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Almoguera C, Prieto-Dapena P, Carranco R, Ruiz JL, Jordano J. Heat Stress Factors Expressed during Seed Maturation Differentially Regulate Seed Longevity and Seedling Greening. PLANTS 2020; 9:plants9030335. [PMID: 32155706 PMCID: PMC7154816 DOI: 10.3390/plants9030335] [Citation(s) in RCA: 5] [Impact Index Per Article: 1.3] [Reference Citation Analysis] [Abstract] [Key Words] [Track Full Text] [Download PDF] [Figures] [Subscribe] [Scholar Register] [Received: 01/07/2020] [Revised: 02/27/2020] [Accepted: 02/28/2020] [Indexed: 12/14/2022]
Abstract
Heat Stress Factor A9 (A9), a seed-specific transcription factor contributing to seed longevity, also enhances phytochrome-dependent seedling greening. The RNA-seq analyses of imbibed-seed transcripts here reported indicated potential additional effects of A9 on cryptochrome-mediated blue-light responses. These analyses also suggested that in contrast to the A9 effects on longevity, which require coactivation by additional factors as A4a, A9 alone might suffice for the enhancement of photomorphogenesis at the seedling stage. We found that upon its seed-specific overexpression, A9 indeed enhanced the expected blue-light responses. Comparative loss-of-function analyses of longevity and greening, performed by similar expression of dominant-negative and inactive forms of A9, not only confirmed the additional greening effects of A9, but also were consistent with A9 not requiring A4a (or additional factors) for the greening effects. Our results strongly indicate that A9 would differentially regulate seed longevity and photomorphogenesis at the seedling stage, A9 alone sufficing for both the phytochrome- and cryptochrome-dependent greening enhancement effects.
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Affiliation(s)
- Concepción Almoguera
- IRNAS, Av. Reina Mercedes 10, 41012 Sevilla, CSIC, Spain; (C.A.); (P.P.-D.); (R.C.)
| | - Pilar Prieto-Dapena
- IRNAS, Av. Reina Mercedes 10, 41012 Sevilla, CSIC, Spain; (C.A.); (P.P.-D.); (R.C.)
| | - Raúl Carranco
- IRNAS, Av. Reina Mercedes 10, 41012 Sevilla, CSIC, Spain; (C.A.); (P.P.-D.); (R.C.)
| | - José Luis Ruiz
- IPBLN, Av. del Conocimiento 17, 18016 Armilla, Granada, CSIC, Spain;
| | - Juan Jordano
- IRNAS, Av. Reina Mercedes 10, 41012 Sevilla, CSIC, Spain; (C.A.); (P.P.-D.); (R.C.)
- Correspondence:
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Li GL, Zhang HN, Shao H, Wang GY, Zhang YY, Zhang YJ, Zhao LN, Guo XL, Sheteiwy MS. ZmHsf05, a new heat shock transcription factor from Zea mays L. improves thermotolerance in Arabidopsis thaliana and rescues thermotolerance defects of the athsfa2 mutant. PLANT SCIENCE : AN INTERNATIONAL JOURNAL OF EXPERIMENTAL PLANT BIOLOGY 2019; 283:375-384. [PMID: 31128708 DOI: 10.1016/j.plantsci.2019.03.002] [Citation(s) in RCA: 13] [Impact Index Per Article: 2.6] [Reference Citation Analysis] [Abstract] [Key Words] [MESH Headings] [Track Full Text] [Subscribe] [Scholar Register] [Received: 12/04/2018] [Revised: 03/07/2019] [Accepted: 03/08/2019] [Indexed: 05/05/2023]
Abstract
High temperature directly affects the yield and quality of crops. Plant Hsfs play vital roles in plant response to heat shock. In the present study, ZmHsf05 was isolated from maize (Zea mays L.) using homologous cloning methods. The sequencing analysis demonstrated that CDS of ZmHsf05 was 1080 bp length and encoded a protein containing 359 amino acids. The putative amino acid sequence of ZmHsf05 contained typical Hsf domains, such as DBD, OD, NLS and AHA motif. Subcellular localization assays displayed that the ZmHsf05 is localized to the nucleus. ZmHsf05 was expressed in many maize tissues and its expression level was increased by heat stress treatment. ZmHsf05 rescued the reduced thermotolerance of the athsfa2 mutant in Arabidopsis seedlings. Arabidopsis seedlings of ZmHsf05-overexpressing increased both the basal and acquired thermotolerances. After heat stress, the ZmHsf05-overexpressing lines showed enhanced survival rate and chlorophyll content compared with WT seedlings. The expression of Hsps was up-regulated in the ZmHsf05-overexpressing Arabidopsis lines after heat stress treatment. These results suggested that ZmHsf05 plays an important role in both basal and acquired thermotolerance in plants.
