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Zhou Z, Li J, Gao Y, Wang X, Wang R, Huang H, Zhang Y, Zhao L, Wang P. Research on drought stress in Medicago sativa L. from 1998 to 2023: a bibliometric analysis. FRONTIERS IN PLANT SCIENCE 2024; 15:1406256. [PMID: 38872890 PMCID: PMC11169798 DOI: 10.3389/fpls.2024.1406256] [Citation(s) in RCA: 0] [Impact Index Per Article: 0] [Reference Citation Analysis] [Abstract] [Key Words] [Track Full Text] [Figures] [Subscribe] [Scholar Register] [Received: 03/24/2024] [Accepted: 05/13/2024] [Indexed: 06/15/2024]
Abstract
Alfalfa (Medicago sativa L.) is one of the most important forage crops in the world. Drought is recognized as a major challenge limiting alfalfa production and threatening food security. Although some literature reviews have been conducted in this area, bibliometric reviews based on large amounts of published data are still lacking. In this paper, a bibliometric analysis of alfalfa drought stress from 1998-2023 was conducted using the Web of Science Core Collection database in order to assess global trends in alfalfa drought stress research and to provide new directions for future research. The results showed that the annual publication output maintained an increase in most years, with China and the United States contributing significantly to the field. Most of the journals published are specialized journals in botany, environmental science, soil science and crop science, as well as related agribusiness journals. "plant growth" and "yield" were the most frequently used keywords, reflecting the important purpose of research in this field. And two main research directions were identified: research on drought response mechanism of alfalfa and exploration of drought-resistant technology. In addition, physiological, biochemical, and molecular responses of drought tolerance and high yield in alfalfa, transgenics, and microbial fertilizer research have been hot research topics in recent years and may continue in the future. The ultimate goal of this paper is to provide a foundational reference for future research on alfalfa's drought resistance and yield optimization mechanisms, thereby enhancing the crop's application in agricultural production.
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Affiliation(s)
- Zijun Zhou
- School of Life Sciences, Guizhou Normal University, Guiyang, Guizhou, China
| | - Junqin Li
- School of Life Sciences, Guizhou Normal University, Guiyang, Guizhou, China
| | - Yang Gao
- School of Karst Science, Guizhou Normal University, Guiyang, Guizhou, China
| | - Xiangtao Wang
- School of Life Sciences, Guizhou Normal University, Guiyang, Guizhou, China
| | - Rui Wang
- School of Life Sciences, Guizhou Normal University, Guiyang, Guizhou, China
| | - Haiyan Huang
- School of Life Sciences, Guizhou Normal University, Guiyang, Guizhou, China
| | - Yu Zhang
- School of Karst Science, Guizhou Normal University, Guiyang, Guizhou, China
| | - Lili Zhao
- College of Animal Science, Guizhou University, Guiyang, Guizhou, China
| | - Puchang Wang
- School of Life Sciences, Guizhou Normal University, Guiyang, Guizhou, China
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Baranova EN, Kononenko NV, Lapshin PV, Nechaeva TL, Khaliluev MR, Zagoskina NV, Smirnova EA, Yuorieva NO, Raldugina GN, Chaban IA, Kurenina LV, Gulevich AA. Superoxide Dismutase Premodulates Oxidative Stress in Plastids for Protection of Tobacco Plants from Cold Damage Ultrastructure Damage. Int J Mol Sci 2024; 25:5544. [PMID: 38791585 PMCID: PMC11122273 DOI: 10.3390/ijms25105544] [Citation(s) in RCA: 0] [Impact Index Per Article: 0] [Reference Citation Analysis] [Abstract] [Key Words] [MESH Headings] [Grants] [Track Full Text] [Journal Information] [Subscribe] [Scholar Register] [Received: 04/07/2024] [Revised: 05/16/2024] [Accepted: 05/17/2024] [Indexed: 05/26/2024] Open
Abstract
ROS-dependent induction of oxidative damage can be used as a trigger initiating genetically determined non-specific protection in plant cells and tissues. Plants are potentially able to withstand various specific (toxic, osmotic) factors of abiotic effects, but do not have sufficient or specific sensitivity to form an adequate effective response. In this work, we demonstrate one of the possible approaches for successful cold acclimation through the formation of effective protection of photosynthetic structures due to the insertion of the heterologous FeSOD gene into the tobacco genome under the control of the constitutive promoter and equipped with a signal sequence targeting the protein to plastid. The increased enzymatic activity of superoxide dismutase in the plastid compartment of transgenic tobacco plants enables them to tolerate the oxidative factor of environmental stresses scavenging ROS. On the other hand, the cost of such resistance is quite high and, when grown under normal conditions, disturbs the arrangement of the intrachloroplastic subdomains leading to the modification of stromal thylakoids, probably significantly affecting the photosynthesis processes that regulate the efficiency of photosystem II. This is partially compensated for by the fact that, at the same time, under normal conditions, the production of peroxide induces the activation of ROS detoxification enzymes. However, a violation of a number of processes, such as the metabolism of accumulation, and utilization and transportation of sugars and starch, is significantly altered, which leads to a shift in metabolic chains. The expected step for further improvement of the applied technology could be both the use of inducible promoters in the expression cassette, and the addition of other genes encoding for hydrogen peroxide-scavenging enzymes in the genetic construct that are downstream in the metabolic chain.
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Affiliation(s)
- Ekaterina N. Baranova
- All-Russia Research Institute of Agricultural Biotechnology, Timiryazevskaya St. 42, 127550 Moscow, Russia (M.R.K.); (E.A.S.); (I.A.C.); (L.V.K.)
- N.V. Tsitsin Main Botanical Garden of Russian Academy of Sciences, 127276 Moscow, Russia
- Moscow K.A. Timiryazev Agricultural Academy (RSAU-MTAA), Russian State Agrarian University, Timiryazevskaya 49, 127434 Moscow, Russia
| | - Neonila V. Kononenko
- All-Russia Research Institute of Agricultural Biotechnology, Timiryazevskaya St. 42, 127550 Moscow, Russia (M.R.K.); (E.A.S.); (I.A.C.); (L.V.K.)
| | - Pyotr V. Lapshin
- Timiryazev Institute of Plant Physiology, Russian Academy of Sciences, Botanicheskaya St. 35, 127276 Moscow, Russia (T.L.N.); (N.V.Z.)
| | - Tatiana L. Nechaeva
- Timiryazev Institute of Plant Physiology, Russian Academy of Sciences, Botanicheskaya St. 35, 127276 Moscow, Russia (T.L.N.); (N.V.Z.)
| | - Marat R. Khaliluev
- All-Russia Research Institute of Agricultural Biotechnology, Timiryazevskaya St. 42, 127550 Moscow, Russia (M.R.K.); (E.A.S.); (I.A.C.); (L.V.K.)
- Moscow K.A. Timiryazev Agricultural Academy (RSAU-MTAA), Russian State Agrarian University, Timiryazevskaya 49, 127434 Moscow, Russia
| | - Natalia V. Zagoskina
- Timiryazev Institute of Plant Physiology, Russian Academy of Sciences, Botanicheskaya St. 35, 127276 Moscow, Russia (T.L.N.); (N.V.Z.)
| | - Elena A. Smirnova
- All-Russia Research Institute of Agricultural Biotechnology, Timiryazevskaya St. 42, 127550 Moscow, Russia (M.R.K.); (E.A.S.); (I.A.C.); (L.V.K.)
- Biology Faculty, Lomonosov Moscow State University, Leninskie Gory 1, Building 12, 119991 Moscow, Russia
- Department of Biology, MSU-BIT University, Shenzhen 518172, China
| | - Natalya O. Yuorieva
- Timiryazev Institute of Plant Physiology, Russian Academy of Sciences, Botanicheskaya St. 35, 127276 Moscow, Russia (T.L.N.); (N.V.Z.)
| | - Galina N. Raldugina
- Timiryazev Institute of Plant Physiology, Russian Academy of Sciences, Botanicheskaya St. 35, 127276 Moscow, Russia (T.L.N.); (N.V.Z.)
| | - Inna A. Chaban
- All-Russia Research Institute of Agricultural Biotechnology, Timiryazevskaya St. 42, 127550 Moscow, Russia (M.R.K.); (E.A.S.); (I.A.C.); (L.V.K.)
| | - Ludmila V. Kurenina
- All-Russia Research Institute of Agricultural Biotechnology, Timiryazevskaya St. 42, 127550 Moscow, Russia (M.R.K.); (E.A.S.); (I.A.C.); (L.V.K.)
| | - Alexander A. Gulevich
- All-Russia Research Institute of Agricultural Biotechnology, Timiryazevskaya St. 42, 127550 Moscow, Russia (M.R.K.); (E.A.S.); (I.A.C.); (L.V.K.)
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Taheri P. Crosstalk of nitro-oxidative stress and iron in plant immunity. Free Radic Biol Med 2022; 191:137-149. [PMID: 36075546 DOI: 10.1016/j.freeradbiomed.2022.08.040] [Citation(s) in RCA: 0] [Impact Index Per Article: 0] [Reference Citation Analysis] [Abstract] [Key Words] [MESH Headings] [Track Full Text] [Journal Information] [Submit a Manuscript] [Subscribe] [Scholar Register] [Received: 07/08/2022] [Revised: 08/26/2022] [Accepted: 08/29/2022] [Indexed: 11/30/2022]
Abstract
Accumulation of oxygen and nitrogen radicals and their derivatives, known as reactive oxygen species (ROS) and reactive nitrogen species (RNS), occurs throughout various phases of plant growth in association with biotic and abiotic stresses. One of the consequences of environmental stresses is disruption of homeostasis between production and scavenging of ROS and RNS, which leads to nitro-oxidative burst and affects other defense-related mechanisms, such as polyamines levels, phenolics, lignin and callose as defense components related to plant cell wall reinforcement. Although this subject has attracted huge interest, the cross-talk between these signaling molecules and iron, as a main metal element involved in the activity of various enzymes and numerous vital processes in the living cells, remains largely unexplored. Therefore, it seems necessary to pay more in depth attention to the mechanisms of plant resistance against various environmental stimuli for designing novel and effective plant protection strategies. This review is focused on advances in recent knowledge related to the role of ROS, RNS, and association of these signaling molecules with iron in plant immunity. Furthermore, the role of cell wall fortification as a main physical barrier involved in plant defense have been discussed in association with reactive species and iron ions.
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Affiliation(s)
- Parissa Taheri
- Department of Plant Protection, Faculty of Agriculture, Ferdowsi University of Mashhad, Mashhad, Iran.
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Ali A, Altaf MT, Nadeem MA, Karaköy T, Shah AN, Azeem H, Baloch FS, Baran N, Hussain T, Duangpan S, Aasim M, Boo KH, Abdelsalam NR, Hasan ME, Chung YS. Recent advancement in OMICS approaches to enhance abiotic stress tolerance in legumes. FRONTIERS IN PLANT SCIENCE 2022; 13:952759. [PMID: 36247536 PMCID: PMC9554552 DOI: 10.3389/fpls.2022.952759] [Citation(s) in RCA: 0] [Impact Index Per Article: 0] [Reference Citation Analysis] [Abstract] [Key Words] [Track Full Text] [Figures] [Subscribe] [Scholar Register] [Received: 05/25/2022] [Accepted: 08/12/2022] [Indexed: 06/16/2023]
Abstract
The world is facing rapid climate change and a fast-growing global population. It is believed that the world population will be 9.7 billion in 2050. However, recent agriculture production is not enough to feed the current population of 7.9 billion people, which is causing a huge hunger problem. Therefore, feeding the 9.7 billion population in 2050 will be a huge target. Climate change is becoming a huge threat to global agricultural production, and it is expected to become the worst threat to it in the upcoming years. Keeping this in view, it is very important to breed climate-resilient plants. Legumes are considered an important pillar of the agriculture production system and a great source of high-quality protein, minerals, and vitamins. During the last two decades, advancements in OMICs technology revolutionized plant breeding and emerged as a crop-saving tool in wake of the climate change. Various OMICs approaches like Next-Generation sequencing (NGS), Transcriptomics, Proteomics, and Metabolomics have been used in legumes under abiotic stresses. The scientific community successfully utilized these platforms and investigated the Quantitative Trait Loci (QTL), linked markers through genome-wide association studies, and developed KASP markers that can be helpful for the marker-assisted breeding of legumes. Gene-editing techniques have been successfully proven for soybean, cowpea, chickpea, and model legumes such as Medicago truncatula and Lotus japonicus. A number of efforts have been made to perform gene editing in legumes. Moreover, the scientific community did a great job of identifying various genes involved in the metabolic pathways and utilizing the resulted information in the development of climate-resilient legume cultivars at a rapid pace. Keeping in view, this review highlights the contribution of OMICs approaches to abiotic stresses in legumes. We envisage that the presented information will be helpful for the scientific community to develop climate-resilient legume cultivars.
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Affiliation(s)
- Amjad Ali
- Faculty of Agricultural Sciences and Technologies, Sivas University of Science and Technology, Sivas, Turkey
| | - Muhammad Tanveer Altaf
- Faculty of Agricultural Sciences and Technologies, Sivas University of Science and Technology, Sivas, Turkey
| | - Muhammad Azhar Nadeem
- Faculty of Agricultural Sciences and Technologies, Sivas University of Science and Technology, Sivas, Turkey
| | - Tolga Karaköy
- Faculty of Agricultural Sciences and Technologies, Sivas University of Science and Technology, Sivas, Turkey
| | - Adnan Noor Shah
- Department of Agricultural Engineering, Khwaja Fareed University of Engineering and Information Technology, Rahim Yar Khan, Pakistan
| | - Hajra Azeem
- Department of Plant Pathology, Faculty of Agricultural Sciences & Technology, Bahauddin Zakariya University, Multan, Pakistan
| | - Faheem Shehzad Baloch
- Faculty of Agricultural Sciences and Technologies, Sivas University of Science and Technology, Sivas, Turkey
| | - Nurettin Baran
- Bitkisel Uretim ve Teknolojileri Bolumu, Uygulamali Bilimler Faku Itesi, Mus Alparslan Universitesi, Mus, Turkey
| | - Tajamul Hussain
- Laboratory of Plant Breeding and Climate Resilient Agriculture, Agricultural Innovation and Management Division, Faculty of Natural Resources, Prince of Songkla University, Hat Yai, Thailand
| | - Saowapa Duangpan
- Laboratory of Plant Breeding and Climate Resilient Agriculture, Agricultural Innovation and Management Division, Faculty of Natural Resources, Prince of Songkla University, Hat Yai, Thailand
| | - Muhammad Aasim
- Faculty of Agricultural Sciences and Technologies, Sivas University of Science and Technology, Sivas, Turkey
| | - Kyung-Hwan Boo
- Subtropical/Tropical Organism Gene Bank, Department of Biotechnology, College of Applied Life Science, Jeju National University, Jeju, South Korea
| | - Nader R. Abdelsalam
- Agricultural Botany Department, Faculty of Agriculture (Saba Basha), Alexandria University, Alexandria, Egypt
| | - Mohamed E. Hasan
- Bioinformatics Department, Genetic Engineering and Biotechnology Research Institute, University of Sadat City, Sadat City, Egypt
| | - Yong Suk Chung
- Department of Plant Resources and Environment, Jeju National University, Jeju, South Korea
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Mnsod1 promotes the development of Pleurotus ostreatus and enhances the tolerance of mycelia to heat stress. Microb Cell Fact 2022; 21:155. [PMID: 35934720 PMCID: PMC9358896 DOI: 10.1186/s12934-022-01878-2] [Citation(s) in RCA: 0] [Impact Index Per Article: 0] [Reference Citation Analysis] [Abstract] [Key Words] [Track Full Text] [Download PDF] [Figures] [Journal Information] [Subscribe] [Scholar Register] [Received: 06/22/2022] [Accepted: 07/17/2022] [Indexed: 12/02/2022] Open
Abstract
Background Superoxide dismutases (SODs, EC 1.15.1.1) are defense proteins that can be used as sweepers to clear reactive oxygen species (ROS). They have been widely studied in the plant. Intensive research demonstrates that SOD plays an essential role in plants. However, in Pleurotus ostreatus, the function and regulatory pathway of SOD in the growth and development and the abiotic stress response have not been clear. Results In this study, three MnSOD-encoding genes of the P. ostreatus CCMSSC00389 strain were cloned and identified. Mnsod1, Mnsod2, and Mnsod3 were interrupted by 3, 7, and 2 introns, and encoded proteins of 204, 220, and 344 amino acids, respectively. By comparing the relative expression of three MnSOD-encoding genes in mycelia, the results showed that the gene with the highest primary expression was Mnsod1. Subsequently, the function of P. ostreatus Mnsod1 was explored by overexpression (OE) and RNA interference (RNAi). The results showed that during the growth and development of P. ostreatus, MnSOD1 protein increased gradually from mycelia to the fruiting body, but decreased in spores. The change of Mnsod1 transcription level was not consistent with the changing trend of MnSOD1 protein. Further studies showed that during primordia formation, the expression of Mnsod1 gradually increased, reaching a peak at 48 h, and the transcription level was 2.05-folds compared to control. H2O2 content progressively accumulated during the formation of primordia, and its change trend was similar to that of Mnsod1 transcription. OE-Mnsod1-1 and OE-Mnsod1-21 strains accelerated the formation of primordia. The results suggested that Mnsod1 may participate in the formation rate of P. ostreatus primordium by regulating the signal molecule H2O2. In addition, OE-Mnsod1-1 and OE-Mnsod1-21 strains shortened the mycelial recovery time after heat stress and improved the tolerance of the strains to 2.5 mM and 5 mM H2O2, which showed that Mnsod1 was involved in the response of P. ostreatus mycelium to heat stress. Conclusions This study indicates that Mnsod1 plays an active role in the formation of P. ostreatus primordia and the response to abiotic stress. Supplementary Information The online version contains supplementary material available at 10.1186/s12934-022-01878-2.
