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Zhang Y, Zhao Z, Liu Z, Yao J, Yin K, Yan C, Zhang Y, Liu J, Li J, Zhao N, Zhao R, Zhou X, Chen S. Populus euphratica PeNADP-ME interacts with PePLDδ to mediate sodium and ROS homeostasis under salinity stress. PLANT PHYSIOLOGY AND BIOCHEMISTRY : PPB 2024; 210:108600. [PMID: 38593488 DOI: 10.1016/j.plaphy.2024.108600] [Citation(s) in RCA: 0] [Impact Index Per Article: 0] [Reference Citation Analysis] [Abstract] [Key Words] [MESH Headings] [Track Full Text] [Subscribe] [Scholar Register] [Received: 10/12/2023] [Revised: 03/16/2024] [Accepted: 04/03/2024] [Indexed: 04/11/2024]
Abstract
Populus euphratica phospholipase Dδ (PePLDδ) is transcriptionally regulated and mediates reactive oxygen species (ROS) and ion homeostasis under saline conditions. The purpose of this study is to explore the post-transcriptional regulation of PePLDδ in response to salt environment. P. euphratica PePLDδ was shown to interact with the NADP-dependent malic enzyme (NADP-ME) by screening the yeast two-hybrid libraries. The transcription level of PeNADP-ME increased upon salt exposure to NaCl (200 mM) in leaves and roots of P. euphratica. PeNADP-ME had a similar subcellular location with PePLDδ in the cytoplasm, and the interaction between PeNADP-ME and PePLDδ was further verified by GST pull-down and yeast two-hybrid. To clarify whether PeNADP-ME interacts with PePLDδ to enhance salt tolerance, PePLDδ and PeNADP-ME were overexpressed singly or doubly in Arabidopsis thaliana. Dual overexpression of PeNADP-ME and PePLDδ resulted in an even more pronounced improvement in salt tolerance compared with single transformants overexpressing PeNADP-ME or PePLDδ alone. Greater Na+ limitation and Na+ efflux in roots were observed in doubly overexpressed plants compared with singly overexpressed plants with PeNADP-ME or PePLDδ. Furthermore, NaCl stimulation of SOD, APX, and POD activity and transcription were more remarkable in the doubly overexpressed plants. It is noteworthy that the enzymic activity of NADP-ME and PLD, and total phosphatidic acid (PA) concentrations were significantly higher in the double-overexpressed plants than in the single transformants. We conclude that PeNADP-ME interacts with PePLDδ in Arabidopsis to promote PLD-derived PA signaling, conferring Na+ extrusion and ROS scavenging under salt stress.
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Affiliation(s)
- Ying Zhang
- State Key Laboratory of Efficient Production of Forest Resources, College of Biological Science and Biotechnology, Beijing Forestry University, Beijing, 100083, China
| | - Ziyan Zhao
- State Key Laboratory of Efficient Production of Forest Resources, College of Biological Science and Biotechnology, Beijing Forestry University, Beijing, 100083, China
| | - Zhe Liu
- State Key Laboratory of Efficient Production of Forest Resources, College of Biological Science and Biotechnology, Beijing Forestry University, Beijing, 100083, China
| | - Jun Yao
- Guangdong Provincial Key Laboratory of Silviculture, Protection and Utilization, Guangdong Academy of Forestry, Guangzhou, 510520, China
| | - Kexin Yin
- State Key Laboratory of Efficient Production of Forest Resources, College of Biological Science and Biotechnology, Beijing Forestry University, Beijing, 100083, China
| | - Caixia Yan
- State Key Laboratory of Efficient Production of Forest Resources, College of Biological Science and Biotechnology, Beijing Forestry University, Beijing, 100083, China
| | - Yanli Zhang
- State Key Laboratory of Efficient Production of Forest Resources, College of Biological Science and Biotechnology, Beijing Forestry University, Beijing, 100083, China
| | - Jian Liu
- State Key Laboratory of Efficient Production of Forest Resources, College of Biological Science and Biotechnology, Beijing Forestry University, Beijing, 100083, China
| | - Jing Li
- State Key Laboratory of Efficient Production of Forest Resources, College of Biological Science and Biotechnology, Beijing Forestry University, Beijing, 100083, China
| | - Nan Zhao
- State Key Laboratory of Efficient Production of Forest Resources, College of Biological Science and Biotechnology, Beijing Forestry University, Beijing, 100083, China
| | - Rui Zhao
- State Key Laboratory of Efficient Production of Forest Resources, College of Biological Science and Biotechnology, Beijing Forestry University, Beijing, 100083, China
| | - Xiaoyang Zhou
- State Key Laboratory of Efficient Production of Forest Resources, College of Biological Science and Biotechnology, Beijing Forestry University, Beijing, 100083, China
| | - Shaoliang Chen
- State Key Laboratory of Efficient Production of Forest Resources, College of Biological Science and Biotechnology, Beijing Forestry University, Beijing, 100083, China.
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Taboada J, González-Gordo S, Muñoz-Vargas MA, Palma JM, Corpas FJ. NADP-Dependent Malic Enzyme Genes in Sweet Pepper Fruits: Involvement in Ripening and Modulation by Nitric Oxide (NO). PLANTS (BASEL, SWITZERLAND) 2023; 12:2353. [PMID: 37375977 DOI: 10.3390/plants12122353] [Citation(s) in RCA: 0] [Impact Index Per Article: 0] [Reference Citation Analysis] [Abstract] [Key Words] [Grants] [Track Full Text] [Subscribe] [Scholar Register] [Received: 05/18/2023] [Revised: 06/01/2023] [Accepted: 06/14/2023] [Indexed: 06/29/2023]
Abstract
NADPH is an indispensable cofactor in a wide range of physiological processes that is generated by a family of NADPH dehydrogenases, of which the NADP-dependent malic enzyme (NADP-ME) is a member. Pepper (Capsicum annuum L.) fruit is a horticultural product consumed worldwide that has great nutritional and economic relevance. Besides the phenotypical changes that pepper fruit undergoes during ripening, there are many associated modifications at transcriptomic, proteome, biochemical and metabolic levels. Nitric oxide (NO) is a recognized signal molecule with regulatory functions in diverse plant processes. To our knowledge, there is very scarce information about the number of genes encoding for NADP-ME in pepper plants and their expression during the ripening of sweet pepper fruit. Using a data mining approach to evaluate the pepper plant genome and fruit transcriptome (RNA-seq), five NADP-ME genes were identified, and four of them, namely CaNADP-ME2 to CaNADP-ME5, were expressed in fruit. The time course expression analysis of these genes during different fruit ripening stages, including green immature (G), breaking point (BP) and red ripe (R), showed that they were differentially modulated. Thus, while CaNADP-ME3 and CaNADP-ME5 were upregulated, CaNADP-ME2 and CaNADP-ME4 were downregulated. Exogenous NO treatment of fruit triggered the downregulation of CaNADP-ME4. We obtained a 50-75% ammonium-sulfate-enriched protein fraction containing CaNADP-ME enzyme activity, and this was assayed via non-denaturing polyacrylamide gel electrophoresis (PAGE). The results allow us to identify four isozymes designated from CaNADP-ME I to CaNADP-ME IV. Taken together, the data provide new pieces of information on the CaNADP-ME system with the identification of five CaNADP-ME genes and how the four genes expressed in pepper fruits are modulated during ripening and exogenous NO gas treatment.
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Affiliation(s)
- Jorge Taboada
- Department of Stress, Development and Signaling in Plants, Group of Antioxidants, Free Radicals and Nitric Oxide in Biotechnology, Food and Agriculture, Estación Experimental del Zaidín (Spanish National Research Council, CSIC), C/Profesor Albareda, 1, 18008 Granada, Spain
| | - Salvador González-Gordo
- Department of Stress, Development and Signaling in Plants, Group of Antioxidants, Free Radicals and Nitric Oxide in Biotechnology, Food and Agriculture, Estación Experimental del Zaidín (Spanish National Research Council, CSIC), C/Profesor Albareda, 1, 18008 Granada, Spain
| | - María A Muñoz-Vargas
- Department of Stress, Development and Signaling in Plants, Group of Antioxidants, Free Radicals and Nitric Oxide in Biotechnology, Food and Agriculture, Estación Experimental del Zaidín (Spanish National Research Council, CSIC), C/Profesor Albareda, 1, 18008 Granada, Spain
| | - José M Palma
- Department of Stress, Development and Signaling in Plants, Group of Antioxidants, Free Radicals and Nitric Oxide in Biotechnology, Food and Agriculture, Estación Experimental del Zaidín (Spanish National Research Council, CSIC), C/Profesor Albareda, 1, 18008 Granada, Spain
| | - Francisco J Corpas
- Department of Stress, Development and Signaling in Plants, Group of Antioxidants, Free Radicals and Nitric Oxide in Biotechnology, Food and Agriculture, Estación Experimental del Zaidín (Spanish National Research Council, CSIC), C/Profesor Albareda, 1, 18008 Granada, Spain
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Raza A, Charagh S, Abbas S, Hassan MU, Saeed F, Haider S, Sharif R, Anand A, Corpas FJ, Jin W, Varshney RK. Assessment of proline function in higher plants under extreme temperatures. PLANT BIOLOGY (STUTTGART, GERMANY) 2023; 25:379-395. [PMID: 36748909 DOI: 10.1111/plb.13510] [Citation(s) in RCA: 25] [Impact Index Per Article: 25.0] [Reference Citation Analysis] [Abstract] [Key Words] [MESH Headings] [Track Full Text] [Subscribe] [Scholar Register] [Received: 01/07/2023] [Accepted: 01/30/2023] [Indexed: 06/18/2023]
Abstract
Climate change and abiotic stress factors are key players in crop losses worldwide. Among which, extreme temperatures (heat and cold) disturb plant growth and development, reduce productivity and, in severe cases, lead to plant death. Plants have developed numerous strategies to mitigate the detrimental impact of temperature stress. Exposure to stress leads to the accumulation of various metabolites, e.g. sugars, sugar alcohols, organic acids and amino acids. Plants accumulate the amino acid 'proline' in response to several abiotic stresses, including temperature stress. Proline abundance may result from de novo synthesis, hydrolysis of proteins, reduced utilization or degradation. Proline also leads to stress tolerance by maintaining the osmotic balance (still controversial), cell turgidity and indirectly modulating metabolism of reactive oxygen species. Furthermore, the crosstalk of proline with other osmoprotectants and signalling molecules, e.g. glycine betaine, abscisic acid, nitric oxide, hydrogen sulfide, soluble sugars, helps to strengthen protective mechanisms in stressful environments. Development of less temperature-responsive cultivars can be achieved by manipulating the biosynthesis of proline through genetic engineering. This review presents an overview of plant responses to extreme temperatures and an outline of proline metabolism under such temperatures. The exogenous application of proline as a protective molecule under extreme temperatures is also presented. Proline crosstalk and interaction with other molecules is also discussed. Finally, the potential of genetic engineering of proline-related genes is explained to develop 'temperature-smart' plants. In short, exogenous application of proline and genetic engineering of proline genes promise ways forward for developing 'temperature-smart' future crop plants.
