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Wang W, Wang H, Ren X, Zhang W, Li Q. Organophosphate esters uptake, translocation and accumulation in rice ( Oryza sativa L.): impacts of lipid transporters and chemical properties. ENVIRONMENTAL SCIENCE. PROCESSES & IMPACTS 2024; 26:1171-1183. [PMID: 38888146 DOI: 10.1039/d4em00132j] [Citation(s) in RCA: 0] [Impact Index Per Article: 0] [Reference Citation Analysis] [Abstract] [MESH Headings] [Track Full Text] [Subscribe] [Scholar Register] [Indexed: 06/20/2024]
Abstract
To explore key factors involved in the uptake, translocation and accumulation of organophosphate esters (OPEs), computer simulation analysis and hydroponic experiments were executed. Lipid transporters with stocky-like active (SAC) cavities usually showed stronger binding affinities with the OPEs, especially when the SAC cavities belong to the Fish Trap model according to molecular docking. In our hydroponic trial, the binding affinity and gene expression of the lipid transporters and log Kow of the OPEs could be charged to the uptake, translocation and accumulation of the OPEs; however, these three factors played various important roles in roots and shoots. In detail, the effect of gene expression and binding affinity were stronger than log Kow in roots uptake and accumulation, but the result was the opposite in the shoots translocation. Transporters OsTIL and OsLTPL1 among all investigated transporters could play key roles in transporter-mediated OPE uptake, translocation and accumulation in the roots and shoots. OsMLP could be involved in the bidirected vertical translocation of the OPEs. OsLTP2 and OsLTP4 mainly acted as transporters of the OPEs in roots.
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Affiliation(s)
- Wenxuan Wang
- University of Science and Technology Beijing, School of Chemistry and Biological Engineering, Department of Biological Science and Engineering, China.
| | - Haiou Wang
- University of Science and Technology Beijing, School of Chemistry and Biological Engineering, Department of Biological Science and Engineering, China.
| | - Xiaoyu Ren
- University of Science and Technology Beijing, School of Chemistry and Biological Engineering, Department of Biological Science and Engineering, China.
| | - Wenxiao Zhang
- University of Science and Technology Beijing, School of Chemistry and Biological Engineering, Department of Biological Science and Engineering, China.
| | - Qian Li
- University of Science and Technology Beijing, School of Chemistry and Biological Engineering, Department of Biological Science and Engineering, China.
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2
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Dong CS, Zhang WL, Wang XY, Wang X, Wang J, Wang M, Fang Y, Liu L. Crystallographic and functional studies of a plant temperature-induced lipocalin. Biochim Biophys Acta Gen Subj 2024; 1868:130540. [PMID: 38103756 DOI: 10.1016/j.bbagen.2023.130540] [Citation(s) in RCA: 0] [Impact Index Per Article: 0] [Reference Citation Analysis] [Abstract] [Key Words] [MESH Headings] [Track Full Text] [Journal Information] [Subscribe] [Scholar Register] [Received: 10/16/2023] [Revised: 11/30/2023] [Accepted: 12/09/2023] [Indexed: 12/19/2023]
Abstract
Arabidopsis thaliana temperature-induced lipocalin (AtTIL) is a prototypical member of plant lipocalins and participates in a variety of cellular processes, particularly stress responses. Bioinformatical and physiological studies have proposed its promiscuous ligand-binding ability, but the molecular basis is yet unclear. Here, we report the 1.9-Å crystal structure of AtTIL in complex with heme. Spectrophotometric absorbance titration with heme yields a dissociation constant of ∼2 micromolar, indicating the relatively weak interaction between AtTIL and heme, which is confirmed by the AtTIL-heme structure. Although binding to retinal or biliverdin is not detected, such possibility can not be precluded as suggested by comparison with other lipocalin structures. These results show that AtTIL is a structural and functional homolog of the bacterial lipocalin Blc.
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Affiliation(s)
- Chen-Song Dong
- School of Life Sciences, Anhui University, Hefei, Anhui 230601, China
| | - Wei-Lun Zhang
- School of Life Sciences, Anhui University, Hefei, Anhui 230601, China
| | - Xiao-Ying Wang
- School of Life Sciences, Anhui University, Hefei, Anhui 230601, China
| | - Xiao Wang
- School of Life Sciences, Anhui University, Hefei, Anhui 230601, China
| | - Jia Wang
- School of Life Sciences, Anhui University, Hefei, Anhui 230601, China
| | - Mingzhu Wang
- Institutes of Physical Science and Information Technology, Anhui University, Hefei, Anhui 230601, China
| | - Ying Fang
- National Key Laboratory of Wheat Improvement, College of Life Sciences, Shandong Agricultural University, Taian, Shandong 271018, China
| | - Lin Liu
- School of Life Sciences, Anhui University, Hefei, Anhui 230601, China.
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3
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Mall M, Shanker K, Nagegowda DA, Samad A, Kalra A, Pandey A, Sundaresan V, Shukla AK. Temperature-induced lipocalin-mediated membrane integrity: Possible implications for vindoline accumulation in Catharanthus roseus leaves. PHYSIOLOGIA PLANTARUM 2023; 175:e13994. [PMID: 37882277 DOI: 10.1111/ppl.13994] [Citation(s) in RCA: 0] [Impact Index Per Article: 0] [Reference Citation Analysis] [Abstract] [MESH Headings] [Grants] [Track Full Text] [Subscribe] [Scholar Register] [Received: 11/23/2022] [Revised: 07/29/2023] [Accepted: 08/05/2023] [Indexed: 10/27/2023]
Abstract
Plant lipocalins perform diverse functions. Recently, allene oxide cyclase, a lipocalin family member, has been shown to co-express with vindoline pathway genes in Catharanthus roseus under various biotic/abiotic stresses. This brought focus to another family member, a temperature-induced lipocalin (CrTIL), which was selected for full-length cloning, tissue-specific expression profiling, in silico characterization, and upstream genomic region analysis for cis-regulatory elements. Stress-mediated variations in CrTIL expression were reflected as disturbances in cell membrane integrity, assayed through measurement of electrolyte leakage and lipid peroxidation product, MDA, which implicated the role of CrTIL in maintaining cell membrane integrity. For ascertaining the function of CrTIL in maintaining membrane stability and elucidating the relationship between CrTIL expression and vindoline content, if any, a direct approach was adopted, whereby CrTIL was transiently silenced and overexpressed in C. roseus. CrTIL silencing and overexpression confirmed its role in the maintenance of membrane integrity and indicated an inverse relationship of its expression with vindoline content. GFP fusion-based subcellular localization indicated membrane localization of CrTIL, which was in agreement with its role in maintaining membrane integrity. Altogether, the role of CrTIL in maintaining membrane structure has possible implications for the intracellular sequestration, storage, and viability of vindoline.
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Affiliation(s)
- Maneesha Mall
- CSIR-Central Institute of Medicinal and Aromatic Plants, Lucknow, Uttar Pradesh, India
| | - Karuna Shanker
- CSIR-Central Institute of Medicinal and Aromatic Plants, Lucknow, Uttar Pradesh, India
| | - Dinesh A Nagegowda
- CSIR-Central Institute of Medicinal and Aromatic Plants, Research Centre, Bengaluru, Karnataka, India
| | - Abdul Samad
- CSIR-Central Institute of Medicinal and Aromatic Plants, Lucknow, Uttar Pradesh, India
| | - Alok Kalra
- CSIR-Central Institute of Medicinal and Aromatic Plants, Lucknow, Uttar Pradesh, India
| | - Alok Pandey
- CSIR-Central Institute of Medicinal and Aromatic Plants, Lucknow, Uttar Pradesh, India
| | - Velusamy Sundaresan
- CSIR-Central Institute of Medicinal and Aromatic Plants, Research Centre, Bengaluru, Karnataka, India
| | - Ashutosh K Shukla
- CSIR-Central Institute of Medicinal and Aromatic Plants, Lucknow, Uttar Pradesh, India
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4
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Jedličková V, Hejret V, Demko M, Jedlička P, Štefková M, Robert HS. Transcriptome analysis of thermomorphogenesis in ovules and during early seed development in Brassica napus. BMC Genomics 2023; 24:236. [PMID: 37142980 PMCID: PMC10158150 DOI: 10.1186/s12864-023-09316-2] [Citation(s) in RCA: 0] [Impact Index Per Article: 0] [Reference Citation Analysis] [Abstract] [Key Words] [Grants] [Track Full Text] [Journal Information] [Subscribe] [Scholar Register] [Received: 12/21/2022] [Accepted: 04/16/2023] [Indexed: 05/06/2023] Open
Abstract
BACKGROUND Plant sexual reproduction is highly sensitive to elevated ambient temperatures, impacting seed development and production. We previously phenotyped this effect on three rapeseed cultivars (DH12075, Topas DH4079, and Westar). This work describes the transcriptional response associated with the phenotypic changes induced by heat stress during early seed development in Brassica napus. RESULTS We compared the differential transcriptional response in unfertilized ovules and seeds bearing embryos at 8-cell and globular developmental stages of the three cultivars exposed to high temperatures. We identified that all tissues and cultivars shared a common transcriptional response with the upregulation of genes linked to heat stress, protein folding and binding to heat shock proteins, and the downregulation of cell metabolism. The comparative analysis identified an enrichment for a response to reactive oxygen species (ROS) in the heat-tolerant cultivar Topas, correlating with the phenotypic changes. The highest heat-induced transcriptional response in Topas seeds was detected for genes encoding various peroxidases, temperature-induced lipocalin (TIL1), or protein SAG21/LEA5. On the contrary, the transcriptional response in the two heat-sensitive cultivars, DH12075 and Westar, was characterized by heat-induced cellular damages with the upregulation of genes involved in the photosynthesis and plant hormone signaling pathways. Particularly, the TIFY/JAZ genes involved in jasmonate signaling were induced by stress, specifically in ovules of heat-sensitive cultivars. Using a weighted gene co-expression network analysis (WGCNA), we identified key modules and hub genes involved in the heat stress response in studied tissues of either heat-tolerant or sensitive cultivars. CONCLUSIONS Our transcriptional analysis complements a previous phenotyping analysis by characterizing the growth response to elevated temperatures during early seed development and reveals the molecular mechanisms underlying the phenotypic response. The results demonstrated that response to ROS, seed photosynthesis, and hormonal regulation might be the critical factors for stress tolerance in oilseed rape.
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Affiliation(s)
- Veronika Jedličková
- Hormonal Crosstalk in Plant Development, Mendel Center for Plant Genomics and Proteomics, CEITEC MU-Central European Institute of Technology, Masaryk University, Brno, Czech Republic
| | - Václav Hejret
- Bioinformatics Core Facility, CEITEC MU-Central European Institute of Technology, Masaryk University, Brno, Czech Republic
| | - Martin Demko
- Bioinformatics Core Facility, CEITEC MU-Central European Institute of Technology, Masaryk University, Brno, Czech Republic
| | - Pavel Jedlička
- Department of Plant Developmental Genetics, Institute of Biophysics of the Czech Academy of Sciences, Brno, Czech Republic
| | - Marie Štefková
- Hormonal Crosstalk in Plant Development, Mendel Center for Plant Genomics and Proteomics, CEITEC MU-Central European Institute of Technology, Masaryk University, Brno, Czech Republic
| | - Hélène S Robert
- Hormonal Crosstalk in Plant Development, Mendel Center for Plant Genomics and Proteomics, CEITEC MU-Central European Institute of Technology, Masaryk University, Brno, Czech Republic.
