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Xu H, Hassan MA, Sun D, Wu Z, Jiang G, Liu B, Ni Q, Yang W, Fang H, Li J, Chen X. Effects of Low Temperature Stress on Source-Sink Organs in Wheat and Phosphorus Mitigation Strategies. FRONTIERS IN PLANT SCIENCE 2022; 13:807844. [PMID: 35222472 PMCID: PMC8873184 DOI: 10.3389/fpls.2022.807844] [Citation(s) in RCA: 0] [Impact Index Per Article: 0] [Reference Citation Analysis] [Abstract] [Key Words] [Grants] [Track Full Text] [Figures] [Subscribe] [Scholar Register] [Received: 11/02/2021] [Accepted: 01/11/2022] [Indexed: 06/14/2023]
Abstract
The 21st century presents many challenges to mankind, including climate change, fast growing human population, and serious concerns over food security. Wheat is a leading cereal crop that largely fulfills the global food needs. Low temperature stress accompanied by nutrient-starved soils is badly disrupting the source-sink relationship of wheat, thus causing an acute decline in final yield and deteriorating the grain quality. This review paper aimed to understand how low temperature stress affects wheat source-sink organs (i.e., leaves, roots, and spikes) and how phosphorus application reliefs in alleviating its harmful consequences. Also, we discussed mitigation strategies to enhance wheat capacity to adapt to varying temperature extremes and made rational recommendations based on modern agronomic and breeding approaches. Therefore, this study is likely to establish a solid foundation for improving the tolerance to low temperature stress and to improve its phosphorus utilization efficiency in wheat.
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Affiliation(s)
- Hui Xu
- College of Agronomy, Anhui Agricultural University, Hefei, China
| | | | - Dongyue Sun
- College of Agronomy, Anhui Agricultural University, Hefei, China
| | - Zhaochen Wu
- College of Agronomy, Anhui Agricultural University, Hefei, China
| | - Gang Jiang
- College of Agronomy, Anhui Agricultural University, Hefei, China
| | - Binbin Liu
- College of Agronomy, Anhui Agricultural University, Hefei, China
| | - Qianqian Ni
- College of Agronomy, Anhui Agricultural University, Hefei, China
| | - Wenkang Yang
- College of Agronomy, Anhui Agricultural University, Hefei, China
| | - Hao Fang
- College of Agronomy, Anhui Agricultural University, Hefei, China
| | - Jincai Li
- College of Agronomy, Anhui Agricultural University, Hefei, China
- Jiangsu Collaborative Innovation Centre for Modern Crop Production, Nanjing, China
| | - Xiang Chen
- College of Agronomy, Anhui Agricultural University, Hefei, China
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Abiotic Stress and Belowground Microbiome: The Potential of Omics Approaches. Int J Mol Sci 2022; 23:ijms23031091. [PMID: 35163015 PMCID: PMC8835006 DOI: 10.3390/ijms23031091] [Citation(s) in RCA: 4] [Impact Index Per Article: 2.0] [Reference Citation Analysis] [Abstract] [Track Full Text] [Download PDF] [Figures] [Journal Information] [Subscribe] [Scholar Register] [Received: 12/17/2021] [Revised: 01/11/2022] [Accepted: 01/17/2022] [Indexed: 02/06/2023] Open
Abstract
Nowadays, the worldwide agriculture is experiencing a transition process toward more sustainable production, which requires the reduction of chemical inputs and the preservation of microbiomes’ richness and biodiversity. Plants are no longer considered as standalone entities, and the future of agriculture should be grounded on the study of plant-associated microorganisms and all their potentiality. Moreover, due to the climate change scenario and the resulting rising incidence of abiotic stresses, an innovative and environmentally friendly technique in agroecosystem management is required to support plants in facing hostile environments. Plant-associated microorganisms have shown a great attitude as a promising tool to improve agriculture sustainability and to deal with harsh environments. Several studies were carried out in recent years looking for some beneficial plant-associated microbes and, on the basis of them, it is evident that Actinomycetes and arbuscular mycorrhizal fungi (AMF) have shown a considerable number of positive effects on plants’ fitness and health. Given the potential of these microorganisms and the effects of climate change, this review will be focused on their ability to support the plant during the interaction with abiotic stresses and on multi-omics techniques which can support researchers in unearthing the hidden world of plant–microbiome interactions. These associated microorganisms can increase plants’ endurance of abiotic stresses through several mechanisms, such as growth-promoting traits or priming-mediated stress tolerance. Using a multi-omics approach, it will be possible to deepen these mechanisms and the dynamic of belowground microbiomes, gaining fundamental information to exploit them as staunch allies and innovative weapons against crop abiotic enemies threatening crops in the ongoing global climate change context.
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Kaur Dhaliwal L, Gannaban RB, Shrestha A, Shim J, Kaur Mangat P, Singleton JJ, Angeles‐Shim RB. Integrated morpho-biochemical and transcriptome analyses reveal multidimensional response of upland cotton ( Gossypium hirsutum L.) to low temperature stress during seedling establishment. PLANT-ENVIRONMENT INTERACTIONS (HOBOKEN, N.J.) 2021; 2:290-302. [PMID: 37284178 PMCID: PMC10168043 DOI: 10.1002/pei3.10067] [Citation(s) in RCA: 4] [Impact Index Per Article: 1.3] [Reference Citation Analysis] [Abstract] [Key Words] [Grants] [Track Full Text] [Figures] [Subscribe] [Scholar Register] [Received: 09/02/2021] [Revised: 10/28/2021] [Accepted: 11/04/2021] [Indexed: 06/08/2023]
Abstract
Cotton is a tropical/subtropical crop and is innately susceptible to cold. Using an approach that integrates morphological, biochemical, and transcriptome analyses, the study aimed to understand the molecular underpinnings of phenotypic adjustments in cotton seedlings under cold stress. Exposure of six cotton accessions to 15°C during the seedling stage significantly reduced chlorophyll content, stomatal conductance, plant height, and biomass, but increased malondialdehyde and proline production. Comparative transcriptome profiling of the cold-sensitive accession SA 3781 grown under low and normal temperatures showed the upregulation of genes related to the production of reactive oxygen species (ROS) under cold stress. Despite a similar upregulation of genes encoding metabolites that can scavenge ROS and provide osmoprotection for the cell, the stressed plants still exhibited oxidative stress in terms of lipid peroxidation. This may be due in part to the upregulation of abscisic acid synthesis genes and downregulation of chlorophyll synthesis genes effecting lower stomatal conductance and chlorophyll contents, respectively. Additionally, stomatal closure which is required to avoid the cooling effect and dehydration under cold conditions may have contributed in reducing the net photosynthetic rates in plants exposed to low temperature. These findings provide an insight into the expression of key genes regulating the phenotypic changes observed in cotton in response to cold stress.
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Affiliation(s)
- Lakhvir Kaur Dhaliwal
- Department of Plant and Soil ScienceCollege of Agricultural Sciences and Natural ResourcesTexas Tech UniversityLubbockTexasUSA
| | - Ritchel B. Gannaban
- Department of Plant and Soil ScienceCollege of Agricultural Sciences and Natural ResourcesTexas Tech UniversityLubbockTexasUSA
- Present address:
Department of Nutritional SciencesCollege of Human SciencesTexas Tech UniversityLubbockTexasUSA
| | - Avinash Shrestha
- Department of Plant and Soil ScienceCollege of Agricultural Sciences and Natural ResourcesTexas Tech UniversityLubbockTexasUSA
| | - Junghyun Shim
- Department of Plant and Soil ScienceCollege of Agricultural Sciences and Natural ResourcesTexas Tech UniversityLubbockTexasUSA
- Present address:
Olam International LimitedNasarawaNigeria
| | - Puneet Kaur Mangat
- Department of Plant and Soil ScienceCollege of Agricultural Sciences and Natural ResourcesTexas Tech UniversityLubbockTexasUSA
| | - Joshua J. Singleton
- Department of Plant and Soil ScienceCollege of Agricultural Sciences and Natural ResourcesTexas Tech UniversityLubbockTexasUSA
- Present address:
College of Agriculture, Food and EnvironmentUniversity of KentuckyLexingtonKentuckyUSA
| | - Rosalyn B. Angeles‐Shim
- Department of Plant and Soil ScienceCollege of Agricultural Sciences and Natural ResourcesTexas Tech UniversityLubbockTexasUSA
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Gill RA, Ahmar S, Ali B, Saleem MH, Khan MU, Zhou W, Liu S. The Role of Membrane Transporters in Plant Growth and Development, and Abiotic Stress Tolerance. Int J Mol Sci 2021; 22:12792. [PMID: 34884597 PMCID: PMC8657488 DOI: 10.3390/ijms222312792] [Citation(s) in RCA: 15] [Impact Index Per Article: 5.0] [Reference Citation Analysis] [Abstract] [Key Words] [MESH Headings] [Grants] [Track Full Text] [Download PDF] [Figures] [Journal Information] [Subscribe] [Scholar Register] [Received: 10/10/2021] [Revised: 11/18/2021] [Accepted: 11/22/2021] [Indexed: 11/16/2022] Open
Abstract
The proteins of membrane transporters (MTs) are embedded within membrane-bounded organelles and are the prime targets for improvements in the efficiency of water and nutrient transportation. Their function is to maintain cellular homeostasis by controlling ionic movements across cellular channels from roots to upper plant parts, xylem loading and remobilization of sugar molecules from photosynthesis tissues in the leaf (source) to roots, stem and seeds (sink) via phloem loading. The plant's entire source-to-sink relationship is regulated by multiple transporting proteins in a highly sophisticated manner and driven based on different stages of plant growth and development (PG&D) and environmental changes. The MTs play a pivotal role in PG&D in terms of increased plant height, branches/tiller numbers, enhanced numbers, length and filled panicles per plant, seed yield and grain quality. Dynamic climatic changes disturbed ionic balance (salt, drought and heavy metals) and sugar supply (cold and heat stress) in plants. Due to poor selectivity, some of the MTs also uptake toxic elements in roots negatively impact PG&D and are later on also exported to upper parts where they deteriorate grain quality. As an adaptive strategy, in response to salt and heavy metals, plants activate plasma membranes and vacuolar membrane-localized MTs that export toxic elements into vacuole and also translocate in the root's tips and shoot. However, in case of drought, cold and heat stresses, MTs increased water and sugar supplies to all organs. In this review, we mainly review recent literature from Arabidopsis, halophytes and major field crops such as rice, wheat, maize and oilseed rape in order to argue the global role of MTs in PG&D, and abiotic stress tolerance. We also discussed gene expression level changes and genomic variations within a species as well as within a family in response to developmental and environmental cues.
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Affiliation(s)
- Rafaqat Ali Gill
- Key Laboratory of Biology and Genetic Improvement of Oil Crops, The Ministry of Agriculture and Rural Affairs, Oil Crops Research Institute of Chinese Academy of Agricultural Sciences, Wuhan 430062, China;
| | - Sunny Ahmar
- College of Plant Science and Technology, Huazhong Agricultural University, Wuhan 430070, China; (S.A.); (M.H.S.)
| | - Basharat Ali
- Department of Agronomy, University of Agriculture, Faisalabad 38040, Pakistan;
| | - Muhammad Hamzah Saleem
- College of Plant Science and Technology, Huazhong Agricultural University, Wuhan 430070, China; (S.A.); (M.H.S.)
| | - Muhammad Umar Khan
- Key Laboratory of Crop Ecology and Molecular Physiology, Fujian Agriculture and Forestry University, Fuzhou 350002, China;
| | - Weijun Zhou
- Institute of Crop Science, The Ministry of Agriculture and Rural Affairs Key Laboratory of Spectroscopy Sensing, Zhejiang University, Hangzhou 310058, China;
| | - Shengyi Liu
- Key Laboratory of Biology and Genetic Improvement of Oil Crops, The Ministry of Agriculture and Rural Affairs, Oil Crops Research Institute of Chinese Academy of Agricultural Sciences, Wuhan 430062, China;
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Plasma Membrane Fluidity: An Environment Thermal Detector in Plants. Cells 2021; 10:cells10102778. [PMID: 34685758 PMCID: PMC8535034 DOI: 10.3390/cells10102778] [Citation(s) in RCA: 18] [Impact Index Per Article: 6.0] [Reference Citation Analysis] [Abstract] [Key Words] [Track Full Text] [Download PDF] [Figures] [Journal Information] [Subscribe] [Scholar Register] [Received: 08/15/2021] [Revised: 10/07/2021] [Accepted: 10/10/2021] [Indexed: 11/17/2022] Open
Abstract
The lipid matrix in cell membranes is a dynamic, bidimensional array of amphipathic molecules exhibiting mesomorphism, which contributes to the membrane fluidity changes in response to temperature fluctuation. As sessile organisms, plants must rapidly and accurately respond to environmental thermal variations. However, mechanisms underlying temperature perception in plants are poorly understood. We studied the thermal plasticity of membrane fluidity using three fluorescent probes across a temperature range of −5 to 41 °C in isolated microsomal fraction (MF), vacuolar membrane (VM), and plasma membrane (PM) vesicles from Arabidopsis plants. Results showed that PM were highly fluid and exhibited more phase transitions and hysteresis, while VM and MF lacked such attributes. These findings suggest that PM is an important cell hub with the capacity to rapidly undergo fluidity modifications in response to small changes of temperatures in ranges spanning those experienced in natural habitats. PM fluidity behaves as an ideal temperature detector: it is always present, covers the whole cell, responds quickly and with sensitivity to temperature variations, functions with a cell free-energy cost, and it is physically connected with potential thermal signal transducers to elicit a cell response. It is an optimal alternative for temperature detection selected for the plant kingdom.
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Mechanisms of Chitosan Nanoparticles in the Regulation of Cold Stress Resistance in Banana Plants. NANOMATERIALS 2021; 11:nano11102670. [PMID: 34685113 PMCID: PMC8540729 DOI: 10.3390/nano11102670] [Citation(s) in RCA: 15] [Impact Index Per Article: 5.0] [Reference Citation Analysis] [Abstract] [Key Words] [Track Full Text] [Download PDF] [Figures] [Subscribe] [Scholar Register] [Received: 08/28/2021] [Revised: 10/06/2021] [Accepted: 10/08/2021] [Indexed: 11/17/2022]
Abstract
Exposure of banana plants, one of the most important tropical and subtropical plants, to low temperatures causes a severe drop in productivity, as they are sensitive to cold and do not have a strong defense system against chilling. Therefore, this study aimed to improve the growth and resistance to cold stress of banana plants using foliar treatments of chitosan nanoparticles (CH-NPs). CH-NPs produced by nanotechnology have been used to enhance tolerance and plant growth under different abiotic stresses, e.g., salinity and drought; however, there is little information available about their effects on banana plants under cold stress. In this study, banana plants were sprayed with four concentrations of CH-NPs—i.e., 0, 100, 200, and 400 mg L−1 of deionized water—and a group that had not been cold stressed or undergone CH-NP treatment was used as control. Banana plants (Musa acuminata var. Baxi) were grown in a growth chamber and exposed to cold stress (5 °C for 72 h). Foliar application of CH-NPs caused significant increases (p < 0.05) in most of the growth parameters and in the nutrient content of the banana plants. Spraying banana plants with CH-NPs (400 mg L−1) increased the fresh and dry weights by 14 and 41%, respectively, compared to the control. A positive correlation was found between the foliar application of CH-NPs, on the one hand, and photosynthesis pigments and antioxidant enzyme activities on the other. Spraying banana plants with CH-NPs decreased malondialdehyde (MDA) and reactive oxygen species (ROS), i.e., hydrogen peroxide (H2O2), hydroxyl radicals (•OH), and superoxide anions (O2•−). CH-NPs (400 mg L−1) decreased MDA, H2O2, •OH, and O2•− by 33, 33, 40, and 48%, respectively, compared to the unsprayed plants. We hypothesize that CH-NPs increase the efficiency of banana plants in the face of cold stress by reducing the accumulation of reactive oxygen species and, in consequence, the degree of oxidative stress. The accumulation of osmoprotectants (soluble carbohydrates, proline, and amino acids) contributed to enhancing the cold stress tolerance in the banana plants. Foliar application of CH-NPs can be used as a sustainable and economically feasible approach to achieving cold stress tolerance.
