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Zhu M, Tang X, Wang Z, Xu W, Zhou Y, Wang W, Li X, Li R, Guo K, Sun Y, Zhang W, Xu L, Li X. Arabidopsis GAAPs interacting with MAPR3 modulate the IRE1-dependent pathway upon endoplasmic reticulum stress. JOURNAL OF EXPERIMENTAL BOTANY 2019; 70:6113-6125. [PMID: 31618418 PMCID: PMC6859729 DOI: 10.1093/jxb/erz402] [Citation(s) in RCA: 4] [Impact Index Per Article: 0.8] [Reference Citation Analysis] [Abstract] [Key Words] [MESH Headings] [Track Full Text] [Subscribe] [Scholar Register] [Received: 12/07/2018] [Accepted: 08/28/2019] [Indexed: 05/08/2023]
Abstract
Cell viability requires the maintenance of intracellular homeostasis through the unfolded protein response mediated by receptors localized on the endoplasmic reticulum (ER) membrane. The receptor IRE1 mediates not only various adaptive outputs but also programmed cell death (PCD) under varying stress levels. However, little is known about the mechanism by which the same receptors trigger different responses in plants. Arabidopsis Golgi anti-apoptotic protein 1 (GAAP1) and GAAP3 resist PCD upon ER stress and negatively modulate the adaptive response of the IRE1-bZIP60 pathway through IRE1 association. To elucidate the mechanism underlying the anti-PCD activity of GAAPs, we attempted to isolate interactors of GAAPs by yeast two-hybrid screening. Membrane-associated progesterone receptor 3 (MAPR3) was isolated as one of the factors interacting with GAAP. Mutations in GAAP1/GAAP3 and/or MAPR3 enhanced the sensitivity of seedlings to ER stress. Whole-transcriptome analysis combined with quantitative reverse transcription-PCR and cellular analysis showed that regulated IRE1-dependent decay (RIDD) and autophagy were impaired in mutants mapr3, gaap1mapr3, and gaap3mapr3. MAPR3, GAAP1, and GAAP3 interacted with IRE1B as determined by protein interaction assays. These data suggest that the interaction of GAAP1/GAAP3 with MAPR3 mitigates ER stress to some extent through regulating IRE10-mediated RIDD and autophagy.
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Affiliation(s)
- Manli Zhu
- School of Life Sciences, East China Normal University, Shanghai, PR China
| | - Xiaohan Tang
- School of Life Sciences, East China Normal University, Shanghai, PR China
| | - Zhiying Wang
- School of Life Sciences, East China Normal University, Shanghai, PR China
| | - Wenqi Xu
- School of Life Sciences, East China Normal University, Shanghai, PR China
| | - Yan Zhou
- School of Life Sciences, East China Normal University, Shanghai, PR China
| | - Wei Wang
- School of Life Sciences, East China Normal University, Shanghai, PR China
| | - Xin Li
- School of Life Sciences, East China Normal University, Shanghai, PR China
| | - Rui Li
- School of Life Sciences, East China Normal University, Shanghai, PR China
| | - Kun Guo
- School of Life Sciences, East China Normal University, Shanghai, PR China
| | - Yue Sun
- School of Life Sciences, East China Normal University, Shanghai, PR China
| | - Wei Zhang
- School of Life Sciences, East China Normal University, Shanghai, PR China
| | - Ling Xu
- School of Life Sciences, East China Normal University, Shanghai, PR China
| | - Xiaofang Li
- School of Life Sciences, East China Normal University, Shanghai, PR China
- Correspondence:
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102
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Wang P, Zheng Y, Guo Y, Chen X, Sun Y, Yang J, Ye N. Identification, expression, and putative target gene analysis of nuclear factor-Y (NF-Y) transcription factors in tea plant (Camellia sinensis). PLANTA 2019; 250:1671-1686. [PMID: 31410553 DOI: 10.1007/s00425-019-03256-6] [Citation(s) in RCA: 18] [Impact Index Per Article: 3.6] [Reference Citation Analysis] [Abstract] [Key Words] [MESH Headings] [Track Full Text] [Subscribe] [Scholar Register] [Received: 05/31/2019] [Accepted: 08/06/2019] [Indexed: 05/03/2023]
Abstract
Genome-wide identification and characterization of nuclear factor-Y family in tea plants, and their expression profiles and putative targets provide the basis for further elucidation of their biological functions. The nuclear factor-Y (NF-Y) transcription factors (TFs) are crucial regulators of plant growth and physiology. However, the NF-Y TFs in tea plant (Camellia sinensis) have not yet been elucidated, and its biological functions, especially the putative target genes within the genome range, are still unclear. In this study, we identified 35 CsNF-Y encoding genes in the tea plant genome, including 10 CsNF-YAs, 15 CsNF-YBs and 10 CsNF-YCs. Their conserved domains and motifs, phylogeny, duplication event, gene structure, and promoter were subsequently analyzed. Tissue expression analysis revealed that CsNF-Ys exhibited three distinct expression patterns in eight tea tree tissues, among which CsNF-YAs were moderately expressed. Drought and abscisic acid (ABA) treatment indicated that CsNF-YAs may have a greater impact than other subunit members. Furthermore, through the genome-wide investigation of the presence of the CCAAT box, we found that CsNF-Ys may participate in the development of tea plants by regulating target genes of multiple physiological pathways, including photosynthesis, chlorophyll metabolism, fatty acid biosynthesis, and amino acid metabolism pathways. Our findings will contribute to the functional analysis of NF-Y genes in woody plants and the cultivation of high-quality tea plant cultivars.
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Affiliation(s)
- Pengjie Wang
- College of Horticulture, Key Laboratory of Tea Science, Fujian Agriculture and Forestry University, Fuzhou, 350002, Fujian, China
| | - Yucheng Zheng
- College of Horticulture, Key Laboratory of Tea Science, Fujian Agriculture and Forestry University, Fuzhou, 350002, Fujian, China
| | - Yongchun Guo
- College of Horticulture, Key Laboratory of Tea Science, Fujian Agriculture and Forestry University, Fuzhou, 350002, Fujian, China
| | - Xuejin Chen
- College of Horticulture, Key Laboratory of Tea Science, Fujian Agriculture and Forestry University, Fuzhou, 350002, Fujian, China
| | - Yun Sun
- College of Horticulture, Key Laboratory of Tea Science, Fujian Agriculture and Forestry University, Fuzhou, 350002, Fujian, China
| | - Jiangfan Yang
- College of Horticulture, Key Laboratory of Tea Science, Fujian Agriculture and Forestry University, Fuzhou, 350002, Fujian, China.
| | - Naixing Ye
- College of Horticulture, Key Laboratory of Tea Science, Fujian Agriculture and Forestry University, Fuzhou, 350002, Fujian, China.
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103
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Maheshwari P, Kummari D, Palakolanu SR, Nagasai Tejaswi U, Nagaraju M, Rajasheker G, Jawahar G, Jalaja N, Rathnagiri P, Kavi Kishor PB. Genome-wide identification and expression profile analysis of nuclear factor Y family genes in Sorghum bicolor L. (Moench). PLoS One 2019; 14:e0222203. [PMID: 31536532 PMCID: PMC6752760 DOI: 10.1371/journal.pone.0222203] [Citation(s) in RCA: 18] [Impact Index Per Article: 3.6] [Reference Citation Analysis] [Abstract] [MESH Headings] [Grants] [Track Full Text] [Download PDF] [Figures] [Journal Information] [Subscribe] [Scholar Register] [Received: 03/05/2019] [Accepted: 08/24/2019] [Indexed: 01/28/2023] Open
Abstract
Members of the plant Heme Activator Protein (HAP) or NUCLEAR FACTOR Y (NF-Y) are trimeric transcription factor complexes composed of the NF-YA, NF-YB and NF-YC subfamilies. They bind to the CCAAT box in the promoter regions of the target genes and regulate gene expressions. Plant NF-Ys were reported to be involved in adaptation to several abiotic stresses as well as in development. In silico analysis of Sorghum bicolor genome resulted in the identification of a total of 42 NF-Y genes, among which 8 code for the SbNF-YA, 19 for SbNF-YB and 15 for the SbNF-YC subunits. Analysis was also performed to characterize gene structures, chromosomal distribution, duplication status, protein subcellular localizations, conserved motifs, ancestral protein sequences, miRNAs and phylogenetic tree construction. Phylogenetic relationships and ortholog predictions displayed that sorghum has additional NF-YB genes with unknown functions in comparison with Arabidopsis. Analysis of promoters revealed that they harbour many stress-related cis-elements like ABRE and HSE, but surprisingly, DRE and MYB elements were not detected in any of the subfamilies. SbNF-YA1, 2, and 6 were found upregulated under 200 mM salt and 200 mM mannitol stresses. While NF-YA7 appeared associated with high temperature (40°C) stress, NF-YA8 was triggered by both cold (4°C) and high temperature stresses. Among NF-YB genes, 7, 12, 15, and 16 were induced under multiple stress conditions such as salt, mannitol, ABA, cold and high temperatures. Likewise, NF-YC 6, 11, 12, 14, and 15 were enhanced significantly in a tissue specific manner under multiple abiotic stress conditions. Majority of the mannitol (drought)-inducible genes were also induced by salt, high temperature stresses and ABA. Few of the high temperature stress-induced genes are also induced by cold stress (NF-YA2, 4, 6, 8, NF-YB2, 7, 10, 11, 12, 14, 16, 17, NF-YC4, 6, 12, and 13) thus suggesting a cross talk among them. This work paves the way for investigating the roles of diverse sorghum NF-Y proteins during abiotic stress responses and provides an insight into the evolution of diverse NF-Y members.
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Affiliation(s)
- P. Maheshwari
- Department of Genetics, Osmania University, Hyderabad, India
| | - Divya Kummari
- International Crops Research Institute for the Semi-Arid Tropics (ICRISAT), Patancheru, Hyderabad, India
| | - Sudhakar Reddy Palakolanu
- International Crops Research Institute for the Semi-Arid Tropics (ICRISAT), Patancheru, Hyderabad, India
| | - U. Nagasai Tejaswi
- Department of Biotechnology, Vignan’s Foundation for Science, Technology and Research, Vadlamudi, Guntur, Andhra Pradesh, India
| | - M. Nagaraju
- Department of Genetics, Osmania University, Hyderabad, India
- Department of Biochemistry, ICMR-National Institute of Nutrition, Hyderabad, India
| | - G. Rajasheker
- Department of Genetics, Osmania University, Hyderabad, India
| | - G. Jawahar
- Department of Genetics, Osmania University, Hyderabad, India
| | - N. Jalaja
- Department of Biotechnology, Vignan’s Foundation for Science, Technology and Research, Vadlamudi, Guntur, Andhra Pradesh, India
| | - P. Rathnagiri
- Genomix CARL Pvt. Ltd. Rayalapuram Road, Pulivendula, Kadapa, Andhra Pradesh, India
- Genomix Molecular Diagnostics Pvt Ltd., Kukatpally, Hyderabad, India
- Genomix Biotech Inc., Atlanta, GA, United States of America
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104
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Rodríguez-López J, López AH, Estrada-Navarrete G, Sánchez F, Díaz-Camino C. The Noncanonical Heat Shock Protein PvNod22 Is Essential for Infection Thread Progression During Rhizobial Endosymbiosis in Common Bean. MOLECULAR PLANT-MICROBE INTERACTIONS : MPMI 2019; 32:939-948. [PMID: 30893001 DOI: 10.1094/mpmi-02-19-0041-r] [Citation(s) in RCA: 4] [Impact Index Per Article: 0.8] [Reference Citation Analysis] [Abstract] [Key Words] [MESH Headings] [Track Full Text] [Subscribe] [Scholar Register] [Indexed: 06/09/2023]
Abstract
In the establishment of plant-rhizobial symbiosis, the plant hosts express nodulin proteins during root nodule organogenesis. A limited number of nodulins have been characterized, and these perform essential functions in root nodule development and metabolism. Most nodulins are expressed in the nodule and at lower levels in other plant tissues. Previously, we isolated Nodulin 22 (PvNod22) from a common bean (Phaseolus vulgaris L.) cDNA library derived from Rhizobium-infected roots. PvNod22 is a noncanonical, endoplasmic reticulum (ER)-localized, small heat shock protein that confers protection against oxidative stress when overexpressed in Escherichia coli. Virus-induced gene silencing of PvNod22 resulted in necrotic lesions in the aerial organs of P. vulgaris plants cultivated under optimal conditions, activation of the ER-unfolded protein response (UPR), and, finally, plant death. Here, we examined the expression of PvNod22 in common bean plants during the establishment of rhizobial endosymbiosis and its relationship with two cellular processes associated with plant immunity, the UPR and autophagy. In the RNA interference lines, numerous infection threads stopped their progression before reaching the cortex cell layer of the root, and nodules contained fewer nitrogen-fixing bacteroids. Collectively, our results suggest that PvNod22 has a nonredundant function during legume-rhizobia symbiosis associated with infection thread elongation, likely by sustaining protein homeostasis in the ER.
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Affiliation(s)
- Jonathan Rodríguez-López
- Departamento de Biología Molecular de Plantas, Instituto de Biotecnología, Universidad Nacional Autónoma de México, Avenida Universidad 2001, Colonia Chamilpa, Cuernavaca, Morelos 62210, Mexico
| | - Alejandrina Hernández López
- Departamento de Biología Molecular de Plantas, Instituto de Biotecnología, Universidad Nacional Autónoma de México, Avenida Universidad 2001, Colonia Chamilpa, Cuernavaca, Morelos 62210, Mexico
| | - Georgina Estrada-Navarrete
- Departamento de Biología Molecular de Plantas, Instituto de Biotecnología, Universidad Nacional Autónoma de México, Avenida Universidad 2001, Colonia Chamilpa, Cuernavaca, Morelos 62210, Mexico
| | - Federico Sánchez
- Departamento de Biología Molecular de Plantas, Instituto de Biotecnología, Universidad Nacional Autónoma de México, Avenida Universidad 2001, Colonia Chamilpa, Cuernavaca, Morelos 62210, Mexico
| | - Claudia Díaz-Camino
- Departamento de Biología Molecular de Plantas, Instituto de Biotecnología, Universidad Nacional Autónoma de México, Avenida Universidad 2001, Colonia Chamilpa, Cuernavaca, Morelos 62210, Mexico
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105
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Wu Z, Chen L, Yu Q, Zhou W, Gou X, Li J, Hou S. Multiple transcriptional factors control stomata development in rice. THE NEW PHYTOLOGIST 2019; 223:220-232. [PMID: 30825332 DOI: 10.1111/nph.15766] [Citation(s) in RCA: 74] [Impact Index Per Article: 14.8] [Reference Citation Analysis] [Abstract] [Key Words] [MESH Headings] [Track Full Text] [Subscribe] [Scholar Register] [Received: 08/28/2018] [Accepted: 02/23/2019] [Indexed: 05/07/2023]
Abstract
Grass stomata can balance gas exchange and evaporation effectively in rapidly changing environments via their unique anatomical features. Although the key components of stomatal development in Arabidopsis have been largely elucidated over the past decade, the molecular mechanisms that govern stomatal development in grasses are poorly understood. Via the genome editing system and T-DNA insertion lines, the key transcriptional factors (TFs) regulating stomatal development in rice (Oryza sativa) were knocked out. A combination of genetic and biochemical assays subsequently revealed the functions of these TFs. OsSPCH/OsICE is essential for the initiation of stomatal lineage. OsMUTE/OsICE determines meristemoid to guard mother cell (GMC) transition. OsFAMA/OsICE influences subsidiary mother cell asymmetric division and mature stoma differentiation. OsFLP regulates the orientation of GMC symmetrical division. More importantly, we found that OsSCR/OsSHR controls the initiation of stomatal lineage cells and the formation of subsidiary cells. The transcription of OsSCR is activated by OsSPCH and OsMUTE. This study characterised the functions of master regulatory TFs that control each stomatal developmental stage in rice. Our findings are helpful for elucidating how various species reprogramme the molecular mechanisms to generate different stomatal types during evolution.
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Affiliation(s)
- Zhongliang Wu
- MOE Key Laboratory of Cell Activities and Stress Adaptations, School of Life Sciences, Lanzhou University, Lanzhou, 730000, China
| | - Liang Chen
- MOE Key Laboratory of Cell Activities and Stress Adaptations, School of Life Sciences, Lanzhou University, Lanzhou, 730000, China
| | - Qi Yu
- MOE Key Laboratory of Cell Activities and Stress Adaptations, School of Life Sciences, Lanzhou University, Lanzhou, 730000, China
| | - Wenqi Zhou
- MOE Key Laboratory of Cell Activities and Stress Adaptations, School of Life Sciences, Lanzhou University, Lanzhou, 730000, China
| | - Xiaoping Gou
- MOE Key Laboratory of Cell Activities and Stress Adaptations, School of Life Sciences, Lanzhou University, Lanzhou, 730000, China
| | - Jia Li
- MOE Key Laboratory of Cell Activities and Stress Adaptations, School of Life Sciences, Lanzhou University, Lanzhou, 730000, China
| | - Suiwen Hou
- MOE Key Laboratory of Cell Activities and Stress Adaptations, School of Life Sciences, Lanzhou University, Lanzhou, 730000, China
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106
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Bello BK, Hou Y, Zhao J, Jiao G, Wu Y, Li Z, Wang Y, Tong X, Wang W, Yuan W, Wei X, Zhang J. NF-YB1-YC12-bHLH144 complex directly activates Wx to regulate grain quality in rice (Oryza sativa L.). PLANT BIOTECHNOLOGY JOURNAL 2019; 17:1222-1235. [PMID: 30552799 PMCID: PMC6576074 DOI: 10.1111/pbi.13048] [Citation(s) in RCA: 80] [Impact Index Per Article: 16.0] [Reference Citation Analysis] [Abstract] [Key Words] [MESH Headings] [Track Full Text] [Subscribe] [Scholar Register] [Received: 06/25/2018] [Revised: 11/20/2018] [Accepted: 11/21/2018] [Indexed: 05/14/2023]
Abstract
Identification of seed development regulatory genes is the key for the genetic improvement in rice grain quality. NF-Ys are the important transcription factors, but their roles in rice grain quality control and the underlying molecular mechanism remain largely unknown. Here, we report the functional characterization a rice NF-Y heterotrimer complex NF-YB1-YC12-bHLH144, which is formed by the binding of NF-YB1 to NF-YC12 and then bHLH144 in a sequential order. Knock-out of each of the complex genes resulted in alteration of grain qualities in all the mutants as well as reduced grain size in crnf-yb1 and crnf-yc12. RNA-seq analysis identified 1496 genes that were commonly regulated by NF-YB1 and NF-YC12, including the key granule-bound starch synthase gene Wx. NF-YC12 and bHLH144 maintain NF-YB1 stability from the degradation mediated by ubiquitin/26S proteasome, while NF-YB1 directly binds to the 'G-box' domain of Wx promoter and activates Wx transcription, hence to regulate rice grain quality. Finally, we revealed a novel grain quality regulatory pathway controlled by NF-YB1-YC12-bHLH144 complex, which has great potential for rice genetic improvement.