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Yousefvand P, Sohrabi Y, Heidari G, Weisany W, Mastinu A. Salicylic Acid Stimulates Defense Systems in Allium hirtifolium Grown under Water Deficit Stress. Molecules 2022; 27:3083. [PMID: 35630559 PMCID: PMC9145819 DOI: 10.3390/molecules27103083] [Citation(s) in RCA: 5] [Impact Index Per Article: 2.5] [Reference Citation Analysis] [Abstract] [Key Words] [MESH Headings] [Track Full Text] [Download PDF] [Figures] [Journal Information] [Subscribe] [Scholar Register] [Received: 04/03/2022] [Revised: 05/03/2022] [Accepted: 05/09/2022] [Indexed: 12/30/2022] Open
Abstract
Nowadays, the use of the growth regulator salicylic acid for improving a plant's resistance to environmental stresses such as drought is increasing. The present study investigated the effect of salicylic acid on the physiological traits, antioxidant enzymes, yield, and quality of Allium hirtifolium (shallots) under drought conditions for three years (2016-2017, 2017-2018, and 2018-2019). The experiment was conducted as a split-plot based on a randomized complete block design with four repeats. Irrigation as the main factor in four levels of 100% (full irrigation), 75% and 50% of the plant water requirements with non-irrigation (dryland), and salicylic acid as the sub-factor in four levels of 0, 0.75, and 1 mmol, were the studied factors in this research. The combined analysis of three-year data showed that drought reduced leaf relative water content (RWC), membrane stability index (MSI), chlorophyll content, onion yield, and increased activity of antioxidant enzymes, proline content, tang, and allicin of shallots. Shallot spraying with salicylic acid improved leaf RWC, MSI, chlorophyll content, and onion yield. The highest yield of onion (1427 gr m-2) belonged to full irrigation and foliar application of 1 mmol salicylic acid. The lowest yield (419.8 gr m-2) belonged to plats with non-irrigation and non-application of salicylic acid. By improving the effective physiological traits in resistance to water deficit, salicylic acid adjusted the effects of water deficit on the yield of shallots. Foliar application of 1 mmol salicylic acid in dryland and irrigation of 50% of the plant water requirement increased onion yield by 15.12% and 29.39%, respectively, compared to the control treatment without salicylic acid.
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Affiliation(s)
- Peyman Yousefvand
- Department of Agronomy and Plant Breeding, Faculty of Agriculture, University of Kurdistan, Sanandaj 66177, Iran; (P.Y.); (G.H.)
| | - Yousef Sohrabi
- Department of Agronomy and Plant Breeding, Faculty of Agriculture, University of Kurdistan, Sanandaj 66177, Iran; (P.Y.); (G.H.)
| | - Gholamreza Heidari
- Department of Agronomy and Plant Breeding, Faculty of Agriculture, University of Kurdistan, Sanandaj 66177, Iran; (P.Y.); (G.H.)
| | - Weria Weisany
- Department of Agriculture and Food Science, Science and Research Branch, Islamic Azad University, Tehran 14778, Iran;
| | - Andrea Mastinu
- Department of Molecular and Translational Medicine, University of Brescia, 25123 Brescia, Italy
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Raja V, Wani UM, Wani ZA, Jan N, Kottakota C, Reddy MK, Kaul T, John R. Pyramiding ascorbate-glutathione pathway in Lycopersicum esculentum confers tolerance to drought and salinity stress. PLANT CELL REPORTS 2022; 41:619-637. [PMID: 34383122 DOI: 10.1007/s00299-021-02764-8] [Citation(s) in RCA: 13] [Impact Index Per Article: 6.5] [Reference Citation Analysis] [Abstract] [Key Words] [MESH Headings] [Track Full Text] [Subscribe] [Scholar Register] [Received: 04/05/2021] [Accepted: 07/30/2021] [Indexed: 06/13/2023]
Abstract
Stacking Glutathione-Ascorbate pathway genes (PgSOD, PgAPX, PgGR, PgDHAR and PgMDHAR) under stress inducible promoter RD29A imparts significant tolerance to drought and salinity stress in Solanum lycopersicum. Although the exposure of plants to different environmental stresses results in overproduction of reactive oxygen species (ROS), many plants have developed some unique systems to alleviate the ROS production and mitigate its deleterious effect. One of the key pathways that gets activated in plants is ascorbate glutathione (AsA-GSH) pathway. To demonstrate the effect of this pathway in tomato, we developed the AsA-GSH overexpression lines by stacking the genes of the AsA-GSH pathway genes isolated from Pennisetum glaucoma (Pg) including PgSOD, PgAPX, PgGR, PgDHAR and PgMDHAR under stress inducible promoter RD29A. The overexpression lines have an improved germination and seedling growth with concomitant elevation in the survival rate. The exposure of transgenic seedlings to varying stress regiments exhibited escalation in the antioxidant enzyme activity and lesser membrane damage as reflected by decreased electrolytic leakage and little accumulation of malondialdehyde and H2O2. Furthermore, the transgenic lines accumulated high levels of osmoprotectants with increase in the relative water content. The increased photosynthetic activity and enhanced gaseous exchange parameters further confirmed the enhanced tolerance of AsA-GSH overexpression lines. We concluded that pyramiding of AsA-GSH pathway genes is an effective strategy for developing stress resistant crops.
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Affiliation(s)
- Vaseem Raja
- Plant Molecular Biology Laboratory, Department of Botany, University of Kashmir, Srinagar, Kashmir, 190006, India
| | - Umer Majeed Wani
- Plant Molecular Biology Laboratory, Department of Botany, University of Kashmir, Srinagar, Kashmir, 190006, India
- Department of Biotechnology, University of Kashmir, Srinagar, 190006, India
| | - Zubair Ahmad Wani
- Department of Biotechnology, University of Kashmir, Srinagar, 190006, India
| | - Nelofer Jan
- Plant Molecular Biology Laboratory, Department of Botany, University of Kashmir, Srinagar, Kashmir, 190006, India
| | - Chandrasekhar Kottakota
- International Center for Genetic Engineering and Biotechnology (ICGEB), New Delhi, 1100067, India
| | - Malireddy K Reddy
- International Center for Genetic Engineering and Biotechnology (ICGEB), New Delhi, 1100067, India
| | - Tanushri Kaul
- International Center for Genetic Engineering and Biotechnology (ICGEB), New Delhi, 1100067, India
| | - Riffat John
- Plant Molecular Biology Laboratory, Department of Botany, University of Kashmir, Srinagar, Kashmir, 190006, India.
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Zhang Y, Yang L, Zhang M, Yang J, Cui J, Hu H, Xu J. CfAPX, a cytosolic ascorbate peroxidase gene from Cryptomeria fortunei, confers tolerance to abiotic stress in transgenic Arabidopsis. PLANT PHYSIOLOGY AND BIOCHEMISTRY : PPB 2022; 172:167-179. [PMID: 35091196 DOI: 10.1016/j.plaphy.2022.01.011] [Citation(s) in RCA: 1] [Impact Index Per Article: 0.5] [Reference Citation Analysis] [Abstract] [Key Words] [MESH Headings] [Track Full Text] [Subscribe] [Scholar Register] [Received: 10/15/2021] [Revised: 12/15/2021] [Accepted: 01/12/2022] [Indexed: 06/14/2023]
Abstract
Plants subjected to biotic or abiotic stresses produce a large amount of reactive oxygen species (ROS). If ROS cannot be cleared in time, they cause a series of harmful reactions in plants. Ascorbate peroxidase (APX) is a key enzyme that removes ROS from plant cells and plays a vital role in plant stress resistance. However, to date, no studies on APX homologs in Cryptomeria fortunei have been reported. In this study, we isolated complementary DNA (cDNA) encoding APXfrom C. fortunei needles, which is referred to as CfAPX, by rapid amplification of cDNA ends (RACE). The full-length CfAPX sequence was 1226 bp in length and included a 750-bp open reading frame (ORF) encoding a protein of 249 amino acids. Phylogenetic analysis showed that APXs of different plant species have been highly evolutionarily conserved. CfAPX was shown to belong to the cytoplasmic subgroup and was more closely related to GbAPX of the gymnosperm Ginkgo biloba. CfAPX showed no transcriptional activity in yeast cells but was highly expressed in cones. To better handle abiotic stresses, compared with wild-type (WT) Arabidopsis thaliana, 35S::CfAPX transgenic Arabidopsis strongly expressed CfAPX, presented increased antioxidant enzyme activities, ascorbic acid (AsA) contents, chlorophyll levels and fluorescence parameter and reduced malondialdehyde (MDA) and hydrogen peroxide (H2O2) contents. In addition, CfAPX expression in C. fortunei was mostly upregulated under stress. In summary, CfAPX confers abiotic stress responses to plants, which provides a scientific basis for subsequent breeding for increased stress resistance in C. fortunei.
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Affiliation(s)
- Yingting Zhang
- Key Laboratory of Forest Genetics & Biotechnology of Ministry of Education, Co-Innovation Center for Sustainable Forestry in Southern China, College of Forestry, Nanjing Forestry University, Nanjing, 210037, China.
| | - Liwei Yang
- Key Laboratory of Forest Genetics & Biotechnology of Ministry of Education, Co-Innovation Center for Sustainable Forestry in Southern China, College of Forestry, Nanjing Forestry University, Nanjing, 210037, China.
| | - Meng Zhang
- Key Laboratory of Forest Genetics & Biotechnology of Ministry of Education, Co-Innovation Center for Sustainable Forestry in Southern China, College of Forestry, Nanjing Forestry University, Nanjing, 210037, China.
| | - Junjie Yang
- Key Laboratory of Forest Genetics & Biotechnology of Ministry of Education, Co-Innovation Center for Sustainable Forestry in Southern China, College of Forestry, Nanjing Forestry University, Nanjing, 210037, China.
| | - Jiebing Cui
- Key Laboratory of Forest Genetics & Biotechnology of Ministry of Education, Co-Innovation Center for Sustainable Forestry in Southern China, College of Forestry, Nanjing Forestry University, Nanjing, 210037, China.
| | - Hailiang Hu
- Key Laboratory of Forest Genetics & Biotechnology of Ministry of Education, Co-Innovation Center for Sustainable Forestry in Southern China, College of Forestry, Nanjing Forestry University, Nanjing, 210037, China.
| | - Jin Xu
- Key Laboratory of Forest Genetics & Biotechnology of Ministry of Education, Co-Innovation Center for Sustainable Forestry in Southern China, College of Forestry, Nanjing Forestry University, Nanjing, 210037, China.
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Lodeyro AF, Krapp AR, Carrillo N. Photosynthesis and chloroplast redox signaling in the age of global warming: stress tolerance, acclimation, and developmental plasticity. JOURNAL OF EXPERIMENTAL BOTANY 2021; 72:5919-5937. [PMID: 34111246 DOI: 10.1093/jxb/erab270] [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: 03/05/2021] [Accepted: 06/07/2021] [Indexed: 06/12/2023]
Abstract
Contemporary climate change is characterized by the increased intensity and frequency of environmental stress events such as floods, droughts, and heatwaves, which have a debilitating impact on photosynthesis and growth, compromising the production of food, feed, and biofuels for an expanding population. The need to increase crop productivity in the context of global warming has fueled attempts to improve several key plant features such as photosynthetic performance, assimilate partitioning, and tolerance to environmental stresses. Chloroplast redox metabolism, including photosynthetic electron transport and CO2 reductive assimilation, are primary targets of most stress conditions, leading to excessive excitation pressure, photodamage, and propagation of reactive oxygen species. Alterations in chloroplast redox poise, in turn, provide signals that exit the plastid and modulate plant responses to the environmental conditions. Understanding the molecular mechanisms involved in these processes could provide novel tools to increase crop yield in suboptimal environments. We describe herein various interventions into chloroplast redox networks that resulted in increased tolerance to multiple sources of environmental stress. They included manipulation of endogenous components and introduction of electron carriers from other organisms, which affected not only stress endurance but also leaf size and longevity. The resulting scenario indicates that chloroplast redox pathways have an important impact on plant growth, development, and defense that goes beyond their roles in primary metabolism. Manipulation of these processes provides additional strategies for the design of crops with improved performance under destabilized climate conditions as foreseen for the future.
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Affiliation(s)
- Anabella F Lodeyro
- Instituto de Biología Molecular y Celular de Rosario (IBR-UNR/CONICET), Facultad de Ciencias Bioquímicas y Farmacéuticas, Universidad Nacional de Rosario (UNR), Rosario, Argentina
| | - Adriana R Krapp
- Instituto de Biología Molecular y Celular de Rosario (IBR-UNR/CONICET), Facultad de Ciencias Bioquímicas y Farmacéuticas, Universidad Nacional de Rosario (UNR), Rosario, Argentina
| | - Néstor Carrillo
- Instituto de Biología Molecular y Celular de Rosario (IBR-UNR/CONICET), Facultad de Ciencias Bioquímicas y Farmacéuticas, Universidad Nacional de Rosario (UNR), Rosario, Argentina
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10
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Zhang Y, Zhang M, Hu H, Yang J, Cui J, Xu J. Cloning and cold-resistance analyses of CfICE1 gene in Cryptomeria fortunei. PLANT PHYSIOLOGY AND BIOCHEMISTRY : PPB 2021; 162:456-467. [PMID: 33744519 DOI: 10.1016/j.plaphy.2021.03.020] [Citation(s) in RCA: 3] [Impact Index Per Article: 1.0] [Reference Citation Analysis] [Abstract] [Key Words] [MESH Headings] [Track Full Text] [Subscribe] [Scholar Register] [Received: 10/10/2020] [Accepted: 03/10/2021] [Indexed: 06/12/2023]
Abstract
Cryptomeria fortunei is a conifer species that can attain a height of ~70 m and is cultivated for its timber as well as its ornamental value. It is a subtropical plant that prefers a warm and humid environment. Therefore, low temperature (LT) affects its growth, development, productivity and ecological distribution. Inducer of C-repeat binding factor (CBF) expression 1 (ICE1) plays an important role in the response to cold/freezing stress in plants through the CBF regulation pathway. To date, there is no research on homologue of ICE1 in C. fortunei. In this study, we first isolated the CfICE1 transcript from C. fortunei. The CfICE1 coding sequence was 1728 nucleotides encoding a 575-aa protein and contained a serine-rich motif, a basic helix-loop-helix-Zipper (bHLH-Zip), an ACT domain and a nuclear localization signal (NLS), which were conserved in ICE1 homologous genes. Phylogenetic analysis showed that CfICE1 and all dicots ICE1 proteins were clustered together. CfICE1 had transcriptional activity in yeast cells, was predominantly located in the nucleus and highly expressed in tender needles and roots. 35S::CfICE1 transgenic Arabidopsis thaliana could increase antioxidant enzyme activities and photosynthesis and reduce the malondialdehyde content compared to the wild-type to better cope with LT. Under LT, CfICE1 expression was higher; the C. fortunei clone with stronger cold resistance (CR) significantly upregulated the expression of CfICE1 compared to the weaker clone. In conclusion, these results suggest that CfICE1 plays an active role in CR, which provides a theoretical basis for breeding for CR in C. fortunei.
