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Zhang H, Zheng J, Su H, Xia K, Jian S, Zhang M. Molecular Cloning and Functional Characterization of the Dehydrin ( IpDHN) Gene From Ipomoea pes-caprae. FRONTIERS IN PLANT SCIENCE 2018; 9:1454. [PMID: 30364314 PMCID: PMC6193111 DOI: 10.3389/fpls.2018.01454] [Citation(s) in RCA: 7] [Impact Index Per Article: 1.2] [Reference Citation Analysis] [Abstract] [Key Words] [Track Full Text] [Subscribe] [Scholar Register] [Received: 06/06/2018] [Accepted: 09/12/2018] [Indexed: 05/02/2023]
Abstract
Dehydrin (DHN) genes can be rapidly induced to offset water deficit stresses in plants. Here, we reported on a dehydrin gene (IpDHN) related to salt tolerance isolated from Ipomoea pes-caprae L. (Convolvulaceae). The IpDHN protein shares a relatively high homology with Arabidopsis dehydrin ERD14 (At1g76180). IpDHN was shown to have a cytoplasmic localization pattern. Quantitative RT-PCR analyses indicated that IpDHN was differentially expressed in most organs of I. pes-caprae plants, and its expression level increased after salt, osmotic stress, oxidative stress, cold stress and ABA treatments. Analysis of the 974-bp promoter of IpDHN identified distinct cis-acting regulatory elements, including an MYB binding site (MBS), ABRE (ABA responding)-elements, Skn-1 motif, and TC-rich repeats. The induced expression of IpDHN in Escherichia coli indicated that IpDHN might be involved in salt, drought, osmotic, and oxidative stresses. We also generated transgenic Arabidopsis lines that over-expressed IpDHN. The transgenic Arabidopsis plants showed a significant enhancement in tolerance to salt/drought stresses, as well as less accumulation of hydrogen peroxide (H2O2) and the superoxide radical (O2 -), accompanied by increasing activity of the antioxidant enzyme system in vivo. Under osmotic stresses, the overexpression of IpDHN in Arabidopsis can elevate the expression of ROS-related and stress-responsive genes and can improve the ROS-scavenging ability. Our results indicated that IpDHN is involved in cellular responses to salt and drought through a series of pleiotropic effects that are likely involved in ROS scavenging and therefore influence the physiological processes of microorganisms and plants exposed to many abiotic stresses.
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Affiliation(s)
- Hui Zhang
- Key Laboratory of South China Agricultural Plant Molecular Analysis and Genetic Improvement, South China Botanical Garden, Chinese Academy of Sciences, Guangzhou, China
- College of Life Sciences, University of Chinese Academy of Sciences, Beijing, China
| | - Jiexuan Zheng
- Key Laboratory of South China Agricultural Plant Molecular Analysis and Genetic Improvement, South China Botanical Garden, Chinese Academy of Sciences, Guangzhou, China
- College of Life Sciences, University of Chinese Academy of Sciences, Beijing, China
| | - Huaxiang Su
- Key Laboratory of South China Agricultural Plant Molecular Analysis and Genetic Improvement, South China Botanical Garden, Chinese Academy of Sciences, Guangzhou, China
- College of Life Sciences, University of Chinese Academy of Sciences, Beijing, China
| | - Kuaifei Xia
- Key Laboratory of South China Agricultural Plant Molecular Analysis and Genetic Improvement, South China Botanical Garden, Chinese Academy of Sciences, Guangzhou, China
- Key Laboratory of Applied Botany, South China Botanical Garden, Chinese Academy of Sciences, Guangzhou, China
| | - Shuguang Jian
- Key Laboratory of Applied Botany, South China Botanical Garden, Chinese Academy of Sciences, Guangzhou, China
| | - Mei Zhang
- Key Laboratory of South China Agricultural Plant Molecular Analysis and Genetic Improvement, South China Botanical Garden, Chinese Academy of Sciences, Guangzhou, China
- Key Laboratory of Applied Botany, South China Botanical Garden, Chinese Academy of Sciences, Guangzhou, China
- *Correspondence: Mei Zhang,
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152
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Pereira-Santana A, Alvarado-Robledo EJ, Zamora-Briseño JA, Ayala-Sumuano JT, Gonzalez-Mendoza VM, Espadas-Gil F, Alcaraz LD, Castaño E, Keb-Llanes MA, Sanchez-Teyer F, Rodriguez-Zapata LC. Transcriptional profiling of sugarcane leaves and roots under progressive osmotic stress reveals a regulated coordination of gene expression in a spatiotemporal manner. PLoS One 2017; 12:e0189271. [PMID: 29228055 PMCID: PMC5724895 DOI: 10.1371/journal.pone.0189271] [Citation(s) in RCA: 17] [Impact Index Per Article: 2.4] [Reference Citation Analysis] [Abstract] [MESH Headings] [Grants] [Track Full Text] [Download PDF] [Figures] [Journal Information] [Subscribe] [Scholar Register] [Received: 08/03/2017] [Accepted: 11/22/2017] [Indexed: 11/24/2022] Open
Abstract
Sugarcane is one of the most important crops worldwide and is a key plant for the global production of sucrose. Sugarcane cultivation is severely affected by drought stress and it is considered as the major limiting factor for their productivity. In recent years, this plant has been subjected to intensive research focused on improving its resilience against water scarcity; particularly the molecular mechanisms in response to drought stress have become an underlying issue for its improvement. To better understand water stress and the molecular mechanisms we performed a de novo transcriptomic assembly of sugarcane (var. Mex 69-290). A total of 16 libraries were sequenced in a 2x100 bp configuration on a HiSeq-Illumina platform. A total of 536 and 750 genes were differentially up-regulated along with the stress treatments for leave and root tissues respectively, while 1093 and 531 genes were differentially down-regulated in leaves and roots respectively. Gene Ontology functional analysis showed that genes related to response of water deprivation, heat, abscisic acid, and flavonoid biosynthesis were enriched during stress treatment in our study. The reliability of the observed expression patterns was confirmed by RT-qPCR. Additionally, several physiological parameters of sugarcane were significantly affected due to stress imposition. The results of this study may help identify useful target genes and provide tissue-specific data set of genes that are differentially expressed in response to osmotic stress, as well as a complete analysis of the main groups is significantly enriched under this condition. This study provides a useful benchmark for improving drought tolerance in sugarcane and other economically important grass species.
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Affiliation(s)
| | | | - Jesus A. Zamora-Briseño
- Unidad de Biotecnología, Centro de Investigación Científica de Yucatán, Mérida, Yucatán, México
| | - Jorge T. Ayala-Sumuano
- Departamento de Neurobiología del Desarrollo y Neurofisiología, Instituto de Neurobiología, Universidad Nacional Autónoma de México, Campus Juriquilla, Querétaro, México
| | - Victor M. Gonzalez-Mendoza
- Unidad de Bioquímica y Biología Molecular de Plantas, Centro de Investigación Científica de Yucatán, Mérida, Yucatán, México
| | - Francisco Espadas-Gil
- Unidad de Biotecnología, Centro de Investigación Científica de Yucatán, Mérida, Yucatán, México
| | - Luis D. Alcaraz
- Laboratorio Nacional de Ciencias de la Sostenibilidad (LANCIS), Instituto de Ecología, Universidad Nacional Autónoma de México, Cd. Mx, México
| | - Enrique Castaño
- Unidad de Bioquímica y Biología Molecular de Plantas, Centro de Investigación Científica de Yucatán, Mérida, Yucatán, México
| | - Miguel A. Keb-Llanes
- Unidad de Biotecnología, Centro de Investigación Científica de Yucatán, Mérida, Yucatán, México
| | - Felipe Sanchez-Teyer
- Unidad de Biotecnología, Centro de Investigación Científica de Yucatán, Mérida, Yucatán, México
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153
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Hernández-Sánchez IE, Maruri-López I, Graether SP, Jiménez-Bremont JF. In vivo evidence for homo- and heterodimeric interactions of Arabidopsis thaliana dehydrins AtCOR47, AtERD10, and AtRAB18. Sci Rep 2017; 7:17036. [PMID: 29213048 PMCID: PMC5719087 DOI: 10.1038/s41598-017-15986-2] [Citation(s) in RCA: 33] [Impact Index Per Article: 4.7] [Reference Citation Analysis] [Abstract] [MESH Headings] [Track Full Text] [Download PDF] [Figures] [Journal Information] [Subscribe] [Scholar Register] [Received: 04/13/2017] [Accepted: 11/06/2017] [Indexed: 11/09/2022] Open
Abstract
Dehydrins (DHNs) are intrinsically disordered proteins that play central roles in plant abiotic stress responses; however, how they work remains unclear. Herein, we report the in planta subcellular localization of Arabidopsis thaliana DHNs AtCOR47, AtERD10, and AtRAB18 through GFP translational fusions. To explore the dimerization ability of the Arabidopsis acidic DHNs AtCOR47 and AtERD10, we conducted an in planta DHN binding assay using the Bimolecular Fluorescence Complementation (BiFC) technique. Our analyses revealed homodimeric interactions for AtCOR47 and AtERD10; interestingly, heterodimeric associations also occurred with these DHNs, and these interactions were observed in the cytosol of tobacco cells. Furthermore, we evaluated whether Arabidopsis basic DHNs, such as AtRAB18, could also interact with itself and/or with AtCOR47 and AtERD10 in the BiFC system. Our data revealed homodimeric RAB18 complexes in the nucleus and cytosol, while heterodimeric associations between AtRAB18 and acidic DHNs occurred only in the cytosol. Finally, we demonstrated the presence of heterodimeric complexes among Arabidopsis AtCOR47, AtERD10, and AtRAB18 DHNs with their acidic ortholog the OpsDHN1 from Opuntia streptacantha; these heterodimeric interactions showed different subcellular distributions. Our results guide DHN research toward a new scenario where DHN/DHN oligomerization could be explored as a part of their molecular mechanism.
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Affiliation(s)
- Itzell E Hernández-Sánchez
- Laboratorio de Biología Molecular de Hongos y Plantas, División de Biología Molecular, Instituto Potosino de Investigación Científica y Tecnológica AC, San Luis Potosí, Mexico
| | - Israel Maruri-López
- Laboratorio de Biología Molecular de Hongos y Plantas, División de Biología Molecular, Instituto Potosino de Investigación Científica y Tecnológica AC, San Luis Potosí, Mexico
| | - Steffen P Graether
- Department of Molecular and Cellular Biology, University of Guelph, Guelph, ON, Canada
| | - Juan F Jiménez-Bremont
- Laboratorio de Biología Molecular de Hongos y Plantas, División de Biología Molecular, Instituto Potosino de Investigación Científica y Tecnológica AC, San Luis Potosí, Mexico.
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154
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Che-Othman MH, Millar AH, Taylor NL. Connecting salt stress signalling pathways with salinity-induced changes in mitochondrial metabolic processes in C3 plants. PLANT, CELL & ENVIRONMENT 2017; 40:2875-2905. [PMID: 28741669 DOI: 10.1111/pce.13034] [Citation(s) in RCA: 46] [Impact Index Per Article: 6.6] [Reference Citation Analysis] [Abstract] [Key Words] [MESH Headings] [Track Full Text] [Subscribe] [Scholar Register] [Received: 04/03/2017] [Revised: 06/26/2017] [Accepted: 07/09/2017] [Indexed: 05/12/2023]
Abstract
Salinity exerts a severe detrimental effect on crop yields globally. Growth of plants in saline soils results in physiological stress, which disrupts the essential biochemical processes of respiration, photosynthesis, and transpiration. Understanding the molecular responses of plants exposed to salinity stress can inform future strategies to reduce agricultural losses due to salinity; however, it is imperative that signalling and functional response processes are connected to tailor these strategies. Previous research has revealed the important role that plant mitochondria play in the salinity response of plants. Review of this literature shows that 2 biochemical processes required for respiratory function are affected under salinity stress: the tricarboxylic acid cycle and the transport of metabolites across the inner mitochondrial membrane. However, the mechanisms by which components of these processes are affected or react to salinity stress are still far from understood. Here, we examine recent findings on the signal transduction pathways that lead to adaptive responses of plants to salinity and discuss how they can be involved in and be affected by modulation of the machinery of energy metabolism with attention to the role of the tricarboxylic acid cycle enzymes and mitochondrial membrane transporters in this process.
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Affiliation(s)
- M Hafiz Che-Othman
- ARC Centre of Excellence in Plant Energy Biology, School of Molecular Sciences, The University of Western Australia, Crawley, Western Australia, WA 6009, Australia
- School of Bioscience and Biotechnology, Faculty of Science and Technology, National University of Malaysia, Bangi, Selangor, 43600, Malaysia
| | - A Harvey Millar
- ARC Centre of Excellence in Plant Energy Biology, School of Molecular Sciences, The University of Western Australia, Crawley, Western Australia, WA 6009, Australia
| | - Nicolas L Taylor
- ARC Centre of Excellence in Plant Energy Biology, School of Molecular Sciences, The University of Western Australia, Crawley, Western Australia, WA 6009, Australia
- Institute of Agriculture, The University of Western Australia, Crawley, Western Australia, WA 6009, Australia
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155
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Bertrand A, Bipfubusa M, Claessens A, Rocher S, Castonguay Y. Effect of photoperiod prior to cold acclimation on freezing tolerance and carbohydrate metabolism in alfalfa (Medicago sativa L.). PLANT SCIENCE : AN INTERNATIONAL JOURNAL OF EXPERIMENTAL PLANT BIOLOGY 2017; 264:122-128. [PMID: 28969792 DOI: 10.1016/j.plantsci.2017.09.003] [Citation(s) in RCA: 11] [Impact Index Per Article: 1.6] [Reference Citation Analysis] [Abstract] [Key Words] [MESH Headings] [Track Full Text] [Subscribe] [Scholar Register] [Received: 03/27/2017] [Revised: 08/30/2017] [Accepted: 09/01/2017] [Indexed: 05/11/2023]
Abstract
Cold acclimation proceeds sequentially in response to decreases in photoperiod and temperature. This study aimed at assessing the impact of photoperiod prior to cold acclimation on freezing tolerance and related biochemical and molecular responses in two alfalfa cultivars. The fall dormant cultivar Evolution and semi-dormant cultivar 6010 were grown in growth chambers under different photoperiods (8, 10, 12, 14 or 16h) prior to cold acclimation. Freezing tolerance was evaluated as well as carbohydrate concentrations, levels of transcripts encoding enzymes of carbohydrate metabolism as well as a K-3dehydrin, before and after cold acclimation. The fall dormant cultivar Evolution had a better freezing tolerance than the semi-dormant cultivar 6010. The effect of photoperiod prior to cold acclimation on the level of freezing tolerance differed between the two cultivars: an 8h-photoperiod induced the highest level of freezing tolerance in Evolution and the lowest in 6010. In Evolution, the 8h-induced superior freezing tolerance was associated with higher concentration of raffinose-family oligosaccharides (RFO). The transcript levels of sucrose synthase (SuSy) decreased whereas those of sucrose phosphatase synthase (SPS) and galactinol synthase (GaS) increased in response to cold acclimation in both cultivars. Our results indicate that RFO metabolism could be involved in short photoperiod-induced freezing tolerance in dormant alfalfa cultivars.
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Affiliation(s)
- Annick Bertrand
- Quebec Research and Development Centre, Agriculture and Agri-Food Canada, Québec, QC, G1V 2J3, Canada.
| | - Marie Bipfubusa
- Quebec Research and Development Centre, Agriculture and Agri-Food Canada, Québec, QC, G1V 2J3, Canada
| | - Annie Claessens
- Quebec Research and Development Centre, Agriculture and Agri-Food Canada, Québec, QC, G1V 2J3, Canada
| | - Solen Rocher
- Quebec Research and Development Centre, Agriculture and Agri-Food Canada, Québec, QC, G1V 2J3, Canada
| | - Yves Castonguay
- Quebec Research and Development Centre, Agriculture and Agri-Food Canada, Québec, QC, G1V 2J3, Canada
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156
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Haimi P, Vinskienė J, Stepulaitienė I, Baniulis D, Stanienė G, Šikšnianienė JB, Rugienius R. Patterns of low temperature induced accumulation of dehydrins in Rosaceae crops-Evidence for post-translational modification in apple. JOURNAL OF PLANT PHYSIOLOGY 2017; 218:175-181. [PMID: 28886453 DOI: 10.1016/j.jplph.2017.08.008] [Citation(s) in RCA: 4] [Impact Index Per Article: 0.6] [Reference Citation Analysis] [Abstract] [Key Words] [MESH Headings] [Track Full Text] [Subscribe] [Scholar Register] [Received: 05/24/2017] [Revised: 08/06/2017] [Accepted: 08/07/2017] [Indexed: 06/07/2023]
Abstract
Important crop plants of Rosaceae family are often damaged during winter due to the lack of acclimation and cold hardiness. One of the cellular responses of plants to cold stress is the accumulation of dehydrin proteins. We studied the expression of dehydrins in several Rosaceae species during low temperature treatment in vitro. Microshoots of Pyrus communis, Malus×domestica, Fragaria vesca, Fragaria×ananassa, Prunus cerasus and Prunus avium cultivars were grown in low temperature conditions. Genotype -specific accumulation of dehydrins was detected by immunoblot analysis of the extracted proteins. Untargeted difference gel electrophoresis of Malus x domestica microshoots revealed an extensive accumulation of three dehydrins. In a protein phosphatase assay, MdDHN2 and MdDHN4, but not MdDHN6 proteins were found to be extensively phosphorylated. In terms of the amount of protein synthesized, dehydrins are a major protein-level adaptation mechanism to low temperature in M. x domestica. In addition to dehydrins, the induction of proteins involved in the response for oxidative stress were observed. Additionally, a Xero2 -like dehydrin of F. vesca was detected by difference gel electrophoresis and identified by nano LC-MS/MS.