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Affiliation(s)
| | - Yuxuan Hou
- State Key Lab of Rice BiologyChina National Rice Research InstituteHangzhouChina
| | - Juan Zhao
- State Key Lab of Rice BiologyChina National Rice Research InstituteHangzhouChina
| | - Guiai Jiao
- State Key Lab of Rice BiologyChina National Rice Research InstituteHangzhouChina
| | - Yawen Wu
- State Key Lab of Rice BiologyChina National Rice Research InstituteHangzhouChina
| | - Zhiyong Li
- State Key Lab of Rice BiologyChina National Rice Research InstituteHangzhouChina
| | - Yifeng Wang
- State Key Lab of Rice BiologyChina National Rice Research InstituteHangzhouChina
| | - Xiaohong Tong
- State Key Lab of Rice BiologyChina National Rice Research InstituteHangzhouChina
| | - Wei Wang
- State Key Lab of Rice BiologyChina National Rice Research InstituteHangzhouChina
| | - Wenya Yuan
- State Key Lab of Biocatalysis and Enzyme EngineeringHubei Collaborative Innovation Center for Green Transformation of Bio‐ResourcesHubei Key Laboratory of Industrial BiotechnologyCollege of Life SciencesHubei UniversityWuhanChina
| | - Xiangjin Wei
- State Key Lab of Rice BiologyChina National Rice Research InstituteHangzhouChina
| | - Jian Zhang
- State Key Lab of Rice BiologyChina National Rice Research InstituteHangzhouChina
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107
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Wang R, Zhu L, Zhang Y, Fan J, Li L. Genome-wide analysis of poplar NF-YB gene family and identified PtNF-YB1 important in regulate flowering timing in transgenic plants. BMC PLANT BIOLOGY 2019; 19:251. [PMID: 31185907 PMCID: PMC6560884 DOI: 10.1186/s12870-019-1863-2] [Citation(s) in RCA: 2] [Impact Index Per Article: 0.4] [Reference Citation Analysis] [Abstract] [Key Words] [MESH Headings] [Grants] [Track Full Text] [Subscribe] [Scholar Register] [Received: 05/15/2018] [Accepted: 06/03/2019] [Indexed: 05/13/2023]
Abstract
BACKGROUND Compared with annual herbaceous plants, woody perennials require a longer period of juvenile phase to flowering, and many traits can be only expressed in adulthood, which seriously makes the breeding efficiency of new varieties slower. For the study of poplar early flowering, the main focus is on the study Arabidopsis homologue gene CO/FT. Based on studies of Arabidopsis, rice and other plant species, some important research progress has been made on the regulation of flowering time by NF-Y subunits. However, little is known about the function of NF-Y regulating flowering in poplar. RESULTS In the present study, we have identified PtNF-YB family members in poplar and focus on the function of the PtNF-YB1 regulate flowering timing using transgenic Arabidopsis and tomato. To understand this mechanisms, the expression levels of three known flowering genes (CO, FT and SOC1) were examined with RT-PCR in transgenic Arabidopsis. We used the Y2H and BiFC to assay the interactions between PtNF-YB1 and PtCO (PtCO1 and PtCO2) proteins. Finally, the potential molecular mechanism model in which PtNF-YB1 play a role in regulating flowering in poplar was discussed. CONCLUSIONS In this study, we have characterized the poplar NF-YB gene family and confirmed the function of the PtNF-YB1 regulate flowering timing. At the same time, we found that the function of PtNF-YB1 to improve early flowering can overcome species barriers. Therefore, PtNF-YB1 can be used as a potential candidate gene to improve early flowering by genetic transformation in poplar and other crops.
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Affiliation(s)
- Rongkai Wang
- College of Forestry, Northwest A&F University, Yangling, 712100, China
| | - Ling Zhu
- College of Forestry, Northwest A&F University, Yangling, 712100, China
| | - Yi Zhang
- College of Forestry, Northwest A&F University, Yangling, 712100, China
| | - Junfeng Fan
- College of Forestry, Northwest A&F University, Yangling, 712100, China
| | - Lingli Li
- College of Forestry, Northwest A&F University, Yangling, 712100, China.
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108
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Yu X, Wang T, Zhu M, Zhang L, Zhang F, Jing E, Ren Y, Wang Z, Xin Z, Lin T. Transcriptome and physiological analyses for revealing genes involved in wheat response to endoplasmic reticulum stress. BMC PLANT BIOLOGY 2019; 19:193. [PMID: 31072347 PMCID: PMC6509841 DOI: 10.1186/s12870-019-1798-7] [Citation(s) in RCA: 21] [Impact Index Per Article: 4.2] [Reference Citation Analysis] [Abstract] [Key Words] [MESH Headings] [Grants] [Track Full Text] [Subscribe] [Scholar Register] [Received: 12/07/2017] [Accepted: 04/25/2019] [Indexed: 05/07/2023]
Abstract
BACKGROUND Wheat production is largely restricted by adverse environmental stresses. Under many undesirable conditions, endoplasmic reticulum (ER) stress can be induced. However, the physiological and molecular responses of wheat to ER stress remain poorly understood. We used dithiothreitol (DTT) and tauroursodeoxycholic acid (TUDCA) to induce or suppress ER stress in wheat cells, respectively, with the aim to reveal the molecular background of ER stress responses using a combined approach of transcriptional profiling and morpho-physiological characterization. METHODS To understand the mechanism of wheat response to ER stress, three wheat cultivars were used in our pre-experiments. Among them, the cultivar with a moderate stress tolerance, Yunong211 was used in the following experiments. We used DTT (7.5 mM) to induce ER stress and TUDCA (25 μg·mL- 1) to suppress the stress. Under three treatment groups (Control, DTT and DTT + TUDCA), we firstly monitored the morphological, physiological and cytological changes of wheat seedlings. Then we collected leaf samples from each group for RNA extraction, library construction and RNA sequencing on an Illumina Hiseq platform. The sequencing data was then validated by qRT-PCR. RESULTS Morpho-physiological results showed DTT significantly reduced plant height and biomass, decreased contents of chlorophyll and water, increased electrolyte leakage rate and antioxidant enzymes activity, and accelerated the cell death ratio, whereas these changes were all remarkably alleviated after TUDCA co-treatment. Therefore, RNA sequencing was performed to determine the genes involved in regulating wheat response to stress. Transcriptomic analysis revealed that 8204 genes were differentially expressed in three treatment groups. Among these genes, 158 photosynthesis-related genes, 42 antioxidant enzyme genes, 318 plant hormone-related genes and 457 transcription factors (TFs) may play vital roles in regulating wheat response to ER stress. Based on the comprehensive analysis, we propose a hypothetical model to elucidate possible mechanisms of how plants adapt to environmental stresses. CONCLUSIONS We identified several important genes that may play vital roles in wheat responding to ER stress. This work should lay the foundations of future studies in plant response to environmental stresses.
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Affiliation(s)
- Xing Yu
- College of Agronomy, Henan Agricultural University, Zhengzhou, China
- Collaborative Innovation Center of Henan Grain Crops, Zhengzhou, China
- National Key Laboratory of Wheat and Maize Crop Science, Zhengzhou, China
| | - Tanchun Wang
- Department of Basic Biomedical Sciences, Touro College of Osteopathic Medicine – Middletown, NY, USA
| | - Meichen Zhu
- College of Agronomy, Henan Agricultural University, Zhengzhou, China
- Collaborative Innovation Center of Henan Grain Crops, Zhengzhou, China
- National Key Laboratory of Wheat and Maize Crop Science, Zhengzhou, China
| | - Liting Zhang
- College of Agronomy, Henan Agricultural University, Zhengzhou, China
- Collaborative Innovation Center of Henan Grain Crops, Zhengzhou, China
- National Key Laboratory of Wheat and Maize Crop Science, Zhengzhou, China
| | - Fengzhi Zhang
- College of Agronomy, Henan Agricultural University, Zhengzhou, China
- Collaborative Innovation Center of Henan Grain Crops, Zhengzhou, China
- National Key Laboratory of Wheat and Maize Crop Science, Zhengzhou, China
| | - Enen Jing
- College of Agronomy, Henan Agricultural University, Zhengzhou, China
- Collaborative Innovation Center of Henan Grain Crops, Zhengzhou, China
- National Key Laboratory of Wheat and Maize Crop Science, Zhengzhou, China
| | - Yongzhe Ren
- College of Agronomy, Henan Agricultural University, Zhengzhou, China
- Collaborative Innovation Center of Henan Grain Crops, Zhengzhou, China
- National Key Laboratory of Wheat and Maize Crop Science, Zhengzhou, China
| | - Zhiqiang Wang
- College of Agronomy, Henan Agricultural University, Zhengzhou, China
- Collaborative Innovation Center of Henan Grain Crops, Zhengzhou, China
- National Key Laboratory of Wheat and Maize Crop Science, Zhengzhou, China
| | - Zeyu Xin
- College of Agronomy, Henan Agricultural University, Zhengzhou, China
- Collaborative Innovation Center of Henan Grain Crops, Zhengzhou, China
- National Key Laboratory of Wheat and Maize Crop Science, Zhengzhou, China
| | - Tongbao Lin
- College of Agronomy, Henan Agricultural University, Zhengzhou, China
- Collaborative Innovation Center of Henan Grain Crops, Zhengzhou, China
- National Key Laboratory of Wheat and Maize Crop Science, Zhengzhou, China
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109
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Yin C, Ramachandran SR, Zhai Y, Bu C, Pappu HR, Hulbert SH. A novel fungal effector from Puccinia graminis suppressing RNA silencing and plant defense responses. THE NEW PHYTOLOGIST 2019; 222:1561-1572. [PMID: 30623449 DOI: 10.1111/nph.15676] [Citation(s) in RCA: 23] [Impact Index Per Article: 4.6] [Reference Citation Analysis] [Abstract] [Key Words] [MESH Headings] [Grants] [Track Full Text] [Subscribe] [Scholar Register] [Received: 08/06/2018] [Accepted: 01/03/2019] [Indexed: 05/11/2023]
Abstract
Fungal plant pathogens, like rust-causing biotrophic fungi, secrete hundreds of effectors into plant cells to subvert host immunity and promote pathogenicity on their host plants by manipulating specific physiological processes or signal pathways, but the actual function has been demonstrated for very few of these proteins. Here, we show that the PgtSR1 effector proteins, encoded by two allelic genes (PgtSR1-a and PgtSR1-b), from the wheat stem rust pathogen Puccinia graminis f. sp. tritici (Pgt), suppress RNA silencing in plants and impede plant defenses by altering the abundance of small RNAs that serve as defense regulators. Expression of the PgtSR1s in plants revealed that the PgtSR1s promote susceptibility to multiple pathogens and partially suppress cell death triggered by multiple R proteins. Overall, our study provides the first evidence that the filamentous fungus P. graminis has evolved to produce fungal suppressors of RNA silencing and indicates that PgtSR1s suppress both basal defenses and effector triggered immunity.
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Affiliation(s)
- Chuntao Yin
- Department of Plant Pathology, Washington State University, Pullman, WA, 99164-6430, USA
| | - Sowmya R Ramachandran
- Department of Plant Pathology, Washington State University, Pullman, WA, 99164-6430, USA
| | - Ying Zhai
- Department of Plant Pathology, Washington State University, Pullman, WA, 99164-6430, USA
| | - Chunya Bu
- College of Biological Science and Engineering, Beijing University of Agriculture, Beijing, 102206, China
| | - Hanu R Pappu
- Department of Plant Pathology, Washington State University, Pullman, WA, 99164-6430, USA
| | - Scot H Hulbert
- Department of Plant Pathology, Washington State University, Pullman, WA, 99164-6430, USA
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SES1 positively regulates heat stress resistance in Arabidopsis. Biochem Biophys Res Commun 2019; 513:582-588. [PMID: 30981503 DOI: 10.1016/j.bbrc.2019.04.015] [Citation(s) in RCA: 7] [Impact Index Per Article: 1.4] [Reference Citation Analysis] [Abstract] [Key Words] [Track Full Text] [Journal Information] [Subscribe] [Scholar Register] [Received: 04/01/2019] [Accepted: 04/03/2019] [Indexed: 01/23/2023]
Abstract
Heat stress significantly disturbs the protein folding and processing capability in plants. Molecular chaperones are vital players in unfolded/misfolded protein assembly and abiotic stress tolerance. Here, we reported SES1, which encodes an endoplasmic reticulum (ER) localized molecular chaperone, is required for Arabidopsis heat tolerance. SES1 is obviously induced by heat treatment and ses1 mutants are hypersensitive to heat stress. The unfolded protein response genes were up-regulated, while cytosolic protein response genes were down-regulated in ses1 after heat stress. Furthermore, ER stress sensor basic leucine zipper 28 (bZIP28) acts as the upstream transcriptional activator of SES1 by binding to its promoter region. These results provide new insights into heat stress responses and ER stress, and shed lights on the mechanism of SES1 in modulating heat resistance.
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111
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Bao Y, Bassham DC, Howell SH. A Functional Unfolded Protein Response Is Required for Normal Vegetative Development. PLANT PHYSIOLOGY 2019; 179:1834-1843. [PMID: 30710050 PMCID: PMC6446744 DOI: 10.1104/pp.18.01261] [Citation(s) in RCA: 17] [Impact Index Per Article: 3.4] [Reference Citation Analysis] [Abstract] [MESH Headings] [Track Full Text] [Subscribe] [Scholar Register] [Received: 10/16/2018] [Accepted: 01/19/2019] [Indexed: 05/20/2023]
Abstract
The unfolded protein response (UPR) is activated in plants in response to endoplasmic reticulum stress and plays an important role in mitigating stress damage. Multiple factors act in the UPR, including the membrane-associated transcription factor, BASIC LEUCINE ZIPPER 17 (bZIP17), and the membrane-associated RNA splicing factor, INOSITOL REQUIRING ENZYME1 (IRE1). We have analyzed an Arabidopsis (Arabidopsis thaliana) ire1a ire1b bzip17 triple mutant, with defects in stress signaling, and found that the mutant is also impaired in vegetative plant growth under conditions without externally applied stress. This raised the possibility that the UPR functions in plant development in the same manner as it does in responding to stress. bZIP17 is mobilized to the nucleus in response to stress, and through the analysis of a mobilization-defective bZIP17 mutant, we found that to support normal plant development bZIP17 must be capable of mobilization. Likewise, through the analysis of ire1 mutants defective in either protein kinase or RNase activities, we found that both must be operative to promote normal development. These findings demonstrate that the UPR, which is associated with stress responses in plants, also functions under unstressed conditions to support normal development.
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Affiliation(s)
- Yan Bao
- Department of Genetics, Development, and Cell Biology, Iowa State University, Ames, Iowa 50011
| | - Diane C Bassham
- Department of Genetics, Development, and Cell Biology, Iowa State University, Ames, Iowa 50011
| | - Stephen H Howell
- Department of Genetics, Development, and Cell Biology, Iowa State University, Ames, Iowa 50011
- Plant Sciences Institute, Iowa State University, Ames, Iowa 50011
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Rípodas C, Castaingts M, Clúa J, Villafañe J, Blanco FA, Zanetti ME. The PvNF-YA1 and PvNF-YB7 Subunits of the Heterotrimeric NF-Y Transcription Factor Influence Strain Preference in the Phaseolus vulgaris-Rhizobium etli Symbiosis. FRONTIERS IN PLANT SCIENCE 2019; 10:221. [PMID: 30873199 PMCID: PMC6403126 DOI: 10.3389/fpls.2019.00221] [Citation(s) in RCA: 9] [Impact Index Per Article: 1.8] [Reference Citation Analysis] [Abstract] [Key Words] [Track Full Text] [Subscribe] [Scholar Register] [Received: 09/04/2018] [Accepted: 02/08/2019] [Indexed: 05/23/2023]
Abstract
Transcription factors of the Nuclear Factor Y (NF-Y) family play essential functions in plant development and plasticity, including the formation of lateral root organs such as lateral root and symbiotic nodules. NF-Ys mediate transcriptional responses by acting as heterotrimers composed of three subunits, NF-YA, NF-YB, and NF-YC, which in plants are encoded by relatively large gene families. We have previously shown that, in the Phaseolus vulgaris × Rhizobium etli interaction, the PvNF-YC1 subunit is involved not only in the formation of symbiotic nodules, but also in the preference exhibited by the plant for rhizobial strains that are more efficient and competitive in nodule formation. PvNF-YC1 forms a heterotrimer with the PvNF-YA1 and PvNF-YB7 subunits. Here, we used promoter:reporter fusions to show that both PvNF-YA1 and PvNF-YB7 are expressed in symbiotic nodules. In addition, we report that knock-down of PvNF-YA1 and its close paralog PvNF-YA9 abolished nodule formation by either high or low efficient strains and arrested rhizobial infection. On the other hand, knock-down of PvNF-YB7 only affected the symbiotic outcome of the high efficient interaction, suggesting that other symbiotic NF-YB subunits might be involved in the more general mechanisms of nodule formation. More important, we present functional evidence supporting that both PvNF-YA1 and PvNF-YB7 are part of the mechanisms that allow P. vulgaris plants to discriminate and select those bacterial strains that perform better in nodule formation, most likely by acting in the same heterotrimeric complex that PvNF-YC1.
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Park CJ, Park JM. Endoplasmic Reticulum Plays a Critical Role in Integrating Signals Generated by Both Biotic and Abiotic Stress in Plants. FRONTIERS IN PLANT SCIENCE 2019; 10:399. [PMID: 31019523 PMCID: PMC6458287 DOI: 10.3389/fpls.2019.00399] [Citation(s) in RCA: 23] [Impact Index Per Article: 4.6] [Reference Citation Analysis] [Abstract] [Key Words] [Track Full Text] [Subscribe] [Scholar Register] [Received: 12/21/2018] [Accepted: 03/15/2019] [Indexed: 05/19/2023]
Abstract
Most studies of environmental adaptations in plants have focused on either biotic or abiotic stress factors in an attempt to understand the defense mechanisms of plants against individual stresses. However, in the natural ecosystem, plants are simultaneously exposed to multiple stresses. Stress-tolerant crops developed in translational studies based on a single stress often fail to exhibit the expected traits in the field. To adapt to abiotic stress, recent studies have identified the need for interactions of plants with various microorganisms. These findings highlight the need to understand the multifaceted interactions of plants with biotic and abiotic stress factors. The endoplasmic reticulum (ER) is an organelle that links various stress responses. To gain insight into the molecular integration of biotic and abiotic stress responses in the ER, we focused on the interactions of plants with RNA viruses. This interaction points toward the relevance of ER in viral pathogenicity as well as plant responses. In this mini review, we explore the molecular crosstalk between biotic and abiotic stress signaling through the ER by elaborating ER-mediated signaling in response to RNA viruses and abiotic stresses. Additionally, we summarize the results of a recent study on phytohormones that induce ER-mediated stress response. These studies will facilitate the development of multi-stress-tolerant transgenic crops in the future.