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Affiliation(s)
- Guo-Liang Li
- Plant Genetic Engineering Center of Hebei Province/Institute of Genetics and Physiology, Hebei Academy of Agriculture and Forestry Sciences, Shijiazhuang 050051, PR China
| | - Hua-Ning Zhang
- Plant Genetic Engineering Center of Hebei Province/Institute of Genetics and Physiology, Hebei Academy of Agriculture and Forestry Sciences, Shijiazhuang 050051, PR China
| | - Hongbo Shao
- Salt-soil Agricultural Center, Key Laboratory of Agricultural Environment in the Lower Reaches of Yangtze River Plain, Institute of Agriculture Resources and Environment, Jiangsu Academy of Agriculture Science(JAAS), Nanjing, 210014, PR China; College of Environment and Safety Engineering, Qingdao University of Science & Technology, Qingdao 266000, China; Jiangsu Key Laboratory for Bioresources of Saline Soils, Jiangsu Synthetic Innovation Center for Coastal Bio-agriculture, Yancheng Teachers University, Yancheng, 224002, PR China.
| | - Gui-Yan Wang
- Faculty of Agronomy, Hebei Agricultural University, Baoding, 071001, PR China.
| | - Yuan-Yuan Zhang
- Plant Genetic Engineering Center of Hebei Province/Institute of Genetics and Physiology, Hebei Academy of Agriculture and Forestry Sciences, Shijiazhuang 050051, PR China; College of Life Science, Hebei Normal University, Shijiazhuang 050024, PR China
| | - Yu-Jie Zhang
- Plant Genetic Engineering Center of Hebei Province/Institute of Genetics and Physiology, Hebei Academy of Agriculture and Forestry Sciences, Shijiazhuang 050051, PR China; College of Agriculture and Forestry Science and Technology, Hebei North University, Zhangjiakou, 075000, PR China
| | - Li-Na Zhao
- Plant Genetic Engineering Center of Hebei Province/Institute of Genetics and Physiology, Hebei Academy of Agriculture and Forestry Sciences, Shijiazhuang 050051, PR China; Faculty of Agronomy, Hebei Agricultural University, Baoding, 071001, PR China
| | - Xiu-Lin Guo
- Plant Genetic Engineering Center of Hebei Province/Institute of Genetics and Physiology, Hebei Academy of Agriculture and Forestry Sciences, Shijiazhuang 050051, PR China.