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Reyes-Rosales A, Cabrales-Orona G, Martínez-Gallardo NA, Sánchez-Segura L, Padilla-Escamilla JP, Palmeros-Suárez PA, Délano-Frier JP. Identification of genetic and biochemical mechanisms associated with heat shock and heat stress adaptation in grain amaranths. FRONTIERS IN PLANT SCIENCE 2023; 14:1101375. [PMID: 36818889 PMCID: PMC9932720 DOI: 10.3389/fpls.2023.1101375] [Citation(s) in RCA: 0] [Impact Index Per Article: 0] [Reference Citation Analysis] [Abstract] [Key Words] [Track Full Text] [Figures] [Subscribe] [Scholar Register] [Received: 11/17/2022] [Accepted: 01/13/2023] [Indexed: 06/18/2023]
Abstract
Heat stress is poised to become a major factor negatively affecting plant performance worldwide. In terms of world food security, increased ambient temperatures are poised to reduce yields in cereals and other economically important crops. Grain amaranths are known to be productive under poor and/or unfavorable growing conditions that significantly affect cereals and other crops. Several physiological and biochemical attributes have been recognized to contribute to this favorable property, including a high water-use efficiency and the activation of a carbon starvation response. This study reports the behavior of the three grain amaranth species to two different stress conditions: short-term exposure to heat shock (HS) conditions using young plants kept in a conditioned growth chamber or long-term cultivation under severe heat stress in greenhouse conditions. The latter involved exposing grain amaranth plants to daylight temperatures that hovered around 50°C, or above, for at least 4 h during the day and to higher than normal nocturnal temperatures for a complete growth cycle in the summer of 2022 in central Mexico. All grain amaranth species showed a high tolerance to HS, demonstrated by a high percentage of recovery after their return to optimal growing conditions. The tolerance observed coincided with increased expression levels of unknown function genes previously shown to be induced by other (a)biotic stress conditions. Included among them were genes coding for RNA-binding and RNA-editing proteins, respectively. HS tolerance was also in accordance with favorable changes in several biochemical parameters usually induced in plants in response to abiotic stresses. Conversely, exposure to a prolonged severe heat stress seriously affected the vegetative and reproductive development of all three grain amaranth species, which yielded little or no seed. The latter data suggested that the usually stress-tolerant grain amaranths are unable to overcome severe heat stress-related damage leading to reproductive failure.
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Affiliation(s)
- Alejandra Reyes-Rosales
- Departamento de Biotecnología y Bioquímica, Centro de Investigación y de Estudios Avanzados del Instituto Politécnico Nacional, Unidad Irapuato, Irapuato, Guanajuato, Mexico
| | - Gabriela Cabrales-Orona
- Departamento de Biotecnología y Bioquímica, Centro de Investigación y de Estudios Avanzados del Instituto Politécnico Nacional, Unidad Irapuato, Irapuato, Guanajuato, Mexico
| | - Norma A. Martínez-Gallardo
- Departamento de Biotecnología y Bioquímica, Centro de Investigación y de Estudios Avanzados del Instituto Politécnico Nacional, Unidad Irapuato, Irapuato, Guanajuato, Mexico
| | - Lino Sánchez-Segura
- Departamento de Biotecnología y Bioquímica, Centro de Investigación y de Estudios Avanzados del Instituto Politécnico Nacional, Unidad Irapuato, Irapuato, Guanajuato, Mexico
| | - Jazmín P. Padilla-Escamilla
- Departamento de Biotecnología y Bioquímica, Centro de Investigación y de Estudios Avanzados del Instituto Politécnico Nacional, Unidad Irapuato, Irapuato, Guanajuato, Mexico
| | - Paola A. Palmeros-Suárez
- Departamento de Producción Agrícola, Centro Universitario de Ciencias Biológicas y Agropecuarias, Universidad de Guadalajara, Zapopan, Jalisco, Mexico
| | - John P. Délano-Frier
- Departamento de Biotecnología y Bioquímica, Centro de Investigación y de Estudios Avanzados del Instituto Politécnico Nacional, Unidad Irapuato, Irapuato, Guanajuato, Mexico
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Zhou YY, Jin Y, Liu SQ, Xu SL, Huang YX, Xu YS, Shi LG, Wang HB. Genome-wide identification and comparative analysis of lipocalin families in Lepidoptera with an emphasis on Bombyx mori. INSECT SCIENCE 2023; 30:15-30. [PMID: 35343650 DOI: 10.1111/1744-7917.13039] [Citation(s) in RCA: 1] [Impact Index Per Article: 1.0] [Reference Citation Analysis] [Abstract] [Key Words] [MESH Headings] [Track Full Text] [Subscribe] [Scholar Register] [Received: 02/12/2022] [Revised: 03/10/2022] [Accepted: 03/10/2022] [Indexed: 06/14/2023]
Abstract
Lipocalins exhibit functional diversity, including roles in retinol transport, invertebrate cryptic coloration, and stress response. However, genome-wide identification and characterization of lipocalin in the insect lineage have not been thoroughly explored. Here, we found that a lineage-specific expansion of the lipocalin genes in Lepidoptera occurred in large part due to tandem duplication events and several lipocalin genes involving insect coloration were expanded more via tandem duplication in butterflies. A comparative analysis of conserved motifs showed both conservation and divergence of lepidopteran lipocalin family protein structures during evolution. We observe dynamic changes in tissue expression preference of paralogs in Bombyx mori, suggesting differential contribution of paralogs to specific organ functions during evolution. Subcellular localization experiments revealed that lipocalins localize to the cytoplasm, nuclear membrane, or nucleus in BmN cells. Moreover, several lipocalin genes exhibited divergent responses to abiotic and biotic stresses, and 1 lipocalin gene was upregulated by 300 fold in B. mori. These results suggest that lipocalins act as signaling components in defense responses by mediating crosstalk between abiotic and biotic stress responses. This study deepens our understanding of the comprehensive characteristics of lipocalins in insects.
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Affiliation(s)
- Yan-Yan Zhou
- Department of Economic Zoology, College of Animal Sciences, Zhejiang University, Hangzhou, China
| | - Yue Jin
- Department of Economic Zoology, College of Animal Sciences, Zhejiang University, Hangzhou, China
| | - Shuai-Qi Liu
- Department of Economic Zoology, College of Animal Sciences, Zhejiang University, Hangzhou, China
| | - Shi-Liang Xu
- Department of Economic Zoology, College of Animal Sciences, Zhejiang University, Hangzhou, China
| | - Yu-Xin Huang
- Department of Economic Zoology, College of Animal Sciences, Zhejiang University, Hangzhou, China
| | - Yu-Song Xu
- Department of Economic Zoology, College of Animal Sciences, Zhejiang University, Hangzhou, China
| | - Lian-Gen Shi
- Department of Economic Zoology, College of Animal Sciences, Zhejiang University, Hangzhou, China
| | - Hua-Bing Wang
- Department of Economic Zoology, College of Animal Sciences, Zhejiang University, Hangzhou, China
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7
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Sierra J, McQuinn RP, Leon P. The role of carotenoids as a source of retrograde signals: impact on plant development and stress responses. JOURNAL OF EXPERIMENTAL BOTANY 2022; 73:7139-7154. [PMID: 35776102 DOI: 10.1093/jxb/erac292] [Citation(s) in RCA: 13] [Impact Index Per Article: 6.5] [Reference Citation Analysis] [Abstract] [Key Words] [MESH Headings] [Track Full Text] [Subscribe] [Scholar Register] [Received: 03/03/2022] [Accepted: 06/28/2022] [Indexed: 06/15/2023]
Abstract
Communication from plastids to the nucleus via retrograde signal cascades is essential to modulate nuclear gene expression, impacting plant development and environmental responses. Recently, a new class of plastid retrograde signals has emerged, consisting of acyclic and cyclic carotenoids and/or their degradation products, apocarotenoids. Although the biochemical identity of many of the apocarotenoid signals is still under current investigation, the examples described herein demonstrate the central roles that these carotenoid-derived signals play in ensuring plant development and survival. We present recent advances in the discovery of apocarotenoid signals and their role in various plant developmental transitions and environmental stress responses. Moreover, we highlight the emerging data exposing the highly complex signal transduction pathways underlying plastid to nucleus apocarotenoid retrograde signaling cascades. Altogether, this review summarizes the central role of the carotenoid pathway as a major source of retrograde signals in plants.
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Affiliation(s)
- Julio Sierra
- Departamento de Biología Molecular de Plantas, Instituto de Biotecnología, Universidad Nacional Autónoma de México, Av. Universidad, Ciudada de México, México
| | - Ryan P McQuinn
- School of Science, Western Sydney University, Penrith, NSW, Australia
| | - Patricia Leon
- Departamento de Biología Molecular de Plantas, Instituto de Biotecnología, Universidad Nacional Autónoma de México, Av. Universidad, Ciudada de México, México
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8
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Becerril-Espinosa A, Hernández-Herrera RM, Meza-Canales ID, Perez-Ramirez R, Rodríguez-Zaragoza FA, Méndez-Morán L, Sánchez-Hernández CV, Palmeros-Suárez PA, Palacios OA, Choix FJ, Juárez-Carrillo E, Lara-González MA, Hurtado-Oliva MÁ, Ocampo-Alvarez H. Habitat-adapted heterologous symbiont Salinispora arenicola promotes growth and alleviates salt stress in tomato crop plants. FRONTIERS IN PLANT SCIENCE 2022; 13:920881. [PMID: 36003821 PMCID: PMC9393590 DOI: 10.3389/fpls.2022.920881] [Citation(s) in RCA: 2] [Impact Index Per Article: 1.0] [Reference Citation Analysis] [Abstract] [Key Words] [Track Full Text] [Figures] [Subscribe] [Scholar Register] [Received: 04/15/2022] [Accepted: 07/20/2022] [Indexed: 06/15/2023]
Abstract
To ensure food security given the current scenario of climate change and the accompanying ecological repercussions, it is essential to search for new technologies and tools for agricultural production. Microorganism-based biostimulants are recognized as sustainable alternatives to traditional agrochemicals to enhance and protect agricultural production. Marine actinobacteria are a well-known source of novel compounds for biotechnological uses. In addition, former studies have suggested that coral symbiont actinobacteria may support co-symbiotic photosynthetic growth and tolerance and increase the probability of corals surviving abiotic stress. We have previously shown that this activity may also hold in terrestrial plants, at least for the actinobacteria Salinispora arenicola during induced heterologous symbiosis with a wild Solanaceae plant Nicotiana attenuata under in vitro conditions. Here, we further explore the heterologous symbiotic association, germination, growth promotion, and stress relieving activity of S. arenicola in tomato plants under agricultural conditions and dig into the possible associated mechanisms. Tomato plants were grown under normal and saline conditions, and germination, bacteria-root system interactions, plant growth, photosynthetic performance, and the expression of salt stress response genes were analyzed. We found an endophytic interaction between S. arenicola and tomato plants, which promotes germination and shoot and root growth under saline or non-saline conditions. Accordingly, photosynthetic and respective photoprotective performance was enhanced in line with the induced increase in photosynthetic pigments. This was further supported by the overexpression of thermal energy dissipation, which fine-tunes energy use efficiency and may prevent the formation of reactive oxygen species in the chloroplast. Furthermore, gene expression analyses suggested that a selective transport channel gene, SlHKT1,2, induced by S. arenicola may assist in relieving salt stress in tomato plants. The fine regulation of photosynthetic and photoprotective responses, as well as the inhibition of the formation of ROS molecules, seems to be related to the induced down-regulation of other salt stress response genes, such as SlDR1A-related genes or SlAOX1b. Our results demonstrate that the marine microbial symbiont S. arenicola establishes heterologous symbiosis in crop plants, promotes growth, and confers saline stress tolerance. Thus, these results open opportunities to further explore the vast array of marine microbes to enhance crop tolerance and food production under the current climate change scenario.