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Affiliation(s)
- Perttu Haimi
- Institute of Horticulture, Lithuanian Research Centre for Agriculture and Forestry, Kaunas st. 30, Babtai LT-54333, Kaunas distr., Lithuania.
| | - Jurgita Vinskienė
- Institute of Horticulture, Lithuanian Research Centre for Agriculture and Forestry, Kaunas st. 30, Babtai LT-54333, Kaunas distr., Lithuania
| | - Inga Stepulaitienė
- Institute of Horticulture, Lithuanian Research Centre for Agriculture and Forestry, Kaunas st. 30, Babtai LT-54333, Kaunas distr., Lithuania
| | - Danas Baniulis
- Institute of Horticulture, Lithuanian Research Centre for Agriculture and Forestry, Kaunas st. 30, Babtai LT-54333, Kaunas distr., Lithuania
| | - Gražina Stanienė
- Institute of Horticulture, Lithuanian Research Centre for Agriculture and Forestry, Kaunas st. 30, Babtai LT-54333, Kaunas distr., Lithuania
| | - Jūratė Bronė Šikšnianienė
- Institute of Horticulture, Lithuanian Research Centre for Agriculture and Forestry, Kaunas st. 30, Babtai LT-54333, Kaunas distr., Lithuania
| | - Rytis Rugienius
- Institute of Horticulture, Lithuanian Research Centre for Agriculture and Forestry, Kaunas st. 30, Babtai LT-54333, Kaunas distr., Lithuania
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157
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Fileccia V, Ruisi P, Ingraffia R, Giambalvo D, Frenda AS, Martinelli F. Arbuscular mycorrhizal symbiosis mitigates the negative effects of salinity on durum wheat. PLoS One 2017; 12:e0184158. [PMID: 28877207 PMCID: PMC5587292 DOI: 10.1371/journal.pone.0184158] [Citation(s) in RCA: 30] [Impact Index Per Article: 4.3] [Reference Citation Analysis] [Abstract] [MESH Headings] [Track Full Text] [Download PDF] [Figures] [Journal Information] [Subscribe] [Scholar Register] [Received: 05/19/2017] [Accepted: 08/19/2017] [Indexed: 12/01/2022] Open
Abstract
Arbuscular mycorrhizal (AM) symbiosis is generally considered to be effective in ameliorating the plant tolerance to salt stress. Unfortunately, the comprehension of the mechanisms implicated in salinity stress alleviation by AM symbiosis is far from being complete. Thus, an experiment was performed by growing durum wheat (Triticum durum Desf.) plants under salt-stress conditions to evaluate the influence of AM symbiosis on both the plant growth and the regulation of a number of genes related to salt stress and nutrient uptake. Durum wheat plants were grown outdoors in pots in absence or in presence of salt stress and with or without AM fungi inoculation. The inoculum consisted of a mixture of spores of Rhizophagus irregularis (formerly Glomus intraradices) and Funneliformis mosseae (formerly G. mosseae). Results indicate that AM symbiosis can alleviate the detrimental effects of salt stress on the growth of durum wheat plants. In fact, under salt stress conditions mycorrhizal plants produced more aboveground and root biomass, had higher N uptake and aboveground N concentration, and showed greater stability of plasma membranes compared to non-mycorrhizal plants. Inoculation with AM fungi had no effect on the expression of the N transporter genes AMT1.1, AMT1.2, and NAR2.2, either under no-stress or salt stress conditions, probably due to the fact that plants were grown under optimal N conditions; on the contrary, NRT1.1 was always upregulated by AM symbiosis. Moreover, the level of expression of the drought stress-related genes AQP1, AQP4, PIP1, DREB5, and DHN15.3 observed in the mycorrhizal stressed plants was markedly lower than that observed in the non-mycorrhizal stressed plants and very close to that observed in the non-stressed plants. Our hypothesis is that, in the present study, AM symbiosis did not increase the plant tolerance to salt stress but instead generated a condition in which plants were subjected to a level of salt stress lower than that of non-mycorrhizal plants.
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Affiliation(s)
- Veronica Fileccia
- Dipartimento di Scienze Agrarie, Alimentari e Forestali, Università degli Studi di Palermo, Palermo, Italy
| | - Paolo Ruisi
- Dipartimento di Scienze Agrarie, Alimentari e Forestali, Università degli Studi di Palermo, Palermo, Italy
| | - Rosolino Ingraffia
- Dipartimento di Scienze Agrarie, Alimentari e Forestali, Università degli Studi di Palermo, Palermo, Italy
| | - Dario Giambalvo
- Dipartimento di Scienze Agrarie, Alimentari e Forestali, Università degli Studi di Palermo, Palermo, Italy
| | - Alfonso Salvatore Frenda
- Dipartimento di Scienze Agrarie, Alimentari e Forestali, Università degli Studi di Palermo, Palermo, Italy
| | - Federico Martinelli
- Dipartimento di Scienze Agrarie, Alimentari e Forestali, Università degli Studi di Palermo, Palermo, Italy
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158
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Basu S, Rabara R. Abscisic acid — An enigma in the abiotic stress tolerance of crop plants. ACTA ACUST UNITED AC 2017. [DOI: 10.1016/j.plgene.2017.04.008] [Citation(s) in RCA: 10] [Impact Index Per Article: 1.4] [Reference Citation Analysis] [Track Full Text] [Journal Information] [Subscribe] [Scholar Register] [Indexed: 02/07/2023]
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159
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Ghosh Dasgupta M, Dharanishanthi V. Identification of PEG-induced water stress responsive transcripts using co-expression network in Eucalyptus grandis. Gene 2017; 627:393-407. [DOI: 10.1016/j.gene.2017.06.050] [Citation(s) in RCA: 5] [Impact Index Per Article: 0.7] [Reference Citation Analysis] [Track Full Text] [Journal Information] [Subscribe] [Scholar Register] [Received: 02/09/2017] [Revised: 05/12/2017] [Accepted: 06/28/2017] [Indexed: 12/23/2022]
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160
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Nayak SN, Agarwal G, Pandey MK, Sudini HK, Jayale AS, Purohit S, Desai A, Wan L, Guo B, Liao B, Varshney RK. Aspergillus flavus infection triggered immune responses and host-pathogen cross-talks in groundnut during in-vitro seed colonization. Sci Rep 2017; 7:9659. [PMID: 28851929 PMCID: PMC5574979 DOI: 10.1038/s41598-017-09260-8] [Citation(s) in RCA: 29] [Impact Index Per Article: 4.1] [Reference Citation Analysis] [Abstract] [MESH Headings] [Track Full Text] [Download PDF] [Figures] [Journal Information] [Subscribe] [Scholar Register] [Received: 02/21/2017] [Accepted: 07/19/2017] [Indexed: 11/25/2022] Open
Abstract
Aflatoxin contamination, caused by fungal pathogen Aspergillus flavus, is a major quality and health problem delimiting the trade and consumption of groundnut (Arachis hypogaea L.) worldwide. RNA-seq approach was deployed to understand the host-pathogen interaction by identifying differentially expressed genes (DEGs) for resistance to in-vitro seed colonization (IVSC) at four critical stages after inoculation in J 11 (resistant) and JL 24 (susceptible) genotypes of groundnut. About 1,344.04 million sequencing reads have been generated from sixteen libraries representing four stages in control and infected conditions. About 64% and 67% of quality filtered reads (1,148.09 million) were mapped onto A (A. duranensis) and B (A. ipaёnsis) subgenomes of groundnut respectively. About 101 million unaligned reads each from J 11 and JL 24 were used to map onto A. flavus genome. As a result, 4,445 DEGs including defense-related genes like senescence-associated proteins, resveratrol synthase, 9s-lipoxygenase, pathogenesis-related proteins were identified. In A. flavus, about 578 DEGs coding for growth and development of fungus, aflatoxin biosynthesis, binding, transport, and signaling were identified in compatible interaction. Besides identifying candidate genes for IVSC resistance in groundnut, the study identified the genes involved in host-pathogen cross-talks and markers that can be used in breeding resistant varieties.
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Affiliation(s)
- Spurthi N Nayak
- International Crops Research Institute for the Semi-Arid Tropics (ICRISAT), Hyderabad, India
- Department of Biotechnology, University of Agricultural Sciences, Dharwad, India
| | - Gaurav Agarwal
- International Crops Research Institute for the Semi-Arid Tropics (ICRISAT), Hyderabad, India
- Crop Protection and Management Research Unit, USDA-Agricultural Research Service, Tifton, GA, USA
- University of Georgia, Department of Plant Pathology, Tifton, GA, USA
| | - Manish K Pandey
- International Crops Research Institute for the Semi-Arid Tropics (ICRISAT), Hyderabad, India
| | - Hari K Sudini
- International Crops Research Institute for the Semi-Arid Tropics (ICRISAT), Hyderabad, India
| | - Ashwin S Jayale
- International Crops Research Institute for the Semi-Arid Tropics (ICRISAT), Hyderabad, India
| | - Shilp Purohit
- International Crops Research Institute for the Semi-Arid Tropics (ICRISAT), Hyderabad, India
| | - Aarthi Desai
- International Crops Research Institute for the Semi-Arid Tropics (ICRISAT), Hyderabad, India
| | - Liyun Wan
- Oil Crops Research Institute (OCRI), Chinese Academy of Agricultural Sciences (CAAS), Wuhan, China
| | - Baozhu Guo
- Crop Protection and Management Research Unit, USDA-Agricultural Research Service, Tifton, GA, USA
| | - Boshou Liao
- Oil Crops Research Institute (OCRI), Chinese Academy of Agricultural Sciences (CAAS), Wuhan, China
| | - Rajeev K Varshney
- International Crops Research Institute for the Semi-Arid Tropics (ICRISAT), Hyderabad, India.
- The University of Western Australia, Crawley, WA, Australia.
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161
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Tellis M, Mathur M, Gurjar G, Kadoo N, Gupta V. Identification and functionality prediction of pathogenesis-related protein 1 from legume family. Proteins 2017; 85:2066-2080. [PMID: 28762578 DOI: 10.1002/prot.25361] [Citation(s) in RCA: 6] [Impact Index Per Article: 0.9] [Reference Citation Analysis] [Abstract] [Key Words] [Track Full Text] [Journal Information] [Subscribe] [Scholar Register] [Received: 03/28/2017] [Revised: 07/19/2017] [Accepted: 07/27/2017] [Indexed: 11/11/2022]
Abstract
The production and accumulation of pathogenesis-related (PR) proteins in plants is one of the important responses to biotic and abiotic stress. Large number of identified PR proteins has been categorized into 17 functional families based on their structure, phylogenetics, and biological activities. However, they are not widely studied in legume crops. Using 29 PR1 proteins from Arabidopsis thaliana, as query, here we have predicted 92 candidate PR1 proteins through the PSI-BLAST and HMMER programs. These candidate proteins were comprehensively analyzed with, multiple sequence alignment, domain architecture studies, signal peptide, and motif extraction followed by phylogenetic analysis. Further, response of two candidate PR1 proteins from chickpea against Fusarium oxysporum f.sp.ciceri attack was validated using qRT-PCR followed by their 3D structure prediction. To decipher mode of action for PR1s, docking of pathogen extracellular matrix components along with fungal elicitors was performed with two chickpea PR1 proteins. Based on these findings, we propose carbohydrate to be the unique pathogen-recognition feature for PR1 proteins and β-glucanase activity via β-glucan binding or modification.
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Affiliation(s)
- Meenakshi Tellis
- Division of Biochemical Sciences, CSIR-National Chemical Laboratory, Pune, India
| | - Monika Mathur
- Division of Biochemical Sciences, CSIR-National Chemical Laboratory, Pune, India
| | - Gayatri Gurjar
- Division of Biochemical Sciences, CSIR-National Chemical Laboratory, Pune, India.,Department of Biotechnology, Fergusson College, Pune, India
| | - Narendra Kadoo
- Division of Biochemical Sciences, CSIR-National Chemical Laboratory, Pune, India
| | - Vidya Gupta
- Division of Biochemical Sciences, CSIR-National Chemical Laboratory, Pune, India
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162
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Expression Profiling in Pinus pinaster in Response to Infection with the Pine Wood Nematode Bursaphelenchus xylophilus. FORESTS 2017. [DOI: 10.3390/f8080279] [Citation(s) in RCA: 16] [Impact Index Per Article: 2.3] [Reference Citation Analysis] [Track Full Text] [Subscribe] [Scholar Register] [Indexed: 01/01/2023]
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163
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Villegente M, Marmey P, Job C, Galland M, Cueff G, Godin B, Rajjou L, Balliau T, Zivy M, Fogliani B, Sarramegna-Burtet V, Job D. A Combination of Histological, Physiological, and Proteomic Approaches Shed Light on Seed Desiccation Tolerance of the Basal Angiosperm Amborella trichopoda. Proteomes 2017; 5:E19. [PMID: 28788068 PMCID: PMC5620536 DOI: 10.3390/proteomes5030019] [Citation(s) in RCA: 7] [Impact Index Per Article: 1.0] [Reference Citation Analysis] [Abstract] [Key Words] [Track Full Text] [Download PDF] [Figures] [Journal Information] [Subscribe] [Scholar Register] [Received: 06/30/2017] [Revised: 07/22/2017] [Accepted: 07/25/2017] [Indexed: 12/13/2022] Open
Abstract
Desiccation tolerance allows plant seeds to remain viable in a dry state for years and even centuries. To reveal potential evolutionary processes of this trait, we have conducted a shotgun proteomic analysis of isolated embryo and endosperm from mature seeds of Amborella trichopoda, an understory shrub endemic to New Caledonia that is considered to be the basal extant angiosperm. The present analysis led to the characterization of 415 and 69 proteins from the isolated embryo and endosperm tissues, respectively. The role of these proteins is discussed in terms of protein evolution and physiological properties of the rudimentary, underdeveloped, Amborella embryos, notably considering that the acquisition of desiccation tolerance corresponds to the final developmental stage of mature seeds possessing large embryos.
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Affiliation(s)
- Matthieu Villegente
- Institut des Sciences Exactes et Appliquées (EA 7484), Université de Nouvelle-Calédonie, BP R4, 98851 Nouméa, Nouvelle-Calédonie.
| | - Philippe Marmey
- Institut de recherche pour le développement (IRD), UMR Diversité, Adaptation et Développement des plantes (DIADE), BP A5, 98848 Nouméa Cedex, Nouvelle-Calédonie.
| | - Claudette Job
- Centre National de la Recherche Scientifique (CNRS), CNRS-Université Claude Bernard Lyon-Institut National des Sciences Appliquées-Bayer CropScience (UMR5240), Bayer CropScience, F-69263 Lyon CEDEX 9, France.
| | - Marc Galland
- IJPB, Institut Jean-Pierre Bourgin (Institut National de la Rechercherche Agronomique(INRA), AgroParisTech, CNRS, Université Paris-Saclay) ; « Saclay Plant Sciences (SPS) » - RD10, F-78026 Versailles, France.
| | - Gwendal Cueff
- IJPB, Institut Jean-Pierre Bourgin (Institut National de la Rechercherche Agronomique(INRA), AgroParisTech, CNRS, Université Paris-Saclay) ; « Saclay Plant Sciences (SPS) » - RD10, F-78026 Versailles, France.
- AgroParisTech, Département « Science de la Vie et Santé », Unité de Formation-Recherche en Physiologie végétale, F-75231 Paris, France.
| | - Béatrice Godin
- IJPB, Institut Jean-Pierre Bourgin (Institut National de la Rechercherche Agronomique(INRA), AgroParisTech, CNRS, Université Paris-Saclay) ; « Saclay Plant Sciences (SPS) » - RD10, F-78026 Versailles, France.
- AgroParisTech, Département « Science de la Vie et Santé », Unité de Formation-Recherche en Physiologie végétale, F-75231 Paris, France.
| | - Loïc Rajjou
- IJPB, Institut Jean-Pierre Bourgin (Institut National de la Rechercherche Agronomique(INRA), AgroParisTech, CNRS, Université Paris-Saclay) ; « Saclay Plant Sciences (SPS) » - RD10, F-78026 Versailles, France.
- AgroParisTech, Département « Science de la Vie et Santé », Unité de Formation-Recherche en Physiologie végétale, F-75231 Paris, France.
| | - Thierry Balliau
- Plateforme d'Analyse Protéomique de Paris Sud Ouest (PAPPSO), GQE-Le Moulon, INRA, Université Paris-Sud, CNRS, AgroParisTech, Université Paris-Saclay, F-91190 Gif-sur-Yvette, France.
| | - Michel Zivy
- Plateforme d'Analyse Protéomique de Paris Sud Ouest (PAPPSO), GQE-Le Moulon, INRA, Université Paris-Sud, CNRS, AgroParisTech, Université Paris-Saclay, F-91190 Gif-sur-Yvette, France.
| | - Bruno Fogliani
- Institut des Sciences Exactes et Appliquées (EA 7484), Université de Nouvelle-Calédonie, BP R4, 98851 Nouméa, Nouvelle-Calédonie.
- Institut Agronomique Néo-Calédonien (IAC), Équipe ARBOREAL, Agriculture Biodiversité et Valorisation, BP 73 Port Laguerre, 98890 Païta, Nouvelle-Calédonie.
| | - Valérie Sarramegna-Burtet
- Institut des Sciences Exactes et Appliquées (EA 7484), Université de Nouvelle-Calédonie, BP R4, 98851 Nouméa, Nouvelle-Calédonie.
| | - Dominique Job
- Centre National de la Recherche Scientifique (CNRS), CNRS-Université Claude Bernard Lyon-Institut National des Sciences Appliquées-Bayer CropScience (UMR5240), Bayer CropScience, F-69263 Lyon CEDEX 9, France.
- AgroParisTech, Département « Science de la Vie et Santé », Unité de Formation-Recherche en Physiologie végétale, F-75231 Paris, France.
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164
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Gonzalez LE, Keller K, Chan KX, Gessel MM, Thines BC. Transcriptome analysis uncovers Arabidopsis F-BOX STRESS INDUCED 1 as a regulator of jasmonic acid and abscisic acid stress gene expression. BMC Genomics 2017; 18:533. [PMID: 28716048 PMCID: PMC5512810 DOI: 10.1186/s12864-017-3864-6] [Citation(s) in RCA: 23] [Impact Index Per Article: 3.3] [Reference Citation Analysis] [Abstract] [Key Words] [Track Full Text] [Download PDF] [Figures] [Journal Information] [Subscribe] [Scholar Register] [Received: 11/03/2016] [Accepted: 06/15/2017] [Indexed: 01/14/2023] Open
Abstract
Background The ubiquitin 26S proteasome system (UPS) selectively degrades cellular proteins, which results in physiological changes to eukaryotic cells. F-box proteins are substrate adaptors within the UPS and are responsible for the diversity of potential protein targets. Plant genomes are enriched in F-box genes, but the vast majority of these have unknown roles. This work investigated the Arabidopsis F-box gene F-BOX STRESS INDUCED 1 (FBS1) for its effects on gene expression in order elucidate its previously unknown biological function. Results Using publically available Affymetrix ATH1 microarray data, we show that FBS1 is significantly co-expressed in abiotic stresses with other well-characterized stress response genes, including important stress-related transcriptional regulators. This gene suite is most highly expressed in roots under cold and salt stresses. Transcriptome analysis of fbs1–1 knock-out plants grown at a chilling temperature shows that hundreds of genes require FBS1 for appropriate expression, and that these genes are enriched in those having roles in both abiotic and biotic stress responses. Based on both this genome-wide expression data set and quantitative real-time PCR (qPCR) analysis, it is apparent that FBS1 is required for elevated expression of many jasmonic acid (JA) genes that have established roles in combatting environmental stresses, and that it also controls a subset of JA biosynthesis genes. FBS1 also significantly impacts abscisic acid (ABA) regulated genes, but this interaction is more complex, as FBS1 has both positive and negative effects on ABA-inducible and ABA-repressible gene modules. One noteworthy effect of FBS1 on ABA-related stress processes, however, is the restraint it imposes on the expression of multiple class I LIPID TRANSFER PROTEIN (LTP) gene family members that have demonstrated protective effects in water deficit-related stresses. Conclusion FBS1 impacts plant stress responses by regulating hundreds of genes that respond to the plant stress hormones JA and ABA. The positive effect that FBS1 has on JA processes and the negative effect it has on at least some ABA processes indicates that it in part regulates cellular responses balanced between these two important stress hormones. More broadly then, FBS1 may aid plant cells in switching between certain biotic (JA) and abiotic (ABA) stress responses. Finally, because FBS1 regulates a subset of JA biosynthesis and response genes, we conclude that it might have a role in tuning hormone responses to particular circumstances at the transcriptional level. Electronic supplementary material The online version of this article (doi:10.1186/s12864-017-3864-6) contains supplementary material, which is available to authorized users.