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Affiliation(s)
- A Raza
- College of Agriculture, Fujian Agriculture and Forestry University (FAFU), Fuzhou, China
| | - S Charagh
- State Key Laboratory of Rice Biology, China National Rice Research Institute, Chinese Academy of Agricultural Sciences (CAAS), Hangzhou, China
| | - S Abbas
- Department of Botany, Faculty of Life Sciences, Government College University, Faisalabad, Pakistan
| | - M U Hassan
- Research Center on Ecological Sciences, Jiangxi Agricultural University, Nanchang, China
| | - F Saeed
- Department of Agricultural Genetic Engineering, Faculty of Agricultural Sciences and Technologies, Nigde Omer Halisdemir University, Nigde, Turkey
| | - S Haider
- Plant Biochemistry and Molecular Biology Lab, Department of Plant Sciences, Quaid-i-Azam University, Islamabad, Pakistan
| | - R Sharif
- Department of Horticulture, School of Horticulture and Landscape, Yangzhou University, Yangzhou, China
| | - A Anand
- Division of Plant Physiology, ICAR-Indian Agricultural Research Institute, Pusa, New Delhi, India
| | - F J Corpas
- Group of Antioxidants, Free Radicals and Nitric Oxide in Biotechnology, Food and Agriculture, Department of Stress, Development and Signaling in Plants, Estación Experimental del Zaidín, Spanish National Research Council, CSIC, Granada, Spain
| | - W Jin
- Key Laboratory of Biology and Genetic Improvement of Horticultural Crops (North China), Institute of Forestry and Pomology, Beijing Academy of Agriculture and Forestry Sciences, Beijing, China
| | - R K Varshney
- State Agricultural Biotechnology Centre, Centre for Crop and Food Innovation, Murdoch University, Murdoch, WA, Australia
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Islam S, Shah SH, Corpas FJ, Alamri S, Mohammad F. Plant growth regulators mediated mitigation of salt-induced toxicities in mustard (Brassica juncea L.) by modifying the inherent defense system. PLANT PHYSIOLOGY AND BIOCHEMISTRY : PPB 2023; 196:1002-1018. [PMID: 36898213 DOI: 10.1016/j.plaphy.2023.02.053] [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: 12/22/2022] [Revised: 02/08/2023] [Accepted: 02/25/2023] [Indexed: 06/18/2023]
Abstract
Salt stress is one of the common environmental threats to crop growth, development, and productivity. Plant growth regulators (PGRs) are natural messengers and are known to play pivotal roles at different stages of the growth and development of plants under various environmental conditions. Keeping in mind the importance of PGRs in stress management, a factorial randomized pot experiment was conducted to evaluate the efficiency of three selected PGRs, namely gibberellic acid (GA3), salicylic acid (SA) and triacontanol (Tria) for the amelioration of NaCl stress in mustard. Plants were subjected to four concentrations of NaCl (0, 50, 100 and 150 mM). Two foliar sprays of PGRs (GA3, SA and Tria), each at 5 μM were applied to the foliage of plants using a hand sprayer. The increasing levels of NaCl decreased growth, physio-biochemical, histochemical and yield parameters in a dose-dependent manner while increasing activities of antioxidant enzymes, contents of osmolytes and oxidative stress biomarkers linearly with increasing levels of NaCl. The spray of GA3, SA and Tria under stressed-free and stressed conditions improved the aforesaid attributes while decreasing the generation of stress biomarkers. Of sprayed PGRs, SA proved to be the best for alleviating the adverse effect of NaCl stress. Furthermore, it provides experimental data for its possible biotechnological applications in mustard crops exposed to high concentrations of salinity and possibly to other environmental stresses which have associated oxidative stress.
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Affiliation(s)
- Shaistul Islam
- Advanced Plant Physiology Section, Department of Botany, Aligarh Muslim University, Aligarh, 202002, India.
| | - Sajad Hussain Shah
- Advanced Plant Physiology Section, Department of Botany, Aligarh Muslim University, Aligarh, 202002, India
| | - Francisco J Corpas
- Group of Antioxidants, Free Radicals and Nitric Oxide in Biotechnology, Food and Agriculture, Estación Experimental del Zaidín, Spanish National Research Council (CSIC), Profesor Albareda 1, E-18008, Granada, Spain
| | - Saud Alamri
- Department of Botany and Microbiology, College of Science, King Saud University, Riyadh, 11451, Saudi Arabia
| | - Firoz Mohammad
- Advanced Plant Physiology Section, Department of Botany, Aligarh Muslim University, Aligarh, 202002, India.
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Potassium (K+) Starvation-Induced Oxidative Stress Triggers a General Boost of Antioxidant and NADPH-Generating Systems in the Halophyte Cakile maritima. Antioxidants (Basel) 2022; 11:antiox11020401. [PMID: 35204284 PMCID: PMC8869740 DOI: 10.3390/antiox11020401] [Citation(s) in RCA: 8] [Impact Index Per Article: 4.0] [Reference Citation Analysis] [Abstract] [Track Full Text] [Download PDF] [Figures] [Journal Information] [Subscribe] [Scholar Register] [Received: 01/11/2022] [Revised: 02/11/2022] [Accepted: 02/14/2022] [Indexed: 12/26/2022] Open
Abstract
Potassium (K+) is an essential macro-element for plant growth and development given its implication in major processes such as photosynthesis, osmoregulation, protein synthesis, and enzyme function. Using 30-day-old Cakile maritima plants as halophyte model grown under K+ deprivation for 15 days, it was analyzed at the biochemical level to determine the metabolism of reactive oxygen species (ROS), key photorespiratory enzymes, and the main NADPH-generating systems. K+ starvation-induced oxidative stress was noticed by high malondialdehyde (MDA) content associated with an increase of superoxide radical (O2•−) in leaves from K+-deficient plants. K+ shortage led to an overall increase in the activity of hydroxypyruvate reductase (HPR) and glycolate oxidase (GOX), as well as of antioxidant enzymes catalase (CAT), those of the ascorbate-glutathione cycle, peroxidase (POX), and superoxide dismutase (SOD), and the main enzymes involved in the NADPH generation in both leaves and roots. Especially remarkable was the induction of up to seven CuZn-SOD isozymes in leaves due to K+ deficiency. As a whole, data show that the K+ starvation has associated oxidative stress that boosts a biochemical response leading to a general increase of the antioxidant and NADPH-generating systems that allow the survival of the halophyte Cakile maritima.
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Laus MN, De Santis MA, Flagella Z, Soccio M. Changes in Antioxidant Defence System in Durum Wheat under Hyperosmotic Stress: A Concise Overview. PLANTS (BASEL, SWITZERLAND) 2021; 11:plants11010098. [PMID: 35009101 PMCID: PMC8747421 DOI: 10.3390/plants11010098] [Citation(s) in RCA: 1] [Impact Index Per Article: 0.3] [Reference Citation Analysis] [Abstract] [Key Words] [Track Full Text] [Subscribe] [Scholar Register] [Received: 11/18/2021] [Revised: 12/23/2021] [Accepted: 12/27/2021] [Indexed: 05/09/2023]
Abstract
Durum wheat is one of the most commonly cultivated species in the world and represents a key commodity for many areas worldwide, as its grain is used for production of many foods, such as pasta, bread, couscous, and bourghul. Durum wheat grain has a relevant role in the human diet, providing carbohydrates, proteins, lipids, fibres, vitamins, and minerals, as well as highly valued bioactive compounds contributing to a healthy diet. Durum wheat is largely cultivated in the Mediterranean basin, where it is mainly grown under rain-fed conditions, thus currently undergoing drought stress, as well as soil salinity, which can hamper yield potential and influence the qualitative characteristics of grain. When plants suffer drought and/or salinity stress, a condition known as hyperosmotic stress is established at cellular level. This leads to the accumulation of ROS thus generating in turn an oxidative stress condition, which can ultimately result in the impairment of cellular integrity and functionality. To counteract oxidative damage due to excessive ROS production under stress, plants have evolved a complex array of both enzymatic and non-enzymatic antioxidant mechanisms, working jointly and synergically for maintenance of ROS homeostasis. Enhancement of antioxidant defence system has been demonstrated as an adaptive mechanism associated to an increased tolerance to hyperosmotic stress. In the light of these considerations, this review provides a concise overview on recent advancements regarding the role of the ascorbate-glutathione cycle and the main antioxidant enzymes (superoxide dismutase, catalase, and peroxidases) in durum wheat response to drought and salt stresses that are expected to become more and more frequent due to the ongoing climate changes.
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Shen LY, Luo H, Wang XL, Wang XM, Qiu XJ, Liu H, Zhou SS, Jia KH, Nie S, Bao YT, Zhang RG, Yun QZ, Chai YH, Lu JY, Li Y, Zhao SW, Mao JF, Jia SG, Mao YM. Chromosome-Scale Genome Assembly for Chinese Sour Jujube and Insights Into Its Genome Evolution and Domestication Signature. FRONTIERS IN PLANT SCIENCE 2021; 12:773090. [PMID: 34899800 PMCID: PMC8652243 DOI: 10.3389/fpls.2021.773090] [Citation(s) in RCA: 3] [Impact Index Per Article: 1.0] [Reference Citation Analysis] [Abstract] [Key Words] [Track Full Text] [Subscribe] [Scholar Register] [Received: 09/09/2021] [Accepted: 10/18/2021] [Indexed: 05/03/2023]
Abstract
Sour or wild jujube fruits and dried seeds are popular food all over the world. In this study, we reported a high-quality genome assembly of sour jujube (Ziziphus jujuba Mill. var. spinosa), with a size of 406 Mbp and scaffold N50 of 30.3 Mbp, which experienced only γ hexaploidization event, without recent genome duplication. Population structure analysis identified four jujube subgroups (two domesticated ones, i.e., D1 in West China and D2 in East/SouthEast China, semi-wild, and wild), which underwent an evolutionary history of a significant decline of effective population size during the Last Glacial Period. The respective selection signatures of three subgroups were discovered, such as strong peaks on chromosomes #3 in D1, #1 in D2, and #4 in wild. Genes under the most significant selection on chromosomes #4 in wild were confirmed to be involved in fruit variations among jujube accessions, in transcriptomic analysis. Our study offered novel insights into the jujube population structure and domestication and provided valuable genomic resources for jujube improvement in stress response and fruit flavor in the future.