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Affiliation(s)
- Amayaly Becerril-Espinosa
- Departamento de Ecología, Centro Universitario de Ciencias Biológicas y Agropecuarias, Universidad de Guadalajara, Guadalajara, Mexico
- Consejo Nacional de Ciencia y Tecnología, Mexico City, Mexico
| | - Rosalba M. Hernández-Herrera
- Departamento de Botánica y Zoología, Centro Universitario de Ciencias Biológicas y Agropecuarias, Universidad de Guadalajara, Guadalajara, Mexico
| | - Ivan D. Meza-Canales
- Departamento de Ecología, Centro Universitario de Ciencias Biológicas y Agropecuarias, Universidad de Guadalajara, Guadalajara, Mexico
- Instituto Transdisciplinar de Investigación y Servicios, Centro Universitario de Ciencias Exactas e Ingenierías, Universidad de Guadalajara, Guadalajara, Mexico
| | - Rodrigo Perez-Ramirez
- Departamento de Ecología, Centro Universitario de Ciencias Biológicas y Agropecuarias, Universidad de Guadalajara, Guadalajara, Mexico
| | - Fabián A. Rodríguez-Zaragoza
- Departamento de Ecología, Centro Universitario de Ciencias Biológicas y Agropecuarias, Universidad de Guadalajara, Guadalajara, Mexico
| | - Lucila Méndez-Morán
- Departamento de Ecología, Centro Universitario de Ciencias Biológicas y Agropecuarias, Universidad de Guadalajara, Guadalajara, Mexico
| | - Carla V. Sánchez-Hernández
- Departamento de Producción Agrícola, Centro Universitario de Ciencias Biológicas y Agropecuarias, Universidad de Guadalajara, Guadalajara, Mexico
| | - Paola A. Palmeros-Suárez
- Departamento de Producción Agrícola, Centro Universitario de Ciencias Biológicas y Agropecuarias, Universidad de Guadalajara, Guadalajara, Mexico
| | - Oskar A. Palacios
- Facultad de Ciencias Químicas, Universidad Autónoma de Chihuahua, Chihuahua, Mexico
| | - Francisco J. Choix
- Consejo Nacional de Ciencia y Tecnología, Mexico City, Mexico
- Facultad de Ciencias Químicas, Universidad Autónoma de Chihuahua, Chihuahua, Mexico
| | - Eduardo Juárez-Carrillo
- Departamento de Ecología, Centro Universitario de Ciencias Biológicas y Agropecuarias, Universidad de Guadalajara, Guadalajara, Mexico
| | - Martha A. Lara-González
- Departamento de Ecología, Centro Universitario de Ciencias Biológicas y Agropecuarias, Universidad de Guadalajara, Guadalajara, Mexico
| | | | - Héctor Ocampo-Alvarez
- Departamento de Ecología, Centro Universitario de Ciencias Biológicas y Agropecuarias, Universidad de Guadalajara, Guadalajara, Mexico
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9
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Huang Q, Liao X, Yang X, Luo Y, Lin P, Zeng Q, Bai H, Jiang B, Pan Y, Zhang F, Zhang L, Jia Y, Liu Q. Lysine crotonylation of DgTIL1 at K72 modulates cold tolerance by enhancing DgnsLTP stability in chrysanthemum. PLANT BIOTECHNOLOGY JOURNAL 2021; 19:1125-1140. [PMID: 33368971 PMCID: PMC8196654 DOI: 10.1111/pbi.13533] [Citation(s) in RCA: 13] [Impact Index Per Article: 4.3] [Reference Citation Analysis] [Abstract] [Key Words] [MESH Headings] [Grants] [Track Full Text] [Subscribe] [Scholar Register] [Received: 08/04/2020] [Revised: 11/25/2020] [Accepted: 12/14/2020] [Indexed: 05/10/2023]
Abstract
Lysine crotonylation of proteins is a recently identified post-translational modification (PTM) in plants. However, the function of lysine-crotonylated proteins in response to abiotic stress in plants has not been reported. In this study, we identified a temperature-induced lipocalin-1-like gene (DgTIL1) from chrysanthemum and showed that it was notably induced in response to cold stress. Overexpression of DgTIL1 enhanced cold tolerance in transgenic chrysanthemum. Ubiquitin membrane yeast two-hybrid (MYTH) system and bimolecular fluorescence complementation (BIFC) assays showed that DgTIL1 interacts with a nonspecific lipid transfer protein (DgnsLTP), which can promote peroxidase (POD) gene expression and POD activity to reduce the accumulation of reactive oxygen species (ROS) and improve resistance to cold stress in DgnsLTP transgenic chrysanthemum. In addition, we found that DgTIL1 was lysine crotonylated at K72 in response to low temperature in chrysanthemum. Moreover, lysine crotonylation of DgTIL1 prevented DgnsLTP protein degradation in tobacco and chrysanthemum. Inhibition of DgnsLTP degradation by lysine crotonylation of DgTIL1 further enhanced POD expression and POD activity, reduced the accumulation of ROS under cold stress in DgTIL1 transgenic chrysanthemum, thus promoting the cold resistance of chrysanthemum.
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Affiliation(s)
- Qiuxiang Huang
- Department of Ornamental HorticultureSichuan Agricultural UniversityChengduChina
| | - Xiaoqin Liao
- Department of Ornamental HorticultureSichuan Agricultural UniversityChengduChina
| | - Xiaohan Yang
- Department of Ornamental HorticultureSichuan Agricultural UniversityChengduChina
| | - Yunchen Luo
- Department of Ornamental HorticultureSichuan Agricultural UniversityChengduChina
| | - Ping Lin
- Department of Ornamental HorticultureSichuan Agricultural UniversityChengduChina
| | - Qinhan Zeng
- Department of Ornamental HorticultureSichuan Agricultural UniversityChengduChina
| | - Huiru Bai
- Department of Ornamental HorticultureSichuan Agricultural UniversityChengduChina
| | - Beibei Jiang
- Department of Ornamental HorticultureSichuan Agricultural UniversityChengduChina
| | - Yuanzhi Pan
- Department of Ornamental HorticultureSichuan Agricultural UniversityChengduChina
| | - Fan Zhang
- Department of Ornamental HorticultureSichuan Agricultural UniversityChengduChina
| | - Lei Zhang
- Department of Ornamental HorticultureSichuan Agricultural UniversityChengduChina
| | - Yin Jia
- Department of Ornamental HorticultureSichuan Agricultural UniversityChengduChina
| | - Qinglin Liu
- Department of Ornamental HorticultureSichuan Agricultural UniversityChengduChina
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10
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López-Serrano L, Calatayud Á, López-Galarza S, Serrano R, Bueso E. Uncovering salt tolerance mechanisms in pepper plants: a physiological and transcriptomic approach. BMC PLANT BIOLOGY 2021; 21:169. [PMID: 33832439 PMCID: PMC8028838 DOI: 10.1186/s12870-021-02938-2] [Citation(s) in RCA: 4] [Impact Index Per Article: 1.3] [Reference Citation Analysis] [Abstract] [Key Words] [MESH Headings] [Track Full Text] [Subscribe] [Scholar Register] [Received: 05/08/2020] [Accepted: 03/25/2021] [Indexed: 05/08/2023]
Abstract
BACKGROUND Pepper is one of the most cultivated crops worldwide, but is sensitive to salinity. This sensitivity is dependent on varieties and our knowledge about how they can face such stress is limited, mainly according to a molecular point of view. This is the main reason why we decided to develop this transcriptomic analysis. Tolerant and sensitive accessions, respectively called A25 and A6, were grown for 14 days under control conditions and irrigated with 70 mM of NaCl. Biomass, different physiological parameters and differentially expressed genes were analysed to give response to differential salinity mechanisms between both accessions. RESULTS The genetic changes found between the accessions under both control and stress conditions could explain the physiological behaviour in A25 by the decrease of osmotic potential that could be due mainly to an increase in potassium and proline accumulation, improved growth (e.g. expansins), more efficient starch accumulation (e.g. BAM1), ion homeostasis (e.g. CBL9, HAI3, BASS1), photosynthetic protection (e.g. FIB1A, TIL, JAR1) and antioxidant activity (e.g. PSDS3, SnRK2.10). In addition, misregulation of ABA signalling (e.g. HAB1, ERD4, HAI3) and other stress signalling genes (e.g. JAR1) would appear crucial to explain the different sensitivity to NaCl in both accessions. CONCLUSIONS After analysing the physiological behaviour and transcriptomic results, we have concluded that A25 accession utilizes different strategies to cope better salt stress, being ABA-signalling a pivotal point of regulation. However, other strategies, such as the decrease in osmotic potential to preserve water status in leaves seem to be important to explain the defence response to salinity in pepper A25 plants.
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Affiliation(s)
- Lidia López-Serrano
- Centro de Citricultura y Producción Vegetal, Departamento de Horticultura, Instituto Valenciano de Investigaciones Agrarias, CV-315, Km 10,700 Moncada, Valencia, Spain
| | - Ángeles Calatayud
- Centro de Citricultura y Producción Vegetal, Departamento de Horticultura, Instituto Valenciano de Investigaciones Agrarias, CV-315, Km 10,700 Moncada, Valencia, Spain
| | - Salvador López-Galarza
- Departamento de Producción Vegetal, Universitat Politècnica de València, Valencia, Spain
| | - Ramón Serrano
- Instituto de Biología Molecular y Celular de Plantas, Universidad Politécnica de Valencia-C.S.I.C, Camino de Vera s/n, 46022, Valencia, Spain
| | - Eduardo Bueso
- Instituto de Biología Molecular y Celular de Plantas, Universidad Politécnica de Valencia-C.S.I.C, Camino de Vera s/n, 46022, Valencia, Spain.
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11
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Transcriptome Changes Reveal the Molecular Mechanisms of Humic Acid-Induced Salt Stress Tolerance in Arabidopsis. Molecules 2021; 26:molecules26040782. [PMID: 33546346 PMCID: PMC7913487 DOI: 10.3390/molecules26040782] [Citation(s) in RCA: 4] [Impact Index Per Article: 1.3] [Reference Citation Analysis] [Abstract] [Key Words] [Track Full Text] [Download PDF] [Figures] [Journal Information] [Subscribe] [Scholar Register] [Received: 12/31/2020] [Revised: 01/24/2021] [Accepted: 01/29/2021] [Indexed: 11/16/2022] Open
Abstract
Humic acid (HA) is a principal component of humic substances, which make up the complex organic matter that broadly exists in soil environments. HA promotes plant development as well as stress tolerance, however the precise molecular mechanism for these is little known. Here we conducted transcriptome analysis to elucidate the molecular mechanisms by which HA enhances salt stress tolerance. Gene Ontology Enrichment Analysis pointed to the involvement of diverse abiotic stress-related genes encoding HEAT-SHOCK PROTEINs and redox proteins, which were up-regulated by HA regardless of salt stress. Genes related to biotic stress and secondary metabolic process were mainly down-regulated by HA. In addition, HA up-regulated genes encoding transcription factors (TFs) involved in plant development as well as abiotic stress tolerance, and down-regulated TF genes involved in secondary metabolic processes. Our transcriptome information provided here provides molecular evidences and improves our understanding of how HA confers tolerance to salinity stress in plants.