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Affiliation(s)
- Yingting Zhang
- Key Laboratory of Forest Genetics & Biotechnology of Ministry of Education, Co-Innovation Center for Sustainable Forestry in Southern China, College of Forestry, Nanjing Forestry University, Nanjing, 210037, China.
| | - Meng Zhang
- Key Laboratory of Forest Genetics & Biotechnology of Ministry of Education, Co-Innovation Center for Sustainable Forestry in Southern China, College of Forestry, Nanjing Forestry University, Nanjing, 210037, China.
| | - Hailiang Hu
- Key Laboratory of Forest Genetics & Biotechnology of Ministry of Education, Co-Innovation Center for Sustainable Forestry in Southern China, College of Forestry, Nanjing Forestry University, Nanjing, 210037, China.
| | - Junjie Yang
- Key Laboratory of Forest Genetics & Biotechnology of Ministry of Education, Co-Innovation Center for Sustainable Forestry in Southern China, College of Forestry, Nanjing Forestry University, Nanjing, 210037, China.
| | - Jiebing Cui
- Key Laboratory of Forest Genetics & Biotechnology of Ministry of Education, Co-Innovation Center for Sustainable Forestry in Southern China, College of Forestry, Nanjing Forestry University, Nanjing, 210037, China.
| | - Jin Xu
- Key Laboratory of Forest Genetics & Biotechnology of Ministry of Education, Co-Innovation Center for Sustainable Forestry in Southern China, College of Forestry, Nanjing Forestry University, Nanjing, 210037, China.
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11
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Wei MY, Liu JY, Li H, Hu WJ, Shen ZJ, Qiao F, Zhu CQ, Chen J, Liu X, Zheng HL. Proteomic analysis reveals the protective role of exogenous hydrogen sulfide against salt stress in rice seedlings. Nitric Oxide 2021; 111-112:14-30. [PMID: 33839259 DOI: 10.1016/j.niox.2021.04.002] [Citation(s) in RCA: 19] [Impact Index Per Article: 6.3] [Reference Citation Analysis] [Abstract] [Key Words] [Journal Information] [Subscribe] [Scholar Register] [Received: 12/24/2020] [Revised: 04/02/2021] [Accepted: 04/04/2021] [Indexed: 01/31/2023]
Abstract
Hydrogen sulfide (H2S) is an important gaseous signal molecule which participates in various abiotic stress responses. However, the underlying mechanism of H2S associated salt tolerance remains elusive. In this study, sodium hydrosulfide (NaHS, donor of H2S) was used to investigate the protective role of H2S against salt stress at the biochemical and proteomic levels. Antioxidant activity and differentially expressed proteins (DEPs) of rice seedlings treated by NaCl or/and exogenous H2S were investigated by the methods of biochemical approaches and comparative proteomic analysis. The protein-protein interaction (PPI) analysis was used for understanding the interaction networks of stress responsive proteins. In addition, relative mRNA levels of eight selected identified DEPs were analyzed by quantitative real-time PCR. The result showed that H2S alleviated oxidative damage caused by salt stress in rice seedling. The activities of some antioxidant enzymes and glutathione metabolism were mediated by H2S under salt stress. Proteomics analyses demonstrated that NaHS regulated antioxidant related proteins abundances and affected related enzyme activities under salt stress. Proteins related to light reaction system (PsbQ domain protein, plastocyanin oxidoreductase iron-sulfur protein), Calvin cycle (phosphoglycerate kinase, sedoheptulose-1,7-bisphosphatase precursor, ribulose-1,5-bisphosphate carboxylase/oxygenase) and chlorophyll biosynthesis (glutamate-1-semialdehyde 2,1-aminomutase, coproporphyrinogen III oxidase) are important for NaHS against salt stress. ATP synthesis related proteins, malate dehydrogenase and 2, 3-bisphosphoglycerate-independent phosphoglycerate mutase were up-regulated by NaHS under salt stress. Protein metabolism related proteins and cell structure related proteins were recovered or up-regulated by NaHS under salt stress. The PPI analysis further unraveled a complicated regulation network among above biological processes to enhance the tolerance of rice seedling to salt stress under H2S treatment. Overall, our results demonstrated that H2S takes protective roles in salt tolerance by mitigating oxidative stress, recovering photosynthetic capacity, improving primary and energy metabolism, strengthening protein metabolism and consolidating cell structure in rice seedlings.
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Affiliation(s)
- Ming-Yue Wei
- Key Laboratory for Subtropical Wetland Ecosystem Research of MOE, College of the Environment and Ecology, Xiamen University, Xiamen, Fujian, 361005, PR China
| | - Ji-Yun Liu
- Key Laboratory for Subtropical Wetland Ecosystem Research of MOE, College of the Environment and Ecology, Xiamen University, Xiamen, Fujian, 361005, PR China
| | - Huan Li
- Key Laboratory for Subtropical Wetland Ecosystem Research of MOE, College of the Environment and Ecology, Xiamen University, Xiamen, Fujian, 361005, PR China
| | - Wen-Jun Hu
- Key Laboratory for Subtropical Wetland Ecosystem Research of MOE, College of the Environment and Ecology, Xiamen University, Xiamen, Fujian, 361005, PR China; Zhejiang Academy of Agricultural Sciences, Hangzhou, Zhejiang Province, 310021, PR China
| | - Zhi-Jun Shen
- Key Laboratory for Subtropical Wetland Ecosystem Research of MOE, College of the Environment and Ecology, Xiamen University, Xiamen, Fujian, 361005, PR China
| | - Fang Qiao
- Key Laboratory for Subtropical Wetland Ecosystem Research of MOE, College of the Environment and Ecology, Xiamen University, Xiamen, Fujian, 361005, PR China
| | - Chun-Quan Zhu
- Key Laboratory for Subtropical Wetland Ecosystem Research of MOE, College of the Environment and Ecology, Xiamen University, Xiamen, Fujian, 361005, PR China
| | - Juan Chen
- Key Laboratory for Subtropical Wetland Ecosystem Research of MOE, College of the Environment and Ecology, Xiamen University, Xiamen, Fujian, 361005, PR China
| | - Xiang Liu
- Key Laboratory for Subtropical Wetland Ecosystem Research of MOE, College of the Environment and Ecology, Xiamen University, Xiamen, Fujian, 361005, PR China
| | - Hai-Lei Zheng
- Key Laboratory for Subtropical Wetland Ecosystem Research of MOE, College of the Environment and Ecology, Xiamen University, Xiamen, Fujian, 361005, PR China.
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12
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Zhang G, Ding Q, Wei B. Genome-wide identification of superoxide dismutase gene families and their expression patterns under low-temperature, salt and osmotic stresses in watermelon and melon. 3 Biotech 2021; 11:194. [PMID: 33927985 DOI: 10.1007/s13205-021-02726-7] [Citation(s) in RCA: 6] [Impact Index Per Article: 2.0] [Reference Citation Analysis] [Abstract] [Key Words] [Track Full Text] [Journal Information] [Subscribe] [Scholar Register] [Received: 11/22/2020] [Accepted: 03/10/2021] [Indexed: 12/01/2022] Open
Abstract
The growth and development of watermelon and melon are affected by abiotic stresses such as cold, salinity and drought. Plant superoxide dismutase (SOD) proteins exerted great effects on plant growth, development and response to abiotic stresses. However, little is known about the characteristics of watermelon and melon SOD gene families and their expression patterns under abiotic stresses. In this study, the genome-wide identification of SOD genes and their expression patterns under abiotic stresses has been done in watermelon and melon. Seven SODs were identified in watermelon and melon, respectively. Chromosome location indicated that the SODs were dispersedly distributed on 4-6 chromosomes. Almost all the SOD proteins contained 300 amino acids or less and the intron numbers of SODs ranged from 5 to 7. On the basis of phylogenetic analysis, the SODs were classified into six sub-groups which was also verified by similar motif composition, gene structure and sub-cellular location. Gene ontology analysis displayed that many SOD proteins participated in binding, catalytic, antioxidant activity and stimulus-response. Cis-regulatory elements related to stresses and hormones were found in the promoters of the SODs. Based on the quantitative real-time PCR, most of CmSOD and ClSOD genes showed obvious up-regulation under low-temperature, NaCl and PEG6000 treatments. The abiotic stress-responsive SOD genes were identified to improve watermelon and melon tolerance against abiotic stresses. This was a preliminary study to describe the genome-wide analysis of SOD gene family in watermelon and melon, and the results would facilitate further study of gene cloning and functional verification of SOD genes response to abiotic stresses in watermelon and melon. SUPPLEMENTARY INFORMATION The online version contains supplementary material available at 10.1007/s13205-021-02726-7.
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Affiliation(s)
- Gaoyuan Zhang
- College of Horticulture, Gansu Agricultural University, Lanzhou, 730070 Gansu China
| | - Qian Ding
- College of Floriculture, Weifang Engineering Vocational College, Qingzhou, 262500 Shandong China
| | - Bingqiang Wei
- College of Horticulture, Gansu Agricultural University, Lanzhou, 730070 Gansu China
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13
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Ge Q, Zhang Y, Xu Y, Bai M, Luo W, Wang B, Niu Y, Zhao Y, Li S, Weng Y, Wang Z, Qian Q, Chong K. Cyclophilin OsCYP20-2 with a novel variant integrates defense and cell elongation for chilling response in rice. THE NEW PHYTOLOGIST 2020; 225:2453-2467. [PMID: 31736073 PMCID: PMC7064896 DOI: 10.1111/nph.16324] [Citation(s) in RCA: 14] [Impact Index Per Article: 3.5] [Reference Citation Analysis] [Abstract] [Key Words] [MESH Headings] [Grants] [Track Full Text] [Subscribe] [Scholar Register] [Received: 06/10/2019] [Accepted: 10/31/2019] [Indexed: 05/20/2023]
Abstract
Coordinating stress defense and plant growth is a survival strategy for adaptation to different environments that contains a series of processes, such as, cell growth, division and differentiation. However, little is known about the coordination mechanism for protein conformation change. A cyclophilin OsCYP20-2 with a variant interacts with SLENDER RICE1 (SLR1) and OsFSD2 in the nucleus and chloroplasts, respectively, to integrate chilling tolerance and cell elongation in rice (Oryza sativa) (FSD2, Fe-superoxide dismutase 2). Mass spectrum assay showed that OsNuCYP20-2 localized at the nucleus (nuclear located OsCYP20-2) was a new variant of OsCYP20-2 that truncated 71 amino-acid residues in N-terminal. The loss-of function OsCYP20-2 mutant showed sensitivity to chilling stress with accumulation of extra reactive oxygen species (ROS). In chloroplasts, the full-length OsCYP20-2 promotes OsFSD2 forming homodimers which enhance its activity, eliminating the accumulation of ROS under chilling stress. However, the mutant had shorter epidermal cells in comparison with wild-type Hwayoung (HY). In the nucleus, OsCYP20-2 caused conformation change of SLR1 to promote its degradation for cell elongation. Our data reveal a cyclophilin with a variant with dual-localization in chloroplasts and the nucleus, which mediate chilling tolerance and cell elongation.
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Affiliation(s)
- Qiang Ge
- Key Laboratory of Plant Molecular PhysiologyInstitute of BotanyChinese Academy of SciencesBeijing100093China
- University of Chinese Academy of SciencesBeijing100049China
| | - Yuanyuan Zhang
- Key Laboratory of Plant Molecular PhysiologyInstitute of BotanyChinese Academy of SciencesBeijing100093China
| | - Yunyuan Xu
- Key Laboratory of Plant Molecular PhysiologyInstitute of BotanyChinese Academy of SciencesBeijing100093China
- Innovation Academy for Seed DesignChinese Academy of SciencesBeijing100101China
| | - Mingyi Bai
- The Key Laboratory of Plant Cell Engineering and Germplasm InnovationMinistry of EducationSchool of Life SciencesShandong UniversityJinan250100China
| | - Wei Luo
- Key Laboratory of Plant Molecular PhysiologyInstitute of BotanyChinese Academy of SciencesBeijing100093China
| | - Bo Wang
- Key Laboratory of Plant Molecular PhysiologyInstitute of BotanyChinese Academy of SciencesBeijing100093China
- University of Chinese Academy of SciencesBeijing100049China
| | - Yuda Niu
- Key Laboratory of Plant Molecular PhysiologyInstitute of BotanyChinese Academy of SciencesBeijing100093China
| | - Yuan Zhao
- Key Laboratory of Plant Molecular PhysiologyInstitute of BotanyChinese Academy of SciencesBeijing100093China
- University of Chinese Academy of SciencesBeijing100049China
| | - Shanshan Li
- Laboratory of Soft Matter PhysicsInstitute of PhysicsChinese Academy of SciencesBeijing100190China
| | - Yuxiang Weng
- Laboratory of Soft Matter PhysicsInstitute of PhysicsChinese Academy of SciencesBeijing100190China
| | - Zhiyong Wang
- Department of Plant BiologyCarnegie Institution for ScienceStanfordCA94305USA
| | - Qian Qian
- State Key Laboratory of Rice BiologyChina National Rice Research InstituteChinese Academy of Agricultural SciencesHangzhou310006China
| | - Kang Chong
- Key Laboratory of Plant Molecular PhysiologyInstitute of BotanyChinese Academy of SciencesBeijing100093China
- University of Chinese Academy of SciencesBeijing100049China
- Innovation Academy for Seed DesignChinese Academy of SciencesBeijing100101China
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14
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Deciphering hydrogen peroxide-induced signalling towards stress tolerance in plants. 3 Biotech 2019; 9:395. [PMID: 31656733 DOI: 10.1007/s13205-019-1924-0] [Citation(s) in RCA: 15] [Impact Index Per Article: 3.0] [Reference Citation Analysis] [Abstract] [Key Words] [Track Full Text] [Journal Information] [Subscribe] [Scholar Register] [Received: 02/06/2019] [Accepted: 09/25/2019] [Indexed: 12/15/2022] Open
Abstract
Plants encounter a variety of adverse environmental conditions, such as high salinity, drought, extreme heat/cold and heavy metals contamination (abiotic stress) or attack of various pathogens (biotic stress). These detrimental environmental factors enhanced the ROS production such as singlet oxygen (1O2), superoxide (O2 •-), hydrogen peroxide (H2O2) and hydroxyl radicals (OH•). ROS are highly reactive and directly target several cellular molecules and metabolites, which lead to severe cellular dysfunction. Plants respond to oxidative damages by activating antioxidant machinery to trigger signalling cascades for stress tolerance. H2O2 signalling balances the plant metabolism through cross-talk with other signals and plant hormones during growth, development and stress responses. H2O2 facilitates the regulation of different stress-responsive transcription factors (TFs) including NAC, Zinc finger, WRKY, ERF, MYB, DREB and bZIP as both upstream and downstream events during stress signalling. The present review focuses on the biological synthesis of the H2O2 and its effect on the upregulation of kinase genes and stress related TFs for imparting stress tolerance.