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Affiliation(s)
- Lauren E Gonzalez
- Keck Science Department, Claremont McKenna, Pitzer, and Scripps Colleges, Claremont, CA, 91711, USA.,Present address: Department of Genetics, Yale University School of Medicine, New Haven, CT, 06510, USA
| | - Kristen Keller
- Keck Science Department, Claremont McKenna, Pitzer, and Scripps Colleges, Claremont, CA, 91711, USA.,Present address: Department of Biostatistics, UCLA Fielding School of Public Health, Los Angeles, CA, 90095, USA
| | - Karen X Chan
- Keck Science Department, Claremont McKenna, Pitzer, and Scripps Colleges, Claremont, CA, 91711, USA
| | - Megan M Gessel
- Chemistry Department, University of Puget Sound, Tacoma, WA, 98416, USA
| | - Bryan C Thines
- Biology Department, University of Puget Sound, Tacoma, WA, 98416, USA.
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165
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Jespersen D, Yu J, Huang B. Metabolic Effects of Acibenzolar- S-Methyl for Improving Heat or Drought Stress in Creeping Bentgrass. FRONTIERS IN PLANT SCIENCE 2017; 8:1224. [PMID: 28744300 PMCID: PMC5504235 DOI: 10.3389/fpls.2017.01224] [Citation(s) in RCA: 8] [Impact Index Per Article: 1.1] [Reference Citation Analysis] [Abstract] [Key Words] [Track Full Text] [Subscribe] [Scholar Register] [Received: 02/21/2017] [Accepted: 06/28/2017] [Indexed: 05/27/2023]
Abstract
Acibenzolar-S-methyl (ASM) is a synthetic functional analog of salicylic acid which can induce systemic acquired resistance in plants, but its effects on abiotic stress tolerance is not well known. The objectives of this study were to examine effects of acibenzolar-S-methyl on heat or drought tolerance in creeping bentgrass (Agrostis stolonifera) and to determine major ASM-responsive metabolites and proteins associated with enhanced abiotic stress tolerance. Creeping bentgrass plants (cv. 'Penncross') were foliarly sprayed with ASM and were exposed to non-stress (20/15°C day/night), heat stress (35/30°C), or drought conditions (by withholding irrigation) in controlled-environment growth chambers. Exogenous ASM treatment resulted in improved heat or drought tolerance, as demonstrated by higher overall turf quality, relative water content, and chlorophyll content compared to the untreated control. Western blotting revealed that ASM application resulted in up-regulation of ATP synthase, HSP-20, PR-3, and Rubisco in plants exposed to heat stress, and greater accumulation of dehydrin in plants exposed to drought stress. Metabolite profiling identified a number of amino acids, organic acids, and sugars which were differentially accumulated between ASM treated and untreated plants under heat or drought stress, including aspartic acid, glycine, citric acid, malic acid, and the sugars glucose, and fructose. Our results suggested that ASM was effective in improving heat or drought tolerance in creeping bentgrass, mainly through enhancing protein synthesis and metabolite accumulation involved in osmotic adjustment, energy metabolism, and stress signaling.
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Affiliation(s)
- David Jespersen
- Department of Plant Biology and Pathology, Rutgers University, New BrunswickNJ, United States
- Department of Crop and Soil Sciences, University of Georgia, GriffinGA, United States
| | - Jingjin Yu
- College of Agro-Grassland Science, Nanjing Agricultural UniversityNanjing, China
| | - Bingru Huang
- Department of Plant Biology and Pathology, Rutgers University, New BrunswickNJ, United States
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166
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Abedini R, GhaneGolmohammadi F, PishkamRad R, Pourabed E, Jafarnezhad A, Shobbar ZS, Shahbazi M. Plant dehydrins: shedding light on structure and expression patterns of dehydrin gene family in barley. JOURNAL OF PLANT RESEARCH 2017; 130:747-763. [PMID: 28389925 DOI: 10.1007/s10265-017-0941-5] [Citation(s) in RCA: 13] [Impact Index Per Article: 1.9] [Reference Citation Analysis] [Abstract] [Key Words] [MESH Headings] [Track Full Text] [Subscribe] [Scholar Register] [Received: 09/30/2016] [Accepted: 01/24/2017] [Indexed: 05/08/2023]
Abstract
Dehydrins, an important group of late embryogenesis abundant proteins, accumulate in response to dehydration stresses and play protective roles under stress conditions. Herein, phylogenetic analysis of the dehydrin family was performed using the protein sequences of 108 dehydrins obtained from 14 plant species based on plant taxonomy and protein subclasses. Sub-cellular localization and phosphorylation sites of these proteins were also predicted. The protein features distinguishing these dehydrins categories were identified using various attribute weighting and decision tree analyses. The results revealed that the presence of the S motif preceding the K motif (YnSKn, SKn, and SnKS) was more evident and the YnSKn subclass was more frequent in monocots. In barley, as one of the most drought-tolerant crops, there are ten members of YnSKn out of 13 HvDhns. In promoter regions, six types of abiotic stress-responsive elements were identified. Regulatory elements in UTR sequences of HvDhns were infrequent while only four miRNA targets were found. Furthermore, physiological parameters and gene expression levels of HvDhns were studied in tolerant (HV1) and susceptible (HV2) cultivars, and in an Iranian tolerant wild barley genotype (Spontaneum; HS) subjected to gradual water stress and after recovery duration at the vegetative stage. The results showed the significant impact of dehydration on dry matter, relative leaf water, chlorophyll contents, and oxidative damages in HV2 compared with the other studied genotypes, suggesting a poor dehydration tolerance, and incapability of recovering after re-watering in HV2. Under severe drought stress, among the 13 HvDhns genes, 5 and 10 were exclusively induced in HV1 and HS, respectively. The gene and protein structures and the expression patterns of HvDhns as well as the physiological data consistently support the role of dehydrins in survival and recovery of barley plants from drought particularly in HS. Overall, this information would be helpful for functional characterization of the Dhn family in plants.
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Affiliation(s)
- Raha Abedini
- Agricultural Biotechnology Research Institute of Iran (ABRII), Agricultural Research, Education and Extension Organization (AREEO), Seed and Plant Improvement Institutes Campus, Mahdasht Road, Karaj, 3135933151, Iran
| | - Farzan GhaneGolmohammadi
- Agricultural Biotechnology Research Institute of Iran (ABRII), Agricultural Research, Education and Extension Organization (AREEO), Seed and Plant Improvement Institutes Campus, Mahdasht Road, Karaj, 3135933151, Iran
- Department of Integrated Biosciences, Graduate School of Frontier Sciences, University of Tokyo, Kashiwa, 277-8562, Japan
| | - Reihaneh PishkamRad
- Agricultural Biotechnology Research Institute of Iran (ABRII), Agricultural Research, Education and Extension Organization (AREEO), Seed and Plant Improvement Institutes Campus, Mahdasht Road, Karaj, 3135933151, Iran
| | - Ehsan Pourabed
- Agricultural Biotechnology Research Institute of Iran (ABRII), Agricultural Research, Education and Extension Organization (AREEO), Seed and Plant Improvement Institutes Campus, Mahdasht Road, Karaj, 3135933151, Iran
| | - Ahad Jafarnezhad
- Agricultural Biotechnology Research Institute of Iran (ABRII), Agricultural Research, Education and Extension Organization (AREEO), Seed and Plant Improvement Institutes Campus, Mahdasht Road, Karaj, 3135933151, Iran
| | - Zahra-Sadat Shobbar
- Agricultural Biotechnology Research Institute of Iran (ABRII), Agricultural Research, Education and Extension Organization (AREEO), Seed and Plant Improvement Institutes Campus, Mahdasht Road, Karaj, 3135933151, Iran.
| | - Maryam Shahbazi
- Agricultural Biotechnology Research Institute of Iran (ABRII), Agricultural Research, Education and Extension Organization (AREEO), Seed and Plant Improvement Institutes Campus, Mahdasht Road, Karaj, 3135933151, Iran.
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167
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Krishnan HB, Natarajan SS, Oehrle NW, Garrett WM, Darwish O. Proteomic Analysis of Pigeonpea (Cajanus cajan) Seeds Reveals the Accumulation of Numerous Stress-Related Proteins. JOURNAL OF AGRICULTURAL AND FOOD CHEMISTRY 2017; 65:4572-4581. [PMID: 28532149 DOI: 10.1021/acs.jafc.7b00998] [Citation(s) in RCA: 16] [Impact Index Per Article: 2.3] [Reference Citation Analysis] [Abstract] [Key Words] [MESH Headings] [Track Full Text] [Subscribe] [Scholar Register] [Indexed: 06/07/2023]
Abstract
Pigeonpea is one of the major sources of dietary protein for more than a billion people living in South Asia. This hardy legume is often grown in low-input and risk-prone marginal environments. Considerable research effort has been devoted by a global research consortium to develop genomic resources for the improvement of this legume crop. These efforts have resulted in the elucidation of the complete genome sequence of pigeonpea. Despite these developments, little is known about the seed proteome of this important crop. Here, we report the proteome of pigeonpea seed. To enable the isolation of maximum number of seed proteins, including those that are present in very low amounts, three different protein fractions were obtained by employing different extraction media. High-resolution two-dimensional (2-D) electrophoresis followed by MALDI-TOF-TOF-MS/MS analysis of these protein fractions resulted in the identification of 373 pigeonpea seed proteins. Consistent with the reported high degree of synteny between the pigeonpea and soybean genomes, a large number of pigeonpea seed proteins exhibited significant amino acid homology with soybean seed proteins. Our proteomic analysis identified a large number of stress-related proteins, presumably due to its adaptation to drought-prone environments. The availability of a pigeonpea seed proteome reference map should shed light on the roles of these identified proteins in various biological processes and facilitate the improvement of seed composition.
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Affiliation(s)
- Hari B Krishnan
- Plant Genetics Research Unit, Agricultural Research Service, U.S. Department of Agriculture, University of Missouri , Columbia, Missouri 65211, United States
| | - Savithiry S Natarajan
- Soybean Genomics and Improvement Laboratory, PSI, Agricultural Research Service, U.S. Department of Agriculture , Beltsville, Maryland 20705, United States
| | - Nathan W Oehrle
- Plant Genetics Research Unit, Agricultural Research Service, U.S. Department of Agriculture, University of Missouri , Columbia, Missouri 65211, United States
| | - Wesley M Garrett
- Animal Biosciences and Biotechnology Laboratory, Agricultural Research Service, U.S. Department of Agriculture , Beltsville, Maryland 20705, United States
| | - Omar Darwish
- Department of Computer and Information Sciences, Towson University , Towson, Maryland 21252, United States
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Tatarinova TD, Perk AA, Bubyakina VV, Vasilieva IV, Ponomarev AG, Maximov TC. Dehydrin stress proteins in Pinus sylvestris L. needles under conditions of extreme climate of Yakutia. DOKL BIOCHEM BIOPHYS 2017; 473:98-101. [PMID: 28510126 DOI: 10.1134/s160767291702003x] [Citation(s) in RCA: 5] [Impact Index Per Article: 0.7] [Reference Citation Analysis] [Abstract] [Track Full Text] [Journal Information] [Subscribe] [Scholar Register] [Received: 05/12/2016] [Indexed: 11/22/2022]
Abstract
This is the first study to investigate stress proteins dehydrins with the use of specific antibodies in the Scots pine (Pinus sylvestris L.) needles and their changes in the annual cycle under extreme climate of Yakutia. No pronounced polymorphism of major dehydrins (14-15 and 66 kDa) has been found during the winter dormancy period of P. sylvestris. A clear correlation between the seasonal variations in dehydrins and changes in the water content in needles was revealed. Consistently high levels of dehydrins was retained throughout the period of low negative temperatures. It is assumed that dehydrins can participate in the formation of P. sylvestris L. resistance to the permafrost conditions.
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Affiliation(s)
- T D Tatarinova
- Institute of Biological Problems of Cryolithozone, Siberian Branch, Russian Academy of Sciences, Moscow, 677980, Russia.
| | - A A Perk
- Institute of Biological Problems of Cryolithozone, Siberian Branch, Russian Academy of Sciences, Moscow, 677980, Russia.
| | - V V Bubyakina
- Institute of Biological Problems of Cryolithozone, Siberian Branch, Russian Academy of Sciences, Moscow, 677980, Russia
| | - I V Vasilieva
- Institute of Biological Problems of Cryolithozone, Siberian Branch, Russian Academy of Sciences, Moscow, 677980, Russia
| | - A G Ponomarev
- Institute of Biological Problems of Cryolithozone, Siberian Branch, Russian Academy of Sciences, Moscow, 677980, Russia
| | - T C Maximov
- Institute of Biological Problems of Cryolithozone, Siberian Branch, Russian Academy of Sciences, Moscow, 677980, Russia
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169
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Genome-wide analysis of rice dehydrin gene family: Its evolutionary conservedness and expression pattern in response to PEG induced dehydration stress. PLoS One 2017; 12:e0176399. [PMID: 28459834 PMCID: PMC5411031 DOI: 10.1371/journal.pone.0176399] [Citation(s) in RCA: 33] [Impact Index Per Article: 4.7] [Reference Citation Analysis] [Abstract] [Track Full Text] [Download PDF] [Figures] [Journal Information] [Subscribe] [Scholar Register] [Received: 02/22/2017] [Accepted: 04/10/2017] [Indexed: 11/21/2022] Open
Abstract
Abiotic stresses adversely affect cellular homeostasis, impairing overall growth and development of plants. These initial stress signals activate downstream signalling processes, which, subsequently, activate stress-responsive mechanisms to re-establish homeostasis. Dehydrins (DHNs) play an important role in combating dehydration stress. Rice (Oryza sativa L.), which is a paddy crop, is susceptible to drought stress. As drought survival in rice might be viewed as a trait with strong evolutionary selection pressure, we observed DHNs in the light of domestication during the course of evolution. Overall, 65 DHNs were identified by a genome-wide survey of 11 rice species, and 3 DHNs were found to be highly conserved. The correlation of a conserved pattern of DHNs with domestication and diversification of wild to cultivated rice was validated by synonymous substitution rates, indicating that Oryza rufipogon and Oryza sativa ssp. japonica follow an adaptive evolutionary pattern; whereas Oryza nivara and Oryza sativa ssp. indica demonstrate a conserved evolutionary pattern. A comprehensive analysis of tissue-specific expression of DHN genes in japonica and their expression profiles in normal and PEG (poly ethylene glycol)-induced dehydration stress exhibited a spatiotemporal expression pattern. Their interaction network reflects the cross-talk between gene expression and the physiological processes mediating adaptation to dehydration stress. The results obtained strongly indicated the importance of DHNs, as they are conserved during the course of domestication.
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170
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The disadvantages of being a hybrid during drought: A combined analysis of plant morphology, physiology and leaf proteome in maize. PLoS One 2017; 12:e0176121. [PMID: 28419152 PMCID: PMC5395237 DOI: 10.1371/journal.pone.0176121] [Citation(s) in RCA: 21] [Impact Index Per Article: 3.0] [Reference Citation Analysis] [Abstract] [Track Full Text] [Download PDF] [Figures] [Journal Information] [Subscribe] [Scholar Register] [Received: 01/02/2017] [Accepted: 04/05/2017] [Indexed: 12/02/2022] Open
Abstract
A comparative analysis of various parameters that characterize plant morphology, growth, water status, photosynthesis, cell damage, and antioxidative and osmoprotective systems together with an iTRAQ analysis of the leaf proteome was performed in two inbred lines of maize (Zea mays L.) differing in drought susceptibility and their reciprocal F1 hybrids. The aim of this study was to dissect the parent-hybrid relationships to better understand the mechanisms of the heterotic effect and its potential association with the stress response. The results clearly showed that the four examined genotypes have completely different strategies for coping with limited water availability and that the inherent properties of the F1 hybrids, i.e. positive heterosis in morphological parameters (or, more generally, a larger plant body) becomes a distinct disadvantage when the water supply is limited. However, although a greater loss of photosynthetic efficiency was an inherent disadvantage, the precise causes and consequences of the original predisposition towards faster growth and biomass accumulation differed even between reciprocal hybrids. Both maternal and paternal parents could be imitated by their progeny in some aspects of the drought response (e.g., the absence of general protein down-regulation, changes in the levels of some carbon fixation or other photosynthetic proteins). Nevertheless, other features (e.g., dehydrin or light-harvesting protein contents, reduced chloroplast proteosynthesis) were quite unique to a particular hybrid. Our study also confirmed that the strategy for leaving stomata open even when the water supply is limited (coupled to a smaller body size and some other physiological properties), observed in one of our inbred lines, is associated with drought-resistance not only during mild drought (as we showed previously) but also during more severe drought conditions.
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171
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Rakhra G, Kaur T, Vyas D, Sharma AD, Singh J, Ram G. Molecular cloning, characterization, heterologous expression and in-silico analysis of disordered boiling soluble stress-responsive wBsSRP protein from drought tolerant wheat cv.PBW 175. PLANT PHYSIOLOGY AND BIOCHEMISTRY : PPB 2017; 112:29-44. [PMID: 28033539 DOI: 10.1016/j.plaphy.2016.12.017] [Citation(s) in RCA: 3] [Impact Index Per Article: 0.4] [Reference Citation Analysis] [Abstract] [Key Words] [MESH Headings] [Track Full Text] [Subscribe] [Scholar Register] [Received: 12/18/2016] [Accepted: 12/19/2016] [Indexed: 05/06/2023]
Abstract
The structural and physico-chemical properties that account for the multi-functionality of dehydrins remain largely unknown. In this study, we identified, sequenced and cloned a stress regulated cDNA encoding a dehydrin-like boiling stable protein (designated as wBsSRP; wheat boiling stable stress responsive protein) from drought stressed seedlings of drought tolerant cultivar of wheat (PBW 175). qRT-PCR analysis documented high transcripts levels of wBsSRP during drought and cold conditions in the tolerant cv. PBW 175 as a part of adaptive response to stress while the levels were significantly lower in the sensitive cv. PBW 343. We also describe in-silico characterization and molecular modeling of wBsSRP through homology search, motif analysis, secondary structure prediction, active site prediction and 3D structure analysis. The physico-chemical properties and theoretical data of wBsSRP depicts that it is a canonical group 2 LEA protein. The recombinant wBsSRP protein when expressed in E. coli detected a specific differential band (∼11 kDa) on SDS- PAGE after IPTG induction. The functional analysis of wBsSRP in E. coli revealed that wBsSRP is essential for the survival of E. coli as well as for maintaining bacterial growth under various stress conditions. In vitro peroxidase protection assay during heat stress (50 and 100 °C) showed that in the presence of wBsSRP, peroxidase activity was significantly retained and/or increased. Based upon the findings, it is suggested that wBsSRP accentuated the effects of stress by acting as a protectant and by the stabilization of membranes, thereby contributing to the improved stress tolerance of the recombinant E. coli under various abiotic stress conditions. We suggest that these findings might provide the rationale for the mechanism of how these proteins obviate the adverse effects of dehydration stress.