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Epigenetic control of abiotic stress signaling in plants. Genes Genomics 2021; 44:267-278. [PMID: 34515950 DOI: 10.1007/s13258-021-01163-3] [Citation(s) in RCA: 9] [Impact Index Per Article: 3.0] [Reference Citation Analysis] [Abstract] [Key Words] [Track Full Text] [Journal Information] [Subscribe] [Scholar Register] [Received: 07/28/2021] [Accepted: 09/02/2021] [Indexed: 10/20/2022]
Abstract
BACKGROUND Although plants may be regularly exposed to various abiotic stresses, including drought, salt, cold, heat, heavy metals, and UV-B throughout their lives, it is not possible to actively escape from such stresses due to the immobile nature of plants. To overcome adverse environmental stresses, plants have developed adaptive systems that allow appropriate responses to diverse environmental cues; such responses can be achieved by fine-tuning or controlling genetic and epigenetic regulatory systems. Epigenetic mechanisms such as DNA or histone modifications and modulation of chromatin accessibility have been shown to regulate the expression of stress-responsive genes in struggles against abiotic stresses. OBJECTIVE Herein, the current progress in elucidating the epigenetic regulation of abiotic stress signaling in plants has been summarized in order to further understand the systems plants utilize to effectively respond to abiotic stresses. METHODS This review focuses on the action mechanisms of various components that epigenetically regulate plant abiotic stress responses, mainly in terms of DNA methylation, histone methylation/acetylation, and chromatin remodeling. CONCLUSIONS This review can be considered a basis for further research into understanding the epigenetic control system for abiotic stress responses in plants. Moreover, the knowledge of such systems can be effectively applied in developing novel methods to generate abiotic stress resistant crops.
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Amin B, Atif MJ, Wang X, Meng H, Ghani MI, Ali M, Ding Y, Li X, Cheng Z. Effect of low temperature and high humidity stress on physiology of cucumber at different leaf stages. PLANT BIOLOGY (STUTTGART, GERMANY) 2021; 23:785-796. [PMID: 33900017 DOI: 10.1111/plb.13276] [Citation(s) in RCA: 13] [Impact Index Per Article: 4.3] [Reference Citation Analysis] [Abstract] [Key Words] [MESH Headings] [Track Full Text] [Subscribe] [Scholar Register] [Received: 01/29/2021] [Accepted: 04/18/2021] [Indexed: 06/12/2023]
Abstract
Low temperature (LT) and high humidity (HH) are important environmental factors in greenhouses and plastic tunnels during the cold season, as they hamper plant growth and development. Here, we studied the effect of LT (day/night: 9/5 °C, 25/18 °C as control) and HH (95%, 80% as control) on young cucumber plants at the 2, 4 or 6 leaf stages. LT+HH stress resulted in a decline in shoot, root and total fresh and dry weights, and decreased Pn , gs , Tr , Fv /Fm , qP, ETR and chlorophyll, and increased MDA, H2 O2 , O2 - , NPQ and Ci as compared to the control at the 2 leaf stage. SOD, POD, CAT, APX and GR were upregulated under LT+HH stress as compared to the control at the 6 leaf stage. ABA and JA increased under LT+HH stress as compared to the control at the 6 leaf stage, while IAA and GA decreased under LT+HH stress as compared to the control at the 2 leaf stage. Our results show that LT+HH stress affects young cucumber plant photosynthetic efficiency, PSII activity, antioxidant defence system, ROS and hormone profile. Plants at the 6 leaf stage were more tolerant than at the 2 and 4 leaf stages under stress conditions.
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Affiliation(s)
- B Amin
- College of Horticulture, Northwest A&F University, Yangling, 71210, China
| | - M J Atif
- College of Horticulture, Northwest A&F University, Yangling, 71210, China
- Horticultural Research Institute, National Agricultural Research Centre, Islamabad, 44000, Pakistan
| | - X Wang
- College of Horticulture, Northwest A&F University, Yangling, 71210, China
| | - H Meng
- College of Horticulture, Northwest A&F University, Yangling, 71210, China
| | - M I Ghani
- College of Horticulture, Northwest A&F University, Yangling, 71210, China
| | - M Ali
- College of Horticulture, Northwest A&F University, Yangling, 71210, China
| | - Y Ding
- College of Horticulture, Northwest A&F University, Yangling, 71210, China
| | - X Li
- Tianjin Kerun Cucumber Research Institute, Tianjin, 300192, China
| | - Z Cheng
- College of Horticulture, Northwest A&F University, Yangling, 71210, China
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Fd Martini L, Roma-Burgos N, Tseng TM, V Fipke M, A Noldin J, A de Avila L. Acclimation to cold stress reduces injury from low temperature and bispyribac-sodium on rice. PEST MANAGEMENT SCIENCE 2021; 77:4016-4025. [PMID: 33896105 DOI: 10.1002/ps.6425] [Citation(s) in RCA: 0] [Impact Index Per Article: 0] [Reference Citation Analysis] [Abstract] [Key Words] [MESH Headings] [Track Full Text] [Subscribe] [Scholar Register] [Received: 11/25/2019] [Revised: 04/05/2021] [Accepted: 04/25/2021] [Indexed: 06/12/2023]
Abstract
BACKGROUND In subtropical areas, early planting exposes rice seedlings to cold stress, impairing seedling growth and making them more vulnerable to other stresses including herbicide injury. The objectives of this work were: to evaluate the effect of cold stress on bispyribac-sodium selectivity in rice; to determine the mechanisms of cold tolerance in sensitive ('Epagri 109') and tolerant ('IRGA 424') rice cultivars; and to ascertain that cold acclimatization influences bispyribac-sodium selectivity in rice. RESULTS Prolonged cold stress caused high lipid peroxidation, increased rice injury, and stunted growth. Short-term acclimation with cold stress reduced rice injury with bispyribac-sodium. Total phenols were upregulated in rice exposed to cold stress. Prolonged cold stress increased the superoxide dismutase and catalase activity in IRGA 424. Antioxidant activity was higher in the cold-tolerant than in the cold-sensitive cultivar. Only catalase activity was responsive to bispyribac-sodium. OsRAN2, OsGSTL2, and CYP72A21 were upregulated by cold and herbicide stress in both cultivars. OsGSTL2 was upregulated more in IRGA 424 than in Epagri 109. OsFAD8 was upregulated in cold-sensitive rice exposed to short-duration cold stress but was not responsive to bispyribac-sodium. CONCLUSION Cold stress reduces bispyribac-sodium selectivity in rice. Short-term acclimation to cold stress reduces the effect of cold stress and enhances bispyribac-sodium selectivity. The tolerance of rice (IRGA 424) to cold stress is due to differential induction of protection genes CYP72A21 and OsGSTL2 associated with herbicide metabolism, together with the accumulation of total phenols and higher activity of antioxidant enzymes.
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Affiliation(s)
- Luiz Fd Martini
- Crop Protection Discovery & Development Department, Corteva Agriscience, Barueri, SP, Brazil
- Crop Protection Department, Federal University of Pelotas - UFPel, Pelotas, RS, Brazil
| | - Nilda Roma-Burgos
- Department of Crop, Soil and Environmental Sciences, University of Arkansas, Fayetteville, AR, USA
| | - Te-Ming Tseng
- Department of Crop, Soil and Environmental Sciences, University of Arkansas, Fayetteville, AR, USA
- Department of Plant and Soil Sciences, Mississippi State University, Starkville, MS, USA
| | - Marcus V Fipke
- Crop Protection Department, Federal University of Pelotas - UFPel, Pelotas, RS, Brazil
| | - José A Noldin
- Institution for Agricultural Research and Rural Extension of Santa Catarina State/Itajaí Experimental Station - Epagri, Itajaí, SC, Brazil
| | - Luis A de Avila
- Crop Protection Department, Federal University of Pelotas - UFPel, Pelotas, RS, Brazil
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Phenolics composition and contents, as the key quality parameters of table grapes, may be influenced obviously and differently in response to short-term high temperature. Lebensm Wiss Technol 2021. [DOI: 10.1016/j.lwt.2021.111791] [Citation(s) in RCA: 5] [Impact Index Per Article: 1.7] [Reference Citation Analysis] [Track Full Text] [Journal Information] [Subscribe] [Scholar Register] [Indexed: 11/22/2022]
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Chen S, Qiu G. Overexpression of seagrass DnaJ gene ZjDjB1 enhances the thermotolerance of transgenic arabidopsis thaliana. PHYSIOLOGY AND MOLECULAR BIOLOGY OF PLANTS : AN INTERNATIONAL JOURNAL OF FUNCTIONAL PLANT BIOLOGY 2021; 27:2043-2055. [PMID: 34629777 PMCID: PMC8484434 DOI: 10.1007/s12298-021-01063-6] [Citation(s) in RCA: 1] [Impact Index Per Article: 0.3] [Reference Citation Analysis] [Abstract] [Key Words] [Grants] [Track Full Text] [Subscribe] [Scholar Register] [Received: 02/22/2021] [Revised: 09/03/2021] [Accepted: 09/07/2021] [Indexed: 05/06/2023]
Abstract
Seagrass meadows are one of the most important marine resources that grow along the coast. They provide habitat and a food source for animals. They also protect the coast, fix sediment and purify seawater. In the current period of global climate change, anomalies in coastal water temperatures are increasing. A sudden increase in water temperature owing to a heat wave can have a profound effect on seagrass. Zostera japonica is a type of intertidal seagrasses, which is exposed to the air at low tide. High temperatures in the summer often lead to a decline in seagrass meadows. DnaJ proteins, also known as J proteins, are a family of conserved chaperone proteins. They are designated as J proteins because they contain a highly conserved J domain. They function as chaperones of heat shock proteins in organisms. In this study, the role of DnaJ protein (ZjDjB1) of Z. japonica under heat stress was studied. ZjDjB1 was localized to the cytoplasm and nucleus. The overexpression of ZjDjB1 in Arabidopsis thaliana results in an increase in thermotolerance and a decrease in the accumulation of reactive oxygen species and also a reduction in membrane damage. ZjDjB1 may achieve this goal by maintaining a low activity of proteolytic enzymes.
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Affiliation(s)
- Siting Chen
- Guangxi Key Lab of Mangrove Conservation and Utilization, Guangxi Mangrove Research Center, Guangxi Academy of Sciences, Beihai, 536007 Guangxi China
| | - Guanglong Qiu
- Guangxi Key Lab of Mangrove Conservation and Utilization, Guangxi Mangrove Research Center, Guangxi Academy of Sciences, Beihai, 536007 Guangxi China
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Hassan MA, Xiang C, Farooq M, Muhammad N, Yan Z, Hui X, Yuanyuan K, Bruno AK, Lele Z, Jincai L. Cold Stress in Wheat: Plant Acclimation Responses and Management Strategies. FRONTIERS IN PLANT SCIENCE 2021; 12:676884. [PMID: 34305976 PMCID: PMC8299469 DOI: 10.3389/fpls.2021.676884] [Citation(s) in RCA: 55] [Impact Index Per Article: 18.3] [Reference Citation Analysis] [Abstract] [Key Words] [Track Full Text] [Subscribe] [Scholar Register] [Received: 03/06/2021] [Accepted: 05/28/2021] [Indexed: 05/02/2023]
Abstract
Unpredicted variability in temperature is associated with frequent extreme low-temperature events. Wheat is a leading crop in fulfilling global food requirements. Climate-driven temperature extremes influence the vegetative and reproductive growth of wheat, followed by a decrease in yield. This review describes how low temperature induces a series of modifications in the morphophysiological, biochemical, and molecular makeup of wheat and how it is perceived. To cope with these modifications, crop plants turn on their cold-tolerance mechanisms, characterized by accumulating soluble carbohydrates, signaling molecules, and cold tolerance gene expressions. The review also discusses the integrated management approaches to enhance the performance of wheat plants against cold stress. In this review, we propose strategies for improving the adaptive capacity of wheat besides alleviating risks of cold anticipated with climate change.
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Affiliation(s)
| | - Chen Xiang
- School of Agronomy, Anhui Agricultural University, Hefei, China
| | - Muhammad Farooq
- Department of Plant Sciences, College of Agricultural and Marine Sciences, Sultan Qaboos University, Muscat, Oman
| | - Noor Muhammad
- Agronomy (Forage Production) Section, Ayub Agricultural Research Institute, Faisalabad, Pakistan
| | - Zhang Yan
- School of Agronomy, Anhui Agricultural University, Hefei, China
| | - Xu Hui
- School of Agronomy, Anhui Agricultural University, Hefei, China
| | - Ke Yuanyuan
- School of Agronomy, Anhui Agricultural University, Hefei, China
| | | | - Zhang Lele
- School of Agronomy, Anhui Agricultural University, Hefei, China
| | - Li Jincai
- School of Agronomy, Anhui Agricultural University, Hefei, China
- Jiangsu Collaborative Innovation Centre for Modern Crop Production, Nanjing, China
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Phosphoinositide-specific phospholipase C gene involved in heat and drought tolerance in wheat (Triticum aestivum L.). Genes Genomics 2021; 43:1167-1177. [PMID: 34138415 DOI: 10.1007/s13258-021-01123-x] [Citation(s) in RCA: 1] [Impact Index Per Article: 0.3] [Reference Citation Analysis] [Abstract] [Key Words] [Track Full Text] [Journal Information] [Subscribe] [Scholar Register] [Received: 01/14/2021] [Accepted: 06/08/2021] [Indexed: 10/21/2022]
Abstract
BACKGROUND Phosphoinositide-specific phospholipase C proteins mediate environmental stress responses in many plants. However, the potential of PI-PLC genes involved with abiotic stress tolerance in wheat remains un-explored. OBJECTIVE To study TaPLC1 genetic relation with wheat drought and heat resistance. METHODS The seedlings were treated with PI-PLC inhibitor U73122 at the single leaf stage. The seedlings were treated with drought and heat stress at the two leaf stage, and some physiological indexes and the expression profile of TaPLC1 gene were determined. And the TaPLC1 overexpression vector was transferred to Arabidopsis and selected to T3 generation for drought and heat stress treatment. RESULTS After 4 h of drought and heat stress, the SOD activity, MDA and soluble sugar content of the two cultivars with inhibitor were higher than those without inhibitor, the chlorophyll content decreased. CS seedlings showed significant wilting phenomenon, and TAM107 showed slight wilting. After the elimination of drought and heat stress, all seedling wilting gradually recovered, while the leaf tips of the two varieties treated with inhibitors began to wilt and turn yellow, which was more significant 5 days after the drought and heat stress, while the degree of spring wilting and yellow in CS was earlier than that in TAM107. The expression patterns of TaPLC1 gene were different in the two cultivars, but the expression levels reached the maximum at 30 min of heat stress. The change of TaPLC1 expression in TAM107 without inhibitor treatment was significantly greater than that in CS. The expression level of TaPLC1 in the two cultivars under stress was significantly different between the two cultivars treated with inhibitor and untreated, and was lower than that of the normal plants under normal conditions. These results indicated that inhibition of TaPLC1 gene expression could enhance the sensitivity of seedlings to stress. In Arabidopsis, the root lengths of transgenic and wild-type seedlings were shortened after drought stress treatment, but the root lengths of transgenic plants decreased slightly. And the expression of TaPLC1 gene was significantly increased after drought and heat stress. This indicated that overexpression of TaPLC1 improved drought resistance of Arabidopsis. CONCLUSIONS The results of this study suggest that TaPLC1 may be involved in the regulation mechanism of drought and heat stress in wheat.
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Moradpour M, Abdullah SNA, Namasivayam P. The Impact of Heat Stress on Morpho-Physiological Response and Expression of Specific Genes in the Heat Stress-Responsive Transcriptional Regulatory Network in Brassica oleracea. PLANTS (BASEL, SWITZERLAND) 2021; 10:1064. [PMID: 34073267 PMCID: PMC8230129 DOI: 10.3390/plants10061064] [Citation(s) in RCA: 3] [Impact Index Per Article: 1.0] [Reference Citation Analysis] [Abstract] [Key Words] [Grants] [Track Full Text] [Download PDF] [Figures] [Subscribe] [Scholar Register] [Received: 02/02/2021] [Revised: 04/07/2021] [Accepted: 04/13/2021] [Indexed: 11/16/2022]
Abstract
Knowledge of heat-tolerant/sensitive cultivars based on morpho-physiological indicators and an understanding of the action and interaction of different genes in the molecular network are critical for genetic improvement. To screen these indicators, the physiological performance of two different varieties of white and red cabbages (B. oleracea var. capitate f. alba and f. rubra, respectively) under heat stress (HS) and non-stress (NS) was evaluated. Cultivars that showed considerable cell membrane thermostability and less reduction in chlorophyll content with better head formation were categorized as the heat-tolerant cultivars (HTC), while those with reduction in stomatal conductance, higher reduction incurred in chlorophyll and damage to thylakoid membranes are categorized as the heat-sensitive cultivars (HSC). Expression profiling of key genes in the HS response network, including BoHSP70 (HEAT SHOCK PROTEIN 70), BoSCL13 (SCARECROW-LIKE 13) and BoDPB3-1 (transcriptional regulator DNA POLYMERASE II SUBUNIT B3-1 (DPB3-1))/NUCLEAR FACTOR Y SUBUNIT C10 (NF-YC10), were evaluated in all cultivars under HS compared to NS plants, which showed their potential as molecular indicators to differentiate HTC from HSC. Based on the results, the morphophysiological and molecular indicators are applicable to cabbage cultivars for differentiating HTC from HSC, and potential target genes for genome editing were identified for enhancing food security in the warmer regions of the world.