| | - Mohamed Salah Sheteiwy
- Salt-soil Agricultural Center, Key Laboratory of Agricultural Environment in the Lower Reaches of Yangtze River Plain, Institute of Agriculture Resources and Environment, Jiangsu Academy of Agriculture Science(JAAS), Nanjing, 210014, PR China
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Wei Y, Liu G, Chang Y, He C, Shi H. Heat shock transcription factor 3 regulates plant immune response through modulation of salicylic acid accumulation and signalling in cassava. MOLECULAR PLANT PATHOLOGY 2018; 19:2209-2220. [PMID: 29660238 PMCID: PMC6638013 DOI: 10.1111/mpp.12691] [Citation(s) in RCA: 11] [Impact Index Per Article: 1.8] [Reference Citation Analysis] [Abstract] [Key Words] [MESH Headings] [Track Full Text] [Subscribe] [Scholar Register] [Received: 12/21/2017] [Revised: 02/27/2018] [Accepted: 04/09/2018] [Indexed: 05/05/2023]
Abstract
As the terminal components of signal transduction, heat stress transcription factors (Hsfs) mediate the activation of multiple genes responsive to various stresses. However, the information and functional analysis are very limited in non-model plants, especially in cassava (Manihot esculenta), one of the most important crops in tropical areas. In this study, 32 MeHsfs were identified from the cassava genome; the evolutionary tree, gene structures and motifs were also analysed. Gene expression analysis found that MeHsfs were commonly regulated by Xanthomonas axonopodis pv. manihotis (Xam). Amongst these MeHsfs, MeHsf3 was specifically located in the cell nucleus and showed transcriptionally activated activity on heat stress elements (HSEs). Through transient expression in Nicotiana benthamiana leaves and virus-induced gene silencing (VIGS) in cassava, we identified the essential role of MeHsf3 in plant disease resistance, by regulating the transcripts of Enhanced Disease Susceptibility 1 (EDS1) and pathogen-related gene 4 (PR4). Notably, as regulators of defence susceptibility, MeEDS1 and MePR4 were identified as direct targets of MeHsf3. Moreover, the disease sensitivity of MeHsf3- and MeEDS1-silenced plants could be restored by exogenous salicylic acid (SA) treatment. Taken together, this study highlights the involvement of MeHsf3 in defence resistance through the transcriptional activation of MeEDS1 and MePR4.
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Affiliation(s)
- Yunxie Wei
- Hainan Key Laboratory for Sustainable Utilization of Tropical BioresourcesInstitute of Tropical Agriculture and Forestry, Hainan UniversityHaikou 570228China
| | - Guoyin Liu
- Hainan Key Laboratory for Sustainable Utilization of Tropical BioresourcesInstitute of Tropical Agriculture and Forestry, Hainan UniversityHaikou 570228China
| | - Yanli Chang
- Hainan Key Laboratory for Sustainable Utilization of Tropical BioresourcesInstitute of Tropical Agriculture and Forestry, Hainan UniversityHaikou 570228China
| | - Chaozu He
- Hainan Key Laboratory for Sustainable Utilization of Tropical BioresourcesInstitute of Tropical Agriculture and Forestry, Hainan UniversityHaikou 570228China
| | - Haitao Shi
- Hainan Key Laboratory for Sustainable Utilization of Tropical BioresourcesInstitute of Tropical Agriculture and Forestry, Hainan UniversityHaikou 570228China
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Du X, Li W, Sheng L, Deng Y, Wang Y, Zhang W, Yu K, Jiang J, Fang W, Guan Z, Chen F, Chen S. Over-expression of chrysanthemum CmDREB6 enhanced tolerance of chrysanthemum to heat stress. BMC PLANT BIOLOGY 2018; 18:178. [PMID: 30180804 PMCID: PMC6122619 DOI: 10.1186/s12870-018-1400-8] [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: 11/18/2017] [Accepted: 08/28/2018] [Indexed: 05/18/2023]
Abstract
BACKGROUND Chrysanthemum is among the top ten traditional flowers in China, and one of the four major cut flowers in the world, but the growth of chrysanthemum is severely restricted by high temperatures which retard growth and cause defects in flowers. DREB (dehydration-responsive element-binding) transcription factors play important roles in the response to abiotic and biotic stresses. However, whether the DREB A-6 subgroup is involved in heat tolerance has not been reported conclusively. RESULT In the present study, CmDREB6 was cloned from chrysanthemum (Chrysanthemum morifolium) 'Jinba'. CmDREB6, containing a typical AP2/ERF domain, was classed into the DREB A-6 subgroup and shared highest homology with Cichorium intybus L. CiDREB6 (73%). CmDREB6 was expressed at its highest levels in the leaf. The CmDREB6 protein localized to the nucleus. Based on the yeast one hybrid assay, CmDREB6 showed transcription activation activity in yeast, and the transcriptional activation domain was located in the 3 'end ranging from 230 to 289 amino acids residues. CmDREB6 overexpression enhanced the tolerance of chrysanthemum to heat. The survival rate of two transgenic lines was as high as 85%, 50%, respectively, in contrast to 3.8% of wild-type (WT). Over-expression of CmDREB6 promoted the expression of CmHsfA4, CmHSP90, and the active oxygen scavenging genes CmSOD and CmCAT. CONCLUSION In this study, DREB A-6 subgroup gene CmDREB6 was cloned from chrysanthemum 'Jinba'. Overexpression of CmDREB6 enhanced heat tolerance of chrysanthemum by regulating genes involved in the heat shock response and ROS homeogenesis.