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MESH Headings
- Adaptation, Physiological
- Algorithms
- Amino Acid Sequence
- Catalytic Domain
- Cloning, Molecular
- Computer Simulation
- Droughts
- Electrophoresis, Polyacrylamide Gel
- Escherichia coli/metabolism
- Gene Expression
- Gene Expression Regulation, Plant
- Genes, Plant
- Hot Temperature
- Models, Molecular
- Peroxidase/metabolism
- Plant Proteins/chemistry
- Plant Proteins/metabolism
- Protein Interaction Mapping
- Real-Time Polymerase Chain Reaction
- Recombination, Genetic/genetics
- Reproducibility of Results
- Sequence Analysis, Protein
- Solubility
- Spectrometry, Mass, Matrix-Assisted Laser Desorption-Ionization
- Stress, Physiological
- Triticum/physiology
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Affiliation(s)
- Gurmeen Rakhra
- PG Department of Biotechnology, Lyallpur Khalsa College, G.T. Road, Jalandhar 144001, Punjab, India
| | - Tarandeep Kaur
- Biodiversity and Applied Botany Division, Indian Institute of Integrative Medicine (CSIR), Canal Road, Jammu 180001, India
| | - Dhiraj Vyas
- Biodiversity and Applied Botany Division, Indian Institute of Integrative Medicine (CSIR), Canal Road, Jammu 180001, India
| | - Arun Dev Sharma
- PG Department of Biotechnology, Lyallpur Khalsa College, G.T. Road, Jalandhar 144001, Punjab, India.
| | - Jatinder Singh
- Department of Molecular Biology and Biochemistry, Guru Nanak Dev University, Amritsar, India
| | - Gobind Ram
- PG Department of Biotechnology, Lyallpur Khalsa College, G.T. Road, Jalandhar 144001, Punjab, India
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172
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Tyagi W, Rai M. Root transcriptomes of two acidic soil adapted Indica rice genotypes suggest diverse and complex mechanism of low phosphorus tolerance. PROTOPLASMA 2017; 254:725-736. [PMID: 27228993 DOI: 10.1007/s00709-016-0986-7] [Citation(s) in RCA: 8] [Impact Index Per Article: 1.1] [Reference Citation Analysis] [Abstract] [Key Words] [MESH Headings] [Track Full Text] [Subscribe] [Scholar Register] [Received: 12/24/2015] [Accepted: 05/13/2016] [Indexed: 06/05/2023]
Abstract
Low phosphorus (P) tolerance in rice is a biologically and agronomically important character. Low P tolerant Indica-type rice genotypes, Sahbhagi Dhan (SD) and Chakhao Poreiton (CP), are adapted to acidic soils and show variable response to low P levels. Using RNAseq approach, transcriptome data was generated from roots of SD and CP after 15 days of low P treatment to understand differences and similarities at molecular level. In response to low P, number of genes up-regulated (1318) was more when compared with down-regulated genes (761). Eight hundred twenty-one genes found to be significantly regulated between SD and CP in response to low P. De novo assembly using plant database led to further identification of 1535 novel transcripts. Functional annotation of significantly expressed genes suggests two distinct methods of low P tolerance. While root system architecture in SD works through serine-threonine kinase PSTOL1, suberin-mediated cell wall modification seems to be key in CP. The transcription data indicated that CP relies more on releasing its internally bound Pi and coping with low P levels by transcriptional and translational modifications and using dehydration response-based signals. Role of P transporters seems to be vital in response to low P in CP while sugar- and auxin-mediated pathway seems to be preferred in SD. At least six small RNA clusters overlap with transcripts highly expressed under low P, suggesting role of RNA super clusters in nutrient response in plants. These results help us to understand and thereby devise better strategy to enhance low P tolerance in Indica-type rice.
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Affiliation(s)
- Wricha Tyagi
- School of Crop Improvement, College of Post-Graduate Studies, Central Agricultural University (Imphal), Umroi Road, Umiam, Meghalaya, 793103, India.
| | - Mayank Rai
- School of Crop Improvement, College of Post-Graduate Studies, Central Agricultural University (Imphal), Umroi Road, Umiam, Meghalaya, 793103, India
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173
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Agarwal T, Upadhyaya G, Halder T, Mukherjee A, Majumder AL, Ray S. Different dehydrins perform separate functions in Physcomitrella patens. PLANTA 2017; 245:101-118. [PMID: 27638172 DOI: 10.1007/s00425-016-2596-1] [Citation(s) in RCA: 7] [Impact Index Per Article: 1.0] [Reference Citation Analysis] [Abstract] [Key Words] [MESH Headings] [Track Full Text] [Subscribe] [Scholar Register] [Received: 05/18/2016] [Accepted: 09/08/2016] [Indexed: 05/06/2023]
Abstract
Dehydrins, PpDHNA and PpDHNB from Physcomitrella patens provide drought and cold tolerance while PpDHNC shows antimicrobial property suggesting different dehydrins perform separate functions in P. patens. The moss Physcomitrella patens can withstand extremes of environmental condition including abiotic stress such as dehydration, salinity, low temperature and biotic stress such as pathogen attack. Osmotic stress is inflicted under both cold and drought stress conditions where dehydrins have been found to play a significant protective role. In this study, a comparative analysis was drawn for the three dehydrins PpDHNA, PpDHNB and PpDHNC from P. patens. Our data shows that PpDHNA and PpDHNB play a major role in cellular protection during osmotic stress. PpDHNB showed several fold upregulation of the gene when P. patens was subjected to cold and osmotic stress in combination. PpDHNA and PpDHNB provide protection to enzyme lactate dehydrogenase under osmotic as well as freezing conditions. PpDHNC possesses antibacterial activity and thus may have a role in biotic stress response. Overexpression of PpDHNA, PpDHNB and PpDHNC in transgenic tobacco showed a better performance for PpDHNB with respect to cold and osmotic stress. These results suggest that specific dehydrins contribute to tolerance of mosses under different stress conditions.
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Affiliation(s)
- Tanushree Agarwal
- Department of Botany, Centre of Advanced Study, University of Calcutta, 35 Ballygunge Circular Road, Kolkata, 700019, India
| | - Gouranga Upadhyaya
- Department of Botany, Centre of Advanced Study, University of Calcutta, 35 Ballygunge Circular Road, Kolkata, 700019, India
| | - Tanmoy Halder
- Department of Botany, Centre of Advanced Study, University of Calcutta, 35 Ballygunge Circular Road, Kolkata, 700019, India
| | - Abhishek Mukherjee
- Division of Plant Biology, Bose Institute, P1/12 CIT Scheme VII M, Kolkata, 700054, India
| | - Arun Lahiri Majumder
- Division of Plant Biology, Bose Institute, P1/12 CIT Scheme VII M, Kolkata, 700054, India
| | - Sudipta Ray
- Department of Botany, Centre of Advanced Study, University of Calcutta, 35 Ballygunge Circular Road, Kolkata, 700019, India.
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174
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Cao Y, Xiang X, Geng M, You Q, Huang X. Effect of HbDHN1 and HbDHN2 Genes on Abiotic Stress Responses in Arabidopsis. FRONTIERS IN PLANT SCIENCE 2017; 8:470. [PMID: 28443102 PMCID: PMC5385384 DOI: 10.3389/fpls.2017.00470] [Citation(s) in RCA: 11] [Impact Index Per Article: 1.6] [Reference Citation Analysis] [Abstract] [Key Words] [Track Full Text] [Subscribe] [Scholar Register] [Received: 11/26/2016] [Accepted: 03/17/2017] [Indexed: 05/04/2023]
Abstract
Dehydrin is a type of late embryogenesis abundant (LEA) protein. The dehydrin genes, HbDHN1 and HbDHN2, in Hevea brasiliensis were previously found to be induced at the wounding site of epicormic shoots, with local tissue dehydration identified as the key signal for laticifer differentiation. However, the exact role of the HbDHNs remains unknown. In this study, HbDHN1 and HbDHN2 expression was examined under multiple abiotic stresses; namely, cold, salt, drought, wounding, abscisic acid (ABA), ethylene (ET), and jasmonic acid (JA) treatment. Although, both HbDHNs were defined as SK2-type dehydrin, they showed different cellular localizations. Overexpression of the HbDHNs in Arabidopsis thaliana further revealed a significant increase in tolerance to salt, drought and osmotic stresses. Increased accumulation of proline and a reduction in electrolyte leakage were also observed under salt and drought stress, and a higher water content was indicated under osmotic stress. The transgenic plants also showed higher activity levels of ascorbate peroxidase (APX), superoxide dismutase (SOD) and catalase, and accumulated less hydrogen peroxide (H2O2) and superoxide ([Formula: see text]). Given that reactive oxygen species (ROS) are thought to be a key signal for laticifer differentiation, these findings suggest that HbDHNs act as ROS scavengers, directly or indirectly affecting laticifer differentiation. Both HbDHNs therefore influence physiological processes, improving plant tolerance to multiple abiotic stresses.
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175
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Jha UC, Bohra A, Jha R. Breeding approaches and genomics technologies to increase crop yield under low-temperature stress. PLANT CELL REPORTS 2017; 36:1-35. [PMID: 27878342 DOI: 10.1007/s00299-016-2073-0] [Citation(s) in RCA: 33] [Impact Index Per Article: 4.7] [Reference Citation Analysis] [Abstract] [Key Words] [MESH Headings] [Track Full Text] [Subscribe] [Scholar Register] [Received: 09/12/2016] [Accepted: 11/04/2016] [Indexed: 05/11/2023]
Abstract
Improved knowledge about plant cold stress tolerance offered by modern omics technologies will greatly inform future crop improvement strategies that aim to breed cultivars yielding substantially high under low-temperature conditions. Alarmingly rising temperature extremities present a substantial impediment to the projected target of 70% more food production by 2050. Low-temperature (LT) stress severely constrains crop production worldwide, thereby demanding an urgent yet sustainable solution. Considerable research progress has been achieved on this front. Here, we review the crucial cellular and metabolic alterations in plants that follow LT stress along with the signal transduction and the regulatory network describing the plant cold tolerance. The significance of plant genetic resources to expand the genetic base of breeding programmes with regard to cold tolerance is highlighted. Also, the genetic architecture of cold tolerance trait as elucidated by conventional QTL mapping and genome-wide association mapping is described. Further, global expression profiling techniques including RNA-Seq along with diverse omics platforms are briefly discussed to better understand the underlying mechanism and prioritize the candidate gene (s) for downstream applications. These latest additions to breeders' toolbox hold immense potential to support plant breeding schemes that seek development of LT-tolerant cultivars. High-yielding cultivars endowed with greater cold tolerance are urgently required to sustain the crop yield under conditions severely challenged by low-temperature.
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Affiliation(s)
- Uday Chand Jha
- Indian Institute of Pulses Research, Kanpur, 208024, India.
| | - Abhishek Bohra
- Indian Institute of Pulses Research, Kanpur, 208024, India.
| | - Rintu Jha
- Indian Institute of Pulses Research, Kanpur, 208024, India
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176
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Hanin M, Ebel C, Ngom M, Laplaze L, Masmoudi K. New Insights on Plant Salt Tolerance Mechanisms and Their Potential Use for Breeding. FRONTIERS IN PLANT SCIENCE 2016; 7:1787. [PMID: 27965692 PMCID: PMC5126725 DOI: 10.3389/fpls.2016.01787] [Citation(s) in RCA: 284] [Impact Index Per Article: 35.5] [Reference Citation Analysis] [Abstract] [Key Words] [Track Full Text] [Subscribe] [Scholar Register] [Received: 05/15/2016] [Accepted: 11/14/2016] [Indexed: 05/18/2023]
Abstract
Soil salinization is a major threat to agriculture in arid and semi-arid regions, where water scarcity and inadequate drainage of irrigated lands severely reduce crop yield. Salt accumulation inhibits plant growth and reduces the ability to uptake water and nutrients, leading to osmotic or water-deficit stress. Salt is also causing injury of the young photosynthetic leaves and acceleration of their senescence, as the Na+ cation is toxic when accumulating in cell cytosol resulting in ionic imbalance and toxicity of transpiring leaves. To cope with salt stress, plants have evolved mainly two types of tolerance mechanisms based on either limiting the entry of salt by the roots, or controlling its concentration and distribution. Understanding the overall control of Na+ accumulation and functional studies of genes involved in transport processes, will provide a new opportunity to improve the salinity tolerance of plants relevant to food security in arid regions. A better understanding of these tolerance mechanisms can be used to breed crops with improved yield performance under salinity stress. Moreover, associations of cultures with nitrogen-fixing bacteria and arbuscular mycorrhizal fungi could serve as an alternative and sustainable strategy to increase crop yields in salt-affected fields.
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Affiliation(s)
- Moez Hanin
- Laboratoire de Biotechnologie et Amélioration des Plantes, Centre de Biotechnologie de SfaxSfax, Tunisia
- Institut Supérieur de Biotechnologie, Université de SfaxSfax, Tunisia
| | - Chantal Ebel
- Laboratoire de Biotechnologie et Amélioration des Plantes, Centre de Biotechnologie de SfaxSfax, Tunisia
- Institut Supérieur de Biotechnologie, Université de SfaxSfax, Tunisia
| | - Mariama Ngom
- Laboratoire mixte international Adaptation des Plantes et microorganismes associés aux Stress EnvironnementauxDakar, Senegal
- Laboratoire Commun de Microbiologie, Institut de Recherche pour le Développement/Institut Sénégalais de Recherches Agricoles/Université Cheikh Anta DiopDakar, Senegal
| | - Laurent Laplaze
- Laboratoire mixte international Adaptation des Plantes et microorganismes associés aux Stress EnvironnementauxDakar, Senegal
- Laboratoire Commun de Microbiologie, Institut de Recherche pour le Développement/Institut Sénégalais de Recherches Agricoles/Université Cheikh Anta DiopDakar, Senegal
- Institut de Recherche pour le Développement, Unités Mixtes de Recherche, Diversité, Adaptation, Développement des Plantes (DIADE), MontpellierFrance
| | - Khaled Masmoudi
- Department of Aridland, College of Food and Agriculture, United Arab Emirates UniversityAl Ain, UAE
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177
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Drira M, Hanin M, Masmoudi K, Brini F. Comparison of full-length and conserved segments of wheat dehydrin DHN-5 overexpressed in Arabidopsis thaliana showed different responses to abiotic and biotic stress. FUNCTIONAL PLANT BIOLOGY : FPB 2016; 43:1048-1060. [PMID: 32480525 DOI: 10.1071/fp16134] [Citation(s) in RCA: 10] [Impact Index Per Article: 1.3] [Reference Citation Analysis] [Abstract] [Track Full Text] [Subscribe] [Scholar Register] [Received: 04/08/2016] [Accepted: 07/06/2016] [Indexed: 05/20/2023]
Abstract
Dehydrins (DHNs) are among the most common proteins accumulated in plants under water-related stress. They typically contain at least three conserved sequences designated as the Y-, S- and K-segments. The present work aims to highlight the role of the K-segments in plant tolerance to biotic and abiotic stresses. For this purpose, transgenic Arabidopsis thaliana (L.) Heyhn. lines expressing distinct wheat (Triticum aestivum L.) DHN-5 truncated constructs with or without the K-segments were generated. Our results showed that unlike the derivative lacking a K-segment, constructs containing only one or two K-segments enhanced the tolerance of A. thaliana to diverse stresses and were similar to the full-length wheat DHN-5. Moreover, compared with the wild-type and the YS form, the transgenic plants overexpressing wheat DHN-5 with K-segments maintained higher superoxide dismutase, catalase and peroxide dismutase enzymatic activity, and accumulated lower levels of H2O2 and malondialdehyde. In addition, we demonstrated that lines like A. thaliana overexpressing wheat DHN-5 showed increased resistance to fungal infections caused by Botrytis cinerea and Alternaria solani. Finally, the overexpression of the different forms of wheat DHN-5 led to the regulation of the expression of several genes involved in the jasmonic acid signalling pathway.
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Affiliation(s)
- Marwa Drira
- Biotechnology and Plant Improvement Laboratory, Centre of Biotechnology of Sfax, University of Sfax, BP 1177, 3018, Sfax, Tunisia
| | - Moez Hanin
- Biotechnology and Plant Improvement Laboratory, Centre of Biotechnology of Sfax, University of Sfax, BP 1177, 3018, Sfax, Tunisia
| | - Khaled Masmoudi
- Biotechnology and Plant Improvement Laboratory, Centre of Biotechnology of Sfax, University of Sfax, BP 1177, 3018, Sfax, Tunisia
| | - Faiçal Brini
- Biotechnology and Plant Improvement Laboratory, Centre of Biotechnology of Sfax, University of Sfax, BP 1177, 3018, Sfax, Tunisia
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178
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Shakirova F, Allagulova C, Maslennikova D, Fedorova K, Yuldashev R, Lubyanova A, Bezrukova M, Avalbaev A. Involvement of dehydrins in 24-epibrassinolide-induced protection of wheat plants against drought stress. PLANT PHYSIOLOGY AND BIOCHEMISTRY : PPB 2016; 108:539-548. [PMID: 27611241 DOI: 10.1016/j.plaphy.2016.07.013] [Citation(s) in RCA: 17] [Impact Index Per Article: 2.1] [Reference Citation Analysis] [Abstract] [Key Words] [MESH Headings] [Track Full Text] [Subscribe] [Scholar Register] [Received: 05/13/2016] [Revised: 07/06/2016] [Accepted: 07/11/2016] [Indexed: 05/01/2023]
Abstract
In this study, we performed a comparative analysis of the physiological and biochemical parameters of wheat cultivars with contrasting drought resistance, drought-resistant Omskaya 35 (O-35) and less drought-resistant Salavat Yulaev (SYu), during 7-day germination under drought stress simulated by 5% mannitol. In addition, we evaluated the effectiveness of pre-sowing seed treatment with 0.4 μM 24-epibrassinolide (EBR) used to increase the resistance of plants of both cultivars to drought stress. It was revealed that mannitol has caused significant changes in the hormonal balance of the plants of both cultivars, associated with abscisic acid (ABA) accumulation and decrease in the contents of indoleacetic acid (IAA) and cytokinins (CKs). It should be noted that more dramatic changes in the content of phytohormones were characteristic for seedlings of SYu cultivar, which was reflected in a stronger growth inhibition of these plants. Pretreatment with EBR mitigated the negative effect of drought on the hormonal status and growth of seedlings during their germination. Furthermore, we found that drought caused accumulation of dehydrin (DHN) proteins, especially of low molecular weight DHNs, whose abundance was 2.5 times greater in O-35 cultivar than in SYu plants. EBR-pretreated plants of both cultivars were characterized by the additional accumulation of DHNs, indicating their involvement in the development of the EBR-induced wheat drought resistance. The use of fluridone allowed us to demonstrate ABA-dependent and ABA-independent pathways of regulation of low molecular mass dehydrins accumulation by EBR in wheat plants of both cultivars under drought conditions.