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Affiliation(s)
- Mahdi Moradpour
- Laboratory of Agronomy and Sustainable Crop Protection, Institute of Plantation Studies, Universiti Putra Malaysia, Serdang 43400 UPM, Selangor, Malaysia;
| | - Siti Nor Akmar Abdullah
- Laboratory of Agronomy and Sustainable Crop Protection, Institute of Plantation Studies, Universiti Putra Malaysia, Serdang 43400 UPM, Selangor, Malaysia;
- Department of Agriculture Technology, Faculty of Agriculture, Universiti Putra Malaysia, Serdang 43400 UPM, Selangor, Malaysia
| | - Parameswari Namasivayam
- Department of Cell and Molecular Biology, Faculty of Biotechnology and Biomolecular Science, University Putra Malaysia, Serdang 43400 UPM, Selangor, Malaysia;
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Morcillo RJL, Manzanera M. The Effects of Plant-Associated Bacterial Exopolysaccharides on Plant Abiotic Stress Tolerance. Metabolites 2021; 11:337. [PMID: 34074032 PMCID: PMC8225083 DOI: 10.3390/metabo11060337] [Citation(s) in RCA: 78] [Impact Index Per Article: 26.0] [Reference Citation Analysis] [Abstract] [Key Words] [Grants] [Track Full Text] [Download PDF] [Figures] [Journal Information] [Subscribe] [Scholar Register] [Received: 04/20/2021] [Revised: 05/19/2021] [Accepted: 05/21/2021] [Indexed: 11/16/2022] Open
Abstract
Plant growth-promoting rhizobacteria (PGPR) are beneficial soil microorganisms that can stimulate plant growth and increase tolerance to biotic and abiotic stresses. Some PGPR are capable of secreting exopolysaccharides (EPS) to protect themselves and, consequently, their plant hosts against environmental fluctuations and other abiotic stresses such as drought, salinity, or heavy metal pollution. This review focuses on the enhancement of plant abiotic stress tolerance by bacterial EPS. We provide a comprehensive summary of the mechanisms through EPS to alleviate plant abiotic stress tolerance, including salinity, drought, temperature, and heavy metal toxicity. Finally, we discuss how these abiotic stresses may affect bacterial EPS production and its role during plant-microbe interactions.
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Affiliation(s)
- Rafael J L Morcillo
- Institute for Water Research, Department of Microbiology, University of Granada, 18003 Granada, Spain
| | - Maximino Manzanera
- Institute for Water Research, Department of Microbiology, University of Granada, 18003 Granada, Spain
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66
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Pei X, Zhang Y, Zhu L, Zhao D, Lu Y, Zheng J. Physiological and transcriptomic analyses characterized high temperature stress response mechanisms in Sorbus pohuashanensis. Sci Rep 2021; 11:10117. [PMID: 33980903 PMCID: PMC8115228 DOI: 10.1038/s41598-021-89418-7] [Citation(s) in RCA: 6] [Impact Index Per Article: 2.0] [Reference Citation Analysis] [Abstract] [Key Words] [MESH Headings] [Grants] [Track Full Text] [Download PDF] [Figures] [Journal Information] [Subscribe] [Scholar Register] [Received: 10/20/2020] [Accepted: 04/26/2021] [Indexed: 02/03/2023] Open
Abstract
Sorbus pohuashanensis (Hance) Hedl. is a Chinese native alpine tree species, but the problem of introducing S. pohuashanensis to low altitude areas has not been solved. In this study, we aimed to explore the molecular regulatory network of S. pohuashanensis in response to high-temperature stress using RNA-Sequencing technology and physiological and biochemical determination. Based on transcriptomic data, we obtained 1221 genes (752 up-regulated and 469 down-regulated) that were differentially expressed during 8 h 43℃ treatment and candidate genes were related to calcium signaling pathway, plant hormone signal transduction, heat shock factors, chaperones, ubiquitin mediated proteolysis, cell wall modification, ROS scavenging enzymes, detoxification and energy metabolism. The analysis of high temperature response at the physiological level and biochemical level were performed. The chlorophyll fluorescence parameters of leaf cells decreased, the content of osmotic regulators increased, and the activity of ROS scavenging enzymes decreased. The molecular regulatory network of S. pohuashanensis in response to high-temperature stress was preliminarily revealed in this study, which provides fundamental information improving introducing methods and discovering heat-tolerant genes involved in high-temperature stress in this species and provides a reference for other plants of the genus Sorbus.
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Affiliation(s)
- Xin Pei
- School of Landscape Architecture, Beijing University of Agriculture, Beijing, 102206, China
| | - Yan Zhang
- School of Landscape Architecture, Beijing University of Agriculture, Beijing, 102206, China
| | - Lingyi Zhu
- School of Landscape Architecture, Beijing University of Agriculture, Beijing, 102206, China
| | - Dongxue Zhao
- School of Landscape Architecture, Beijing University of Agriculture, Beijing, 102206, China
| | - Yizeng Lu
- Shandong Provincial Center of Forest Tree Germplasm Resources, Shandong Province, Jinan, 250102, China
| | - Jian Zheng
- School of Landscape Architecture, Beijing University of Agriculture, Beijing, 102206, China.
- Beijing Laboratory of Urban and Rural Ecological Environment, Beijing, 100083, China.
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Habermann E, Dias de Oliveira EA, Delvecchio G, Belisário R, Barreto RF, Viciedo DO, Rossingnoli NO, de Pinho Costa KA, de Mello Prado R, Gonzalez-Meler M, Martinez CA. How does leaf physiological acclimation impact forage production and quality of a warmed managed pasture of Stylosanthes capitata under different conditions of soil water availability? THE SCIENCE OF THE TOTAL ENVIRONMENT 2021; 759:143505. [PMID: 33223164 DOI: 10.1016/j.scitotenv.2020.143505] [Citation(s) in RCA: 4] [Impact Index Per Article: 1.3] [Reference Citation Analysis] [Abstract] [Key Words] [MESH Headings] [Track Full Text] [Subscribe] [Scholar Register] [Received: 08/19/2020] [Revised: 10/15/2020] [Accepted: 10/29/2020] [Indexed: 05/25/2023]
Abstract
Tropical pastures play a significant role in the global carbon cycle and are crucial for world livestock production. Despite its importance, there is a paucity of field studies that clarify how tropical pasture species will be affected by environmental changes predicted for tropical regions. Using a temperature-free air-controlled enhancement (T-FACE) system, we increased canopy temperature (+2 °C over ambient) and evaluated the effects of warming under two soil moisture conditions in a factorial design over the physiology, forage production, and forage quality of a tropical forage legume, Stylosanthes capitata. Under well-watered conditions, warming increased the PSII efficiency, net photosynthesis, and aboveground biomass accumulation, but reduced forage quality and digestibility by decreasing crude protein content and increasing lignin content. Non-irrigated conditions under ambient temperature reduced leaf water status presumably promoting the reduction in net photosynthesis, forage production, and forage quality and digestibility. Under the combination of canopy warming and non-irrigated conditions, warming mitigated the effects of reduced soil moisture on leaf photosynthesis and biomass production, but a significant interaction reduced forage quality and digestibility more than under isolated treatments of warming or non-irrigated conditions. We found a potential physiological acclimation of the tropical forage species to moderate warming when grown under rainfed or well-watered conditions. However, this acclimation was achieved due to a trade-off that reduced forage nutritional value and digestibility that may impact future animal feeding, livestock production, and would contribute to methane emissions.
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Affiliation(s)
- Eduardo Habermann
- Department of Biology, FFCLRP, University of Sao Paulo, Ribeirão Preto, São Paulo, Brazil
| | - Eduardo A Dias de Oliveira
- Ecology and Evolution, Department of Biological Sciences, University of Illinois, Chicago, IL, United States
| | - Gustavo Delvecchio
- Department of Biology, FFCLRP, University of Sao Paulo, Ribeirão Preto, São Paulo, Brazil
| | - Rafael Belisário
- Department of Biology, FFCLRP, University of Sao Paulo, Ribeirão Preto, São Paulo, Brazil
| | - Rafael Ferreira Barreto
- Department of Soils and Fertilizers, School of Agricultural and Veterinarian Sciences, Jaboticabal, São Paulo State University, São Paulo, Brazil
| | - Dilier Olivera Viciedo
- Department of Soils and Fertilizers, School of Agricultural and Veterinarian Sciences, Jaboticabal, São Paulo State University, São Paulo, Brazil
| | | | | | - Renato de Mello Prado
- Department of Soils and Fertilizers, School of Agricultural and Veterinarian Sciences, Jaboticabal, São Paulo State University, São Paulo, Brazil
| | - Miquel Gonzalez-Meler
- Ecology and Evolution, Department of Biological Sciences, University of Illinois, Chicago, IL, United States
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Yao M, Ge W, Zhou Q, Zhou X, Luo M, Zhao Y, Wei B, Ji S. Exogenous glutathione alleviates chilling injury in postharvest bell pepper by modulating the ascorbate-glutathione (AsA-GSH) cycle. Food Chem 2021; 352:129458. [PMID: 33714166 DOI: 10.1016/j.foodchem.2021.129458] [Citation(s) in RCA: 53] [Impact Index Per Article: 17.7] [Reference Citation Analysis] [Abstract] [Key Words] [Track Full Text] [Journal Information] [Subscribe] [Scholar Register] [Received: 09/09/2020] [Revised: 02/02/2021] [Accepted: 02/20/2021] [Indexed: 11/25/2022]
Abstract
We investigated the effect of exogenous glutathione (GSH) on chilling injury (CI) in postharvest bell pepper fruits stored at low temperature and explored the mechanism of this treatment from the perspective of the ascorbate-glutathione (AsA-GSH) cycle. Compared with the control, fruits treated with exogenous GSH before refrigeration displayed only slight CI symptoms and mitigated CI-induced cell damage after 10 d. Moreover, the treated peppers had lower lipid peroxidation product, H2O2, and O2- content than those did the control. Glutathione treatment enhanced the ascorbate-glutathione cycle by upregulating CaAPX1, CaGR2, CaMDHAR1, and CaDHAR1 and the antioxidant enzymes APX, GR, and MDHAR associated with the ascorbate-glutathione cycle. Glutathione treatment also increased ascorbate and glutathione concentrations. Taken together, our results showed that exogenous GSH treatment could alleviate CI in pepper fruits during cold storage by triggering the AsA-GSH cycle and improving antioxidant capacity.
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Affiliation(s)
- Miaomiao Yao
- College of Food Science, Shenyang Agricultural University, No. 120 Dongling Road, Shenhe District, Shenyang City 110866, PR China
| | - Wanying Ge
- College of Food Science, Shenyang Agricultural University, No. 120 Dongling Road, Shenhe District, Shenyang City 110866, PR China
| | - Qian Zhou
- College of Food Science, Shenyang Agricultural University, No. 120 Dongling Road, Shenhe District, Shenyang City 110866, PR China
| | - Xin Zhou
- College of Food Science, Shenyang Agricultural University, No. 120 Dongling Road, Shenhe District, Shenyang City 110866, PR China
| | - Manli Luo
- College of Food Science, Shenyang Agricultural University, No. 120 Dongling Road, Shenhe District, Shenyang City 110866, PR China
| | - Yingbo Zhao
- College of Food Science, Shenyang Agricultural University, No. 120 Dongling Road, Shenhe District, Shenyang City 110866, PR China
| | - Baodong Wei
- College of Food Science, Shenyang Agricultural University, No. 120 Dongling Road, Shenhe District, Shenyang City 110866, PR China
| | - Shujuan Ji
- College of Food Science, Shenyang Agricultural University, No. 120 Dongling Road, Shenhe District, Shenyang City 110866, PR China.
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Cai M, Lin X, Peng J, Zhang J, Chen M, Huang J, Chen L, Sun F, Ding W, Peng C. Why Is the Invasive Plant Sphagneticola trilobata More Resistant to High Temperature than Its Native Congener? Int J Mol Sci 2021; 22:ijms22020748. [PMID: 33451068 PMCID: PMC7828476 DOI: 10.3390/ijms22020748] [Citation(s) in RCA: 2] [Impact Index Per Article: 0.7] [Reference Citation Analysis] [Abstract] [Key Words] [MESH Headings] [Download PDF] [Figures] [Journal Information] [Subscribe] [Scholar Register] [Received: 12/21/2020] [Revised: 01/07/2021] [Accepted: 01/11/2021] [Indexed: 11/16/2022] Open
Abstract
Climate change and invasive alien species threaten biodiversity. High temperature is a worrying ecological factor. Most responses of invasive plants aimed at coping with adversity are focused on the physiological level. To explore the molecular mechanisms underlying the response of an invasive plant (Sphagneticola trilobata L.) to high temperature, using a native species (Sphagneticola calendulacea L.) as the control, relevant indicators, including photosynthetic pigments, gas exchange, chlorophyll fluorescence, the antioxidant system, and related enzyme-coding genes were measured. The results showed that the leaves of S. calendulacea turned yellow, photosynthetic pigment content (Chl a, Chl b, Car, Chl) decreased, gas exchange (Pn) and chlorophyll fluorescence parameters (Fv/Fm, ΦPSII) decreased under high temperature. It was also found that high temperature caused photoinhibition and a large amount of ROS accumulated, resulting in an increase in MDA and relative conductivity. Antioxidant enzymes (including SOD, POD, CAT, and APX) and antioxidants (including flavonoids, total phenols, and carotenoids) were decreased. The qPCR results further showed that the expression of the PsbP, PsbA, and RubiscoL, SOD, POD, CAT, and APX genes was downregulated, which was consistent with the results of physiological data. Otherwise, the resistance of S. trilobata to high temperature was better than that of S. calendulacea, which made it a superior plant in the invasion area. These results further indicated that the gradual warming of global temperature will greatly accelerate the invasion area of S. trilobata.
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70
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Amari K, Huang C, Heinlein M. Potential Impact of Global Warming on Virus Propagation in Infected Plants and Agricultural Productivity. FRONTIERS IN PLANT SCIENCE 2021; 12:649768. [PMID: 33868349 PMCID: PMC8045756 DOI: 10.3389/fpls.2021.649768] [Citation(s) in RCA: 20] [Impact Index Per Article: 6.7] [Reference Citation Analysis] [Abstract] [Key Words] [Track Full Text] [Subscribe] [Scholar Register] [Received: 01/27/2021] [Accepted: 03/03/2021] [Indexed: 05/14/2023]
Abstract
The increasing pace of global warming and climate instability will challenge the management of pests and diseases of cultivated plants. Several reports have shown that increases in environmental temperature can enhance the cell-to-cell and systemic propagation of viruses within their infected hosts. These observations suggest that earlier and longer periods of warmer weather may cause important changes in the interaction between viruses and their host's plants, thus posing risks of new viral diseases and outbreaks in agriculture and the wild. As viruses target plasmodesmata (PD) for cell-to-cell spread, these cell wall pores may play yet unknown roles in the temperature-sensitive regulation of intercellular communication and virus infection. Understanding the temperature-sensitive mechanisms in plant-virus interactions will provide important knowledge for protecting crops against diseases in a warmer climate.