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Affiliation(s)
- Chang-Jin Park
- Department of Bioresources Engineering, Sejong University, Seoul, South Korea
- Plant Engineering Research Institute, Sejong University, Seoul, South Korea
- *Correspondence: Chang-Jin Park,
| | - Jeong Mee Park
- Plant Systems Engineering Research Center, Korea Research Institute of Bioscience and Biotechnology (KRIBB), Daejeon, South Korea
- Department of Biosystems and Bioengineering, University of Science and Technology (UST), Daejeon, South Korea
- Jeong Mee Park,
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114
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Liu L, Li J. Communications Between the Endoplasmic Reticulum and Other Organelles During Abiotic Stress Response in Plants. FRONTIERS IN PLANT SCIENCE 2019; 10:749. [PMID: 31249578 PMCID: PMC6582665 DOI: 10.3389/fpls.2019.00749] [Citation(s) in RCA: 44] [Impact Index Per Article: 8.8] [Reference Citation Analysis] [Abstract] [Key Words] [Track Full Text] [Subscribe] [Scholar Register] [Received: 12/24/2018] [Accepted: 05/21/2019] [Indexed: 05/08/2023]
Abstract
To adapt to constantly changing environmental conditions, plants have evolved sophisticated tolerance mechanisms to integrate various stress signals and to coordinate plant growth and development. It is well known that inter-organellar communications play important roles in maintaining cellular homeostasis in response to environmental stresses. The endoplasmic reticulum (ER), extending throughout the cytoplasm of eukaryotic cells, is a central organelle involved in lipid metabolism, Ca2+ homeostasis, and synthesis and folding of secretory and transmembrane proteins crucial to perceive and transduce environmental signals. The ER communicates with the nucleus via the highly conserved unfolded protein response pathway to mitigate ER stress. Importantly, recent studies have revealed that the dynamic ER network physically interacts with other intracellular organelles and endomembrane compartments, such as the Golgi complex, mitochondria, chloroplast, peroxisome, vacuole, and the plasma membrane, through multiple membrane contact sites between closely apposed organelles. In this review, we will discuss the signaling and metabolite exchanges between the ER and other organelles during abiotic stress responses in plants as well as the ER-organelle membrane contact sites and their associated tethering complexes.
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Affiliation(s)
- Linchuan Liu
- State Key Laboratory for Conservation and Utilization of Subtropical Agro-Bioresources, South China Agricultural University, Guangzhou, China
- Guangdong Key Laboratory for Innovative Development and Utilization of Forest Plant Germplasm, College of Forestry and Landscape Architecture, South China Agricultural University, Guangzhou, China
| | - Jianming Li
- State Key Laboratory for Conservation and Utilization of Subtropical Agro-Bioresources, South China Agricultural University, Guangzhou, China
- Guangdong Key Laboratory for Innovative Development and Utilization of Forest Plant Germplasm, College of Forestry and Landscape Architecture, South China Agricultural University, Guangzhou, China
- Department of Molecular, Cellular, and Developmental Biology, University of Michigan, Ann Arbor, MI, United States
- *Correspondence: Jianming Li, ;
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Zhang L, Pan J, Wang G, Du H, He H, Pan J, Cai R. Cucumber CsTRY Negatively Regulates Anthocyanin Biosynthesis and Trichome Formation When Expressed in Tobacco. FRONTIERS IN PLANT SCIENCE 2019; 10:1232. [PMID: 31649700 PMCID: PMC6794952 DOI: 10.3389/fpls.2019.01232] [Citation(s) in RCA: 0] [Impact Index Per Article: 0] [Reference Citation Analysis] [Abstract] [Key Words] [Track Full Text] [Subscribe] [Scholar Register] [Received: 06/14/2019] [Accepted: 09/05/2019] [Indexed: 05/06/2023]
Abstract
The development of trichomes (spines) on cucumber fruits is an important agronomic trait. It has been reported that two MYB family members, CsMYB6 (Csa3G824850) and CsTRY (Csa5G139610) act as negative regulators of trichome or fruit spine initiation. To further study the functions of these two genes, we overexpressed them in tobacco, and found that the flowers and seed coats of transformants overexpressing CsTRY displayed an unexpected defect in pigmentation that was not observed in plants overexpressing CsMYB6. Moreover, the expression of key genes in the flavonoid synthesis pathway was repressed in CsTRY overexpressing plants, which resulted in the decrease of several important flavonoid secondary metabolites. In addition, CsTRY could interact with the AN1 homologous gene CsAN1 (Csa7G044190) in cucumber, which further confirmed that CsTRY not only regulates the development of fruit spines, but also functions in the synthesis of flavonoids, acting as the repressor of anthocyanin synthesis.
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Affiliation(s)
- Leyu Zhang
- School of Agriculture and Biology, Shanghai Jiao Tong University, Shanghai, China
| | - Jian Pan
- School of Agriculture and Biology, Shanghai Jiao Tong University, Shanghai, China
| | - Gang Wang
- School of Agriculture and Biology, Shanghai Jiao Tong University, Shanghai, China
| | - Hui Du
- School of Agriculture and Biology, Shanghai Jiao Tong University, Shanghai, China
| | - Huanle He
- School of Agriculture and Biology, Shanghai Jiao Tong University, Shanghai, China
| | - Junsong Pan
- School of Agriculture and Biology, Shanghai Jiao Tong University, Shanghai, China
- *Correspondence: Junsong Pan, ; Run Cai,
| | - Run Cai
- School of Agriculture and Biology, Shanghai Jiao Tong University, Shanghai, China
- State Key Laboratory of Vegetable Germplasm Innovation, Tianjin, China
- *Correspondence: Junsong Pan, ; Run Cai,
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116
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Wang W, Li X, Zhu M, Tang X, Wang Z, Guo K, Zhou Y, Sun Y, Zhang W, Li X. Arabidopsis GAAP1 to GAAP3 Play Redundant Role in Cell Death Inhibition by Suppressing the Upregulation of Salicylic Acid Pathway Under Endoplasmic Reticulum Stress. FRONTIERS IN PLANT SCIENCE 2019; 10:1032. [PMID: 31507623 PMCID: PMC6719610 DOI: 10.3389/fpls.2019.01032] [Citation(s) in RCA: 4] [Impact Index Per Article: 0.8] [Reference Citation Analysis] [Abstract] [Key Words] [Track Full Text] [Subscribe] [Scholar Register] [Received: 05/22/2019] [Accepted: 07/24/2019] [Indexed: 05/03/2023]
Abstract
The unfolded protein response (UPR) is activated to sustain cell survival by reducing misfolded protein accumulation in the endoplasmic reticulum (ER). The UPR also promotes cell death when the ER stress is severe. However, the underlying molecular mechanisms of UPR activity regulation and cell death transition are less understood in plants. Arabidopsis GAAP1 and GAAP3 are involved in the regulation of UPR and cell death. Five GAAP gene members are found in Arabidopsis. Here, we analyzed the function of GAAP2 in addition to GAAP1 and GAAP3 in ER stress response using single, double, and triple mutants. Results showed that single or double or triple mutants reduced plant survival and enhanced cell death under ER stress. And the sensitivity increased with the number of mutation genes increase. Quantitative real-time polymerase chain reaction analysis showed that mutation in triple genes promoted UPR signaling when confronted with mild ER stress, advanced SA target genes upregulation when confronted with severe stress. Moreover, Quantitative detection by UPLC-ESI-MS/MS showed that ER stress upregulated salicylic acid (SA) content in plants. These data suggest that GAAP1 to GAAP3 played redundant roles in cell death resistance and fine tuning UPR activation. And the anti-cell death function of GAAPs might be achieved by impairing the up-regulation of the SA pathway under ER stress.
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117
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Yevtushenko DP, Misra S. Spatiotemporal activities of Douglas-fir BiP Pro1 promoter in transgenic potato. PLANTA 2018; 248:1569-1579. [PMID: 30276470 DOI: 10.1007/s00425-018-3013-8] [Citation(s) in RCA: 1] [Impact Index Per Article: 0.2] [Reference Citation Analysis] [Abstract] [Key Words] [MESH Headings] [Track Full Text] [Subscribe] [Scholar Register] [Received: 04/19/2018] [Accepted: 09/20/2018] [Indexed: 06/08/2023]
Abstract
The PmBiPPro1 promoter of the luminal binding protein (BiP) from Douglas-fir is fully functional in transgenic potato, responsive to wounding, and has high transcriptional activity in tubers. A predefined pattern and level of transgene expression targeted to specific tissues or organs and at a particular developmental stage is a pre-requisite for the successful development of plants with desired traits. Here, we evaluated the transcriptional activity of the PmBiPPro1 promoter of the luminal binding protein (BiP) from Douglas-fir, by expressing reporter β-D-glucuronidase (GUS) gene constructs containing three different PmBiPPro1 promoter versions (2258 bp, 1259 bp, and 278 bp) in transgenic potato. In conifers, this promoter regulates the endoplasmic reticulum (ER) molecular chaperon of the HSP70 stress-related protein family and is essential for proper functioning of the ER. Stable expression analysis demonstrated that two of three PmBiPPro1 promoter versions (PmBiPPro1-1 and PmBiPPro1-3) were fully functional in the heterologous host, exhibited high transcriptional activities in the leaves of unstressed potatoes, and were responsive to wounding. Deletion analysis showed that the positive cis-active regulatory elements necessary for higher level expression resided within the - 1243 to - 261 region, whereas negative cis-active elements encompassed nucleotides - 2242 to - 1243. Histochemical staining revealed high level of GUS activities in tissues associated with a high rate of cell division and secretory activities. Most importantly, the PmBiPPro1 promoters, especially the full-length version, had activity in microtubers at a level that was much higher than in any other potato organ or tissue. The - 2242 to - 1243 bp region likely contains important cis element(s) that interact with tuber-specific transcription factors required for promoter activation in the storage organs. The organ-specific activity of the PmBiPPro1 promoters may be useful for targeted expression of heterologous molecules in potato tubers.
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Affiliation(s)
- Dmytro P Yevtushenko
- Department of Biological Sciences, University of Lethbridge, Lethbridge, AB, T1K 3M4, Canada.
| | - Santosh Misra
- Department of Biochemistry and Microbiology, Centre for Forest Biology, University of Victoria, Victoria, BC, V8W 3P6, Canada
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Baig MA, Ahmad J, Bagheri R, Ali AA, Al-Huqail AA, Ibrahim MM, Qureshi MI. Proteomic and ecophysiological responses of soybean (Glycine max L.) root nodules to Pb and hg stress. BMC PLANT BIOLOGY 2018; 18:283. [PMID: 30428829 PMCID: PMC6237034 DOI: 10.1186/s12870-018-1499-7] [Citation(s) in RCA: 11] [Impact Index Per Article: 1.8] [Reference Citation Analysis] [Abstract] [Key Words] [MESH Headings] [Grants] [Track Full Text] [Subscribe] [Scholar Register] [Received: 02/16/2018] [Accepted: 10/25/2018] [Indexed: 05/19/2023]
Abstract
BACKGROUND Lead (Pb) and mercury (Hg) are persistent hazardous metals in industrially polluted soils which can be toxic in low quantities. Metal toxicity can cause changes at cellular and molecular level which should be studied for better understanding of tolerance mechanism in plants. Soybean (Glycine max L.) is an important oilseed crop of the world including India. Indian soils growing soybean are often contaminated by Pb and Hg. The aim of this study was to explore how soybean root nodule responds to Pb and Hg through proteomic and ecophysiological alterations in order to enhance tolerance to metal stress. RESULTS Soybean plants were exposed to Pb (30 ppm PbCl2) and Hg (0.5 ppm HgCl2) to study histological, histochemical, biochemical and molecular response of N2-fixing symbiotic nodules. Both Pb and Hg treatment increased the level of oxidative stress in leaves and nodules. Chlorosis in leaves and morphological/anatomical changes in nodules were observed. Activities of ascorbate peroxidase, glutathione reductase and catalase were also modulated. Significant changes were observed in abundance of 76 proteins by Pb and Hg. Pb and Hg influenced abundance of 33 proteins (17 up and 16 down) and 43 proteins (33 up and 10 down), respectively. MS/MS ion search identified 55 proteins which were functionally associated with numerous cellular functions. Six crucial proteins namely catalase (CAT), allene oxide synthase (AOS), glutathione S-transferase (GST), calcineurin B like (CBL), calmodulin like (CML) and rapid alkalinisation factor (RAF) were selected for transcript abundance estimation. The qRT-PCR based real time expression exhibited a positive correlation with proteomics expression except for GST and RAF. CONCLUSION Soybean root nodule responds to metal stress by increased abundance of defence, development and repair related proteins. An efficient proteomic modulation might lead to metal-induced stress tolerance in N2-fixing nodules. Although concentrations of Pb and Hg used in the study cannot be considered equimolar, yet Hg seems to induce more changes in nodule proteomic profile, and higher damage to both bacteroides and root anatomy.
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Affiliation(s)
- Mohd Affan Baig
- Proteomics and Bioinformatics Lab, Department of Biotechnology, Jamia Millia Islamia (A Central University), New Delhi, 110025 India
| | - Javed Ahmad
- Proteomics and Bioinformatics Lab, Department of Biotechnology, Jamia Millia Islamia (A Central University), New Delhi, 110025 India
| | - Rita Bagheri
- Proteomics and Bioinformatics Lab, Department of Biotechnology, Jamia Millia Islamia (A Central University), New Delhi, 110025 India
| | - Arlene Asthana Ali
- Proteomics and Bioinformatics Lab, Department of Biotechnology, Jamia Millia Islamia (A Central University), New Delhi, 110025 India
| | - Asma Abdulkareem Al-Huqail
- Department of Botany and Microbiology, Science College, King Saud University, 11495, Riyadh, Saudi Arabia
| | - Mohamed Mohamed Ibrahim
- Department of Botany and Microbiology, Faculty of Science, Alexandria University, P.O. Box 21511, Alexandria, Egypt
| | - Mohammad Irfan Qureshi
- Proteomics and Bioinformatics Lab, Department of Biotechnology, Jamia Millia Islamia (A Central University), New Delhi, 110025 India
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Guan P, Wang J, Li H, Xie C, Zhang S, Wu C, Yang G, Yan K, Huang J, Zheng C. SENSITIVE TO SALT1, An Endoplasmic Reticulum-Localized Chaperone, Positively Regulates Salt Resistance. PLANT PHYSIOLOGY 2018; 178:1390-1405. [PMID: 30287478 PMCID: PMC6236605 DOI: 10.1104/pp.18.00840] [Citation(s) in RCA: 23] [Impact Index Per Article: 3.8] [Reference Citation Analysis] [Abstract] [MESH Headings] [Track Full Text] [Subscribe] [Scholar Register] [Received: 07/12/2018] [Accepted: 09/24/2018] [Indexed: 05/18/2023]
Abstract
Salt stress seriously affects plant growth and development. Through genetic screening, we identified and characterized an Arabidopsis (Arabidopsis thaliana) sensitive to salt1 (ses1) mutant. SES1 was ubiquitously expressed and induced by salt treatment. The salt-sensitive phenotype of ses1 was due neither to the overaccumulation of Na+ nor to the suppression of salt tolerance-associated genes. SES1 encoded an uncharacterized endoplasmic reticulum (ER)-localized protein. Coinciding with its subcellular distribution, ses1 exhibited overactivation of unfolded protein response genes and was largely influenced by severe ER stress. Biochemical evidence revealed that SES1 functions as an important molecular chaperone to alleviate salt-induced ER stress. Furthermore, the ER stress sensor basic leucine zipper factor17 transactivated SES1 by binding directly to its promoter region. These results provide insights into salt stress responses and ER homeostasis and shed light on the mechanism by which SES1 modulates salt resistance.
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Affiliation(s)
- Peiyan Guan
- State Key Laboratory of Crop Biology, College of Life Sciences, Shandong Agricultural University, Tai'an, Shandong 271018, China
| | - Jun Wang
- State Key Laboratory of Crop Biology, College of Life Sciences, Shandong Agricultural University, Tai'an, Shandong 271018, China
| | - Hui Li
- State Key Laboratory of Crop Biology, College of Life Sciences, Shandong Agricultural University, Tai'an, Shandong 271018, China
| | - Chen Xie
- State Key Laboratory of Crop Biology, College of Life Sciences, Shandong Agricultural University, Tai'an, Shandong 271018, China
| | - Shizhong Zhang
- State Key Laboratory of Crop Biology, College of Life Sciences, Shandong Agricultural University, Tai'an, Shandong 271018, China
| | - Changai Wu
- State Key Laboratory of Crop Biology, College of Life Sciences, Shandong Agricultural University, Tai'an, Shandong 271018, China
| | - Guodong Yang
- State Key Laboratory of Crop Biology, College of Life Sciences, Shandong Agricultural University, Tai'an, Shandong 271018, China
| | - Kang Yan
- State Key Laboratory of Crop Biology, College of Life Sciences, Shandong Agricultural University, Tai'an, Shandong 271018, China
| | - Jinguang Huang
- State Key Laboratory of Crop Biology, College of Life Sciences, Shandong Agricultural University, Tai'an, Shandong 271018, China
| | - Chengchao Zheng
- State Key Laboratory of Crop Biology, College of Life Sciences, Shandong Agricultural University, Tai'an, Shandong 271018, China
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Quan S, Niu J, Zhou L, Xu H, Ma L, Qin Y. Identification and characterization of NF-Y gene family in walnut (Juglans regia L.). BMC PLANT BIOLOGY 2018; 18:255. [PMID: 30352551 PMCID: PMC6199752 DOI: 10.1186/s12870-018-1459-2] [Citation(s) in RCA: 7] [Impact Index Per Article: 1.2] [Reference Citation Analysis] [Abstract] [Key Words] [MESH Headings] [Grants] [Track Full Text] [Subscribe] [Scholar Register] [Received: 01/11/2018] [Accepted: 10/03/2018] [Indexed: 05/19/2023]
Abstract
BACKGROUND The eukaryotic transcription factor NF-Y (which consists of NF-YA, NF-YB and NF-YC subunits) is involved in many important plant development processes. There are many reports about the NF-Y family in Arabidopsis and other plant species. However, there are no reports about the NF-Y family in walnut (Juglans regia L.). RESULTS Thirty-three walnut NF-Y genes (JrNF-Ys) were identified and mapped on the walnut genome. The JrNF-Y gene family consisted of 17 NF-YA genes, 9 NF-YB genes, and 7 NF-YC genes. The structural features of the JrNF-Y genes were investigated by comparing their evolutionary relationship and motif distributions. The comparisons indicated the NF-Y gene structure was both conserved and altered during evolution. Functional prediction and protein interaction analysis were performed by comparing the JrNF-Y protein structure with that in Arabidopsis. Two differentially expressed JrNF-Y genes were identified. Their expression was compared with that of three JrCOs and two JrFTs using quantitative real-time PCR (qPCR). The results revealed that the expression of JrCO2 was positively correlated with the expression of JrNF-YA11 and JrNF-YA12. In contrast, JrNF-CO1 and JrNF-YA12 were negatively correlated. CONCLUSIONS Thirty-three JrNF-Ys were identified and their evolutionary, structure, biological function and expression pattern were analyzed. Two of the JrNF-Ys were screened out, their expression was differentially expressed in different development periods of female flower buds, and in different tissues (female flower buds and leaf buds). Based on prediction and experimental data, JrNF-Ys may be involved in flowering regulation by co-regulate the expression of flowering genes with other transcription factors (TFs). The results of this study may make contribution to the further investigation of JrNF-Y family.