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Affiliation(s)
- Xinping Du
- College of Horticulture, Nanjing Agricultural University, Nanjing, 210095 China
| | - Wenyan Li
- College of Horticulture, Nanjing Agricultural University, Nanjing, 210095 China
| | - Liping Sheng
- College of Horticulture, Nanjing Agricultural University, Nanjing, 210095 China
| | - Ye Deng
- College of Horticulture, Nanjing Agricultural University, Nanjing, 210095 China
| | - Yinjie Wang
- College of Horticulture, Nanjing Agricultural University, Nanjing, 210095 China
| | - Wanwan Zhang
- College of Horticulture, Nanjing Agricultural University, Nanjing, 210095 China
| | - Kaili Yu
- College of Horticulture, Nanjing Agricultural University, Nanjing, 210095 China
| | - Jiafu Jiang
- College of Horticulture, Nanjing Agricultural University, Nanjing, 210095 China
| | - Weimin Fang
- College of Horticulture, Nanjing Agricultural University, Nanjing, 210095 China
| | - Zhiyong Guan
- College of Horticulture, Nanjing Agricultural University, Nanjing, 210095 China
| | - Fadi Chen
- College of Horticulture, Nanjing Agricultural University, Nanjing, 210095 China
| | - Sumei Chen
- College of Horticulture, Nanjing Agricultural University, Nanjing, 210095 China
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Shu Y, Li W, Zhao J, Zhang S, Xu H, Liu Y, Guo C. Transcriptome sequencing analysis of alfalfa reveals CBF genes potentially playing important roles in response to freezing stress. Genet Mol Biol 2017; 40:824-833. [PMID: 29111565 PMCID: PMC5738619 DOI: 10.1590/1678-4685-gmb-2017-0053] [Citation(s) in RCA: 21] [Impact Index Per Article: 3.0] [Reference Citation Analysis] [Abstract] [Track Full Text] [Download PDF] [Figures] [Journal Information] [Subscribe] [Scholar Register] [Received: 03/05/2017] [Accepted: 06/23/2017] [Indexed: 12/31/2022] Open
Abstract
Alfalfa (Medicago sativa L.) is an important perennial forage, with high nutritional value, which is widely grown in the world. Because of low freezing tolerance, its distribution and production are threatened and limited by winter weather. To understand the complex regulation mechanisms of freezing tolerance in alfalfa, we performed transcriptome sequencing analysis under cold (4 °C) and freezing (-8 °C) stresses. More than 66 million reads were generated, and we identified 5767 transcripts differentially expressed in response to cold and/or freezing stresses. These results showed that these genes were mainly classified as response to stress, transcription regulation, hormone signaling pathway, antioxidant, nodule morphogenesis, etc., implying their important roles in response to cold and freezing stresses. Furthermore, nine CBF transcripts differentially expressed were homologous to CBF genes of Mt-FTQTL6 site, conferring freezing tolerance in M. truncatula, which indicated that a genetic mechanism controlling freezing tolerance was conservative between M. truncatula and M. sativa. In summary, this transcriptome dataset highlighted the gene regulation response to cold and/or freezing stresses in alfalfa, which provides a valuable resource for future identification and functional analysis of candidate genes in determining freezing tolerance.