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12
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Henri P, Rumeau D. Ectopic expression of human apolipoprotein D in Arabidopsis plants lacking chloroplastic lipocalin partially rescues sensitivity to drought and oxidative stress. PLANT PHYSIOLOGY AND BIOCHEMISTRY : PPB 2021; 158:265-274. [PMID: 33262014 DOI: 10.1016/j.plaphy.2020.11.009] [Citation(s) in RCA: 4] [Impact Index Per Article: 1.3] [Reference Citation Analysis] [Abstract] [Key Words] [MESH Headings] [Track Full Text] [Subscribe] [Scholar Register] [Received: 06/30/2020] [Accepted: 11/09/2020] [Indexed: 06/12/2023]
Abstract
The chloroplastic lipocalin (LCNP) is induced in response to various abiotic stresses including high light, dehydration and low temperature. It contributes to protection against oxidative damage promoted by adverse conditions by preventing accumulation of fatty acid hydroperoxides and lipid peroxidation. In contrast to animal lipocalins, LCNP is poorly characterized and the molecular mechanism by which it exerts protective effects during oxidative stress is largely unknown. LCNP is considered the ortholog of human apolipoprotein D (APOD), a protein whose lipid antioxidant function has been characterized. Here, we investigated whether APOD could functionally replace LCNP in Arabidopsis thaliana. We introduced APOD cDNA fused to a chloroplast transit peptide encoding sequence in an Arabidopsis LCNP KO mutant line and challenged the transgenic plants with different abiotic stresses. We demonstrated that expression of human APOD in Arabidopsis can partially compensate for the lack of the plastid lipocalin. The results are consistent with a conserved function of APOD and LCNP under stressful conditions. However, if the results obtained with the drought and oxidative stresses point to the protective effect of constitutive expression of APOD in plants lacking LCNP, this effect is not as effective as that conferred by LCNP overexpression. Moreover, when investigating APOD function in thylakoids after high light stress at low temperature, it appeared that APOD could not contribute to qH, a slowly reversible form of non-photochemical chlorophyll fluorescence quenching, as described for LCNP. This work provides a base of understanding the molecular mechanism underlying LCNP protective function.
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Affiliation(s)
- Patricia Henri
- Aix-Marseille Université, CEA, CNRS, UMR 7265, Institut Biosciences et Biotechnologies d'Aix-Marseille, Plant Protein Protection Laboratory, CEA/Cadarache, F-13108, Saint-Paul-lez-Durance, France
| | - Dominique Rumeau
- Aix-Marseille Université, CEA, CNRS, UMR 7265, Institut Biosciences et Biotechnologies d'Aix-Marseille, Plant Protein Protection Laboratory, CEA/Cadarache, F-13108, Saint-Paul-lez-Durance, France.
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13
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Hao D, Wang H, Niu L. Activation of six lipocalins genes' transcription under PCB18 stress in OsTIL-silenced Oryza sativa L. ECOTOXICOLOGY AND ENVIRONMENTAL SAFETY 2020; 204:111063. [PMID: 32791358 DOI: 10.1016/j.ecoenv.2020.111063] [Citation(s) in RCA: 0] [Impact Index Per Article: 0] [Reference Citation Analysis] [Abstract] [Key Words] [MESH Headings] [Track Full Text] [Subscribe] [Scholar Register] [Received: 01/06/2020] [Revised: 07/12/2020] [Accepted: 07/21/2020] [Indexed: 06/11/2023]
Abstract
The lipocalins genes have been assigned for involving in the responses of organisms to various stress factors. The function of lipocalins under PCB18 stress was addressed by pathway complementation in the Oryza sativa L. OsTIL-silenced mutant. The growth of wild type (WT) and OsTIL-silenced mutant (MT) callus were suppressed by PCB18, and MT varieties were inhibited more seriously than WT varieties. Meanwhile, only WT varieties showed "Hormesis" effect. Compared with WT (3 day > 90.0%, 6 day ≤45.5%), MT varieties kept high removing efficiency by HPLC analysis. Varied gene transcription after OsTIL silencing was demonstrated between two varieties, especially obvious under PCB stress. Silenced OsTIL induced more protective gene transcriptions by qPCR analysis, OsVDE at 3 day, OsCHL, OsZEP1, OsZEP2 and OsUN at 6 day and OsZEP2 at 9 day. PCB18 stress further irritated these genes transcription in MT varieties. The defense stagy in WT varieties was that the transcriptions of lipocalins were inhibited to reduce PCB18 accumulation and toxicity. OsTIL could effectively limit PCB18 accumulation and toxicity. After TIL lacking, OsCHL, OsZEP1, OsZEP2 and OsUN in mutant were strongly evoked to against PCB stress. Remarkably, OsUN and OsZEP2 gene expressions were responded to PCB18 stress in both two varieties.
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Affiliation(s)
- Dehou Hao
- University of Science and Technology Beijing School of Chemistry and Biological Engineering, Department of Biological Science and Engineering, 30 Xueyuan Road, Haidian District, Beijing, 100083 China
| | - Haiou Wang
- University of Science and Technology Beijing School of Chemistry and Biological Engineering, Department of Biological Science and Engineering, 30 Xueyuan Road, Haidian District, Beijing, 100083 China.
| | - Lin Niu
- University of Science and Technology Beijing School of Chemistry and Biological Engineering, 30 Xueyuan Road, Haidian District, Beijing, 100083 China
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14
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Wahyudi A, Fukazawa C, Motohashi R. Function of SlTILs and SlCHL under heat and oxidative stresses in tomato. PLANT BIOTECHNOLOGY (TOKYO, JAPAN) 2020; 37:335-341. [PMID: 33088197 PMCID: PMC7557659 DOI: 10.5511/plantbiotechnology.20.0422a] [Citation(s) in RCA: 0] [Impact Index Per Article: 0] [Reference Citation Analysis] [Abstract] [Key Words] [Track Full Text] [Subscribe] [Scholar Register] [Received: 03/29/2020] [Accepted: 04/22/2020] [Indexed: 06/11/2023]
Abstract
Lipocalins are very important proteins for stress resistance in plants. To better understand the function of tomato lipocalins, we observed responses to oxidative stress using over-expressed SlTIL1, SlTIL2, SlCHL, and silenced-plants. Significant differences in reactive oxygen species accumulation (oxidative damage) were observed in all tested plants under heat stress. Plants with over-expressed SlTIL1, SlTIL2, and SlCHL showed less oxidative damage compared with wild-type plants under heat stress. The expression of SlSODs was induced in over-expressed SlTIL1, SlTIL2, and SlCHL plants under normal and heat stress conditions. Furthermore, silenced PDS, SlTILs, and SlCHL plants showed slightly increasing oxidative damage under heat stress alongside with lower SlSODs under normal and stress conditions. These results suggest that SlTIL1, SlTIL2, and SlCHL were involved in antioxidant defense by eliminating ROS in tomato plants.
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Affiliation(s)
- Anung Wahyudi
- Politeknik Negeri Lampung, Jl. Soekarno-Hatta No. 10 Rajabasa, Bandar Lampung, Lampung, Indonesia
- Faculty of Agriculture, Shizuoka University, 836 Ohya, Suruga-ku, Shizuoka, Shizuoka 422-8529, Japan
| | - Chikako Fukazawa
- Faculty of Agriculture, Shizuoka University, 836 Ohya, Suruga-ku, Shizuoka, Shizuoka 422-8529, Japan
| | - Reiko Motohashi
- Faculty of Agriculture, Shizuoka University, 836 Ohya, Suruga-ku, Shizuoka, Shizuoka 422-8529, Japan
- Research Institute of Green Science and Technology, Shizuoka University, 836 Ohya, Suruga-ku, Shizuoka, Shizuoka 422-8529, Japan
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15
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Giné-Bordonaba J, Busatto N, Larrigaudière C, Lindo-García V, Echeverria G, Vrhovsek U, Farneti B, Biasioli F, De Quattro C, Rossato M, Delledonne M, Costa F. Investigation of the transcriptomic and metabolic changes associated with superficial scald physiology impaired by lovastatin and 1-methylcyclopropene in pear fruit (cv. "Blanquilla"). HORTICULTURE RESEARCH 2020; 7:49. [PMID: 32257235 PMCID: PMC7109095 DOI: 10.1038/s41438-020-0272-x] [Citation(s) in RCA: 9] [Impact Index Per Article: 2.3] [Reference Citation Analysis] [Abstract] [Key Words] [Track Full Text] [Subscribe] [Scholar Register] [Received: 08/29/2019] [Revised: 02/06/2020] [Accepted: 02/11/2020] [Indexed: 05/07/2023]
Abstract
To elucidate the physiology underlying the development of superficial scald in pears, susceptible "Blanquilla" fruit was treated with different compounds that either promoted (ethylene) or repressed (1-methylcyclopropene and lovastatin) the incidence of this disorder after 4 months of cold storage. Our data show that scald was negligible for the fruit treated with 1-methylcyclopropene or lovastatin, but highly manifested in untreated (78% incidence) or ethylene-treated fruit (97% incidence). The comparison between the fruit metabolomic profile and transcriptome evidenced a distinct reprogramming associated with each treatment. In all treated samples, cold storage led to an activation of a cold-acclimation-resistance mechanism, including the biosynthesis of very-long-chain fatty acids, which was especially evident in 1-methylcyclopropane-treated fruit. Among the treatments applied, only 1-methylcyclopropene inhibited ethylene production, hence supporting the involvement of this hormone in the development of scald. However, a common repression effect on the PPO gene combined with higher sorbitol content was found for both lovastatin and 1-methylcyclopropene-treated samples, suggesting also a non-ethylene-mediated process preventing the development of this disorder. The results presented in this work represent a step forward to better understand the physiological mechanisms governing the etiology of superficial scald in pears.