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71
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Zhang R, Gonze D, Hou X, You X, Goldbeter A. A Computational Model for the Cold Response Pathway in Plants. Front Physiol 2020; 11:591073. [PMID: 33250782 PMCID: PMC7674828 DOI: 10.3389/fphys.2020.591073] [Citation(s) in RCA: 4] [Impact Index Per Article: 1.0] [Reference Citation Analysis] [Abstract] [Key Words] [Track Full Text] [Download PDF] [Figures] [Journal Information] [Subscribe] [Scholar Register] [Received: 08/03/2020] [Accepted: 10/16/2020] [Indexed: 01/27/2023] Open
Abstract
Understanding the mechanism by which plants respond to cold stress and strengthen their tolerance to low temperatures is an important and challenging task in plant sciences. Experiments have established that the first step in the perception and transduction of the cold stress signal consists of a transient influx of Ca2+. This Ca2+ influx triggers the activation of a cascade of phosphorylation-dephosphorylation reactions that eventually affects the expression of C-repeat-binding factors (CBFs, notably CBF3), which were shown in many plants to control resistance to cold stress by regulating the expression of cold-regulated (COR) genes. Based on experimental observations mostly made on Arabidopsis thaliana, we build a computational model for the cold response pathway in plants, from the transduction of the cold signal via the transient influx of Ca2+ to the activation of the phosphorylation cascade leading to CBF3 expression. We explore the dynamics of this regulatory network by means of numerical simulations and compare the results with experimental observations on the dynamics of the cold response, both for the wild type and for mutants. The simulations show how, in response to cold stress, a brief Ca2+ influx, which is over in minutes, is transduced along the successive steps of the network to trigger the expression of cold response genes such as CBF3 within hours. Sometimes, instead of a single Ca2+ spike the decrease in temperature brings about a train of high-frequency Ca2+ oscillations. The model is applied to both types of Ca2+ signaling. We determine the dynamics of the network in response to a series of identical cold stresses, to account for the observation of desensitization and resensitization. The analysis of the model predicts the possibility of an oscillatory expression of CBF3 originating from the negative feedback exerted by ZAT12, a factor itself controlled by CBF3. Finally, we extend the model to incorporate the circadian control of CBF3 expression, to account for the gating of the response to cold stress by the plant circadian clock.
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Affiliation(s)
- Ruqiang Zhang
- College of Horticulture, Nanjing Agricultural University, Nanjing, China
| | - Didier Gonze
- Unité de Chronobiologie Théorique, Faculté des Sciences, Université Libre de Bruxelles (ULB), Brussels, Belgium
| | - Xilin Hou
- College of Horticulture, Nanjing Agricultural University, Nanjing, China
| | - Xiong You
- College of Sciences, Nanjing Agricultural University, Nanjing, China
| | - Albert Goldbeter
- Unité de Chronobiologie Théorique, Faculté des Sciences, Université Libre de Bruxelles (ULB), Brussels, Belgium
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Ngcala MG, Goche T, Brown AP, Chivasa S, Ngara R. Heat Stress Triggers Differential Protein Accumulation in the Extracellular Matrix of Sorghum Cell Suspension Cultures. Proteomes 2020; 8:29. [PMID: 33105781 PMCID: PMC7709130 DOI: 10.3390/proteomes8040029] [Citation(s) in RCA: 12] [Impact Index Per Article: 3.0] [Reference Citation Analysis] [Abstract] [Key Words] [Grants] [Track Full Text] [Download PDF] [Figures] [Journal Information] [Subscribe] [Scholar Register] [Received: 08/27/2020] [Revised: 10/15/2020] [Accepted: 10/19/2020] [Indexed: 01/13/2023] Open
Abstract
Plants reprogram gene expression as an adaptive response to survive high temperatures. While the identity and functions of intracellular heat stress-responsive proteins have been extensively studied, the heat response of proteins secreted to the extracellular matrix is unknown. Here, we used Sorghum bicolor, a species adapted for growth in hot climates, to investigate the extracellular heat-induced responses. When exposed to 40 C for 72 h, heat-sensitive Arabidopsis cell suspension cultures died, while ICSB338 sorghum cell cultures survived by activation of a transcriptional response characterized by the induction of HSP70 and HSP90 genes. Quantitative proteomic analysis of proteins recovered from cell culture medium revealed specific heat stress-induced protein accumulation within the sorghum secretome. Of the 265 secreted proteins identified, 31 responded to heat (2-fold change), with 84% possessing a predicted signal peptide for targeting to the classical secretory pathway. The differentially accumulated proteins have putative functions in metabolism, detoxification, and protein modifications. A germin (SORBI_3003G427700) was highly heat-inducible at both protein and gene level. Overall, our study reveals new insights into sorghum responses to heat and provides a useful resource of extracellular proteins that could serve as targets for developing thermotolerant crops. Data are available via ProteomeXchange with identifier PXD021536.
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Affiliation(s)
- Mamosa G. Ngcala
- Department of Plant Sciences, Qwaqwa campus, University of the Free State, Phuthadithjaba 9866, South Africa;
| | - Tatenda Goche
- Department of Crop Sciences, Epoch Mine Campus, Gwanda State University, Filabusi, Zimbabwe;
| | - Adrian P. Brown
- Department of Biosciences, Durham University, South Road, Durham DH1 3LE, UK; (A.P.B.); (S.C.)
| | - Stephen Chivasa
- Department of Biosciences, Durham University, South Road, Durham DH1 3LE, UK; (A.P.B.); (S.C.)
| | - Rudo Ngara
- Department of Plant Sciences, Qwaqwa campus, University of the Free State, Phuthadithjaba 9866, South Africa;
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Kiba A, Nakano M, Hosokawa M, Galis I, Nakatani H, Shinya T, Ohnishi K, Hikichi Y. Phosphatidylinositol-phospholipase C2 regulates pattern-triggered immunity in Nicotiana benthamiana. JOURNAL OF EXPERIMENTAL BOTANY 2020; 71:5027-5038. [PMID: 32412590 PMCID: PMC7410187 DOI: 10.1093/jxb/eraa233] [Citation(s) in RCA: 10] [Impact Index Per Article: 2.5] [Reference Citation Analysis] [Abstract] [Key Words] [MESH Headings] [Track Full Text] [Subscribe] [Scholar Register] [Received: 12/09/2019] [Accepted: 05/11/2020] [Indexed: 05/27/2023]
Abstract
Phospholipid signaling plays an important role in plant immune responses against phytopathogenic bacteria in Nicotiana benthamiana. Here, we isolated two phospholipase C2 (PLC2) orthologs in the N. benthamiana genome, designated as PLC2-1 and 2-2. Both NbPLC2-1 and NbPLC2-2 were expressed in most tissues and were induced by infiltration with bacteria and flg22. NbPLC2-1 and NbPLC2-2 (NbPLC2s) double-silenced plants showed a moderately reduced growth phenotype. The induction of the hypersensitive response was not affected, but bacterial growth and the appearance of bacterial wilt were accelerated in NbPLC2s-silenced plants when they were challenged with a virulent strain of Ralstonia solanacearum that was compatible with N. benthamiana. NbPLC2s-silenced plants showed reduced expression levels of NbPR-4, a marker gene for jasmonic acid signaling, and decreased jasmonic acid and jasmonoyl-L-isoleucine contents after inoculation with R. solanacearum. The induction of pathogen-associated molecular pattern (PAMP)-triggered immunity (PTI) marker genes was reduced in NbPLC2s-silenced plants after infiltration with R. solanacearum or Pseudomonas fluorescens. Accordingly, the resistance induced by flg22 was compromised in NbPLC2s-silenced plants. In addition, the expression of flg22-induced PTI marker genes, the oxidative burst, stomatal closure, and callose deposition were all reduced in the silenced plants. Thus, NbPLC2s might have important roles in pre- and post-invasive defenses, namely in the induction of PTI.
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Affiliation(s)
- Akinori Kiba
- Laboratory of Plant Pathology and Biotechnology, Faculty of Agriculture, Kochi University, Nankoku, Kochi, Japan
| | - Masahito Nakano
- Laboratory of Plant Pathology and Biotechnology, Faculty of Agriculture, Kochi University, Nankoku, Kochi, Japan
- Okayama Prefectural Technology Center for Agriculture, Forestry, and Fisheries, 7549–1 Kibichuo-cho, Kaga-gun, Okayama, Japan
| | - Miki Hosokawa
- Laboratory of Plant Pathology and Biotechnology, Faculty of Agriculture, Kochi University, Nankoku, Kochi, Japan
| | - Ivan Galis
- Institute of Plant Science and Resources, Okayama University, Okayama, Japan
| | - Hiroko Nakatani
- Institute of Plant Science and Resources, Okayama University, Okayama, Japan
| | - Tomonori Shinya
- Institute of Plant Science and Resources, Okayama University, Okayama, Japan
| | - Kouhei Ohnishi
- Laboratory of Defense in Plant–Pathogen Interactions, Research Institute of Molecular Genetics, Kochi University, Nankoku, Kochi, Japan
| | - Yasufumi Hikichi
- Laboratory of Plant Pathology and Biotechnology, Faculty of Agriculture, Kochi University, Nankoku, Kochi, Japan
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Hara M. Potential use of essential oils to enhance heat tolerance in plants. ACTA ACUST UNITED AC 2020; 75:225-231. [PMID: 32755102 DOI: 10.1515/znc-2019-0233] [Citation(s) in RCA: 3] [Impact Index Per Article: 0.8] [Reference Citation Analysis] [Abstract] [Key Words] [Track Full Text] [Journal Information] [Subscribe] [Scholar Register] [Received: 12/25/2019] [Accepted: 03/19/2020] [Indexed: 12/12/2022]
Abstract
Isothiocyanates, monoterpenes, and leaf volatiles that are components of essential oils induce the expression of heat shock protein genes in plant systems. Here, the modes of heat shock responses induced by the essential oil compounds and their heat-tolerance-enhancing activities are described. Traditionally, green manure produced from essential-oil-containing plants has been used because such manure is thought to have beneficial effects in fertilizing, allelopathic, antibacterial, and animal-repellent activities. In addition to these effects, stress (especially heat stress)-tolerance-enhancing activities can be expected. Biostimulants containing such essential oils may be able to maintain the yield and quality of crops under increasing ambient temperatures. In this review, chemicals that enhance the heat tolerance of plants are designated as heat tolerance enhancers (HTLEs). Some essential oil compounds can be categorized as HTLEs available for biostimulants.
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Affiliation(s)
- Masakazu Hara
- Research Institute of Green Science and Technology, Shizuoka University, 836 Ohya, Shizuoka, Shizuoka 422-8529, Japan, Phone: +81-54-238-5134, Fax: +81-54-238-5134
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Estravis-Barcala M, Mattera MG, Soliani C, Bellora N, Opgenoorth L, Heer K, Arana MV. Molecular bases of responses to abiotic stress in trees. JOURNAL OF EXPERIMENTAL BOTANY 2020; 71:3765-3779. [PMID: 31768543 PMCID: PMC7316969 DOI: 10.1093/jxb/erz532] [Citation(s) in RCA: 38] [Impact Index Per Article: 9.5] [Reference Citation Analysis] [Abstract] [Key Words] [MESH Headings] [Grants] [Track Full Text] [Subscribe] [Scholar Register] [Received: 09/09/2019] [Accepted: 11/25/2019] [Indexed: 05/05/2023]
Abstract
Trees are constantly exposed to climate fluctuations, which vary with both time and geographic location. Environmental changes that are outside of the physiological favorable range usually negatively affect plant performance and trigger responses to abiotic stress. Long-living trees in particular have evolved a wide spectrum of molecular mechanisms to coordinate growth and development under stressful conditions, thus minimizing fitness costs. The ongoing development of techniques directed at quantifying abiotic stress has significantly increased our knowledge of physiological responses in woody plants. However, it is only within recent years that advances in next-generation sequencing and biochemical approaches have enabled us to begin to understand the complexity of the molecular systems that underlie these responses. Here, we review recent progress in our understanding of the molecular bases of drought and temperature stresses in trees, with a focus on functional, transcriptomic, epigenetic, and population genomic studies. In addition, we highlight topics that will contribute to progress in our understanding of the plastic and adaptive responses of woody plants to drought and temperature in a context of global climate change.
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Affiliation(s)
- Maximiliano Estravis-Barcala
- Instituto Andino Patagónico de Tecnologías Biológicas y Geoambientales, (Consejo Nacional de Investigaciones Científicas y Técnicas- Universidad Nacional del Comahue), San Carlos de Bariloche, Rio Negro, Argentina
| | - María Gabriela Mattera
- Instituto de Investigaciones Forestales y Agropecuarias Bariloche (Instituto Nacional de Tecnología Agropecuaria - Consejo Nacional de Investigaciones Científicas y Técnicas), San Carlos de Bariloche, Rio Negro, Argentina
| | - Carolina Soliani
- Instituto de Investigaciones Forestales y Agropecuarias Bariloche (Instituto Nacional de Tecnología Agropecuaria - Consejo Nacional de Investigaciones Científicas y Técnicas), San Carlos de Bariloche, Rio Negro, Argentina
| | - Nicolás Bellora
- Instituto Andino Patagónico de Tecnologías Biológicas y Geoambientales, (Consejo Nacional de Investigaciones Científicas y Técnicas- Universidad Nacional del Comahue), San Carlos de Bariloche, Rio Negro, Argentina
| | - Lars Opgenoorth
- Department of Ecology, Philipps University Marburg, Marburg, Germany
- Swiss Federal Research Institute WSL, BirmensdorfSwitzerland
| | - Katrin Heer
- Department of Conservation Biology, Philipps University Marburg, Marburg Germany
| | - María Verónica Arana
- Instituto de Investigaciones Forestales y Agropecuarias Bariloche (Instituto Nacional de Tecnología Agropecuaria - Consejo Nacional de Investigaciones Científicas y Técnicas), San Carlos de Bariloche, Rio Negro, Argentina
- Correspondence:
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Cheong BE, Onyemaobi O, Wing Ho Ho W, Biddulph TB, Rupasinghe TWT, Roessner U, Dolferus R. Phenotyping the Chilling and Freezing Responses of Young Microspore Stage Wheat Spikes Using Targeted Metabolome and Lipidome Profiling. Cells 2020; 9:cells9051309. [PMID: 32466096 PMCID: PMC7291281 DOI: 10.3390/cells9051309] [Citation(s) in RCA: 11] [Impact Index Per Article: 2.8] [Reference Citation Analysis] [Abstract] [Key Words] [MESH Headings] [Track Full Text] [Download PDF] [Figures] [Journal Information] [Subscribe] [Scholar Register] [Received: 04/15/2020] [Revised: 05/16/2020] [Accepted: 05/20/2020] [Indexed: 12/22/2022] Open
Abstract
Chilling and frost conditions impose major yield restraints to wheat crops in Australia and other temperate climate regions. Unpredictability and variability of field frost events are major impediments for cold tolerance breeding. Metabolome and lipidome profiling were used to compare the cold response in spikes of cold-tolerant Young and sensitive variety Wyalkatchem at the young microspore (YM) stage of pollen development. We aimed to identify metabolite markers that can reliably distinguish cold-tolerant and sensitive wheat varieties for future cold-tolerance phenotyping applications. We scored changes in spike metabolites and lipids for both varieties during cold acclimation after initial and prolonged exposure to combined chilling and freezing cycles (1 and 4 days, respectively) using controlled environment conditions. The two contrasting wheat varieties showed qualitative and quantitative differences in primary metabolites involved in osmoprotection, but differences in lipid accumulation most distinctively separated the cold response of the two wheat lines. These results resemble what we previously observed in flag leaves of the same two wheat varieties. The fact that this response occurs in tissue types with very different functions indicates that chilling and freezing tolerance in these wheat lines is associated with re-modelling of membrane lipid composition to maintain membrane fluidity.
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Affiliation(s)
- Bo Eng Cheong
- School of BioSciences, The University of Melbourne, Melbourne, VIC 3010, Australia; (B.E.C.); (W.W.H.H.); (T.W.T.R.); (U.R.)
| | - Olive Onyemaobi
- CSIRO Agriculture & Food, GPO Box 1700, Canberra, ACT 2601, Australia;
| | - William Wing Ho Ho
- School of BioSciences, The University of Melbourne, Melbourne, VIC 3010, Australia; (B.E.C.); (W.W.H.H.); (T.W.T.R.); (U.R.)
| | - Thomas Ben Biddulph
- Department of Primary Industries and Regional Development, 3 Baron Hay Court, South Perth, WA 6151, Australia;
| | - Thusitha W. T. Rupasinghe
- School of BioSciences, The University of Melbourne, Melbourne, VIC 3010, Australia; (B.E.C.); (W.W.H.H.); (T.W.T.R.); (U.R.)
| | - Ute Roessner
- School of BioSciences, The University of Melbourne, Melbourne, VIC 3010, Australia; (B.E.C.); (W.W.H.H.); (T.W.T.R.); (U.R.)
| | - Rudy Dolferus
- CSIRO Agriculture & Food, GPO Box 1700, Canberra, ACT 2601, Australia;
- Correspondence: ; Tel.: +61-2-6246 5010
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Shi Y, Phan H, Liu Y, Cao S, Zhang Z, Chu C, Schläppi MR. Glycosyltransferase OsUGT90A1 helps protect the plasma membrane during chilling stress in rice. JOURNAL OF EXPERIMENTAL BOTANY 2020; 71:2723-2739. [PMID: 31974553 PMCID: PMC7210772 DOI: 10.1093/jxb/eraa025] [Citation(s) in RCA: 31] [Impact Index Per Article: 7.8] [Reference Citation Analysis] [Abstract] [Key Words] [MESH Headings] [Grants] [Track Full Text] [Subscribe] [Scholar Register] [Received: 10/16/2019] [Accepted: 01/23/2020] [Indexed: 05/09/2023]
Abstract
Due to its subtropical origins, rice (Oryza sativa) is sensitive to low-temperature stress. In this study, we identify LOC_Os04g24110, annotated to encode the UDP-glycosyltransferase enzyme UGT90A1, as a gene associated with the low-temperature seedling survivability (LTSS) quantitative trait locus qLTSS4-1. Differences between haplotypes in the control region of OsUGT90A1 correlate with chilling tolerance phenotypes, and reflect differential expression between tolerant and sensitive accessions rather than differences in protein sequences. Expression of OsUGT90A1 is initially enhanced by low temperature, and its overexpression helps to maintain membrane integrity during cold stress and promotes leaf growth during stress recovery, which are correlated with reduced levels of reactive oxygen species due to increased activities of antioxidant enzymes. In addition, overexpression of OsUGT90A1 in Arabidopsis improves freezing survival and tolerance to salt stress, again correlated with enhanced activities of antioxidant enzymes. Overexpression of OsUGT90A1 in rice decreases root lengths in 3-week-old seedlings while gene-knockout increases the length, indicating that its differential expression may affect phytohormone activities. We conclude that higher OsUGT90A1 expression in chilling-tolerant accessions helps to maintain cell membrane integrity as an abiotic stress-tolerance mechanism that prepares plants for the resumption of growth and development during subsequent stress recovery.
