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Suhorukova AV, Sobolev DS, Milovskaya IG, Fadeev VS, Goldenkova-Pavlova IV, Tyurin AA. A Molecular Orchestration of Plant Translation under Abiotic Stress. Cells 2023; 12:2445. [PMID: 37887289 PMCID: PMC10605726 DOI: 10.3390/cells12202445] [Citation(s) in RCA: 0] [Impact Index Per Article: 0] [Reference Citation Analysis] [Abstract] [Key Words] [MESH Headings] [Track Full Text] [Journal Information] [Subscribe] [Scholar Register] [Received: 07/20/2023] [Revised: 09/12/2023] [Accepted: 09/26/2023] [Indexed: 10/28/2023] Open
Abstract
The complexities of translational strategies make this stage of implementing genetic information one of the most challenging to comprehend and, simultaneously, perhaps the most engaging. It is evident that this diverse range of strategies results not only from a long evolutionary history, but is also of paramount importance for refining gene expression and metabolic modulation. This notion is particularly accurate for organisms that predominantly exhibit biochemical and physiological reactions with a lack of behavioural ones. Plants are a group of organisms that exhibit such features. Addressing unfavourable environmental conditions plays a pivotal role in plant physiology. This is particularly evident with the changing conditions of global warming and the irrevocable loss or depletion of natural ecosystems. In conceptual terms, the plant response to abiotic stress comprises a set of elaborate and intricate strategies. This is influenced by a range of abiotic factors that cause stressful conditions, and molecular genetic mechanisms that fine-tune metabolic pathways allowing the plant organism to overcome non-standard and non-optimal conditions. This review aims to focus on the current state of the art in the field of translational regulation in plants under abiotic stress conditions. Different regulatory elements and patterns are being assessed chronologically. We deem it important to focus on significant high-performance techniques for studying the genetic information dynamics during the translation phase.
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Yang M, Ismayil A, Gao T, Ye Z, Yue N, Wu J, Zheng X, Li Y, Wang Y, Hong Y, Liu Y. Cotton leaf curl Multan virus C4 protein suppresses autophagy to facilitate viral infection. PLANT PHYSIOLOGY 2023; 193:708-720. [PMID: 37073495 DOI: 10.1093/plphys/kiad235] [Citation(s) in RCA: 6] [Impact Index Per Article: 6.0] [Reference Citation Analysis] [Abstract] [MESH Headings] [Track Full Text] [Subscribe] [Scholar Register] [Received: 12/15/2022] [Revised: 03/10/2023] [Accepted: 03/24/2023] [Indexed: 05/03/2023]
Abstract
Autophagy plays an important role in plant antiviral defense. Several plant viruses are reported to encode viral suppressor of autophagy (VSA) to prevent autophagy for effective virus infection. However, whether and how other viruses, in particular DNA viruses, also encode VSAs to affect viral infection in plants is unknown. Here, we report that the C4 protein encoded by Cotton leaf curl Multan geminivirus (CLCuMuV) inhibits autophagy by binding to the autophagy negative regulator eukaryotic translation initiation factor 4A (eIF4A) to enhance the eIF4A-Autophagy-related protein 5 (ATG5) interaction. By contrast, the R54A or R54K mutation in C4 abolishes its capacity to interact with eIF4A, and neither C4R54A nor C4R54K can suppress autophagy. However, the R54 residue is not essential for C4 to interfere with transcriptional gene silencing or post-transcriptional gene silencing. Moreover, plants infected with mutated CLCuMuV-C4R54K develop less severe symptoms with decreased levels of viral DNA. These findings reveal a molecular mechanism underlying how the DNA virus CLCuMuV deploys a VSA to subdue host cellular antiviral autophagy defense and uphold viral infection in plants.