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Affiliation(s)
- Jordi Giné-Bordonaba
- XaRTA-Postharvest, Institute for Food and Agricultural Research and Technology (IRTA), Edifici Fruitcentre, Parc Científic i Tecnològic Agroalimentari de Lleida, 25003 Lleida, Spain
| | - Nicola Busatto
- Department of Genomics and Biology of Fruit Crops, Research and Innovation Centre, Fondazione Edmund Mach, via Mach 1, 38010 San Michele all’Adige, Trento, Italy
| | - Christian Larrigaudière
- XaRTA-Postharvest, Institute for Food and Agricultural Research and Technology (IRTA), Edifici Fruitcentre, Parc Científic i Tecnològic Agroalimentari de Lleida, 25003 Lleida, Spain
| | - Violeta Lindo-García
- XaRTA-Postharvest, Institute for Food and Agricultural Research and Technology (IRTA), Edifici Fruitcentre, Parc Científic i Tecnològic Agroalimentari de Lleida, 25003 Lleida, Spain
| | - Gemma Echeverria
- XaRTA-Postharvest, Institute for Food and Agricultural Research and Technology (IRTA), Edifici Fruitcentre, Parc Científic i Tecnològic Agroalimentari de Lleida, 25003 Lleida, Spain
| | - Urska Vrhovsek
- Department of Food Quality and Nutrition, Research and Innovation Centre, Fondazione Edmund Mach, via Mach 1, 38010 San Michele all’Adige, Trento Italy
| | - Brian Farneti
- Department of Genomics and Biology of Fruit Crops, Research and Innovation Centre, Fondazione Edmund Mach, via Mach 1, 38010 San Michele all’Adige, Trento, Italy
| | - Franco Biasioli
- Department of Food Quality and Nutrition, Research and Innovation Centre, Fondazione Edmund Mach, via Mach 1, 38010 San Michele all’Adige, Trento Italy
| | - Concetta De Quattro
- Department of Biotechnology, University of Verona, Strada le Grazie 15, 37134 Verona, Italy
| | - Marzia Rossato
- Department of Biotechnology, University of Verona, Strada le Grazie 15, 37134 Verona, Italy
| | - Massimo Delledonne
- Department of Biotechnology, University of Verona, Strada le Grazie 15, 37134 Verona, Italy
| | - Fabrizio Costa
- Department of Genomics and Biology of Fruit Crops, Research and Innovation Centre, Fondazione Edmund Mach, via Mach 1, 38010 San Michele all’Adige, Trento, Italy
- Center Agriculture Food Environment, University of Trento, via Mach 1, 38010 San Michele all’Adige, Trento Italy
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16
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Gismondi M, Daurelio LD, Maiorano C, Monti LL, Lara MV, Drincovich MF, Bustamante CA. Generation of fruit postharvest gene datasets and a novel motif analysis tool for functional studies: uncovering links between peach fruit heat treatment and cold storage responses. PLANTA 2020; 251:53. [PMID: 31950388 DOI: 10.1007/s00425-020-03340-2] [Citation(s) in RCA: 1] [Impact Index Per Article: 0.3] [Reference Citation Analysis] [Abstract] [Key Words] [MESH Headings] [Track Full Text] [Subscribe] [Scholar Register] [Received: 11/30/2019] [Accepted: 01/07/2020] [Indexed: 06/10/2023]
Abstract
A survey of developed fruit gene-specific datasets and the implementation of a novel cis-element analysis tool indicate specific transcription factors as novel regulatory actors under HT response and CI protection. Heat treatment (HT) prior to cold storage (CS) has been successfully applied to ameliorate fruit chilling injury (CI) disorders. Molecular studies have identified several HT-driven benefits and putative CI-protective molecules and mechanisms. However, bioinformatic tools and analyses able to integrate fruit-specific information are necessary to begin functional studies and breeding projects. In this work, a HT-responsive gene dataset (HTds) and four fruit expression datasets (FEds), containing gene-specific information from several species and postharvest conditions, were developed and characterized. FEds provided information about HT-responsive genes, not only validating their sensitivity to HT in different systems but also revealing most of them as CS-responsive. A special focus was given to peach heat treatment-sensitive transcriptional regulation by the development of a novel Perl motif analysis software (cisAnalyzer) and a curated plant cis-elements dataset (PASPds). cisAnalyzer is able to assess sequence motifs presence, localization, enrichment and discovery on biological sequences. Its implementation for the enrichment analysis of PASPds motifs on the promoters of HTds genes rendered particular cis-elements that indicate certain transcription factor (TF) families as responsible of fruit HT-sensitive transcription regulation. Phylogenetic and postharvest expression data of these TFs showed a functional diversity of TF families, with members able to fulfil roles under HT, CS and/or both treatments. All integrated datasets and cisAnalyzer tool were deposited in FruitGeneDB (https://www.cefobi-conicet.gov.ar/FruitGeneDB/search1.php), a new available database with a great potential for fruit gene functional studies, including the markers of HT and CS responses whose study will contribute to unravel HT-driven CI-protection and select tolerant cultivars.
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Affiliation(s)
- Mauro Gismondi
- Centro de Estudios Fotosintéticos y Bioquímicos (CEFOBI-CONICET), Facultad de Ciencias Bioquímicas y Farmacéuticas, Universidad Nacional de Rosario, Suipacha 531 (S2000), Rosario, Argentina.
- Consejo Nacional de Investigaciones Científicas y Técnicas (CONICET), Godoy Cruz 2290 (C1425FQB), Buenos Aires, Argentina.
| | - Lucas D Daurelio
- Laboratorio de Investigaciones en Fisiología y Biología Molecular Vegetal (LIFiBVe), Cátedra de Fisiología Vegetal, Facultad de Ciencias Agrarias, Universidad Nacional del Litoral, Kreder 2808 (S3080HOF), Esperanza, Argentina
- Consejo Nacional de Investigaciones Científicas y Técnicas (CONICET), Godoy Cruz 2290 (C1425FQB), Buenos Aires, Argentina
| | - Claudia Maiorano
- Consejo Nacional de Investigaciones Científicas y Técnicas (CONICET), Godoy Cruz 2290 (C1425FQB), Buenos Aires, Argentina
| | - Laura L Monti
- Centro de Estudios Fotosintéticos y Bioquímicos (CEFOBI-CONICET), Facultad de Ciencias Bioquímicas y Farmacéuticas, Universidad Nacional de Rosario, Suipacha 531 (S2000), Rosario, Argentina
- Consejo Nacional de Investigaciones Científicas y Técnicas (CONICET), Godoy Cruz 2290 (C1425FQB), Buenos Aires, Argentina
| | - Maria V Lara
- Centro de Estudios Fotosintéticos y Bioquímicos (CEFOBI-CONICET), Facultad de Ciencias Bioquímicas y Farmacéuticas, Universidad Nacional de Rosario, Suipacha 531 (S2000), Rosario, Argentina
- Consejo Nacional de Investigaciones Científicas y Técnicas (CONICET), Godoy Cruz 2290 (C1425FQB), Buenos Aires, Argentina
| | - Maria F Drincovich
- Centro de Estudios Fotosintéticos y Bioquímicos (CEFOBI-CONICET), Facultad de Ciencias Bioquímicas y Farmacéuticas, Universidad Nacional de Rosario, Suipacha 531 (S2000), Rosario, Argentina
- Consejo Nacional de Investigaciones Científicas y Técnicas (CONICET), Godoy Cruz 2290 (C1425FQB), Buenos Aires, Argentina
| | - Claudia A Bustamante
- Centro de Estudios Fotosintéticos y Bioquímicos (CEFOBI-CONICET), Facultad de Ciencias Bioquímicas y Farmacéuticas, Universidad Nacional de Rosario, Suipacha 531 (S2000), Rosario, Argentina.
- Consejo Nacional de Investigaciones Científicas y Técnicas (CONICET), Godoy Cruz 2290 (C1425FQB), Buenos Aires, Argentina.
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17
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Berka M, Luklová M, Dufková H, Berková V, Novák J, Saiz-Fernández I, Rashotte AM, Brzobohatý B, Černý M. Barley Root Proteome and Metabolome in Response to Cytokinin and Abiotic Stimuli. FRONTIERS IN PLANT SCIENCE 2020; 11:590337. [PMID: 33250914 PMCID: PMC7673457 DOI: 10.3389/fpls.2020.590337] [Citation(s) in RCA: 10] [Impact Index Per Article: 2.5] [Reference Citation Analysis] [Abstract] [Key Words] [Track Full Text] [Subscribe] [Scholar Register] [Received: 08/01/2020] [Accepted: 10/05/2020] [Indexed: 05/03/2023]
Abstract
Cytokinin is a phytohormone involved in the regulation of diverse developmental and physiological processes in plants. Its potential in biotechnology and for development of higher-yield and more resilient plants has been recognized, yet the molecular mechanisms behind its action are far from understood. In this report, the roots of barley seedlings were explored as a new source to reveal as yet unknown cytokinin-responsive proteins for crop improvement. Here we found significant differences reproducibly observed for 178 proteins, for which some of the revealed cytokinin-responsive pathways were confirmed in metabolome analysis, including alterations phenylpropanoid pathway, amino acid biosynthesis and ROS metabolism. Bioinformatics analysis indicated a significant overlap between cytokinin response and response to abiotic stress. This was confirmed by comparing proteome and metabolome profiles in response to drought, salinity or a period of temperature stress. The results illustrate complex abiotic stress response in the early development of model crop plant and confirm an extensive crosstalk between plant hormone cytokinin and response to temperature stimuli, water availability or salinity stress.
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Affiliation(s)
- Miroslav Berka
- Department of Molecular Biology and Radiobiology, Faculty of AgriSciences, Mendel University in Brno, Brno, Czechia
| | - Markéta Luklová
- Department of Molecular Biology and Radiobiology, Faculty of AgriSciences, Mendel University in Brno, Brno, Czechia
| | - Hana Dufková
- Department of Molecular Biology and Radiobiology, Faculty of AgriSciences, Mendel University in Brno, Brno, Czechia
| | - Veronika Berková
- Department of Molecular Biology and Radiobiology, Faculty of AgriSciences, Mendel University in Brno, Brno, Czechia
| | - Jan Novák
- Department of Molecular Biology and Radiobiology, Faculty of AgriSciences, Mendel University in Brno, Brno, Czechia
| | - Iñigo Saiz-Fernández
- Department of Molecular Biology and Radiobiology, Faculty of AgriSciences, Mendel University in Brno, Brno, Czechia
| | - Aaron M. Rashotte
- Department of Biological Sciences, Auburn University, Auburn, AL, United States
| | - Břetislav Brzobohatý
- Department of Molecular Biology and Radiobiology, Faculty of AgriSciences, Mendel University in Brno, Brno, Czechia
- Central European Institute of Technology, Faculty of AgriSciences, Mendel University in Brno, Brno, Czechia
| | - Martin Černý
- Department of Molecular Biology and Radiobiology, Faculty of AgriSciences, Mendel University in Brno, Brno, Czechia
- *Correspondence: Martin Černý,
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Mustafin ZS, Zamyatin VI, Konstantinov DK, Doroshkov AV, Lashin SA, Afonnikov DA. Phylostratigraphic Analysis Shows the Earliest Origination of the Abiotic Stress Associated Genes in A. thaliana. Genes (Basel) 2019; 10:genes10120963. [PMID: 31766757 PMCID: PMC6947294 DOI: 10.3390/genes10120963] [Citation(s) in RCA: 6] [Impact Index Per Article: 1.2] [Reference Citation Analysis] [Abstract] [Key Words] [MESH Headings] [Track Full Text] [Download PDF] [Figures] [Journal Information] [Subscribe] [Scholar Register] [Received: 08/28/2019] [Revised: 11/16/2019] [Accepted: 11/18/2019] [Indexed: 12/27/2022] Open
Abstract
Plants constantly fight with stressful factors as high or low temperature, drought, soil salinity and flooding. Plants have evolved a set of stress response mechanisms, which involve physiological and biochemical changes that result in adaptive or morphological changes. At a molecular level, stress response in plants is performed by genetic networks, which also undergo changes in the process of evolution. The study of the network structure and evolution may highlight mechanisms of plants adaptation to adverse conditions, as well as their response to stresses and help in discovery and functional characterization of the stress-related genes. We performed an analysis of Arabidopsis thaliana genes associated with several types of abiotic stresses (heat, cold, water-related, light, osmotic, salt, and oxidative) at the network level using a phylostratigraphic approach. Our results show that a substantial fraction of genes associated with various types of abiotic stress is of ancient origin and evolves under strong purifying selection. The interaction networks of genes associated with stress response have a modular structure with a regulatory component being one of the largest for five of seven stress types. We demonstrated a positive relationship between the number of interactions of gene in the stress gene network and its age. Moreover, genes of the same age tend to be connected in stress gene networks. We also demonstrated that old stress-related genes usually participate in the response for various types of stress and are involved in numerous biological processes unrelated to stress. Our results demonstrate that the stress response genes represent the ancient and one of the fundamental molecular systems in plants.