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Affiliation(s)
- Yao Shi
- Department of Biological Sciences, Marquette University, Milwaukee, WI, USA
- Present address: The University of Pennsylvania School of Dental Medicine, Levy Building, Biochemistry Department, Rm538, 240 S 40th St, Philadelphia, PA 19104, USA
| | - Huy Phan
- Department of Biological Sciences, Marquette University, Milwaukee, WI, USA
| | - Yaju Liu
- National Sweet Potato Improvement Center, Sweet Potato Research Institute, Xuzhou, P.R. China
| | - Shouyun Cao
- State Key Laboratory of Plant Genomics, Institute of Genetics and Developmental Biology, The Innovative Academy of Seed Design, Chinese Academy of Sciences, Beijing, China
| | - Zhihua Zhang
- State Key Laboratory of Plant Genomics, Institute of Genetics and Developmental Biology, The Innovative Academy of Seed Design, Chinese Academy of Sciences, Beijing, China
| | - Chengcai Chu
- State Key Laboratory of Plant Genomics, Institute of Genetics and Developmental Biology, The Innovative Academy of Seed Design, Chinese Academy of Sciences, Beijing, China
| | - Michael R Schläppi
- Department of Biological Sciences, Marquette University, Milwaukee, WI, USA
- Correspondence:
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Lillo-Carmona V, Espinoza A, Rothkegel K, Rubilar M, Nilo-Poyanco R, Pedreschi R, Campos-Vargas R, Meneses C. Identification of Metabolite and Lipid Profiles in a Segregating Peach Population Associated with Mealiness in Prunus persica (L.) Batsch. Metabolites 2020; 10:metabo10040154. [PMID: 32316167 PMCID: PMC7240955 DOI: 10.3390/metabo10040154] [Citation(s) in RCA: 12] [Impact Index Per Article: 3.0] [Reference Citation Analysis] [Abstract] [Key Words] [Track Full Text] [Download PDF] [Figures] [Journal Information] [Subscribe] [Scholar Register] [Received: 03/03/2020] [Revised: 04/02/2020] [Accepted: 04/14/2020] [Indexed: 12/13/2022] Open
Abstract
The peach is the third most important temperate fruit crop considering fruit production and harvested area in the world. Exporting peaches represents a challenge due to the long-distance nature of export markets. This requires fruit to be placed in cold storage for a long time, which can induce a physiological disorder known as chilling injury (CI). The main symptom of CI is mealiness, which is perceived as non-juicy fruit by consumers. The purpose of this work was to identify and compare the metabolite and lipid profiles between two siblings from contrasting populations for juice content, at harvest and after 30 days at 0 °C. A total of 119 metabolites and 189 lipids were identified, which showed significant differences in abundance, mainly in amino acids, sugars and lipids. Metabolites displaying significant changes from the E1 to E3 stages corresponded to lipids such as phosphatidylglycerol (PG), monogalactosyldiacylglycerol (MGDG) and lysophosphatidylcholines (LPC), and sugars such as fructose 1 and 1-fructose-6 phosphate. These metabolites might be used as early stage biomarkers associated with mealiness at harvest and after cold storage.
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Affiliation(s)
- Victoria Lillo-Carmona
- Centro de Biotecnología Vegetal, Facultad de Ciencias de la Vida, Universidad Andrés Bello, Avenida República 330, Santiago 8370186, Chile; (V.L.-C.); (A.E.); (K.R.); (M.R.); (R.C.-V.)
| | - Alonso Espinoza
- Centro de Biotecnología Vegetal, Facultad de Ciencias de la Vida, Universidad Andrés Bello, Avenida República 330, Santiago 8370186, Chile; (V.L.-C.); (A.E.); (K.R.); (M.R.); (R.C.-V.)
| | - Karin Rothkegel
- Centro de Biotecnología Vegetal, Facultad de Ciencias de la Vida, Universidad Andrés Bello, Avenida República 330, Santiago 8370186, Chile; (V.L.-C.); (A.E.); (K.R.); (M.R.); (R.C.-V.)
| | - Miguel Rubilar
- Centro de Biotecnología Vegetal, Facultad de Ciencias de la Vida, Universidad Andrés Bello, Avenida República 330, Santiago 8370186, Chile; (V.L.-C.); (A.E.); (K.R.); (M.R.); (R.C.-V.)
| | - Ricardo Nilo-Poyanco
- Escuela de Biotecnología, Facultad de Ciencias, Universidad Mayor, Camino La Pirámide 5750, Huechuraba, Santiago 8580745, Chile;
| | - Romina Pedreschi
- Escuela de Agronomía, Facultad de Ciencias Agronómicas y de los Alimentos, Pontificia Universidad Católica de Valparaíso, Calle San Francisco s/n, La Palma, Quillota 2260000, Chile;
| | - Reinaldo Campos-Vargas
- Centro de Biotecnología Vegetal, Facultad de Ciencias de la Vida, Universidad Andrés Bello, Avenida República 330, Santiago 8370186, Chile; (V.L.-C.); (A.E.); (K.R.); (M.R.); (R.C.-V.)
| | - Claudio Meneses
- Centro de Biotecnología Vegetal, Facultad de Ciencias de la Vida, Universidad Andrés Bello, Avenida República 330, Santiago 8370186, Chile; (V.L.-C.); (A.E.); (K.R.); (M.R.); (R.C.-V.)
- FONDAP Center for Genome Regulation, Universidad Andrés Bello, Blanco Encalada 2085, Santiago 87370415, Chile
- Correspondence:
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Lohani N, Jain D, Singh MB, Bhalla PL. Engineering Multiple Abiotic Stress Tolerance in Canola, Brassica napus. FRONTIERS IN PLANT SCIENCE 2020; 11:3. [PMID: 32161602 PMCID: PMC7052498 DOI: 10.3389/fpls.2020.00003] [Citation(s) in RCA: 41] [Impact Index Per Article: 10.3] [Reference Citation Analysis] [Abstract] [Key Words] [Track Full Text] [Subscribe] [Scholar Register] [Received: 10/16/2019] [Accepted: 01/03/2020] [Indexed: 05/22/2023]
Abstract
Impacts of climate change like global warming, drought, flooding, and other extreme events are posing severe challenges to global crop production. Contribution of Brassica napus towards the oilseed industry makes it an essential component of international trade and agroeconomics. Consequences from increasing occurrences of multiple abiotic stresses on this crop are leading to agroeconomic losses making it vital to endow B. napus crop with an ability to survive and maintain yield when faced with simultaneous exposure to multiple abiotic stresses. For an improved understanding of the stress sensing machinery, there is a need for analyzing regulatory pathways of multiple stress-responsive genes and other regulatory elements such as non-coding RNAs. However, our understanding of these pathways and their interactions in B. napus is far from complete. This review outlines the current knowledge of stress-responsive genes and their role in imparting multiple stress tolerance in B. napus. Analysis of network cross-talk through omics data mining is now making it possible to unravel the underlying complexity required for stress sensing and signaling in plants. Novel biotechnological approaches such as transgene-free genome editing and utilization of nanoparticles as gene delivery tools are also discussed. These can contribute to providing solutions for developing climate change resilient B. napus varieties with reduced regulatory limitations. The potential ability of synthetic biology to engineer and modify networks through fine-tuning of stress regulatory elements for plant responses to stress adaption is also highlighted.
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Affiliation(s)
| | | | | | - Prem L. Bhalla
- Plant Molecular Biology and Biotechnology Laboratory, Faculty of Veterinary and Agricultural Sciences, The University of Melbourne, Melbourne, VIC, Australia
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80
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Abstract
The perennial life strategy of temperate trees relies on establishing a dormant stage during winter to survive unfavorable conditions. To overcome this dormant stage, trees require cool (i.e., chilling) temperatures as an environmental cue. Numerous approaches have tried to decipher the physiology of dormancy, but these efforts have usually remained relatively narrowly focused on particular regulatory or metabolic processes, recently integrated and linked by transcriptomic studies. This work aimed to synthesize existing knowledge on dormancy into a general conceptual framework to enhance dormancy comprehension. The proposed conceptual framework covers four physiological processes involved in dormancy progression: (i) transport at both whole-plant and cellular level, (ii) phytohormone dynamics, (iii) genetic and epigenetic regulation, and (iv) dynamics of nonstructural carbohydrates. We merged the regulatory levels into a seasonal framework integrating the environmental signals (i.e., temperature and photoperiod) that trigger each dormancy phase.
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81
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Wang J, Fang R, Yuan L, Yuan G, Zhao M, Zhu S, Hou J, Chen G, Wang C. Response of photosynthetic capacity and antioxidative system of chloroplast in two wucai ( Brassica campestris L.) genotypes against chilling stress. PHYSIOLOGY AND MOLECULAR BIOLOGY OF PLANTS : AN INTERNATIONAL JOURNAL OF FUNCTIONAL PLANT BIOLOGY 2020; 26:219-232. [PMID: 32158130 PMCID: PMC7036399 DOI: 10.1007/s12298-019-00743-8] [Citation(s) in RCA: 0] [Impact Index Per Article: 0] [Reference Citation Analysis] [Abstract] [Key Words] [Grants] [Track Full Text] [Subscribe] [Scholar Register] [Received: 05/19/2019] [Revised: 08/05/2019] [Accepted: 12/03/2019] [Indexed: 05/07/2023]
Abstract
Chilling stress during the growing season could cause a series of changes in wucai (Brassica campestris L.). WS-1 (chilling-tolerant genotype) and Ta2 (chilling-sensitive genotype) were sampled in present study to explore the chilling tolerance mechanisms. Our results indicated that photosynthetic parameters exhibited lower level in Ta2 than in WS-1 under chilling stress. The rapid chlorophyll fluorescence dynamics curve showed that chilling resulted in a greater inactivation of photosystem II reaction center in Ta2. Reactive oxygen species and malondialdehyde content of chloroplast in Ta2 were higher than WS-1. The ascorbate-glutathione cycle in chloroplast of WS-1 played a more crucial role than Ta2, which was confirmed by higher activities of antioxidant enzymes including Ascorbate peroxidase, Glutathione reductase, Monodehydroascorbate reductase and Dehydroascorbate reductase and higher content of AsA and GSH. In addition, the ultrastructure of chloroplasts in Ta2 was more severely damaged. After low temperature stress, the shape of starch granules in Ta2 changed from elliptical to round and the volume became larger than that of WS-1. The thylakoid structure of Ta2 also became dispersed from the original tight arrangement. Combined with our previous study under heat stress, WS-1 can tolerant both chilling stress and heat stress, which was partly due to a stable photosynthetic system and the higher active antioxidant system in plants, in comparison to Ta2.
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Affiliation(s)
- Jie Wang
- Vegetable Genetics and Breeding Laboratory, College of Horticulture, Anhui Agricultural University, Hefei, 230036 China
- Provincial Engineering Laboratory for Horticultural Crop Breeding of Anhui, Hefei, 230036 China
| | - Rou Fang
- Vegetable Genetics and Breeding Laboratory, College of Horticulture, Anhui Agricultural University, Hefei, 230036 China
- Provincial Engineering Laboratory for Horticultural Crop Breeding of Anhui, Hefei, 230036 China
| | - Lingyun Yuan
- Vegetable Genetics and Breeding Laboratory, College of Horticulture, Anhui Agricultural University, Hefei, 230036 China
- Provincial Engineering Laboratory for Horticultural Crop Breeding of Anhui, Hefei, 230036 China
- Wanjiang Vegetable Industrial Technology Institute, Maanshan, 243000 Anhui China
| | - Guoqin Yuan
- Vegetable Genetics and Breeding Laboratory, College of Horticulture, Anhui Agricultural University, Hefei, 230036 China
| | - Mengru Zhao
- Vegetable Genetics and Breeding Laboratory, College of Horticulture, Anhui Agricultural University, Hefei, 230036 China
- Provincial Engineering Laboratory for Horticultural Crop Breeding of Anhui, Hefei, 230036 China
| | - Shidong Zhu
- Vegetable Genetics and Breeding Laboratory, College of Horticulture, Anhui Agricultural University, Hefei, 230036 China
- Provincial Engineering Laboratory for Horticultural Crop Breeding of Anhui, Hefei, 230036 China
- Wanjiang Vegetable Industrial Technology Institute, Maanshan, 243000 Anhui China
| | - Jinfeng Hou
- Vegetable Genetics and Breeding Laboratory, College of Horticulture, Anhui Agricultural University, Hefei, 230036 China
- Provincial Engineering Laboratory for Horticultural Crop Breeding of Anhui, Hefei, 230036 China
- Wanjiang Vegetable Industrial Technology Institute, Maanshan, 243000 Anhui China
| | - Guohu Chen
- Vegetable Genetics and Breeding Laboratory, College of Horticulture, Anhui Agricultural University, Hefei, 230036 China
- Provincial Engineering Laboratory for Horticultural Crop Breeding of Anhui, Hefei, 230036 China
| | - Chenggang Wang
- Vegetable Genetics and Breeding Laboratory, College of Horticulture, Anhui Agricultural University, Hefei, 230036 China
- Provincial Engineering Laboratory for Horticultural Crop Breeding of Anhui, Hefei, 230036 China
- Wanjiang Vegetable Industrial Technology Institute, Maanshan, 243000 Anhui China
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82
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Abstract
Climate change leads to global drought-induced stress and increased plant mortality. Tree species living in rapidly changing climate conditions are exposed to danger and must adapt to new climate conditions to survive. Trees respond to changes in the environment in numerous ways. Physiological modulation at the seed stage, germination strategy and further development are influenced by many different factors. We review forest abiotic threats (such as drought and heat), including biochemical responses of plants to stress, and biotic threats (pathogens and insects) related to global warming. We then discus the varied adaptations of tree species to changing climate conditions such as seed resistance to environmental stress, improved by an increase in temperature, affinity to specific fungal symbionts, a wide range of tolerance to abiotic environmental conditions in the offspring of populations occurring in continental climate, and germination strategies closely linked to the ecological niche of the species. The existing studies do not clearly indicate whether tree adaptations are shaped by epigenetics or phenology and do not define the role of phenotypic plasticity in tree development. We have created a juxtaposition of literature that is useful in identifying the factors that play key roles in these processes. We compare scientific evidence that species distribution and survival are possible due to phenotypic plasticity and thermal memory with studies that testify that trees’ phenology depends on phylogenesis, but this issue is still open. It is possible that studies in the near future will bring us closer to understanding the mechanisms through which trees adapt to stressful conditions, especially in the context of epigenetic memory in long-lived organisms, and allow us to minimize the harmful effects of climatic events by predicting tree species’ responses or by developing solutions such as assisted migration to mitigate the consequences of these phenomena.
