content in rice seedlings grown under drought stress conditions. THE PLANT JOURNAL : FOR CELL AND MOLECULAR BIOLOGY 2017; 90:61-78. [PMID: 28019048 DOI: 10.1111/tpj.13468] [Citation(s) in RCA: 100] [Impact Index Per Article: 14.3] [Reference Citation Analysis] [Abstract] [Key Words] [MESH Headings] [Track Full Text] [Subscribe] [Scholar Register] [Received: 09/09/2016] [Revised: 12/14/2016] [Accepted: 12/16/2016] [Indexed: 05/18/2023]
Abstract
In order to analyze the molecular mechanisms underlying the responses of plants to different levels of drought stress, we developed a soil matric potential (SMP)-based irrigation system that precisely controls soil moisture. Using this system, rice seedlings were grown under three different drought levels, denoted Md1, Md2 and Md3, with SMP values set to -9.8, -31.0 and -309.9 kPa, respectively. Although the Md1 treatment did not alter the visible phenotype, the Md2 treatment caused stomatal closure and shoot growth retardation (SGR). The Md3 treatment markedly induced SGR, without inhibition of photosynthesis. More severe drought (Sds) treatment, under which irrigation was terminated, resulted in the wilting of leaves and inhibition of photosynthesis. Metabolome analysis revealed the accumulation of primary sugars under Md3 and Sds and of most amino acids under Sds. The starch content was increased under Md3 and decreased under Sds. Transcriptome data showed that the expression profiles of associated genes supported the observed changes in photosynthesis and metabolites, suggesting that the time lag from SGR to inhibition of photosynthesis might lead to the accumulation of photosynthates under Md3, which can be used as osmolytes under Sds. To gain further insight into the observed SGR, transcriptome and hormonome analyses were performed in specific tissues. The results showed specific decreases in indole-3-acetic acid (IAA) and cytokinin levels in Md2-, Md3- and Sds-treated shoot bases, though the expression levels of hormone metabolism-related genes were not reflected in IAA and cytokinin contents. These observations suggest that drought stress affects the distribution or degradation of cytokinin and IAA molecules.
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Affiliation(s)
- Daisuke Todaka
- Laboratory of Plant Molecular Physiology, Graduate School of Agricultural and Life Sciences, The University of Tokyo, Tokyo, 113-8657, Japan
| | - Yu Zhao
- Laboratory of Plant Molecular Physiology, Graduate School of Agricultural and Life Sciences, The University of Tokyo, Tokyo, 113-8657, Japan
| | - Takuya Yoshida
- Laboratory of Plant Molecular Physiology, Graduate School of Agricultural and Life Sciences, The University of Tokyo, Tokyo, 113-8657, Japan
- Max-Planck-Institut für Molekulare Pflanzenphysiologie, Am Mühlenberg 1, Potsdam-Golm, 14476, Germany
| | - Madoka Kudo
- Laboratory of Plant Molecular Physiology, Graduate School of Agricultural and Life Sciences, The University of Tokyo, Tokyo, 113-8657, Japan
| | - Satoshi Kidokoro
- Laboratory of Plant Molecular Physiology, Graduate School of Agricultural and Life Sciences, The University of Tokyo, Tokyo, 113-8657, Japan
| | - Junya Mizoi