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Affiliation(s)
- Shaowen Quan
- Department of Horticulture, College of Agriculture, Shihezi University, Shihezi, Xinjiang, 832003 China
- Xinjiang Production and Construction Corps Key Laboratory of Special Fruits and Vegetables Cultivation Physiology and Germplasm Resources Utilization, Shihezi, Xinjiang, 832003 China
| | - Jianxin Niu
- Department of Horticulture, College of Agriculture, Shihezi University, Shihezi, Xinjiang, 832003 China
- Xinjiang Production and Construction Corps Key Laboratory of Special Fruits and Vegetables Cultivation Physiology and Germplasm Resources Utilization, Shihezi, Xinjiang, 832003 China
| | - Li Zhou
- Department of Horticulture, College of Agriculture, Shihezi University, Shihezi, Xinjiang, 832003 China
- Xinjiang Production and Construction Corps Key Laboratory of Special Fruits and Vegetables Cultivation Physiology and Germplasm Resources Utilization, Shihezi, Xinjiang, 832003 China
| | - Hang Xu
- Department of Horticulture, College of Agriculture, Shihezi University, Shihezi, Xinjiang, 832003 China
- Xinjiang Production and Construction Corps Key Laboratory of Special Fruits and Vegetables Cultivation Physiology and Germplasm Resources Utilization, Shihezi, Xinjiang, 832003 China
| | - Li Ma
- Department of Horticulture, College of Agriculture, Shihezi University, Shihezi, Xinjiang, 832003 China
- Xinjiang Production and Construction Corps Key Laboratory of Special Fruits and Vegetables Cultivation Physiology and Germplasm Resources Utilization, Shihezi, Xinjiang, 832003 China
| | - Yang Qin
- Department of Horticulture, College of Agriculture, Shihezi University, Shihezi, Xinjiang, 832003 China
- Xinjiang Production and Construction Corps Key Laboratory of Special Fruits and Vegetables Cultivation Physiology and Germplasm Resources Utilization, Shihezi, Xinjiang, 832003 China
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Su H, Cao Y, Ku L, Yao W, Cao Y, Ren Z, Dou D, Wang H, Ren Z, Liu H, Tian L, Zheng Y, Chen C, Chen Y. Dual functions of ZmNF-YA3 in photoperiod-dependent flowering and abiotic stress responses in maize. JOURNAL OF EXPERIMENTAL BOTANY 2018; 69:5177-5189. [PMID: 30137393 DOI: 10.1093/jxb/ery299] [Citation(s) in RCA: 20] [Impact Index Per Article: 3.3] [Reference Citation Analysis] [Abstract] [MESH Headings] [Track Full Text] [Subscribe] [Scholar Register] [Received: 03/09/2018] [Accepted: 08/16/2018] [Indexed: 05/22/2023]
Abstract
Nuclear factor-Y (NF-Y) transcription factors are important regulators of several essential biological processes, including embryogenesis, drought resistance, meristem maintenance, and photoperiod-dependent flowering in Arabidopsis. However, the regulatory mechanisms of NF-Ys in maize (Zea mays) are not well understood yet. In this study, we identified an NF-Y transcription factor, ZmNF-YA3. Genome-wide analysis showed that ZmNF-YA3 bound to >6000 sites in the maize genome, 2259 of which are associated with genic sequences. ZmNF-YA3 was found to interact with CONSTANS-like (CO-like) and flowering promoting factor1 (FPF1) through yeast two-hybrid and bimolecular fluorescence complementation (BiFC) assays. Quantitative real-time reverse transcription-PCR (qRT-PCR) combined with yeast one-hybrid assay and EMSA suggested that NF-YA3 could promote early flowering by binding to the FLOWERING LOCUS T-like12 (FT-like12) promoter in maize. Morerover, we also showed that ZmNF-YA3 could improve drought and high-temperature tolerance through binding to the promoter regions of bHLH92, FAMA, and the jasmonic acid activator MYC4, respectively. These results contribute to a comprehensive understanding of the molecular mechanisms and regulatory networks of NF-Y transcription factors in regulating maize flowering time and stress response in maize.
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Affiliation(s)
- Huihui Su
- Synergetic Innovation Centre of Henan Grain Crops and National Key Laboratory of Wheat and Maize Crop Science, Henan Agricultural University, Zhengzhou, China
| | - Yingying Cao
- Synergetic Innovation Centre of Henan Grain Crops and National Key Laboratory of Wheat and Maize Crop Science, Henan Agricultural University, Zhengzhou, China
| | - Lixia Ku
- Synergetic Innovation Centre of Henan Grain Crops and National Key Laboratory of Wheat and Maize Crop Science, Henan Agricultural University, Zhengzhou, China
| | - Wen Yao
- Synergetic Innovation Centre of Henan Grain Crops and National Key Laboratory of Wheat and Maize Crop Science, Henan Agricultural University, Zhengzhou, China
| | - Yanyong Cao
- Henan Academy of Agricultural Science, Zhengzhou, Henan, China
| | - Zhenzhen Ren
- Synergetic Innovation Centre of Henan Grain Crops and National Key Laboratory of Wheat and Maize Crop Science, Henan Agricultural University, Zhengzhou, China
| | - Dandan Dou
- Synergetic Innovation Centre of Henan Grain Crops and National Key Laboratory of Wheat and Maize Crop Science, Henan Agricultural University, Zhengzhou, China
| | - Huitao Wang
- Synergetic Innovation Centre of Henan Grain Crops and National Key Laboratory of Wheat and Maize Crop Science, Henan Agricultural University, Zhengzhou, China
| | - Zhaobin Ren
- Synergetic Innovation Centre of Henan Grain Crops and National Key Laboratory of Wheat and Maize Crop Science, Henan Agricultural University, Zhengzhou, China
| | - Huafeng Liu
- Synergetic Innovation Centre of Henan Grain Crops and National Key Laboratory of Wheat and Maize Crop Science, Henan Agricultural University, Zhengzhou, China
| | - Lei Tian
- Synergetic Innovation Centre of Henan Grain Crops and National Key Laboratory of Wheat and Maize Crop Science, Henan Agricultural University, Zhengzhou, China
| | - Yaogang Zheng
- Synergetic Innovation Centre of Henan Grain Crops and National Key Laboratory of Wheat and Maize Crop Science, Henan Agricultural University, Zhengzhou, China
| | - Chen Chen
- Synergetic Innovation Centre of Henan Grain Crops and National Key Laboratory of Wheat and Maize Crop Science, Henan Agricultural University, Zhengzhou, China
| | - Yanhui Chen
- Synergetic Innovation Centre of Henan Grain Crops and National Key Laboratory of Wheat and Maize Crop Science, Henan Agricultural University, Zhengzhou, China
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Lian H, Xu P, He S, Wu J, Pan J, Wang W, Xu F, Wang S, Pan J, Huang J, Yang HQ. Photoexcited CRYPTOCHROME 1 Interacts Directly with G-Protein β Subunit AGB1 to Regulate the DNA-Binding Activity of HY5 and Photomorphogenesis in Arabidopsis. MOLECULAR PLANT 2018; 11:1248-1263. [PMID: 30176372 DOI: 10.1016/j.molp.2018.08.004] [Citation(s) in RCA: 46] [Impact Index Per Article: 7.7] [Reference Citation Analysis] [Abstract] [Key Words] [MESH Headings] [Track Full Text] [Subscribe] [Scholar Register] [Received: 05/02/2018] [Revised: 07/25/2018] [Accepted: 08/23/2018] [Indexed: 05/25/2023]
Abstract
Light and the heterotrimeric G-protein are known to antagonistically regulate photomorphogenesis in Arabidopsis. However, whether light and G-protein coordinate the regulation of photomorphogenesis is largely unknown. Here we show that the blue light photoreceptor cryptochrome 1 (CRY1) physically interacts with the G-protein β subunit, AGB1, in a blue light-dependent manner. We also show that AGB1 directly interacts with HY5, a basic leucine zipper transcriptional factor that acts as a critical positive regulator of photomorphogenesis, to inhibit its DNA-binding activity. Genetic studies suggest that CRY1 acts partially through AGB1, and AGB1 acts partially through HY5 to regulate photomorphogenesis. Moreover, we demonstrate that blue light-triggered interaction of CRY1 with AGB1 promotes the dissociation of HY5 from AGB1. Our results suggest that the CRY1 signaling mechanism involves positive regulation of the DNA-binding activity of HY5 mediated by the CRY1-AGB1 interaction, which inhibits the association of AGB1 with HY5. We propose that the antagonistic regulation of HY5 DNA-binding activity by CRY1 and AGB1 may allow plants to balance light and G-protein signaling and optimize photomorphogenesis.
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Affiliation(s)
- Hongli Lian
- School of Agriculture and Biology, Shanghai Jiao Tong University, Shanghai 200240, China
| | - Pengbo Xu
- School of Life Sciences and Biotechnology, Shanghai Jiao Tong University, Shanghai 200240, China
| | - Shengbo He
- School of Agriculture and Biology, Shanghai Jiao Tong University, Shanghai 200240, China
| | - Jun Wu
- School of Agriculture and Biology, Shanghai Jiao Tong University, Shanghai 200240, China
| | - Jian Pan
- School of Agriculture and Biology, Shanghai Jiao Tong University, Shanghai 200240, China
| | - Wenxiu Wang
- College of Life and Environmental Sciences, Shanghai Normal University, Shanghai 200234, China
| | - Feng Xu
- State Key Laboratory of Genetic Engineering, Collaborative Innovation Center for Genetics and Development, School of Life Sciences, Fudan University, Shanghai 200438, China
| | - Sheng Wang
- School of Life Sciences and Biotechnology, Shanghai Jiao Tong University, Shanghai 200240, China
| | - Junsong Pan
- School of Agriculture and Biology, Shanghai Jiao Tong University, Shanghai 200240, China
| | - Jirong Huang
- College of Life and Environmental Sciences, Shanghai Normal University, Shanghai 200234, China
| | - Hong-Quan Yang
- College of Life and Environmental Sciences, Shanghai Normal University, Shanghai 200234, China.
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Dröge-Laser W, Snoek BL, Snel B, Weiste C. The Arabidopsis bZIP transcription factor family-an update. CURRENT OPINION IN PLANT BIOLOGY 2018; 45:36-49. [PMID: 29860175 DOI: 10.1016/j.pbi.2018.05.001] [Citation(s) in RCA: 230] [Impact Index Per Article: 38.3] [Reference Citation Analysis] [Abstract] [MESH Headings] [Track Full Text] [Subscribe] [Scholar Register] [Received: 02/24/2018] [Revised: 03/30/2018] [Accepted: 05/02/2018] [Indexed: 05/18/2023]
Abstract
The basic (region) leucine zippers (bZIPs) are evolutionarily conserved transcription factors in eukaryotic organisms. Here, we have updated the classification of the Arabidopsis thaliana bZIP-family, comprising 78 members, which have been assorted into 13 groups. Arabidopsis bZIPs are involved in a plethora of functions related to plant development, environmental signalling and stress response. Based on the classification, we have highlighted functional and regulatory aspects of selected well-studied bZIPs, which may serve as prototypic examples for the particular groups.
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Affiliation(s)
- Wolfgang Dröge-Laser
- Department of Pharmaceutical Biology, Julius-von-Sachs-Institute, Biocenter, Julius-Maximilians-Universität Würzburg, Würzburg 97082, Germany.
| | - Basten L Snoek
- Theoretical Biology and Bioinformatics, Department of Biology, Faculty of Science, Utrecht University, Padualaan 8, Utrecht 3584 CH, The Netherlands
| | - Berend Snel
- Theoretical Biology and Bioinformatics, Department of Biology, Faculty of Science, Utrecht University, Padualaan 8, Utrecht 3584 CH, The Netherlands
| | - Christoph Weiste
- Department of Pharmaceutical Biology, Julius-von-Sachs-Institute, Biocenter, Julius-Maximilians-Universität Würzburg, Würzburg 97082, Germany.
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Myers ZA, Holt BF. NUCLEAR FACTOR-Y: still complex after all these years? CURRENT OPINION IN PLANT BIOLOGY 2018; 45:96-102. [PMID: 29902675 DOI: 10.1016/j.pbi.2018.05.015] [Citation(s) in RCA: 50] [Impact Index Per Article: 8.3] [Reference Citation Analysis] [Abstract] [MESH Headings] [Track Full Text] [Subscribe] [Scholar Register] [Received: 02/19/2018] [Revised: 04/11/2018] [Accepted: 05/22/2018] [Indexed: 06/08/2023]
Abstract
The NUCLEAR FACTOR-Y (NF-Y) families of transcription factors are important regulators of plant development and physiology. Though NF-Y regulatory roles have recently been suggested for numerous aspects of plant biology, their roles in flowering time, early seedling development, stress responses, hormone signaling, and nodulation are the best characterized. The past few years have also seen significant advances in our understanding of the mechanistic function of the NF-Y, and as such, increasingly complex and interesting questions are now more approachable. This review will primarily focus on these developmental, physiological, and mechanistic roles of the NF-Y in recent research.
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Affiliation(s)
- Zachary A Myers
- University of Oklahoma, Department of Microbiology and Plant Biology, 770 Van Vleet Oval, Norman, OK 73019, United States.
| | - Ben F Holt
- University of Oklahoma, Department of Microbiology and Plant Biology, 770 Van Vleet Oval, Norman, OK 73019, United States.
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125
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Wu X, Shi H, Guo Z. Overexpression of a NF-YC Gene Results in Enhanced Drought and Salt Tolerance in Transgenic Seashore Paspalum. FRONTIERS IN PLANT SCIENCE 2018; 9:1355. [PMID: 30298080 PMCID: PMC6160577 DOI: 10.3389/fpls.2018.01355] [Citation(s) in RCA: 16] [Impact Index Per Article: 2.7] [Reference Citation Analysis] [Abstract] [Key Words] [Track Full Text] [Subscribe] [Scholar Register] [Received: 02/09/2018] [Accepted: 08/28/2018] [Indexed: 06/03/2023]
Abstract
Seashore paspalum (Paspalum vaginatum O. Swartz) is an important warm-season turfgrass species. In this study we generated transgenic seashore paspalum overexpressing CdtNF-YC1, a nuclear factor Y transcription factor from hybrid bermudagrass (Cynodon dactylon × Cynodon transvaalensis). DNA blot hybridization and qRT-PCR analysis showed that CdtNF-YC1 was integrated into the genomes of transgenic seashore paspalum plants and expressed. Reduced relative water content (RWC) and survival rate and increased ion leakage were observed in both wild type (WT) and transgenic plants after drought stress, while transgenic plants had higher levels of RWC and survival rate and lower ion leakage than the WT. Maximal photochemical efficiency of photosystem II (F v/F m), chlorophyll concentration and survival rate were decreased after salt stress, while higher levels were maintained in transgenic plants than in WT. In addition, an increased Na+ content and decreased or unaltered K+ in leaves and roots were observed after salt treatment, while lower level of Na+ and higher levels of K+ and K+/ Na+ ratio were maintained in transgenic plants than in WT. The results indicated that overexpressing CdtNF-YC1 resulted in enhanced drought and salt tolerance in transgenic plants. Transcript levels of stress responsive genes including PvLEA3, PvP5CS1, PvABI2, and PvDREB1B were induced in response to drought and salt stress, and higher levels were observed in transgenic seashore paspalum than in WT. The results suggest that the enhanced drought and salt tolerance in transgenic seashore paspalum is associated with induction of a series of stress responsive genes as a result of overexpression of CdtNF-YC1.
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Affiliation(s)
| | - Haifan Shi
- College of Grassland Science, Nanjing Agricultural UniversityNanjing, China
| | - Zhenfei Guo
- College of Grassland Science, Nanjing Agricultural UniversityNanjing, China
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126
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Geng X, Zang X, Li H, Liu Z, Zhao A, Liu J, Peng H, Yao Y, Hu Z, Ni Z, Sun Q, Xin M. Unconventional splicing of wheat TabZIP60 confers heat tolerance in transgenic Arabidopsis. PLANT SCIENCE : AN INTERNATIONAL JOURNAL OF EXPERIMENTAL PLANT BIOLOGY 2018; 274:252-260. [PMID: 30080611 DOI: 10.1016/j.plantsci.2018.05.029] [Citation(s) in RCA: 7] [Impact Index Per Article: 1.2] [Reference Citation Analysis] [Abstract] [Key Words] [MESH Headings] [Track Full Text] [Subscribe] [Scholar Register] [Received: 01/03/2018] [Revised: 05/22/2018] [Accepted: 05/26/2018] [Indexed: 05/18/2023]
Abstract
Conditions that disrupt protein folding, such as heat stress, can overwhelm the capacity of cells to fold proteins, thus causing endoplasmic reticulum (ER) stress. In Arabidopsis thaliana and other plants, inositol-requiring enzyme-1 mediated unconventional splicing of bZIP60 plays a crucial role in the heat and ER stress responses. However, little is known about this pathway in wheat (Triticum aestivum), especially its importance in heat tolerance. Here, we found that heat stress induced upregulation and unconventional splicing of TabZIP60 occurred in wheat seedlings. Constitutive expression of the spliced form of TabZIP60 (TabZIP60s) enhanced heat tolerance in Arabidopsis, but overexpression of the unspliced form (TabZIP60u) did not. RNA-sequencing analysis revealed ER stress related genes involved in heat responses in TabZIP60s-overexpression transgenic Arabidopsis. Chromatin immunoprecipitation-qPCR showed that TabZIP60s directly binds to 17 target genes including AtbZIP60. Also, the 26S proteasome pathway post-translationally regulates TabZIP60s levels during heat stress responses. Our findings suggest that unconventional splicing of TabZIP60 could contribute to heat tolerance in transgenic plants by modulating the expression of ER stress-related genes.