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Affiliation(s)
- Yongjun Shu
- College of Life Science and Technology, Harbin Normal University, Harbin Heilongjiang, China
| | - Wei Li
- College of Life Science and Technology, Harbin Normal University, Harbin Heilongjiang, China
| | - Jinyue Zhao
- College of Life Science and Technology, Harbin Normal University, Harbin Heilongjiang, China
| | - Sijia Zhang
- College of Life Science and Technology, Harbin Normal University, Harbin Heilongjiang, China
| | - Hanyun Xu
- College of Life Science and Technology, Harbin Normal University, Harbin Heilongjiang, China
| | - Ying Liu
- College of Life Science and Technology, Harbin Normal University, Harbin Heilongjiang, China
| | - Changhong Guo
- College of Life Science and Technology, Harbin Normal University, Harbin Heilongjiang, China
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Heat shock transcription factors in banana: genome-wide characterization and expression profile analysis during development and stress response. Sci Rep 2016; 6:36864. [PMID: 27857174 PMCID: PMC5114564 DOI: 10.1038/srep36864] [Citation(s) in RCA: 18] [Impact Index Per Article: 2.3] [Reference Citation Analysis] [Abstract] [Track Full Text] [Download PDF] [Figures] [Journal Information] [Subscribe] [Scholar Register] [Received: 07/21/2016] [Accepted: 10/21/2016] [Indexed: 12/01/2022] Open
Abstract
Banana (Musa acuminata) is one of the most popular fresh fruits. However, the rapid spread of fungal pathogen Fusarium oxysporum f. sp. cubense (Foc) in tropical areas severely affected banana growth and production. Thus, it is very important to identify candidate genes involved in banana response to abiotic stress and pathogen infection, as well as the molecular mechanism and possible utilization for genetic breeding. Heat stress transcription factors (Hsfs) are widely known for their common involvement in various abiotic stresses and plant-pathogen interaction. However, no MaHsf has been identified in banana, as well as its possible role. In this study, genome-wide identification and further analyses of evolution, gene structure and conserved motifs showed closer relationship of them in every subgroup. The comprehensive expression profiles of MaHsfs revealed the tissue- and developmental stage-specific or dependent, as well as abiotic and biotic stress-responsive expressions of them. The common regulation of several MaHsfs by abiotic and biotic stress indicated the possible roles of them in plant stress responses. Taken together, this study extended our understanding of MaHsf gene family and identified some candidate MaHsfs with specific expression profiles, which may be used as potential candidates for genetic breeding in banana.
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Personat JM, Tejedor-Cano J, Prieto-Dapena P, Almoguera C, Jordano J. Co-overexpression of two Heat Shock Factors results in enhanced seed longevity and in synergistic effects on seedling tolerance to severe dehydration and oxidative stress. BMC PLANT BIOLOGY 2014; 14:56. [PMID: 24593798 PMCID: PMC4081658 DOI: 10.1186/1471-2229-14-56] [Citation(s) in RCA: 38] [Impact Index Per Article: 3.8] [Reference Citation Analysis] [Abstract] [Key Words] [MESH Headings] [Track Full Text] [Subscribe] [Scholar Register] [Received: 01/17/2014] [Accepted: 02/26/2014] [Indexed: 05/06/2023]
Abstract
BACKGROUND We have previously reported that the seed-specific overexpression of sunflower (Helianthus annuus L.) Heat Shock Factor A9 (HaHSFA9) enhanced seed longevity in transgenic tobacco (Nicotiana tabacum L.). In addition, the overexpression of HaHSFA9 in vegetative organs conferred tolerance to drastic levels of dehydration and oxidative stress. RESULTS Here we found that the combined overexpression of sunflower Heat Shock Factor A4a (HaHSFA4a) and HaHSFA9 enhanced all the previously reported phenotypes described for the overexpression of HaHSFA9 alone. The improved phenotypes occurred in coincidence with only subtle changes in the accumulation of small Heat Shock Proteins (sHSP) that are encoded by genes activated by HaHSFA9. The single overexpression of HaHSFA4a in vegetative organs (which lack endogenous HSFA9 proteins) did not induce sHSP accumulation under control growth conditions; neither it conferred thermotolerance. The overexpression of HaHSFA4a alone also failed to induce tolerance to severe abiotic stress. Thus, a synergistic functional effect of both factors was evident in seedlings. CONCLUSIONS Our study revealed that HaHSFA4a requires HaHSFA9 for in planta function. Our results strongly support the involvement of HaHSFA4a and HaHSFA9 in transcriptional co-activation of a genetic program of longevity and desiccation tolerance in sunflower seeds. These results would also have potential application for improving seed longevity and tolerance to severe stress in vegetative organs.