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Affiliation(s)
- Meng Yang
- MOE Key Laboratory of Bioinformatics, Center for Plant Biology, School of Life Sciences, Tsinghua University, Beijing 100084, China
- Tsinghua-Peking Center for Life Sciences, Beijing 100084, China
| | - Asigul Ismayil
- MOE Key Laboratory of Bioinformatics, Center for Plant Biology, School of Life Sciences, Tsinghua University, Beijing 100084, China
- Tsinghua-Peking Center for Life Sciences, Beijing 100084, China
| | - Teng Gao
- MOE Key Laboratory of Bioinformatics, Center for Plant Biology, School of Life Sciences, Tsinghua University, Beijing 100084, China
- Tsinghua-Peking Center for Life Sciences, Beijing 100084, China
- Beijing Advanced Innovation Center for Structural Biology, Beijing 100084, China
| | - Zihan Ye
- MOE Key Laboratory of Bioinformatics, Center for Plant Biology, School of Life Sciences, Tsinghua University, Beijing 100084, China
- Tsinghua-Peking Center for Life Sciences, Beijing 100084, China
| | - Ning Yue
- MOE Key Laboratory of Bioinformatics, Center for Plant Biology, School of Life Sciences, Tsinghua University, Beijing 100084, China
- Tsinghua-Peking Center for Life Sciences, Beijing 100084, China
| | - Jie Wu
- MOE Key Laboratory of Bioinformatics, Center for Plant Biology, School of Life Sciences, Tsinghua University, Beijing 100084, China
- Tsinghua-Peking Center for Life Sciences, Beijing 100084, China
| | - Xiyin Zheng
- MOE Key Laboratory of Bioinformatics, Center for Plant Biology, School of Life Sciences, Tsinghua University, Beijing 100084, China
- Tsinghua-Peking Center for Life Sciences, Beijing 100084, China
| | - Yiqing Li
- MOE Key Laboratory of Bioinformatics, Center for Plant Biology, School of Life Sciences, Tsinghua University, Beijing 100084, China
- Tsinghua-Peking Center for Life Sciences, Beijing 100084, China
| | - Yan Wang
- MOE Key Laboratory of Bioinformatics, Center for Plant Biology, School of Life Sciences, Tsinghua University, Beijing 100084, China
- Tsinghua-Peking Center for Life Sciences, Beijing 100084, China
| | - Yiguo Hong
- Research Centre for Plant RNA Signaling, College of Life and Environmental Sciences, Hangzhou Normal University, Hangzhou 310036, China
- Warwick-Hangzhou RNA Signaling Joint Laboratory, School of Life Sciences, University of Warwick, Coventry CV4 7AL, UK
| | - Yule Liu
- MOE Key Laboratory of Bioinformatics, Center for Plant Biology, School of Life Sciences, Tsinghua University, Beijing 100084, China
- Tsinghua-Peking Center for Life Sciences, Beijing 100084, China
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3
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Niedziela A, Domżalska L, Dynkowska WM, Pernisová M, Rybka K. Aluminum Stress Induces Irreversible Proteomic Changes in the Roots of the Sensitive but Not the Tolerant Genotype of Triticale Seedlings. PLANTS 2022; 11:plants11020165. [PMID: 35050053 PMCID: PMC8781804 DOI: 10.3390/plants11020165] [Citation(s) in RCA: 0] [Impact Index Per Article: 0] [Reference Citation Analysis] [Abstract] [Track Full Text] [Download PDF] [Figures] [Subscribe] [Scholar Register] [Received: 11/18/2021] [Revised: 01/04/2022] [Accepted: 01/05/2022] [Indexed: 11/16/2022]
Abstract
Triticale is a wheat–rye hybrid with a higher abiotic stress tolerance than wheat and is better adapted for cultivation in light-type soils, where aluminum ions are present as Al-complexes that are harmful to plants. The roots are the first plant organs to contact these ions and the inhibition of root growth is one of the first plant reactions. The proteomes of the root apices in Al-tolerant and -sensitive plants were investigated to compare their regeneration effects following stress. The materials used in this study consisted of seedlings of three triticale lines differing in Al3+ tolerance, first subjected to aluminum ion stress and then recovered. Two-dimensional electrophoresis (2-DE) was used for seedling root protein separation followed by differential spot analysis using liquid chromatography coupled to tandem mass spectrometry (LC-MS-MS/MS). The plants’ tolerance to the stress was evaluated based on biometric screening of seedling root regrowth upon regeneration. Our results suggest that the Al-tolerant genotype can recover, without differentiation of proteome profiles, after stress relief, contrary to Al-sensitive genotypes that maintain the proteome modifications caused by unfavorable environments.