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Affiliation(s)
- Xiaoli Geng
- State Key Laboratory for Agrobiotechnology, Key Laboratory of Crop Heterosis and Utilization (MOE), Key Laboratory of Crop Genomics and Genetic Improvement (MOA), Beijing Key Laboratory of Crop Genetic Improvement, China Agricultural University, Beijing, 100193, China; State Key Laboratory of Cotton Biology, Institute of Cotton Research of the Chinese Academy of Agricultural Sciences, Anyang, 455000, China
| | - Xinshan Zang
- State Key Laboratory for Agrobiotechnology, Key Laboratory of Crop Heterosis and Utilization (MOE), Key Laboratory of Crop Genomics and Genetic Improvement (MOA), Beijing Key Laboratory of Crop Genetic Improvement, China Agricultural University, Beijing, 100193, China; State Key Laboratory of Cotton Biology, Institute of Cotton Research of the Chinese Academy of Agricultural Sciences, Anyang, 455000, China
| | - Haoran Li
- State Key Laboratory for Agrobiotechnology, Key Laboratory of Crop Heterosis and Utilization (MOE), Key Laboratory of Crop Genomics and Genetic Improvement (MOA), Beijing Key Laboratory of Crop Genetic Improvement, China Agricultural University, Beijing, 100193, China
| | - Zhenshan Liu
- State Key Laboratory for Agrobiotechnology, Key Laboratory of Crop Heterosis and Utilization (MOE), Key Laboratory of Crop Genomics and Genetic Improvement (MOA), Beijing Key Laboratory of Crop Genetic Improvement, China Agricultural University, Beijing, 100193, China
| | - Aiju Zhao
- Hebei Academy of Agriculture and Forest Sciences, Shijiazhuang, 050035, China
| | - Jian Liu
- Seed Management Station of Shanghai, No. 628, Wuzhong Road, Minhang District, Shanghai, China
| | - Huiru Peng
- State Key Laboratory for Agrobiotechnology, Key Laboratory of Crop Heterosis and Utilization (MOE), Key Laboratory of Crop Genomics and Genetic Improvement (MOA), Beijing Key Laboratory of Crop Genetic Improvement, China Agricultural University, Beijing, 100193, China
| | - Yingyin Yao
- State Key Laboratory for Agrobiotechnology, Key Laboratory of Crop Heterosis and Utilization (MOE), Key Laboratory of Crop Genomics and Genetic Improvement (MOA), Beijing Key Laboratory of Crop Genetic Improvement, China Agricultural University, Beijing, 100193, China
| | - Zhaorong Hu
- State Key Laboratory for Agrobiotechnology, Key Laboratory of Crop Heterosis and Utilization (MOE), Key Laboratory of Crop Genomics and Genetic Improvement (MOA), Beijing Key Laboratory of Crop Genetic Improvement, China Agricultural University, Beijing, 100193, China
| | - Zhongfu Ni
- State Key Laboratory for Agrobiotechnology, Key Laboratory of Crop Heterosis and Utilization (MOE), Key Laboratory of Crop Genomics and Genetic Improvement (MOA), Beijing Key Laboratory of Crop Genetic Improvement, China Agricultural University, Beijing, 100193, China
| | - Qixin Sun
- State Key Laboratory for Agrobiotechnology, Key Laboratory of Crop Heterosis and Utilization (MOE), Key Laboratory of Crop Genomics and Genetic Improvement (MOA), Beijing Key Laboratory of Crop Genetic Improvement, China Agricultural University, Beijing, 100193, China
| | - Mingming Xin
- State Key Laboratory for Agrobiotechnology, Key Laboratory of Crop Heterosis and Utilization (MOE), Key Laboratory of Crop Genomics and Genetic Improvement (MOA), Beijing Key Laboratory of Crop Genetic Improvement, China Agricultural University, Beijing, 100193, China.
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127
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Ozgur R, Uzilday B, Iwata Y, Koizumi N, Turkan I. Interplay between the unfolded protein response and reactive oxygen species: a dynamic duo. JOURNAL OF EXPERIMENTAL BOTANY 2018; 69:3333-3345. [PMID: 29415271 DOI: 10.1093/jxb/ery040] [Citation(s) in RCA: 38] [Impact Index Per Article: 6.3] [Reference Citation Analysis] [Abstract] [MESH Headings] [Track Full Text] [Subscribe] [Scholar Register] [Received: 11/30/2017] [Accepted: 01/26/2018] [Indexed: 05/20/2023]
Abstract
Secretory proteins undergo modifications such as glycosylation and disulphide bond formation before proper folding, and move to their final destination via the endomembrane system. Accumulation of unfolded proteins in the endoplasmic reticulum (ER) due to suboptimal environmental conditions triggers a response called the unfolded protein response (UPR), which induces a set of genes that elevate protein folding capacity in the ER. This review aims to establish a connection among ER stress, UPR, and reactive oxygen species (ROS), which remains an unexplored topic in plants. For this, we focused on mechanisms of ROS production originating from ER stress, the interaction between ER stress and overall ROS signalling process in the cell, and the interaction of ER stress with other organellar ROS signalling pathways such as of the mitochondria and chloroplasts. The roles of the UPR during plant hormone signalling and abiotic and biotic stress responses are also discussed in connection with redox and ROS signalling.
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Affiliation(s)
- Rengin Ozgur
- Ege University, Faculty of Science, Department of Biology, Izmir, Turkey
| | - Baris Uzilday
- Ege University, Faculty of Science, Department of Biology, Izmir, Turkey
| | - Yuji Iwata
- Graduate School of Life and Environmental Sciences, Osaka Prefecture University, Gakuen-cho, Naka-ku, Sakai Osaka, Japan
| | - Nozomu Koizumi
- Graduate School of Life and Environmental Sciences, Osaka Prefecture University, Gakuen-cho, Naka-ku, Sakai Osaka, Japan
| | - Ismail Turkan
- Ege University, Faculty of Science, Department of Biology, Izmir, Turkey
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128
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Pereira SLS, Martins CPS, Sousa AO, Camillo LR, Araújo CP, Alcantara GM, Camargo DS, Cidade LC, de Almeida AAF, Costa MGC. Genome-wide characterization and expression analysis of citrus NUCLEAR FACTOR-Y (NF-Y) transcription factors identified a novel NF-YA gene involved in drought-stress response and tolerance. PLoS One 2018; 13:e0199187. [PMID: 29906271 PMCID: PMC6003680 DOI: 10.1371/journal.pone.0199187] [Citation(s) in RCA: 19] [Impact Index Per Article: 3.2] [Reference Citation Analysis] [Abstract] [MESH Headings] [Grants] [Track Full Text] [Download PDF] [Figures] [Journal Information] [Subscribe] [Scholar Register] [Received: 02/16/2018] [Accepted: 06/01/2018] [Indexed: 01/03/2023] Open
Abstract
Nuclear factor Y (NF-Y) is a ubiquitous transcription factor found in eukaryotes. It is composed of three distinct subunits called NF-YA, NF-YB and NF-YC. NF-Ys have been identified as key regulators of multiple pathways in the control of development and tolerance to biotic and abiotic factors. The present study aimed to identify and characterize the complete repertoire of genes coding for NF-Y in citrus, as well as to perform the functional characterization of one of its members, namely CsNFYA5, in transgenic tobacco plants. A total of 22 genes coding for NF-Y were identified in the genomes of sweet orange (Citrus sinensis) and Clementine mandarin (C. clementina), including six CsNF-YAs, 11 CsNF-YBs and five CsNF-YCs. Phylogenetic analyses showed that there is a NF-Y orthologous in the Clementine genome for each sweet orange NF-Y gene; this was not observed when compared to Arabidopsis thaliana. CsNF-Y proteins shared the same conserved domains with their orthologous proteins in other organisms, including mouse. Analysis of gene expression by RNA-seq and EST data demonstrated that CsNF-Ys have a tissue-specific and stress inducible expression profile. qRT-PCR analysis revealed that CsNF-YA5 exhibits differential expression in response to water deficit in leaves and roots of citrus plants. Overexpression of CsNF-YA5 in transgenic tobacco plants contributed to the reduction of H2O2 production under dehydration conditions and increased plant growth and photosynthetic rate under normal conditions and drought stress. These biochemical and physiological responses to drought stress promoted by CsNF-YA5 may confer a productivity advantage in environments with frequent short-term soil water deficit.
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Affiliation(s)
- Suzam L. S. Pereira
- Centro de Biotecnologia e Genética, Departamento de Ciências Biológicas, Universidade Estadual de Santa Cruz, Ilhéus, Bahia, Brazil
| | - Cristina P. S. Martins
- Centro de Biotecnologia e Genética, Departamento de Ciências Biológicas, Universidade Estadual de Santa Cruz, Ilhéus, Bahia, Brazil
| | - Aurizangela O. Sousa
- Centro de Biotecnologia e Genética, Departamento de Ciências Biológicas, Universidade Estadual de Santa Cruz, Ilhéus, Bahia, Brazil
| | - Luciana R. Camillo
- Centro de Biotecnologia e Genética, Departamento de Ciências Biológicas, Universidade Estadual de Santa Cruz, Ilhéus, Bahia, Brazil
| | - Caroline P. Araújo
- Centro de Biotecnologia e Genética, Departamento de Ciências Biológicas, Universidade Estadual de Santa Cruz, Ilhéus, Bahia, Brazil
| | - Grazielle M. Alcantara
- Centro de Biotecnologia e Genética, Departamento de Ciências Biológicas, Universidade Estadual de Santa Cruz, Ilhéus, Bahia, Brazil
| | - Danielle S. Camargo
- Centro de Biotecnologia e Genética, Departamento de Ciências Biológicas, Universidade Estadual de Santa Cruz, Ilhéus, Bahia, Brazil
| | - Luciana C. Cidade
- Centro de Biotecnologia e Genética, Departamento de Ciências Biológicas, Universidade Estadual de Santa Cruz, Ilhéus, Bahia, Brazil
| | - Alex-Alan F. de Almeida
- Centro de Biotecnologia e Genética, Departamento de Ciências Biológicas, Universidade Estadual de Santa Cruz, Ilhéus, Bahia, Brazil
| | - Marcio G. C. Costa
- Centro de Biotecnologia e Genética, Departamento de Ciências Biológicas, Universidade Estadual de Santa Cruz, Ilhéus, Bahia, Brazil
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Yu C, Chen Y, Cao Y, Chen H, Wang J, Bi YM, Tian F, Yang F, Rothstein SJ, Zhou X, He C. Overexpression of miR169o, an Overlapping MicroRNA in Response to Both Nitrogen Limitation and Bacterial Infection, Promotes Nitrogen Use Efficiency and Susceptibility to Bacterial Blight in Rice. PLANT & CELL PHYSIOLOGY 2018; 59:1234-1247. [PMID: 29566243 DOI: 10.1093/pcp/pcy060] [Citation(s) in RCA: 36] [Impact Index Per Article: 6.0] [Reference Citation Analysis] [Abstract] [MESH Headings] [Track Full Text] [Subscribe] [Scholar Register] [Received: 07/17/2017] [Accepted: 03/14/2018] [Indexed: 05/04/2023]
Abstract
Limiting nitrogen (N) supply contributes to improved resistance to bacterial blight (BB) caused by Xanthomonas oryzae pv. oryzae (Xoo) in susceptible rice (Oryza sativa). To understand the regulatory roles of microRNAs (miRNAs) in this phenomenon, 63 differentially expressed overlapping miRNAs in response to Xoo infection and N limitation stress in rice were identified through deep RNA sequencing and stem-loop quantitative real-time PCR. Among these, miR169o was further assessed as a typical overlapping miRNA through the overexpression of the miR169o primary gene. Osa-miR169o-OX plants were taller, and had more biomass accumulation with significantly increased nitrate and total amino acid contents in roots than the wild type (WT). Transcript level assays showed that under different N supply conditions, miR169o oppositely regulated NRT2, and this is reduced under normal N supply conditions but remarkably induced under N-limiting stress. On the other hand, osa-miR169o-OX plants also displayed increased disease lesion lengths and reduced transcriptional levels of defense gene (PR1b, PR10a, PR10b and PAL) compared with the WT after inoculation with Xoo. In addition, miR169o impeded Xoo-mediated NRT transcription. Therefore, the overlapping miR169o contributes to increase N use efficiency and negatively regulates the resistance to BB in rice. Consistently, transient expression of NF-YA genes in rice protoplasts promoted the transcripts of PR genes and NRT2 genes, while it reduced the transcripts of NRT1 genes. Our results provide novel and additional insights into the co ordinated regulatory mechanisms of cross-talk between Xoo infection and N deficiency responses in rice.
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Affiliation(s)
- Chao Yu
- State Key Laboratory for Biology of Plant Diseases and Insect Pests, Institute of Plant Protection, Chinese Academy of Agricultural Sciences, Beijing 100193, China
| | - Yutong Chen
- State Key Laboratory for Biology of Plant Diseases and Insect Pests, Institute of Plant Protection, Chinese Academy of Agricultural Sciences, Beijing 100193, China
| | - Yaqian Cao
- State Key Laboratory for Biology of Plant Diseases and Insect Pests, Institute of Plant Protection, Chinese Academy of Agricultural Sciences, Beijing 100193, China
| | - Huamin Chen
- State Key Laboratory for Biology of Plant Diseases and Insect Pests, Institute of Plant Protection, Chinese Academy of Agricultural Sciences, Beijing 100193, China
| | - Jichun Wang
- Institute of Plant Protection, Jilin Academy of Agricultural Sciences, Gongzhuling 136100, China
| | - Yong-Mei Bi
- Department of Molecular and Cellular Biology, University of Guelph, Guelph, ON N1G 2W1, Canada
| | - Fang Tian
- State Key Laboratory for Biology of Plant Diseases and Insect Pests, Institute of Plant Protection, Chinese Academy of Agricultural Sciences, Beijing 100193, China
| | - Fenghuan Yang
- State Key Laboratory for Biology of Plant Diseases and Insect Pests, Institute of Plant Protection, Chinese Academy of Agricultural Sciences, Beijing 100193, China
| | - Steven J Rothstein
- Department of Molecular and Cellular Biology, University of Guelph, Guelph, ON N1G 2W1, Canada
| | - Xueping Zhou
- State Key Laboratory for Biology of Plant Diseases and Insect Pests, Institute of Plant Protection, Chinese Academy of Agricultural Sciences, Beijing 100193, China
| | - Chenyang He
- State Key Laboratory for Biology of Plant Diseases and Insect Pests, Institute of Plant Protection, Chinese Academy of Agricultural Sciences, Beijing 100193, China
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130
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Wang B, Li Z, Ran Q, Li P, Peng Z, Zhang J. ZmNF-YB16 Overexpression Improves Drought Resistance and Yield by Enhancing Photosynthesis and the Antioxidant Capacity of Maize Plants. FRONTIERS IN PLANT SCIENCE 2018; 9:709. [PMID: 29896208 PMCID: PMC5986874 DOI: 10.3389/fpls.2018.00709] [Citation(s) in RCA: 20] [Impact Index Per Article: 3.3] [Reference Citation Analysis] [Abstract] [Key Words] [Track Full Text] [Subscribe] [Scholar Register] [Received: 03/17/2018] [Accepted: 05/09/2018] [Indexed: 05/22/2023]
Abstract
ZmNF-YB16 is a basic NF-YB superfamily member and a member of a transcription factor complex composed of NF-YA, NF-YB, and NF-YC in maize. ZmNF-YB16 was transformed into the inbred maize line B104 to produce homozygous overexpression lines. ZmNF-YB16 overexpression improves dehydration and drought stress resistance in maize plants during vegetative and reproductive stages by maintaining higher photosynthesis and increases the maize grain yield under normal and drought stress conditions. Based on the examination of differentially expressed genes between the wild-type (WT) and transgenic lines by quantitative real time PCR (qRT-PCR), ZmNF-YB16 overexpression increased the expression of genes encoding antioxidant enzymes, the antioxidant synthase, and molecular chaperones associated with the endoplasmic reticulum (ER) stress response, and improved protection mechanism for photosynthesis system II. Plants that overexpression ZmNF-YB16 showed a higher rate of photosynthesis and antioxidant enzyme activity, better membrane stability and lower electrolyte leakage under control and drought stress conditions. These results suggested that ZmNF-YB16 played an important role in drought resistance in maize by regulating the expression of a number of genes involved in photosynthesis, the cellular antioxidant capacity and the ER stress response.
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Affiliation(s)
| | | | | | | | | | - Juren Zhang
- School of Life Sciences, Shandong University, Jinan, China
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131
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Zhao X, Guo X, Tang X, Zhang H, Wang M, Kong Y, Zhang X, Zhao Z, Lv M, Li L. Misregulation of ER-Golgi Vesicle Transport Induces ER Stress and Affects Seed Vigor and Stress Response. FRONTIERS IN PLANT SCIENCE 2018; 9:658. [PMID: 29868102 PMCID: PMC5968616 DOI: 10.3389/fpls.2018.00658] [Citation(s) in RCA: 7] [Impact Index Per Article: 1.2] [Reference Citation Analysis] [Abstract] [Key Words] [Track Full Text] [Subscribe] [Scholar Register] [Received: 01/26/2018] [Accepted: 04/30/2018] [Indexed: 05/20/2023]
Abstract
Seeds of higher plants accumulate numerous storage proteins to use as nitrogen resources for early plant development. Seed storage proteins (SSPs) are synthesized as large precursors on the rough endoplasmic reticulum (rER), and are delivered to protein storage vacuoles (PSVs) via vesicle transport, where they are processed to mature forms. We previously identified an Arabidopsis ER-localized tethering complex, MAG2 complex, which might be involved in Golgi to ER retrograde transport. The MAG2 complex is composed of 4 subunits, MAG2, MIP1, MIP2, and MIP3. Mutants with defective alleles for these subunits accumulated SSP precursors inside the ER lumen. Here, we report that the mag2-1 mip3-1 and mip2-1 mip3-1 double mutant have more serious vesicle transport defects than the mag2-1, mip2-1, and mip3-1 single mutants, since they accumulate more SSP precursors than the corresponding single mutants, and ER stress is more severe than the single mutants. The mag2-1 mip3-1 and mip2-1 mip3-1 double mutants show growth and developmental defects rather than the single mutants. Both single and double mutant seeds are found to have lower protein content and decreased germinating vigor than wild type seeds. All the mutants are sensitive to abscisic acid (ABA) and salt stress, and exhibit alteration in ABA signaling pathway. Our study clarified that ER-Golgi vesicle transport affects seed vigor through controlling seed protein quality and content, as well as plant response to environmental stress via influencing ABA signaling pathway.