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Morales F, Ancín M, Fakhet D, González-Torralba J, Gámez AL, Seminario A, Soba D, Ben Mariem S, Garriga M, Aranjuelo I. Photosynthetic Metabolism under Stressful Growth Conditions as a Bases for Crop Breeding and Yield Improvement. PLANTS (BASEL, SWITZERLAND) 2020; 9:E88. [PMID: 31936732 PMCID: PMC7020424 DOI: 10.3390/plants9010088] [Citation(s) in RCA: 52] [Impact Index Per Article: 13.0] [Reference Citation Analysis] [Abstract] [Key Words] [Grants] [Track Full Text] [Download PDF] [Figures] [Subscribe] [Scholar Register] [Received: 11/29/2019] [Revised: 12/23/2019] [Accepted: 01/02/2020] [Indexed: 01/04/2023]
Abstract
Increased periods of water shortage and higher temperatures, together with a reduction in nutrient availability, have been proposed as major factors that negatively impact plant development. Photosynthetic CO2 assimilation is the basis of crop production for animal and human food, and for this reason, it has been selected as a primary target for crop phenotyping/breeding studies. Within this context, knowledge of the mechanisms involved in the response and acclimation of photosynthetic CO2 assimilation to multiple changing environmental conditions (including nutrients, water availability, and rising temperature) is a matter of great concern for the understanding of plant behavior under stress conditions, and for the development of new strategies and tools for enhancing plant growth in the future. The current review aims to analyze, from a multi-perspective approach (ranging across breeding, gas exchange, genomics, etc.) the impact of changing environmental conditions on the performance of the photosynthetic apparatus and, consequently, plant growth.
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Affiliation(s)
- Fermín Morales
- Instituto de Agrobiotecnología (IdAB), Consejo Superior de Investigaciones Científicas (CSIC)-Gobierno de Navarra, Av. Pamplona 123, 31192 Mutilva, Spain; (F.M.); (M.A.); (D.F.); (A.L.G.); (A.S.); (D.S.); (S.B.M.)
- Dpto. Nutrición Vegetal, Estación Experimental de Aula Dei (EEAD), CSIC, Apdo. 13034, 50080 Zaragoza, Spain
| | - María Ancín
- Instituto de Agrobiotecnología (IdAB), Consejo Superior de Investigaciones Científicas (CSIC)-Gobierno de Navarra, Av. Pamplona 123, 31192 Mutilva, Spain; (F.M.); (M.A.); (D.F.); (A.L.G.); (A.S.); (D.S.); (S.B.M.)
| | - Dorra Fakhet
- Instituto de Agrobiotecnología (IdAB), Consejo Superior de Investigaciones Científicas (CSIC)-Gobierno de Navarra, Av. Pamplona 123, 31192 Mutilva, Spain; (F.M.); (M.A.); (D.F.); (A.L.G.); (A.S.); (D.S.); (S.B.M.)
| | - Jon González-Torralba
- Institute for Multidisciplinary Applied Biology, Dpto. Agronomía, Biotecnología y Alimentación, Universidad Pública de Navarra, Campus Arrosadia, 31006 Pamplona, Spain;
| | - Angie L. Gámez
- Instituto de Agrobiotecnología (IdAB), Consejo Superior de Investigaciones Científicas (CSIC)-Gobierno de Navarra, Av. Pamplona 123, 31192 Mutilva, Spain; (F.M.); (M.A.); (D.F.); (A.L.G.); (A.S.); (D.S.); (S.B.M.)
| | - Amaia Seminario
- Instituto de Agrobiotecnología (IdAB), Consejo Superior de Investigaciones Científicas (CSIC)-Gobierno de Navarra, Av. Pamplona 123, 31192 Mutilva, Spain; (F.M.); (M.A.); (D.F.); (A.L.G.); (A.S.); (D.S.); (S.B.M.)
| | - David Soba
- Instituto de Agrobiotecnología (IdAB), Consejo Superior de Investigaciones Científicas (CSIC)-Gobierno de Navarra, Av. Pamplona 123, 31192 Mutilva, Spain; (F.M.); (M.A.); (D.F.); (A.L.G.); (A.S.); (D.S.); (S.B.M.)
| | - Sinda Ben Mariem
- Instituto de Agrobiotecnología (IdAB), Consejo Superior de Investigaciones Científicas (CSIC)-Gobierno de Navarra, Av. Pamplona 123, 31192 Mutilva, Spain; (F.M.); (M.A.); (D.F.); (A.L.G.); (A.S.); (D.S.); (S.B.M.)
| | - Miguel Garriga
- Centro de Mejoramiento Genético y Fenómica Vegetal, Facultad de Ciencias Agrarias, Universidad de Talca, Talca 3460000, Chile;
| | - Iker Aranjuelo
- Instituto de Agrobiotecnología (IdAB), Consejo Superior de Investigaciones Científicas (CSIC)-Gobierno de Navarra, Av. Pamplona 123, 31192 Mutilva, Spain; (F.M.); (M.A.); (D.F.); (A.L.G.); (A.S.); (D.S.); (S.B.M.)
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84
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He M, Ding NZ. Plant Unsaturated Fatty Acids: Multiple Roles in Stress Response. FRONTIERS IN PLANT SCIENCE 2020; 11:562785. [PMID: 33013981 PMCID: PMC7500430 DOI: 10.3389/fpls.2020.562785] [Citation(s) in RCA: 89] [Impact Index Per Article: 22.3] [Reference Citation Analysis] [Abstract] [Key Words] [Track Full Text] [Subscribe] [Scholar Register] [Received: 05/16/2020] [Accepted: 08/19/2020] [Indexed: 05/21/2023]
Abstract
Land plants are exposed to not only biotic stresses such as pathogen infection and herbivore wounding, but abiotic stresses such as cold, heat, drought, and salt. Elaborate strategies have been developed to avoid or abide the adverse effects, with unsaturated fatty acids (UFAs) emerging as general defenders. In higher plants, the most common UFAs are three 18-carbon species, namely, oleic (18:1), linoleic (18:2), and α-linolenic (18:3) acids. These simple compounds act as ingredients and modulators of cellular membranes in glycerolipids, reserve of carbon and energy in triacylglycerol, stocks of extracellular barrier constituents (e.g., cutin and suberin), precursors of various bioactive molecules (e.g., jasmonates and nitroalkenes), and regulators of stress signaling. Nevertheless, they are also potential inducers of oxidative stress. In this review, we will present an overview of these roles and then shed light on genetic engineering of FA synthetic genes for improving plant/crop stress tolerance.
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85
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Lim CW, Lee SC. ABA-Dependent and ABA-Independent Functions of RCAR5/PYL11 in Response to Cold Stress. FRONTIERS IN PLANT SCIENCE 2020; 11:587620. [PMID: 33101352 PMCID: PMC7545830 DOI: 10.3389/fpls.2020.587620] [Citation(s) in RCA: 1] [Impact Index Per Article: 0.3] [Reference Citation Analysis] [Abstract] [Key Words] [Track Full Text] [Subscribe] [Scholar Register] [Received: 07/27/2020] [Accepted: 09/09/2020] [Indexed: 05/04/2023]
Abstract
Arabidopsis thaliana has 14 abscisic acid (ABA) receptors-PYR1/PYLs/RCARs-which have diverse and redundant functions in ABA signaling; however, the precise role of these ABA receptors remains to be elucidated. Here, we report the functional characterization of RCAR5/PYL11 in response to cold stress. Expression of RCAR5 gene in dry seeds and leaves was ABA-dependent and ABA-independent, respectively. Under cold stress conditions, seed germination was negatively affected by the level of RCAR5 expression, which was dependent on ABA and was regulated by HAB1, OST1, and ABI5-downstream components of RCAR5 in ABA signaling. Leaves of RCAR5-overexpressing plants showed enhanced stomatal closure-independent of ABA-and high expression levels of cold, dehydration, and/or ABA-responsive genes compared to those of wild-type; these traits conferred enhanced freezing tolerance. Our data suggest that RCAR5 functions in response to cold stress by delaying seed germination and inducing rapid stomatal closure via ABA-dependent and ABA-independent pathways, respectively.
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86
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Koselski M, Wasko P, Kupisz K, Trebacz K. Cold- and menthol-evoked membrane potential changes in the moss Physcomitrella patens: influence of ion channel inhibitors and phytohormones. PHYSIOLOGIA PLANTARUM 2019; 167:433-446. [PMID: 30629304 DOI: 10.1111/ppl.12918] [Citation(s) in RCA: 1] [Impact Index Per Article: 0.2] [Reference Citation Analysis] [Abstract] [MESH Headings] [Track Full Text] [Subscribe] [Scholar Register] [Received: 06/11/2018] [Revised: 12/18/2018] [Accepted: 12/23/2018] [Indexed: 06/09/2023]
Abstract
Microelectrode measurements carried out on leaf cells from Physcomitrella patens revealed that a sudden temperature drop and application of menthol evoked two types of different-shaped membrane potential changes. Cold stimulation evoked spike-type responses. Menthol depolarized the cell membrane with different rates. When it reached above 1 mV s-1 , the full response was recorded. Characteristic for the full responses was also a few-minute plateau of the membrane potential recorded after depolarization. The influence of inhibitors of calcium channels (5 mM Gd3+ ), potassium channels (5 mM Ba2+ ), chloride channels (200 μM Zn2+ , 50 μM niflumic acid) and proton pumps (10 μM DES), an activator of calcium release from intracellular stores (Sr2+ ), calcium chelation (by 400 μM EGTA) and phytohormones (50 μM auxin, 50 μM abscisic acid (ABA), 500 μM salicylic acid) on cold- and menthol-evoked responses was tested. Both responses are different in respect to the ion mechanism: cold-evoked depolarizations were influenced by Ba2+ and DES; in turn, menthol-evoked potential changes were most effectively blocked by Zn2+ . Moreover, the effectiveness of menthol in generation of full responses was reduced after administration of auxin or ABA, i.e. phytohormones known for their participation in responses to cold and regulation of proton pumps. The effects of DES indicated that one of the main conditions for generation of menthol-evoked responses is inhibition of the proton pump activity. Our results indicate that perception of cold and menthol by plants proceeds in different ways due to the differences in ionic mechanism and hormone dependence of cold- and menthol-evoked responses.
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Affiliation(s)
- Mateusz Koselski
- Department of Biophysics, Institute of Biology and Biochemistry, Maria Curie-Skłodowska University, Akademicka 19, 20-033 Lublin, Poland
| | - Piotr Wasko
- Department of Biophysics, Institute of Biology and Biochemistry, Maria Curie-Skłodowska University, Akademicka 19, 20-033 Lublin, Poland
| | - Kamila Kupisz
- Department of Biophysics, Institute of Biology and Biochemistry, Maria Curie-Skłodowska University, Akademicka 19, 20-033 Lublin, Poland
| | - Kazimierz Trebacz
- Department of Biophysics, Institute of Biology and Biochemistry, Maria Curie-Skłodowska University, Akademicka 19, 20-033 Lublin, Poland
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87
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Kjaer KH, Winde J, Petersen KK, Yde CC, Pagter M. Cold deacclimation mechanisms and reacclimation potential in flower buds of blackcurrant (Ribes nigrum). PHYSIOLOGIA PLANTARUM 2019; 167:111-126. [PMID: 30421426 DOI: 10.1111/ppl.12873] [Citation(s) in RCA: 2] [Impact Index Per Article: 0.4] [Reference Citation Analysis] [Abstract] [MESH Headings] [Track Full Text] [Subscribe] [Scholar Register] [Received: 06/14/2018] [Revised: 10/26/2018] [Accepted: 06/08/2018] [Indexed: 05/22/2023]
Abstract
As a consequence of global climate change, cold acclimation and deacclimation cycles are becoming increasingly frequent during winter in temperate regions. However, little is known about plant deacclimation and in particular reacclimation mechanisms, although deacclimation resistance and the ability to reacclimate may have wide-ranging consequences regarding plant productivity in a changing climate. Here, we report time-dependent responses of freezing tolerance, respiration rates, metabolite contents (high-resolution magic angle spinning NMR) and fatty acid levels (gas chromatography) in flower buds of two ecodormant Ribes nigrum cultivars exposed to three different deacclimation temperatures followed by a reacclimation treatment at 4°C. The data reveal that despite differences in the progression of deacclimation, the capacity of blackcurrant flower buds to reharden in late winter is virtually non-existing, implying that increasingly irregular temperature patterns is critical for blackcurrant fruit yield. The early phase of deacclimation is associated with a transient increase in respiration and decreasing contents of amino acids, tricarboxylic acid (TCA) cycle intermediates and sugars, indicating an increased need for carbon sources and respiratory energy production for the activation of growth. Decreasing sugar levels may additionally cause loss of freezing tolerance. Deacclimation also involves desaturation of membrane lipids, which likely also contributes to decreased freezing tolerance but may also reflect biosynthesis of signaling molecules stimulating growth and floral organ differentiation. These data provide new insights into the under-researched deacclimation mechanisms and the ability of blackcurrant to reacclimate following different advancements of deacclimation and contribute to our understanding of plant responses to increasingly irregular temperature patterns.
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Affiliation(s)
- Katrine H Kjaer
- Department of Food Science, Aarhus University, DK-5792, Aarslev, Denmark
| | - Jacob Winde
- Department of Food Science, Aarhus University, DK-5792, Aarslev, Denmark
| | - Karen K Petersen
- Department of Food Science, Aarhus University, DK-5792, Aarslev, Denmark
| | - Christian C Yde
- Department of Food Science, Aarhus University, DK-5792, Aarslev, Denmark
| | - Majken Pagter
- Department of Chemistry and Bioscience, Aalborg University, DK-9220, Aalborg East, Denmark
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88
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Herrmann HA, Schwartz JM, Johnson GN. Metabolic acclimation-a key to enhancing photosynthesis in changing environments? JOURNAL OF EXPERIMENTAL BOTANY 2019; 70:3043-3056. [PMID: 30997505 DOI: 10.1093/jxb/erz157] [Citation(s) in RCA: 22] [Impact Index Per Article: 4.4] [Reference Citation Analysis] [Abstract] [Key Words] [MESH Headings] [Grants] [Track Full Text] [Subscribe] [Scholar Register] [Received: 12/17/2018] [Accepted: 03/21/2019] [Indexed: 05/18/2023]
Abstract
Plants adjust their photosynthetic capacity in response to their environment in a way that optimizes their yield and fitness. There is growing evidence that this acclimation is a response to changes in the leaf metabolome, but the extent to which these are linked and how this is optimized remain poorly understood. Using as an example the metabolic perturbations occurring in response to cold, we define the different stages required for acclimation, discuss the evidence for a metabolic temperature sensor, and suggest further work towards designing climate-smart crops. In particular, we discuss how constraint-based and kinetic metabolic modelling approaches can be used to generate targeted hypotheses about relevant pathways, and argue that a stronger integration of experimental and in silico studies will help us to understand the tightly regulated interplay of carbon partitioning and resource allocation required for photosynthetic acclimation to different environmental conditions.
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Affiliation(s)
- Helena A Herrmann
- School of Earth and Environmental Sciences, Faculty of Science and Engineering, University of Manchester, Manchester, UK
- Division of Evolution & Genomic Sciences, Faculty of Biology, Medicine and Health, University of Manchester, Manchester, UK
| | - Jean-Marc Schwartz
- Division of Evolution & Genomic Sciences, Faculty of Biology, Medicine and Health, University of Manchester, Manchester, UK
| | - Giles N Johnson
- School of Earth and Environmental Sciences, Faculty of Science and Engineering, University of Manchester, Manchester, UK
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89
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Fei Q, Zhang J, Zhang Z, Wang Y, Liang L, Wu L, Gao H, Sun Y, Niu B, Li X. Effects of auxin and ethylene on root growth adaptation to different ambient temperatures in Arabidopsis. PLANT SCIENCE : AN INTERNATIONAL JOURNAL OF EXPERIMENTAL PLANT BIOLOGY 2019; 281:159-172. [PMID: 30824048 DOI: 10.1016/j.plantsci.2019.01.018] [Citation(s) in RCA: 12] [Impact Index Per Article: 2.4] [Reference Citation Analysis] [Abstract] [Key Words] [MESH Headings] [Track Full Text] [Subscribe] [Scholar Register] [Received: 11/18/2018] [Revised: 01/14/2019] [Accepted: 01/19/2019] [Indexed: 06/09/2023]
Abstract
As sessile organisms, plants can modify their growth strategy in response to different temperatures, however very little is known about how roots growth responds to ambient temperature change. Here, we found that high temperature-induced root elongation is dependent on light intensity and the root growth of most TAA1 loss-of-function mutants is more sensitive to higher temperatures in Arabidopsis. TAA1 encodes a tryptophan aminotransferase which involved in the indole-3-pyruvic acid (IPA) pathway of indole-3-acetic acid (IAA) biosynthesis. The root elongation in ckrc1-1(one allele mutant of TAA1) is less sensitive to lower temperatures and more sensitive to higher temperatures than that of Col-0. By comparing the regulatory mechanisms of ckrc1-1 root growth at different temperatures (17 °C, 22 °C, and 27 °C), different interactions between signals (auxin and ethylene) and the effects of downstream genes were observed at different ambient temperatures in Arabidopsis. Lower temperature-enhanced ETR1-mediated ethylene signaling did not promote the expression of CKRC1, while higher temperature-enhanced signaling did. CKRC1 had an important role in the ACC inhibition of cell elongation at 22 °C and 27 °C but not at 17 °C. CKRC1-dependent auxin biosynthesis was critical for maintaining PIN1, PIN2, and AUX1 expression at lower temperatures. CKRC1, AUX1, and PIN2 regulated root elongation by affecting different regions of the root at different temperatures in Arabidopsis. Our experimental results suggested that changes in the in vivo signals at different temperatures were multi-layered in Arabidopsis.