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Affiliation(s)
- Agnieszka Niedziela
- Department of Biochemistry and Biotechnology, Plant Breeding and Acclimatization Institute-National Research Institute in Radzików, 05-870 Blonie, Poland;
- Correspondence: (A.N.); (K.R.); Tel.: +48-227-334-535 (A.N.); +48-227-334-537 (K.R.)
| | - Lucyna Domżalska
- Center for Biological Diversity Conservation in Powsin, Polish Academy of Sciences Botanical Garden, Prawdziwka 2, 02-973 Warsaw, Poland;
| | - Wioletta M. Dynkowska
- Department of Biochemistry and Biotechnology, Plant Breeding and Acclimatization Institute-National Research Institute in Radzików, 05-870 Blonie, Poland;
| | - Markéta Pernisová
- Plant Sciences Core Facility, Mendel Centre for Plant Genomics and Proteomics, Central European Institute of Technology (CEITEC), Masaryk University, Kamenice 5, 62500 Brno, Czech Republic;
- Laboratory of Functional Genomics and Proteomics, National Centre for Biomolecular Research, Faculty of Science, Masaryk University, Kamenice 5, 62500 Brno, Czech Republic
| | - Krystyna Rybka
- Department of Biochemistry and Biotechnology, Plant Breeding and Acclimatization Institute-National Research Institute in Radzików, 05-870 Blonie, Poland;
- Correspondence: (A.N.); (K.R.); Tel.: +48-227-334-535 (A.N.); +48-227-334-537 (K.R.)
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4
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Singha DL, Maharana J, Panda D, Dehury B, Modi MK, Singh S. Understanding the thermal response of rice eukaryotic transcription factor eIF4A1 towards dynamic temperature stress: insights from expression profiling and molecular dynamics simulation. J Biomol Struct Dyn 2020; 39:2575-2584. [PMID: 32367760 DOI: 10.1080/07391102.2020.1751295] [Citation(s) in RCA: 4] [Impact Index Per Article: 1.0] [Reference Citation Analysis] [Abstract] [Key Words] [Track Full Text] [Journal Information] [Subscribe] [Scholar Register] [Indexed: 10/24/2022]
Abstract
Eukaryotic translation initiation factors (eIFs) are the group of regulatory proteins that are involved in the initiation of translation events. Among them, eIF4A1, a member of the DEAD-box RNA helicase family, participates in a wide spectrum of activities which include, RNA splicing, ribosome biogenesis, and RNA degradation. It is well known that ATP-binding and subsequent hydrolysis activities are crucial for the functionality of such helicases. Although the stress-responsive upregulation of eIF4A1 has been reported in plants during stress, it is difficult to anticipate the functionality of the corresponding protein product. Therefore, to understand the activity of eIF4A1 in rice in response to temperature stress, we first conducted an expression analysis of the gene and further investigated the structural stability of the eIF4A1-ATP/Mg2+ complex through molecular dynamics (MD) simulations at different temperature conditions (277 K, 300 K, and 315 K). Our results demonstrated a three to fourfold increased expression of rice eIF4A1 both in root and shoot at 42 °C compared to control. Furthermore, the MD simulation portrayed strong ATP/Mg2+ binding at a higher temperature in comparison to control and cold temperature. Overall, the increased expression pattern of eIF4A1 and strong ATP/Mg2+ binding at higher temperature indicated the heat stress-tolerant capacity of the gene in rice. The results from our study will help in understanding the activity of gene and guide the researchers for screening of novel stress inducible candidate genes for the engineering of temperature stress tolerant plants.Communicated by Ramaswamy H. Sarma.
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Affiliation(s)
- Dhanawantari L Singha
- Department of Agricultural Biotechnology, Assam Agricultural University, Jorhat, Assam, India
| | - Jitendra Maharana
- Distributed Information Centre (DIC), Department of Agricultural Biotechnology, Assam Agricultural University, Jorhat, Assam, India
| | - Debashis Panda
- Distributed Information Centre (DIC), Department of Agricultural Biotechnology, Assam Agricultural University, Jorhat, Assam, India
| | - Budheswar Dehury
- Department of Biochemistry, University of Cambridge, Cambridge, UK.,Department of Chemistry, Technical University of Denmark, Kgs. Lyngby, Denmark
| | - Mahendra Kumar Modi
- Department of Agricultural Biotechnology, Assam Agricultural University, Jorhat, Assam, India.,Distributed Information Centre (DIC), Department of Agricultural Biotechnology, Assam Agricultural University, Jorhat, Assam, India
| | - Salvinder Singh
- Department of Agricultural Biotechnology, Assam Agricultural University, Jorhat, Assam, India
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5
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The DEAD-box RNA helicase eIF4A regulates plant development and interacts with the hnRNP LIF2L1 in Physcomitrella patens. Mol Genet Genomics 2019; 295:373-389. [PMID: 31781862 DOI: 10.1007/s00438-019-01628-x] [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: 03/18/2019] [Accepted: 11/20/2019] [Indexed: 12/26/2022]
Abstract