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Affiliation(s)
- Lian-Ying Shen
- Research Center of Chinese Jujube, Hebei Agricultural University, Baoding, China
| | - Hang Luo
- Beijing Advanced Innovation Center for Tree Breeding by Molecular Design, National Engineering Laboratory for Tree Breeding, College of Biological Sciences and Technology, Beijing Forestry University, Beijing, China
| | - Xiao-Ling Wang
- Research Center of Chinese Jujube, Hebei Agricultural University, Baoding, China
| | - Xue-Meng Wang
- College of Grassland Science and Technology, China Agricultural University, Beijing, China
| | - Xiao-Jing Qiu
- Research Center of Chinese Jujube, Hebei Agricultural University, Baoding, China
| | - Hui Liu
- Beijing Advanced Innovation Center for Tree Breeding by Molecular Design, National Engineering Laboratory for Tree Breeding, College of Biological Sciences and Technology, Beijing Forestry University, Beijing, China
| | - Shan-Shan Zhou
- Beijing Advanced Innovation Center for Tree Breeding by Molecular Design, National Engineering Laboratory for Tree Breeding, College of Biological Sciences and Technology, Beijing Forestry University, Beijing, China
| | - Kai-Hua Jia
- Beijing Advanced Innovation Center for Tree Breeding by Molecular Design, National Engineering Laboratory for Tree Breeding, College of Biological Sciences and Technology, Beijing Forestry University, Beijing, China
| | - Shuai Nie
- Beijing Advanced Innovation Center for Tree Breeding by Molecular Design, National Engineering Laboratory for Tree Breeding, College of Biological Sciences and Technology, Beijing Forestry University, Beijing, China
| | - Yu-Tao Bao
- Beijing Advanced Innovation Center for Tree Breeding by Molecular Design, National Engineering Laboratory for Tree Breeding, College of Biological Sciences and Technology, Beijing Forestry University, Beijing, China
| | - Ren-Gang Zhang
- Beijing Ori-Gene Science and Technology Co., Ltd., Beijing, China
| | - Quan-Zheng Yun
- Beijing Ori-Gene Science and Technology Co., Ltd., Beijing, China
| | - Ying-Hui Chai
- Beijing Ori-Gene Science and Technology Co., Ltd., Beijing, China
| | - Jin-Ying Lu
- Shenzhou Space Biotechnology Group, China Academy of Space Technology (CAST), Beijing, China
| | - Yu Li
- Institute of Geographic Sciences and Natural Resources Research, Chinese Academy of Sciences (CAS), Beijing, China
| | - Shu-Wei Zhao
- Hebei Hemuliyuan Agricultural Science and Technology Co. Ltd., Baoding, China
| | - Jian-Feng Mao
- Beijing Advanced Innovation Center for Tree Breeding by Molecular Design, National Engineering Laboratory for Tree Breeding, College of Biological Sciences and Technology, Beijing Forestry University, Beijing, China
| | - Shan-Gang Jia
- College of Grassland Science and Technology, China Agricultural University, Beijing, China
| | - Yong-Min Mao
- Research Center of Chinese Jujube, Hebei Agricultural University, Baoding, China
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Dubey AK, Khatri K, Jha B, Rathore MS. The novel galactosyl transferase-like (SbGalT) gene from Salicornia brachiata maintains photosynthesis and enhances abiotic stress tolerance in transgenic tobacco. Gene 2021; 786:145597. [PMID: 33766708 DOI: 10.1016/j.gene.2021.145597] [Citation(s) in RCA: 6] [Impact Index Per Article: 2.0] [Reference Citation Analysis] [Abstract] [Key Words] [MESH Headings] [Track Full Text] [Journal Information] [Subscribe] [Scholar Register] [Received: 01/12/2021] [Revised: 03/09/2021] [Accepted: 03/16/2021] [Indexed: 11/25/2022]
Abstract
We hereby report in planta function characterization of a novel galactosyl transferase-like (SbGalT) gene from Salicornia brachiata for enhanced abiotic stress tolerance. The SbGalT gene had an open reading frame of 1563 bp. The ectopic expression of SbGalT gene in tobacco improved the seed germination, seedling growth, biomass accumulation and potassium/sodium ratio under salt and osmotic stress. The SbGalT over-expression delayed stress-induced senescence, pigment break-down and ion induced cytotoxicity in tobacco. Higher contents of organic solutes and potassium under stress maintained the osmotic homeostasis and relative water content in tobacco. Higher activity of antioxidant enzymes under stress in transgenic tobacco curtailed the accumulation of reactive oxygen species (ROS) and maintained the membrane integrity. The chlorophyll a fluorescence transient indicated no effects of the imposed strengths of stress on basal state of photosystem (PS) I in transgenic tobacco over-expressing the SbGalT gene. Due to improved membrane integrity, the transgenic tobacco exhibited improved photosynthesis, stomatal conductance, intercellular CO2, transpiration, maximum quantum yield and operating efficiency of PSII, electron transport, photochemical and non-photochemical quenching. In agreement with photosynthesis, physiological health, tolerance index and growth parameters, transgenic tobacco accumulated higher contents of sugar, starch, amino acid, polyphenol and proline under stress conditions. The multivariate data analysis exhibited significant statistical distinctions among osmotic adjustment, physiological health and growth, and photosynthetic responses in control and SbGalT transgenic tobacco under stress conditions. The results strongly indicated novel SbGalT gene as a potential candidate for developing the smart agriculture.
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Affiliation(s)
- Ashish K Dubey
- Applied Phycology and Biotechnology, CSIR-Central Salt and Marine Chemicals Research Institute (CSIR-CSMCRI), Council of Scientific and Industrial Research (CSIR), Bhavnagar, Gujarat 364001, India
| | - Kusum Khatri
- Applied Phycology and Biotechnology, CSIR-Central Salt and Marine Chemicals Research Institute (CSIR-CSMCRI), Council of Scientific and Industrial Research (CSIR), Bhavnagar, Gujarat 364001, India
| | - Bhavanath Jha
- Applied Phycology and Biotechnology, CSIR-Central Salt and Marine Chemicals Research Institute (CSIR-CSMCRI), Council of Scientific and Industrial Research (CSIR), Bhavnagar, Gujarat 364001, India
| | - Mangal S Rathore
- Applied Phycology and Biotechnology, CSIR-Central Salt and Marine Chemicals Research Institute (CSIR-CSMCRI), Council of Scientific and Industrial Research (CSIR), Bhavnagar, Gujarat 364001, India.
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Sánchez-McSweeney A, González-Gordo S, Aranda-Sicilia MN, Rodríguez-Rosales MP, Venema K, Palma JM, Corpas FJ. Loss of function of the chloroplast membrane K +/H + antiporters AtKEA1 and AtKEA2 alters the ROS and NO metabolism but promotes drought stress resilience. PLANT PHYSIOLOGY AND BIOCHEMISTRY : PPB 2021; 160:106-119. [PMID: 33485149 DOI: 10.1016/j.plaphy.2021.01.010] [Citation(s) in RCA: 18] [Impact Index Per Article: 6.0] [Reference Citation Analysis] [Abstract] [Key Words] [MESH Headings] [Track Full Text] [Subscribe] [Scholar Register] [Received: 12/09/2020] [Accepted: 01/08/2021] [Indexed: 05/28/2023]
Abstract
Potassium (K+) exerts key physiological functions such as osmoregulation, stomatal movement, membrane transport, protein synthesis and photosynthesis among others. Previously, it was demonstrated in Arabidopsis thaliana that the loss of function of the chloroplast K+Efflux Antiporters KEA1 and KEA2, located in the inner envelope membrane, provokes inefficient photosynthesis. Therefore, the main goal of this study was to evaluate the potential impact of the loss of function of those cation transport systems in the metabolism of reactive oxygen and nitrogen species (ROS and RNS). Using 14-day-old seedlings from Arabidopsis double knock-out kea1kea2 mutants, ROS metabolism and NO content in roots and green cotyledons were studied at the biochemical level. The loss of function of AtKEA1 and AtKEA2 did not cause oxidative stress but it provoked an alteration of the ROS homeostasis affecting some ROS-generating enzymes. These included glycolate oxidase (GOX) and NADPH-dependent superoxide generation activity, enzymatic and non-enzymatic antioxidants and both NADP-isocitrate dehydrogenase and NADP-malic enzyme activities. NO content, analyzed by confocal laser scanning microscopy (CLSM), was negatively affected in both photosynthetic and non-photosynthetic organs in kea1kea2 mutant seedlings. Furthermore, the S-nitrosoglutathione reductase (GSNOR) protein expression and activity were downregulated in kea1kea2 mutants, whereas the tyrosine nitrated protein profile, analyzed by immunoblot, was unaffected but the relative expression of each immunoreactive band changed. Moreover, kea1kea2 mutants showed an increased photorespiratory pathway and stomata closure, thus promoting a higher resilience to drought stress. Data suggest that the chloroplast osmotic balance and integrity maintained by AtKEA1 and AtKEA2 are necessary to keep the balance of ROS/RNS metabolism. Moreover, these data open new questions about how endogenous NO generation might be affected by the K+/H+ transport located in the chloroplasts.
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Affiliation(s)
| | - Salvador González-Gordo
- Group of Antioxidants, Free Radicals and Nitric Oxide in Biotechnology, Food and Agriculture, Spain
| | - María Nieves Aranda-Sicilia
- Group of Ion Homeostasis, Department of Biochemistry, Cell and Molecular Biology of Plants, Estación Experimental Del Zaidín, CSIC, C/ Profesor Albareda, 1, 18008, Granada, Spain
| | - María Pilar Rodríguez-Rosales
- Group of Ion Homeostasis, Department of Biochemistry, Cell and Molecular Biology of Plants, Estación Experimental Del Zaidín, CSIC, C/ Profesor Albareda, 1, 18008, Granada, Spain
| | - Kees Venema
- Group of Ion Homeostasis, Department of Biochemistry, Cell and Molecular Biology of Plants, Estación Experimental Del Zaidín, CSIC, C/ Profesor Albareda, 1, 18008, Granada, Spain
| | - José M Palma
- Group of Antioxidants, Free Radicals and Nitric Oxide in Biotechnology, Food and Agriculture, Spain
| | - Francisco J Corpas
- Group of Antioxidants, Free Radicals and Nitric Oxide in Biotechnology, Food and Agriculture, Spain.
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Corpas FJ, González-Gordo S, Palma JM. Nitric oxide and hydrogen sulfide modulate the NADPH-generating enzymatic system in higher plants. JOURNAL OF EXPERIMENTAL BOTANY 2021; 72:830-847. [PMID: 32945878 DOI: 10.1093/jxb/eraa440] [Citation(s) in RCA: 38] [Impact Index Per Article: 12.7] [Reference Citation Analysis] [Abstract] [Key Words] [MESH Headings] [Track Full Text] [Subscribe] [Scholar Register] [Received: 06/01/2020] [Accepted: 09/16/2020] [Indexed: 06/11/2023]
Abstract
Nitric oxide (NO) and hydrogen sulfide (H2S) are two key molecules in plant cells that participate, directly or indirectly, as regulators of protein functions through derived post-translational modifications, mainly tyrosine nitration, S-nitrosation, and persulfidation. These post-translational modifications allow the participation of both NO and H2S signal molecules in a wide range of cellular processes either physiological or under stressful circumstances. NADPH participates in cellular redox status and it is a key cofactor necessary for cell growth and development. It is involved in significant biochemical routes such as fatty acid, carotenoid and proline biosynthesis, and the shikimate pathway, as well as in cellular detoxification processes including the ascorbate-glutathione cycle, the NADPH-dependent thioredoxin reductase (NTR), or the superoxide-generating NADPH oxidase. Plant cells have diverse mechanisms to generate NADPH by a group of NADP-dependent oxidoreductases including ferredoxin-NADP reductase (FNR), NADP-glyceraldehyde-3-phosphate dehydrogenase (NADP-GAPDH), NADP-dependent malic enzyme (NADP-ME), NADP-dependent isocitrate dehydrogenase (NADP-ICDH), and both enzymes of the oxidative pentose phosphate pathway, designated as glucose-6-phosphate dehydrogenase (G6PDH) and 6-phosphogluconate dehydrogenase (6PGDH). These enzymes consist of different isozymes located in diverse subcellular compartments (chloroplasts, cytosol, mitochondria, and peroxisomes) which contribute to the NAPDH cellular pool. We provide a comprehensive overview of how post-translational modifications promoted by NO (tyrosine nitration and S-nitrosation), H2S (persulfidation), and glutathione (glutathionylation), affect the cellular redox status through regulation of the NADP-dependent dehydrogenases.