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15
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Gómez R, Vicino P, Carrillo N, Lodeyro AF. Manipulation of oxidative stress responses as a strategy to generate stress-tolerant crops. From damage to signaling to tolerance. Crit Rev Biotechnol 2019; 39:693-708. [PMID: 30991845 DOI: 10.1080/07388551.2019.1597829] [Citation(s) in RCA: 27] [Impact Index Per Article: 5.4] [Reference Citation Analysis] [Abstract] [Key Words] [Track Full Text] [Journal Information] [Subscribe] [Scholar Register] [Indexed: 02/08/2023]
Abstract
Plants exposed to hostile environmental conditions such as drought or extreme temperatures usually undergo oxidative stress, which has long been assumed to significantly contribute to the damage suffered by the organism. Reactive oxygen species (ROS) overproduced under stress conditions were proposed to destroy membrane lipids and to inactivate proteins and photosystems, ultimately leading to cell death. Accordingly, considerable effort has been devoted, over the years, to improve stress tolerance by strengthening antioxidant and dissipative mechanisms. Although the notion that ROS cause indiscriminate damage in vivo has been progressively replaced by the alternate concept that they act as signaling molecules directing critical plant developmental and environmental responses including cell death, the induction of genes encoding antioxidant activities is commonplace under many environmental stresses, suggesting that their manipulation still offers promise. The features and consequences of ROS effects depend on the balance between various interacting pathways including ROS synthesis and scavenging, energy dissipation, conjugative reactions, and eventually reductive repair. They represent many possibilities for genetic manipulation. We report, herein, a comprehensive survey of transgenic plants in which components of the ROS-associated pathways were overexpressed, and of the stress phenotypes displayed by the corresponding transformants. Genetic engineering of different stages of ROS metabolism such as synthesis, scavenging, and reductive repair revealed a strong correlation between down-regulation of ROS levels and increased stress tolerance in plants grown under controlled conditions. Field assays are scarce, and are eagerly required to assess the possible application of this strategy to agriculture.
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Affiliation(s)
- Rodrigo Gómez
- a Facultad de Ciencias Bioquímicas y Farmacéuticas, Biología del Estrés en Plantas, Instituto de Biología Molecular y Celular de Rosario (IBR-UNR/CONICET) , Universidad Nacional de Rosario (UNR) , Rosario , Argentina
| | - Paula Vicino
- a Facultad de Ciencias Bioquímicas y Farmacéuticas, Biología del Estrés en Plantas, Instituto de Biología Molecular y Celular de Rosario (IBR-UNR/CONICET) , Universidad Nacional de Rosario (UNR) , Rosario , Argentina
| | - Néstor Carrillo
- a Facultad de Ciencias Bioquímicas y Farmacéuticas, Biología del Estrés en Plantas, Instituto de Biología Molecular y Celular de Rosario (IBR-UNR/CONICET) , Universidad Nacional de Rosario (UNR) , Rosario , Argentina
| | - Anabella F Lodeyro
- a Facultad de Ciencias Bioquímicas y Farmacéuticas, Biología del Estrés en Plantas, Instituto de Biología Molecular y Celular de Rosario (IBR-UNR/CONICET) , Universidad Nacional de Rosario (UNR) , Rosario , Argentina
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16
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Javed M, Sinha A, Shukla LI. Evaluation of mature miR398 family, expression analysis and the post-transcriptional regulation evidence in gamma-irradiated and nitrogen-stressed Medicago sativa seedlings. Int J Radiat Biol 2018; 95:585-596. [PMID: 30557071 DOI: 10.1080/09553002.2019.1558298] [Citation(s) in RCA: 5] [Impact Index Per Article: 0.8] [Reference Citation Analysis] [Abstract] [Key Words] [Track Full Text] [Journal Information] [Subscribe] [Scholar Register] [Indexed: 01/24/2023]
Abstract
BACKGROUND The miR398 (microRNA398) posttranscriptionally regulates the superoxide dismutase (Cu/Zn-SOD). MATERIALS AND METHODS The miR398 level was quantitated in gamma-irradiated (20Gy and 200Gy) and nitrogen-stressed seedlings by stem-loop RT-PCR (Real Time-Polymerase chain reaction). The positional preference of nucleotide (nt) for miR398 families and new targets was done. The SOD enzyme was assayed in native PAGE (Polyacrylamide gel electrophoresis). RESULTS A relative increase in miR398-3p expression in the roots, and reduction in shoots for gamma-irradiated tissue and downregulation in miR398-5p in shoots is noted. The nitrogen stress shows upregulation of miR398-3p in roots and shoots, whereas the expression of miR398-5p is upregulated in roots and downregulated in shoots. Positional preference in miR398-3p for 1-14 nt is 90% conserved unlike miR398-5p where no nucleotide positional preference is seen. Targets obtained were functionally characterized. CONCLUSIONS The mature miR398-5p and miR398-3p levels estimated in gamma-irradiated (20 and 200Gy) and nitrogen-stressed Medicago sativa seedlings show differential levels in roots and shoots. Native PAGE of Cu/Zn-SOD suggests its negative correlation with miR398 in shoots of irradiated and nitrogen-stressed samples. The nucleotide preferences for the nucleotide for a given position and functional characterization of targets are reported herein.
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Affiliation(s)
- Mohammed Javed
- a Department of Biotechnology, School of Life Sciences , Pondicherry University , Kalapet , Puducherry , India
| | - Anshika Sinha
- a Department of Biotechnology, School of Life Sciences , Pondicherry University , Kalapet , Puducherry , India
| | - Lata Israni Shukla
- a Department of Biotechnology, School of Life Sciences , Pondicherry University , Kalapet , Puducherry , India
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17
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Singer SD, Hannoufa A, Acharya S. Molecular improvement of alfalfa for enhanced productivity and adaptability in a changing environment. PLANT, CELL & ENVIRONMENT 2018; 41:1955-1971. [PMID: 29044610 DOI: 10.1111/pce.13090] [Citation(s) in RCA: 9] [Impact Index Per Article: 1.5] [Reference Citation Analysis] [Abstract] [Key Words] [MESH Headings] [Track Full Text] [Subscribe] [Scholar Register] [Received: 06/13/2017] [Revised: 09/29/2017] [Accepted: 10/04/2017] [Indexed: 05/09/2023]
Abstract
Due to an expanding world population and increased buying power, the demand for ruminant products such as meat and milk is expected to grow substantially in coming years, and high levels of forage crop production will therefore be a necessity. Unfortunately, urbanization of agricultural land, intensive agricultural practices, and climate change are all predicted to limit crop production in the future, which means that the development of forage cultivars with improved productivity and adaptability will be essential. Because alfalfa (Medicago sativa L.) is one of the most widely cultivated perennial forage crops, it has been the target of much research in this field. In this review, we discuss progress that has been made towards the improvement of productivity, abiotic stress tolerance, and nutrient-use efficiency, as well as disease and pest resistance, in alfalfa using biotechnological techniques. Furthermore, we consider possible future priorities and avenues for attaining further enhancements in this crop as a means of contributing to the realization of food security in a changing environment.
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Affiliation(s)
- Stacy D Singer
- Agriculture and Agri-Food Canada, Lethbridge Research and Development Centre, Lethbridge, Alberta, T1J 4B1, Canada
| | - Abdelali Hannoufa
- Agriculture and Agri-Food Canada, London Research and Development Centre, London, Ontario, N5V 4T3, Canada
| | - Surya Acharya
- Agriculture and Agri-Food Canada, Lethbridge Research and Development Centre, Lethbridge, Alberta, T1J 4B1, Canada
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18
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Capstaff NM, Miller AJ. Improving the Yield and Nutritional Quality of Forage Crops. FRONTIERS IN PLANT SCIENCE 2018; 9:535. [PMID: 29740468 PMCID: PMC5928394 DOI: 10.3389/fpls.2018.00535] [Citation(s) in RCA: 48] [Impact Index Per Article: 8.0] [Reference Citation Analysis] [Abstract] [Key Words] [Track Full Text] [Subscribe] [Scholar Register] [Received: 12/06/2017] [Accepted: 04/06/2018] [Indexed: 05/02/2023]
Abstract
Despite being some of the most important crops globally, there has been limited research on forages when compared with cereals, fruits, and vegetables. This review summarizes the literature highlighting the significance of forage crops, the current improvements and some of future directions for improving yield and nutritional quality. We make the point that the knowledge obtained from model plant and grain crops can be applied to forage crops. The timely development of genomics and bioinformatics together with genome editing techniques offer great scope to improve forage crops. Given the social, environmental and economic importance of forage across the globe and especially in poorer countries, this opportunity has enormous potential to improve food security and political stability.
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19
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Zhu M, Lin J, Ye J, Wang R, Yang C, Gong J, Liu Y, Deng C, Liu P, Chen C, Cheng Y, Deng X, Zeng Y. A comprehensive proteomic analysis of elaioplasts from citrus fruits reveals insights into elaioplast biogenesis and function. HORTICULTURE RESEARCH 2018; 5:6. [PMID: 29423236 PMCID: PMC5802726 DOI: 10.1038/s41438-017-0014-x] [Citation(s) in RCA: 11] [Impact Index Per Article: 1.8] [Reference Citation Analysis] [Abstract] [Track Full Text] [Subscribe] [Scholar Register] [Received: 08/13/2017] [Revised: 12/07/2017] [Accepted: 12/10/2017] [Indexed: 05/02/2023]
Abstract
Elaioplasts of citrus peel are colorless plastids which accumulate significant amounts of terpenes. However, other functions of elaioplasts have not been fully characterized to date. Here, a LC-MS/MS shotgun technology was applied to identify the proteins from elaioplasts that were highly purified from young fruit peel of kumquat. A total of 655 putative plastid proteins were identified from elaioplasts according to sequence homology in silico and manual curation. Based on functional classification via Mapman, ~50% of the identified proteins fall into six categories, including protein metabolism, transport, and lipid metabolism. Of note, elaioplasts contained ATP synthase and ADP, ATP carrier proteins at high abundance, indicating important roles for ATP generation and transport in elaioplast biogenesis. Additionally, a comparison of proteins between citrus chromoplast and elaioplast proteomes suggest a high level of functional conservation. However, some distinctive protein profiles were also observed in both types of plastids notably for isoprene biosynthesis in elaioplasts, and carotenoid metabolism in chromoplasts. In conclusion, this comprehensive proteomic study provides new insights into the major metabolic pathways and unique characteristics of elaioplasts and chromoplasts in citrus fruit.
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Affiliation(s)
- Man Zhu
- Key Laboratory of Horticultural Plant Biology (Ministry of Education), College of Horticulture and Forestry Science, Huazhong Agricultural University, Wuhan, 430070 China
- Institute of Citrus Science, Huazhong Agricultural University, Wuhan, 430070 China
| | - Jiajia Lin
- Key Laboratory of Horticultural Plant Biology (Ministry of Education), College of Horticulture and Forestry Science, Huazhong Agricultural University, Wuhan, 430070 China
- Institute of Citrus Science, Huazhong Agricultural University, Wuhan, 430070 China
| | - Junli Ye
- Key Laboratory of Horticultural Plant Biology (Ministry of Education), College of Horticulture and Forestry Science, Huazhong Agricultural University, Wuhan, 430070 China
- Institute of Citrus Science, Huazhong Agricultural University, Wuhan, 430070 China
| | - Rui Wang
- Shanghai Applied Protein Technology Co. Ltd, Shanghai, 200233 China
| | - Chao Yang
- Shanghai Applied Protein Technology Co. Ltd, Shanghai, 200233 China
| | - Jinli Gong
- Key Laboratory of Horticultural Plant Biology (Ministry of Education), College of Horticulture and Forestry Science, Huazhong Agricultural University, Wuhan, 430070 China
- Institute of Citrus Science, Huazhong Agricultural University, Wuhan, 430070 China
| | - Yun Liu
- Key Laboratory of Horticultural Plant Biology (Ministry of Education), College of Horticulture and Forestry Science, Huazhong Agricultural University, Wuhan, 430070 China
- Institute of Citrus Science, Huazhong Agricultural University, Wuhan, 430070 China
| | - Chongling Deng
- Guangxi Citrus Research Institute, Guangxi, 541004 China
| | - Ping Liu
- Guangxi Citrus Research Institute, Guangxi, 541004 China
| | - Chuanwu Chen
- Guangxi Citrus Research Institute, Guangxi, 541004 China
| | - Yunjiang Cheng
- Key Laboratory of Horticultural Plant Biology (Ministry of Education), College of Horticulture and Forestry Science, Huazhong Agricultural University, Wuhan, 430070 China
- Institute of Citrus Science, Huazhong Agricultural University, Wuhan, 430070 China
| | - Xiuxin Deng
- Key Laboratory of Horticultural Plant Biology (Ministry of Education), College of Horticulture and Forestry Science, Huazhong Agricultural University, Wuhan, 430070 China
- Institute of Citrus Science, Huazhong Agricultural University, Wuhan, 430070 China
| | - Yunliu Zeng
- Key Laboratory of Horticultural Plant Biology (Ministry of Education), College of Horticulture and Forestry Science, Huazhong Agricultural University, Wuhan, 430070 China
- Institute of Citrus Science, Huazhong Agricultural University, Wuhan, 430070 China
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20
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Guan Q, Liao X, He M, Li X, Wang Z, Ma H, Yu S, Liu S. Tolerance analysis of chloroplast OsCu/Zn-SOD overexpressing rice under NaCl and NaHCO3 stress. PLoS One 2017; 12:e0186052. [PMID: 29020034 PMCID: PMC5636109 DOI: 10.1371/journal.pone.0186052] [Citation(s) in RCA: 38] [Impact Index Per Article: 5.4] [Reference Citation Analysis] [Abstract] [MESH Headings] [Grants] [Track Full Text] [Download PDF] [Figures] [Journal Information] [Subscribe] [Scholar Register] [Received: 04/06/2017] [Accepted: 09/25/2017] [Indexed: 12/16/2022] Open
Abstract
The 636-bp-long cDNA sequence of OsCu/Zn-SOD (AK059841) was cloned from Oryza sativa var. Longjing11 via reverse transcription polymerase chain reaction (RT-PCR). The encoded protein comprised of 211 amino acids is highly homologous to Cu/Zn-SOD proteins from tuscacera rice and millet. Quantitative RT-PCR revealed that in rice, the level of OsCu/Zn-SOD gene expression was lowest in roots and was highest in petals and during the S5 leaf stage. Moreover, the expression level of OsCu/Zn-SOD gene expression decreased during the L5 leaf stage to maturity. The level of OsCu/Zn-SOD gene expression, however, was increased under saline–sodic stress and NaHCO3 stress. Germination tests under 125, 150, and 175 mM NaCl revealed that OsCu/Zn-SOD-overexpressing lines performed better than the non-transgenic (NT) Longjing11 lines in terms of germination rate and height. Subjecting seedlings to NaHCO3 and water stress revealed that OsCu/Zn-SOD-overexpressing lines performed better than NT in terms of SOD activity, fresh weight, root length, and height. Under simulated NaHCO3 stress, OsCu/Zn-SOD-overexpressing lines performed better than NT in terms of survival rate (25.19% > 6.67%) and yield traits (average grain weight 20.6 > 18.15 g). This study showed that OsCu/Zn-SOD gene overexpression increases the detoxification capacity of reactive oxygen species in O. sativa and reduces salt-induced oxidative damage. We also revealed the regulatory mechanism of OsCu/Zn-SOD enzyme in saline–sodic stress resistance in O. sativa. Moreover, we provided an experimental foundation for studying the mechanism of OsCu/Zn-SOD enzymes in the chloroplast.