eIF4A is a RNA-stimulated ATPase and helicase. Besides its key role in regulating cap-dependent translation initiation in eukaryotes, it also performs specific functions in regulating cell cycle progression, plant growth and abiotic stress tolerance. Flowering plants encode three eIF4A paralogues, eIF4A1, eIF4A2 and eIF4A3 that share conserved sequence motifs but differ in functions. To date, however, no information is available on eIF4A in basal land plants. In this study we report that genome of the moss Physcomitrella patens encodes multiple eIF4A genes. The encoded proteins possess the highly conserved motifs characteristic of the DEAD box helicases. Spatial expression analysis shows these genes to be ubiquitously expressed in all tissue types with Pp3c6_1080V3.1 showing high expression in filamentous protonemata. Targeted deletion of conserved core motifs in Pp3c6_1080V3.1 slowed protonemata growth and resulted in dwarfing of leafy gametophores suggesting a role for Pp3c6_1080V3.1 in regulating cell division/elongation. Rapid and strong induction of Pp3c6_1080V3.1 under salt stress and slow recovery of knockout plants upon exposure to high salt further suggest Pp3c6_1080V3.1 to be involved in stress management in P. patens. Protein-protein interaction studies that show Pp3c6_1080V3.1 to interact with the Physcomitrella heterogenous ribonucleoprotein, LIF2L1, a transcriptional regulator of stress-responsive genes in Arabidopsis. The results presented in this study provide insight into evolutionary conserved functions of eIF4A and shed light on the novel link between eIF4A activities and stress mitigation pathways/RNA metabolic processes in P. patens.
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Montero H, Pérez-Gil G, Sampieri CL. Eukaryotic initiation factor 4A (eIF4A) during viral infections. Virus Genes 2019; 55:267-273. [PMID: 30796742 PMCID: PMC7088766 DOI: 10.1007/s11262-019-01641-7] [Citation(s) in RCA: 15] [Impact Index Per Article: 3.0] [Reference Citation Analysis] [Abstract] [Key Words] [Track Full Text] [Download PDF] [Figures] [Journal Information] [Subscribe] [Scholar Register] [Received: 06/14/2018] [Accepted: 12/27/2018] [Indexed: 01/09/2023]
Abstract
The helicase eIF4A is part of the cellular eIF4F translation initiation complex. The main functions of eIF4A are to remove secondary complex structures within the 5′-untranslated region and to displace proteins attached to mRNA. As intracellular parasites, viruses regulate the processes involved in protein synthesis, and different mechanisms related to controlling translation factors, such as eIF4A, have been found. The inhibitors of this factor are currently known; these substances could be used in the near future as part of antiviral pharmacological therapies in instances of replication cycles in which eIF4A is required. In this review, the particularities of how some viruses make use of this initiation factor to synthesize their proteins are discussed.
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Affiliation(s)
- Hilda Montero
- Instituto de Salud Pública, Universidad Veracruzana, Av. Luis Castelazo Ayala s/n. Col. Industrial Ánimas, 91190, Xalapa, Veracruz, Mexico.
| | - Gustavo Pérez-Gil
- Centro de Ciencias Biomédicas, Universidad Veracruzana, Av. Luis Castelazo Ayala s/n., Col. Industrial Ánimas, 91190, Xalapa, Veracruz, Mexico
| | - Clara L Sampieri
- Instituto de Salud Pública, Universidad Veracruzana, Av. Luis Castelazo Ayala s/n. Col. Industrial Ánimas, 91190, Xalapa, Veracruz, Mexico
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7
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Sim JS, Kesawat MS, Kumar M, Kim SY, Mani V, Subramanian P, Park S, Lee CM, Kim SR, Hahn BS. Lack of the α1,3-Fucosyltransferase Gene ( Osfuct) Affects Anther Development and Pollen Viability in Rice. Int J Mol Sci 2018; 19:ijms19041225. [PMID: 29670011 PMCID: PMC5979348 DOI: 10.3390/ijms19041225] [Citation(s) in RCA: 8] [Impact Index Per Article: 1.3] [Reference Citation Analysis] [Abstract] [Key Words] [MESH Headings] [Track Full Text] [Download PDF] [Figures] [Journal Information] [Subscribe] [Scholar Register] [Received: 03/18/2018] [Revised: 04/11/2018] [Accepted: 04/16/2018] [Indexed: 12/04/2022] Open
Abstract
N-linked glycosylation is one of the key post-translational modifications. α1,3-Fucosyltransferase (OsFucT) is responsible for transferring α1,3-linked fucose residues to the glycoprotein N-glycan in plants. We characterized an Osfuct mutant that displayed pleiotropic developmental defects, such as impaired anther and pollen development, diminished growth, shorter plant height, fewer tillers, and shorter panicle length and internodes under field conditions. In addition, the anthers were curved, the pollen grains were shriveled, and pollen viability and pollen number per anther decreased dramatically in the mutant. Matrix-assisted laser desorption/ionization time-of-flight analyses of the N-glycans revealed that α1,3-fucose was lacking in the N-glycan structure of the mutant. Mutant complementation revealed that the phenotype was caused by loss of Osfuct function. Transcriptome profiling also showed that several genes essential for plant developmental processes were significantly altered in the mutant, including protein kinases, transcription factors, genes involved in metabolism, genes related to protein synthesis, and hypothetical proteins. Moreover, the mutant exhibited sensitivity to an increased concentration of salt. This study facilitates a further understanding of the function of genes mediating N-glycan modification and anther and pollen development in rice.