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Affiliation(s)
- Francisco J Corpas
- Group of Antioxidant, Free Radical and Nitric Oxide in Biotechnology, Food and Agriculture, Department of Biochemistry, Cell and Molecular Biology of Plants, Estación Experimental del Zaidín, CSIC, C/ Profesor Albareda, Granada, Spain
| | - Salvador González-Gordo
- Group of Antioxidant, Free Radical and Nitric Oxide in Biotechnology, Food and Agriculture, Department of Biochemistry, Cell and Molecular Biology of Plants, Estación Experimental del Zaidín, CSIC, C/ Profesor Albareda, Granada, Spain
| | - José M Palma
- Group of Antioxidant, Free Radical and Nitric Oxide in Biotechnology, Food and Agriculture, Department of Biochemistry, Cell and Molecular Biology of Plants, Estación Experimental del Zaidín, CSIC, C/ Profesor Albareda, Granada, Spain
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Muñoz-Vargas MA, González-Gordo S, Palma JM, Corpas FJ. Inhibition of NADP-malic enzyme activity by H 2 S and NO in sweet pepper (Capsicum annuum L.) fruits. PHYSIOLOGIA PLANTARUM 2020; 168:278-288. [PMID: 31152557 DOI: 10.1111/ppl.13000] [Citation(s) in RCA: 10] [Impact Index Per Article: 2.5] [Reference Citation Analysis] [Abstract] [MESH Headings] [Track Full Text] [Subscribe] [Scholar Register] [Received: 04/20/2019] [Revised: 05/21/2019] [Accepted: 05/28/2019] [Indexed: 05/20/2023]
Abstract
NADPH is an essential cofactor in many physiological processes. Fruit ripening is caused by multiple biochemical pathways in which, reactive oxygen and nitrogen species (ROS/RNS) metabolism is involved. Previous studies have demonstrated the differential modulation of nitric oxide (NO) and hydrogen sulfide (H2 S) content during sweet pepper (Capsicum annuum L.) fruit ripening, both of which regulate NADP-isocitrate dehydrogenase activity. To gain a deeper understanding of the potential functions of other NADPH-generating components, we analyzed glucose-6-phosphate dehydrogenase (G6PDH) and 6-phosphogluconate dehydrogenase (6PGDH), which are involved in the oxidative phase of the pentose phosphate pathway (OxPPP) and NADP-malic enzyme (NADP-ME). During fruit ripening, G6PDH activity diminished by 38%, while 6PGDH and NADP-ME activity increased 1.5- and 2.6-fold, respectively. To better understand the potential regulation of these NADP-dehydrogenases by H2 S, we obtained a 50-75% ammonium-sulfate-enriched protein fraction containing these proteins. With the aid of in vitro assays, in the presence of H2 S, we observed that, while NADP-ME activity was inhibited by up to 29-32% using 2 and 5 mM Na2 S as H2 S donor, G6PDH and 6PGDH activities were unaffected. On the other hand, NO donors, S-nitrosocyteine (CysNO) and DETA NONOate also inhibited NADP-ME activity by 35%. These findings suggest that both NADP-ME and 6PGDH play an important role in maintaining the supply of NADPH during pepper fruit ripening and that H2 S and NO partially modulate the NADPH-generating system.
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Affiliation(s)
- María A Muñoz-Vargas
- Group of Antioxidants, Free Radicals and Nitric Oxide in Biotechnology, Food and Agriculture, Department of Biochemistry, Cell and Molecular Biology of Plants, Estación Experimental del Zaidín, Consejo Superior de Investigaciones Científicas (CSIC), 18008, Granada, Spain
| | - Salvador González-Gordo
- Group of Antioxidants, Free Radicals and Nitric Oxide in Biotechnology, Food and Agriculture, Department of Biochemistry, Cell and Molecular Biology of Plants, Estación Experimental del Zaidín, Consejo Superior de Investigaciones Científicas (CSIC), 18008, Granada, Spain
| | - José M Palma
- Group of Antioxidants, Free Radicals and Nitric Oxide in Biotechnology, Food and Agriculture, Department of Biochemistry, Cell and Molecular Biology of Plants, Estación Experimental del Zaidín, Consejo Superior de Investigaciones Científicas (CSIC), 18008, Granada, Spain
| | - Francisco J Corpas
- Group of Antioxidants, Free Radicals and Nitric Oxide in Biotechnology, Food and Agriculture, Department of Biochemistry, Cell and Molecular Biology of Plants, Estación Experimental del Zaidín, Consejo Superior de Investigaciones Científicas (CSIC), 18008, Granada, Spain
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12
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Righetti L, Körber T, Rolli E, Galaverna G, Suman M, Bruni R, Dall'Asta C. Plant biotransformation of T2 and HT2 toxin in cultured organs of Triticum durum Desf. Sci Rep 2019; 9:14320. [PMID: 31586121 PMCID: PMC6778183 DOI: 10.1038/s41598-019-50786-w] [Citation(s) in RCA: 9] [Impact Index Per Article: 1.8] [Reference Citation Analysis] [Abstract] [Key Words] [MESH Headings] [Grants] [Track Full Text] [Download PDF] [Figures] [Journal Information] [Subscribe] [Scholar Register] [Received: 02/26/2019] [Accepted: 08/30/2019] [Indexed: 01/08/2023] Open
Abstract
The present study aimed at elucidating the uptake and biotransformation of T2 and HT2 toxins in five cultivars of durum wheat, by means of cultured plant organs. An almost complete absorption of T2 toxin (up to 100 µg) was noticed after 7 days, along with the contemporaneous formation of HT2 in planta, whereas HT2 showed a slower uptake by uninfected plant organs. Untargeted MS-analysis allowed to identify a large spectrum of phase I and phase II metabolites, resulting in 26 T2 and 23 HT2 metabolites plus tentative isomers. A novel masked mycotoxin, 3-acetyl-HT2-glucoside, was reported for the first time in wheat. The in vitro approach confirmed its potential to both investigate the contribution of plant metabolism in the biosynthesis of masked mycotoxins and to foresee the development of biocatalytic tools to develop nature-like mixtures to be used as reference materials.
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Affiliation(s)
- Laura Righetti
- Department of Food and Drug, University of Parma, Viale delle Scienze 17/A, I-43124, Parma, Italy
| | - Tania Körber
- Chair of Analytical Food Chemistry, Technical University of Munich, Max-von-Imhof-Forum 2, D-85354, Freising, Germany
- Hamburg School of Food Science, Institute of Food Chemistry, University of Hamburg, Martin-Luther-King-Platz 6, D-20146, Hamburg, Germany
| | - Enrico Rolli
- Department of Department of Chemistry, Life Sciences and Environmental Sustainability, University of Parma, Via G.P. Usberti 11/a, Parma, Italy
| | - Gianni Galaverna
- Department of Food and Drug, University of Parma, Viale delle Scienze 17/A, I-43124, Parma, Italy
| | - Michele Suman
- Barilla G.R. F.lli SpA, Advanced Laboratory Research, via Mantova 166, Parma, Italy
| | - Renato Bruni
- Department of Food and Drug, University of Parma, Viale delle Scienze 17/A, I-43124, Parma, Italy
| | - Chiara Dall'Asta
- Department of Food and Drug, University of Parma, Viale delle Scienze 17/A, I-43124, Parma, Italy.
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13
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Begara-Morales JC, Sánchez-Calvo B, Gómez-Rodríguez MV, Chaki M, Valderrama R, Mata-Pérez C, López-Jaramillo J, Corpas FJ, Barroso JB. Short-Term Low Temperature Induces Nitro-Oxidative Stress that Deregulates the NADP-Malic Enzyme Function by Tyrosine Nitration in Arabidopsis thaliana. Antioxidants (Basel) 2019; 8:antiox8100448. [PMID: 31581524 PMCID: PMC6827146 DOI: 10.3390/antiox8100448] [Citation(s) in RCA: 13] [Impact Index Per Article: 2.6] [Reference Citation Analysis] [Abstract] [Key Words] [Track Full Text] [Download PDF] [Figures] [Journal Information] [Subscribe] [Scholar Register] [Received: 08/01/2019] [Revised: 09/12/2019] [Accepted: 09/20/2019] [Indexed: 12/31/2022] Open
Abstract
Low temperature (LT) negatively affects plant growth and development via the alteration of the metabolism of reactive oxygen and nitrogen species (ROS and RNS). Among RNS, tyrosine nitration, the addition of an NO2 group to a tyrosine residue, can modulate reduced nicotinamide-dinucleotide phosphate (NADPH)-generating systems and, therefore, can alter the levels of NADPH, a key cofactor in cellular redox homeostasis. NADPH also acts as an indispensable electron donor within a wide range of enzymatic reactions, biosynthetic pathways, and detoxification processes, which could affect plant viability. To extend our knowledge about the regulation of this key cofactor by this nitric oxide (NO)-related post-translational modification, we analyzed the effect of tyrosine nitration on another NADPH-generating enzyme, the NADP-malic enzyme (NADP-ME), under LT stress. In Arabidopsis thaliana seedlings exposed to short-term LT (4 °C for 48 h), a 50% growth reduction accompanied by an increase in the content of superoxide, nitric oxide, and peroxynitrite, in addition to diminished cytosolic NADP-ME activity, were found. In vitro assays confirmed that peroxynitrite inhibits cytosolic NADP-ME2 activity due to tyrosine nitration. The mass spectrometric analysis of nitrated NADP-ME2 enabled us to determine that Tyr-73 was exclusively nitrated to 3-nitrotyrosine by peroxynitrite. The in silico analysis of the Arabidopsis NADP-ME2 protein sequence suggests that Tyr73 nitration could disrupt the interactions between the specific amino acids responsible for protein structure stability. In conclusion, the present data show that short-term LT stress affects the metabolism of ROS and RNS, which appears to negatively modulate the activity of cytosolic NADP-ME through the tyrosine nitration process.