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Affiliation(s)
- Qingjie Guan
- Key Laboratory of Saline-alkali Vegetation Ecology Restoration (SAVER), Ministry of Education, Alkali Soil Natural Environmental Science Center (ASNESC), Northeast Forestry University, Harbin, China
| | - Xu Liao
- Key Laboratory of Saline-alkali Vegetation Ecology Restoration (SAVER), Ministry of Education, Alkali Soil Natural Environmental Science Center (ASNESC), Northeast Forestry University, Harbin, China
| | - Mingliang He
- Key Laboratory of Saline-alkali Vegetation Ecology Restoration (SAVER), Ministry of Education, Alkali Soil Natural Environmental Science Center (ASNESC), Northeast Forestry University, Harbin, China
| | - Xiufeng Li
- Lab of Soybean Molecular Biology and Molecular Breeding, Northeast Institute of Geography and Agroecology, Chinese Academy of Sciences, Nangang District, Harbin City, Heilongjiang, China
| | - Zhenyu Wang
- Lab of Soybean Molecular Biology and Molecular Breeding, Northeast Institute of Geography and Agroecology, Chinese Academy of Sciences, Nangang District, Harbin City, Heilongjiang, China
| | - Haiyan Ma
- Key Laboratory of Saline-alkali Vegetation Ecology Restoration (SAVER), Ministry of Education, Alkali Soil Natural Environmental Science Center (ASNESC), Northeast Forestry University, Harbin, China
| | - Song Yu
- Key Laboratory of Saline-alkali Vegetation Ecology Restoration (SAVER), Ministry of Education, Alkali Soil Natural Environmental Science Center (ASNESC), Northeast Forestry University, Harbin, China
| | - Shenkui Liu
- Key Laboratory of Saline-alkali Vegetation Ecology Restoration (SAVER), Ministry of Education, Alkali Soil Natural Environmental Science Center (ASNESC), Northeast Forestry University, Harbin, China
- * E-mail:
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21
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Wang W, Xia MX, Chen J, Yuan R, Deng FN, Shen FF. Gene Expression Characteristics and Regulation Mechanisms of Superoxide Dismutase and Its Physiological Roles in Plants under Stress. BIOCHEMISTRY (MOSCOW) 2017; 81:465-80. [PMID: 27297897 DOI: 10.1134/s0006297916050047] [Citation(s) in RCA: 53] [Impact Index Per Article: 7.6] [Reference Citation Analysis] [Abstract] [Track Full Text] [Subscribe] [Scholar Register] [Indexed: 11/22/2022]
Abstract
Superoxide dismutases (SODs) are key enzymes functioning as the first line of antioxidant defense by virtue of the ability to convert highly reactive superoxide radicals to hydrogen peroxide and molecular oxygen. SOD plays a central role in protecting plants against the toxic effects of reactive oxygen species generated during normal cellular metabolic activity or as a result of various environmental stresses. Our review focuses on the characteristics of expression of SOD genes, the mechanisms regulating expression of SOD genes at transcriptional, posttranscriptional, and translation levels, and their functional role(s) during development and in response to biotic or abiotic stresses. We propose two important research directions: studying SOD at the genome-wide or proteome-wide level, and improving plant stress tolerances by selecting varieties using transgenic technology.
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Affiliation(s)
- W Wang
- State Key Laboratory of Crop Biology, College of Agronomy, Shandong Agricultural University, Tai'an, Shandong, 271018, China.
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22
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Lu F, Liang X, Lu H, Li Q, Chen Q, Zhang P, Li K, Liu G, Yan W, Song J, Duan C, Zhang L. Overproduction of superoxide dismutase and catalase confers cassava resistance to Tetranychus cinnabarinus. Sci Rep 2017; 7:40179. [PMID: 28054665 PMCID: PMC5214258 DOI: 10.1038/srep40179] [Citation(s) in RCA: 35] [Impact Index Per Article: 5.0] [Reference Citation Analysis] [Abstract] [MESH Headings] [Track Full Text] [Download PDF] [Figures] [Journal Information] [Subscribe] [Scholar Register] [Received: 04/05/2016] [Accepted: 12/05/2016] [Indexed: 12/30/2022] Open
Abstract
To explore the role of protective enzymes in cassava (Manihot esculenta Crantz) resistance to mites, transgenic cassava lines overproducing copper/zinc superoxide dismutase (MeCu/ZnSOD) and catalase (MeCAT1) were used to evaluate and molecularly confirm cassava resistance to Tetranychus cinnabarinus. Laboratory evaluation demonstrated that, compared with the control cultivar TMS60444 (wild type, WT), the survival, reproduction, development and activities of SOD and CAT in T. cinnabarinus feeding on transgenic cassava lines SC2, SC4, and SC11 significantly inhibited. Furthermore, the activities of SOD and CAT in transgenic cassava lines SC2, SC4, and SC11 damaged by T. cinnabarinus significantly increased. These findings were similar to the results in the mite-resistant cassava cultivars. Besides, field evaluation indicated that the transgenic cassava lines SC2, SC4, and SC11 were slightly damaged as the highly mite-resistant control C1115, while the highly mite-susceptible WT was severely damaged by T. cinnabarinus. Laboratory and field evaluation demonstrated that transgenic cassava lines were resistant to T. cinnabarinus, which directly confirmed that the increase in SOD and CAT activities was positively related to cassava resistance to T. cinnabarinus. These results will help in understanding the antioxidant defense responses in the cassava-mite interaction and molecular breeding of mite-resistant cassava for effective pest control.
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Affiliation(s)
- Fuping Lu
- Environment and Plant Protection Institute, Chinese Academy of Tropical Agriculture Sciences, Haikou 571101, China
| | - Xiao Liang
- Environment and Plant Protection Institute, Chinese Academy of Tropical Agriculture Sciences, Haikou 571101, China
| | - Hui Lu
- Environment and Plant Protection Institute, Chinese Academy of Tropical Agriculture Sciences, Haikou 571101, China
| | - Qian Li
- Environment and Plant Protection Institute, Chinese Academy of Tropical Agriculture Sciences, Haikou 571101, China
| | - Qing Chen
- Environment and Plant Protection Institute, Chinese Academy of Tropical Agriculture Sciences, Haikou 571101, China
| | - Peng Zhang
- National Key Laboratory of Plant Molecular Genetics, CAS Center for Excellence in Molecular Plant Sciences, Institute of Plant Physiology and Ecology, Shanghai Institutes for Biological Sciences, Chinese Academy of Sciences, Shanghai 200032, China
| | - kaimian Li
- Tropical Crops Genetic Resources Institute, Chinese Academy of Tropical Agriculture Sciences, Haikou 571101, China
| | - Guanghua Liu
- Institute of Tropical and Sub-tropical Cash Crops, Yunnan Academy of Agricultural Sciences, Baoshan 678025, China
| | - Wei Yan
- Institute of Tropical and Sub-tropical Cash Crops, Yunnan Academy of Agricultural Sciences, Baoshan 678025, China
| | - Jiming Song
- Institute of Tropical and Sub-tropical Cash Crops, Yunnan Academy of Agricultural Sciences, Baoshan 678025, China
| | - Chunfang Duan
- Institute of Tropical and Sub-tropical Cash Crops, Yunnan Academy of Agricultural Sciences, Baoshan 678025, China
| | - Linhui Zhang
- Institute of Tropical and Sub-tropical Cash Crops, Yunnan Academy of Agricultural Sciences, Baoshan 678025, China
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23
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Liu Y, He C. A review of redox signaling and the control of MAP kinase pathway in plants. Redox Biol 2016; 11:192-204. [PMID: 27984790 PMCID: PMC5157795 DOI: 10.1016/j.redox.2016.12.009] [Citation(s) in RCA: 81] [Impact Index Per Article: 10.1] [Reference Citation Analysis] [Abstract] [Key Words] [Track Full Text] [Download PDF] [Figures] [Journal Information] [Subscribe] [Scholar Register] [Received: 10/31/2016] [Accepted: 12/08/2016] [Indexed: 02/02/2023] Open
Abstract
Mitogen-activated protein kinase (MAPK) cascades are evolutionarily conserved modules among eukaryotic species that range from yeast, plants, flies to mammals. In eukaryotic cells, reactive oxygen species (ROS) has both physiological and toxic effects. Both MAPK cascades and ROS signaling are involved in plant response to various biotic and abiotic stresses. It has been observed that not only can ROS induce MAPK activation, but also that disturbing MAPK cascades can modulate ROS production and responses. This review will discuss the potential mechanisms by which ROS may activate and/or regulate MAPK cascades in plants. The role of MAPK cascades and ROS signaling in regulating gene expression, stomatal function, and programmed cell death (PCD) is also discussed. In addition, the relationship between Rboh-dependent ROS production and MAPK activation in PAMP-triggered immunity will be reviewed.
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Affiliation(s)
- Yukun Liu
- Key Laboratory for Forest Resources Conservation and Utilization in the Southwest Mountains of China, Ministry of Education, College of Forestry, Southwest Forestry University, 300 Bailong Si, Kunming 650224, Yunnan, People's Republic of China; Key Laboratory for Forest Genetic and Tree Improvement & Propagation in Universities of Yunnan Province, College of Forestry, Southwest Forestry University, 300 Bailong Si, Kunming 650224, Yunnan, People's Republic of China.
| | - Chengzhong He
- Key Laboratory for Forest Genetic and Tree Improvement & Propagation in Universities of Yunnan Province, College of Forestry, Southwest Forestry University, 300 Bailong Si, Kunming 650224, Yunnan, People's Republic of China
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24
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Kaouthar F, Ameny FK, Yosra K, Walid S, Ali G, Faiçal B. Responses of transgenic Arabidopsis plants and recombinant yeast cells expressing a novel durum wheat manganese superoxide dismutase TdMnSOD to various abiotic stresses. JOURNAL OF PLANT PHYSIOLOGY 2016; 198:56-68. [PMID: 27152457 DOI: 10.1016/j.jplph.2016.03.019] [Citation(s) in RCA: 10] [Impact Index Per Article: 1.3] [Reference Citation Analysis] [Abstract] [Key Words] [MESH Headings] [Track Full Text] [Subscribe] [Scholar Register] [Received: 12/07/2015] [Revised: 03/23/2016] [Accepted: 03/23/2016] [Indexed: 05/09/2023]
Abstract
In plant cells, the manganese superoxide dismutase (Mn-SOD) plays an elusive role in the response to oxidative stress. In this study, we describe the isolation and functional characterization of a novel Mn-SOD from durum wheat (Triticum turgidum L. subsp. Durum), named TdMnSOD. Molecular phylogeny analysis showed that the durum TdMnSOD exhibited high amino acids sequence identity with other Mn-SOD plants. The three-dimensional structure showed that TdMnSOD forms a homotetramer and each subunit is composed of a predominantly α-helical N-terminal domain and a mixed α/β C-terminal domain. TdMnSOD gene expression analysis showed that this gene was induced by various abiotic stresses in durum wheat. The expression of TdMnSOD enhances tolerance of the transformed yeast cells to salt, osmotic, cold and H2O2-induced oxidative stresses. Moreover, the analysis of TdMnSOD transgenic Arabidopsis plants subjected to different environmental stresses revealed low H2O2 and high proline levels as compared to the wild-type plants. Compared with the non-transformed plants, an increase in the total SOD and two other antioxidant enzyme activities including catalase (CAT) and peroxidases (POD) was observed in the three transgenic lines subjected to abiotic stress. Taken together, these data provide evidence for the involvement of durum wheat TdMnSOD in tolerance to multiple abiotic stresses in crop plants.
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Affiliation(s)
- Feki Kaouthar
- Biotechnology and Plant Improvement Laboratory, Centre of Biotechnology of Sfax, Tunisia
| | | | - Kamoun Yosra
- Laboratory of Molecular Biotechnology of Eukaryotes, Centre of Biotechnology of Sfax, Tunisia
| | - Saibi Walid
- Biotechnology and Plant Improvement Laboratory, Centre of Biotechnology of Sfax, Tunisia
| | - Gargouri Ali
- Laboratory of Molecular Biotechnology of Eukaryotes, Centre of Biotechnology of Sfax, Tunisia
| | - Brini Faiçal
- Biotechnology and Plant Improvement Laboratory, Centre of Biotechnology of Sfax, Tunisia.
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25
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Rai AN, Tamirisa S, Rao KV, Kumar V, Suprasanna P. Brassica RNA binding protein ERD4 is involved in conferring salt, drought tolerance and enhancing plant growth in Arabidopsis. PLANT MOLECULAR BIOLOGY 2016; 90:375-87. [PMID: 26711633 DOI: 10.1007/s11103-015-0423-x] [Citation(s) in RCA: 5] [Impact Index Per Article: 0.6] [Reference Citation Analysis] [Abstract] [Key Words] [MESH Headings] [Track Full Text] [Subscribe] [Scholar Register] [Received: 02/23/2015] [Accepted: 12/22/2015] [Indexed: 05/24/2023]
Abstract
'Early responsive to dehydration' (ERD) genes are a group of plant genes having functional roles in plant stress tolerance and development. In this study, we have isolated and characterized a Brassica juncea 'ERD' gene (BjERD4) which encodes a novel RNA binding protein. The expression pattern of ERD4 analyzed under different stress conditions showed that transcript levels were increased with dehydration, sodium chloride, low temperature, heat, abscisic acid and salicylic acid treatments. The BjERD4 was found to be localized in the chloroplasts as revealed by Confocal microscopy studies. To study the function, transgenic Arabidopsis plants were generated and analyzed for various morphological and physiological parameters. The overexpressing transgenic lines showed significant increase in number of leaves with more leaf area and larger siliques as compared to wild type plants, whereas RNAi:ERD4 transgenic lines showed reduced leaf number, leaf area, dwarf phenotype and delayed seed germination. Transgenic Arabidopsis plants overexpressing BjERD4 gene also exhibited enhanced tolerance to dehydration and salt stresses, while the knockdown lines were susceptible as compared to wild type plants under similar stress conditions. It was observed that BjERD4 protein could bind RNA as evidenced by the gel-shift assay. The overall results of transcript analysis, RNA gel-shift assay, and transgenic expression, for the first time, show that the BjERD4 is involved in abiotic stress tolerance besides offering new clues about the possible roles of BjERD4 in plant growth and development.
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Affiliation(s)
- Archana N Rai
- Plant Stress Physiology and Biotechnology Section, Nuclear Agriculture and Biotechnology Division, Bhabha Atomic Research Centre, Mumbai, 400085, India
| | - Srinath Tamirisa
- Centre for Plant Molecular Biology, Osmania University, Hyderabad, 500007, India
| | - K V Rao
- Centre for Plant Molecular Biology, Osmania University, Hyderabad, 500007, India
| | - Vinay Kumar
- Solid State Physics Division, Bhabha Atomic Research Centre, Mumbai, 400085, India
| | - P Suprasanna
- Plant Stress Physiology and Biotechnology Section, Nuclear Agriculture and Biotechnology Division, Bhabha Atomic Research Centre, Mumbai, 400085, India.
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26
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Geng XM, Liu X, Ji M, Hoffmann WA, Grunden A, Xiang QYJ. Enhancing Heat Tolerance of the Little Dogwood Cornus canadensis L. f. with Introduction of a Superoxide Reductase Gene from the Hyperthermophilic Archaeon Pyrococcus furiosus. FRONTIERS IN PLANT SCIENCE 2016; 7:26. [PMID: 26858741 PMCID: PMC4731543 DOI: 10.3389/fpls.2016.00026] [Citation(s) in RCA: 4] [Impact Index Per Article: 0.5] [Reference Citation Analysis] [Abstract] [Key Words] [Track Full Text] [Figures] [Subscribe] [Scholar Register] [Received: 09/24/2015] [Accepted: 01/09/2016] [Indexed: 06/05/2023]
Abstract
Production of reactive oxygen species (ROS) can be accelerated under various biotic and abiotic stresses causing lipid peroxidation, protein degradation, enzyme inactivation, and DNA damage. Superoxide reductase (SOR) is a novel antioxidant enzyme from Pyrococcus furiosus and is employed by this anaerobic hyperthermophilic archaeon for efficient detoxification of ROS. In this study, SOR was introduced into a flowering plant Cornus canadensis to enhance its heat tolerance and reduce heat induced damage. A fusion construct of the SOR gene and Green Fluorescent Protein gene (GFP) was introduced into C. canadensis using Agrobacterium-mediated transformation. Heat tolerance of the GFP-SOR expressing transgenic plants was investigated by observing morphological symptoms of heat injury and by examining changes in photosynthesis, malondialdehyde (MDA), and proline levels in the plants. Our results indicate that the expression of the P. furiosus SOR gene in the transgenic plants alleviated lipid peroxidation of cell membranes and photoinhibition of PS II, and decreased the accumulation of proline at 40°C. After a series of exposures to increasing temperatures, the SOR transgenic plants remained healthy and green whereas most of the non-transgenic plants dried up and were unable to recover. While it had previously been reported that expression of SOR in Arabidopsis enhanced heat tolerance, this is the first report of the successful demonstration of improved heat tolerance in a non-model plant resulting from the introduction of P. furiosus SOR. The study demonstrates the potential of SOR for crop improvement and that inherent limitations of plant heat tolerance can be ameliorated with P. furiosus SOR.