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Affiliation(s)
- Joon-Soo Sim
- Metabolic Engineering Division, Department of Agricultural Biotechnology, National Institute of Agricultural Sciences, Rural Development Administration, Jeonju 54874, Korea.
| | - Mahipal Singh Kesawat
- Metabolic Engineering Division, Department of Agricultural Biotechnology, National Institute of Agricultural Sciences, Rural Development Administration, Jeonju 54874, Korea.
| | - Manu Kumar
- Department of Life Sciences, Sogang University, Seoul 121-742, Korea.
| | - Su-Yeon Kim
- Metabolic Engineering Division, Department of Agricultural Biotechnology, National Institute of Agricultural Sciences, Rural Development Administration, Jeonju 54874, Korea.
| | - Vimalraj Mani
- Metabolic Engineering Division, Department of Agricultural Biotechnology, National Institute of Agricultural Sciences, Rural Development Administration, Jeonju 54874, Korea.
| | - Parthiban Subramanian
- Metabolic Engineering Division, Department of Agricultural Biotechnology, National Institute of Agricultural Sciences, Rural Development Administration, Jeonju 54874, Korea.
| | - Soyoung Park
- Metabolic Engineering Division, Department of Agricultural Biotechnology, National Institute of Agricultural Sciences, Rural Development Administration, Jeonju 54874, Korea.
| | - Chang-Muk Lee
- Metabolic Engineering Division, Department of Agricultural Biotechnology, National Institute of Agricultural Sciences, Rural Development Administration, Jeonju 54874, Korea.
| | - Seong-Ryong Kim
- Department of Life Sciences, Sogang University, Seoul 121-742, Korea.
| | - Bum-Soo Hahn
- Metabolic Engineering Division, Department of Agricultural Biotechnology, National Institute of Agricultural Sciences, Rural Development Administration, Jeonju 54874, Korea.
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Li J, Liu X, Yang X, Li Y, Wang C, He D. Proteomic analysis of the impacts of powdery mildew on wheat grain. Food Chem 2018; 261:30-35. [PMID: 29739597 DOI: 10.1016/j.foodchem.2018.04.024] [Citation(s) in RCA: 14] [Impact Index Per Article: 2.3] [Reference Citation Analysis] [Abstract] [Key Words] [Track Full Text] [Journal Information] [Subscribe] [Scholar Register] [Received: 11/06/2017] [Revised: 04/08/2018] [Accepted: 04/09/2018] [Indexed: 01/08/2023]
Abstract
Powdery mildew of wheat is one of the major foliar diseases, causing significant yield loss and flour quality change. In this study, grain protein and starch response to powdery mildew infection were investigated. Total protein, glutenin and gliadin exhibited a greater increase in grains from infected wheat, while the content of total starch and amylopectin was decreased. Comparative proteomic analysis demonstrated that the overabundant protein synthesis-related proteins might facilitate the accumulation of storage proteins in grains from infected plants. The significant increase in triticin, serpin and HMW-GS in grains from infected wheat might relate to the superior gluten quality. In addition, overabundant carbohydrate metabolism-related proteins in grains from infected wheat were conducive to the depletion of starch, whereas the decreased abundance of ADP glucose pyrophosphorylase might be related to the deficiency of starch synthesis. These results provide a deeper understanding on the change of wheat quality under powdery mildew infection.