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Affiliation(s)
- José-María Personat
- Departamento de Biotecnología Vegetal, Instituto de Recursos Naturales y Agrobiología de Sevilla, Consejo Superior de Investigaciones Científicas (CSIC), 41012 Seville, Spain
| | - Javier Tejedor-Cano
- Departamento de Biotecnología Vegetal, Instituto de Recursos Naturales y Agrobiología de Sevilla, Consejo Superior de Investigaciones Científicas (CSIC), 41012 Seville, Spain
| | - Pilar Prieto-Dapena
- Departamento de Biotecnología Vegetal, Instituto de Recursos Naturales y Agrobiología de Sevilla, Consejo Superior de Investigaciones Científicas (CSIC), 41012 Seville, Spain
| | - Concepción Almoguera
- Departamento de Biotecnología Vegetal, Instituto de Recursos Naturales y Agrobiología de Sevilla, Consejo Superior de Investigaciones Científicas (CSIC), 41012 Seville, Spain
| | - Juan Jordano
- Departamento de Biotecnología Vegetal, Instituto de Recursos Naturales y Agrobiología de Sevilla, Consejo Superior de Investigaciones Científicas (CSIC), 41012 Seville, Spain
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He ZS, Xie R, Zou HS, Wang YZ, Zhu JB, Yu GQ. Structure and alternative splicing of a heat shock transcription factor gene, MsHSF1, in Medicago sativa. Biochem Biophys Res Commun 2007; 364:1056-61. [PMID: 17976370 DOI: 10.1016/j.bbrc.2007.10.131] [Citation(s) in RCA: 15] [Impact Index Per Article: 0.9] [Reference Citation Analysis] [Abstract] [Track Full Text] [Journal Information] [Subscribe] [Scholar Register] [Received: 10/17/2007] [Accepted: 10/24/2007] [Indexed: 10/22/2022]
Abstract
Plant heat shock transcription factors (HSF) are highly complex. In this study, we identified an alfalfa HSF gene MsHSF1 that is composed of four exons and three introns in the encoding region. The intron1-exon2-intron2-exon3-intron3 as an intervening sequence was inserted at the conserved position that separates the coding region for the DNA-binding domain by single intron in other known plant HSF genes. Alternative splicing of MsHSF1 has generated five transcript isoforms. Spliced transcript MsHSF1b consisted of exon1 and exon4, encodes a class A1 HSF protein that can specifically bind to the heat shock elements in vitro. Other four spliced transcripts (MsHSF1a-1 to 4) consist of exon1, part of the intervening sequence and exon4. These transcripts carry the premature termination codon and are low-abundant. Apparently these transcripts are the targets of nonsense-mediated mRNA decay (NMD). These results provide new insight into roles in the expression regulation of plant HSF genes.
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Affiliation(s)
- Zhi-shui He
- National Laboratory of Plant Molecular Genetics, Institute of Plant Physiology & Ecology, Shanghai Institutes for Biological Sciences, Chinese Academy of Sciences, 300 Fenglin Road, Shanghai 200032, PR China
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