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Affiliation(s)
- Zakhar S. Mustafin
- The Institute of Cytology and Genetics of the Siberian Branch of the Russian Academy of Sciences (IC & G SB RAS), 630090 Novosibirsk, Russia; (Z.S.M.); (V.I.Z.); (D.K.K.); (A.V.D.)
- Kurchatov Genomics Center, Institute of Cytology and Genetics, SB RAS, 630090 Novosibirsk, Russia
| | - Vladimir I. Zamyatin
- The Institute of Cytology and Genetics of the Siberian Branch of the Russian Academy of Sciences (IC & G SB RAS), 630090 Novosibirsk, Russia; (Z.S.M.); (V.I.Z.); (D.K.K.); (A.V.D.)
- Kurchatov Genomics Center, Institute of Cytology and Genetics, SB RAS, 630090 Novosibirsk, Russia
- Faculty of Natural Sciences, Novosibirsk State University (NSU), 630090 Novosibirsk, Russia
| | - Dmitrii K. Konstantinov
- The Institute of Cytology and Genetics of the Siberian Branch of the Russian Academy of Sciences (IC & G SB RAS), 630090 Novosibirsk, Russia; (Z.S.M.); (V.I.Z.); (D.K.K.); (A.V.D.)
- Faculty of Natural Sciences, Novosibirsk State University (NSU), 630090 Novosibirsk, Russia
| | - Aleksej V. Doroshkov
- The Institute of Cytology and Genetics of the Siberian Branch of the Russian Academy of Sciences (IC & G SB RAS), 630090 Novosibirsk, Russia; (Z.S.M.); (V.I.Z.); (D.K.K.); (A.V.D.)
- Faculty of Natural Sciences, Novosibirsk State University (NSU), 630090 Novosibirsk, Russia
| | - Sergey A. Lashin
- The Institute of Cytology and Genetics of the Siberian Branch of the Russian Academy of Sciences (IC & G SB RAS), 630090 Novosibirsk, Russia; (Z.S.M.); (V.I.Z.); (D.K.K.); (A.V.D.)
- Kurchatov Genomics Center, Institute of Cytology and Genetics, SB RAS, 630090 Novosibirsk, Russia
- Faculty of Natural Sciences, Novosibirsk State University (NSU), 630090 Novosibirsk, Russia
- Correspondence: (S.A.L.); (D.A.A.); Tel.: +7-383-363-49-63 (D.A.A.)
| | - Dmitry A. Afonnikov
- The Institute of Cytology and Genetics of the Siberian Branch of the Russian Academy of Sciences (IC & G SB RAS), 630090 Novosibirsk, Russia; (Z.S.M.); (V.I.Z.); (D.K.K.); (A.V.D.)
- Kurchatov Genomics Center, Institute of Cytology and Genetics, SB RAS, 630090 Novosibirsk, Russia
- Faculty of Natural Sciences, Novosibirsk State University (NSU), 630090 Novosibirsk, Russia
- Correspondence: (S.A.L.); (D.A.A.); Tel.: +7-383-363-49-63 (D.A.A.)
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Jung JH, Kim HY, Kim HS, Jung SH. Transcriptome analysis of Panax ginseng response to high light stress. J Ginseng Res 2019; 44:312-320. [PMID: 32148414 PMCID: PMC7031748 DOI: 10.1016/j.jgr.2018.12.009] [Citation(s) in RCA: 12] [Impact Index Per Article: 2.4] [Reference Citation Analysis] [Abstract] [Key Words] [Track Full Text] [Download PDF] [Figures] [Journal Information] [Subscribe] [Scholar Register] [Received: 03/06/2018] [Revised: 06/18/2018] [Accepted: 12/24/2018] [Indexed: 11/28/2022] Open
Abstract
Background Ginseng (Panax ginseng Meyer) is an essential source of pharmaceuticals and functional foods. Ginseng productivity has been compromised by high light (HL) stress, which is one of the major abiotic stresses during the ginseng cultivation period. The genetic improvement for HL tolerance in ginseng could be facilitated by analyzing its genetic and molecular characteristics associated with HL stress. Methods Genome-wide analysis of gene expression was performed under HL and recovery conditions in 1-year-old Korean ginseng (P. ginseng cv. Chunpoong) using the Illumina HiSeq platform. After de novo assembly of transcripts, we performed expression profiling and identified differentially expressed genes (DEGs). Furthermore, putative functions of identified DEGs were explored using Gene Ontology terms and Kyoto Encyclopedia of Genes and Genome pathway enrichment analysis. Results A total of 438 highly expressed DEGs in response to HL stress were identified and selected from 29,184 representative transcripts. Among the DEGs, 326 and 114 transcripts were upregulated and downregulated, respectively. Based on the functional analysis, most upregulated and a significant number of downregulated transcripts were related to stress responses and cellular metabolic processes, respectively. Conclusion Transcriptome profiling could be a strategy to comprehensively elucidate the genetic and molecular mechanisms of HL tolerance and susceptibility. This study would provide a foundation for developing breeding and metabolic engineering strategies to improve the environmental stress tolerance of ginseng.
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Affiliation(s)
- Je Hyeong Jung
- Center for Natural Products Convergence Research, Korea Institute of Science and Technology (KIST), Gangneung, Republic of Korea
| | - Ho-Youn Kim
- Convergence Research Center for Smart Farm Solution, Korea Institute of Science and Technology (KIST), Gangneung, Republic of Korea
| | - Hyoung Seok Kim
- Center for Natural Products Convergence Research, Korea Institute of Science and Technology (KIST), Gangneung, Republic of Korea.,Convergence Research Center for Smart Farm Solution, Korea Institute of Science and Technology (KIST), Gangneung, Republic of Korea
| | - Sang Hoon Jung
- Center for Natural Products Convergence Research, Korea Institute of Science and Technology (KIST), Gangneung, Republic of Korea
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Wahyudi A, Ariyani D, Ma G, Inaba R, Fukasawa C, Nakano R, Motohashi R. Functional analyses of lipocalin proteins in tomato. PLANT BIOTECHNOLOGY (TOKYO, JAPAN) 2018; 35:303-312. [PMID: 31892817 PMCID: PMC6905218 DOI: 10.5511/plantbiotechnology.18.0620a] [Citation(s) in RCA: 6] [Impact Index Per Article: 1.0] [Reference Citation Analysis] [Abstract] [Key Words] [Track Full Text] [Subscribe] [Scholar Register] [Received: 05/31/2018] [Accepted: 06/20/2018] [Indexed: 05/30/2023]
Abstract
In this study, two temperature-induced lipocalin genes SlTIL1 and SlTIL2, and a chloroplastic lipocalin gene SlCHL were isolated from 'Micro-Tom' tomato. The coding sequences of SlTIL1, SlTIL2 and SlCHL were 558, 558, and 1002 bp, respectively. By TargetP analysis, no characteristic transit peptides were predicted in the proteins of SlTIL1 and SlTIL2, while a chloroplastic transit peptide was predicted in the protein of SlCHL. The subcellular localization results indicated that SlTIL1 and SlTIL2 proteins were major localized in the plasma membrane, while SlCHL was localized in chloroplast. To understand the function of lipocalins, transgenic tomato over-expressed SlTIL1, SlTIL2 and SlCHL and their virus-induced gene silencing (VIGS) plants were generated. The phenotypes were significantly affected when the SlTIL1, SlTIL2 and SlCHL were over-expressed or silenced by VIGS, which suggested that the three lipocalins played important roles in regulating the growth and development of tomato. In addition, the level of ROS (O2 - and H2O2) was low in SlTIL1, SlTIL2 and SlCHL over-expressed plants, while it was high in their silenced plants. The changes in the expression of SODs were consistent with the accumulations of ROS, which indicated that lipocalins might have an important role in abiotic oxidative stress tolerance in tomato plants. Especially SlTIL1 and SlTIL2 are localized around their membranes and protect them from ROS. The results will contribute to elucidating the functions of lipocalin in plants, and provide new strategies to improve the tolerance to abiotic stress in tomato plants.
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Affiliation(s)
- Anung Wahyudi
- Graduate School of Science and Technology, Shizuoka University, 3-5-1 Johoku, Naka-ku, Hamamatsu, Shizuoka 432-8561, Japan
- Faculty of Agriculture, Shizuoka University, 836 Ohya, Suruga-ku, Shizuoka, Shizuoka 422-8529, Japan
- Politeknik Negeri Lampung-Indonesia, Jl. Soekarno-Hatta no.10 Rajabasa, Bandar Lampung-Indonesia
| | - Dinni Ariyani
- Faculty of Agriculture, Shizuoka University, 836 Ohya, Suruga-ku, Shizuoka, Shizuoka 422-8529, Japan
| | - Gang Ma
- Faculty of Agriculture, Shizuoka University, 836 Ohya, Suruga-ku, Shizuoka, Shizuoka 422-8529, Japan
| | - Ryosuke Inaba
- Faculty of Agriculture, Shizuoka University, 836 Ohya, Suruga-ku, Shizuoka, Shizuoka 422-8529, Japan
| | - Chikako Fukasawa
- Faculty of Agriculture, Shizuoka University, 836 Ohya, Suruga-ku, Shizuoka, Shizuoka 422-8529, Japan
| | - Ryohei Nakano
- Graduate School of Environmental and Life Science, Okayama University, 1-1-1 Tsushimanaka, Kita-ku, Okayama, Okayama 700-8530, Japan
| | - Reiko Motohashi
- Graduate School of Science and Technology, Shizuoka University, 3-5-1 Johoku, Naka-ku, Hamamatsu, Shizuoka 432-8561, Japan
- Faculty of Agriculture, Shizuoka University, 836 Ohya, Suruga-ku, Shizuoka, Shizuoka 422-8529, Japan
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21
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The Positive Effect of Different 24-epiBL Pretreatments on Salinity Tolerance in Robinia pseudoacacia L. Seedlings. FORESTS 2018. [DOI: 10.3390/f10010004] [Citation(s) in RCA: 6] [Impact Index Per Article: 1.0] [Reference Citation Analysis] [Abstract] [Track Full Text] [Subscribe] [Scholar Register] [Indexed: 01/16/2023]
Abstract
As a brassinosteroid (BR), 24-epibrassinolide (24-epiBL) has been widely used to enhance the resistance of plants to multiple stresses, including salinity. Black locust (Robinia pseudoacacia L.) is a common species in degraded soils. In the current study, plants were pretreated with three levels of 24-epiBL (0.21, 0.62, or 1.04 µM) by either soaking seeds during the germination phase (Sew), foliar spraying (Spw), or root dipping (Diw) at the age of 6 months. The plants were exposed to salt stress (100 and 200 mM NaCl) via automatic drip-feeding (water content ~40%) for 45 days after each treatment. Increased salinity resulted in a decrease in net photosynthesis rate (Pn), stomatal conductance (Gs), intercellular:ambient CO2 concentration ratio (Ci/Ca), water-use efficiency (WUEi), and maximum quantum yield of photosystem II (PSII) (Fv/Fm). Non-photochemical quenching (NPQ) and thermal dissipation (Hd) were elevated under stress, which accompanied the reduction in the membrane steady index (MSI), water content (RWC), and pigment concentration (Chl a, Chl b, and Chl). Indicators of oxidative stress (i.e., malondialdehyde (MDA) and antioxidant enzymes (peroxidase (POD) and superoxide dismutase (SOD)) in leaves and Na+ content in chloroplasts increased accompanied by a reduction in chloroplastid K+ and Ca2+. At 200 mM NaCl, the chloroplast and thylakoid ultrastructures were severely disrupted. Exogenous 24-epiBL improved MSI, RWC, K+, and Ca2+ content, reduced Na+ levels, maintained chloroplast and thylakoid membrane structures, and enhanced the antioxidant ability in leaves. 24-epiBL also substantially alleviated stress-induced limitations of photosynthetic ability, reflected by elevated chlorophyll fluorescence, pigment levels, and Pn. The positive effects of alleviating salt stress in R. pseudoacacia seedlings in terms of treatment application was Diw > Sew > Spw, and the most positive impacts were seen with 1.04 µM 24-epiBL. These results provide diverse choice for 24-epiBL usage to defend against NaCl stress of a plant.