- Laboratory of Plant Molecular Physiology, Graduate School of Agricultural and Life Sciences, The University of Tokyo, Tokyo, 113-8657, Japan
| | - Ken-Suke Kodaira
- Laboratory of Plant Molecular Physiology, Graduate School of Agricultural and Life Sciences, The University of Tokyo, Tokyo, 113-8657, Japan
| | - Yumiko Takebayashi
- Plant Productivity Systems Research Group, RIKEN Center for Sustainable Resource Science, Yokohama, Kanagawa, 230-0045, Japan
| | - Mikiko Kojima
- Plant Productivity Systems Research Group, RIKEN Center for Sustainable Resource Science, Yokohama, Kanagawa, 230-0045, Japan
| | - Hitoshi Sakakibara
- Plant Productivity Systems Research Group, RIKEN Center for Sustainable Resource Science, Yokohama, Kanagawa, 230-0045, Japan
| | - Kiminori Toyooka
- Mass Spectrometry and Microscopy Unit, RIKEN Center for Sustainable Resource Science, Yokohama, Kanagawa, 230-0045, Japan
| | - Mayuko Sato
- Mass Spectrometry and Microscopy Unit, RIKEN Center for Sustainable Resource Science, Yokohama, Kanagawa, 230-0045, Japan
| | - Alisdair R Fernie
- Max-Planck-Institut für Molekulare Pflanzenphysiologie, Am Mühlenberg 1, Potsdam-Golm, 14476, Germany
| | - Kazuo Shinozaki
- Gene Discovery Research Group, RIKEN Center for Sustainable Resource Science, Yokohama, Kanagawa, 230-0045, Japan
| | - Kazuko Yamaguchi-Shinozaki
- Laboratory of Plant Molecular Physiology, Graduate School of Agricultural and Life Sciences, The University of Tokyo, Tokyo, 113-8657, Japan
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Optimal Regulation of the Balance between Productivity and Overwintering of Perennial Grasses in a Warmer Climate. AGRONOMY-BASEL 2017. [DOI: 10.3390/agronomy7010019] [Citation(s) in RCA: 8] [Impact Index Per Article: 1.1] [Reference Citation Analysis] [Track Full Text] [Subscribe] [Scholar Register] [Indexed: 11/16/2022]
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Zhou M, Chen H, Wei D, Ma H, Lin J. Arabidopsis CBF3 and DELLAs positively regulate each other in response to low temperature. Sci Rep 2017; 7:39819. [PMID: 28051152 PMCID: PMC5209670 DOI: 10.1038/srep39819] [Citation(s) in RCA: 55] [Impact Index Per Article: 7.9] [Reference Citation Analysis] [Abstract] [Track Full Text] [Download PDF] [Figures] [Journal Information] [Subscribe] [Scholar Register] [Received: 12/18/2015] [Accepted: 11/28/2016] [Indexed: 11/09/2022] Open
Abstract
The C-repeat binding factor (CBF) is crucial for regulation of cold response in higher plants. In Arabidopsis, the mechanism of CBF3-caused growth retardation is still unclear. Our present work shows that CBF3 shares the similar repression of bioactive gibberellin (GA) as well as upregulation of DELLA proteins with CBF1 and -2. Genetic analysis reveals that DELLAs play an essential role in growth reduction mediated by CBF1, -2, -3 genes. The in vivo and in vitro evidences demonstrate that GA2-oxidase 7 gene is a novel CBF3 regulon. Meanwhile, DELLAs contribute to cold induction of CBF1, -2, -3 genes through interaction with jasmonate (JA) signaling. We conclude that CBF3 promotes DELLAs accumulation through repressing GA biosynthesis and DELLAs positively regulate CBF3 involving JA signaling. CBFs and DELLAs collaborate to retard plant growth in response to low temperature.