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Affiliation(s)
- Farida Shakirova
- Institute of Biochemistry and Genetics, Ufa Scientific Centre, Russian Academy of Sciences, pr. Octyabrya 71, Ufa, 450054, Russia.
| | - Chulpan Allagulova
- Institute of Biochemistry and Genetics, Ufa Scientific Centre, Russian Academy of Sciences, pr. Octyabrya 71, Ufa, 450054, Russia
| | - Dilara Maslennikova
- Institute of Biochemistry and Genetics, Ufa Scientific Centre, Russian Academy of Sciences, pr. Octyabrya 71, Ufa, 450054, Russia
| | - Kristina Fedorova
- Institute of Biochemistry and Genetics, Ufa Scientific Centre, Russian Academy of Sciences, pr. Octyabrya 71, Ufa, 450054, Russia
| | - Ruslan Yuldashev
- Institute of Biochemistry and Genetics, Ufa Scientific Centre, Russian Academy of Sciences, pr. Octyabrya 71, Ufa, 450054, Russia
| | - Alsu Lubyanova
- Institute of Biochemistry and Genetics, Ufa Scientific Centre, Russian Academy of Sciences, pr. Octyabrya 71, Ufa, 450054, Russia
| | - Marina Bezrukova
- Institute of Biochemistry and Genetics, Ufa Scientific Centre, Russian Academy of Sciences, pr. Octyabrya 71, Ufa, 450054, Russia
| | - Azamat Avalbaev
- Institute of Biochemistry and Genetics, Ufa Scientific Centre, Russian Academy of Sciences, pr. Octyabrya 71, Ufa, 450054, Russia
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179
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Massange-Sánchez JA, Palmeros-Suárez PA, Espitia-Rangel E, Rodríguez-Arévalo I, Sánchez-Segura L, Martínez-Gallardo NA, Alatorre-Cobos F, Tiessen A, Délano-Frier JP. Overexpression of Grain Amaranth (Amaranthus hypochondriacus) AhERF or AhDOF Transcription Factors in Arabidopsis thaliana Increases Water Deficit- and Salt-Stress Tolerance, Respectively, via Contrasting Stress-Amelioration Mechanisms. PLoS One 2016; 11:e0164280. [PMID: 27749893 PMCID: PMC5066980 DOI: 10.1371/journal.pone.0164280] [Citation(s) in RCA: 32] [Impact Index Per Article: 4.0] [Reference Citation Analysis] [Abstract] [MESH Headings] [Grants] [Track Full Text] [Download PDF] [Figures] [Journal Information] [Subscribe] [Scholar Register] [Received: 06/10/2016] [Accepted: 09/22/2016] [Indexed: 11/19/2022] Open
Abstract
Two grain amaranth transcription factor (TF) genes were overexpressed in Arabidopsis plants. The first, coding for a group VII ethylene response factor TF (i.e., AhERF-VII) conferred tolerance to water-deficit stress (WS) in transgenic Arabidopsis without affecting vegetative or reproductive growth. A significantly lower water-loss rate in detached leaves coupled to a reduced stomatal opening in leaves of plants subjected to WS was associated with this trait. WS tolerance was also associated with an increased antioxidant enzyme activity and the accumulation of putative stress-related secondary metabolites. However, microarray and GO data did not indicate an obvious correlation between WS tolerance, stomatal closure, and abscisic acid (ABA)-related signaling. This scenario suggested that stomatal closure during WS in these plants involved ABA-independent mechanisms, possibly involving reactive oxygen species (ROS). WS tolerance may have also involved other protective processes, such as those employed for methyl glyoxal detoxification. The second, coding for a class A and cluster I DNA binding with one finger TF (i.e., AhDof-AI) provided salt-stress (SS) tolerance with no evident fitness penalties. The lack of an obvious development-related phenotype contrasted with microarray and GO data showing an enrichment of categories and genes related to developmental processes, particularly flowering. SS tolerance also correlated with increased superoxide dismutase activity but not with augmented stomatal closure. Additionally, microarray and GO data indicated that, contrary to AhERF-VII, SS tolerance conferred by AhDof-AI in Arabidopsis involved ABA-dependent and ABA-independent stress amelioration mechanisms.
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Affiliation(s)
- Julio A. Massange-Sánchez
- Centro de Investigación y de Estudios Avanzados del I. P. N., Unidad Irapuato, Km 9.6 del Libramiento Norte Carretera Irapuato-León, C.P. 36821, Irapuato, Gto., México
| | - Paola A. Palmeros-Suárez
- Laboratorio de Biología Molecular, Instituto Tecnológico de Tlajomulco, Jalisco, km 10 Carretera a San Miguel Cuyutlán, CP 45640 Tlajomulco de Zúñiga, Jalisco, Mexico
| | - Eduardo Espitia-Rangel
- Instituto Nacional de Investigaciones Forestales, Agrícolas y Pecuarias, Km 13.5 Carrretera Los Reyes-Texcoco, C.P. 56250, Coatlinchán Texcoco, Estado de México, México
| | - Isaac Rodríguez-Arévalo
- Laboratorio Nacional de Genómica para la Biodiversidad, Cinvestav Irapuato, Km 9.6 del Libramiento Norte Carretera Irapuato-León, CP 36821, Irapuato, Gto., Mexico
| | - Lino Sánchez-Segura
- Centro de Investigación y de Estudios Avanzados del I. P. N., Unidad Irapuato, Km 9.6 del Libramiento Norte Carretera Irapuato-León, C.P. 36821, Irapuato, Gto., México
| | - Norma A. Martínez-Gallardo
- Centro de Investigación y de Estudios Avanzados del I. P. N., Unidad Irapuato, Km 9.6 del Libramiento Norte Carretera Irapuato-León, C.P. 36821, Irapuato, Gto., México
| | - Fulgencio Alatorre-Cobos
- Conacyt Research Fellow-Colegio de Postgraduados, Campus Campeche. Carretera Haltunchen-Edzna Km 17.5, Sihochac, Champoton, 24450, Campeche, México
| | - Axel Tiessen
- Centro de Investigación y de Estudios Avanzados del I. P. N., Unidad Irapuato, Km 9.6 del Libramiento Norte Carretera Irapuato-León, C.P. 36821, Irapuato, Gto., México
| | - John P. Délano-Frier
- Centro de Investigación y de Estudios Avanzados del I. P. N., Unidad Irapuato, Km 9.6 del Libramiento Norte Carretera Irapuato-León, C.P. 36821, Irapuato, Gto., México
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180
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Kovi MR, Ergon Å, Rognli OA. Freezing tolerance revisited-effects of variable temperatures on gene regulation in temperate grasses and legumes. CURRENT OPINION IN PLANT BIOLOGY 2016; 33:140-146. [PMID: 27479037 DOI: 10.1016/j.pbi.2016.07.006] [Citation(s) in RCA: 20] [Impact Index Per Article: 2.5] [Reference Citation Analysis] [Abstract] [MESH Headings] [Track Full Text] [Subscribe] [Scholar Register] [Received: 06/17/2016] [Revised: 07/13/2016] [Accepted: 07/14/2016] [Indexed: 05/11/2023]
Abstract
Climate change creates new patterns of seasonal climate variation with higher temperatures, longer growth seasons and more variable winter climates. This is challenging the winter survival of perennial herbaceous plants. In this review, we focus on the effects of variable temperatures during autumn/winter/spring, and its interactions with light, on the development and maintenance of freezing tolerance. Cold temperatures induce changes at several organizational levels in the plant (cold acclimation), leading to the development of freezing tolerance, which can be reduced/lost during warm spells (deacclimation) in winters, and attained again during cold spells (reacclimation). We summarize how temperature interacts with components of the light regime (photoperiod, PSII excitation pressure, irradiance, and light quality) in determining changes in the transcriptome, proteome and metabolome.
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Affiliation(s)
- Mallikarjuna Rao Kovi
- Department of Plant Sciences, Norwegian University of Life Sciences, NO-1432 Ås, Norway
| | - Åshild Ergon
- Department of Plant Sciences, Norwegian University of Life Sciences, NO-1432 Ås, Norway
| | - Odd Arne Rognli
- Department of Plant Sciences, Norwegian University of Life Sciences, NO-1432 Ås, Norway.
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181
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Hristozova N, Tompa P, Kovacs D. A Novel Method for Assessing the Chaperone Activity of Proteins. PLoS One 2016; 11:e0161970. [PMID: 27564234 PMCID: PMC5001627 DOI: 10.1371/journal.pone.0161970] [Citation(s) in RCA: 14] [Impact Index Per Article: 1.8] [Reference Citation Analysis] [Abstract] [MESH Headings] [Grants] [Track Full Text] [Download PDF] [Figures] [Journal Information] [Subscribe] [Scholar Register] [Received: 05/30/2016] [Accepted: 08/15/2016] [Indexed: 12/02/2022] Open
Abstract
Protein chaperones are molecular machines which function both during homeostasis and stress conditions in all living organisms. Depending on their specific function, molecular chaperones are involved in a plethora of cellular processes by playing key roles in nascent protein chain folding, transport and quality control. Among stress protein families-molecules expressed during adverse conditions, infection, and diseases-chaperones are highly abundant. Their molecular functions range from stabilizing stress-susceptible molecules and membranes to assisting the refolding of stress-damaged proteins, thereby acting as protective barriers against cellular damage. Here we propose a novel technique to test and measure the capability for protective activity of known and putative chaperones in a semi-high throughput manner on a plate reader. The current state of the art does not allow the in vitro measurements of chaperone activity in a highly parallel manner with high accuracy or high reproducibility, thus we believe that the method we report will be of significant benefit in this direction. The use of this method may lead to a considerable increase in the number of experimentally verified proteins with such functions, and may also allow the dissection of their molecular mechanism for a better understanding of their function.
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Affiliation(s)
- Nevena Hristozova
- Structural Biology Department, Flemish Institute of Biotechnology, Brussels, Belgium
- Structural Biology Department, Free University Brussels, Brussels, Belgium
| | - Peter Tompa
- Structural Biology Department, Flemish Institute of Biotechnology, Brussels, Belgium
- Structural Biology Department, Free University Brussels, Brussels, Belgium
- Institute of Enzymology, Hungarian Academy of Sciences, Budapest, Hungary
| | - Denes Kovacs
- Structural Biology Department, Flemish Institute of Biotechnology, Brussels, Belgium
- Structural Biology Department, Free University Brussels, Brussels, Belgium
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182
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Singh VK, Mishra A, Haque I, Jha B. A novel transcription factor-like gene SbSDR1 acts as a molecular switch and confers salt and osmotic endurance to transgenic tobacco. Sci Rep 2016; 6:31686. [PMID: 27550641 PMCID: PMC4994045 DOI: 10.1038/srep31686] [Citation(s) in RCA: 36] [Impact Index Per Article: 4.5] [Reference Citation Analysis] [Abstract] [MESH Headings] [Track Full Text] [Download PDF] [Figures] [Journal Information] [Subscribe] [Scholar Register] [Received: 03/23/2016] [Accepted: 07/26/2016] [Indexed: 12/21/2022] Open
Abstract
A salt- and drought-responsive novel gene SbSDR1 is predominantly localised to the nucleus, up-regulated under abiotic stresses and is involved in the regulation of metabolic processes. SbSDR1 showed DNA-binding activity to genomic DNA, microarray analysis revealed the upregulation of host stress-responsive genes and the results suggest that SbSDR1 acts as a transcription factor. Overexpression of SbSDR1 did not affect the growth and yield of transgenic plants in non-stress conditions. Moreover, the overexpression of SbSDR1 stimulates the growth of plants and enhances their physiological status by modulating the physiology and inhibiting the accumulation of reactive oxygen species under salt and osmotic stress. Transgenic plants that overexpressed SbSDR1 had a higher relative water content, membrane integrity and concentration of proline and total soluble sugars, whereas they showed less electrolyte leakage and lipid peroxidation than wild type plants under stress conditions. In field conditions, SbSDR1 plants recovered from stress-induced injuries and could complete their life cycle. This study suggests that SbSDR1 functions as a molecular switch and contributes to salt and osmotic tolerance at different growth stages. Overall, SbSDR1 is a potential candidate to be used for engineering salt and drought tolerance in crops without adverse effects on growth and yield.
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Affiliation(s)
- Vijay Kumar Singh
- Division of Marine Biotechnology and Ecology, CSIR-Central Salt and Marine Chemicals Research Institute, G. B. Marg, Bhavnagar (Gujarat), India
| | - Avinash Mishra
- Division of Marine Biotechnology and Ecology, CSIR-Central Salt and Marine Chemicals Research Institute, G. B. Marg, Bhavnagar (Gujarat), India
| | - Intesaful Haque
- Division of Marine Biotechnology and Ecology, CSIR-Central Salt and Marine Chemicals Research Institute, G. B. Marg, Bhavnagar (Gujarat), India
| | - Bhavanath Jha
- Division of Marine Biotechnology and Ecology, CSIR-Central Salt and Marine Chemicals Research Institute, G. B. Marg, Bhavnagar (Gujarat), India
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183
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Singh VK, Mishra A, Haque I, Jha B. A novel transcription factor-like gene SbSDR1 acts as a molecular switch and confers salt and osmotic endurance to transgenic tobacco. Sci Rep 2016. [PMID: 27550641 DOI: 10.1038/srep3168] [Citation(s) in RCA: 2] [Impact Index Per Article: 0.3] [Reference Citation Analysis] [Abstract] [MESH Headings] [Journal Information] [Subscribe] [Scholar Register] [Indexed: 05/16/2023] Open
Abstract
A salt- and drought-responsive novel gene SbSDR1 is predominantly localised to the nucleus, up-regulated under abiotic stresses and is involved in the regulation of metabolic processes. SbSDR1 showed DNA-binding activity to genomic DNA, microarray analysis revealed the upregulation of host stress-responsive genes and the results suggest that SbSDR1 acts as a transcription factor. Overexpression of SbSDR1 did not affect the growth and yield of transgenic plants in non-stress conditions. Moreover, the overexpression of SbSDR1 stimulates the growth of plants and enhances their physiological status by modulating the physiology and inhibiting the accumulation of reactive oxygen species under salt and osmotic stress. Transgenic plants that overexpressed SbSDR1 had a higher relative water content, membrane integrity and concentration of proline and total soluble sugars, whereas they showed less electrolyte leakage and lipid peroxidation than wild type plants under stress conditions. In field conditions, SbSDR1 plants recovered from stress-induced injuries and could complete their life cycle. This study suggests that SbSDR1 functions as a molecular switch and contributes to salt and osmotic tolerance at different growth stages. Overall, SbSDR1 is a potential candidate to be used for engineering salt and drought tolerance in crops without adverse effects on growth and yield.
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Affiliation(s)
- Vijay Kumar Singh
- Division of Marine Biotechnology and Ecology, CSIR-Central Salt and Marine Chemicals Research Institute, G. B. Marg, Bhavnagar (Gujarat), India
| | - Avinash Mishra
- Division of Marine Biotechnology and Ecology, CSIR-Central Salt and Marine Chemicals Research Institute, G. B. Marg, Bhavnagar (Gujarat), India
| | - Intesaful Haque
- Division of Marine Biotechnology and Ecology, CSIR-Central Salt and Marine Chemicals Research Institute, G. B. Marg, Bhavnagar (Gujarat), India
| | - Bhavanath Jha
- Division of Marine Biotechnology and Ecology, CSIR-Central Salt and Marine Chemicals Research Institute, G. B. Marg, Bhavnagar (Gujarat), India
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Khan A, Sovero V, Gemenet D. Genome-assisted Breeding For Drought Resistance. Curr Genomics 2016; 17:330-42. [PMID: 27499682 PMCID: PMC4955035 DOI: 10.2174/1389202917999160211101417] [Citation(s) in RCA: 18] [Impact Index Per Article: 2.3] [Reference Citation Analysis] [Abstract] [Key Words] [Track Full Text] [Download PDF] [Figures] [Journal Information] [Subscribe] [Scholar Register] [Received: 08/08/2015] [Revised: 09/17/2015] [Accepted: 09/19/2015] [Indexed: 11/30/2022] Open
Abstract
Drought stress caused by unpredictable precipitation poses a major threat to food production worldwide, and its impact is only expected to increase with the further onset of climate change. Understanding the effect of drought stress on crops and plants' response is critical for developing improved varieties with stable high yield to fill a growing food gap from an increasing population depending on decreasing land and water resources. When a plant encounters drought stress, it may use multiple response types, depending on environmental conditions, drought stress intensity and duration, and the physiological stage of the plant. Drought stress responses can be divided into four broad types: drought escape, drought avoidance, drought tolerance, and drought recovery, each characterized by interacting mechanisms, which may together be referred to as drought resistance mechanisms. The complex nature of drought resistance requires a multi-pronged approach to breed new varieties with stable and enhanced yield under drought stress conditions. High throughput genomics and phenomics allow marker-assisted selection (MAS) and genomic selection (GS), which offer rapid and targeted improvement of populations and identification of parents for rapid genetic gains and improved drought-resistant varieties. Using these approaches together with appropriate genetic diversity, databases, analytical tools, and well-characterized drought stress scenarios, weather and soil data, new varieties with improved drought resistance corresponding to grower preferences can be introduced into target regions rapidly.