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Affiliation(s)
- Juan C Begara-Morales
- Group of Biochemistry and Cell Signaling in Nitric Oxide, Department of Experimental Biology, Center for Advanced Studies in Olive Grove and Olive Oils, Faculty of Experimental Sciences, University of Jaén, Campus "Las Lagunillas", s/n, E-23071 Jaén, Spain.
| | - Beatriz Sánchez-Calvo
- Group of Biochemistry and Cell Signaling in Nitric Oxide, Department of Experimental Biology, Center for Advanced Studies in Olive Grove and Olive Oils, Faculty of Experimental Sciences, University of Jaén, Campus "Las Lagunillas", s/n, E-23071 Jaén, Spain.
| | - María V Gómez-Rodríguez
- Group of Biochemistry and Cell Signaling in Nitric Oxide, Department of Experimental Biology, Center for Advanced Studies in Olive Grove and Olive Oils, Faculty of Experimental Sciences, University of Jaén, Campus "Las Lagunillas", s/n, E-23071 Jaén, Spain.
| | - Mounira Chaki
- Group of Biochemistry and Cell Signaling in Nitric Oxide, Department of Experimental Biology, Center for Advanced Studies in Olive Grove and Olive Oils, Faculty of Experimental Sciences, University of Jaén, Campus "Las Lagunillas", s/n, E-23071 Jaén, Spain.
| | - Raquel Valderrama
- Group of Biochemistry and Cell Signaling in Nitric Oxide, Department of Experimental Biology, Center for Advanced Studies in Olive Grove and Olive Oils, Faculty of Experimental Sciences, University of Jaén, Campus "Las Lagunillas", s/n, E-23071 Jaén, Spain.
| | - Capilla Mata-Pérez
- Group of Biochemistry and Cell Signaling in Nitric Oxide, Department of Experimental Biology, Center for Advanced Studies in Olive Grove and Olive Oils, Faculty of Experimental Sciences, University of Jaén, Campus "Las Lagunillas", s/n, E-23071 Jaén, Spain.
| | - Javier López-Jaramillo
- Institute of Biotechnology, Department of Organic Chemistry, Faculty of Sciences, University of Granada, E-18071 Granada, Spain.
| | - Francisco J Corpas
- Group of Antioxidants, Free Radicals, and Nitric Oxide in Biotechnology, Food and Agriculture, Department of Biochemistry, Cell and Molecular Biology of Plants, Estación Experimental del Zaidín, CSIC, C/ Profesor Albareda 1, E-18080 Granada, Spain.
| | - Juan B Barroso
- Group of Biochemistry and Cell Signaling in Nitric Oxide, Department of Experimental Biology, Center for Advanced Studies in Olive Grove and Olive Oils, Faculty of Experimental Sciences, University of Jaén, Campus "Las Lagunillas", s/n, E-23071 Jaén, Spain.
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14
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González-Gordo S, Bautista R, Claros MG, Cañas A, Palma JM, Corpas FJ. Nitric oxide-dependent regulation of sweet pepper fruit ripening. JOURNAL OF EXPERIMENTAL BOTANY 2019; 70:4557-4570. [PMID: 31046097 PMCID: PMC6736391 DOI: 10.1093/jxb/erz136] [Citation(s) in RCA: 24] [Impact Index Per Article: 4.8] [Reference Citation Analysis] [Abstract] [Key Words] [MESH Headings] [Track Full Text] [Subscribe] [Scholar Register] [Received: 02/11/2019] [Accepted: 03/19/2019] [Indexed: 05/20/2023]
Abstract
Ripening is a complex physiological process that involves changes in reactive nitrogen and oxygen species that govern the shelf-life and quality of fruits. Nitric oxide (NO)-dependent changes in the sweet pepper fruit transcriptome were determined by treating fruits at the initial breaking point stage with NO gas. Fruits were also harvested at the immature (green) and ripe (red) stages. Fruit ripening in the absence of NO resulted in changes in the abundance of 8805 transcripts whose function could be identified. Among these, functional clusters associated with reactive oxygen/nitrogen species and lipid metabolism were significantly modified. NO treatment resulted in the differential expression of 498 genes framed within these functional categories. Biochemical analysis revealed that NO treatment resulted in changes in fatty acid profiling, glutathione and proline contents, and the extent of lipid peroxidation, as well as increases in the activity of ascorbate peroxidase and lipoxygenase. These data provide supporting evidence for the crucial role of NO in the ripening of pepper fruit.
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Affiliation(s)
- Salvador González-Gordo
- Antioxidant, Free Radical and Nitric Oxide in Biotechnology, Food and Agriculture Group, Estación Experimental del Zaidín, Consejo Superior de Investigaciones Científicas (CSIC), Granada, Spain
| | - Rocío Bautista
- Plataforma Andaluza de Bioinformática and Department of Molecular Biology and Biochemistry, Universidad de Málaga, Málaga, Spain
| | - M Gonzalo Claros
- Plataforma Andaluza de Bioinformática and Department of Molecular Biology and Biochemistry, Universidad de Málaga, Málaga, Spain
| | - Amanda Cañas
- Antioxidant, Free Radical and Nitric Oxide in Biotechnology, Food and Agriculture Group, Estación Experimental del Zaidín, Consejo Superior de Investigaciones Científicas (CSIC), Granada, Spain
| | - José M Palma
- Antioxidant, Free Radical and Nitric Oxide in Biotechnology, Food and Agriculture Group, Estación Experimental del Zaidín, Consejo Superior de Investigaciones Científicas (CSIC), Granada, Spain
| | - Francisco J Corpas
- Antioxidant, Free Radical and Nitric Oxide in Biotechnology, Food and Agriculture Group, Estación Experimental del Zaidín, Consejo Superior de Investigaciones Científicas (CSIC), Granada, Spain
- Correspondence:
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15
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Chen Q, Wang B, Ding H, Zhang J, Li S. Review: The role of NADP-malic enzyme in plants under stress. PLANT SCIENCE : AN INTERNATIONAL JOURNAL OF EXPERIMENTAL PLANT BIOLOGY 2019; 281:206-212. [PMID: 30824053 DOI: 10.1016/j.plantsci.2019.01.010] [Citation(s) in RCA: 46] [Impact Index Per Article: 9.2] [Reference Citation Analysis] [Abstract] [Key Words] [MESH Headings] [Track Full Text] [Subscribe] [Scholar Register] [Received: 08/17/2018] [Revised: 12/20/2018] [Accepted: 01/10/2019] [Indexed: 05/26/2023]
Abstract
Under natural conditions, plants constantly encounter various fluctuating environmental stresses, which potentially restrict plant growth, plant development and even limit crop productivity. In addition to carbon fixation activity in C4 photosynthesis, NADP-dependent malic enzyme (NADP-ME) has been suggested to play important roles in diverse stress responses in plants. NADP-ME is one of the essential enzymes metabolizing malate, which is important for stabilizing cytoplasmic pH, controlling stomatal aperture, increasing resistance to aluminum excess and pathogen. Pyruvate, another product of NADP-ME reaction, participates in the synthesis of defense compounds such as flavonoids and lignin, which are involved in stresses tolerance such as mechanical wounding and pathogen invasion. Moreover, NADP-ME provides essential reductive coenzyme NADPH in the biosynthesis of flavonoids and lignin. On the other hand, NADPH is crucial for reactive active species (ROS) metabolizing systems such as the ascorbate-glutathione pathway and NADPH-dependent thioredoxin reductase, and is also required by apoplastic oxidative burst in most plant-pathogen interactions. This mini-review is largely focus on the characteristics of gene expression and activity of NADP-ME, as well as its interaction with ROS signaling under a variety of biotic and abiotic stress responses, which will provide a theoretical foundation for breeding of stress resistant crops.
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Affiliation(s)
- Qiqi Chen
- State Key Laboratory of Biocatalysis and Enzyme Engineering, Hubei Collaborative Innovation Center for Green Transformation of Bio-Resources, School of Life Sciences, Hubei University, Wuhan, 430062, China
| | - Bipeng Wang
- State Key Laboratory of Biocatalysis and Enzyme Engineering, Hubei Collaborative Innovation Center for Green Transformation of Bio-Resources, School of Life Sciences, Hubei University, Wuhan, 430062, China
| | - Haiyan Ding
- State Key Laboratory of Biocatalysis and Enzyme Engineering, Hubei Collaborative Innovation Center for Green Transformation of Bio-Resources, School of Life Sciences, Hubei University, Wuhan, 430062, China
| | - Jiang Zhang
- State Key Laboratory of Biocatalysis and Enzyme Engineering, Hubei Collaborative Innovation Center for Green Transformation of Bio-Resources, School of Life Sciences, Hubei University, Wuhan, 430062, China.
| | - Shengchun Li
- State Key Laboratory of Biocatalysis and Enzyme Engineering, Hubei Collaborative Innovation Center for Green Transformation of Bio-Resources, School of Life Sciences, Hubei University, Wuhan, 430062, China.
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Saia S, Fragasso M, De Vita P, Beleggia R. Metabolomics Provides Valuable Insight for the Study of Durum Wheat: A Review. JOURNAL OF AGRICULTURAL AND FOOD CHEMISTRY 2019; 67:3069-3085. [PMID: 30829031 DOI: 10.1021/acs.jafc.8b07097] [Citation(s) in RCA: 35] [Impact Index Per Article: 7.0] [Reference Citation Analysis] [Abstract] [Key Words] [MESH Headings] [Track Full Text] [Subscribe] [Scholar Register] [Indexed: 05/11/2023]
Abstract
Metabolomics is increasingly being applied in various fields offering a highly informative tool for high-throughput diagnostics. However, in plant sciences, metabolomics is underused, even though plant studies are relatively easy and cheap when compared to those on humans and animals. Despite their importance for human nutrition, cereals, and especially wheat, remain understudied from a metabolomics point of view. The metabolomics of durum wheat has been essentially neglected, although its genetic structure allows the inference of common mechanisms that can be extended to other wheat and cereal species. This review covers the present achievements in durum wheat metabolomics highlighting the connections with the metabolomics of other cereal species (especially bread wheat). We discuss the metabolomics data from various studies and their relationships to other "-omics" sciences, in terms of wheat genetics, abiotic and biotic stresses, beneficial microbes, and the characterization and use of durum wheat as feed, food, and food ingredient.
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Affiliation(s)
- Sergio Saia
- Council for Agricultural Research and Economics (CREA) , Research Centre for Cereal and Industrial Crops (CREA-CI) , S.S. 673 , Km 25,200, 71122 Foggia , Italy
- Council for Agricultural Research and Economics (CREA) , Research Centre for Cereal and Industrial Crops (CREA-CI) , S.S. 11 per Torino , Km 2,5, 13100 Vercelli , Italy
| | - Mariagiovanna Fragasso
- Council for Agricultural Research and Economics (CREA) , Research Centre for Cereal and Industrial Crops (CREA-CI) , S.S. 673 , Km 25,200, 71122 Foggia , Italy
| | - Pasquale De Vita
- Council for Agricultural Research and Economics (CREA) , Research Centre for Cereal and Industrial Crops (CREA-CI) , S.S. 673 , Km 25,200, 71122 Foggia , Italy
| | - Romina Beleggia
- Council for Agricultural Research and Economics (CREA) , Research Centre for Cereal and Industrial Crops (CREA-CI) , S.S. 673 , Km 25,200, 71122 Foggia , Italy
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17
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Muñoz-Vargas MA, González-Gordo S, Cañas A, López-Jaramillo J, Palma JM, Corpas FJ. Endogenous hydrogen sulfide (H 2S) is up-regulated during sweet pepper (Capsicum annuum L.) fruit ripening. In vitro analysis shows that NADP-dependent isocitrate dehydrogenase (ICDH) activity is inhibited by H 2S and NO. Nitric Oxide 2018; 81:36-45. [PMID: 30326260 DOI: 10.1016/j.niox.2018.10.002] [Citation(s) in RCA: 60] [Impact Index Per Article: 10.0] [Reference Citation Analysis] [Abstract] [Key Words] [Track Full Text] [Journal Information] [Subscribe] [Scholar Register] [Received: 06/15/2018] [Revised: 10/04/2018] [Accepted: 10/07/2018] [Indexed: 10/28/2022]
Abstract
Like nitric oxide (NO), hydrogen sulfide (H2S) has been recognized as a new gasotransmitter which plays an important role as a signaling molecule in many physiological processes in higher plants. Although fruit ripening is a complex process associated with the metabolism of reactive oxygen species (ROS) and nitrogen oxygen species (RNS), little is known about the potential involvement of endogenous H2S. Using sweet pepper (Capsicum annuum L.) as a model non-climacteric fruit during the green and red ripening stages, we studied endogenous H2S content and cytosolic l-cysteine desulfhydrase (L-DES) activity which increased by 14% and 28%, respectively, in red pepper fruits. NADPH is a redox compound and key cofactor required for cell growth, proliferation and detoxification. We studied the NADPH-regenerating enzyme, NADP-isocitrate dehydrogenase (NADP-ICDH), whose activity decreased by 34% during ripening. To gain a better understanding of its potential regulation by H2S, we obtained a 50-75% ammonium sulfate-enriched protein fraction containing the NADP-ICDH protein; with the aid of in vitro assays in the presence of H2S, we observed that 2 and 10 mM NaHS used as H2S donors resulted in a decrease of up to 36% and 45%, respectively, in NADP-ICDH activity, which was unaffected by reduced glutathione (GSH). On the other hand, peroxynitrite (ONOO-), S-nitrosocyteine (CysNO) and DETA-NONOate, with the last two acting as NO donors, also inhibited NADP-ICDH activity. In silico analysis of the tertiary structure of sweet pepper NADP-ICDH activity (UniProtKB ID A0A2G2Y555) suggests that residues Cys133 and Tyr450 are the most likely potential targets for S-nitrosation and nitration, respectively. Taken together, the data reveal that the increase in the H2S production capacity of red fruits is due to higher L-DES activity during non-climacteric pepper fruit ripening. In vitro assays appear to show that H2S inhibits NADP-ICDH activity, thus suggesting that this enzyme may be regulated by persulfidation, as well as by S-nitrosation and nitration. NO and H2S may therefore regulate NADPH production and consequently cellular redox status during pepper fruit ripening.