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Affiliation(s)
- Mingqi Zhou
- State Key Laboratory of Genetic Engineering, Institute of Plant Biology, School of Life Sciences, Fudan University, Shanghai 200433, People's Republic of China
| | - Hu Chen
- State Key Laboratory of Genetic Engineering, Institute of Plant Biology, School of Life Sciences, Fudan University, Shanghai 200433, People's Republic of China
| | - Donghui Wei
- State Key Laboratory of Genetic Engineering, Institute of Plant Biology, School of Life Sciences, Fudan University, Shanghai 200433, People's Republic of China
| | - Hong Ma
- State Key Laboratory of Genetic Engineering, Institute of Plant Biology, School of Life Sciences, Fudan University, Shanghai 200433, People's Republic of China
| | - Juan Lin
- State Key Laboratory of Genetic Engineering, Institute of Plant Biology, School of Life Sciences, Fudan University, Shanghai 200433, People's Republic of China
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Jaikumar NS, Snapp SS, Sharkey TD. Older Thinopyrum intermedium (Poaceae) plants exhibit superior photosynthetic tolerance to cold stress and greater increases in two photosynthetic enzymes under freezing stress compared with young plants. JOURNAL OF EXPERIMENTAL BOTANY 2016; 67:4743-53. [PMID: 27401911 PMCID: PMC4973744 DOI: 10.1093/jxb/erw253] [Citation(s) in RCA: 0] [Impact Index Per Article: 0] [Reference Citation Analysis] [Abstract] [Key Words] [MESH Headings] [Track Full Text] [Subscribe] [Scholar Register] [Indexed: 05/07/2023]
Abstract
Effects of plant age on resource acquisition and stress tolerance processes is a largely unstudied subject in herbaceous perennials. In a field experiment, we compared rates of photosynthesis (A), ribulose-1,5-bisphosphate (RuBP) carboxylation capacity (V Cmax), maximum electron transport rate (J max), and triose phosphate utilization (TPU), as well as concentrations of Rubisco and sucrose-phosphate synthase (SPS) in 5-year-old and 2-year-old intermediate wheatgrass (Thinopyrum intermedium) under both optimal growing conditions and cold stress in early spring and autumn. This species is a relative of wheat undergoing domestication. An additional experiment compared photosynthetic rates in different cohorts at mid-season and under colder conditions. We hypothesized that photosynthetic capacity in older plants would be lower under favorable conditions but higher under cold stress. Our hypothesis was generally supported. Under cold stress, 5-year-old plants exhibited higher A, TPU, and temperature-adjusted V Cmax than younger plants, as well as 50% more SPS and 37% more Rubisco. In contrast, at mid-season, photosynthetic capacities in older plants were lower than in younger plants in one experiment, and similar in the other, independent of differences in water status. Both cohorts increased A, temperature-adjusted TPU and J max, [Rubisco], and [SPS] under cold stress, but changes were greater in older plants. Photosynthetic differences were largest at 1.2 ºC in very early spring, where older plants had 200% higher A and maintained up to 17% of their peak photosynthetic capacity. We find evidence of increased cold tolerance in older cohorts of wheatgrass, consistent with a growing body of research in woody perennials.
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Affiliation(s)
- Nikhil S Jaikumar
- Institute for Genomic Biology, University of Illinois Urbana-Champaign, 1206 West Gregory Drive, Urbana, IL 61821, USA
| | - Sieglinde S Snapp
- Program in Ecology, Evolutionary Biology and Behavior, Michigan State University, East Lansing, MI 48824, USA Department of Plant, Soil, and Microbial Science, Michigan State University, 1066 Bogue Street, East Lansing, MI 48824, USA
| | - Thomas D Sharkey
- Department of Biochemistry and Molecular Biology, Michigan State University, 603 Wilson Road, East Lansing, MI 48824, USA
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Wingler A, Hennessy D. Limitation of Grassland Productivity by Low Temperature and Seasonality of Growth. FRONTIERS IN PLANT SCIENCE 2016; 7:1130. [PMID: 27512406 PMCID: PMC4962554 DOI: 10.3389/fpls.2016.01130] [Citation(s) in RCA: 6] [Impact Index Per Article: 0.8] [Reference Citation Analysis] [Abstract] [Key Words] [Track Full Text] [Subscribe] [Scholar Register] [Received: 04/26/2016] [Accepted: 07/15/2016] [Indexed: 06/01/2023]
Abstract
The productivity of temperate grassland is limited by the response of plants to low temperature, affecting winter persistence and seasonal growth rates. During the winter, the growth of perennial grasses is restricted by a combination of low temperature and the lack of available light, but during early spring low ground temperature is the main limiting factor. Once temperature increases, growth is stimulated, resulting in a peak in growth in spring before growth rates decline later in the season. Growth is not primarily limited by the ability to photosynthesize, but controlled by active regulatory processes that, e.g., enable plants to restrict growth and conserve resources for cold acclimation and winter survival. An insufficient ability to cold acclimate can affect winter persistence, thereby also reducing grassland productivity. While some mechanistic knowledge is available that explains how low temperature limits plant growth, the seasonal mechanisms that promote growth in response to increasing spring temperatures but restrict growth later in the season are only partially understood. Here, we assess the available knowledge of the physiological and signaling processes that determine growth, including hormonal effects, on cellular growth and on carbohydrate metabolism. Using data for grass growth in Ireland, we identify environmental factors that limit growth at different times of the year. Ideas are proposed how developmental factors, e.g., epigenetic changes, can lead to seasonality of the growth response to temperature. We also discuss perspectives for modeling grass growth and breeding to improve grassland productivity in a changing climate.