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Affiliation(s)
- Xiaonan Zhao
- Key Laboratory of Saline-alkali Vegetation Ecology Restoration, Ministry of Education, Alkali Soil Natural Environmental Science Center, Northeast Forestry University, Harbin, China
| | - Xiufen Guo
- Key Laboratory of Saline-alkali Vegetation Ecology Restoration, Ministry of Education, Alkali Soil Natural Environmental Science Center, Northeast Forestry University, Harbin, China
| | - Xiaofei Tang
- Key Laboratory of Saline-alkali Vegetation Ecology Restoration, Ministry of Education, Alkali Soil Natural Environmental Science Center, Northeast Forestry University, Harbin, China
- Institute of Soybean Research, Heilongjiang Provincial Academy of Agricultural Sciences, Harbin, China
| | - Hailong Zhang
- Key Laboratory of Saline-alkali Vegetation Ecology Restoration, Ministry of Education, Alkali Soil Natural Environmental Science Center, Northeast Forestry University, Harbin, China
| | - Mingjing Wang
- Key Laboratory of Saline-alkali Vegetation Ecology Restoration, Ministry of Education, Alkali Soil Natural Environmental Science Center, Northeast Forestry University, Harbin, China
| | - Yun Kong
- Key Laboratory of Saline-alkali Vegetation Ecology Restoration, Ministry of Education, Alkali Soil Natural Environmental Science Center, Northeast Forestry University, Harbin, China
| | - Xiaomeng Zhang
- Key Laboratory of Saline-alkali Vegetation Ecology Restoration, Ministry of Education, Alkali Soil Natural Environmental Science Center, Northeast Forestry University, Harbin, China
| | - Zhenjie Zhao
- Key Laboratory of Saline-alkali Vegetation Ecology Restoration, Ministry of Education, Alkali Soil Natural Environmental Science Center, Northeast Forestry University, Harbin, China
| | - Min Lv
- Key Laboratory of Saline-alkali Vegetation Ecology Restoration, Ministry of Education, Alkali Soil Natural Environmental Science Center, Northeast Forestry University, Harbin, China
| | - Lixin Li
- Key Laboratory of Saline-alkali Vegetation Ecology Restoration, Ministry of Education, Alkali Soil Natural Environmental Science Center, Northeast Forestry University, Harbin, China
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132
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Salicylic acid-independent role of NPR1 is required for protection from proteotoxic stress in the plant endoplasmic reticulum. Proc Natl Acad Sci U S A 2018; 115:E5203-E5212. [PMID: 29760094 DOI: 10.1073/pnas.1802254115] [Citation(s) in RCA: 52] [Impact Index Per Article: 8.7] [Reference Citation Analysis] [Abstract] [Key Words] [Track Full Text] [Journal Information] [Subscribe] [Scholar Register] [Indexed: 12/31/2022] Open
Abstract
The unfolded protein response (UPR) is an ancient signaling pathway designed to protect cells from the accumulation of unfolded and misfolded proteins in the endoplasmic reticulum (ER). Because misregulation of the UPR is potentially lethal, a stringent surveillance signaling system must be in place to modulate the UPR. The major signaling arms of the plant UPR have been discovered and rely on the transcriptional activity of the transcription factors bZIP60 and bZIP28 and on the kinase and ribonuclease activity of IRE1, which splices mRNA to activate bZIP60. Both bZIP28 and bZIP60 modulate UPR gene expression to overcome ER stress. In this study, we demonstrate at a genetic level that the transcriptional role of bZIP28 and bZIP60 in ER-stress responses is antagonized by nonexpressor of PR1 genes 1 (NPR1), a critical redox-regulated master regulator of salicylic acid (SA)-dependent responses to pathogens, independently of its role in SA defense. We also establish that the function of NPR1 in the UPR is concomitant with ER stress-induced reduction of the cytosol and translocation of NPR1 to the nucleus where it interacts with bZIP28 and bZIP60. Our results support a cellular role for NPR1 as well as a model for plant UPR regulation whereby SA-independent ER stress-induced redox activation of NPR1 suppresses the transcriptional role of bZIP28 and bZIP60 in the UPR.
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133
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Xu F, He S, Zhang J, Mao Z, Wang W, Li T, Hua J, Du S, Xu P, Li L, Lian H, Yang HQ. Photoactivated CRY1 and phyB Interact Directly with AUX/IAA Proteins to Inhibit Auxin Signaling in Arabidopsis. MOLECULAR PLANT 2018; 11:523-541. [PMID: 29269022 DOI: 10.1016/j.molp.2017.12.003] [Citation(s) in RCA: 98] [Impact Index Per Article: 16.3] [Reference Citation Analysis] [Abstract] [Key Words] [MESH Headings] [Track Full Text] [Subscribe] [Scholar Register] [Received: 11/21/2017] [Revised: 12/11/2017] [Accepted: 12/11/2017] [Indexed: 05/04/2023]
Abstract
Light is a key environmental cue that inhibits hypocotyl cell elongation through the blue and red/far-red light photoreceptors cryptochrome- and phytochrome-mediated pathways in Arabidopsis. In contrast, as a pivotal endogenous phytohormone auxin promotes hypocotyl elongation through the auxin receptors TIR1/AFBs-mediated degradation of AUX/IAA proteins (AUX/IAAs). However, the molecular mechanisms underlying the antagonistic interaction of light and auxin signaling remain unclear. Here, we report that light inhibits auxin signaling through stabilization of AUX/IAAs by blue and red light-dependent interactions of cryptochrome 1 (CRY1) and phytochrome B with AUX/IAAs, respectively. Blue light-triggered interactions of CRY1 with AUX/IAAs inhibit the associations of TIR1 with AUX/IAAs, leading to the repression of auxin-induced degradation of these proteins. Our results indicate that photoreceptors share AUX/IAAs with auxin receptors as the same direct downstream signaling components. We propose that antagonistic regulation of AUX/IAA protein stability by photoreceptors and auxin receptors allows plants to balance light and auxin signals to optimize their growth.
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Affiliation(s)
- Feng Xu
- State Key Laboratory of Genetic Engineering, Collaborative Innovation Center for Genetics and Development, School of Life Sciences, Fudan University, Shanghai 200438, China
| | - Shengbo He
- School of Agriculture and Biology/School of Life Sciences and Biotechnology, Shanghai Jiaotong University, Shanghai 200240, China
| | - Jingyi Zhang
- School of Agriculture and Biology/School of Life Sciences and Biotechnology, Shanghai Jiaotong University, Shanghai 200240, China
| | - Zhilei Mao
- State Key Laboratory of Genetic Engineering, Collaborative Innovation Center for Genetics and Development, School of Life Sciences, Fudan University, Shanghai 200438, China
| | - Wenxiu Wang
- State Key Laboratory of Genetic Engineering, Collaborative Innovation Center for Genetics and Development, School of Life Sciences, Fudan University, Shanghai 200438, China
| | - Ting Li
- School of Agriculture and Biology/School of Life Sciences and Biotechnology, Shanghai Jiaotong University, Shanghai 200240, China
| | - Jie Hua
- State Key Laboratory of Genetic Engineering, Collaborative Innovation Center for Genetics and Development, School of Life Sciences, Fudan University, Shanghai 200438, China
| | - Shasha Du
- State Key Laboratory of Genetic Engineering, Collaborative Innovation Center for Genetics and Development, School of Life Sciences, Fudan University, Shanghai 200438, China
| | - Pengbo Xu
- School of Agriculture and Biology/School of Life Sciences and Biotechnology, Shanghai Jiaotong University, Shanghai 200240, China
| | - Ling Li
- School of Agriculture and Biology/School of Life Sciences and Biotechnology, Shanghai Jiaotong University, Shanghai 200240, China
| | - Hongli Lian
- School of Agriculture and Biology/School of Life Sciences and Biotechnology, Shanghai Jiaotong University, Shanghai 200240, China
| | - Hong-Quan Yang
- State Key Laboratory of Genetic Engineering, Collaborative Innovation Center for Genetics and Development, School of Life Sciences, Fudan University, Shanghai 200438, China.
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134
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Figueiredo J, Sousa Silva M, Figueiredo A. Subtilisin-like proteases in plant defence: the past, the present and beyond. MOLECULAR PLANT PATHOLOGY 2018; 19:1017-1028. [PMID: 28524452 PMCID: PMC6638164 DOI: 10.1111/mpp.12567] [Citation(s) in RCA: 75] [Impact Index Per Article: 12.5] [Reference Citation Analysis] [Abstract] [Key Words] [MESH Headings] [Track Full Text] [Subscribe] [Scholar Register] [Received: 03/07/2017] [Revised: 04/19/2017] [Accepted: 05/13/2017] [Indexed: 05/13/2023]
Abstract
Subtilisin-like proteases (or subtilases) are a very diverse family of serine peptidases present in many organisms, but mostly in plants. With a broad spectrum of biological functions, ranging from protein turnover and plant development to interactions with the environment, subtilases have been gaining increasing attention with regard to their involvement in plant defence responses against the most diverse pathogens. Over the last 5 years, the number of published studies associating plant subtilases with pathogen resistance and plant immunity has increased tremendously. In addition, the observation of subtilases and serine protease inhibitors secreted by pathogens has also gained prominence. In this review, we focus on the active participation of subtilases in the interactions established by plants with the environment, highlighting their role in plant-pathogen communication.
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Affiliation(s)
- Joana Figueiredo
- Biosystems & Integrative Sciences Institute (BioISI)Faculdade de Ciências da Universidade de LisboaLisbon 1749‐016Portugal
- Laboratório de FTICR e Espectrometria de Massa EstruturalFaculdade de Ciências da Universidade de LisboaLisbon 1749‐016Portugal
- Centro de Química e BioquímicaFaculdade de Ciências da Universidade de LisboaLisbon 1749‐016Portugal
| | - Marta Sousa Silva
- Laboratório de FTICR e Espectrometria de Massa EstruturalFaculdade de Ciências da Universidade de LisboaLisbon 1749‐016Portugal
- Centro de Química e BioquímicaFaculdade de Ciências da Universidade de LisboaLisbon 1749‐016Portugal
| | - Andreia Figueiredo
- Biosystems & Integrative Sciences Institute (BioISI)Faculdade de Ciências da Universidade de LisboaLisbon 1749‐016Portugal
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135
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Kim JS, Yamaguchi-Shinozaki K, Shinozaki K. ER-Anchored Transcription Factors bZIP17 and bZIP28 Regulate Root Elongation. PLANT PHYSIOLOGY 2018; 176:2221-2230. [PMID: 29367234 PMCID: PMC5841724 DOI: 10.1104/pp.17.01414] [Citation(s) in RCA: 64] [Impact Index Per Article: 10.7] [Reference Citation Analysis] [Abstract] [MESH Headings] [Track Full Text] [Subscribe] [Scholar Register] [Received: 10/02/2017] [Accepted: 01/10/2018] [Indexed: 05/08/2023]
Abstract
The unfolded protein response (UPR) is a eukaryotic transcriptional regulatory network that is activated upon the accumulation of malformed proteins in the endoplasmic reticulum (ER). In Arabidopsis (Arabidopsis thaliana), three bZIP transcription factors modulate the UPR: bZIP17, bZIP28, and bZIP60. Although bZIP28 and bZIP60 have been relatively well studied, the physiological and transcriptional roles of bZIP17 remain largely unknown. Here, we generated a double knockout mutant of bZIP17 and bZIP28 to elucidate the function of bZIP17. The mutant plant exhibited multiple developmental defects, including markedly reduced root elongation and constantly overinduced bZIP60 activity, indicating the essential roles of bZIP17 and bZIP28 in plant development and UPR modulation. Extended analysis of the transcriptomes of three double knockout mutants of bZIP17, bZIP28, and bZIP60 revealed that bZIP28 and bZIP60 are the major activators of the canonical induced UPR. By contrast, bZIP17 functions with bZIP28 to mediate the noninducible expression of multiple genes involved in cell growth, particularly to sustain their expression under stress conditions. Our study reveals pivotal roles of bZIP17 in the plant UPR and vegetative development, with functional redundancy to bZIP28.
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Affiliation(s)
- June-Sik Kim
- Gene Discovery Research Group, RIKEN Center for Sustainable Resource Science, Tsukuba, Ibaraki 305-0074, Japan
| | - Kazuko Yamaguchi-Shinozaki
- Laboratory of Plant Molecular Physiology, Graduate School of Agricultural and Life Sciences, University of Tokyo, Bunkyo-ku, Tokyo 113-8657, Japan
| | - Kazuo Shinozaki
- Gene Discovery Research Group, RIKEN Center for Sustainable Resource Science, Tsukuba, Ibaraki 305-0074, Japan
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136
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Nawkar GM, Lee ES, Shelake RM, Park JH, Ryu SW, Kang CH, Lee SY. Activation of the Transducers of Unfolded Protein Response in Plants. FRONTIERS IN PLANT SCIENCE 2018; 9:214. [PMID: 29515614 DOI: 10.3389/fpls.2018.00214/full] [Citation(s) in RCA: 1] [Impact Index Per Article: 0.2] [Reference Citation Analysis] [Abstract] [Key Words] [Subscribe] [Scholar Register] [Received: 11/08/2017] [Accepted: 02/05/2018] [Indexed: 05/24/2023]
Abstract
Maintenance of homeostasis of the endoplasmic reticulum (ER) ensures the balance between loading of nascent proteins and their secretion. Certain developmental conditions or environmental stressors affect protein folding causing ER stress. The resultant ER stress is mitigated by upregulating a set of stress-responsive genes in the nucleus modulating the mechanism of the unfolded protein response (UPR). In plants, the UPR is mediated by two major pathways; by the proteolytic processing of bZIP17/28 and by the IRE1-mediated splicing of bZIP60 mRNA. Recent studies have shown the involvement of plant-specific NAC transcription factors in UPR regulation. The molecular mechanisms activating plant-UPR transducers are only recently being unveiled. This review focuses on important structural features involved in the activation of the UPR transducers like bZIP17/28/60, IRE1, BAG7, and NAC017/062/089/103. Also, we discuss the activation of the UPR pathways, including BAG7-bZIP28 and IRE1-bZIP60, in detail, together with the NAC-TFs, which adds a new paradigm to the plant UPR.
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Affiliation(s)
- Ganesh M Nawkar
- Division of Applied Life Sciences (BK21 Plus) and Plant Molecular Biology and Biotechnology Research Center (PMBBRC), Gyeongsang National University, Jinju, South Korea
| | - Eun Seon Lee
- Division of Applied Life Sciences (BK21 Plus) and Plant Molecular Biology and Biotechnology Research Center (PMBBRC), Gyeongsang National University, Jinju, South Korea
| | - Rahul M Shelake
- Division of Applied Life Sciences (BK21 Plus) and Plant Molecular Biology and Biotechnology Research Center (PMBBRC), Gyeongsang National University, Jinju, South Korea
| | - Joung Hun Park
- Division of Applied Life Sciences (BK21 Plus) and Plant Molecular Biology and Biotechnology Research Center (PMBBRC), Gyeongsang National University, Jinju, South Korea
| | - Seoung Woo Ryu
- Division of Applied Life Sciences (BK21 Plus) and Plant Molecular Biology and Biotechnology Research Center (PMBBRC), Gyeongsang National University, Jinju, South Korea
| | - Chang Ho Kang
- Division of Applied Life Sciences (BK21 Plus) and Plant Molecular Biology and Biotechnology Research Center (PMBBRC), Gyeongsang National University, Jinju, South Korea
| | - Sang Yeol Lee
- Division of Applied Life Sciences (BK21 Plus) and Plant Molecular Biology and Biotechnology Research Center (PMBBRC), Gyeongsang National University, Jinju, South Korea
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137
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Ruberti C, Lai Y, Brandizzi F. Recovery from temporary endoplasmic reticulum stress in plants relies on the tissue-specific and largely independent roles of bZIP28 and bZIP60, as well as an antagonizing function of BAX-Inhibitor 1 upon the pro-adaptive signaling mediated by bZIP28. THE PLANT JOURNAL : FOR CELL AND MOLECULAR BIOLOGY 2018; 93:155-165. [PMID: 29124827 PMCID: PMC5732024 DOI: 10.1111/tpj.13768] [Citation(s) in RCA: 33] [Impact Index Per Article: 5.5] [Reference Citation Analysis] [Abstract] [Key Words] [MESH Headings] [Grants] [Track Full Text] [Subscribe] [Scholar Register] [Received: 08/09/2017] [Revised: 09/23/2017] [Accepted: 10/30/2017] [Indexed: 05/20/2023]
Abstract
The unfolded protein response (UPR) is an ancient signaling pathway that commits to life-or-death outcomes in response to proteotoxic stress in the endoplasmic reticulum (ER). In plants, the membrane-tethered transcription factor bZIP28 and the ribonuclease-kinase IRE1 along with its splicing target, bZIP60, govern the two cytoprotective UPR signaling pathways known to date. The conserved ER membrane-associated BAX inhibitor 1 (BI1) modulates ER stress-induced programmed cell death through yet-unknown mechanisms. Despite the significance of the UPR for cell homeostasis, in plants the regulatory circuitry underlying ER stress resolution is still largely unmapped. To gain insights into the coordination of plant UPR strategies, we analyzed the functional relationship of the UPR modulators through the analysis of single and higher order mutants of IRE1, bZIP60, bZIP28 and BI1 in experimental conditions causing either temporary or chronic ER stress. We established a functional duality of bZIP28 and bZIP60, as they exert partially independent tissue-specific roles in recovery from ER stress, but redundantly actuate survival strategies in chronic ER stress. We also discovered that BI1 attenuates the pro-survival function of bZIP28 in ER stress resolution and, differently to animal cells, it does not temper the ribonuclease activity of inositol-requiring enzyme 1 (IRE1) under temporary ER stress. Together these findings reveal a functional independence of bZIP28 and bZIP60 in plant UPR, and identify an antagonizing role of BI1 in the pro-adaptive signaling mediated by bZIP28, bringing to light the distinctive complexity of the unfolded protein response (UPR) in plants.
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Affiliation(s)
| | | | - Federica Brandizzi
- Corresponding author: Dr. Federica Brandizzi, Michigan State University, MSU-Department of Energy, Plant Research Laboratory, 612 Wilson Road, East Lansing, MI, 48824, USA, , Phone: (517) 353-7872; Fax: (517) 353-9168
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138
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Nawkar GM, Lee ES, Shelake RM, Park JH, Ryu SW, Kang CH, Lee SY. Activation of the Transducers of Unfolded Protein Response in Plants. FRONTIERS IN PLANT SCIENCE 2018; 9:214. [PMID: 29515614 PMCID: PMC5826264 DOI: 10.3389/fpls.2018.00214] [Citation(s) in RCA: 21] [Impact Index Per Article: 3.5] [Reference Citation Analysis] [Abstract] [Key Words] [Track Full Text] [Subscribe] [Scholar Register] [Received: 11/08/2017] [Accepted: 02/05/2018] [Indexed: 05/19/2023]
Abstract
Maintenance of homeostasis of the endoplasmic reticulum (ER) ensures the balance between loading of nascent proteins and their secretion. Certain developmental conditions or environmental stressors affect protein folding causing ER stress. The resultant ER stress is mitigated by upregulating a set of stress-responsive genes in the nucleus modulating the mechanism of the unfolded protein response (UPR). In plants, the UPR is mediated by two major pathways; by the proteolytic processing of bZIP17/28 and by the IRE1-mediated splicing of bZIP60 mRNA. Recent studies have shown the involvement of plant-specific NAC transcription factors in UPR regulation. The molecular mechanisms activating plant-UPR transducers are only recently being unveiled. This review focuses on important structural features involved in the activation of the UPR transducers like bZIP17/28/60, IRE1, BAG7, and NAC017/062/089/103. Also, we discuss the activation of the UPR pathways, including BAG7-bZIP28 and IRE1-bZIP60, in detail, together with the NAC-TFs, which adds a new paradigm to the plant UPR.