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Affiliation(s)
- Jie Li
- College of Agronomy, Henan Agricultural University/Collaborative Innovation Center of Henan Grain Crops/National Key Laboratory of Wheat and Maize Crop Science, Zhengzhou, Henan 450002, China; College of Agronomy, Xinyang Agriculture and Forestry University, Xinyang, Henan 464001, China
| | - Xinhao Liu
- Kaifeng Agriculture and Forestry Science Institute, Kaifeng, Henan 475004, China
| | - Xiwen Yang
- College of Agronomy, Henan Agricultural University/Collaborative Innovation Center of Henan Grain Crops/National Key Laboratory of Wheat and Maize Crop Science, Zhengzhou, Henan 450002, China
| | - Yongchun Li
- College of Agronomy, Henan Agricultural University/National Engineering Research Centre for Wheat/Collaborative Innovation Center of Henan Grain Crops, Zhengzhou, China
| | - Chenyang Wang
- College of Agronomy, Henan Agricultural University/National Engineering Research Centre for Wheat/Collaborative Innovation Center of Henan Grain Crops, Zhengzhou, China
| | - Dexian He
- College of Agronomy, Henan Agricultural University/Collaborative Innovation Center of Henan Grain Crops/National Key Laboratory of Wheat and Maize Crop Science, Zhengzhou, Henan 450002, China.
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9
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Liu S, Gao J, Chen Z, Qiao X, Huang H, Cui B, Zhu Q, Dai Z, Wu H, Pan Y, Yang C, Liu J. Comparative proteomics reveals the physiological differences between winter tender shoots and spring tender shoots of a novel tea (Camellia sinensis L.) cultivar evergrowing in winter. BMC PLANT BIOLOGY 2017; 17:206. [PMID: 29157222 PMCID: PMC5697017 DOI: 10.1186/s12870-017-1144-x] [Citation(s) in RCA: 5] [Impact Index Per Article: 0.7] [Reference Citation Analysis] [Abstract] [Key Words] [MESH Headings] [Grants] [Track Full Text] [Subscribe] [Scholar Register] [Received: 01/24/2017] [Accepted: 10/31/2017] [Indexed: 05/18/2023]
Abstract
BACKGROUND A recently discovered tea [Camellia sinensis (L.) O. Kuntze] cultivar can generate tender shoots in winter. We performed comparative proteomics to analyze the differentially accumulated proteins between winter and spring tender shoots of this clonal cultivar to reveal the physiological basis of its evergrowing character during winter. RESULTS We extracted proteins from the winter and spring tender shoots (newly formed two leaves and a bud) of the evergrowing tea cultivar "Dongcha11" respectively. Thirty-three differentially accumulated high-confidence proteins were identified by matrix-assisted laser desorption ionization time of flight mass spectrometry (MALDI-TOF / TOF MS). Among these, 24 proteins had increased abundance while nine showed were decreased abundance in winter tender shoots as compared with the spring tender shoots. We categorized the differentially accumulated proteins into eight critical biological processes based on protein function annotation including photosynthesis, cell structure, protein synthesis & destination, transporters, metabolism of sugars and polysaccharides, secondary metabolism, disease/defense and proteins with unknown functions. Proteins with increased abundance in winter tender shoots were mainly related to the processes of photosynthesis, cytoskeleton and protein synthesis, whereas those with decreased abundance were correlated to metabolism and the secondary metabolism of polyphenolic flavonoids. Biochemical analysis showed that the total contents of soluble sugar and amino acid were higher in winter tender shoots while tea polyphenols were lower as compared with spring tender shoots. CONCLUSIONS Our study suggested that the simultaneous increase in the abundance of photosynthesis-related proteins rubisco, plastocyanin, and ATP synthase delta chain, metabolism-related proteins eIF4 and protease subunits, and the cytoskeleton-structure associated proteins phosphatidylinositol transfer protein and profilin may be because of the adaptation of the evergrowing tea cultivar "Dongcha11" to low temperature and light conditions. Histone H4, Histone H2A.1, putative In2.1 protein and protein lin-28 homologs may also regulate the development of winter shoots and their response to adverse conditions.