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Affiliation(s)
- Qionghui Fei
- Ministry of Education, Key Laboratory of Cell Activities and Stress Adaptations, School of Life Sciences, Lanzhou University, Lanzhou, 730000, China
| | - Jiahe Zhang
- Ministry of Education, Key Laboratory of Cell Activities and Stress Adaptations, School of Life Sciences, Lanzhou University, Lanzhou, 730000, China
| | - Zheru Zhang
- Ministry of Education, Key Laboratory of Cell Activities and Stress Adaptations, School of Life Sciences, Lanzhou University, Lanzhou, 730000, China
| | - Yuxiang Wang
- Ministry of Education, Key Laboratory of Cell Activities and Stress Adaptations, School of Life Sciences, Lanzhou University, Lanzhou, 730000, China
| | - Liyuan Liang
- Ministry of Education, Key Laboratory of Cell Activities and Stress Adaptations, School of Life Sciences, Lanzhou University, Lanzhou, 730000, China
| | - Lei Wu
- Ministry of Education, Key Laboratory of Cell Activities and Stress Adaptations, School of Life Sciences, Lanzhou University, Lanzhou, 730000, China
| | - Huanhuan Gao
- Ministry of Education, Key Laboratory of Cell Activities and Stress Adaptations, School of Life Sciences, Lanzhou University, Lanzhou, 730000, China
| | - Yingli Sun
- Ministry of Education, Key Laboratory of Cell Activities and Stress Adaptations, School of Life Sciences, Lanzhou University, Lanzhou, 730000, China
| | - Bingtao Niu
- National Demonstration Center for Experimental Biology Education, School of Life Sciences, Lanzhou University, Lanzhou, 730000, China
| | - Xiaofeng Li
- Ministry of Education, Key Laboratory of Cell Activities and Stress Adaptations, School of Life Sciences, Lanzhou University, Lanzhou, 730000, China.
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90
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Lenzoni G, Knight MR. Increases in Absolute Temperature Stimulate Free Calcium Concentration Elevations in the Chloroplast. PLANT & CELL PHYSIOLOGY 2019; 60:538-548. [PMID: 30517735 DOI: 10.1093/pcp/pcy227] [Citation(s) in RCA: 14] [Impact Index Per Article: 2.8] [Reference Citation Analysis] [Abstract] [Key Words] [MESH Headings] [Track Full Text] [Subscribe] [Scholar Register] [Received: 07/31/2018] [Accepted: 11/21/2018] [Indexed: 05/18/2023]
Abstract
Plants need to sense increases in temperature to be able to adapt their physiology and development to survive; however, the mechanisms of heat perception are currently relatively poorly understood. Here we demonstrate that in response to elevated temperature, the free calcium concentration of the stroma of chloroplasts increases. This response is specific to the chloroplast, as no corresponding increase in calcium is seen in the cytosol. The chloroplast calcium response is dose dependent above a threshold. The magnitude of this calcium response is dependent upon absolute temperature, not the rate of heating. This response is dynamic: repeated stimulation leads to rapid attenuation of the response, which can be overcome by sensitization at a higher temperature. More long-term acclimation to different temperatures resets the basal sensitivity of the system, such that plants acclimated to lower temperatures are more sensitive than those acclimated to higher temperatures. The heat-induced chloroplast calcium response was partially dependent upon the calcium-sensing receptor CAS which has been shown previously to regulate other chloroplast calcium signaling responses. Taken together, our data demonstrate the ability of chloroplasts to sense absolute high temperature and produce commensurately quantitative stromal calcium response, the magnitude of which is a function of both current temperature and stress history.
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Affiliation(s)
- Gioia Lenzoni
- Department of Biosciences, Durham University, South Road, Durham, UK
| | - Marc R Knight
- Department of Biosciences, Durham University, South Road, Durham, UK
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91
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Gouot JC, Smith JP, Holzapfel BP, Walker AR, Barril C. Grape berry flavonoids: a review of their biochemical responses to high and extreme high temperatures. JOURNAL OF EXPERIMENTAL BOTANY 2019; 70:397-423. [PMID: 30388247 DOI: 10.1093/jxb/ery392] [Citation(s) in RCA: 61] [Impact Index Per Article: 12.2] [Reference Citation Analysis] [Abstract] [MESH Headings] [Track Full Text] [Subscribe] [Scholar Register] [Received: 08/04/2018] [Accepted: 10/31/2018] [Indexed: 05/24/2023]
Abstract
Climate change scenarios predict an increase in average temperatures and in the frequency, intensity, and length of extreme temperature events in many wine regions around the world. In already warm and hot regions, such changes may compromise grape growing and the production of high quality wine as high temperature has been found to affect berry composition critically. Most recent studies focusing on the sole effect of temperature, separated from light and water, on grape berry composition found that high temperature affects a wide range of metabolites, and in particular flavonoids-key compounds for berry and wine quality. A decrease in total anthocyanins is reported in most cases, and appears to be directly associated with high temperature. Changes in anthocyanin composition, and flavonol and proanthocyanidin responses are however less consistent, and reflect the complexity of the underlying biosynthetic pathways and diversity of experimental treatments that have been used in these studies. This review examines the impact of high temperature on the biosynthesis, accumulation, and degradation of flavonoids, and attempts to reconcile the diversity of responses in relation to the latest understanding of flavonoid chemistry and molecular regulation.
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Affiliation(s)
- Julia C Gouot
- National Wine and Grape Industry Centre, Wagga Wagga, New South Wales, Australia
- School of Agricultural and Wine Sciences, Charles Sturt University, Wagga Wagga, New South Wales, Australia
| | - Jason P Smith
- National Wine and Grape Industry Centre, Wagga Wagga, New South Wales, Australia
- Department of General and Organic Viticulture, Hochschule Geisenheim University, Geisenheim, Germany
| | - Bruno P Holzapfel
- National Wine and Grape Industry Centre, Wagga Wagga, New South Wales, Australia
- New South Wales Department of Primary Industries, Wagga Wagga, New South Wales, Australia
| | - Amanda R Walker
- CSIRO Agriculture & Food, Glen Osmond, South Australia, Australia
| | - Celia Barril
- National Wine and Grape Industry Centre, Wagga Wagga, New South Wales, Australia
- School of Agricultural and Wine Sciences, Charles Sturt University, Wagga Wagga, New South Wales, Australia
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92
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Peppino Margutti M, Gaveglio VL, Reyna M, Pasquaré SJ, Racagni GE, Villasuso AL. Differential phosphatidic acid metabolism in barley leaves and roots induced by chilling temperature. PLANT PHYSIOLOGY AND BIOCHEMISTRY : PPB 2018; 132:174-182. [PMID: 30199789 DOI: 10.1016/j.plaphy.2018.08.038] [Citation(s) in RCA: 2] [Impact Index Per Article: 0.3] [Reference Citation Analysis] [Abstract] [Key Words] [MESH Headings] [Track Full Text] [Subscribe] [Scholar Register] [Received: 07/12/2018] [Revised: 08/28/2018] [Accepted: 08/28/2018] [Indexed: 06/08/2023]
Abstract
Phosphatidic acid (PA) is an important bioactive lipid that mediates chilling responses in barley. Modifications in the lipid composition of cellular membranes during chilling are essential to maintain their integrity and fluidity. First, we investigated the molecular species of PA present in leaves and roots by ESI-MS/MS, to evaluate the modifications that occur in response to chilling. We demonstrated that PA pools in leaves differ from PA fatty acid composition in roots. Compared with plants grown at 25 °C, the short-term and long-term chilling for 3 h and 36 h at 4 °C not produced significant changes in PA molecular species. The endogenous DAG and PA phosphorylation by in vitro DAG and PA kinase activities showed higher activity in leaves compared with that in root, and they showed contrasting responses to chilling. Similarly, PA removal by phosphatidate phosphohydrolase was tested, showing that this activity was specifically increased in response to chilling in roots. The findings presented here may be helpful to understand how the PA signal is modulated between tissues, and may serve to highlight the importance of knowing the basal PA pools in different plant organs.
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Affiliation(s)
- Micaela Peppino Margutti
- Dpto. de Biología Molecular, FCEFQN, Universidad Nacional de Río Cuarto, X5804BYA, Río Cuarto, Córdoba, Argentina
| | - Virginia L Gaveglio
- Instituto de Investigaciones Bioquímicas de Bahía Blanca INIBIBB, UNS-CONICET, Edificio E1, Camino La Carrindanga Km 7, 8000, Bahía Blanca, Argentina; Departamento de Biología, Bioquímica y Farmacia, Universidad Nacional del Sur, San Juan 670, 8000, Bahía Blanca, Argentina
| | - Mercedes Reyna
- Dpto. de Biología Molecular, FCEFQN, Universidad Nacional de Río Cuarto, X5804BYA, Río Cuarto, Córdoba, Argentina
| | - Susana J Pasquaré
- Instituto de Investigaciones Bioquímicas de Bahía Blanca INIBIBB, UNS-CONICET, Edificio E1, Camino La Carrindanga Km 7, 8000, Bahía Blanca, Argentina; Departamento de Biología, Bioquímica y Farmacia, Universidad Nacional del Sur, San Juan 670, 8000, Bahía Blanca, Argentina
| | - Graciela E Racagni
- Dpto. de Biología Molecular, FCEFQN, Universidad Nacional de Río Cuarto, X5804BYA, Río Cuarto, Córdoba, Argentina
| | - Ana Laura Villasuso
- Dpto. de Biología Molecular, FCEFQN, Universidad Nacional de Río Cuarto, X5804BYA, Río Cuarto, Córdoba, Argentina.
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93
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Lu PP, Zheng WJ, Wang CT, Shi WY, Fu JD, Chen M, Chen J, Zhou YB, Xi YJ, Xu ZS. Wheat Bax Inhibitor-1 interacts with TaFKBP62 and mediates response to heat stress. BMC PLANT BIOLOGY 2018; 18:259. [PMID: 30367612 PMCID: PMC6204060 DOI: 10.1186/s12870-018-1485-0] [Citation(s) in RCA: 4] [Impact Index Per Article: 0.7] [Reference Citation Analysis] [Abstract] [Key Words] [MESH Headings] [Grants] [Track Full Text] [Subscribe] [Scholar Register] [Received: 09/29/2017] [Accepted: 10/16/2018] [Indexed: 05/08/2023]
Abstract
BACKGROUND Heat stress is a severe environmental stress that affects plant growth and reduces yield. Bax inhibitor-1 (BI-1) is a cytoprotective protein that is involved in the response to biotic and abiotic stresses. The Arabidopsis (Arabidopsis thaliana) BI-1 mutants atbi1-1 and atbi1-2 are hypersensitive to heat stress, and AtBI-1 overexpression rescues thermotolerance deficiency in atbi1 plants. Nevertheless, the mechanism of BI-1 in plant thermotolerance is still unclear. RESULTS We identified a wheat (Triticum aestivum L.) BI-1 gene, TaBI-1.1, which was highly upregulated in an RNA sequencing (RNA-seq) analysis of heat-treated wheat. The upregulation of TaBI-1.1 under heat stress was further demonstrated by real time quantitative PCR (qRT-PCR) and β-glucuronidase (GUS) staining. Compared with the wild type Col-0, the atbi1-2 mutant is hypersensitive to heat stress, and constitutive expression of TaBI-1.1 in atbi1-2 (35S::TaBI-1.1/ atbi1-2) rescued the deficiency of atbi1-2 under heat stress. Furthermore, we identified TaFKBP62 as a TaBI-1.1-interacting protein that co-localized with TaBI-1.1 on the endoplasmic reticulum (ER) membrane and enhanced heat stress tolerance. Additionally, HSFA2, HSFB1, ROF1, HSP17.4B, HSP17.6A, HSP17.8, HSP70B, and HSP90.1 expression levels were suppressed in atbi1-2 plants under heat stress. In contrast, 35S::TaBI-1.1/atbi1-2 relieved the inhibitory effect of AtBI-1 loss of function. CONCLUSIONS TaBI-1.1 interacted with TaFKBP62 and co-localized with TaFKBP62 on the ER membrane. Both TaBI-1.1 and AtBI-1 regulated the expression of heat-responsive genes and were conserved in plant thermotolerance.
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Affiliation(s)
- Pan-Pan Lu
- Key Laboratory of Biology and Genetic Improvement of Triticeae Crops, Ministry of Agriculture, Institute of Crop Science, Chinese Academy of Agricultural Sciences (CAAS)/National Key Facility for Crop Gene Resources and Genetic Improvement, Beijing, 100081 China
- College of Agronomy, Northwest A&F University, Yangling, 712100 Shaanxi China
| | - Wei-Jun Zheng
- College of Agronomy, Northwest A&F University, Yangling, 712100 Shaanxi China
| | - Chang-Tao Wang
- Beijing Key Lab of Plant Resource Research and Development, Beijing Technology and Business University, Beijing, 100048 China
| | - Wen-Yan Shi
- Key Laboratory of Biology and Genetic Improvement of Triticeae Crops, Ministry of Agriculture, Institute of Crop Science, Chinese Academy of Agricultural Sciences (CAAS)/National Key Facility for Crop Gene Resources and Genetic Improvement, Beijing, 100081 China
| | - Jin-Dong Fu
- Key Laboratory of Biology and Genetic Improvement of Triticeae Crops, Ministry of Agriculture, Institute of Crop Science, Chinese Academy of Agricultural Sciences (CAAS)/National Key Facility for Crop Gene Resources and Genetic Improvement, Beijing, 100081 China
| | - Ming Chen
- Key Laboratory of Biology and Genetic Improvement of Triticeae Crops, Ministry of Agriculture, Institute of Crop Science, Chinese Academy of Agricultural Sciences (CAAS)/National Key Facility for Crop Gene Resources and Genetic Improvement, Beijing, 100081 China
| | - Jun Chen
- Key Laboratory of Biology and Genetic Improvement of Triticeae Crops, Ministry of Agriculture, Institute of Crop Science, Chinese Academy of Agricultural Sciences (CAAS)/National Key Facility for Crop Gene Resources and Genetic Improvement, Beijing, 100081 China
| | - Yong-Bin Zhou
- Key Laboratory of Biology and Genetic Improvement of Triticeae Crops, Ministry of Agriculture, Institute of Crop Science, Chinese Academy of Agricultural Sciences (CAAS)/National Key Facility for Crop Gene Resources and Genetic Improvement, Beijing, 100081 China
| | - Ya-Jun Xi
- College of Agronomy, Northwest A&F University, Yangling, 712100 Shaanxi China
| | - Zhao-Shi Xu
- Key Laboratory of Biology and Genetic Improvement of Triticeae Crops, Ministry of Agriculture, Institute of Crop Science, Chinese Academy of Agricultural Sciences (CAAS)/National Key Facility for Crop Gene Resources and Genetic Improvement, Beijing, 100081 China
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94
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Li S, Yang Y, Zhang Q, Liu N, Xu Q, Hu L. Differential physiological and metabolic response to low temperature in two zoysiagrass genotypes native to high and low latitude. PLoS One 2018; 13:e0198885. [PMID: 29889884 PMCID: PMC5995380 DOI: 10.1371/journal.pone.0198885] [Citation(s) in RCA: 39] [Impact Index Per Article: 6.5] [Reference Citation Analysis] [Abstract] [MESH Headings] [Track Full Text] [Download PDF] [Figures] [Journal Information] [Subscribe] [Scholar Register] [Received: 05/03/2018] [Accepted: 05/25/2018] [Indexed: 12/28/2022] Open
Abstract
Low temperature is one of the important limiting factors for growing season and geographical distribution of plants. Zoysiagrass (Zoysia Willd) is one of the widely used warm-season turfgrass that is distribute in many parts of the world. Zoysaigrass native to high latitude may have evolved higher cold tolerance than the ones native to low latitude. The objective of this study was to investigate the cold stress response in zoysiagrass native to diverse latitude at phenotypic, physiological and metabolic levels. Two zoysiagrass (Z. japonica) genotypes, Latitude-40 (higher latitude) and Latitude-22 (lower latitude) were subjected to four temperature treatments (optimum, 30/25°C, day/night; suboptimum, 18/12°C; chilling, 8/2°C; freezing, 2/-4°C) progressively in growth chambers. Low temperature (chilling and freezing) increased leaf electrolyte leakage (EL) and reduced plant growth, turf quality, chlorophyll (Chl) content, photochemical efficiency (Fv/Fm) and photosynthesis (Pn, net photosynthetic rate; gs, stomatal conductance; intercellular CO2; Tr, transpiration rate) in two genotypes, with more rapid changes in Latitude-22. Leaf carbohydrates content (glucose, fructose, sucrose, trehalose, fructan, starch) increased with the decreasing of temperature, to a great extend in Latitude-40. Leaf abscisic acid (ABA), salicylic acid (SA) and jasmonic acid (JA) content increased, while indole-3-acetic acid (IAA), gibberellic acid (GA3) and trans-zeatin ribside (t-ZR) content decreased with the reduction of temperature, with higher content in Latitude-40 than in Latitude-22. Chilling and freezing induced the up-regulation of C-repeat binding factor (ZjCBF), late embryogenesis abundant (ZjLEA3) and dehydration-responsive element binding (ZjDREB1) transcription factors in two genotypes, whereas those genes exhibited higher expression levels in Latitude-40, particularly under freezing temperature. These results suggested that zoysiagrass native to higher latitude exhibited higher freezing tolerance may attribute to the higher carbohydrates serving as energy reserves and stress protectants that stabilize cellular membranes. The phytohormones may serve signals in regulating plant growth, development and adaptation to low temperature as well as inducing the up-regulated ZjCBF, ZjLEA3 and ZjDREB1 expressions thus result in a higher cold tolerance.