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Affiliation(s)
- María A Muñoz-Vargas
- Group Antioxidant, Free Radical and Nitric Oxide in Biotechnology, Food and Agriculture, Estación Experimental del Zaidín, CSIC, C/ Profesor Albareda 1, E-18008, Granada, Spain
| | - Salvador González-Gordo
- Group Antioxidant, Free Radical and Nitric Oxide in Biotechnology, Food and Agriculture, Estación Experimental del Zaidín, CSIC, C/ Profesor Albareda 1, E-18008, Granada, Spain
| | - Amanda Cañas
- Group Antioxidant, Free Radical and Nitric Oxide in Biotechnology, Food and Agriculture, Estación Experimental del Zaidín, CSIC, C/ Profesor Albareda 1, E-18008, Granada, Spain
| | | | - José M Palma
- Group Antioxidant, Free Radical and Nitric Oxide in Biotechnology, Food and Agriculture, Estación Experimental del Zaidín, CSIC, C/ Profesor Albareda 1, E-18008, Granada, Spain
| | - Francisco J Corpas
- Group Antioxidant, Free Radical and Nitric Oxide in Biotechnology, Food and Agriculture, Estación Experimental del Zaidín, CSIC, C/ Profesor Albareda 1, E-18008, Granada, Spain.
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18
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Li LQ, Liu L, Zhuo W, Chen Q, Hu S, Peng S, Wang XY, Lu YF, Lu LM. Physiological and quantitative proteomic analyses unraveling potassium deficiency stress response in alligator weed (Alternanthera philoxeroides L.) root. PLANT MOLECULAR BIOLOGY 2018; 97:265-278. [PMID: 29777486 DOI: 10.1007/s11103-018-0738-5] [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: 03/22/2018] [Accepted: 05/14/2018] [Indexed: 06/08/2023]
Abstract
Physiological and iTRAQ based proteomic analysis provided new insights into potassium deficiency stress response in alligator weed root. Alligator weed (Alternanthera philoxeroides) has a strong ability to adapt to potassium deficiency (LK) stress. Proteomic changes in response to this stress are largely unknown in alligator weed. In this study, we investigated physiological and molecular mechanisms under LK using isobaric tags for relative and absolute quantitation to characterize proteome-level changes in this plant. First, root physiology, 2, 3, 5-Triphenyl-trazolium chloride (TTC) assay and peroxidase activity were significantly altered after 10 and 15 days of LK treatment. The comparative proteomic analysis suggested a total of 375 proteins were differential abundance proteins. The proteomic results were verified by western blot assays and quantitative real-time PCR. Correlation analysis of transcription and proteomics suggested protein processing in the endoplasmic reticulum, endocytosis, and spliceosome pathways were significantly enriched. The protein responsible for energy metabolism, signal sensing and transduction and protein degradation played crucial roles in this stress. Twelve ubiquitin pathway related proteins were identified in our study, among them 11 proteins were up-regulated. All protein ubiquitination of lysine using pan antibodies were also increased after LK treatment. Our study provide a valuable insights of molecular mechanism underlying LK stress response in alligator weed roots and afford a vital basis to further study potassium nutrition molecular breeding of other plant species.
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Affiliation(s)
- Li-Qin Li
- College of Agronomy, Sichuan Agricultural University, Chengdu, 611130, China.
| | - Lun Liu
- College of Agronomy, Sichuan Agricultural University, Chengdu, 611130, China
| | - Wei Zhuo
- College of Agronomy, Sichuan Agricultural University, Chengdu, 611130, China
| | - Qian Chen
- College of Agronomy, Sichuan Agricultural University, Chengdu, 611130, China
| | - Sheng Hu
- College of Agronomy, Sichuan Agricultural University, Chengdu, 611130, China
| | - Shuang Peng
- College of Agronomy, Sichuan Agricultural University, Chengdu, 611130, China
| | - Xi-Yao Wang
- College of Agronomy, Sichuan Agricultural University, Chengdu, 611130, China
| | - Yi-Fei Lu
- College of Agronomy, Sichuan Agricultural University, Chengdu, 611130, China
| | - Li-Ming Lu
- College of Agronomy, Sichuan Agricultural University, Chengdu, 611130, China.
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19
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Kharbech O, Houmani H, Chaoui A, Corpas FJ. Alleviation of Cr(VI)-induced oxidative stress in maize (Zea mays L.) seedlings by NO and H 2S donors through differential organ-dependent regulation of ROS and NADPH-recycling metabolisms. JOURNAL OF PLANT PHYSIOLOGY 2017; 219:71-80. [PMID: 29040900 DOI: 10.1016/j.jplph.2017.09.010] [Citation(s) in RCA: 32] [Impact Index Per Article: 4.6] [Reference Citation Analysis] [Abstract] [Key Words] [MESH Headings] [Track Full Text] [Subscribe] [Scholar Register] [Received: 06/02/2017] [Revised: 08/16/2017] [Accepted: 09/30/2017] [Indexed: 05/21/2023]
Abstract
Chromium (Cr) contamination in soil is a growing concern in relation to sustainable agricultural production and food safety. Nitric oxide (NO) and, more recently, hydrogen sulfide (H2S) are considered to be new signalling molecules with biotechnological applications in the agronomical sector. Using 9-day-old maize (Zea mays) seedlings exposed to 200μM Cr(VI), the potential mitigating effects of exogenous NO and H2S on chromium-induced stress in maize seedlings were investigated in roots, cotyledons and coleoptiles. Analysis of Cr content, lipid peroxidation, antioxidant enzymes (catalase and superoxide dismutase isozymes), peroxisomal H2O2-producing glycolate oxidase and the main NADPH-regenerating system revealed that chromium causes oxidative stress, leading to a general increase in these activities in coleptiles and roots, with the latter organ being the most affected. However, cotyledons behaved in an opposite manner. Moreover, exogenous applications of NO and H2S to Cr-stressed maize seedlings triggered a significant response, involving the virtual restoration of the values for all these activities to those observed in unstressed seedlings, although their specific impact on ROS and NADPH-recycling metabolisms depends on the seedling organ involved. Taken together, the data indicate that gas transmitters, NO and H2S, which act as a defence against the negative effects of hexavalent chromium contamination, are alternative compounds with potential biotechnological applications.
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Affiliation(s)
- Oussama Kharbech
- Group of Antioxidants, Free Radicals and Nitric Oxide in Biotechnology, Food and Agriculture, Department of Biochemistry, Cell and Molecular Biology of Plants, Estación Experimental del Zaidín, Spanish National Research Council (CSIC), Apartado 419, E-18080 Granada, Spain; Plant Toxicology and Molecular Biology of Microorganisms, Faculty of Sciences of Bizerta (Carthage University), 7021 Zarzouna, Tunisia
| | - Hayet Houmani
- Group of Antioxidants, Free Radicals and Nitric Oxide in Biotechnology, Food and Agriculture, Department of Biochemistry, Cell and Molecular Biology of Plants, Estación Experimental del Zaidín, Spanish National Research Council (CSIC), Apartado 419, E-18080 Granada, Spain; Laboratory of Extremophile Plants, Center of Biotechnology of Borj Cedria, PO Box 901, 2050 Hammam-Lif, Tunisia
| | - Abdelilah Chaoui
- Plant Toxicology and Molecular Biology of Microorganisms, Faculty of Sciences of Bizerta (Carthage University), 7021 Zarzouna, Tunisia
| | - Francisco J Corpas
- Group of Antioxidants, Free Radicals and Nitric Oxide in Biotechnology, Food and Agriculture, Department of Biochemistry, Cell and Molecular Biology of Plants, Estación Experimental del Zaidín, Spanish National Research Council (CSIC), Apartado 419, E-18080 Granada, Spain.
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Houmani H, Rodríguez-Ruiz M, Palma JM, Corpas FJ. Mechanical wounding promotes local and long distance response in the halophyte Cakile maritima through the involvement of the ROS and RNS metabolism. Nitric Oxide 2017; 74:93-101. [PMID: 28655650 DOI: 10.1016/j.niox.2017.06.008] [Citation(s) in RCA: 27] [Impact Index Per Article: 3.9] [Reference Citation Analysis] [Abstract] [Key Words] [Track Full Text] [Journal Information] [Subscribe] [Scholar Register] [Received: 03/14/2017] [Revised: 06/21/2017] [Accepted: 06/22/2017] [Indexed: 11/27/2022]
Abstract
Mechanical wounding in plants, which are capable of generating defense responses possibly associated with nitro-oxidative stress, can be caused by (a)biotic factors such as rain, wind, herbivores and insects. Sea rocket (Cakile maritima L.), a halophyte plant belonging to the mustard family Brassicaceae, is commonly found on sandy coasts throughout Europe. Using 7-day-old Cakile maritima L. seedlings, mechanical wounding was induced in hypocotyls by pinching with a striped-tip forceps; after 3 h, several biochemical parameters were analyzed in both the damaged and unwounded organs (green cotyledons and roots). We thus determined NO production, H2O2 content, lipid oxidation as well as protein nitration patterns; we also identified several antioxidant enzymes including catalase, superoxide dismutase (SOD) isozymes, peroxidases, ascorbate-glutathione cycle enzymes and NADP-dehydrogenases. All these parameters were differentially modulated in the damaged (hypocotyls) and unwounded organs, which clearly indicated an induction of CuZnSOD V in the three organs, an increase in protein nitration in green cotyledons and an induction of NADP-isocitrate dehydrogenase activity in roots. On the whole, our results indicate that the wounding of hypocotyls, which showed an active ROS metabolism and oxidative stress, causes long-distance signals that also trigger responses in unwounded tissues with a more active RNS metabolism. These data therefore confirm the existence of local and long-distance responses which counteract negative effects and provide appropriate responses, enabling the wounded seedlings to survive.