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Affiliation(s)
- Awais Khan
- International Potato Center (CIP), Avenida La Molina 1895, Lima 12,Peru
| | - Valpuri Sovero
- International Potato Center (CIP), Avenida La Molina 1895, Lima 12,Peru
| | - Dorcus Gemenet
- International Potato Center (CIP), Avenida La Molina 1895, Lima 12,Peru
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185
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Li S, Geng F, Wang P, Lu J, Ma M. Proteome analysis of the almond kernel (Prunus dulcis). JOURNAL OF THE SCIENCE OF FOOD AND AGRICULTURE 2016; 96:3351-3357. [PMID: 26526192 DOI: 10.1002/jsfa.7514] [Citation(s) in RCA: 17] [Impact Index Per Article: 2.1] [Reference Citation Analysis] [Abstract] [Key Words] [MESH Headings] [Track Full Text] [Subscribe] [Scholar Register] [Received: 12/01/2014] [Revised: 10/27/2015] [Accepted: 10/27/2015] [Indexed: 06/05/2023]
Abstract
BACKGROUND Almond (Prunus dulcis) is a popular tree nut worldwide and offers many benefits to human health. However, the importance of almond kernel proteins in the nutrition and function in human health requires further evaluation. The present study presents a systematic evaluation of the proteins in the almond kernel using proteomic analysis. RESULTS The nutrient and amino acid content in almond kernels from Xinjiang is similar to that of American varieties; however, Xinjiang varieties have a higher protein content. Two-dimensional electrophoresis analysis demonstrated a wide distribution of molecular weights and isoelectric points of almond kernel proteins. A total of 434 proteins were identified by LC-MS/MS, and most were proteins that were experimentally confirmed for the first time. Gene ontology (GO) analysis of the 434 proteins indicated that proteins involved in primary biological processes including metabolic processes (67.5%), cellular processes (54.1%), and single-organism processes (43.4%), the main molecular function of almond kernel proteins are in catalytic activity (48.0%), binding (45.4%) and structural molecule activity (11.9%), and proteins are primarily distributed in cell (59.9%), organelle (44.9%), and membrane (22.8%). CONCLUSION Almond kernel is a source of a wide variety of proteins. This study provides important information contributing to the screening and identification of almond proteins, the understanding of almond protein function, and the development of almond protein products. © 2015 Society of Chemical Industry.
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Affiliation(s)
- Shugang Li
- National Research and Development Center for Egg Processing, College of Food Science and Technology, Huazhong Agricultural University, Wuhan, Hubei, 430070, P.R. China
- Construction Corps Key Laboratory of Deep Processing on Featured Agricultural Products in South Xinjiang, Tarim University, Alar, Xin Jiang, 843300, P.R. China
| | - Fang Geng
- National Research and Development Center for Egg Processing, College of Food Science and Technology, Huazhong Agricultural University, Wuhan, Hubei, 430070, P.R. China
| | - Ping Wang
- Construction Corps Key Laboratory of Deep Processing on Featured Agricultural Products in South Xinjiang, Tarim University, Alar, Xin Jiang, 843300, P.R. China
| | - Jiankang Lu
- Construction Corps Key Laboratory of Deep Processing on Featured Agricultural Products in South Xinjiang, Tarim University, Alar, Xin Jiang, 843300, P.R. China
| | - Meihu Ma
- National Research and Development Center for Egg Processing, College of Food Science and Technology, Huazhong Agricultural University, Wuhan, Hubei, 430070, P.R. China
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186
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Mosquera T, Alvarez MF, Jiménez-Gómez JM, Muktar MS, Paulo MJ, Steinemann S, Li J, Draffehn A, Hofmann A, Lübeck J, Strahwald J, Tacke E, Hofferbert HR, Walkemeier B, Gebhardt C. Targeted and Untargeted Approaches Unravel Novel Candidate Genes and Diagnostic SNPs for Quantitative Resistance of the Potato (Solanum tuberosum L.) to Phytophthora infestans Causing the Late Blight Disease. PLoS One 2016; 11:e0156254. [PMID: 27281327 PMCID: PMC4900573 DOI: 10.1371/journal.pone.0156254] [Citation(s) in RCA: 33] [Impact Index Per Article: 4.1] [Reference Citation Analysis] [Abstract] [MESH Headings] [Grants] [Track Full Text] [Download PDF] [Figures] [Journal Information] [Subscribe] [Scholar Register] [Received: 12/14/2015] [Accepted: 05/08/2016] [Indexed: 11/18/2022] Open
Abstract
The oomycete Phytophthora infestans causes late blight of potato, which can completely destroy the crop. Therefore, for the past 160 years, late blight has been the most important potato disease worldwide. The identification of cultivars with high and durable field resistance to P. infestans is an objective of most potato breeding programs. This type of resistance is polygenic and therefore quantitative. Its evaluation requires multi-year and location trials. Furthermore, quantitative resistance to late blight correlates with late plant maturity, a negative agricultural trait. Knowledge of the molecular genetic basis of quantitative resistance to late blight not compromised by late maturity is very limited. It is however essential for developing diagnostic DNA markers that facilitate the efficient combination of superior resistance alleles in improved cultivars. We used association genetics in a population of 184 tetraploid potato cultivars in order to identify single nucleotide polymorphisms (SNPs) that are associated with maturity corrected resistance (MCR) to late blight. The population was genotyped for almost 9000 SNPs from three different sources. The first source was candidate genes specifically selected for their function in the jasmonate pathway. The second source was novel candidate genes selected based on comparative transcript profiling (RNA-Seq) of groups of genotypes with contrasting levels of quantitative resistance to P. infestans. The third source was the first generation 8.3k SolCAP SNP genotyping array available in potato for genome wide association studies (GWAS). Twenty seven SNPs from all three sources showed robust association with MCR. Some of those were located in genes that are strong candidates for directly controlling quantitative resistance, based on functional annotation. Most important were: a lipoxygenase (jasmonate pathway), a 3-hydroxy-3-methylglutaryl coenzyme A reductase (mevalonate pathway), a P450 protein (terpene biosynthesis), a transcription factor and a homolog of a major gene for resistance to P. infestans from the wild potato species Solanum venturii. The candidate gene approach and GWAS complemented each other as they identified different genes. The results of this study provide new insight in the molecular genetic basis of quantitative resistance in potato and a toolbox of diagnostic SNP markers for breeding applications.
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Affiliation(s)
- Teresa Mosquera
- Department of Plant Breeding and Genetics, Max-Planck Institute for Plant Breeding Research, Cologne, Germany
- Faculty of Agricultural Sciences, Universidad Nacional de Colombia, Bogotá, Colombia
| | - Maria Fernanda Alvarez
- Department of Plant Breeding and Genetics, Max-Planck Institute for Plant Breeding Research, Cologne, Germany
- Faculty of Agricultural Sciences, Universidad Nacional de Colombia, Bogotá, Colombia
| | - José M. Jiménez-Gómez
- Department of Plant Breeding and Genetics, Max-Planck Institute for Plant Breeding Research, Cologne, Germany
- Institute Jean-Pierre Bourgin, INRA, AgroParis Tech, CNRS, Université Paris-Saclay, Versailles, France
| | - Meki Shehabu Muktar
- Department of Plant Breeding and Genetics, Max-Planck Institute for Plant Breeding Research, Cologne, Germany
| | | | - Sebastian Steinemann
- Department of Plant Breeding and Genetics, Max-Planck Institute for Plant Breeding Research, Cologne, Germany
| | - Jinquan Li
- Department of Plant Breeding and Genetics, Max-Planck Institute for Plant Breeding Research, Cologne, Germany
| | - Astrid Draffehn
- Department of Plant Breeding and Genetics, Max-Planck Institute for Plant Breeding Research, Cologne, Germany
| | - Andrea Hofmann
- Department of Genomics, Life & Brain Center, Institute of Human Genetics, University of Bonn, Bonn, Germany
| | - Jens Lübeck
- SaKa-Pflanzenzucht GmbH & Co. KG, 24340, Windeby, Germany
| | | | | | | | - Birgit Walkemeier
- Department of Plant Breeding and Genetics, Max-Planck Institute for Plant Breeding Research, Cologne, Germany
| | - Christiane Gebhardt
- Department of Plant Breeding and Genetics, Max-Planck Institute for Plant Breeding Research, Cologne, Germany
- * E-mail:
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187
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Chitarra W, Pagliarani C, Maserti B, Lumini E, Siciliano I, Cascone P, Schubert A, Gambino G, Balestrini R, Guerrieri E. Insights on the Impact of Arbuscular Mycorrhizal Symbiosis on Tomato Tolerance to Water Stress. PLANT PHYSIOLOGY 2016; 171:1009-23. [PMID: 27208301 PMCID: PMC4902612 DOI: 10.1104/pp.16.00307] [Citation(s) in RCA: 97] [Impact Index Per Article: 12.1] [Reference Citation Analysis] [Abstract] [MESH Headings] [Track Full Text] [Subscribe] [Scholar Register] [Received: 02/24/2016] [Accepted: 04/18/2016] [Indexed: 05/03/2023]
Abstract
Arbuscular mycorrhizal (AM) fungi, which form symbioses with the roots of the most important crop species, are usually considered biofertilizers, whose exploitation could represent a promising avenue for the development in the future of a more sustainable next-generation agriculture. The best understood function in symbiosis is an improvement in plant mineral nutrient acquisition, as exchange for carbon compounds derived from the photosynthetic process: this can enhance host growth and tolerance to environmental stresses, such as water stress (WS). However, physiological and molecular mechanisms occurring in arbuscular mycorrhiza-colonized plants and directly involved in the mitigation of WS effects need to be further investigated. The main goal of this work is to verify the potential impact of AM symbiosis on the plant response to WS To this aim, the effect of two AM fungi (Funneliformis mosseae and Rhizophagus intraradices) on tomato (Solanum lycopersicum) under the WS condition was studied. A combined approach, involving ecophysiological, morphometric, biochemical, and molecular analyses, has been used to highlight the mechanisms involved in plant response to WS during AM symbiosis. Gene expression analyses focused on a set of target genes putatively involved in the plant response to drought, and in parallel, we considered the expression changes induced by the imposed stress on a group of fungal genes playing a key role in the water-transport process. Taken together, the results show that AM symbiosis positively affects the tolerance to WS in tomato, with a different plant response depending on the AM fungi species involved.
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Affiliation(s)
- Walter Chitarra
- Institute for Sustainable Plant Protection, National Research Council, 10135 Turin (W.C., G.G.), 50019 Sesto Fiorentino (E.M.), 10125 Turin (E.L., R.B.), 80055 Portici (P.C., E.G.), Italy;Department of Agricultural, Forest, and Food Sciences (C.P., A.S.), Turin University, 10095 Grugliasco (TO), Italy; Department of Molecular Biotechnology and Health Sciences (I.S.), Turin University, 10126 Turin, Italy
| | - Chiara Pagliarani
- Institute for Sustainable Plant Protection, National Research Council, 10135 Turin (W.C., G.G.), 50019 Sesto Fiorentino (E.M.), 10125 Turin (E.L., R.B.), 80055 Portici (P.C., E.G.), Italy;Department of Agricultural, Forest, and Food Sciences (C.P., A.S.), Turin University, 10095 Grugliasco (TO), Italy; Department of Molecular Biotechnology and Health Sciences (I.S.), Turin University, 10126 Turin, Italy
| | - Biancaelena Maserti
- Institute for Sustainable Plant Protection, National Research Council, 10135 Turin (W.C., G.G.), 50019 Sesto Fiorentino (E.M.), 10125 Turin (E.L., R.B.), 80055 Portici (P.C., E.G.), Italy;Department of Agricultural, Forest, and Food Sciences (C.P., A.S.), Turin University, 10095 Grugliasco (TO), Italy; Department of Molecular Biotechnology and Health Sciences (I.S.), Turin University, 10126 Turin, Italy
| | - Erica Lumini
- Institute for Sustainable Plant Protection, National Research Council, 10135 Turin (W.C., G.G.), 50019 Sesto Fiorentino (E.M.), 10125 Turin (E.L., R.B.), 80055 Portici (P.C., E.G.), Italy;Department of Agricultural, Forest, and Food Sciences (C.P., A.S.), Turin University, 10095 Grugliasco (TO), Italy; Department of Molecular Biotechnology and Health Sciences (I.S.), Turin University, 10126 Turin, Italy
| | - Ilenia Siciliano
- Institute for Sustainable Plant Protection, National Research Council, 10135 Turin (W.C., G.G.), 50019 Sesto Fiorentino (E.M.), 10125 Turin (E.L., R.B.), 80055 Portici (P.C., E.G.), Italy;Department of Agricultural, Forest, and Food Sciences (C.P., A.S.), Turin University, 10095 Grugliasco (TO), Italy; Department of Molecular Biotechnology and Health Sciences (I.S.), Turin University, 10126 Turin, Italy
| | - Pasquale Cascone
- Institute for Sustainable Plant Protection, National Research Council, 10135 Turin (W.C., G.G.), 50019 Sesto Fiorentino (E.M.), 10125 Turin (E.L., R.B.), 80055 Portici (P.C., E.G.), Italy;Department of Agricultural, Forest, and Food Sciences (C.P., A.S.), Turin University, 10095 Grugliasco (TO), Italy; Department of Molecular Biotechnology and Health Sciences (I.S.), Turin University, 10126 Turin, Italy
| | - Andrea Schubert
- Institute for Sustainable Plant Protection, National Research Council, 10135 Turin (W.C., G.G.), 50019 Sesto Fiorentino (E.M.), 10125 Turin (E.L., R.B.), 80055 Portici (P.C., E.G.), Italy;Department of Agricultural, Forest, and Food Sciences (C.P., A.S.), Turin University, 10095 Grugliasco (TO), Italy; Department of Molecular Biotechnology and Health Sciences (I.S.), Turin University, 10126 Turin, Italy
| | - Giorgio Gambino
- Institute for Sustainable Plant Protection, National Research Council, 10135 Turin (W.C., G.G.), 50019 Sesto Fiorentino (E.M.), 10125 Turin (E.L., R.B.), 80055 Portici (P.C., E.G.), Italy;Department of Agricultural, Forest, and Food Sciences (C.P., A.S.), Turin University, 10095 Grugliasco (TO), Italy; Department of Molecular Biotechnology and Health Sciences (I.S.), Turin University, 10126 Turin, Italy
| | - Raffaella Balestrini
- Institute for Sustainable Plant Protection, National Research Council, 10135 Turin (W.C., G.G.), 50019 Sesto Fiorentino (E.M.), 10125 Turin (E.L., R.B.), 80055 Portici (P.C., E.G.), Italy;Department of Agricultural, Forest, and Food Sciences (C.P., A.S.), Turin University, 10095 Grugliasco (TO), Italy; Department of Molecular Biotechnology and Health Sciences (I.S.), Turin University, 10126 Turin, Italy
| | - Emilio Guerrieri
- Institute for Sustainable Plant Protection, National Research Council, 10135 Turin (W.C., G.G.), 50019 Sesto Fiorentino (E.M.), 10125 Turin (E.L., R.B.), 80055 Portici (P.C., E.G.), Italy;Department of Agricultural, Forest, and Food Sciences (C.P., A.S.), Turin University, 10095 Grugliasco (TO), Italy; Department of Molecular Biotechnology and Health Sciences (I.S.), Turin University, 10126 Turin, Italy
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188
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Chitarra W, Pagliarani C, Maserti B, Lumini E, Siciliano I, Cascone P, Schubert A, Gambino G, Balestrini R, Guerrieri E. Insights on the Impact of Arbuscular Mycorrhizal Symbiosis on Tomato Tolerance to Water Stress. PLANT PHYSIOLOGY 2016; 171:1009-1023. [PMID: 27208301 DOI: 10.1104/pp.16.003079] [Citation(s) in RCA: 1] [Impact Index Per Article: 0.1] [Reference Citation Analysis] [Abstract] [MESH Headings] [Subscribe] [Scholar Register] [Received: 02/24/2016] [Accepted: 04/18/2016] [Indexed: 05/20/2023]
Abstract
Arbuscular mycorrhizal (AM) fungi, which form symbioses with the roots of the most important crop species, are usually considered biofertilizers, whose exploitation could represent a promising avenue for the development in the future of a more sustainable next-generation agriculture. The best understood function in symbiosis is an improvement in plant mineral nutrient acquisition, as exchange for carbon compounds derived from the photosynthetic process: this can enhance host growth and tolerance to environmental stresses, such as water stress (WS). However, physiological and molecular mechanisms occurring in arbuscular mycorrhiza-colonized plants and directly involved in the mitigation of WS effects need to be further investigated. The main goal of this work is to verify the potential impact of AM symbiosis on the plant response to WS To this aim, the effect of two AM fungi (Funneliformis mosseae and Rhizophagus intraradices) on tomato (Solanum lycopersicum) under the WS condition was studied. A combined approach, involving ecophysiological, morphometric, biochemical, and molecular analyses, has been used to highlight the mechanisms involved in plant response to WS during AM symbiosis. Gene expression analyses focused on a set of target genes putatively involved in the plant response to drought, and in parallel, we considered the expression changes induced by the imposed stress on a group of fungal genes playing a key role in the water-transport process. Taken together, the results show that AM symbiosis positively affects the tolerance to WS in tomato, with a different plant response depending on the AM fungi species involved.