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Affiliation(s)
- Xing-Min Geng
- Department of Plant and Microbial Biology, North Carolina State University, RaleighNC, USA
- College of Landscape Architecture, Nanjing Forestry UniversityNanjing, China
| | - Xiang Liu
- Department of Plant and Microbial Biology, North Carolina State University, RaleighNC, USA
| | - Mikyoung Ji
- Department of Plant and Microbial Biology, North Carolina State University, RaleighNC, USA
| | - William A. Hoffmann
- Department of Plant and Microbial Biology, North Carolina State University, RaleighNC, USA
| | - Amy Grunden
- Department of Plant and Microbial Biology, North Carolina State University, RaleighNC, USA
| | - Qiu-Yun J. Xiang
- Department of Plant and Microbial Biology, North Carolina State University, RaleighNC, USA
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27
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Shiraya T, Mori T, Maruyama T, Sasaki M, Takamatsu T, Oikawa K, Itoh K, Kaneko K, Ichikawa H, Mitsui T. Golgi/plastid-type manganese superoxide dismutase involved in heat-stress tolerance during grain filling of rice. PLANT BIOTECHNOLOGY JOURNAL 2015; 13:1251-63. [PMID: 25586098 PMCID: PMC6680209 DOI: 10.1111/pbi.12314] [Citation(s) in RCA: 20] [Impact Index Per Article: 2.2] [Reference Citation Analysis] [Abstract] [Key Words] [MESH Headings] [Track Full Text] [Subscribe] [Scholar Register] [Received: 08/06/2014] [Accepted: 11/19/2014] [Indexed: 05/20/2023]
Abstract
Superoxide dismutase (SOD) is widely assumed to play a role in the detoxification of reactive oxygen species caused by environmental stresses. We found a characteristic expression of manganese SOD 1 (MSD1) in a heat-stress-tolerant cultivar of rice (Oryza sativa). The deduced amino acid sequence contains a signal sequence and an N-glycosylation site. Confocal imaging analysis of rice and onion cells transiently expressing MSD1-YFP showed MSD1-YFP in the Golgi apparatus and plastids, indicating that MSD1 is a unique Golgi/plastid-type SOD. To evaluate the involvement of MSD1 in heat-stress tolerance, we generated transgenic rice plants with either constitutive high expression or suppression of MSD1. The grain quality of rice with constitutive high expression of MSD1 grown at 33/28 °C, 12/12 h, was significantly better than that of the wild type. In contrast, MSD1-knock-down rice was markedly susceptible to heat stress. Quantitative shotgun proteomic analysis indicated that the overexpression of MSD1 up-regulated reactive oxygen scavenging, chaperone and quality control systems in rice grains under heat stress. We propose that the Golgi/plastid MSD1 plays an important role in adaptation to heat stress.
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Affiliation(s)
- Takeshi Shiraya
- Department of Applied Biological Chemistry, Niigata University, Niigata, Japan
| | - Taiki Mori
- Graduate School of Science and Technology, Niigata University, Niigata, Japan
| | - Tatsuya Maruyama
- Graduate School of Science and Technology, Niigata University, Niigata, Japan
| | - Maiko Sasaki
- Graduate School of Science and Technology, Niigata University, Niigata, Japan
| | - Takeshi Takamatsu
- Graduate School of Science and Technology, Niigata University, Niigata, Japan
| | - Kazusato Oikawa
- Department of Applied Biological Chemistry, Niigata University, Niigata, Japan
| | - Kimiko Itoh
- Graduate School of Science and Technology, Niigata University, Niigata, Japan
| | - Kentaro Kaneko
- Department of Applied Biological Chemistry, Niigata University, Niigata, Japan
| | - Hiroaki Ichikawa
- Division of Plant Sciences, National Institute of Agrobiological Sciences, Tsukuba, Japan
| | - Toshiaki Mitsui
- Department of Applied Biological Chemistry, Niigata University, Niigata, Japan
- Graduate School of Science and Technology, Niigata University, Niigata, Japan
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28
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Xing Y, Chen WH, Jia W, Zhang J. Mitogen-activated protein kinase kinase 5 (MKK5)-mediated signalling cascade regulates expression of iron superoxide dismutase gene in Arabidopsis under salinity stress. JOURNAL OF EXPERIMENTAL BOTANY 2015; 66:5971-81. [PMID: 26136265 PMCID: PMC4566985 DOI: 10.1093/jxb/erv305] [Citation(s) in RCA: 40] [Impact Index Per Article: 4.4] [Reference Citation Analysis] [Abstract] [Key Words] [MESH Headings] [Grants] [Track Full Text] [Subscribe] [Scholar Register] [Indexed: 05/20/2023]
Abstract
Superoxide dismutases (SODs) are involved in plant adaptive responses to biotic and abiotic stresses but the upstream signalling process that modulates their expression is not clear. Expression of two iron SODs, FSD2 and FSD3, was significantly increased in Arabidopsis in response to NaCl treatment but blocked in transgenic MKK5-RNAi plant, mkk5. Using an assay system for transient expression in protoplasts, it was found that mitogen-activated protein kinase kinase 5 (MKK5) was also activated in response to salt stress. Overexpression of MKK5 in wild-type plants enhanced their tolerance to salt treatments, while mkk5 mutant exhibited hypersensitivity to salt stress in germination on salt-containing media. Moreover, another kinase, MPK6, was also involved in the MKK5-mediated iron superoxide dismutase (FSD) signalling pathway in salt stress. The kinase activity of MPK6 was totally turned off in mkk5, whereas the activity of MPK3 was only partially blocked. MKK5 interacted with the MEKK1 protein that was also involved in the salt-induced FSD signalling pathway. These data suggest that salt-induced FSD2 and FSD3 expressions are influenced by MEKK1 via MKK5-MPK6-coupled signalling. This MAP kinase cascade (MEKK1, MKK5, and MPK6) mediates the salt-induced expression of iron superoxide dismutases.
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Affiliation(s)
- Yu Xing
- Beijing Key Laboratory for Agricultural Application and New Technique and College of Plant Science and Technology, Beijing University of Agriculture, Beijing, China
| | - Wei-hua Chen
- Institute of Agro-Products Processing Science & Technology CAAS, Beijing, China
| | - Wensuo Jia
- College of Agronomy and Biotechnology, China Agricultural University, Beijing, China
| | - Jianhua Zhang
- School of Life Sciences, State Key Laboratory of Agrobiotechnology, and Shenzhen Research Institute, The Chinese University of Hong Kong, Hong Kong, China
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29
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Qiao B, Zhang Q, Liu D, Wang H, Yin J, Wang R, He M, Cui M, Shang Z, Wang D, Zhu Z. A calcium-binding protein, rice annexin OsANN1, enhances heat stress tolerance by modulating the production of H2O2. JOURNAL OF EXPERIMENTAL BOTANY 2015; 66:5853-66. [PMID: 26085678 DOI: 10.1093/jxb/erv294] [Citation(s) in RCA: 92] [Impact Index Per Article: 10.2] [Reference Citation Analysis] [Abstract] [Key Words] [MESH Headings] [Track Full Text] [Subscribe] [Scholar Register] [Indexed: 05/18/2023]
Abstract
OsANN1 is a member of the annexin protein family in rice. The function of this protein and the mechanisms of its involvement in stress responses and stress tolerance are largely unknown. Here it is reported that OsANN1 confers abiotic stress tolerance by modulating antioxidant accumulation under abiotic stress. OsANN1-knockdown [RNA interference (RNAi)] plants were more sensitive to heat and drought stresses, whereas OsANN1-overexpression (OE) lines showed improved growth with higher expression of OsANN1 under abiotic stress. Overexpression of OsANN1 promoted SOD (superoxide dismutase) and CAT (catalase) activities, which regulate H2O2 content and redox homeostasis, suggesting the existence of a feedback mechanism between OsANN1 and H2O2 production under abiotic stress. Higher expression of OsANN1 can provide overall cellular protection against abiotic stress-induced damage, and a significant accumulation of OsANN1-green fluorescent protein (GFP) signals was found in the cytosol after heat shock treatment. OsANN1 also has calcium-binding and ATPase activities in vitro, indicating that OsANN1 has multiple functions in rice growth. Furthermore, yeast two-hybrid and bimolecular fluorescence complementation (BiFC) assays demonstrated that OsANN1 interacts with OsCDPK24. This cross-talk may provide additional layers of regulation in the abiotic stress response.
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Affiliation(s)
- Bei Qiao
- Hebei Key Laboratory of Molecular and Cellular Biology, Key Laboratory of Molecular and Cellular Biology of the Ministry of Education, College of Life Science, Hebei Normal University, Hebei Collaboration Innovation Center for Cell Signaling, Shijiazhuang, Hebei, 050024, China
| | - Qian Zhang
- Hebei Key Laboratory of Molecular and Cellular Biology, Key Laboratory of Molecular and Cellular Biology of the Ministry of Education, College of Life Science, Hebei Normal University, Hebei Collaboration Innovation Center for Cell Signaling, Shijiazhuang, Hebei, 050024, China
| | - Dongliang Liu
- Hebei Key Laboratory of Molecular and Cellular Biology, Key Laboratory of Molecular and Cellular Biology of the Ministry of Education, College of Life Science, Hebei Normal University, Hebei Collaboration Innovation Center for Cell Signaling, Shijiazhuang, Hebei, 050024, China
| | - Haiqi Wang
- Hebei Key Laboratory of Molecular and Cellular Biology, Key Laboratory of Molecular and Cellular Biology of the Ministry of Education, College of Life Science, Hebei Normal University, Hebei Collaboration Innovation Center for Cell Signaling, Shijiazhuang, Hebei, 050024, China
| | - Jingya Yin
- Hebei Key Laboratory of Molecular and Cellular Biology, Key Laboratory of Molecular and Cellular Biology of the Ministry of Education, College of Life Science, Hebei Normal University, Hebei Collaboration Innovation Center for Cell Signaling, Shijiazhuang, Hebei, 050024, China
| | - Rui Wang
- Hebei Key Laboratory of Molecular and Cellular Biology, Key Laboratory of Molecular and Cellular Biology of the Ministry of Education, College of Life Science, Hebei Normal University, Hebei Collaboration Innovation Center for Cell Signaling, Shijiazhuang, Hebei, 050024, China
| | - Mengli He
- Hebei Key Laboratory of Molecular and Cellular Biology, Key Laboratory of Molecular and Cellular Biology of the Ministry of Education, College of Life Science, Hebei Normal University, Hebei Collaboration Innovation Center for Cell Signaling, Shijiazhuang, Hebei, 050024, China
| | - Meng Cui
- Hebei Key Laboratory of Molecular and Cellular Biology, Key Laboratory of Molecular and Cellular Biology of the Ministry of Education, College of Life Science, Hebei Normal University, Hebei Collaboration Innovation Center for Cell Signaling, Shijiazhuang, Hebei, 050024, China
| | - Zhonglin Shang
- Hebei Key Laboratory of Molecular and Cellular Biology, Key Laboratory of Molecular and Cellular Biology of the Ministry of Education, College of Life Science, Hebei Normal University, Hebei Collaboration Innovation Center for Cell Signaling, Shijiazhuang, Hebei, 050024, China
| | - Dekai Wang
- The Institute of Crop and Nuclear Technology Utilization, Zhejiang Academy of Agricultural Sciences, Hangzhou, 310021, China
| | - Zhengge Zhu
- Hebei Key Laboratory of Molecular and Cellular Biology, Key Laboratory of Molecular and Cellular Biology of the Ministry of Education, College of Life Science, Hebei Normal University, Hebei Collaboration Innovation Center for Cell Signaling, Shijiazhuang, Hebei, 050024, China
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30
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Yu X, Pijut PM, Byrne S, Asp T, Bai G, Jiang Y. Candidate gene association mapping for winter survival and spring regrowth in perennial ryegrass. PLANT SCIENCE : AN INTERNATIONAL JOURNAL OF EXPERIMENTAL PLANT BIOLOGY 2015; 235:37-45. [PMID: 25900564 DOI: 10.1016/j.plantsci.2015.03.003] [Citation(s) in RCA: 8] [Impact Index Per Article: 0.9] [Reference Citation Analysis] [Abstract] [Key Words] [MESH Headings] [Track Full Text] [Subscribe] [Scholar Register] [Received: 12/02/2014] [Revised: 02/12/2015] [Accepted: 03/04/2015] [Indexed: 05/05/2023]
Abstract
Perennial ryegrass (Lolium perenne L.) is a widely cultivated cool-season grass species because of its high quality for forage and turf. Susceptibility to freezing damage limits its further use in temperate zones. The objective of this study was to identify candidate genes significantly associated with winter survival and spring regrowth in a global collection of 192 perennial ryegrass accessions. Significant differences in winter survival (WS), percentage of canopy green cover (CGC), chlorophyll index (Chl), and normalized difference vegetation index (NDVI) were found among accessions. After controlling population structure, LpLEA3 encoding a late embryogenesis abundant group 3 protein and LpCAT encoding a catalase were associated with CGC and Chl, while LpMnSOD encoding a magnesium superoxide dismutase and LpChl Cu-ZnSOD encoding a chlorophyll copper-zinc superoxide dismutase were associated with NDVI or Chl. Significant association was also discovered between C-repeat binding factor LpCBF1b and WS. Three sequence variations identified in LpCAT, LpMnSOD, and LpChl Cu-ZnSOD were synonymous substitutions, whereas one pair of adjacent single nucleotide polymorphisms (SNPs) in LpLEA3 and one SNP in LpCBF1b resulted in amino acid change. The results demonstrated that allelic variation in LpLEA3 and LpCBF1b was closely related to winter survival and spring regrowth in perennial ryegrass.
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Affiliation(s)
- Xiaoqing Yu
- Department of Agronomy, Iowa State University, Ames, IA 50011, USA
| | - Paula M Pijut
- USDA-Forest Service, Northern Research Station, Hardwood Tree Improvement and Regeneration Center, West Lafayette, IN 47907, USA
| | - Stephen Byrne
- Department of Molecular Biology and Genetics, Faculty of Science and Technology, Research Centre Flakkebjerg, Aarhus University, Forsøgsvej 1, Slagelse 4200, Denmark
| | - Torben Asp
- Department of Molecular Biology and Genetics, Faculty of Science and Technology, Research Centre Flakkebjerg, Aarhus University, Forsøgsvej 1, Slagelse 4200, Denmark
| | - Guihua Bai
- USDA-ARS Hard Winter Wheat Genetics Research Unit, Manhattan, KS 66506, USA
| | - Yiwei Jiang
- Department of Agronomy, Purdue University, West Lafayette, IN 47907-2054, USA.
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Sharma R, Nath AK. Antioxidant Levels and Activities of Reactive Oxygen-Scavenging Enzymes in Crab Apple Fruits (Malus baccata). ACTA ACUST UNITED AC 2015. [DOI: 10.1007/s40011-015-0529-6] [Citation(s) in RCA: 7] [Impact Index Per Article: 0.8] [Reference Citation Analysis] [Track Full Text] [Journal Information] [Subscribe] [Scholar Register] [Indexed: 11/29/2022]
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Fu G, Grbic V, Ma S, Tian L. Evaluation of somatic embryos of alfalfa for recombinant protein expression. PLANT CELL REPORTS 2015; 34:211-21. [PMID: 25413922 DOI: 10.1007/s00299-014-1700-x] [Citation(s) in RCA: 2] [Impact Index Per Article: 0.2] [Reference Citation Analysis] [Abstract] [MESH Headings] [Track Full Text] [Subscribe] [Scholar Register] [Received: 07/22/2014] [Accepted: 10/13/2014] [Indexed: 05/23/2023]
Abstract
Somatic embryos of alfalfa can accumulate higher levels of recombinant proteins comparing to vegetative organs. Somatic embryos may be explored as a new system for new protein production for plants. Plants have been explored via genetic engineering as an inexpensive system for recombinant protein production. However, protein expression levels in vegetative tissues have been low, which limits the commercial utilization of plant expression systems. Somatic embryos resemble zygotic embryos in many aspects and may accumulate higher levels of proteins as true seed. In this study, somatic embryo of alfalfa (Medicago sativa L.) was investigated for the expression of recombinant proteins. Three heterologous genes, including the standard scientific reporter uid that codes for β-glucuronidase and two genes of interest: ctb coding for cholera toxin B subunit (CTB), and hIL-13 coding for human interleukin 13, were independently introduced into alfalfa via Agrobacterium-mediated transformation. Somatic embryos were subsequently induced from transgenic plants carrying these genes. Somatic embryos accumulated approximately twofold more recombinant proteins than vegetative organs including roots, stems, and leaves. The recombinant proteins of CTB and hIL-13 accumulated up to 0.15 and 0.18 % of total soluble protein in alfalfa somatic embryos, respectively. The recombinant proteins expressed in somatic embryos also exhibited biological activities. As somatic embryos can be induced in many plant species and their production can be scaled up via different avenues, somatic embryos may be developed as an efficient expression system for recombinant protein production.