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Affiliation(s)
- Astrid Wingler
- School of Biological, Earth and Environmental Sciences, University College Cork, CorkIreland
| | - Deirdre Hennessy
- Teagasc-The Agriculture and Food Development Authority, Moorepark Animal & Grassland Research and Innovation CentreFermoy, Ireland
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Bode R, Ivanov AG, Hüner NPA. Global transcriptome analyses provide evidence that chloroplast redox state contributes to intracellular as well as long-distance signalling in response to stress and acclimation in Arabidopsis. PHOTOSYNTHESIS RESEARCH 2016; 128:287-312. [PMID: 27021769 DOI: 10.1007/s11120-016-0245-y] [Citation(s) in RCA: 7] [Impact Index Per Article: 0.9] [Reference Citation Analysis] [Abstract] [Key Words] [MESH Headings] [Track Full Text] [Subscribe] [Scholar Register] [Received: 08/04/2015] [Accepted: 03/10/2016] [Indexed: 05/03/2023]
Abstract
Global transcriptome analyses were used to assess the interactive effects of short-term stress versus long-term acclimation to high light (HL), low temperature (LT) and excitation pressure in Arabidopsis. Microarray analyses indicated that exposure to stress resulted in two times as many modulated transcripts in both, high-light-treated and low-temperature-treated plants, compared to plants that were fully acclimated to either one of these conditions. We showed that 10.9 % of all transcripts were regulated in the same way by both stress conditions, and hence, were categorized as excitation pressure regulated, rather than regulated by either high-light or low-temperature stress per se. This group of chloroplast redox-sensitive genes included various photosynthetic genes as well as genes known to be associated with cold acclimation (cbf3, cor15A, cor15B) and gibberellic acid (GA) metabolism and signalling (ga2ox1, gai). Chemical inhibition of the photosynthetic electron transport by either DCMU or DBMIB indicated that although the plastoquinone pool contributes significantly to redox regulation of the transcriptome (8.6 %), it appears that PSI represents the major source of redox signals (89 %), whereas PSII appears to contribute only 3.1 %. A comparison of the gene expression profiles between stress and acclimated plants indicated that 10 % of the genes induced by a short, 1-h stress were also associated with long-term acclimation to high excitation pressure. This included the APETALA2/ETHYLENE-RESPONSIVE-BINDING PROTEIN family, the MYB domain- and MYB-related transcription factor family as well as the GRAS transcription factor family important in GA signalling confirming that acclimation to stress is a time-nested phenomenon. We suggest that acclimation to photosynthetic redox imbalance extends beyond the chloroplast and the leaf cell to systemic ROS signalling. This is discussed in terms of the control of plant phenotype through regulation of the nuclear encoded cbf regulon and GA metabolism.
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Affiliation(s)
- Rainer Bode
- Department of Biology and The Biotron Centre for Experimental Climate Change Research, Western University, London, ON, N6A 5B7, Canada
- Department of Biology, Chemistry and Pharmacy, Institute of Biology - Physiology of Plants, Freie Universität Berlin, Königin-Luise-Straße 12-16, 14195, Berlin, Germany
| | - Alexander G Ivanov
- Department of Biology and The Biotron Centre for Experimental Climate Change Research, Western University, London, ON, N6A 5B7, Canada
| | - Norman P A Hüner
- Department of Biology and The Biotron Centre for Experimental Climate Change Research, Western University, London, ON, N6A 5B7, Canada.
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