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Affiliation(s)
- Walter Chitarra
- Institute for Sustainable Plant Protection, National Research Council, 10135 Turin (W.C., G.G.), 50019 Sesto Fiorentino (E.M.), 10125 Turin (E.L., R.B.), 80055 Portici (P.C., E.G.), Italy;Department of Agricultural, Forest, and Food Sciences (C.P., A.S.), Turin University, 10095 Grugliasco (TO), Italy; Department of Molecular Biotechnology and Health Sciences (I.S.), Turin University, 10126 Turin, Italy
| | - Chiara Pagliarani
- Institute for Sustainable Plant Protection, National Research Council, 10135 Turin (W.C., G.G.), 50019 Sesto Fiorentino (E.M.), 10125 Turin (E.L., R.B.), 80055 Portici (P.C., E.G.), Italy;Department of Agricultural, Forest, and Food Sciences (C.P., A.S.), Turin University, 10095 Grugliasco (TO), Italy; Department of Molecular Biotechnology and Health Sciences (I.S.), Turin University, 10126 Turin, Italy
| | - Biancaelena Maserti
- Institute for Sustainable Plant Protection, National Research Council, 10135 Turin (W.C., G.G.), 50019 Sesto Fiorentino (E.M.), 10125 Turin (E.L., R.B.), 80055 Portici (P.C., E.G.), Italy;Department of Agricultural, Forest, and Food Sciences (C.P., A.S.), Turin University, 10095 Grugliasco (TO), Italy; Department of Molecular Biotechnology and Health Sciences (I.S.), Turin University, 10126 Turin, Italy
| | - Erica Lumini
- Institute for Sustainable Plant Protection, National Research Council, 10135 Turin (W.C., G.G.), 50019 Sesto Fiorentino (E.M.), 10125 Turin (E.L., R.B.), 80055 Portici (P.C., E.G.), Italy;Department of Agricultural, Forest, and Food Sciences (C.P., A.S.), Turin University, 10095 Grugliasco (TO), Italy; Department of Molecular Biotechnology and Health Sciences (I.S.), Turin University, 10126 Turin, Italy
| | - Ilenia Siciliano
- Institute for Sustainable Plant Protection, National Research Council, 10135 Turin (W.C., G.G.), 50019 Sesto Fiorentino (E.M.), 10125 Turin (E.L., R.B.), 80055 Portici (P.C., E.G.), Italy;Department of Agricultural, Forest, and Food Sciences (C.P., A.S.), Turin University, 10095 Grugliasco (TO), Italy; Department of Molecular Biotechnology and Health Sciences (I.S.), Turin University, 10126 Turin, Italy
| | - Pasquale Cascone
- Institute for Sustainable Plant Protection, National Research Council, 10135 Turin (W.C., G.G.), 50019 Sesto Fiorentino (E.M.), 10125 Turin (E.L., R.B.), 80055 Portici (P.C., E.G.), Italy;Department of Agricultural, Forest, and Food Sciences (C.P., A.S.), Turin University, 10095 Grugliasco (TO), Italy; Department of Molecular Biotechnology and Health Sciences (I.S.), Turin University, 10126 Turin, Italy
| | - Andrea Schubert
- Institute for Sustainable Plant Protection, National Research Council, 10135 Turin (W.C., G.G.), 50019 Sesto Fiorentino (E.M.), 10125 Turin (E.L., R.B.), 80055 Portici (P.C., E.G.), Italy;Department of Agricultural, Forest, and Food Sciences (C.P., A.S.), Turin University, 10095 Grugliasco (TO), Italy; Department of Molecular Biotechnology and Health Sciences (I.S.), Turin University, 10126 Turin, Italy
| | - Giorgio Gambino
- Institute for Sustainable Plant Protection, National Research Council, 10135 Turin (W.C., G.G.), 50019 Sesto Fiorentino (E.M.), 10125 Turin (E.L., R.B.), 80055 Portici (P.C., E.G.), Italy;Department of Agricultural, Forest, and Food Sciences (C.P., A.S.), Turin University, 10095 Grugliasco (TO), Italy; Department of Molecular Biotechnology and Health Sciences (I.S.), Turin University, 10126 Turin, Italy
| | - Raffaella Balestrini
- Institute for Sustainable Plant Protection, National Research Council, 10135 Turin (W.C., G.G.), 50019 Sesto Fiorentino (E.M.), 10125 Turin (E.L., R.B.), 80055 Portici (P.C., E.G.), Italy;Department of Agricultural, Forest, and Food Sciences (C.P., A.S.), Turin University, 10095 Grugliasco (TO), Italy; Department of Molecular Biotechnology and Health Sciences (I.S.), Turin University, 10126 Turin, Italy
| | - Emilio Guerrieri
- Institute for Sustainable Plant Protection, National Research Council, 10135 Turin (W.C., G.G.), 50019 Sesto Fiorentino (E.M.), 10125 Turin (E.L., R.B.), 80055 Portici (P.C., E.G.), Italy;Department of Agricultural, Forest, and Food Sciences (C.P., A.S.), Turin University, 10095 Grugliasco (TO), Italy; Department of Molecular Biotechnology and Health Sciences (I.S.), Turin University, 10126 Turin, Italy
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189
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Gupta A, Sarkar AK, Senthil-Kumar M. Global Transcriptional Analysis Reveals Unique and Shared Responses in Arabidopsis thaliana Exposed to Combined Drought and Pathogen Stress. FRONTIERS IN PLANT SCIENCE 2016; 7:686. [PMID: 27252712 PMCID: PMC4878317 DOI: 10.3389/fpls.2016.00686] [Citation(s) in RCA: 10] [Impact Index Per Article: 1.3] [Reference Citation Analysis] [Abstract] [Key Words] [Track Full Text] [Subscribe] [Scholar Register] [Received: 02/11/2016] [Accepted: 05/04/2016] [Indexed: 05/18/2023]
Abstract
With frequent fluctuations in global climate, plants are exposed to co-occurring drought and pathogen infection and this combination adversely affects plant survival. In the past, some studies indicated that morpho-physiological responses of plants to the combined stress are different from the individual stressed plants. However, interaction of drought stressed plants with pathogen has not been widely studied at molecular level. Such studies are important to understand the defense pathways that operate as part of combined stress tolerance mechanism. In this study, Arabidopsis thaliana was exposed to individual drought stress, Pseudomonas syringae pv tomato DC3000 (Pst DC3000) infection and their combination. Using Affymetrix WT gene 1.0 ST array, global transcriptome profiling of leaves under individual drought stress and pathogen infection was compared with their combination. The results obtained from pathway mapping (KAAS and MAPMAN) demonstrated the modulation in defense pathways in A. thaliana under drought and host pathogen Pst DC3000 infection. Further, our study revealed "tailored" responses under combined stress and the time of occurrence of each stress during their concurrence has shown differences in transcriptome profile. Our results from microarray and RT-qPCR revealed regulation of 20 novel genes uniquely during the stress interaction. This study indicates that plants exposed to concurrent drought and pathogen stress experience a new state of stress. Thus, under frequently changing climatic conditions, time of occurrence of each stress in the interaction defines the plant responses and should thus be studied explicitly.
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190
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Nosenko T, Böndel KB, Kumpfmüller G, Stephan W. Adaptation to low temperatures in the wild tomato species Solanum chilense. Mol Ecol 2016; 25:2853-69. [PMID: 27037798 DOI: 10.1111/mec.13637] [Citation(s) in RCA: 20] [Impact Index Per Article: 2.5] [Reference Citation Analysis] [Abstract] [Key Words] [Track Full Text] [Journal Information] [Subscribe] [Scholar Register] [Received: 09/25/2015] [Revised: 03/07/2016] [Accepted: 03/22/2016] [Indexed: 11/29/2022]
Abstract
Molecular adaptation to abiotic stresses in plants is a complex process based mainly on the modifications of gene transcriptional activity and the alteration of protein-protein interactions. We used a combination of population genetic, comparative transcriptomic and plant physiology approaches to investigate the mechanisms of adaptation to low temperatures in Solanum chilense populations distributed along Andean altitudinal gradients. We found that plants from all populations have high chilling tolerance, which does not correlate with temperatures in their native habitats. In contrast, tolerance to freezing shows a significant association with altitude and temperature variables. We also observed the differences in expression patterns of cold-response genes between plants from high- and low-altitude populations. These results suggest that genetic adaptations to low temperatures evolved in high-altitude populations of S. chilense. At the transcriptional level, these adaptations may include high levels of constitutive expression of the genes encoding ICE1, the key transcription factor of the cold signalling pathway, and chloroplast ω-3 fatty acid desaturase FAD7. At the sequence level, a signature of selection associated with the adaptation to high altitudes was detected at the C-terminal part of ICE1 encoding the ACT regulatory domain.
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Affiliation(s)
- Tetyana Nosenko
- Section of Evolutionary Biology, Department of Biology II, Ludwig-Maximilians University of Munich, Großhaderner Str. 2, Planegg-Martinsried, 82152, Germany
| | - Katharina B Böndel
- Section of Evolutionary Biology, Department of Biology II, Ludwig-Maximilians University of Munich, Großhaderner Str. 2, Planegg-Martinsried, 82152, Germany.,Institute of Evolutionary Biology, University of Edinburgh, Ashworth Laboratories, King's Buildings, Charlotte Auerbach Road, Edinburgh, EH9, 3FL, UK
| | - Gabriele Kumpfmüller
- Section of Evolutionary Biology, Department of Biology II, Ludwig-Maximilians University of Munich, Großhaderner Str. 2, Planegg-Martinsried, 82152, Germany
| | - Wolfgang Stephan
- Section of Evolutionary Biology, Department of Biology II, Ludwig-Maximilians University of Munich, Großhaderner Str. 2, Planegg-Martinsried, 82152, Germany.,Museum für Naturkunde Berlin, Invalidenstr. 4, Berlin, 10115, Germany
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191
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Bhardwaj J, Gangwar I, Panzade G, Shankar R, Yadav SK. Global De Novo Protein-Protein Interactome Elucidates Interactions of Drought-Responsive Proteins in Horse Gram (Macrotyloma uniflorum). J Proteome Res 2016; 15:1794-809. [PMID: 27161830 DOI: 10.1021/acs.jproteome.5b01114] [Citation(s) in RCA: 13] [Impact Index Per Article: 1.6] [Reference Citation Analysis] [Abstract] [Key Words] [Track Full Text] [Journal Information] [Subscribe] [Scholar Register] [Indexed: 12/31/2022]
Abstract
Inspired by the availability of de novo transcriptome of horse gram (Macrotyloma uniflorum) and recent developments in systems biology studies, the first ever global protein-protein interactome (PPI) map was constructed for this highly drought-tolerant legume. Large-scale studies of PPIs and the constructed database would provide rationale behind the interplay at cascading translational levels for drought stress-adaptive mechanisms in horse gram. Using a bidirectional approach (interolog and domain-based), a high-confidence interactome map and database for horse gram was constructed. Available transcriptomic information for shoot and root tissues of a sensitive (M-191; genotype 1) and a drought-tolerant (M-249; genotype 2) genotype of horse gram was utilized to draw comparative PPI subnetworks under drought stress. High-confidence 6804 interactions were predicted among 1812 proteins covering about one-fourth of the horse gram proteome. The highest number of interactions (33.86%) in horse gram interactome matched with Arabidopsis PPI data. The top five hub nodes mostly included ubiquitin and heat-shock-related proteins. Higher numbers of PPIs were found to be responsive in shoot tissue (416) and root tissue (2228) of genotype 2 compared with shoot tissue (136) and root tissue (579) of genotype 1. Characterization of PPIs using gene ontology analysis revealed that kinase and transferase activities involved in signal transduction, cellular processes, nucleocytoplasmic transport, protein ubiquitination, and localization of molecules were most responsive to drought stress. Hence, these could be framed in stress adaptive mechanisms of horse gram. Being the first legume global PPI map, it would provide new insights into gene and protein regulatory networks for drought stress tolerance mechanisms in horse gram. Information compiled in the form of database (MauPIR) will provide the much needed high-confidence systems biology information for horse gram genes, proteins, and involved processes. This information would ease the effort and increase the efficacy for similar studies on other legumes. Public access is available at http://14.139.59.221/MauPIR/ .
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Affiliation(s)
| | | | | | | | - Sudesh Kumar Yadav
- Center of Innovative and Applied Bioprocessing (CIAB) , Mohali 160071, Punjab, India
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192
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Ogbaga CC, Stepien P, Dyson BC, Rattray NJW, Ellis DI, Goodacre R, Johnson GN. Biochemical Analyses of Sorghum Varieties Reveal Differential Responses to Drought. PLoS One 2016; 11:e0154423. [PMID: 27153323 PMCID: PMC4859509 DOI: 10.1371/journal.pone.0154423] [Citation(s) in RCA: 37] [Impact Index Per Article: 4.6] [Reference Citation Analysis] [Abstract] [MESH Headings] [Grants] [Track Full Text] [Download PDF] [Figures] [Journal Information] [Subscribe] [Scholar Register] [Received: 11/27/2015] [Accepted: 04/13/2016] [Indexed: 12/17/2022] Open
Abstract
We have examined the biochemical responses of two sorghum cultivars of differing drought tolerance, Samsorg 17 (more drought tolerant) and Samsorg 40 (less drought tolerant), to sustained drought. Plants were exposed to different degrees of drought and then maintained at that level for five days. Responses were examined in terms of metabolic changes and the expression of drought induced proteins-Heat Shock Proteins (HSPs) and dehydrins (DHNs). Generalised phenotypic changes were studied using Fourier transform infrared (FT-IR) Spectroscopy and non-targeted Gas Chromatography Mass Spectrometry (GC-MS) was employed to detect changes in metabolites, while changes in protein expression were examined using Western blot analysis. Different response profiles of metabolites, HSPs and DHNs were observed in the two cultivars. Metabolic changes involved variation in amino acids, polysaccharides and their derivatives. A total of 188 compounds, with 142 known metabolites and 46 unknown small molecules, were detected in the two sorghum varieties. Under water deficit conditions, Samsorg 17 accumulated sugars and sugar alcohols, while in Samsorg 40 amino acids increased in concentration. This study suggest that the two Sorghum varieties adopt distinct approaches in response to drought, with Samsorg 17 being better able to maintain leaf function under severe drought conditions.
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Affiliation(s)
- Chukwuma C. Ogbaga
- The University of Manchester, Faculty of Life Sciences, Oxford Road, Manchester, United Kingdom
| | - Piotr Stepien
- The University of Manchester, Faculty of Life Sciences, Oxford Road, Manchester, United Kingdom
- Wroclaw University of Environmental and Life Sciences, Department of Plant Nutrition, ul. Grunwaldzka, Wroclaw, Poland
| | - Beth C. Dyson
- The University of Manchester, Faculty of Life Sciences, Oxford Road, Manchester, United Kingdom
- Manchester Institute of Biotechnology, School of Chemistry, University of Manchester, United Kingdom
| | - Nicholas J. W. Rattray
- Manchester Institute of Biotechnology, School of Chemistry, University of Manchester, United Kingdom
| | - David I. Ellis
- Manchester Institute of Biotechnology, School of Chemistry, University of Manchester, United Kingdom
| | - Royston Goodacre
- Manchester Institute of Biotechnology, School of Chemistry, University of Manchester, United Kingdom
| | - Giles N. Johnson
- The University of Manchester, Faculty of Life Sciences, Oxford Road, Manchester, United Kingdom
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193
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Pandey V, Ansari MW, Tula S, Yadav S, Sahoo RK, Shukla N, Bains G, Badal S, Chandra S, Gaur AK, Kumar A, Shukla A, Kumar J, Tuteja N. Dose-dependent response of Trichoderma harzianum in improving drought tolerance in rice genotypes. PLANTA 2016; 243:1251-64. [PMID: 26898554 DOI: 10.1007/s00425-016-2482-x] [Citation(s) in RCA: 53] [Impact Index Per Article: 6.6] [Reference Citation Analysis] [Abstract] [Key Words] [MESH Headings] [Track Full Text] [Subscribe] [Scholar Register] [Received: 04/13/2015] [Accepted: 01/29/2016] [Indexed: 05/25/2023]
Abstract
This study demonstrates a dose-dependent response of Trichoderma harzianum Th-56 in improving drought tolerance in rice by modulating proline, SOD, lipid peroxidation product and DHN / AQU transcript level, and the growth attributes. In the present study, the effect of colonization of different doses of T. harzianum Th-56 strain in rice genotypes were evaluated under drought stress. The rice genotypes treated with increasing dose of T. harzianum strain Th-56 showed better drought tolerance as compared with untreated control plant. There was significant change in malondialdehyde, proline, higher superoxide dismutase level, plant height, total dry matter, relative chlorophyll content, leaf rolling, leaf tip burn, and the number of scorched/senesced leaves in T. harzianum Th-56 treated rice genotypes under drought stress. This was corroborated with altered expression of aquaporin and dehydrin genes in T. harzianum Th-56 treated rice genotypes. The present findings suggest that a dose of 30 g/L was the most effective in improving drought tolerance in rice, and its potential exploitation will contribute to the advancement of rice genotypes to sustain crop productivity under drought stress. Interaction studies of T. harzianum with three aromatic rice genotypes suggested that PSD-17 was highly benefitted from T. harzianum colonization under drought stress.
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Affiliation(s)
- Veena Pandey
- Department of Plant Physiology, G.B. Pant University of Agriculture and Technology, Pantnagar, 263145, India
| | - Mohammad W Ansari
- Department of Botany, Zakir Husain Delhi College, University of Delhi, Jawahar Lal Nehru Marg, New Delhi, 110002, India
| | - Suresh Tula
- Plant Molecular Biology Group, International Centre for Genetic Engineering and Biotechnology, New Delhi, 110067, India
| | - Sandep Yadav
- Plant Molecular Biology Group, International Centre for Genetic Engineering and Biotechnology, New Delhi, 110067, India
| | - Ranjan K Sahoo
- Plant Molecular Biology Group, International Centre for Genetic Engineering and Biotechnology, New Delhi, 110067, India
| | - Nandini Shukla
- Department of Plant Pathology, G.B. Pant University of Agriculture and Technology, Pantnagar, 263145, India
| | - Gurdeep Bains
- Department of Plant Physiology, G.B. Pant University of Agriculture and Technology, Pantnagar, 263145, India
| | - Shail Badal
- Department of Plant Physiology, G.B. Pant University of Agriculture and Technology, Pantnagar, 263145, India
| | - Subhash Chandra
- Department of Agronomy, G.B. Pant University of Agriculture and Technology, Pantnagar, 263145, India
| | - A K Gaur
- Department of Molecular Biology and Genetic Engineering, G.B. Pant University of Agriculture and Technology, Pantnagar, 263145, India
| | - Atul Kumar
- Department of Plant Physiology, G.B. Pant University of Agriculture and Technology, Pantnagar, 263145, India
| | - Alok Shukla
- Department of Plant Physiology, G.B. Pant University of Agriculture and Technology, Pantnagar, 263145, India.
| | - J Kumar
- Department of Plant Pathology, G.B. Pant University of Agriculture and Technology, Pantnagar, 263145, India.
| | - Narendra Tuteja
- Department of Botany, Zakir Husain Delhi College, University of Delhi, Jawahar Lal Nehru Marg, New Delhi, 110002, India.
- Plant Molecular Biology Group, International Centre for Genetic Engineering and Biotechnology, New Delhi, 110067, India.
- Amity Institute of Microbial Technology, Amity University, E2-Block, 4th Floor, Room 404A, Sector 125, Noida, 201313, UP, India.
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194
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Mageney V, Baldermann S, Albach DC. Intraspecific Variation in Carotenoids of Brassica oleracea var. sabellica. JOURNAL OF AGRICULTURAL AND FOOD CHEMISTRY 2016; 64:3251-3257. [PMID: 27045759 DOI: 10.1021/acs.jafc.6b00268] [Citation(s) in RCA: 24] [Impact Index Per Article: 3.0] [Reference Citation Analysis] [Abstract] [Key Words] [MESH Headings] [Track Full Text] [Subscribe] [Scholar Register] [Indexed: 06/05/2023]
Abstract
Carotenoids are best known as a source of natural antioxidants. Physiologically, carotenoids are part of the photoprotection in plants as they act as scavengers of reactive oxygen species (ROS). An important source of carotenoids in European food is Brassica oleracea. Focusing on the most abundant carotenoids, we estimated the contents of ß-carotene, (9Z)-neoxanthin, zeaxanthin, and lutein as well as those of chlorophylls a and b to assess their variability in Brassica oleracea var. sabellica. Our analyses included more than 30 cultivars categorized in five distinct sets grouped according to morphological characteristics or geographical origin. Our results demonstrated specific carotenoid patterns characteristic for American, Italian, and red-colored kale cultivars. Moreover, we demonstrated a tendency of high zeaxanthin proportions under traditional harvest conditions, which accord to low-temperature regimes. We also compared the carotenoid patterns of self-generated hybrid lines. Corresponding findings indicated that crossbreeding has a high potential for carotenoid content optimization in kale.