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Affiliation(s)
- Hayet Houmani
- Group of Antioxidants, Free Radicals and Nitric Oxide in Biotechnology, Food and Agriculture, Department of Biochemistry, Cell and Molecular Biology of Plants, Estación Experimental del Zaidín, CSIC, Granada, Spain
| | - Marta Rodríguez-Ruiz
- Group of Antioxidants, Free Radicals and Nitric Oxide in Biotechnology, Food and Agriculture, Department of Biochemistry, Cell and Molecular Biology of Plants, Estación Experimental del Zaidín, CSIC, Granada, Spain
| | - José M Palma
- Group of Antioxidants, Free Radicals and Nitric Oxide in Biotechnology, Food and Agriculture, Department of Biochemistry, Cell and Molecular Biology of Plants, Estación Experimental del Zaidín, CSIC, Granada, Spain
| | - Francisco J Corpas
- Group of Antioxidants, Free Radicals and Nitric Oxide in Biotechnology, Food and Agriculture, Department of Biochemistry, Cell and Molecular Biology of Plants, Estación Experimental del Zaidín, CSIC, Granada, Spain.
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21
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Xiong H, Guo H, Xie Y, Zhao L, Gu J, Zhao S, Li J, Liu L. RNAseq analysis reveals pathways and candidate genes associated with salinity tolerance in a spaceflight-induced wheat mutant. Sci Rep 2017. [PMID: 28578401 DOI: 10.1038/s41598-41017-03024-41590] [Citation(s) in RCA: 1] [Impact Index Per Article: 0.1] [Reference Citation Analysis] [Abstract] [MESH Headings] [Journal Information] [Subscribe] [Scholar Register] [Indexed: 04/22/2023] Open
Abstract
Salinity stress has become an increasing threat to food security worldwide and elucidation of the mechanism for salinity tolerance is of great significance. Induced mutation, especially spaceflight mutagenesis, is one important method for crop breeding. In this study, we show that a spaceflight-induced wheat mutant, named salinity tolerance 1 (st1), is a salinity-tolerant line. We report the characteristics of transcriptomic sequence variation induced by spaceflight, and show that mutations in genes associated with sodium ion transport may directly contribute to salinity tolerance in st1. Furthermore, GO and KEGG enrichment analysis of differentially expressed genes (DEGs) between salinity-treated st1 and wild type suggested that the homeostasis of oxidation-reduction process is important for salt tolerance in st1. Through KEGG pathway analysis, "Butanoate metabolism" was identified as a new pathway for salinity responses. Additionally, key genes for salinity tolerance, such as genes encoding arginine decarboxylase, polyamine oxidase, hormones-related, were not only salt-induced in st1 but also showed higher expression in salt-treated st1 compared with salt-treated WT, indicating that these genes may play important roles in salinity tolerance in st1. This study presents valuable genetic resources for studies on transcriptome variation caused by induced mutation and the identification of salt tolerance genes in crops.
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Affiliation(s)
- Hongchun Xiong
- Institute of Crop Science, Chinese Academy of Agricultural Sciences/National Key Facility for Crop Gene Resources and Genetic Improvement, National Center of Space Mutagenesis for Crop Improvement, Beijing, 100081, China
| | - Huijun Guo
- Institute of Crop Science, Chinese Academy of Agricultural Sciences/National Key Facility for Crop Gene Resources and Genetic Improvement, National Center of Space Mutagenesis for Crop Improvement, Beijing, 100081, China
| | - Yongdun Xie
- Institute of Crop Science, Chinese Academy of Agricultural Sciences/National Key Facility for Crop Gene Resources and Genetic Improvement, National Center of Space Mutagenesis for Crop Improvement, Beijing, 100081, China
| | - Linshu Zhao
- Institute of Crop Science, Chinese Academy of Agricultural Sciences/National Key Facility for Crop Gene Resources and Genetic Improvement, National Center of Space Mutagenesis for Crop Improvement, Beijing, 100081, China
| | - Jiayu Gu
- Institute of Crop Science, Chinese Academy of Agricultural Sciences/National Key Facility for Crop Gene Resources and Genetic Improvement, National Center of Space Mutagenesis for Crop Improvement, Beijing, 100081, China
| | - Shirong Zhao
- Institute of Crop Science, Chinese Academy of Agricultural Sciences/National Key Facility for Crop Gene Resources and Genetic Improvement, National Center of Space Mutagenesis for Crop Improvement, Beijing, 100081, China
| | - Junhui Li
- Institute of Crop Science, Chinese Academy of Agricultural Sciences/National Key Facility for Crop Gene Resources and Genetic Improvement, National Center of Space Mutagenesis for Crop Improvement, Beijing, 100081, China
| | - Luxiang Liu
- Institute of Crop Science, Chinese Academy of Agricultural Sciences/National Key Facility for Crop Gene Resources and Genetic Improvement, National Center of Space Mutagenesis for Crop Improvement, Beijing, 100081, China.
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22
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RNAseq analysis reveals pathways and candidate genes associated with salinity tolerance in a spaceflight-induced wheat mutant. Sci Rep 2017; 7:2731. [PMID: 28578401 PMCID: PMC5457441 DOI: 10.1038/s41598-017-03024-0] [Citation(s) in RCA: 49] [Impact Index Per Article: 7.0] [Reference Citation Analysis] [Abstract] [Track Full Text] [Download PDF] [Figures] [Journal Information] [Subscribe] [Scholar Register] [Received: 12/29/2016] [Accepted: 04/20/2017] [Indexed: 12/23/2022] Open
Abstract
Salinity stress has become an increasing threat to food security worldwide and elucidation of the mechanism for salinity tolerance is of great significance. Induced mutation, especially spaceflight mutagenesis, is one important method for crop breeding. In this study, we show that a spaceflight-induced wheat mutant, named salinity tolerance 1 (st1), is a salinity-tolerant line. We report the characteristics of transcriptomic sequence variation induced by spaceflight, and show that mutations in genes associated with sodium ion transport may directly contribute to salinity tolerance in st1. Furthermore, GO and KEGG enrichment analysis of differentially expressed genes (DEGs) between salinity-treated st1 and wild type suggested that the homeostasis of oxidation-reduction process is important for salt tolerance in st1. Through KEGG pathway analysis, "Butanoate metabolism" was identified as a new pathway for salinity responses. Additionally, key genes for salinity tolerance, such as genes encoding arginine decarboxylase, polyamine oxidase, hormones-related, were not only salt-induced in st1 but also showed higher expression in salt-treated st1 compared with salt-treated WT, indicating that these genes may play important roles in salinity tolerance in st1. This study presents valuable genetic resources for studies on transcriptome variation caused by induced mutation and the identification of salt tolerance genes in crops.
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23
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Ruíz-Torres C, Feriche-Linares R, Rodríguez-Ruíz M, Palma JM, Corpas FJ. Arsenic-induced stress activates sulfur metabolism in different organs of garlic (Allium sativum L.) plants accompanied by a general decline of the NADPH-generating systems in roots. JOURNAL OF PLANT PHYSIOLOGY 2017; 211:27-35. [PMID: 28142094 DOI: 10.1016/j.jplph.2016.12.010] [Citation(s) in RCA: 22] [Impact Index Per Article: 3.1] [Reference Citation Analysis] [Abstract] [Key Words] [MESH Headings] [Track Full Text] [Subscribe] [Scholar Register] [Received: 11/01/2016] [Revised: 12/17/2016] [Accepted: 12/19/2016] [Indexed: 06/06/2023]
Abstract
Arsenic (As) contamination is a major environmental problem which affects most living organisms from plants to animals. This metalloid poses a health risk for humans through its accumulation in crops and water. Using garlic (Allium sativum L.) plants as model crop exposed to 200μM arsenate, a comparative study among their main organs (roots and shoots) was made. The analysis of arsenic, glutathione (GSH), phytochelatins (PCs) and lipid peroxidation contents with the activities of antioxidant enzymes (catalase, superoxide dismutase, ascorbate-glutathione cycle), and the main components of the NADPH-generating system, including glucose-6-phosphate dehydrogenase (G6PDH), 6-phosphogluconate dehydrogenase (6PGDH), NADP-malic enzyme (NADP-ME) and NADP-isocitrate dehydrogenase (NADP-ICDH) was carried out. Data showed a correlation among arsenic accumulation in the different organs, PCs content and the antioxidative response, with a general decline of the NADPH-generating systems in roots. Overall, our results demonstrate that there are clear connections between arsenic uptake, increase of their As-chelating capacity in roots and a decline of antioxidative enzyme activities (catalase and the ascorbate peroxidase) whose alteration provoked As-induced oxidative stress. Thus, the data suggest that roots act as barrier of arsenic mediated by a prominent sulfur metabolism which is characterized by the biosynthesis of high amount of PCs.
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Affiliation(s)
- Carmelo Ruíz-Torres
- Department of Biochemistry, Cell and Molecular Biology of Plants, Estación Experimental del Zaidín, CSIC, C/Profesor Albareda 1, Granada E-18008, Spain
| | - Rafael Feriche-Linares
- Department of Biochemistry, Cell and Molecular Biology of Plants, Estación Experimental del Zaidín, CSIC, C/Profesor Albareda 1, Granada E-18008, Spain
| | - Marta Rodríguez-Ruíz
- Department of Biochemistry, Cell and Molecular Biology of Plants, Estación Experimental del Zaidín, CSIC, C/Profesor Albareda 1, Granada E-18008, Spain
| | - José M Palma
- Department of Biochemistry, Cell and Molecular Biology of Plants, Estación Experimental del Zaidín, CSIC, C/Profesor Albareda 1, Granada E-18008, Spain
| | - Francisco J Corpas
- Department of Biochemistry, Cell and Molecular Biology of Plants, Estación Experimental del Zaidín, CSIC, C/Profesor Albareda 1, Granada E-18008, Spain.
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24
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Liberatore KL, Dukowic-Schulze S, Miller ME, Chen C, Kianian SF. The role of mitochondria in plant development and stress tolerance. Free Radic Biol Med 2016; 100:238-256. [PMID: 27036362 DOI: 10.1016/j.freeradbiomed.2016.03.033] [Citation(s) in RCA: 66] [Impact Index Per Article: 8.3] [Reference Citation Analysis] [Abstract] [Key Words] [MESH Headings] [Track Full Text] [Journal Information] [Submit a Manuscript] [Subscribe] [Scholar Register] [Received: 02/05/2016] [Revised: 03/25/2016] [Accepted: 03/28/2016] [Indexed: 01/03/2023]
Abstract
Eukaryotic cells require orchestrated communication between nuclear and organellar genomes, perturbations in which are linked to stress response and disease in both animals and plants. In addition to mitochondria, which are found across eukaryotes, plant cells contain a second organelle, the plastid. Signaling both among the organelles (cytoplasmic) and between the cytoplasm and the nucleus (i.e. nuclear-cytoplasmic interactions (NCI)) is essential for proper cellular function. A deeper understanding of NCI and its impact on development, stress response, and long-term health is needed in both animal and plant systems. Here we focus on the role of plant mitochondria in development and stress response. We compare and contrast features of plant and animal mitochondrial genomes (mtDNA), particularly highlighting the large and highly dynamic nature of plant mtDNA. Plant-based tools are powerful, yet underutilized, resources for enhancing our fundamental understanding of NCI. These tools also have great potential for improving crop production. Across taxa, mitochondria are most abundant in cells that have high energy or nutrient demands as well as at key developmental time points. Although plant mitochondria act as integrators of signals involved in both development and stress response pathways, little is known about plant mtDNA diversity and its impact on these processes. In humans, there are strong correlations between particular mitotypes (and mtDNA mutations) and developmental differences (or disease). We propose that future work in plants should focus on defining mitotypes more carefully and investigating their functional implications as well as improving techniques to facilitate this research.