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Miki Y, Takahashi D, Kawamura Y, Uemura M. Temporal proteomics of Arabidopsis plasma membrane during cold- and de-acclimation. J Proteomics 2018; 197:71-81. [PMID: 30447334 DOI: 10.1016/j.jprot.2018.11.008] [Citation(s) in RCA: 27] [Impact Index Per Article: 4.5] [Reference Citation Analysis] [Abstract] [Key Words] [Track Full Text] [Journal Information] [Subscribe] [Scholar Register] [Received: 07/23/2018] [Revised: 10/27/2018] [Accepted: 11/09/2018] [Indexed: 01/19/2023]
Abstract
Freezing stress is one of the most important limiting factors of plant survival. Plants have developed a freezing adaptation mechanism upon sensing low temperatures (cold acclimation). Compositional changes in the plasma membrane, one of the initial sites of freezing injury, is prerequisite of achieving cold acclimation and have been investigated in several plant species. Conversely, the cold dehardening process at elevated temperatures (de-acclimation) has not yet been fully characterized and few studies have addressed the importance of the plasma membrane in the de-acclimation process. In the present study, we conducted shotgun proteomics with label-free semiquantification on plasma membrane fractions of Arabidopsis leaves during cold acclimation and de-acclimation. We consequently obtained a list of 873 proteins with significantly changed proteins in response to the two processes. Although the cold-acclimation-responsive proteins were globally returned to non-acclimated levels by de-acclimation, several representative cold-acclimation-responsive proteins tended to remain at higher abundance during de-acclimation process. Taken together, our results suggest plants deharden right after cold acclimation to restart growth and development but some cold-acclimation-induced changes of the plasma membrane may be maintained under de-acclimation to cope with the threat of sudden freezing during de-acclimation process. SIGNIFICANCE: Plant freezing tolerance can be enhanced by low temperature treatment (cold acclimation), while elevated temperatures right after cold acclimation can result in the dehardening of freezing tolerance (de-acclimation). However, the de-acclimation process, particularly its relevance to the plasma membrane as the primary site of freezing injury, has not been elucidated. In the present study, a comprehensive proteomic analysis of the plasma membrane during cold acclimation and de-acclimation was carried out as a first step to elucidating how plants respond to rising temperatures. Cold acclimation induced a number of proteomic changes as reported in previous studies, but most proteins, in general, immediately returned to NA levels during de-acclimation treatment for two days. However, the abundances of stress-related proteins (e.g. LTI29, COR78 and TIL) decreased slower than other functional proteins during de-acclimation. Therefore, plants harden during cold acclimation by aborting growth and development and accumulating stress-responsive proteins but seem to deharden quickly under subsequent elevated temperature to resume these processes while guarding against the threat of sudden temperature drops.
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Affiliation(s)
- Yushi Miki
- Department of Plant-bioscience, Iwate University, 3-18-8 Ueda, Morioka, Iwate 020-8550, Japan
| | - Daisuke Takahashi
- United Graduate School of Agricultural Sciences, Iwate University, 3-18-8 Ueda, Morioka, Iwate 020-8550, Japan; Max-Planck-Institut für Molekulare Pflanzenphysiologie, Am Mühlenberg 1, Potsdam D-14476, Germany
| | - Yukio Kawamura
- Department of Plant-bioscience, Iwate University, 3-18-8 Ueda, Morioka, Iwate 020-8550, Japan; United Graduate School of Agricultural Sciences, Iwate University, 3-18-8 Ueda, Morioka, Iwate 020-8550, Japan
| | - Matsuo Uemura
- Department of Plant-bioscience, Iwate University, 3-18-8 Ueda, Morioka, Iwate 020-8550, Japan; United Graduate School of Agricultural Sciences, Iwate University, 3-18-8 Ueda, Morioka, Iwate 020-8550, Japan.
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23
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Pawłowicz I, Waśkiewicz A, Perlikowski D, Rapacz M, Ratajczak D, Kosmala A. Remodeling of chloroplast proteome under salinity affects salt tolerance of Festuca arundinacea. PHOTOSYNTHESIS RESEARCH 2018; 137:475-492. [PMID: 29881986 DOI: 10.1007/s11120-018-0527-7] [Citation(s) in RCA: 4] [Impact Index Per Article: 0.7] [Reference Citation Analysis] [Abstract] [Key Words] [MESH Headings] [Track Full Text] [Subscribe] [Scholar Register] [Received: 10/16/2017] [Accepted: 05/29/2018] [Indexed: 06/08/2023]
Abstract
Acclimation of photosynthetic apparatus to variable environmental conditions is an important component of tolerance to dehydration stresses, including salinity. The present study deals with the research on alterations in chloroplast proteome of the forage grasses. Based on chlorophyll fluorescence parameters, two genotypes of a model grass species-Festuca arundinacea with distinct levels of salinity tolerance: low salt tolerant (LST) and high salt tolerant (HST), were selected. Next, two-dimensional electrophoresis and mass spectrometry were applied under both control and salt stress conditions to identify proteins accumulated differentially between these two genotypes. The physiological analysis revealed that under NaCl treatment the studied plants differed in photosystem II activity, water content, and ion accumulation. The differentially accumulated proteins included ATPase B, ATP synthase, ribulose-1,5-bisphosphate carboxylase large and small subunits, cytochrome b6-f complex iron-sulfur subunit, oxygen-evolving enhancer proteins (OEE), OEE1 and OEE2, plastidic fructose-bisphosphate aldolase (pFBA), and lipocalin. A higher level of lipocalin, potentially involved in prevention of lipid peroxidation under stress, was also observed in the HST genotype. Our physiological and proteomic results performed for the first time on the species of forage grasses clearly showed that chloroplast metabolism adjustment could be a crucial factor in developing salinity tolerance.
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Affiliation(s)
- Izabela Pawłowicz
- Institute of Plant Genetics, Polish Academy of Sciences, Strzeszynska 34, 60-479, Poznan, Poland.
| | - Agnieszka Waśkiewicz
- Department of Chemistry, Poznań University of Life Sciences, Wojska Polskiego 75, 60-637, Poznan, Poland
| | - Dawid Perlikowski
- Institute of Plant Genetics, Polish Academy of Sciences, Strzeszynska 34, 60-479, Poznan, Poland
| | - Marcin Rapacz
- Department of Plant Physiology, Faculty of Agriculture and Economics, University of Agriculture in Krakow, Podluzna 3, 30-239, Krakow, Poland
| | - Dominika Ratajczak
- Institute of Plant Genetics, Polish Academy of Sciences, Strzeszynska 34, 60-479, Poznan, Poland
| | - Arkadiusz Kosmala
- Institute of Plant Genetics, Polish Academy of Sciences, Strzeszynska 34, 60-479, Poznan, Poland
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24
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Cao K, Yu J, Xu D, Ai K, Bao E, Zou Z. Exposure to lower red to far-red light ratios improve tomato tolerance to salt stress. BMC PLANT BIOLOGY 2018; 18:92. [PMID: 29793435 PMCID: PMC5968587 DOI: 10.1186/s12870-018-1310-9] [Citation(s) in RCA: 23] [Impact Index Per Article: 3.8] [Reference Citation Analysis] [Abstract] [Key Words] [MESH Headings] [Grants] [Track Full Text] [Subscribe] [Scholar Register] [Received: 10/09/2017] [Accepted: 05/14/2018] [Indexed: 05/07/2023]
Abstract
BACKGROUND Red (R) and far-red (FR) light distinctly influence phytochrome-mediated initial tomato growth and development, and more recent evidence indicates that these spectra also modulate responses to a multitude of abiotic and biotic stresses. This research investigated whether different R: FR values affect tomato growth response and salinity tolerance. Tomato seedlings were exposed to different R: FR conditions (7.4, 1.2 and 0.8) under salinity stress (100 mM NaCl), and evaluated for their growth, biochemical changes, active reactive oxygen species (ROS) and ROS scavenging enzymes, pigments, rate of photosynthesis, and chlorophyll fluorescence. RESULTS The results showed that under conditions of salinity, tomato seedlings subjected to a lower R: FR value (0.8) significantly increased both their growth, proline content, chlorophyll content and net photosynthesis rate (Pn), while they decreased malondialdehyde (MDA) compared to the higher R: FR value (7.4). Under conditions of salinity, the lower R: FR value caused a decrease in both the superoxide anion (O2•-) and in hydrogen peroxide (H2O2) generation, an increase in the activities of superoxidase dismutase (SOD, EC 1.15.1.1), peroxidase (POD, EC 1.11.1.7) and catalase (CAT, EC 1.11.1.7). Tomato seedlings grown under the lower R: FR value and conditions of salinity showed a higher actual quantum yield of photosynthesis (ΦPSII), electron transport rate (ETR), and photochemical quenching (qP) than those exposed to a higher R: FR, indicating overall healthier growth. However, the salinity tolerance induced at the lower R: FR condition disappeared in the tomato phyB1 mutant. CONLUSION These results suggest that growing tomato with a lower R: FR value could improve seedlings' salinity tolerance, and phytochrome B1 play an very important role in this process. Therefore, different qualities of light can be used to efficiently develop abiotic stress tolerance in tomato cultivation.