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Affiliation(s)
- Shengjie Liu
- Agro-biological Gene Research Center, Guangdong Academy of Agricultural Sciences, Guangzhou, Guangdong 510640 China
- Guangdong Key Lab of Biotechnology for Plant Development, College of Life Science, South China Normal University, Guangzhou, Guangdong 510631 China
| | - Jiadong Gao
- Agro-biological Gene Research Center, Guangdong Academy of Agricultural Sciences, Guangzhou, Guangdong 510640 China
| | - Zhongjian Chen
- Agro-biological Gene Research Center, Guangdong Academy of Agricultural Sciences, Guangzhou, Guangdong 510640 China
| | - Xiaoyan Qiao
- Tea Research Institute, Guangdong Academy of Agricultural Sciences, Guangzhou, Guangdong 510640 China
| | - Hualin Huang
- Tea Research Institute, Guangdong Academy of Agricultural Sciences, Guangzhou, Guangdong 510640 China
| | - Baiyuan Cui
- Agro-biological Gene Research Center, Guangdong Academy of Agricultural Sciences, Guangzhou, Guangdong 510640 China
| | - Qingfeng Zhu
- Agro-biological Gene Research Center, Guangdong Academy of Agricultural Sciences, Guangzhou, Guangdong 510640 China
| | - Zhangyan Dai
- Agro-biological Gene Research Center, Guangdong Academy of Agricultural Sciences, Guangzhou, Guangdong 510640 China
| | - Hualing Wu
- Tea Research Institute, Guangdong Academy of Agricultural Sciences, Guangzhou, Guangdong 510640 China
| | - Yayan Pan
- Agro-biological Gene Research Center, Guangdong Academy of Agricultural Sciences, Guangzhou, Guangdong 510640 China
| | - Chengwei Yang
- Guangdong Key Lab of Biotechnology for Plant Development, College of Life Science, South China Normal University, Guangzhou, Guangdong 510631 China
| | - Jun Liu
- Agro-biological Gene Research Center, Guangdong Academy of Agricultural Sciences, Guangzhou, Guangdong 510640 China
- Tea Research Institute, Guangdong Academy of Agricultural Sciences, Guangzhou, Guangdong 510640 China
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10
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Bush MS, Pierrat O, Nibau C, Mikitova V, Zheng T, Corke FMK, Vlachonasios K, Mayberry LK, Browning KS, Doonan JH. eIF4A RNA Helicase Associates with Cyclin-Dependent Protein Kinase A in Proliferating Cells and Is Modulated by Phosphorylation. PLANT PHYSIOLOGY 2016; 172:128-40. [PMID: 27388680 PMCID: PMC5074640 DOI: 10.1104/pp.16.00435] [Citation(s) in RCA: 21] [Impact Index Per Article: 2.6] [Reference Citation Analysis] [Abstract] [MESH Headings] [Grants] [Track Full Text] [Subscribe] [Scholar Register] [Received: 03/31/2016] [Accepted: 07/05/2016] [Indexed: 05/03/2023]
Abstract
Eukaryotic initiation factor 4A (eIF4A) is a highly conserved RNA-stimulated ATPase and helicase involved in the initiation of messenger RNA translation. Previously, we found that eIF4A interacts with cyclin-dependent kinase A (CDKA), the plant ortholog of mammalian CDK1. Here, we show that this interaction occurs only in proliferating cells where the two proteins coassociate with 5'-cap-binding protein complexes, eIF4F or the plant-specific eIFiso4F. CDKA phosphorylates eIF4A on a conserved threonine residue (threonine-164) within the RNA-binding motif 1b TPGR. In vivo, a phospho-null (APGR) variant of the Arabidopsis (Arabidopsis thaliana) eIF4A1 protein retains the ability to functionally complement a mutant (eif4a1) plant line lacking eIF4A1, whereas a phosphomimetic (EPGR) variant fails to complement. The phospho-null variant (APGR) rescues the slow growth rate of roots and rosettes, together with the ovule-abortion and late-flowering phenotypes. In vitro, wild-type recombinant eIF4A1 and its phospho-null variant both support translation in cell-free wheat germ extracts dependent upon eIF4A, but the phosphomimetic variant does not support translation and also was deficient in ATP hydrolysis and helicase activity. These observations suggest a mechanism whereby CDK phosphorylation has the potential to down-regulate eIF4A activity and thereby affect translation.
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Affiliation(s)
- Maxwell S Bush
- Department of Cell and Developmental Biology, John Innes Centre, Norwich NR4 7UH, United Kingdom (M.S.B., O.P., V.M.);Institute of Biological, Environmental, and Rural Sciences, Aberystwyth University, Gogerddan Campus, Aberystwyth SY23 3EE, United Kingdom (C.N., F.M.K.C., K.V., J.H.D.);Institute of Virology and Biotechnology, Zhejiang Academy of Agricultural Science, Hangzhou City, Zhejiang Province 310021, China (T.Z.);Aristotle University of Thessaloniki, Faculty of Science, School of Biology, Department of Botany, 54124 Thessaloniki, Greece (K.V.); andDepartment of Molecular Biosciences and Institute for Cell and Molecular Biology, University of Texas, Austin, Texas 78712 (L.K.M., K.S.B.)