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Affiliation(s)
- Katie L Liberatore
- United States Department of Agriculture-Agricultural Research Service, Cereal Disease Laboratory, St. Paul, MN 55108, United States; Department of Plant Pathology, University of Minnesota, St. Paul, MN 55108, United States.
| | | | - Marisa E Miller
- United States Department of Agriculture-Agricultural Research Service, Cereal Disease Laboratory, St. Paul, MN 55108, United States; Department of Horticultural Science, University of Minnesota, St. Paul, MN 55108, United States
| | - Changbin Chen
- Department of Horticultural Science, University of Minnesota, St. Paul, MN 55108, United States
| | - Shahryar F Kianian
- United States Department of Agriculture-Agricultural Research Service, Cereal Disease Laboratory, St. Paul, MN 55108, United States; Department of Plant Pathology, University of Minnesota, St. Paul, MN 55108, United States
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25
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Houmani H, Rodríguez-Ruiz M, Palma JM, Abdelly C, Corpas FJ. Modulation of superoxide dismutase (SOD) isozymes by organ development and high long-term salinity in the halophyte Cakile maritima. PROTOPLASMA 2016; 253:885-894. [PMID: 26159565 DOI: 10.1007/s00709-015-0850-1] [Citation(s) in RCA: 30] [Impact Index Per Article: 3.8] [Reference Citation Analysis] [Abstract] [Key Words] [MESH Headings] [Track Full Text] [Subscribe] [Scholar Register] [Received: 01/15/2015] [Accepted: 06/18/2015] [Indexed: 06/04/2023]
Abstract
Superoxide dismutase (SOD) activity catalyzes the disproportionation of superoxide radicals into hydrogen peroxide and oxygen. This enzyme is considered to be a first line of defense for controlling the production of reactive oxygen species (ROS). In this study, the number and type of SOD isozymes were identified in the principal organs (roots, stems, leaves, flowers, and seeds) of Cakile maritima. We also analyzed the way in which the activity of these SOD isozymes is modulated during development and under high long-term salinity (400 mM NaCl) stress conditions. The data indicate that this plant contains a total of ten SOD isozymes: two Mn-SODs, one Fe-SOD, and seven CuZn-SODs, with the Fe-SOD being the most prominent isozyme in the different organs analyzed. Moreover, the modulation of SOD isozymes, particularly CuZn-SODs, was only detected during development and under severe salinity stress conditions. These data suggest that, in C. maritima, the occurrence of these CuZn-SODs in roots and leaves plays an adaptive role since this CuZn-SOD isozyme might replace the diminished Fe-SOD activity under salinity stress to overcome this adverse environmental condition.
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Affiliation(s)
- Hayet Houmani
- Group of Antioxidants, Free Radicals and Nitric Oxide in Biotechnology, Food and Agriculture, Department of Biochemistry, Cell and Molecular Biology of Plants, Estación Experimental del Zaidín, CSIC, Apartado 419, E-18080, Granada, Spain
- Laboratory of Extremophile Plants, Center of Biotechnology of Borj Cedria, PO Box 901, 2050, Hammam-Lif, Tunisia
| | - Marta Rodríguez-Ruiz
- Group of Antioxidants, Free Radicals and Nitric Oxide in Biotechnology, Food and Agriculture, Department of Biochemistry, Cell and Molecular Biology of Plants, Estación Experimental del Zaidín, CSIC, Apartado 419, E-18080, Granada, Spain
| | - José M Palma
- Group of Antioxidants, Free Radicals and Nitric Oxide in Biotechnology, Food and Agriculture, Department of Biochemistry, Cell and Molecular Biology of Plants, Estación Experimental del Zaidín, CSIC, Apartado 419, E-18080, Granada, Spain
| | - Chedly Abdelly
- Laboratory of Extremophile Plants, Center of Biotechnology of Borj Cedria, PO Box 901, 2050, Hammam-Lif, Tunisia
| | - Francisco J Corpas
- Group of Antioxidants, Free Radicals and Nitric Oxide in Biotechnology, Food and Agriculture, Department of Biochemistry, Cell and Molecular Biology of Plants, Estación Experimental del Zaidín, CSIC, Apartado 419, E-18080, Granada, Spain.
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26
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Corpas FJ, Aguayo-Trinidad S, Ogawa T, Yoshimura K, Shigeoka S. Activation of NADPH-recycling systems in leaves and roots of Arabidopsis thaliana under arsenic-induced stress conditions is accelerated by knock-out of Nudix hydrolase 19 (AtNUDX19) gene. JOURNAL OF PLANT PHYSIOLOGY 2016; 192:81-9. [PMID: 26878367 DOI: 10.1016/j.jplph.2016.01.010] [Citation(s) in RCA: 13] [Impact Index Per Article: 1.6] [Reference Citation Analysis] [Abstract] [Key Words] [MESH Headings] [Track Full Text] [Subscribe] [Scholar Register] [Received: 11/23/2015] [Revised: 01/27/2016] [Accepted: 01/27/2016] [Indexed: 05/16/2023]
Abstract
NADPH is an important cofactor in cell growth, proliferation and detoxification. Arabidopsis thaliana Nudix hydrolase 19 (AtNUDX19) belongs to a family of proteins defined by the conserved amino-acid sequence GX5-EX7REUXEEXGU which has the capacity to hydrolyze NADPH as a physiological substrate in vivo. Given the importance of NADPH in the cellular redox homeostasis of plants, the present study compares the responses of the main NADPH-recycling systems including NADP-isocitrate dehydrogenase (ICDH), glucose-6-phosphate dehydrogenase (G6PDH), 6-phosphogluconate dehydrogenase (6PGDH) and NADP-malic enzyme (ME) in the leaves and roots of Arabidopsis wild-type (Wt) and knock-out (KO) AtNUDX19 mutant (Atnudx19) plants under physiological and arsenic-induced stress conditions. Two major features were observed in the behavior of the main NADPH-recycling systems: (i) under optimal conditions in both organs, the levels of these activities were higher in nudx19 mutants than in Wt plants; and, (ii) under 500μM AsV conditions, these activities increase, especially in nudx19 mutant plants. Moreover, G6PDH activity in roots was the most affected enzyme in both Wt and nudx19 mutant plants, with a 4.6-fold and 5.0-fold increase, respectively. In summary, the data reveals a connection between the absence of chloroplastic AtNUDX19 and the rise in all NADP-dehydrogenase activities under physiological and arsenic-induced stress conditions, particularly in roots. This suggests that AtNUDX19 could be a key factor in modulating the NADPH pool in plants and consequently in redox homeostasis.
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Affiliation(s)
- Francisco J Corpas
- Departamento de Bioquímica, Biología Celular y Molecular de Plantas, Estación Experimental del Zaidín, CSIC, Granada, Spain.
| | - Simeón Aguayo-Trinidad
- Departamento de Bioquímica, Biología Celular y Molecular de Plantas, Estación Experimental del Zaidín, CSIC, Granada, Spain
| | - Takahisa Ogawa
- Department of Advanced Bioscience, Faculty of Agriculture, Kinki University, 3327-204 Nakamachi, Nara 631-8505, Japan
| | - Kazuya Yoshimura
- Department of Food and Nutritional Science, College of Bioscience and Biotechnology, Chubu University, 1200 Matsumoto-cho, Kasugai, Aichi 487-8501, Japan
| | - Shigeru Shigeoka
- Department of Advanced Bioscience, Faculty of Agriculture, Kinki University, 3327-204 Nakamachi, Nara 631-8505, Japan
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27
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Dąbrowski P, Baczewska AH, Pawluśkiewicz B, Paunov M, Alexantrov V, Goltsev V, Kalaji MH. Prompt chlorophyll a fluorescence as a rapid tool for diagnostic changes in PSII structure inhibited by salt stress in Perennial ryegrass. JOURNAL OF PHOTOCHEMISTRY AND PHOTOBIOLOGY B-BIOLOGY 2016; 157:22-31. [PMID: 26878219 DOI: 10.1016/j.jphotobiol.2016.02.001] [Citation(s) in RCA: 56] [Impact Index Per Article: 7.0] [Reference Citation Analysis] [Abstract] [Key Words] [Track Full Text] [Subscribe] [Scholar Register] [Received: 09/06/2015] [Revised: 01/23/2016] [Accepted: 02/01/2016] [Indexed: 12/25/2022]
Abstract
Perennial ryegrass (Lolium perenne L.) is one of the most popular grass species in Europe. It is commonly used for establishing the lawns in urban areas, where the salt stress is one of the major environmental conditions limiting its growth. The basic aim of this study was the detailed in vivo analysis of the changes in photosynthetic efficiency, induced by salt stress, of two lawn varieties of Perennial ryegrass and to find out the variety of better properties to create lawn on the soils contaminated with salt. Two lawn varieties of L. perenne L. were used: Nira and Roadrunner. The salinization was applied 8 weeks after sowing by adding NaCl in water solution (0, 0.15, and 0.30 M). The measurements were carried out 8 times: 0, 24, 48, 96, 144, 192, 240 and 288 h after salinization. Our results revealed that the disturbance of PSII function could easily be estimated by measuring chlorophyll a fluorescence and analyzing that signal by JIP-test. Our work allowed to identify various limiting parameters of photosynthetic efficiency of perennial ryegrass lawn varieties grown under salt stress conditions. This knowledge can allow for selection of plants with a higher potential photosynthetic efficiency (vitality) during salt stress conditions, that can be used successfully neighboring roads, where salt is applied.
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Affiliation(s)
- P Dąbrowski
- Department of Environmental Improvement, Warsaw University of Life Science, 159 Nowoursynowska St., 02-776 Warsaw, Poland
| | - A H Baczewska
- Polish Academy of Sciences Botanical Garden-Center for Biological Diversity Conservation in Powsin, 2 Prawdziwka St., 02-973 Warsaw, Poland
| | - B Pawluśkiewicz
- Department of Environmental Improvement, Warsaw University of Life Science, 159 Nowoursynowska St., 02-776 Warsaw, Poland
| | - M Paunov
- Department of Biophysics and Radiobiology, University of Sofia "St. Kliment Ohridski", 1164 Sofia, Bulgaria
| | - V Alexantrov
- Department of Biophysics and Radiobiology, University of Sofia "St. Kliment Ohridski", 1164 Sofia, Bulgaria
| | - V Goltsev
- Department of Biophysics and Radiobiology, University of Sofia "St. Kliment Ohridski", 1164 Sofia, Bulgaria
| | - M H Kalaji
- Department of Plant Physiology, Warsaw University of Life Science, 159 Nowoursynowska St., 02-776 Warsaw, Poland.
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