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Affiliation(s)
- Guohua Fu
- Department of Biology, University of Western Ontario, London, ON, Canada
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Tamirisa S, Vudem DR, Khareedu VR. Overexpression of pigeonpea stress-induced cold and drought regulatory gene (CcCDR) confers drought, salt, and cold tolerance in Arabidopsis. JOURNAL OF EXPERIMENTAL BOTANY 2014; 65:4769-81. [PMID: 24868035 PMCID: PMC4144763 DOI: 10.1093/jxb/eru224] [Citation(s) in RCA: 21] [Impact Index Per Article: 2.1] [Reference Citation Analysis] [Abstract] [Key Words] [MESH Headings] [Track Full Text] [Subscribe] [Scholar Register] [Indexed: 05/19/2023]
Abstract
A potent cold and drought regulatory protein-encoding gene (CcCDR) was isolated from the subtractive cDNA library of pigeonpea plants subjected to drought stress. CcCDR was induced by different abiotic stress conditions in pigeonpea. Overexpression of CcCDR in Arabidopsis thaliana imparted enhanced tolerance against major abiotic stresses, namely drought, salinity, and low temperature, as evidenced by increased biomass, root length, and chlorophyll content. Transgenic plants also showed increased levels of antioxidant enzymes, proline, and reducing sugars under stress conditions. Furthermore, CcCDR-transgenic plants showed enhanced relative water content, osmotic potential, and cell membrane stability, as well as hypersensitivity to abscisic acid (ABA) as compared with control plants. Localization studies confirmed that CcCDR could enter the nucleus, as revealed by intense fluorescence, indicating its possible interaction with various nuclear proteins. Microarray analysis revealed that 1780 genes were up-regulated in CcCDR-transgenics compared with wild-type plants. Real-time PCR analysis on selected stress-responsive genes, involved in ABA-dependent and -independent signalling networks, revealed higher expression levels in transgenic plants, suggesting that CcCDR acts upstream of these genes. The overall results demonstrate the explicit role of CcCDR in conferring multiple abiotic stress tolerance at the whole-plant level. The multifunctional CcCDR seems promising as a prime candidate gene for enhancing abiotic stress tolerance in diverse plants.
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Affiliation(s)
- Srinath Tamirisa
- Centre for Plant Molecular Biology, Osmania University, Hyderabad, 500 007, India
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34
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Diaz-Vivancos P, Faize M, Barba-Espin G, Faize L, Petri C, Hernández JA, Burgos L. Ectopic expression of cytosolic superoxide dismutase and ascorbate peroxidase leads to salt stress tolerance in transgenic plums. PLANT BIOTECHNOLOGY JOURNAL 2013; 11:976-85. [PMID: 23750614 DOI: 10.1111/pbi.12090] [Citation(s) in RCA: 72] [Impact Index Per Article: 6.5] [Reference Citation Analysis] [Abstract] [Key Words] [MESH Headings] [Track Full Text] [Subscribe] [Scholar Register] [Received: 03/20/2013] [Revised: 04/29/2013] [Accepted: 05/14/2013] [Indexed: 05/23/2023]
Abstract
To fortify the antioxidant capacity of plum plants, genes encoding cytosolic antioxidants ascorbate peroxidase (cytapx) and Cu/Zn-superoxide dismutase (cytsod) were genetically engineered in these plants. Transgenic plum plants expressing the cytsod and/or cytapx genes in cytosol have been generated under the control of the CaMV35S promoter. High levels of cytsod and cytapx gene transcripts suggested that the transgenes were constitutively and functionally expressed. We examined the potential functions of cytSOD and cytAPX in in vitro plum plants against salt stress (100 mm NaCl). Several transgenic plantlets expressing cytsod and/or cytapx showed an enhanced tolerance to salt stress, mainly lines C5-5 and J8-1 (expressing several copies of sod and apx, respectively). Transformation as well as NaCl treatments influenced the antioxidative metabolism of plum plantlets, including enzymatic and nonenzymatic antioxidants. Transgenic plantlets exhibited higher contents of nonenzymatic antioxidants glutathione and ascorbate than nontransformed control, which correlated with lower accumulation of hydrogen peroxide. Overall, our results suggest that transformation of plum plants with genes encoding antioxidant enzymes enhances the tolerance to salinity.
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Affiliation(s)
- Pedro Diaz-Vivancos
- Department of Plant Breeding, Group of Fruit Tree Biotechnology, CEBAS-CSIC, Murcia, Spain
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Superoxide-dismutase deficient mutants in common beans (Phaseolus vulgaris L.): genetic control, differential expressions of isozymes, and sensitivity to arsenic. BIOMED RESEARCH INTERNATIONAL 2013; 2013:782450. [PMID: 24078924 PMCID: PMC3771264 DOI: 10.1155/2013/782450] [Citation(s) in RCA: 12] [Impact Index Per Article: 1.1] [Reference Citation Analysis] [Abstract] [Track Full Text] [Download PDF] [Figures] [Subscribe] [Scholar Register] [Received: 04/20/2013] [Accepted: 07/28/2013] [Indexed: 11/17/2022]
Abstract
Two common bean (Phaseolus vulgaris L.) mutants, sodPv 1 and sodPv 2, exhibiting foliar superoxide dismutase (SOD) activity of only 25% and 40% of their mother control (MC) cv. VL 63 were isolated in EMS-mutagenized (0.15%, 8 h) M2 progeny. Native-PAGE analysis revealed occurrence of Mn SOD, Fe SOD, Cu/Zn SOD I and Cu/Zn SOD II isozymes in MC, while Fe SOD, and Mn SOD were not formed in sodPv 1 and sodPv 2 leaves, respectively. In-gel activity of individual isozymes differed significantly among the parents. SOD deficiency is inherited as recessive mutations, controlled by two different nonallelic loci. Gene expressions using qRT PCR confirmed higher expressions of Cu/Zn SOD transcripts in both mutants and the absence of Fe SOD in sodPv 1 and Mn SOD in sodPv 2. In 50 μM arsenic, Cu/Zn SODs genes were further upregulated but other isoforms downregulated in the two mutants, maintaining SOD activity in its control level. In an F2 double mutants of sodPv 1 × sodPv 2, no Fe SOD, and Mn SOD expressions were detectable, while both Cu/Zn SODs are down-regulated and arsenic-induced leaf necrosis appeared. In contrast to both mutants, ROS-imaging study revealed overaccumulation of both superoxides and H2O2 in leaves of double mutant.
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Xing Y, Cao Q, Zhang Q, Qin L, Jia W, Zhang J. MKK5 Regulates High Light-Induced Gene Expression of Cu/Zn Superoxide Dismutase 1 and 2 in Arabidopsis. ACTA ACUST UNITED AC 2013; 54:1217-27. [DOI: 10.1093/pcp/pct072] [Citation(s) in RCA: 32] [Impact Index Per Article: 2.9] [Reference Citation Analysis] [Track Full Text] [Journal Information] [Subscribe] [Scholar Register] [Indexed: 12/11/2022]
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Xu J, Duan X, Yang J, Beeching JR, Zhang P. Enhanced reactive oxygen species scavenging by overproduction of superoxide dismutase and catalase delays postharvest physiological deterioration of cassava storage roots. PLANT PHYSIOLOGY 2013; 161:1517-28. [PMID: 23344905 PMCID: PMC3585613 DOI: 10.1104/pp.112.212803] [Citation(s) in RCA: 128] [Impact Index Per Article: 11.6] [Reference Citation Analysis] [Abstract] [MESH Headings] [Track Full Text] [Subscribe] [Scholar Register] [Received: 12/13/2012] [Accepted: 01/22/2013] [Indexed: 05/18/2023]
Abstract
Postharvest physiological deterioration (PPD) of cassava (Manihot esculenta) storage roots is the result of a rapid oxidative burst, which leads to discoloration of the vascular tissues due to the oxidation of phenolic compounds. In this study, coexpression of the reactive oxygen species (ROS)-scavenging enzymes copper/zinc superoxide dismutase (MeCu/ZnSOD) and catalase (MeCAT1) in transgenic cassava was used to explore the intrinsic relationship between ROS scavenging and PPD occurrence. Transgenic cassava plants integrated with the expression cassette p54::MeCu/ZnSOD-35S::MeCAT1 were confirmed by Southern-blot analysis. The expression of MeCu/ZnSOD and MeCAT1 was verified by quantitative reverse transcription-polymerase chain reaction and enzymatic activity analysis both in the leaves and storage roots. Under exposure to the ROS-generating reagent methyl viologen or to hydrogen peroxide (H2O2), the transgenic plants showed higher enzymatic activities of SOD and CAT than the wild-type plants. Levels of malondialdehyde, chlorophyll degradation, lipid peroxidation, and H2O2 accumulation were dramatically reduced in the transgenic lines compared with the wild type. After harvest, the storage roots of transgenic cassava lines show a delay in their PPD response of at least 10 d, accompanied by less mitochondrial oxidation and H2O2 accumulation, compared with those of the wild type. We hypothesize that this is due to the combined ectopic expression of Cu/ZnSOD and CAT leading to an improved synergistic ROS-scavenging capacity of the roots. Our study not only sheds light on the mechanism of the PPD process but also develops an effective approach for delaying the occurrence of PPD in cassava.
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Affiliation(s)
| | | | - Jun Yang
- National Key Laboratory of Plant Molecular Genetics and National Center for Plant Gene Research (Shanghai), Institute of Plant Physiology and Ecology, Shanghai Institutes for Biological Sciences, Chinese Academy of Sciences, Shanghai 200032, China (J.X., X.D., P.Z.); Shanghai Chenshan Plant Science Research Center, Chinese Academy of Sciences, Shanghai Chenshan Botanical Garden, Shanghai 201602, China (J.Y., P.Z.); and Department of Biology and Biochemistry, University of Bath, Bath BA2 7AY, United Kingdom (J.R.B.)
| | - John R. Beeching
- National Key Laboratory of Plant Molecular Genetics and National Center for Plant Gene Research (Shanghai), Institute of Plant Physiology and Ecology, Shanghai Institutes for Biological Sciences, Chinese Academy of Sciences, Shanghai 200032, China (J.X., X.D., P.Z.); Shanghai Chenshan Plant Science Research Center, Chinese Academy of Sciences, Shanghai Chenshan Botanical Garden, Shanghai 201602, China (J.Y., P.Z.); and Department of Biology and Biochemistry, University of Bath, Bath BA2 7AY, United Kingdom (J.R.B.)
| | - Peng Zhang
- National Key Laboratory of Plant Molecular Genetics and National Center for Plant Gene Research (Shanghai), Institute of Plant Physiology and Ecology, Shanghai Institutes for Biological Sciences, Chinese Academy of Sciences, Shanghai 200032, China (J.X., X.D., P.Z.); Shanghai Chenshan Plant Science Research Center, Chinese Academy of Sciences, Shanghai Chenshan Botanical Garden, Shanghai 201602, China (J.Y., P.Z.); and Department of Biology and Biochemistry, University of Bath, Bath BA2 7AY, United Kingdom (J.R.B.)
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38
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Cloning and expression analysis of Cu/ZnSOD gene from Galega orientalis L. YI CHUAN = HEREDITAS 2012; 34:95-101. [DOI: 10.3724/sp.j.1005.2012.00095] [Citation(s) in RCA: 3] [Impact Index Per Article: 0.3] [Reference Citation Analysis] [Track Full Text] [Subscribe] [Scholar Register] [Indexed: 11/25/2022]
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39
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PAN ZY, DENG XX. Proteomic Comparison Between Leaves from a Red-Flesh Mutant and Its Wild-Type in Sweet Orange. ACTA ACUST UNITED AC 2011. [DOI: 10.1016/s1671-2927(11)60111-9] [Citation(s) in RCA: 1] [Impact Index Per Article: 0.1] [Reference Citation Analysis] [Track Full Text] [Journal Information] [Subscribe] [Scholar Register] [Indexed: 10/17/2022]
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40
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Poage M, Le Martret B, Jansen MAK, Nugent GD, Dix PJ. Modification of reactive oxygen species scavenging capacity of chloroplasts through plastid transformation. PLANT MOLECULAR BIOLOGY 2011; 76:371-84. [PMID: 21573980 DOI: 10.1007/s11103-011-9784-y] [Citation(s) in RCA: 10] [Impact Index Per Article: 0.8] [Reference Citation Analysis] [Abstract] [MESH Headings] [Track Full Text] [Subscribe] [Scholar Register] [Received: 07/02/2010] [Accepted: 05/02/2011] [Indexed: 05/07/2023]
Abstract
Reactive oxygen species (ROS), including superoxide anions, hydrogen peroxide and hydroxyl radicals are generated through normal biochemical processes, but their production is increased by abiotic stresses. The prospects for enhancing ROS scavenging, and hence stress tolerance, by direct gene expression in a vulnerable cell compartment, the chloroplast, have been explored in tobacco. Several plastid transformants were generated which contained either a Nicotiana mitochondrial superoxide dismutase (MnSOD) or an Escherichia coli glutathione reductase (gor) gene. MnSOD lines had a three-fold increase in MnSOD activity, but interestingly a five to nine-fold increase in total chloroplast SOD activity. Gor transgenic lines had up to 6 times higher GR activity and up to 8 times total glutathione levels compared to wild type tobacco. Photosynthetic capacity of transplastomic plants, as measured by chlorophyll content and variable fluorescence of PSII was equivalent to non-transformed plants. The response of these transplastomic lines to several applied stresses was examined. In a number of cases improved stress tolerance was observed. Examples include enhanced methyl viologen (Paraquat)-induced oxidative stress tolerance in Mn-superoxidase dismutase over-expressing plants, improved heavy metal tolerance in glutathione reductase expressing lines, and improved tolerance to UV-B radiation in both sets of plants.
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Affiliation(s)
- Miranda Poage
- Department of Biology, Midland College, Midland, TX 79705, USA
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41
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Faize M, Burgos L, Faize L, Piqueras A, Nicolas E, Barba-Espin G, Clemente-Moreno MJ, Alcobendas R, Artlip T, Hernandez JA. Involvement of cytosolic ascorbate peroxidase and Cu/Zn-superoxide dismutase for improved tolerance against drought stress. JOURNAL OF EXPERIMENTAL BOTANY 2011; 62:2599-613. [PMID: 21239380 DOI: 10.1093/jxb/erq432] [Citation(s) in RCA: 111] [Impact Index Per Article: 8.5] [Reference Citation Analysis] [Abstract] [MESH Headings] [Track Full Text] [Subscribe] [Scholar Register] [Indexed: 05/18/2023]
Abstract
In order to understand the role of cytosolic antioxidant enzymes in drought stress protection, transgenic tobacco (Nicotiana tabacum cv. Xanthi) plants overexpressing cytosolic Cu/Zn-superoxide dismutase (cytsod) (EC 1.15.1.1) or ascorbate peroxidase (cytapx) (EC 1.11.1.1) alone, or in combination, were produced and tested for tolerance against mild water stress. The results showed that the simultaneous overexpression of Cu/Znsod and apx or at least apx in the cytosol of transgenic tobacco plants alleviates, to some extent, the damage produced by water stress conditions. This was correlated with higher water use efficiency and better photosynthetic rates. In general, oxidative stress parameters, such as lipid peroxidation, electrolyte leakage, and H(2)O(2) levels, were higher in non-transformed plants than in transgenic lines, suggesting that, at the least, overexpression of cytapx protects tobacco membranes from water stress. In these conditions, the activity of other antioxidant enzymes was induced in transgenic lines at the subcellular level. Moreover, an increase in the activity of some antioxidant enzymes was also observed in the chloroplast of transgenic plants overexpressing cytsod and/or cytapx. These results suggest the positive influence of cytosolic antioxidant metabolism on the chloroplast and underline the complexity of the regulation network of plant antioxidant defences during drought stress.