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139
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Uzilday B, Ozgur R, Sekmen AH, Turkan I. Endoplasmic reticulum stress regulates glutathione metabolism and activities of glutathione related enzymes in Arabidopsis. FUNCTIONAL PLANT BIOLOGY : FPB 2018; 45:284-296. [PMID: 32291042 DOI: 10.1071/fp17151] [Citation(s) in RCA: 9] [Impact Index Per Article: 1.5] [Reference Citation Analysis] [Abstract] [Track Full Text] [Subscribe] [Scholar Register] [Received: 09/09/2016] [Accepted: 07/30/2017] [Indexed: 05/16/2023]
Abstract
Stress conditions generate an extra load on protein folding machinery in the endoplasmic reticulum (ER) and if the ER cannot overcome this load, unfolded proteins accumulate in the ER lumen, causing ER stress. ER lumen localised protein disulfide isomerase (PDI) catalyses the generation of disulfide bonds in conjugation with ER oxidoreductase1 (ERO1) during protein folding. Mismatched disulfide bonds are reduced by the conversion of GSH to GSSG. Under prolonged ER stress, GSH pool is oxidised and H2O2 is produced via increased activity of PDI-ERO1. However, it is not known how glutathione metabolism is regulated under ER stress in plants. So, in this study, ER stress was induced with tunicamycin (0.15, 0.3, 0.45μg mL-1 Tm) in Arabidopsis thaliana (L.) Heynh. Glutathione content was increased by ER stress, which was accompanied by induction of glutathione biosynthesis genes (GSH1, GSH2). Also, the apoplastic glutathione degradation pathway (GGT1) was induced. Further, the activities of glutathione reductase (GR), dehydroascorbate reductase (DHAR), glutathione peroxidase (GPX) and glutathione S-transferase (GST) were increased under ER stress. Results also showed that chloroplastic GPX genes were specifically downregulated with ER stress. This is the first report on regulation of glutathione metabolism and glutathione related enzymes in response to ER stress in plants.
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Affiliation(s)
- Baris Uzilday
- Department of Biology, Faculty of Science, Ege University, Bornova, 35100, Izmir, Turkey
| | - Rengin Ozgur
- Department of Biology, Faculty of Science, Ege University, Bornova, 35100, Izmir, Turkey
| | - A Hediye Sekmen
- Department of Biology, Faculty of Science, Ege University, Bornova, 35100, Izmir, Turkey
| | - Ismail Turkan
- Department of Biology, Faculty of Science, Ege University, Bornova, 35100, Izmir, Turkey
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140
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Yocgo RE, Geza E, Chimusa ER, Mazandu GK. A post-gene silencing bioinformatics protocol for plant-defence gene validation and underlying process identification: case study of the Arabidopsis thaliana NPR1. BMC PLANT BIOLOGY 2017; 17:218. [PMID: 29169324 PMCID: PMC5701366 DOI: 10.1186/s12870-017-1151-y] [Citation(s) in RCA: 2] [Impact Index Per Article: 0.3] [Reference Citation Analysis] [Abstract] [Key Words] [MESH Headings] [Track Full Text] [Figures] [Subscribe] [Scholar Register] [Received: 11/30/2016] [Accepted: 11/07/2017] [Indexed: 06/07/2023]
Abstract
BACKGROUND Advances in forward and reverse genetic techniques have enabled the discovery and identification of several plant defence genes based on quantifiable disease phenotypes in mutant populations. Existing models for testing the effect of gene inactivation or genes causing these phenotypes do not take into account eventual uncertainty of these datasets and potential noise inherent in the biological experiment used, which may mask downstream analysis and limit the use of these datasets. Moreover, elucidating biological mechanisms driving the induced disease resistance and influencing these observable disease phenotypes has never been systematically tackled, eliciting the need for an efficient model to characterize completely the gene target under consideration. RESULTS We developed a post-gene silencing bioinformatics (post-GSB) protocol which accounts for potential biases related to the disease phenotype datasets in assessing the contribution of the gene target to the plant defence response. The post-GSB protocol uses Gene Ontology semantic similarity and pathway dataset to generate enriched process regulatory network based on the functional degeneracy of the plant proteome to help understand the induced plant defence response. We applied this protocol to investigate the effect of the NPR1 gene silencing to changes in Arabidopsis thaliana plants following Pseudomonas syringae pathovar tomato strain DC3000 infection. Results indicated that the presence of a functionally active NPR1 reduced the plant's susceptibility to the infection, with about 99% of variability in Pseudomonas spore growth between npr1 mutant and wild-type samples. Moreover, the post-GSB protocol has revealed the coordinate action of target-associated genes and pathways through an enriched process regulatory network, summarizing the potential target-based induced disease resistance mechanism. CONCLUSIONS This protocol can improve the characterization of the gene target and, potentially, elucidate induced defence response by more effectively utilizing available phenotype information and plant proteome functional knowledge.
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Affiliation(s)
- Rosita E. Yocgo
- African Institute for Mathematical Sciences (AIMS), AIMS South Africa and AIMS Ghana, Cape Town, South Africa
- Biomathematics Division, Department of Mathematical Sciences, Stellenbosch University, Stellenbosch, South Africa
| | - Ephifania Geza
- African Institute for Mathematical Sciences (AIMS), AIMS South Africa and AIMS Ghana, Cape Town, South Africa
- Computational Biology Division, Department of Integrative Biomedical Sciences, Institute of Infectious Disease and Molecular Medicine, University of Cape Town, Medical School, Anzio Road, Observatory, Cape Town, 7925 South Africa
| | - Emile R. Chimusa
- Division of Human Genetics, Department of Pathology, Institute of Infectious Disease and Molecular Medicine, University of Cape Town, Medical School, Anzio Road, Observatory, Cape Town, 7925 South Africa
| | - Gaston K. Mazandu
- African Institute for Mathematical Sciences (AIMS), AIMS South Africa and AIMS Ghana, Cape Town, South Africa
- Biomathematics Division, Department of Mathematical Sciences, Stellenbosch University, Stellenbosch, South Africa
- Computational Biology Division, Department of Integrative Biomedical Sciences, Institute of Infectious Disease and Molecular Medicine, University of Cape Town, Medical School, Anzio Road, Observatory, Cape Town, 7925 South Africa
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141
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Bi C, Ma Y, Wang XF, Zhang DP. Overexpression of the transcription factor NF-YC9 confers abscisic acid hypersensitivity in Arabidopsis. PLANT MOLECULAR BIOLOGY 2017; 95:425-439. [PMID: 28924726 PMCID: PMC5688200 DOI: 10.1007/s11103-017-0661-1] [Citation(s) in RCA: 18] [Impact Index Per Article: 2.6] [Reference Citation Analysis] [Abstract] [Key Words] [MESH Headings] [Grants] [Track Full Text] [Subscribe] [Scholar Register] [Received: 05/24/2017] [Accepted: 09/13/2017] [Indexed: 05/19/2023]
Abstract
Nuclear factor Y (NF-Y) family proteins are involved in many developmental processes and responses to environmental cues in plants, but whether and how they regulate phytohormone abscisic acid (ABA) signaling need further studies. In the present study, we showed that over-expression of the NF-YC9 gene confers ABA hypersensitivity in both the early seedling growth and stomatal response, while down-regulation of NF-YC9 does not affect ABA response in these processes. We also showed that over-expression of the NF-YC9 gene confers salt and osmotic hypersensitivity in early seedling growth, which is likely to be directly associated with the ABA hypersensitivity. Further, we observed that NF-YC9 physically interacts with the ABA-responsive bZIP transcription factor ABA-INSENSITIVE5 (ABI5), and facilitates the function of ABI5 to bind and activate the promoter of a target gene EM6. Additionally, NF-YC9 up-regulates expression of the ABI5 gene in response to ABA. These findings show that NF-YC9 may be involved in ABA signaling as a positive regulator and likely functions redundantly together with other NF-YC members, and support the model that the NF-YC9 mediates ABA signaling via targeting to and aiding the ABA-responsive transcription factors such as ABI5.
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Affiliation(s)
- Chao Bi
- MOE Systems Biology and Bioinformatics Laboratory, Center for Plant Biology, School of Life Sciences, Tsinghua University, Beijing, 100084, China
| | - Yu Ma
- MOE Systems Biology and Bioinformatics Laboratory, Center for Plant Biology, School of Life Sciences, Tsinghua University, Beijing, 100084, China
| | - Xiao-Fang Wang
- MOE Systems Biology and Bioinformatics Laboratory, Center for Plant Biology, School of Life Sciences, Tsinghua University, Beijing, 100084, China
| | - Da-Peng Zhang
- MOE Systems Biology and Bioinformatics Laboratory, Center for Plant Biology, School of Life Sciences, Tsinghua University, Beijing, 100084, China.
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142
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Boulard C, Fatihi A, Lepiniec L, Dubreucq B. Regulation and evolution of the interaction of the seed B3 transcription factors with NF-Y subunits. BIOCHIMICA ET BIOPHYSICA ACTA-GENE REGULATORY MECHANISMS 2017; 1860:1069-1078. [PMID: 28866096 DOI: 10.1016/j.bbagrm.2017.08.008] [Citation(s) in RCA: 32] [Impact Index Per Article: 4.6] [Reference Citation Analysis] [Abstract] [Key Words] [Track Full Text] [Subscribe] [Scholar Register] [Received: 06/26/2017] [Revised: 08/28/2017] [Accepted: 08/28/2017] [Indexed: 12/14/2022]
Abstract
The LAFL genes (LEC2, ABI3, FUS3, LEC1) encode transcription factors that regulate different aspects of seed development, from early to late embryogenesis and accumulation of storage compounds. These transcription factors form a complex network, with members able to interact with various other players to control the switch between embryo development and seed maturation and, at a later stage in the plant life cycle, between the mature seed and germination. In this review, we first summarize our current understanding of the role of each member in the network in the light of recent advances regarding their regulation and structure/function relationships. In a second part, we discuss new insights concerning the evolution of the LAFL genes to address the more specific question of the conservation of LEAFY COTYLEDONS 2 in both dicots and monocots and the putative origin of the network. Last we examine the current major limitations to current knowledge and future prospects to improve our understanding of this regulatory network.
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Affiliation(s)
- C Boulard
- Institut Jean-Pierre Bourgin (IJPB), INRA, AgroParisTech, ERL-CNRS, Saclay Plant Sciences (SPS), Université Paris-Saclay, RD10, F-78026 Versailles, France
| | - A Fatihi
- Institut Jean-Pierre Bourgin (IJPB), INRA, AgroParisTech, ERL-CNRS, Saclay Plant Sciences (SPS), Université Paris-Saclay, RD10, F-78026 Versailles, France
| | - L Lepiniec
- Institut Jean-Pierre Bourgin (IJPB), INRA, AgroParisTech, ERL-CNRS, Saclay Plant Sciences (SPS), Université Paris-Saclay, RD10, F-78026 Versailles, France
| | - B Dubreucq
- Institut Jean-Pierre Bourgin (IJPB), INRA, AgroParisTech, ERL-CNRS, Saclay Plant Sciences (SPS), Université Paris-Saclay, RD10, F-78026 Versailles, France.
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143
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Pelletier JM, Kwong RW, Park S, Le BH, Baden R, Cagliari A, Hashimoto M, Munoz MD, Fischer RL, Goldberg RB, Harada JJ. LEC1 sequentially regulates the transcription of genes involved in diverse developmental processes during seed development. Proc Natl Acad Sci U S A 2017; 114:E6710-E6719. [PMID: 28739919 PMCID: PMC5559047 DOI: 10.1073/pnas.1707957114] [Citation(s) in RCA: 97] [Impact Index Per Article: 13.9] [Reference Citation Analysis] [Abstract] [Key Words] [MESH Headings] [Track Full Text] [Journal Information] [Subscribe] [Scholar Register] [Indexed: 11/18/2022] Open
Abstract
LEAFY COTYLEDON1 (LEC1), an atypical subunit of the nuclear transcription factor Y (NF-Y) CCAAT-binding transcription factor, is a central regulator that controls many aspects of seed development including the maturation phase during which seeds accumulate storage macromolecules and embryos acquire the ability to withstand desiccation. To define the gene networks and developmental processes controlled by LEC1, genes regulated directly by and downstream of LEC1 were identified. We compared the mRNA profiles of wild-type and lec1-null mutant seeds at several stages of development to define genes that are down-regulated or up-regulated by the lec1 mutation. We used ChIP and differential gene-expression analyses in Arabidopsis seedlings overexpressing LEC1 and in developing Arabidopsis and soybean seeds to identify globally the target genes that are transcriptionally regulated by LEC1 in planta Collectively, our results show that LEC1 controls distinct gene sets at different developmental stages, including those that mediate the temporal transition between photosynthesis and chloroplast biogenesis early in seed development and seed maturation late in development. Analyses of enriched DNA sequence motifs that may act as cis-regulatory elements in the promoters of LEC1 target genes suggest that LEC1 may interact with other transcription factors to regulate distinct gene sets at different stages of seed development. Moreover, our results demonstrate strong conservation in the developmental processes and gene networks regulated by LEC1 in two dicotyledonous plants that diverged ∼92 Mya.
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Affiliation(s)
- Julie M Pelletier
- Department of Plant Biology, University of California, Davis, CA 95616
| | - Raymond W Kwong
- Department of Plant Biology, University of California, Davis, CA 95616
| | - Soomin Park
- Department of Plant Biology, University of California, Davis, CA 95616
| | - Brandon H Le
- Department of Molecular, Cell, and Developmental Biology, University of California, Los Angeles, CA 90095
| | - Russell Baden
- Department of Plant Biology, University of California, Davis, CA 95616
| | | | - Meryl Hashimoto
- Department of Plant Biology, University of California, Davis, CA 95616
| | - Matthew D Munoz
- Department of Plant Biology, University of California, Davis, CA 95616
| | - Robert L Fischer
- Department of Plant and Microbial Biology, University of California, Berkeley, CA 94720
| | - Robert B Goldberg
- Department of Molecular, Cell, and Developmental Biology, University of California, Los Angeles, CA 90095;
| | - John J Harada
- Department of Plant Biology, University of California, Davis, CA 95616;
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144
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Iwata Y, Ashida M, Hasegawa C, Tabara K, Mishiba KI, Koizumi N. Activation of the Arabidopsis membrane-bound transcription factor bZIP28 is mediated by site-2 protease, but not site-1 protease. THE PLANT JOURNAL : FOR CELL AND MOLECULAR BIOLOGY 2017; 91:408-415. [PMID: 28407373 DOI: 10.1111/tpj.13572] [Citation(s) in RCA: 54] [Impact Index Per Article: 7.7] [Reference Citation Analysis] [Abstract] [Key Words] [MESH Headings] [Track Full Text] [Subscribe] [Scholar Register] [Received: 08/03/2016] [Revised: 03/30/2017] [Accepted: 04/10/2017] [Indexed: 05/03/2023]
Abstract
The unfolded protein response (UPR) is a homeostatic cellular response conserved in eukaryotic cells to alleviate the accumulation of unfolded proteins in the endoplasmic reticulum (ER). Arabidopsis bZIP28 is a membrane-bound transcription factor activated by proteolytic cleavage in response to ER stress, thereby releasing its cytosolic portion containing the bZIP domain from the membrane to translocate into the nucleus where it induces the transcription of genes encoding ER-resident molecular chaperones and folding enzymes. It has been widely recognized that the proteolytic activation of bZIP28 is mediated by the sequential cleavage of site-1 protease (S1P) and site-2 protease (S2P). In the present study we provide evidence that bZIP28 protein is cleaved by S2P, but not by S1P. We demonstrated that wild-type and s1p mutant plants produce the active, nuclear form of bZIP28 in response to the ER stress inducer tunicamycin. In contrast, tunicamycin-treated s2p mutants do not accumulate the active, nuclear form of bZIP28. Consistent with these observations, s2p mutants, but not s1p mutants, exhibited a defective transcriptional response of ER stress-responsive genes and significantly higher sensitivity to tunicamycin. Interestingly, s2p mutants accumulate two membrane-bound bZIP28 fragments with a shorter ER lumen-facing C-terminal domain. Importantly, the predicted cleavage sites are located far from the canonical S1P recognition motif previously described. We propose that ER stress-induced proteolytic activation of bZIP28 is mediated by the sequential actions of as-yet-unidentified protease(s) and S2P, and does not require S1P.
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Affiliation(s)
- Yuji Iwata
- Graduate School of Life and Environmental Sciences, Osaka Prefecture University, 1-1 Gakuen-cho, Naka-ku, Sakai, Osaka, 599-8531, Japan
| | - Makoto Ashida
- Graduate School of Life and Environmental Sciences, Osaka Prefecture University, 1-1 Gakuen-cho, Naka-ku, Sakai, Osaka, 599-8531, Japan
| | - Chisa Hasegawa
- Graduate School of Life and Environmental Sciences, Osaka Prefecture University, 1-1 Gakuen-cho, Naka-ku, Sakai, Osaka, 599-8531, Japan
| | - Kazuki Tabara
- Graduate School of Life and Environmental Sciences, Osaka Prefecture University, 1-1 Gakuen-cho, Naka-ku, Sakai, Osaka, 599-8531, Japan
| | - Kei-Ichiro Mishiba
- Graduate School of Life and Environmental Sciences, Osaka Prefecture University, 1-1 Gakuen-cho, Naka-ku, Sakai, Osaka, 599-8531, Japan
| | - Nozomu Koizumi
- Graduate School of Life and Environmental Sciences, Osaka Prefecture University, 1-1 Gakuen-cho, Naka-ku, Sakai, Osaka, 599-8531, Japan
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145
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Fernández-Bautista N, Fernández-Calvino L, Muñoz A, Castellano MM. HOP3, a member of the HOP family in Arabidopsis, interacts with BiP and plays a major role in the ER stress response. PLANT, CELL & ENVIRONMENT 2017; 40:1341-1355. [PMID: 28155228 DOI: 10.1111/pce.12927] [Citation(s) in RCA: 14] [Impact Index Per Article: 2.0] [Reference Citation Analysis] [Abstract] [Key Words] [MESH Headings] [Track Full Text] [Subscribe] [Scholar Register] [Received: 10/18/2016] [Accepted: 01/15/2017] [Indexed: 05/18/2023]
Abstract
HSP70-HSP90 organizing protein (HOP) is a well-studied family of cytosolic cochaperones. However, the possible role of HOP during the endoplasmic reticulum (ER) stress response and the identity of its interactors within the ER were not previously addressed in any eukaryote. We have demonstrated that Arabidopsis HOP3, whose function was not studied before, interacts in vivo with cytosolic HSP90 and HSP70, and, unexpectedly, with binding immunoglobulin protein (BiP), a HSP70 ER-resident protein. Although BiP lacks the domain described in other eukaryotes for HOP-HSP70 binding, it interacts with HOP3 through a non-canonical association to its nucleotide binding domain. Consistent with this interaction with BiP, HOP3 is partially localized at the ER. Moreover, HOP3 is induced both at transcript and protein levels by unfolded protein response (UPR) inducer agents by a mechanism dependent on inositol-requiring enzyme 1 (IRE1). Importantly, hop3 loss-of-function mutants show a reduction in pollen germination and a hypersensitive phenotype in the presence of ER stress inducer agents, a phenotype that is reverted by the addition of the chemical chaperone tauroursodeoxycholic acid (TUDCA). All these data demonstrate, for the first time in any eukaryote, a main role of HOP as an important regulator of the ER stress response, a process intimately linked in plants to important specific developmental programs and to environmental stress sensing and response.