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Affiliation(s)
- Kai Cao
- Horticulture College, Northwest A&F University, Yangling, Shaanxi China
- The Agriculture Ministry Key Laboratory of Agricultural Engineering in the Middle and Lower Reaches of Yangze River, Nanjing, China
- Guangxi Zhong Nong Fu Yu International Agricultural Science and Technology Co., Ltd, Yulin, Guangxi China
| | - Jie Yu
- Horticulture College, Northwest A&F University, Yangling, Shaanxi China
| | - Dawei Xu
- Horticulture College, Northwest A&F University, Yangling, Shaanxi China
| | - Kaiqi Ai
- Horticulture College, Northwest A&F University, Yangling, Shaanxi China
| | - Encai Bao
- Horticulture College, Northwest A&F University, Yangling, Shaanxi China
- The Agriculture Ministry Key Laboratory of Agricultural Engineering in the Middle and Lower Reaches of Yangze River, Nanjing, China
- Guangxi Zhong Nong Fu Yu International Agricultural Science and Technology Co., Ltd, Yulin, Guangxi China
| | - Zhirong Zou
- Horticulture College, Northwest A&F University, Yangling, Shaanxi China
- The Agriculture Ministry Key Laboratory of Agricultural Engineering in the Middle and Lower Reaches of Yangze River, Nanjing, China
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25
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Hoffman AM, Smith MD. Gene expression differs in codominant prairie grasses under drought. Mol Ecol Resour 2017; 18:334-346. [DOI: 10.1111/1755-0998.12733] [Citation(s) in RCA: 5] [Impact Index Per Article: 0.7] [Reference Citation Analysis] [Track Full Text] [Journal Information] [Subscribe] [Scholar Register] [Received: 07/27/2017] [Revised: 10/01/2017] [Accepted: 10/17/2017] [Indexed: 11/28/2022]
Affiliation(s)
- Ava M. Hoffman
- Department of Biology and Graduate Degree Program in Ecology Colorado State University Fort Collins CO USA
| | - Melinda D. Smith
- Department of Biology and Graduate Degree Program in Ecology Colorado State University Fort Collins CO USA
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26
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Lipid polymorphism in chloroplast thylakoid membranes - as revealed by 31P-NMR and time-resolved merocyanine fluorescence spectroscopy. Sci Rep 2017; 7:13343. [PMID: 29042649 PMCID: PMC5645462 DOI: 10.1038/s41598-017-13574-y] [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: 06/22/2017] [Accepted: 09/25/2017] [Indexed: 01/22/2023] Open
Abstract
Chloroplast thylakoid membranes contain virtually all components of the energy-converting photosynthetic machinery. Their energized state, driving ATP synthesis, is enabled by the bilayer organization of the membrane. However, their most abundant lipid species is a non-bilayer-forming lipid, monogalactosyl-diacylglycerol; the role of lipid polymorphism in these membranes is poorly understood. Earlier 31P-NMR experiments revealed the coexistence of a bilayer and a non-bilayer, isotropic lipid phase in spinach thylakoids. Packing of lipid molecules, tested by fluorescence spectroscopy of the lipophilic dye, merocyanine-540 (MC540), also displayed heterogeneity. Now, our 31P-NMR experiments on spinach thylakoids uncover the presence of a bilayer and three non-bilayer lipid phases; time-resolved fluorescence spectroscopy of MC540 also reveals the presence of multiple lipidic environments. It is also shown by 31P-NMR that: (i) some lipid phases are sensitive to the osmolarity and ionic strength of the medium, (ii) a lipid phase can be modulated by catalytic hydrogenation of fatty acids and (iii) a marked increase of one of the non-bilayer phases upon lowering the pH of the medium is observed. These data provide additional experimental evidence for the polymorphism of lipid phases in thylakoids and suggest that non-bilayer phases play an active role in the structural dynamics of thylakoid membranes.
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27
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Berterame NM, Bertagnoli S, Codazzi V, Porro D, Branduardi P. Temperature-induced lipocalin (TIL): a shield against stress-inducing environmental shocks in Saccharomyces cerevisiae. FEMS Yeast Res 2017; 17:4056149. [PMID: 28830085 DOI: 10.1093/femsyr/fox056] [Citation(s) in RCA: 2] [Impact Index Per Article: 0.3] [Reference Citation Analysis] [Abstract] [Key Words] [Track Full Text] [Journal Information] [Subscribe] [Scholar Register] [Received: 04/03/2017] [Accepted: 07/27/2017] [Indexed: 11/14/2022] Open
Abstract
The yeast Saccharomyces cerevisiae is a well-established workhorse, either for recombinant or natural products, thanks to its natural traits and easily editable metabolism. However, during a bio-based industrial process it meets multiple stresses generated by operative conditions such as non-optimal temperature, pH, oxygenation and product accumulation. The development of tolerant strains is therefore indispensable for the improvement of production, yield and productivity of fermentative processes. In this regard, plants as resilient organisms are a generous source for fishing genes and/or metabolites that can help the cell factory to counteract environmental constraints. Plants possess proteins named temperature-induced lipocalins, TIL, whose levels in the cells correlates with the tolerance to sudden temperature changes and with the scavenging of reactive oxygen species. In this work, the gene encoding for the Arabidopsis thaliana TIL protein was for the first time expressed in S. cerevisiae. The recombinant strain was compared and analysed against the parental counterpart under heat shock, freezing, exposure to organic acid and oxidative agents. In all the tested conditions, TIL expression conferred a higher tolerance to the stress imposed, making this strain a promising candidate for the development of robust cell factories able to overtake the major impairments of industrial processes.
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Affiliation(s)
- Nadia Maria Berterame
- Department of Biotechnology and Biosciences, University of Milano-Bicocca, Milan 20126, Italy
| | - Stefano Bertagnoli
- Department of Biotechnology and Biosciences, University of Milano-Bicocca, Milan 20126, Italy
| | - Vera Codazzi
- Department of Biotechnology and Biosciences, University of Milano-Bicocca, Milan 20126, Italy
| | - Danilo Porro
- Department of Biotechnology and Biosciences, University of Milano-Bicocca, Milan 20126, Italy
| | - Paola Branduardi
- Department of Biotechnology and Biosciences, University of Milano-Bicocca, Milan 20126, Italy
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Polle A, Chen S. On the salty side of life: molecular, physiological and anatomical adaptation and acclimation of trees to extreme habitats. PLANT, CELL & ENVIRONMENT 2015; 38:1794-816. [PMID: 25159181 DOI: 10.1111/pce.12440] [Citation(s) in RCA: 66] [Impact Index Per Article: 7.3] [Reference Citation Analysis] [Abstract] [Key Words] [MESH Headings] [Track Full Text] [Subscribe] [Scholar Register] [Received: 05/10/2014] [Revised: 08/11/2014] [Accepted: 08/17/2014] [Indexed: 05/04/2023]
Abstract
Saline and sodic soils that cannot be used for agriculture occur worldwide. Cultivating stress-tolerant trees to obtain biomass from salinized areas has been suggested. Various tree species of economic importance for fruit, fibre and timber production exhibit high salinity tolerance. Little is known about the mechanisms enabling tree crops to cope with high salinity for extended periods. Here, the molecular, physiological and anatomical adjustments underlying salt tolerance in glycophytic and halophytic model tree species, such as Populus euphratica in terrestrial habitats, and mangrove species along coastlines are reviewed. Key mechanisms that have been identified as mediating salt tolerance are discussed at scales from the genetic to the morphological level, including leaf succulence and structural adjustments of wood anatomy. The genetic and transcriptomic bases for physiological salt acclimation are salt sensing and signalling networks that activate target genes; the target genes keep reactive oxygen species under control, maintain the ion balance and restore water status. Evolutionary adaptation includes gene duplication in these pathways. Strategies for and limitations to tree improvement, particularly transgenic approaches for increasing salt tolerance by transforming trees with single and multiple candidate genes, are discussed.
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Affiliation(s)
- Andrea Polle
- Forstbotanik und Baumphysiologie, Büsgen-Institut, Georg-August Universität Göttingen, Göttingen, 37077, Germany
| | - Shaoliang Chen
- College of Biological Sciences and Technology, Beijing Forestry University, Beijing, 100083, China
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29
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Hernández-Gras F, Boronat A. A hydrophobic proline-rich motif is involved in the intracellular targeting of temperature-induced lipocalin. PLANT MOLECULAR BIOLOGY 2015; 88:301-11. [PMID: 25957952 PMCID: PMC4441748 DOI: 10.1007/s11103-015-0326-x] [Citation(s) in RCA: 11] [Impact Index Per Article: 1.2] [Reference Citation Analysis] [Abstract] [Key Words] [MESH Headings] [Track Full Text] [Subscribe] [Scholar Register] [Received: 10/09/2014] [Accepted: 04/27/2015] [Indexed: 05/05/2023]
Abstract
Temperature-induced lipocalins (TILs) play an essential role in the response of plants to different abiotic stresses. In agreement with their proposed role in protecting membrane lipids, TILs have been reported to be associated to cell membranes. However, TILs show an overall hydrophilic character and do not contain any signal for membrane targeting nor hydrophobic sequences that could represent transmembrane domains. Arabidopsis TIL (AtTIL) is considered the ortholog of human ApoD, a protein known to associate to membranes through a short hydrophobic loop protruding from strands 5 and 6 of the lipocalin β-barrel. An equivalent loop (referred to as HPR motif) is also present between β-strands 5 and 6 of TILs. The HPR motif, which is highly conserved among TIL proteins, extends over as short stretch of eight amino acids and contains four invariant proline residues. Subcellular localization studies have shown that TILs are targeted to a variety of cell membranes and organelles. We have also found that the HPR motif is necessary and sufficient for the intracellular targeting of TILs. Modeling studies suggest that the HPR motif may directly anchor TILs to cell membranes, favoring in this way further contact with the polar group of membrane lipids. However, some particular features of the HPR motif open the possibility that targeting of TILs to cell membranes could be mediated by interaction with other proteins. The functional analysis of the HPR motif unveils the existence of novel mechanisms involved in the intracellular targeting of proteins in plants.
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Affiliation(s)
- Francesc Hernández-Gras
- />Departament de Bioquímica i Biologia Molecular, Facultat de Biologia, Universitat de Barcelona, Avda. Diagonal 643, 08028 Barcelona, Spain
- />Centre de Recerca en Agrigenòmica (CRAG), Consorci CSIC-IRTA-UAB-UB, Campus Universitat Autònoma de Barcelona, Bellaterra-Cerdanyola del Vallès, 08193 Barcelona, Spain
| | - Albert Boronat
- />Departament de Bioquímica i Biologia Molecular, Facultat de Biologia, Universitat de Barcelona, Avda. Diagonal 643, 08028 Barcelona, Spain
- />Centre de Recerca en Agrigenòmica (CRAG), Consorci CSIC-IRTA-UAB-UB, Campus Universitat Autònoma de Barcelona, Bellaterra-Cerdanyola del Vallès, 08193 Barcelona, Spain
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Song Q, Wang S, Zhang G, Li Y, Li Z, Guo J, Niu N, Wang J, Ma S. Comparative proteomic analysis of a membrane-enriched fraction from flag leaves reveals responses to chemical hybridization agent SQ-1 in wheat. FRONTIERS IN PLANT SCIENCE 2015; 6:669. [PMID: 26379693 PMCID: PMC4549638 DOI: 10.3389/fpls.2015.00669] [Citation(s) in RCA: 7] [Impact Index Per Article: 0.8] [Reference Citation Analysis] [Abstract] [Key Words] [Track Full Text] [Subscribe] [Scholar Register] [Received: 05/20/2015] [Accepted: 08/13/2015] [Indexed: 05/21/2023]
Abstract
The induction of wheat male fertile lines by using the chemical hybridizing agent SQ-1 (CHA-SQ-1) is an effective approach in the utilization of heterosis; however, the molecular basis of male fertility remains unknown. Wheat flag leaves are the initial receptors of CHA-SQ-1 and their membrane structure plays a vital role in response to CHA-SQ-1 stress. To investigate the response of wheat flag leaves to CHA-SQ-1 stress, we compared their quantitative proteomic profiles in the absence and presence of CHA-SQ-1. Our results indicated that wheat flag leaves suffered oxidative stress during CHA-SQ-1 treatments. Leaf O2 (-), H2O2, and malonaldehyde levels were significantly increased within 10 h after CHA-SQ-1 treatment, while the activities of major antioxidant enzymes such as superoxide dismutase, catalase, and guaiacol peroxidase were significantly reduced. Proteome profiles of membrane-enriched fraction showed a change in the abundance of a battery of membrane proteins involved in multiple biological processes. These variable proteins mainly impaired photosynthesis, ATP synthesis protein mechanisms and were involved in the response to stress. These results provide an explanation of the relationships between membrane proteomes and anther abortion and the practical application of CHA for hybrid breeding.
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Affiliation(s)
| | | | - Gaisheng Zhang
- *Correspondence: Gaisheng Zhang, College of Agronomy, Northwest Agriculture and Forestry University, National Yangling Agricultural Biotechnology and Breeding Center, Yangling Branch of State Wheat Improvement Centre, Wheat Breeding Engineering Research Center, Ministry of Education, Key Laboratory of Crop Heterosis of Shaanxi Province, Yangling 712100, China,
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