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Affiliation(s)
- M Faize
- Laboratory of Plant Biotechnology, Ecology and Ecosystem Valorisation, Faculty of Sciences, University Chouaib Doukkali, 24000 El Jadida, Morocco
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42
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Subtle proteome differences identified between post-dormant vegetative and floral peach buds. J Proteomics 2011; 74:607-19. [DOI: 10.1016/j.jprot.2011.01.018] [Citation(s) in RCA: 26] [Impact Index Per Article: 2.0] [Reference Citation Analysis] [Track Full Text] [Journal Information] [Subscribe] [Scholar Register] [Received: 11/30/2010] [Revised: 01/20/2011] [Accepted: 01/28/2011] [Indexed: 01/09/2023]
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43
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Kumar S. Biotechnological advancements in alfalfa improvement. J Appl Genet 2011; 52:111-24. [DOI: 10.1007/s13353-011-0028-2] [Citation(s) in RCA: 31] [Impact Index Per Article: 2.4] [Reference Citation Analysis] [Track Full Text] [Journal Information] [Subscribe] [Scholar Register] [Received: 11/12/2010] [Revised: 01/08/2011] [Accepted: 01/11/2011] [Indexed: 11/28/2022]
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44
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Alam I, Kim KH, Sharmin SA, Kim YG, Lee BH. Advances in the molecular breeding of forage crops for abiotic stress tolerance. ACTA ACUST UNITED AC 2010. [DOI: 10.5010/jpb.2010.37.4.425] [Citation(s) in RCA: 4] [Impact Index Per Article: 0.3] [Reference Citation Analysis] [Track Full Text] [Journal Information] [Subscribe] [Scholar Register] [Indexed: 11/16/2022]
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45
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Qu CP, Xu ZR, Liu GJ, Liu C, Li Y, Wei ZG, Liu GF. Differential expression of copper-zinc superoxide dismutase gene of Polygonum sibiricum leaves, stems and underground stems, subjected to high-salt stress. Int J Mol Sci 2010; 11:5234-45. [PMID: 21614204 PMCID: PMC3100833 DOI: 10.3390/ijms11125234] [Citation(s) in RCA: 15] [Impact Index Per Article: 1.1] [Reference Citation Analysis] [Abstract] [Key Words] [MESH Headings] [Track Full Text] [Download PDF] [Figures] [Journal Information] [Subscribe] [Scholar Register] [Received: 09/30/2010] [Revised: 11/20/2010] [Accepted: 11/29/2010] [Indexed: 11/30/2022] Open
Abstract
In aerobic organisms, protection against oxidative damage involves the combined action of highly specialized antioxidant enzymes, such as copper-zinc superoxide dismutase. In this work, a cDNA clone which encodes a copper-zinc superoxide dismutase gene, named PS-CuZnSOD, has been identified from P. sibiricum Laxm. by the rapid amplification of cDNA ends method (RACE). Analysis of the nucleotide sequence reveals that the PS-CuZnSOD gene cDNA clone consists of 669 bp, containing 87 bp in the 5′ untranslated region; 459 bp in the open reading frame (ORF) encoding 152 amino acids; and 123 bp in 3′ untranslated region. The gene accession nucleotide sequence number in GenBank is GQ472846. Sequence analysis indicates that the protein, like most plant superoxide dismutases (SOD), includes two conserved ecCuZnSOD signatures that are from the amino acids 43 to 51, and from the amino acids 137 to 148, and it has a signal peptide extension in the front of the N-terminus (1–16 aa). Expression analysis by real-time quantitative PCR reveals that the PS-CuZnSOD gene is expressed in leaves, stems and underground stems. PS-CuZnSOD gene expression can be induced by 3% NaHCO3. The different mRNA levels’ expression of PS-CuZnSOD show the gene’s different expression modes in leaves, stems and underground stems under the salinity-alkalinity stress.
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Affiliation(s)
- Chun-Pu Qu
- The Laboratory of Forest Genetics and Breeding and Biotechnology of Ministry of Education, Northeast Forestry University, 26 Hexing Road, Harbin 150040, China; E-Mails: (C.-P.Q.); (C.L.); (Y.L.); (Z.-G.W.); (G.-F.L.)
| | - Zhi-Ru Xu
- Life Science College, Northeast Forestry University, Harbin 150040, China; E-Mail:
| | - Guan-Jun Liu
- The Laboratory of Forest Genetics and Breeding and Biotechnology of Ministry of Education, Northeast Forestry University, 26 Hexing Road, Harbin 150040, China; E-Mails: (C.-P.Q.); (C.L.); (Y.L.); (Z.-G.W.); (G.-F.L.)
- Author to whom correspondence should be addressed; E-Mail: ; Tel.: +86-451-82190607-13; Fax: +86-451-82190607-11
| | - Chun Liu
- The Laboratory of Forest Genetics and Breeding and Biotechnology of Ministry of Education, Northeast Forestry University, 26 Hexing Road, Harbin 150040, China; E-Mails: (C.-P.Q.); (C.L.); (Y.L.); (Z.-G.W.); (G.-F.L.)
| | - Yang Li
- The Laboratory of Forest Genetics and Breeding and Biotechnology of Ministry of Education, Northeast Forestry University, 26 Hexing Road, Harbin 150040, China; E-Mails: (C.-P.Q.); (C.L.); (Y.L.); (Z.-G.W.); (G.-F.L.)
| | - Zhi-Gang Wei
- The Laboratory of Forest Genetics and Breeding and Biotechnology of Ministry of Education, Northeast Forestry University, 26 Hexing Road, Harbin 150040, China; E-Mails: (C.-P.Q.); (C.L.); (Y.L.); (Z.-G.W.); (G.-F.L.)
| | - Gui-Feng Liu
- The Laboratory of Forest Genetics and Breeding and Biotechnology of Ministry of Education, Northeast Forestry University, 26 Hexing Road, Harbin 150040, China; E-Mails: (C.-P.Q.); (C.L.); (Y.L.); (Z.-G.W.); (G.-F.L.)
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46
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Coba de la Peña T, Redondo FJ, Manrique E, Lucas MM, Pueyo JJ. Nitrogen fixation persists under conditions of salt stress in transgenic Medicago truncatula plants expressing a cyanobacterial flavodoxin. PLANT BIOTECHNOLOGY JOURNAL 2010; 8:954-65. [PMID: 20353403 DOI: 10.1111/j.1467-7652.2010.00519.x] [Citation(s) in RCA: 33] [Impact Index Per Article: 2.4] [Reference Citation Analysis] [Abstract] [MESH Headings] [Track Full Text] [Subscribe] [Scholar Register] [Indexed: 05/18/2023]
Abstract
Several recent studies have demonstrated that the expression of a cyanobacterial flavodoxin in plants can provide tolerance to a wide range of environmental stresses. Indeed, this strategy has been proposed as a potentially powerful biotechnological tool to generate multiple-tolerant crops. To determine whether flavodoxin expression specifically increased tolerance to salt stress and whether it might also preserve legume nitrogen fixation under saline conditions, the flavodoxin gene was introduced into the model legume Medicago truncatula. Expression of flavodoxin did not confer saline tolerance to the whole plant, although the sensitive nitrogen-fixing activity was maintained under salt stress in flavodoxin-expressing plants. Our results indicate that flavodoxin induced small but significant changes in the enzymatic activities involved in the nodule redox balance that might be responsible for the positive effect on nitrogen fixation. Expression of flavodoxin can be regarded as a potential tool to improve legume symbiotic performance under salt stress, and possibly other environmental stresses.
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Affiliation(s)
- Teodoro Coba de la Peña
- Department of Plant Physiology and Ecology, Instituto de Recursos Naturales, Centro de Ciencias Medioambientales, CSIC, Serrano, Madrid, Spain
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Pilon M, Ravet K, Tapken W. The biogenesis and physiological function of chloroplast superoxide dismutases. BIOCHIMICA ET BIOPHYSICA ACTA-BIOENERGETICS 2010; 1807:989-98. [PMID: 21078292 DOI: 10.1016/j.bbabio.2010.11.002] [Citation(s) in RCA: 107] [Impact Index Per Article: 7.6] [Reference Citation Analysis] [Abstract] [Track Full Text] [Subscribe] [Scholar Register] [Received: 09/02/2010] [Revised: 11/02/2010] [Accepted: 11/04/2010] [Indexed: 11/26/2022]
Abstract
Iron-superoxide dismutase (FeSOD) and copper/zinc-superoxide dismutase (Cu/ZnSOD) are evolutionarily conserved proteins in higher plant chloroplasts. These enzymes are responsible for the efficient removal of the superoxide formed during photosynthetic electron transport and function in reactive oxygen species metabolism. The availability of copper is a major determinant of Cu/ZnSOD and FeSOD expression. Analysis of the phenotypes of plants that over-express superoxide dismutases in chloroplasts has given support for the proposed roles of these enzymes in reactive oxygen species scavenging. However, over-production of chloroplast superoxide dismutase gives only limited protection to environmental stress and does not result in greatly improved whole plant performance. Surprisingly, plant lines that lack the most abundant Cu/ZnSOD or FeSOD activities perform as well as the wild-type under most conditions tested, indicating that these superoxide dismutases are not limiting to photoprotection or the prevention of oxidative damage. In contrast, a strong defect in chloroplast gene expression and development was seen in plants that lack the two minor FeSOD isoforms, which are expressed predominantly in seedlings and that associate closely with the chloroplast genome. These findings implicate reactive oxygen species metabolism in signaling and emphasize the critical role of sub-cellular superoxide dismutase location. This article is part of a Special Issue entitled: Regulation of Electron Transport in Chloroplasts.
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Affiliation(s)
- Marinus Pilon
- Biology Department and Program in Molecular Plant Biology, Colorado State University, Fort Collins, CO 80523-1878, USA.
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48
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Bhardwaj PK, Ahuja PS, Kumar S. Characterization of gene expression of QM from Caragana jubata, a plant species that grows under extreme cold. Mol Biol Rep 2010; 37:1003-10. [PMID: 19757181 DOI: 10.1007/s11033-009-9791-0] [Citation(s) in RCA: 17] [Impact Index Per Article: 1.2] [Reference Citation Analysis] [Abstract] [Track Full Text] [Journal Information] [Subscribe] [Scholar Register] [Received: 10/24/2008] [Accepted: 09/02/2009] [Indexed: 10/20/2022]
Abstract
Caragana [Caragana jubata (Pall.) Poir] is a temperate plant that thrives well under extremes of cold in high altitude of Himalaya and hence the plant is expected to be a source of genes that might play an important role in tolerance to low temperature (LT). In order to identify LT inducible gene(s), differential display of mRNA (DD) was performed using the apical buds growing under snow as well as growing in the near vicinity without snow, and a LT inducible QM gene (CjQM) homologue was identified. Realizing the importance of QM gene (which encodes human Wilms' tumor suppressor QM protein) in aggregation of 40 and 60S ribosomal subunit and that not much has been reported on this gene in plant systems in relation to its relationship with LT, full length cDNA of CjQM was cloned through rapid amplification of cDNA ends. The gene (977 bp), encoded by small gene family, had an open reading frame of 651 bp and was found to be intronless. The gene exhibited up-regulation within 20 min of exposure to LT and abscisic acid (ABA), but no significant change in gene expression was observed in response to drought stress (DS), salicylic acid (SA) and methyl jasmonate (MJ) application. Up-regulation of CjQM was obtained in the tissues growing in situ under snow. Non-responsiveness of CjQM towards DS, SA and MJ, but up-regulation in response to LT and ABA suggested a specific regulation of the gene in Caragana under varied cues.
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Affiliation(s)
- Pardeep Kumar Bhardwaj
- Biotechnology Division, Institute of Himalayan Bioresource, Technology, Council of Scientific and Industrial Research, P.O. Box 6, Palampur, Himachal Pradesh 176061, India
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Zurbriggen MD, Hajirezaei MR, Carrillo N. Engineering the future. Development of transgenic plants with enhanced tolerance to adverse environments. Biotechnol Genet Eng Rev 2010; 27:33-56. [PMID: 21415892 DOI: 10.1080/02648725.2010.10648144] [Citation(s) in RCA: 14] [Impact Index Per Article: 1.0] [Reference Citation Analysis] [Abstract] [MESH Headings] [Track Full Text] [Journal Information] [Subscribe] [Scholar Register] [Indexed: 10/27/2022]
Abstract
Environmental stresses - especially drought and salinity - and iron limitation are the primary causes of crop yield losses. Therefore, improvement of plant stress tolerance has paramount relevance for agriculture, and vigorous efforts are underway to design stress-tolerant crops. Three aspects of this ongoing research are reviewed here. First, attempts have been made to strengthen endogenous plant defences, which are characterised by intertwined, hierarchical gene networks involved in stress perception, signalling, regulation and expression of effector proteins, enzymes and metabolites. The multigenic nature of this response requires detailed knowledge of the many actors and interactions involved in order to identify proper intervention points, followed by significant engineering of the prospective genes to prevent undesired side-effects. A second important aspect refers to the effect of concurrent stresses as plants normally meet in the field (e.g., heat and drought). Recent findings indicate that plant responses to combined environmental hardships are somehow unique and cannot be predicted from the addition of the individual stresses, underscoring the importance of programming research within this conceptual framework. Finally, the photosynthetic microorganisms from which plants evolved (i.e., algae and cyanobacteria) deploy a totally different strategy to acquire stress tolerance, based on the substitution of stress-vulnerable targets by resistant isofunctional proteins that could take over the lost functions under adverse conditions. Reintroduction of these ancient traits in model and crop plants has resulted in increased tolerance to environmental hardships and iron starvation, opening a new field of opportunities to increase the endurance of crops growing under suboptimal conditions.
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Affiliation(s)
- Matias D Zurbriggen
- Instituto de Biología Molecular y Celular de Rosario (IBR-CONICET), Universidad Nacional de Rosario, Rosario, Argentina
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Im YJ, Ji M, Lee A, Killens R, Grunden AM, Boss WF. Expression of Pyrococcus furiosus superoxide reductase in Arabidopsis enhances heat tolerance. PLANT PHYSIOLOGY 2009; 151:893-904. [PMID: 19684226 PMCID: PMC2754621 DOI: 10.1104/pp.109.145409] [Citation(s) in RCA: 21] [Impact Index Per Article: 1.4] [Reference Citation Analysis] [Abstract] [MESH Headings] [Track Full Text] [Subscribe] [Scholar Register] [Received: 07/27/2009] [Accepted: 08/07/2009] [Indexed: 05/21/2023]
Abstract
Plants produce reactive oxygen species (ROS) in response to environmental stresses sending signaling cues, which, if uncontrolled, result in cell death. Like other aerobic organisms, plants have ROS-scavenging enzymes, such as superoxide dismutase (SOD), which removes superoxide anion radical (O(2)(-)) and prevents the production and buildup of toxic free radicals. However, increasing the expression of cytosolic SODs is complex, and increasing their production in vivo has proven to be challenging. To avoid problems with endogenous regulation of gene expression, we expressed a gene from the archaeal hyperthermophile Pyrococcus furiosus that reduces O(2)(-). P. furiosus uses superoxide reductase (SOR) rather than SOD to remove superoxide. SOR is a thermostable enzyme that reduces O(2)(-) in a one-electron reduction without producing oxygen. We show that P. furiosus SOR can be produced as a functional enzyme in planta and that plants producing SOR have enhanced tolerance to heat, light, and chemically induced ROS. Stress tolerance in the SOR-producing plants correlates positively with a delayed increase in ROS-sensitive transcripts and a decrease in ascorbate peroxidase activity. The SOR plants provide a good model system to study the impact of cytosolic ROS on downstream signaling in plant growth and development. Furthermore, this work demonstrates that this synthetic approach for reducing cytosolic ROS holds promise as a means for improving stress tolerance in crop plants.
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Affiliation(s)
- Yang Ju Im
- Department of Plant Biology, North Carolina State University, Raleigh, North Carolina 27695, USA
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