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Affiliation(s)
- Shuangming Li
- Department of Pratacultural Sciences, College of Agronomy, Hunan Agricultural University, Changsha, Hunan, China
| | - Yong Yang
- Golf College, Hunan International Economics University, Changsha, Hunan, China
| | - Qiang Zhang
- Department of Pratacultural Sciences, College of Agronomy, Hunan Agricultural University, Changsha, Hunan, China
| | - Ningfang Liu
- Department of Pratacultural Sciences, College of Agronomy, Hunan Agricultural University, Changsha, Hunan, China
| | - Qingguo Xu
- Department of Pratacultural Sciences, College of Agronomy, Hunan Agricultural University, Changsha, Hunan, China
| | - Longxing Hu
- Department of Pratacultural Sciences, College of Agronomy, Hunan Agricultural University, Changsha, Hunan, China
- * E-mail:
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95
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Mikami K, Ito M, Taya K, Kishimoto I, Kobayashi T, Itabashi Y, Tanaka R. Parthenosporophytes of the brown alga Ectocarpus siliculosus exhibit sex-dependent differences in thermotolerance as well as fatty acid and sterol composition. MARINE ENVIRONMENTAL RESEARCH 2018; 137:188-195. [PMID: 29459067 DOI: 10.1016/j.marenvres.2018.02.003] [Citation(s) in RCA: 5] [Impact Index Per Article: 0.8] [Reference Citation Analysis] [Abstract] [Key Words] [MESH Headings] [Track Full Text] [Subscribe] [Scholar Register] [Received: 11/14/2017] [Revised: 01/31/2018] [Accepted: 02/07/2018] [Indexed: 05/11/2023]
Abstract
In the filamentous brown alga Ectocarpus siliculosus, male and female sex is expressed during the haploid parthenosporophyte phase of the life cycle. Here, we found that male parthenosporophytes displayed thermotolerance whereas female specimens displayed severely reduced viability at 25 °C and 28 °C. Profiling of polyunsaturated fatty acids showed that n-3 and n-6 were the predominant species in male and female parthenosporophytes, respectively, and that the n-3/n-6 fatty acid ratio was not affected by a temperature change. Both male and female parthenosporophytes contained the sterols fucosterol, cholesterol, and ergosterol, but these were present at higher levels at 10-25 °C in female specimens than in males. Thus, these fatty acids and sterols would be expected to make the membranes more rigid in the female compared to the male, which is opposite to the paradigm that increased rigidity confers thermotolerance. Our results suggest that the sex-dependent thermotolerance in E. siliculosus parthenosporophytes is not explained by the relationship between membrane fluidity and differences in fatty acids and sterol compositions.
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Affiliation(s)
- Koji Mikami
- Faculty of Fisheries Sciences, Hokkaido University, 3-1-1 Minato-cho, Hakodate 041-8611, Japan; College of Fisheries and Life Science, Shanghai Ocean University, 999 Huchenghuan Road, Lingang New City, Pudong District, Shanghai 201306, China.
| | - Meiko Ito
- Department of Marine Biology and Environmental Sciences, Faculty of Agriculture, Miyazaki University, Gakuen-Kibanadai-nishi 1-1, Miyazaki 889-2192, Japan
| | - Kensuke Taya
- Graduate School of Fisheries Sciences, Hokkaido University, 3-1-1 Minato-cho, Hakodate 041-8611, Japan
| | - Ikuya Kishimoto
- Graduate School of Fisheries Sciences, Hokkaido University, 3-1-1 Minato-cho, Hakodate 041-8611, Japan
| | - Takuya Kobayashi
- Graduate School of Fisheries Sciences, Hokkaido University, 3-1-1 Minato-cho, Hakodate 041-8611, Japan
| | - Yutaka Itabashi
- Faculty of Fisheries Sciences, Hokkaido University, 3-1-1 Minato-cho, Hakodate 041-8611, Japan
| | - Ryusuke Tanaka
- Department of Marine Biology and Environmental Sciences, Faculty of Agriculture, Miyazaki University, Gakuen-Kibanadai-nishi 1-1, Miyazaki 889-2192, Japan
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96
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Luo Q, Wei Q, Wang R, Zhang Y, Zhang F, He Y, Yang G, He G. Ectopic expression of BdCIPK31 confers enhanced low-temperature tolerance in transgenic tobacco plants. Acta Biochim Biophys Sin (Shanghai) 2018; 50:199-208. [PMID: 29309501 DOI: 10.1093/abbs/gmx140] [Citation(s) in RCA: 11] [Impact Index Per Article: 1.8] [Reference Citation Analysis] [Abstract] [Key Words] [MESH Headings] [Track Full Text] [Journal Information] [Subscribe] [Scholar Register] [Received: 07/12/2017] [Accepted: 12/04/2017] [Indexed: 11/12/2022] Open
Abstract
Calcineurin B-like protein (CBL), the Ca2+ sensor, and its interacting protein kinases (CIPKs) play essential roles in plants' response to stress. However, few studies have focused on the functions of CIPKs in low-temperature response. In the present study, BdCIPK31, a cold-responsive CIPK in Brachypodium distachyon, was found to participate in low-temperature response. Ectopic expression of BdCIPK31 conferred cold tolerance in transgenic tobaccos. Further analyses indicated that expression of BdCIPK31 improved ROS detoxication and omsoprotectant biosynthesis in transgenic plants under low-temperature treatment, suggesting that the BdCIPK31 functions positively in plant adaption to the cold-induced oxidative and osmotic stresses. Moreover, BdCIPK31 could upregulate the expressions of some representative stress-related genes under cold stress. In conclusion, these findings suggest that BdCIPK31 functions positively in plant cold response.
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Affiliation(s)
- Qingchen Luo
- The Genetic Engineering International Cooperation Base of Chinese Ministry of Science and Technology, Key Laboratory of Molecular Biophysics Ministry of Education, College of Life Science and Technology, Huazhong University of Science & Technology, Wuhan 430074, China
| | - Qiuhui Wei
- The Genetic Engineering International Cooperation Base of Chinese Ministry of Science and Technology, Key Laboratory of Molecular Biophysics Ministry of Education, College of Life Science and Technology, Huazhong University of Science & Technology, Wuhan 430074, China
| | - Ruibin Wang
- The Genetic Engineering International Cooperation Base of Chinese Ministry of Science and Technology, Key Laboratory of Molecular Biophysics Ministry of Education, College of Life Science and Technology, Huazhong University of Science & Technology, Wuhan 430074, China
| | - Yang Zhang
- The Genetic Engineering International Cooperation Base of Chinese Ministry of Science and Technology, Key Laboratory of Molecular Biophysics Ministry of Education, College of Life Science and Technology, Huazhong University of Science & Technology, Wuhan 430074, China
| | - Fan Zhang
- The Genetic Engineering International Cooperation Base of Chinese Ministry of Science and Technology, Key Laboratory of Molecular Biophysics Ministry of Education, College of Life Science and Technology, Huazhong University of Science & Technology, Wuhan 430074, China
| | - Yuan He
- The Genetic Engineering International Cooperation Base of Chinese Ministry of Science and Technology, Key Laboratory of Molecular Biophysics Ministry of Education, College of Life Science and Technology, Huazhong University of Science & Technology, Wuhan 430074, China
| | - Guangxiao Yang
- The Genetic Engineering International Cooperation Base of Chinese Ministry of Science and Technology, Key Laboratory of Molecular Biophysics Ministry of Education, College of Life Science and Technology, Huazhong University of Science & Technology, Wuhan 430074, China
| | - Guangyuan He
- The Genetic Engineering International Cooperation Base of Chinese Ministry of Science and Technology, Key Laboratory of Molecular Biophysics Ministry of Education, College of Life Science and Technology, Huazhong University of Science & Technology, Wuhan 430074, China
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97
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Fei Q, Li J, Luo Y, Ma K, Niu B, Mu C, Gao H, Li X. Plant molecular responses to the elevated ambient temperatures expected under global climate change. PLANT SIGNALING & BEHAVIOR 2018; 13:e1414123. [PMID: 29227189 PMCID: PMC5790401 DOI: 10.1080/15592324.2017.1414123] [Citation(s) in RCA: 2] [Impact Index Per Article: 0.3] [Reference Citation Analysis] [Abstract] [Key Words] [MESH Headings] [Track Full Text] [Subscribe] [Scholar Register] [Received: 11/20/2017] [Accepted: 12/04/2017] [Indexed: 05/29/2023]
Abstract
Environmental temperatures affect plant distribution, growth, and development. The Intergovernmental Panel on Climate Change (IPCC) predicts that global temperatures will rise by at least 1.5°C by the end of this century. Global temperature changes have already had a discernable impact on agriculture, phenology, and ecosystems. At the molecular level, extensive literature exists on the mechanism controlling plant responses to high temperature stress. However, few studies have focused on the molecular mechanisms behind plant responses to mild increases in ambient temperature. Previous research has found that moderately higher ambient temperatures can induce hypocotyl elongation and early flowering. Recent evidence demonstrates roles for the phytohormones auxin and ethylene in adaptive growth of plant roots to slightly higher ambient temperatures.
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Affiliation(s)
- Qionghui Fei
- Ministry of Education Key Laboratory of Cell Activities and Stress Adaptations, School of Life Sciences, Lanzhou University, Lanzhou, Gansu, China
| | - Jingjing Li
- Ministry of Education Key Laboratory of Cell Activities and Stress Adaptations, School of Life Sciences, Lanzhou University, Lanzhou, Gansu, China
| | - Yunhe Luo
- Ministry of Education Key Laboratory of Cell Activities and Stress Adaptations, School of Life Sciences, Lanzhou University, Lanzhou, Gansu, China
| | - Kun Ma
- Ministry of Education Key Laboratory of Cell Activities and Stress Adaptations, School of Life Sciences, Lanzhou University, Lanzhou, Gansu, China
| | - Bingtao Niu
- National Demonstration Center for Experimental Biology Education, School of Life Sciences, Lanzhou University, Lanzhou, Gansu, China
| | - Changjun Mu
- Ministry of Education Key Laboratory of Cell Activities and Stress Adaptations, School of Life Sciences, Lanzhou University, Lanzhou, Gansu, China
| | - Huanhuan Gao
- Ministry of Education Key Laboratory of Cell Activities and Stress Adaptations, School of Life Sciences, Lanzhou University, Lanzhou, Gansu, China
| | - Xiaofeng Li
- Ministry of Education Key Laboratory of Cell Activities and Stress Adaptations, School of Life Sciences, Lanzhou University, Lanzhou, Gansu, China
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98
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Niu Y, Xiang Y. An Overview of Biomembrane Functions in Plant Responses to High-Temperature Stress. FRONTIERS IN PLANT SCIENCE 2018; 9:915. [PMID: 30018629 PMCID: PMC6037897 DOI: 10.3389/fpls.2018.00915] [Citation(s) in RCA: 111] [Impact Index Per Article: 18.5] [Reference Citation Analysis] [Abstract] [Key Words] [Track Full Text] [Subscribe] [Scholar Register] [Received: 02/21/2018] [Accepted: 06/08/2018] [Indexed: 05/03/2023]
Abstract
Biological membranes are highly ordered structures consisting of mosaics of lipids and proteins. Elevated temperatures can directly and effectively change the properties of these membranes, including their fluidity and permeability, through a holistic effect that involves changes in the lipid composition and/or interactions between lipids and specific membrane proteins. Ultimately, high temperatures can alter microdomain remodeling and instantaneously relay ambient cues to downstream signaling pathways. Thus, dynamic membrane regulation not only helps cells perceive temperature changes but also participates in intracellular responses and determines a cell's fate. Moreover, due to the specific distribution of extra- and endomembrane elements, the plasma membrane (PM) and membranous organelles are individually responsible for distinct developmental events during plant adaptation to heat stress. This review describes recent studies that focused on the roles of various components that can alter the physical state of the plasma and thylakoid membranes as well as the crucial signaling pathways initiated through the membrane system, encompassing both endomembranes and membranous organelles in the context of heat stress responses.
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Affiliation(s)
- Yue Niu
- *Correspondence: Yue Niu, Yun Xiang,
| | - Yun Xiang
- *Correspondence: Yue Niu, Yun Xiang,
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99
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Oguchi R, Onoda Y, Terashima I, Tholen D. Leaf Anatomy and Function. THE LEAF: A PLATFORM FOR PERFORMING PHOTOSYNTHESIS 2018. [DOI: 10.1007/978-3-319-93594-2_5] [Citation(s) in RCA: 18] [Impact Index Per Article: 3.0] [Reference Citation Analysis] [Track Full Text] [Subscribe] [Scholar Register] [Indexed: 12/04/2022]
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100
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Hara M, Yamauchi N, Sumita Y. Monoterpenes induce the heat shock response in Arabidopsis. ACTA ACUST UNITED AC 2017; 73:177-184. [DOI: 10.1515/znc-2017-0116] [Citation(s) in RCA: 5] [Impact Index Per Article: 0.7] [Reference Citation Analysis] [Abstract] [Track Full Text] [Journal Information] [Subscribe] [Scholar Register] [Received: 06/24/2017] [Accepted: 10/27/2017] [Indexed: 11/15/2022]
Abstract
Abstract
Monoterpenes are common constituents of essential oils produced by plants. Although it has been reported that monoterpenes enhanced the heat tolerance of plants, the mechanism has not been elucidated. Here, we tested whether 13 monoterpenes promoted the heat shock response (HSR) in Arabidopsis. To assess the HSR-inducing activity of monoterpenes, we produced transgenic Arabidopsis, which has the β-glucuronidase gene driven by the promoter of a small heat shock protein (HSP17.6C-CI) gene. Results indicated that two monocyclic and four bicyclic monoterpenes showed HSR-inducing activities using the reporter gene system. In particular, (−)-perillaldehyde, which is a monocyclic monoterpene, demonstrated the most potent HSR-inducing activity. (−)-Perillaldehyde significantly inhibited the reduction of chlorophyll content by heat shock in Arabidopsis seedlings. Our previous study indicated that chemical HSR inducers such as geldanamycin and sanguinarine inhibited the activity of plant chaperones in vitro. (−)-Perillaldehyde also inhibited chaperone activity, indicating that it might promote the expression of heat shock protein genes by inhibiting chaperones in the plant cell.
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Affiliation(s)
- Masakazu Hara
- Research Institute of Green Science and Technology , Shizuoka University , 836 Ohya , Shizuoka 422-8529 , Japan , Phone: +81-54-238-5134, Fax: +81-54-238-5134
| | - Naoya Yamauchi
- Research Institute of Green Science and Technology , Shizuoka University , 836 Ohya , Shizuoka 422-8529 , Japan
| | - Yoshiki Sumita
- Research Institute of Green Science and Technology , Shizuoka University , 836 Ohya , Shizuoka 422-8529 , Japan
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