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Affiliation(s)
- Vera Mageney
- Institute of Biology and Environmental Sciences, Carl von Ossietzky University , Oldenburg Carl von Ossietzky Str. 9-11, 26129 Oldenburg, Germany
| | - Susanne Baldermann
- Leibniz-Institute of Vegetables and Ornamental Crops Grossbeeren/Erfurt e. V. , Theodor-Echtermeyer-Weg 1, 14979 Grossbeeren, Germany
- Institute of Nutritional Science, University of Potsdam , Arthur-Scheunert-Allee 114-116, 14558 Nuthetal, Germany
| | - Dirk C Albach
- Institute of Biology and Environmental Sciences, Carl von Ossietzky University , Oldenburg Carl von Ossietzky Str. 9-11, 26129 Oldenburg, Germany
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195
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Rodríguez de Francisco L, Romero-Rodríguez MC, Navarro-Cerrillo RM, Miniño V, Perdomo O, Jorrín-Novo JV. Characterization of the orthodox Pinus occidentalis seed and pollen proteomes by using complementary gel-based and gel-free approaches. J Proteomics 2016; 143:382-389. [PMID: 27084684 DOI: 10.1016/j.jprot.2016.03.041] [Citation(s) in RCA: 8] [Impact Index Per Article: 1.0] [Reference Citation Analysis] [Abstract] [Key Words] [Track Full Text] [Journal Information] [Subscribe] [Scholar Register] [Received: 01/21/2016] [Revised: 03/19/2016] [Accepted: 03/28/2016] [Indexed: 01/31/2023]
Abstract
UNLABELLED This work presents an analysis of Pinus occidentalis pollen and seed proteomes, in which both gel-based and gel-free approaches have been used. Proteins were extracted from P. occidentalis seeds and pollen by using the TCA/acetone/phenol precipitation protocol, and protein extracts were subjected to 1- and 2-DE coupled to MALDI-TOF-TOF as well as to shotgun (nLC-LTQ-Orbitrap) analysis. All bands (1-DE) and the most abundant spots (2-DE) were excised, trypsin digested and the resulting peptides analyzed by MALDI TOF/TOF. In order to increase the proteome coverage, a gel free approach was used. Proteins were identified from mass spectra by using three different databases, including UniProtKB, NCBI and a Pinus spp. custom database [2]. The gel-based approach resulted in 42 (seeds) and 94 (pollen) protein identifications, while the shotgun approach permitted the identification of 187 (seed) and 960 (pollen) proteins. Proteins were classified based on their corresponding functional categories. In seeds, storage proteins were the most abundant ones, and some allergens and proteases were also identified. In pollen proteins related to general metabolism were the most predominant. Data are compared and discussed from a methodological and biological point of view, taking into account the particularities of the seed and pollen organs. BIOLOGICAL SIGNIFICANCE In this work we characterized P. occidentalis proteome with seeds and pollen samples implementing two complementary approaches for the analysis. We found a high content of storage protein, stress response and metabolism related proteins in the seed proteome. Similarly, in the pollen proteome we found predominant groups of proteins related to metabolism and stress response.
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Affiliation(s)
- Luis Rodríguez de Francisco
- Laboratorio de Biología, Instituto Tecnológico de Santo Domingo, República Dominicana; Agricultural and Plant Biochemistry and Proteomics Research Group, Dept. of Biochemistry and Molecular Biology, University of Córdoba, Agrifood Campus of International Excellence (ceiA3), 14071 Córdoba, Spain.
| | - Ma Cristina Romero-Rodríguez
- Departamento de Fitoquímica, Dirección de Investigación de la Facultad de Ciencias Químicas de la Universidad Nacional de Asunción, Paraguay.
| | - Rafael M Navarro-Cerrillo
- Department of Forestry Engineering, ETSIAM, University of Córdoba, Agrifood Campus of International Excellence (ceiA3), 14071 Córdoba, Spain
| | - Virgilio Miniño
- Laboratorio de Biología, Instituto Tecnológico de Santo Domingo, República Dominicana
| | - Omar Perdomo
- Laboratorio de Biología, Instituto Tecnológico de Santo Domingo, República Dominicana
| | - Jesús V Jorrín-Novo
- Agricultural and Plant Biochemistry and Proteomics Research Group, Dept. of Biochemistry and Molecular Biology, University of Córdoba, Agrifood Campus of International Excellence (ceiA3), 14071 Córdoba, Spain
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196
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Hara M, Monna S, Murata T, Nakano T, Amano S, Nachbar M, Wätzig H. The Arabidopsis KS-type dehydrin recovers lactate dehydrogenase activity inhibited by copper with the contribution of His residues. PLANT SCIENCE : AN INTERNATIONAL JOURNAL OF EXPERIMENTAL PLANT BIOLOGY 2016; 245:135-42. [PMID: 26940498 DOI: 10.1016/j.plantsci.2016.02.006] [Citation(s) in RCA: 16] [Impact Index Per Article: 2.0] [Reference Citation Analysis] [Abstract] [Key Words] [MESH Headings] [Track Full Text] [Subscribe] [Scholar Register] [Received: 10/10/2015] [Revised: 02/05/2016] [Accepted: 02/06/2016] [Indexed: 05/02/2023]
Abstract
Dehydrin, which is one of the late embryogenesis abundant (LEA) proteins, is involved in the ability of plants to tolerate the lack of water. Although many reports have indicated that dehydrins bind heavy metals, the physiological role of this metal binding has not been well understood. Here, we report that the Arabidopsis KS-type dehydrin (AtHIRD11) recovered the lactate dehydrogenase (LDH) activity denatured by Cu(2+). The LDH activity was partially inhibited by 0.93 μM Cu(2+) but totally inactivated by 9.3 μM Cu(2+). AtHIRD11 recovered the activity of LDH treated with 9.3 μM Cu(2+) in a dose-dependent manner. The recovery activity of AtHIRD11 was significantly higher than those of serum albumin and lysozyme. The conversion of His residues to Ala in AtHIRD11 resulted in the loss of the Cu(2+) binding of the protein as well as the disappearance of the conformational change induced by Cu(2+) that is observed by circular dichroism spectroscopy. The mutant protein showed lower recovery activity than the original AtHIRD11. These results indicate that AtHIRD11 can reactivate LDH inhibited by Cu(2+) via the His residues. This function may prevent physiological damage to plants due to heavy-metal stress.
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Affiliation(s)
- Masakazu Hara
- Research Institute of Green Science and Technology, Shizuoka University, 836 Ohya, Shizuoka 422-8529, Japan.
| | - Shuhei Monna
- Research Institute of Green Science and Technology, Shizuoka University, 836 Ohya, Shizuoka 422-8529, Japan
| | - Takae Murata
- Research Institute of Green Science and Technology, Shizuoka University, 836 Ohya, Shizuoka 422-8529, Japan
| | - Taiyo Nakano
- Research Institute of Green Science and Technology, Shizuoka University, 836 Ohya, Shizuoka 422-8529, Japan
| | - Shono Amano
- Research Institute of Green Science and Technology, Shizuoka University, 836 Ohya, Shizuoka 422-8529, Japan
| | - Markus Nachbar
- Institut für Pharmazeutische Chemie, Technische Universität Braunschweig, Beethovenstraße 55, 38106 Braunschweig, Germany
| | - Hermann Wätzig
- Institut für Pharmazeutische Chemie, Technische Universität Braunschweig, Beethovenstraße 55, 38106 Braunschweig, Germany
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197
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Dahro B, Wang F, Peng T, Liu JH. PtrA/NINV, an alkaline/neutral invertase gene of Poncirus trifoliata, confers enhanced tolerance to multiple abiotic stresses by modulating ROS levels and maintaining photosynthetic efficiency. BMC PLANT BIOLOGY 2016. [PMID: 27025596 DOI: 10.1016/j.envexpbot.2018.12.009] [Citation(s) in RCA: 157] [Impact Index Per Article: 19.6] [Reference Citation Analysis] [Abstract] [Key Words] [MESH Headings] [Track Full Text] [Subscribe] [Scholar Register] [Indexed: 05/14/2023]
Abstract
BACKGROUND Alkaline/neutral invertase (A/N-INV), an enzyme that hydrolyzes sucrose irreversibly into glucose and fructose, is essential for normal plant growth,development, and stress tolerance. However, the physiological and/or molecular mechanism underpinning the role of A/N-INV in abiotic stress tolerance is poorly understood. RESULTS In this report, an A/N-INV gene (PtrA/NINV) was isolated from Poncirus trifoliata, a cold-hardy relative of citrus, and functionally characterized. PtrA/NINV expression levels were induced by cold, salt, dehydration, sucrose, and ABA, but decreased by glucose. PtrA/NINV was found to localize in both chloroplasts and mitochondria. Overexpression of PtrA/NINV conferred enhanced tolerance to multiple stresses, including cold, high salinity, and drought, as supported by lower levels of reactive oxygen species (ROS), reduced oxidative damages, decreased water loss rate, and increased photosynthesis efficiency, relative to wild-type (WT). The transgenic plants exhibited higher A/N-INV activity and greater reducing sugar content under normal and stress conditions. CONCLUSIONS PtrA/NINV is an important gene implicated in sucrose decomposition, and plays a positive role in abiotic stress tolerance by promoting osmotic adjustment, ROS detoxification and photosynthesis efficiency. Thus, PtrA/NINV has great potential to be used in transgenic breeding for improvement of stress tolerance.
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Affiliation(s)
- Bachar Dahro
- Key Laboratory of Horticultural Plant Biology (MOE), College of Horticulture and Forestry Science, Huazhong Agricultural University, Wuhan, 430070, China
- Department of Horticulture, Faculty of Agriculture, Tishreen University, Lattakia, Syria
| | - Fei Wang
- Key Laboratory of Horticultural Plant Biology (MOE), College of Horticulture and Forestry Science, Huazhong Agricultural University, Wuhan, 430070, China
| | - Ting Peng
- Key Laboratory of Horticultural Plant Biology (MOE), College of Horticulture and Forestry Science, Huazhong Agricultural University, Wuhan, 430070, China
| | - Ji-Hong Liu
- Key Laboratory of Horticultural Plant Biology (MOE), College of Horticulture and Forestry Science, Huazhong Agricultural University, Wuhan, 430070, China.
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198
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Bertrand A, Bipfubusa M, Castonguay Y, Rocher S, Szopinska-Morawska A, Papadopoulos Y, Renaut J. A proteome analysis of freezing tolerance in red clover (Trifolium pratense L.). BMC PLANT BIOLOGY 2016; 16:65. [PMID: 26965047 PMCID: PMC4787020 DOI: 10.1186/s12870-016-0751-2] [Citation(s) in RCA: 11] [Impact Index Per Article: 1.4] [Reference Citation Analysis] [Abstract] [Key Words] [MESH Headings] [Track Full Text] [Subscribe] [Scholar Register] [Received: 10/15/2015] [Accepted: 02/29/2016] [Indexed: 05/15/2023]
Abstract
BACKGROUND Improvement of freezing tolerance of red clover (Trifolium pratense L.) would increase its persistence under cold climate. In this study, we assessed the freezing tolerance and compared the proteome composition of non-acclimated and cold-acclimated plants of two initial cultivars of red clover: Endure (E-TF0) and Christie (C-TF0) and of populations issued from these cultivars after three (TF3) and four (TF4) cycles of phenotypic recurrent selection for superior freezing tolerance. Through this approach, we wanted to identify proteins that are associated with the improvement of freezing tolerance in red clover. RESULTS Freezing tolerance expressed as the lethal temperature for 50 % of the plants (LT50) increased markedly from approximately -2 to -16 °C following cold acclimation. Recurrent selection allowed a significant 2 to 3 °C increase of the LT50 after four cycles of recurrent selection. Two-dimensional difference gel electrophoresis (2D-DIGE) was used to study variations in protein abundance. Principal component analysis based on 2D-DIGE revealed that the largest variability in the protein data set was attributable to the cold acclimation treatment and that the two genetic backgrounds had differential protein composition in the acclimated state only. Vegetative storage proteins (VSP), which are essential nitrogen reserves for plant regrowth, and dehydrins were among the most striking changes in proteome composition of cold acclimated crowns of red clovers. A subset of proteins varied in abundance in response to selection including a dehydrin that increased in abundance in TF3 and TF4 populations as compared to TF0 in the Endure background. CONCLUSION Recurrent selection performed indoor is an effective approach to improve the freezing tolerance of red clover. Significant improvement of freezing tolerance by recurrent selection was associated with differential accumulation of a small number of cold-regulated proteins that may play an important role in the determination of the level of freezing tolerance.
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Affiliation(s)
| | | | | | - Solen Rocher
- />Agriculture and Agri-Food Canada, Québec City, Canada
| | | | | | - Jenny Renaut
- />Luxembourg Institute of Science and Technology, Belvaux, Luxembourg
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199
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Manzo D, Ferriello F, Puopolo G, Zoina A, D'Esposito D, Tardella L, Ferrarini A, Ercolano MR. Fusarium oxysporum f.sp. radicis-lycopersici induces distinct transcriptome reprogramming in resistant and susceptible isogenic tomato lines. BMC PLANT BIOLOGY 2016; 16:53. [PMID: 26920134 PMCID: PMC4769521 DOI: 10.1186/s12870-016-0740-5] [Citation(s) in RCA: 25] [Impact Index Per Article: 3.1] [Reference Citation Analysis] [Abstract] [Key Words] [MESH Headings] [Grants] [Track Full Text] [Subscribe] [Scholar Register] [Received: 07/29/2015] [Accepted: 02/17/2016] [Indexed: 05/20/2023]
Abstract
BACKGROUND Fusarium oxysporum f.sp. radicis-lycopersici (FORL) is one of the most destructive necrotrophic pathogens affecting tomato crops, causing considerable field and greenhouse yield losses. Despite such major economic impact, little is known about the molecular mechanisms regulating Fusarium oxysporum f.sp. radicis-lycopersici resistance in tomato. RESULTS A transcriptomic experiment was carried out in order to investigate the main mechanisms of FORL response in resistant and susceptible isogenic tomato lines. Microarray analysis at 15 DPI (days post inoculum) revealed a distinct gene expression pattern between the two genotypes in the inoculated vs non-inoculated conditions. A model of plant response both for compatible and incompatible reactions was proposed. In particular, in the incompatible interaction an activation of defense genes related to secondary metabolite production and tryptophan metabolism was observed. Moreover, maintenance of the cell osmotic potential after the FORL challenging was mediated by a dehydration-induced protein. As for the compatible interaction, activation of an oxidative burst mediated by peroxidases and a cytochrome monooxygenase induced cell degeneration and necrosis. CONCLUSIONS Our work allowed comprehensive understanding of the molecular basis of the tomato-FORL interaction. The result obtained emphasizes a different transcriptional reaction between the resistant and the susceptible genotype to the FORL challenge. Our findings could lead to the improvement in disease control strategies.
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Affiliation(s)
- Daniele Manzo
- Department of Agriculture Sciences, University of Naples 'Federico II', Via Università, 100, 80055, Portici, Italy.
| | - Francesca Ferriello
- Department of Agriculture Sciences, University of Naples 'Federico II', Via Università, 100, 80055, Portici, Italy.
| | - Gerardo Puopolo
- Department of Agriculture Sciences, University of Naples 'Federico II', Via Università, 100, 80055, Portici, Italy.
- Current address: Sustainable Agro-Ecosystems and Bioresources Department - IASMA Research and Innovation Center - Fondazione Edmund Mach, S. Michele all'Adige, Trento, Italy.
| | - Astolfo Zoina
- Department of Agriculture Sciences, University of Naples 'Federico II', Via Università, 100, 80055, Portici, Italy.
| | - Daniela D'Esposito
- Department of Agriculture Sciences, University of Naples 'Federico II', Via Università, 100, 80055, Portici, Italy.
| | - Luca Tardella
- Department of Statistical Sciences, University of Rome 'La Sapienza', Rome, Italy.
| | - Alberto Ferrarini
- Dipartimento di Biotecnologie, Università degli Studi di Verona, Strada le Grazie, Verona, Italy.
| | - Maria Raffaella Ercolano
- Department of Agriculture Sciences, University of Naples 'Federico II', Via Università, 100, 80055, Portici, Italy.
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200
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Li KQ, Xu XY, Huang XS. Identification of Differentially Expressed Genes Related to Dehydration Resistance in a Highly Drought-Tolerant Pear, Pyrus betulaefolia, as through RNA-Seq. PLoS One 2016; 11:e0149352. [PMID: 26900681 PMCID: PMC4762547 DOI: 10.1371/journal.pone.0149352] [Citation(s) in RCA: 28] [Impact Index Per Article: 3.5] [Reference Citation Analysis] [Abstract] [MESH Headings] [Track Full Text] [Download PDF] [Figures] [Journal Information] [Subscribe] [Scholar Register] [Received: 10/29/2015] [Accepted: 01/29/2016] [Indexed: 12/03/2022] Open
Abstract
Drought is a major abiotic stress that affects plant growth, development and productivity. Pear is one of the most important deciduous fruit trees in the world, but the mechanisms of drought tolerance in this plant are still unclear. To better understand the molecular basis regarding drought stress response, RNA-seq was performed on samples collected before and after dehydration in Pyrus betulaefolia. In total, 19,532 differentially expressed genes (DEGs) were identified. These genes were annotated into 144 Gene Ontology (GO) terms and 18 clusters of orthologous groups (COG) involved in 129 Kyoto Encyclopedia of Genes and Genomes (KEGG) defined pathways. These DEGs comprised 49 (26 up-regulated, 23 down-regulated), 248 (166 up-regulated, 82 down-regulated), 3483 (1295 up-regulated, 2188 down-regulated), 1455 (1065 up-regulated, 390 down-regulated) genes from the 1 h, 3 h and 6 h dehydration-treated samples and a 24 h recovery samples, respectively. RNA-seq was validated by analyzing the expresson patterns of randomly selected 16 DEGs by quantitative real-time PCR. Photosynthesis, signal transduction, innate immune response, protein phosphorylation, response to water, response to biotic stimulus, and plant hormone signal transduction were the most significantly enriched GO categories amongst the DEGs. A total of 637 transcription factors were shown to be dehydration responsive. In addition, a number of genes involved in the metabolism and signaling of hormones were significantly affected by the dehydration stress. This dataset provides valuable information regarding the Pyrus betulaefolia transcriptome changes in response to dehydration and may promote identification and functional analysis of potential genes that could be used for improving drought tolerance via genetic engineering of non-model, but economically-important, perennial species.
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Affiliation(s)
- Kong-Qing Li
- College of Rural Development, Nanjing Agricultural University, Nanjing, 210095, China
| | - Xiao-Yong Xu
- School of Horticulture and Plant Protection, Yangzhou University, Yangzhou, 225009, China
| | - Xiao-San Huang
- College of Horticulture, State Key Laboratory of Crop Genetics and Germplasm Enhancement, Nanjing Agricultural University, Nanjing, 210095, China
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