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Affiliation(s)
- Nuria Fernández-Bautista
- Centro de Biotecnología y Genómica de Plantas, Universidad Politécnica de Madrid (UPM) - Instituto Nacional de Investigación y Tecnología Agraria y Alimentaria (INIA), Campus Montegancedo UPM, 28223, Pozuelo de Alarcón, Madrid, Spain
| | - Lourdes Fernández-Calvino
- Centro de Biotecnología y Genómica de Plantas, Universidad Politécnica de Madrid (UPM) - Instituto Nacional de Investigación y Tecnología Agraria y Alimentaria (INIA), Campus Montegancedo UPM, 28223, Pozuelo de Alarcón, Madrid, Spain
| | - Alfonso Muñoz
- Centro de Biotecnología y Genómica de Plantas, Universidad Politécnica de Madrid (UPM) - Instituto Nacional de Investigación y Tecnología Agraria y Alimentaria (INIA), Campus Montegancedo UPM, 28223, Pozuelo de Alarcón, Madrid, Spain
| | - M Mar Castellano
- Centro de Biotecnología y Genómica de Plantas, Universidad Politécnica de Madrid (UPM) - Instituto Nacional de Investigación y Tecnología Agraria y Alimentaria (INIA), Campus Montegancedo UPM, 28223, Pozuelo de Alarcón, Madrid, Spain
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146
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Kim SJ, Zemelis-Durfee S, Wilkerson C, Brandizzi F. In Brachypodium a complex signaling is actuated to protect cells from proteotoxic stress and facilitate seed filling. PLANTA 2017; 246:75-89. [PMID: 28364133 PMCID: PMC5892453 DOI: 10.1007/s00425-017-2687-7] [Citation(s) in RCA: 0] [Impact Index Per Article: 0] [Reference Citation Analysis] [Abstract] [Key Words] [MESH Headings] [Grants] [Track Full Text] [Subscribe] [Scholar Register] [Received: 02/07/2017] [Accepted: 03/27/2017] [Indexed: 05/11/2023]
Abstract
A conserved UPR machinery is required for Brachypodium ER stress resistance and grain filling. Human and livestock diets depend on the accumulation of cereal storage proteins and carbohydrates, including mixed-linkage glucan (MLG), in the endosperm during seed development. Storage proteins and proteins responsible for the production of carbohydrates are synthesized in the endoplasmic reticulum (ER). Unfavorable conditions during growth that hamper the ER biosynthetic capacity, such as heat, can cause a potentially lethal condition known as ER stress, which activates the unfolded protein response (UPR), a signaling response designed to mitigate ER stress. The UPR relies primarily on a conserved ER-associated kinase and ribonuclease, IRE1, which splices the mRNA of a transcription factor (TF), such as bZIP60 in plants, to produce an active TF that controls the expression of ER resident chaperones. Here, we investigated activation of the UPR in Brachypodium, as a model to study the UPR in seeds of a monocotyledon species, as well as the consequences of heat stress on MLG deposition in seeds. We identified a Brachypodium bZIP60 orthologue and determined a positive correlation between bZIP60 splicing and ER stress induced by chemicals and heat. Each stress condition led to transcriptional modulation of several BiP genes, supporting the existence of condition-specific BiP regulation. Finally, we found that the UPR is elevated at the early stage of seed development and that MLG production is negatively affected by heat stress via modulation of MLG synthase accumulation. We propose that successful accomplishment of seed filling is strongly correlated with the ability of the plant to sustain ER stress via the UPR.
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Affiliation(s)
- Sang-Jin Kim
- Great Lakes Bioenergy Research Center, Michigan State University, East Lansing, MI, 48824, USA
| | - Starla Zemelis-Durfee
- Great Lakes Bioenergy Research Center, Michigan State University, East Lansing, MI, 48824, USA
| | - Curtis Wilkerson
- Great Lakes Bioenergy Research Center, Michigan State University, East Lansing, MI, 48824, USA
- Department of Plant Biology, Michigan State University, East Lansing, MI, 48824, USA
| | - Federica Brandizzi
- Great Lakes Bioenergy Research Center, Michigan State University, East Lansing, MI, 48824, USA.
- MSU-DOE Plant Research Lab, Michigan State University, East Lansing, MI, 48824, USA.
- Department of Plant Biology, Michigan State University, East Lansing, MI, 48824, USA.
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147
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Howell SH. When is the unfolded protein response not the unfolded protein response? PLANT SCIENCE : AN INTERNATIONAL JOURNAL OF EXPERIMENTAL PLANT BIOLOGY 2017; 260:139-143. [PMID: 28554471 DOI: 10.1016/j.plantsci.2017.03.014] [Citation(s) in RCA: 13] [Impact Index Per Article: 1.9] [Reference Citation Analysis] [Abstract] [Key Words] [MESH Headings] [Track Full Text] [Subscribe] [Scholar Register] [Received: 01/12/2017] [Revised: 03/08/2017] [Accepted: 03/18/2017] [Indexed: 05/23/2023]
Abstract
As sessile organisms, plants are subjected to variety of stresses for which they have evolved different protection mechanisms. One mechanism involves endoplasmic reticulum (ER) stress in which the process of protein folding is disturbed and misfolded proteins accumulate in the ER. ER stress elicits the unfolded protein response (UPR) whereby the stress conditions in the ER are communicated to the nucleus to regulate stress response genes. Since the UPR is one of a number of different mechanisms by which plants respond to stress, it is often difficult to distinguish the UPR from other stress responses. Many investigators have relied on the molecular signature of the UPR, the upregulation of UPR genes to implicate the UPR in response to various stresses. However, some of these genes are activated by other stresses making it problematic to know whether the UPR is truly activated in response to a given stress or is part of a complex response. Another challenge is to understand how plants actually perceive different stress conditions. Are all stress conditions that elicit the UPR response caused by an accumulation of misfolded proteins in the ER? Is this the case for salt stress, which induces the UPR? How about biotic stresses, such as bacterial or viral infections? Do they lead to the accumulation of misfolded proteins in the ER or are there other means by which they induce the UPR?
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Affiliation(s)
- Stephen H Howell
- Plant Sciences Institute and Department of Genetics, Development and Cell Biology, Iowa State University, Ames, IA 50011, USA.
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148
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Li Q, Wei H, Liu L, Yang X, Zhang X, Xie Q. Unfolded protein response activation compensates endoplasmic reticulum-associated degradation deficiency in Arabidopsis. JOURNAL OF INTEGRATIVE PLANT BIOLOGY 2017; 59:506-521. [PMID: 28418178 DOI: 10.1111/jipb.12544] [Citation(s) in RCA: 6] [Impact Index Per Article: 0.9] [Reference Citation Analysis] [Abstract] [MESH Headings] [Track Full Text] [Subscribe] [Scholar Register] [Received: 02/17/2017] [Accepted: 04/10/2017] [Indexed: 05/16/2023]
Abstract
Abiotic stresses often disrupt protein folding and induce endoplasmic reticulum (ER) stress. There is a sophisticated ER quality control (ERQC) system to mitigate the effects of malfunctioning proteins and maintain ER homeostasis. The accumulation of misfolded proteins in the ER activates the unfolded protein response (UPR) to enhance ER protein folding and the degradation of misfolded proteins mediate by ER-associated degradation (ERAD). That ERQC reduces abiotic stress damage has been well studied in mammals and yeast. However, in plants, both ERAD and UPR have been studied separately and found to be critical for plant abiotic stress tolerance. In this study, we discovered that UPR-associated transcription factors AtbZIP17, AtbZIP28 and AtbZIP60 responded to tunicamycin (TM) and NaCl induced ER stress and subsequently enhanced Arabidopsis thaliana abiotic stress tolerance. They regulated the expression level of ER chaperones and the HRD1-complex components. Moreover, overexpression of AtbZIP17, AtbZIP28 and AtbZIP60 could restore stress tolerance via ERAD in the HRD1-complex mutant hrd3a-2, which suggested that UPR and ERAD have an interactive mechanism in Arabidopsis.
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Affiliation(s)
- Qingliang Li
- State Key Laboratory of Plant Genomics, National Center for Plant Gene Research, Institute of Genetics and Developmental Biology, Chinese Academy of Sciences, Beijing 100101, China
| | - Hai Wei
- State Key Laboratory of Plant Genomics, National Center for Plant Gene Research, Institute of Genetics and Developmental Biology, Chinese Academy of Sciences, Beijing 100101, China
- State Key Laboratory of Crop Biology, Shandong Key Laboratory of Crop Biology, College of Life Sciences, Shandong Agricultural University, Taian 271018, China
| | - Lijing Liu
- State Key Laboratory of Plant Genomics, National Center for Plant Gene Research, Institute of Genetics and Developmental Biology, Chinese Academy of Sciences, Beijing 100101, China
| | - Xiaoyuan Yang
- State Key Laboratory of Plant Genomics, National Center for Plant Gene Research, Institute of Genetics and Developmental Biology, Chinese Academy of Sciences, Beijing 100101, China
| | - Xiansheng Zhang
- State Key Laboratory of Crop Biology, Shandong Key Laboratory of Crop Biology, College of Life Sciences, Shandong Agricultural University, Taian 271018, China
| | - Qi Xie
- State Key Laboratory of Plant Genomics, National Center for Plant Gene Research, Institute of Genetics and Developmental Biology, Chinese Academy of Sciences, Beijing 100101, China
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149
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Yamamoto YY, Ichida H, Hieno A, Obata D, Tokizawa M, Nomoto M, Tada Y, Kusunoki K, Koyama H, Hayami N. Prediction of bipartite transcriptional regulatory elements using transcriptome data of Arabidopsis. DNA Res 2017; 24:271-278. [PMID: 28158431 PMCID: PMC5499772 DOI: 10.1093/dnares/dsw065] [Citation(s) in RCA: 2] [Impact Index Per Article: 0.3] [Reference Citation Analysis] [Abstract] [Key Words] [Track Full Text] [Download PDF] [Figures] [Journal Information] [Subscribe] [Scholar Register] [Received: 09/09/2016] [Accepted: 12/27/2016] [Indexed: 11/14/2022] Open
Abstract
In our previous study, a methodology was established to predict transcriptional regulatory elements in promoter sequences using transcriptome data based on a frequency comparison of octamers. Some transcription factors, including the NAC family, cannot be covered by this method because their binding sequences have non-specific spacers in the middle of the two binding sites. In order to remove this blind spot in promoter prediction, we have extended our analysis by including bipartite octamers that are composed of ‘4 bases—a spacer with a flexible length—4 bases’. 8,044 pre-selected bipartite octamers, which had an overrepresentation of specific spacer lengths in promoter sequences and sequences related to core elements removed, were subjected to frequency comparison analysis. Prediction of ER stress-responsive elements in the BiP/BiPL promoter and an ANAC017 target sequence resulted in precise detection of true positives, judged by functional analyses of a reported article and our own in vitro protein–DNA binding assays. These results demonstrate that incorporation of bipartite octamers with continuous ones improves promoter prediction significantly.
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Affiliation(s)
- Yoshiharu Y Yamamoto
- Faculty of Applied Biological Sciences, Gifu University, 1-1 Yanagido, Gifu City, Gifu 501-1193, Japan.,United Graduate School of Agricultural Science, Gifu University, Yanagido 1-1, Gifu City, Gifu 501-1193, Japan.,RIKEN CSRS, 1-7-22 Suehiro-cho, Tsurumi-ku, Yokohama 230-0045, Japan.,JST ALCA
| | - Hiroyuki Ichida
- RIKEN Nishina Center, 2-1 Hirosawa, Wako, Saitama 351-0198, Japan
| | - Ayaka Hieno
- United Graduate School of Agricultural Science, Gifu University, Yanagido 1-1, Gifu City, Gifu 501-1193, Japan
| | - Daichi Obata
- Faculty of Applied Biological Sciences, Gifu University, 1-1 Yanagido, Gifu City, Gifu 501-1193, Japan
| | - Mutsutomo Tokizawa
- United Graduate School of Agricultural Science, Gifu University, Yanagido 1-1, Gifu City, Gifu 501-1193, Japan
| | - Mika Nomoto
- Center for Gene Research, Nagoya University, Furo-cho, Chikusa, Nagoya 464-8602, Japan
| | - Yasuomi Tada
- Center for Gene Research, Nagoya University, Furo-cho, Chikusa, Nagoya 464-8602, Japan
| | - Kazutaka Kusunoki
- United Graduate School of Agricultural Science, Gifu University, Yanagido 1-1, Gifu City, Gifu 501-1193, Japan
| | - Hiroyuki Koyama
- Faculty of Applied Biological Sciences, Gifu University, 1-1 Yanagido, Gifu City, Gifu 501-1193, Japan.,United Graduate School of Agricultural Science, Gifu University, Yanagido 1-1, Gifu City, Gifu 501-1193, Japan
| | - Natsuki Hayami
- United Graduate School of Agricultural Science, Gifu University, Yanagido 1-1, Gifu City, Gifu 501-1193, Japan
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150
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Zhang L, Xin Z, Yu X, Ma C, Liang W, Zhu M, Cheng Q, Li Z, Niu Y, Ren Y, Wang Z, Lin T. Osmotic Stress Induced Cell Death in Wheat Is Alleviated by Tauroursodeoxycholic Acid and Involves Endoplasmic Reticulum Stress-Related Gene Expression. FRONTIERS IN PLANT SCIENCE 2017; 8:667. [PMID: 28515732 PMCID: PMC5413500 DOI: 10.3389/fpls.2017.00667] [Citation(s) in RCA: 6] [Impact Index Per Article: 0.9] [Reference Citation Analysis] [Abstract] [Key Words] [Track Full Text] [Subscribe] [Scholar Register] [Received: 11/06/2016] [Accepted: 04/11/2017] [Indexed: 05/23/2023]
Abstract
Although, tauroursodeoxycholic acid (TUDCA) has been widely studied in mammalian cells because of its role in inhibiting apoptosis, its effects on plants remain almost unknown, especially in the case of crops such as wheat. In this study, we conducted a series of experiments to explore the effects and mechanisms of action of TUDCA on wheat growth and cell death induced by osmotic stress. Our results show that TUDCA: (1) ameliorates the impact of osmotic stress on wheat height, fresh weight, and water content; (2) alleviates the decrease in chlorophyll content as well as membrane damage caused by osmotic stress; (3) decreases the accumulation of reactive oxygen species (ROS) by increasing the activity of antioxidant enzymes under osmotic stress; and (4) to some extent alleviates osmotic stress-induced cell death probably by regulating endoplasmic reticulum (ER) stress-related gene expression, for example expression of the basic leucine zipper genes bZIP60B and bZIP60D, the binding proteins BiP1 and BiP2, the protein disulfide isomerase PDIL8-1, and the glucose-regulated protein GRP94. We also propose a model that illustrates how TUDCA alleviates osmotic stress-related wheat cell death, which provides an important theoretical basis for improving plant stress adaptation and elucidates the mechanisms of ER stress-related plant osmotic stress resistance.
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Affiliation(s)
- Liting Zhang
- College of Agronomy, Henan Agricultural UniversityZhengzhou, China
- Collaborative Innovation Center of Henan Grain CropsZhengzhou, China
- National Key Laboratory of Wheat and Maize Crop ScienceZhengzhou, China
| | - Zeyu Xin
- College of Agronomy, Henan Agricultural UniversityZhengzhou, China
- Collaborative Innovation Center of Henan Grain CropsZhengzhou, China
- National Key Laboratory of Wheat and Maize Crop ScienceZhengzhou, China
| | - Xing Yu
- College of Agronomy, Henan Agricultural UniversityZhengzhou, China
- Collaborative Innovation Center of Henan Grain CropsZhengzhou, China
- National Key Laboratory of Wheat and Maize Crop ScienceZhengzhou, China
| | - Chao Ma
- College of Agronomy, Henan University of Science and TechnologyLuoyang, China
| | - Weiwei Liang
- College of Agronomy, Henan Agricultural UniversityZhengzhou, China
- Collaborative Innovation Center of Henan Grain CropsZhengzhou, China
- National Key Laboratory of Wheat and Maize Crop ScienceZhengzhou, China
| | - Meichen Zhu
- College of Agronomy, Henan Agricultural UniversityZhengzhou, China
- Collaborative Innovation Center of Henan Grain CropsZhengzhou, China
- National Key Laboratory of Wheat and Maize Crop ScienceZhengzhou, China
| | - Qiwei Cheng
- College of Agronomy, Henan Agricultural UniversityZhengzhou, China
- Collaborative Innovation Center of Henan Grain CropsZhengzhou, China
- National Key Laboratory of Wheat and Maize Crop ScienceZhengzhou, China
| | - Zongzhen Li
- College of Agronomy, Henan Agricultural UniversityZhengzhou, China
- Collaborative Innovation Center of Henan Grain CropsZhengzhou, China
- National Key Laboratory of Wheat and Maize Crop ScienceZhengzhou, China
| | - Yanan Niu
- College of Agronomy, Henan Agricultural UniversityZhengzhou, China
| | - Yongzhe Ren
- College of Agronomy, Henan Agricultural UniversityZhengzhou, China
- Collaborative Innovation Center of Henan Grain CropsZhengzhou, China
- National Key Laboratory of Wheat and Maize Crop ScienceZhengzhou, China
| | - Zhiqiang Wang
- College of Agronomy, Henan Agricultural UniversityZhengzhou, China
- Collaborative Innovation Center of Henan Grain CropsZhengzhou, China
- National Key Laboratory of Wheat and Maize Crop ScienceZhengzhou, China
| | - Tongbao Lin
- College of Agronomy, Henan Agricultural UniversityZhengzhou, China
- Collaborative Innovation Center of Henan Grain CropsZhengzhou, China
- National Key Laboratory of Wheat and Maize Crop ScienceZhengzhou, China
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