| | - Olivier Pierrat
- Department of Cell and Developmental Biology, John Innes Centre, Norwich NR4 7UH, United Kingdom (M.S.B., O.P., V.M.);Institute of Biological, Environmental, and Rural Sciences, Aberystwyth University, Gogerddan Campus, Aberystwyth SY23 3EE, United Kingdom (C.N., F.M.K.C., K.V., J.H.D.);Institute of Virology and Biotechnology, Zhejiang Academy of Agricultural Science, Hangzhou City, Zhejiang Province 310021, China (T.Z.);Aristotle University of Thessaloniki, Faculty of Science, School of Biology, Department of Botany, 54124 Thessaloniki, Greece (K.V.); andDepartment of Molecular Biosciences and Institute for Cell and Molecular Biology, University of Texas, Austin, Texas 78712 (L.K.M., K.S.B.)
| | - Candida Nibau
- Department of Cell and Developmental Biology, John Innes Centre, Norwich NR4 7UH, United Kingdom (M.S.B., O.P., V.M.);Institute of Biological, Environmental, and Rural Sciences, Aberystwyth University, Gogerddan Campus, Aberystwyth SY23 3EE, United Kingdom (C.N., F.M.K.C., K.V., J.H.D.);Institute of Virology and Biotechnology, Zhejiang Academy of Agricultural Science, Hangzhou City, Zhejiang Province 310021, China (T.Z.);Aristotle University of Thessaloniki, Faculty of Science, School of Biology, Department of Botany, 54124 Thessaloniki, Greece (K.V.); andDepartment of Molecular Biosciences and Institute for Cell and Molecular Biology, University of Texas, Austin, Texas 78712 (L.K.M., K.S.B.)
| | - Veronika Mikitova
- Department of Cell and Developmental Biology, John Innes Centre, Norwich NR4 7UH, United Kingdom (M.S.B., O.P., V.M.);Institute of Biological, Environmental, and Rural Sciences, Aberystwyth University, Gogerddan Campus, Aberystwyth SY23 3EE, United Kingdom (C.N., F.M.K.C., K.V., J.H.D.);Institute of Virology and Biotechnology, Zhejiang Academy of Agricultural Science, Hangzhou City, Zhejiang Province 310021, China (T.Z.);Aristotle University of Thessaloniki, Faculty of Science, School of Biology, Department of Botany, 54124 Thessaloniki, Greece (K.V.); andDepartment of Molecular Biosciences and Institute for Cell and Molecular Biology, University of Texas, Austin, Texas 78712 (L.K.M., K.S.B.)
| | - Tao Zheng
- Department of Cell and Developmental Biology, John Innes Centre, Norwich NR4 7UH, United Kingdom (M.S.B., O.P., V.M.);Institute of Biological, Environmental, and Rural Sciences, Aberystwyth University, Gogerddan Campus, Aberystwyth SY23 3EE, United Kingdom (C.N., F.M.K.C., K.V., J.H.D.);Institute of Virology and Biotechnology, Zhejiang Academy of Agricultural Science, Hangzhou City, Zhejiang Province 310021, China (T.Z.);Aristotle University of Thessaloniki, Faculty of Science, School of Biology, Department of Botany, 54124 Thessaloniki, Greece (K.V.); andDepartment of Molecular Biosciences and Institute for Cell and Molecular Biology, University of Texas, Austin, Texas 78712 (L.K.M., K.S.B.)
| | - Fiona M K Corke
- Department of Cell and Developmental Biology, John Innes Centre, Norwich NR4 7UH, United Kingdom (M.S.B., O.P., V.M.);Institute of Biological, Environmental, and Rural Sciences, Aberystwyth University, Gogerddan Campus, Aberystwyth SY23 3EE, United Kingdom (C.N., F.M.K.C., K.V., J.H.D.);Institute of Virology and Biotechnology, Zhejiang Academy of Agricultural Science, Hangzhou City, Zhejiang Province 310021, China (T.Z.);Aristotle University of Thessaloniki, Faculty of Science, School of Biology, Department of Botany, 54124 Thessaloniki, Greece (K.V.); andDepartment of Molecular Biosciences and Institute for Cell and Molecular Biology, University of Texas, Austin, Texas 78712 (L.K.M., K.S.B.)
| | - Konstantinos Vlachonasios
- Department of Cell and Developmental Biology, John Innes Centre, Norwich NR4 7UH, United Kingdom (M.S.B., O.P., V.M.);Institute of Biological, Environmental, and Rural Sciences, Aberystwyth University, Gogerddan Campus, Aberystwyth SY23 3EE, United Kingdom (C.N., F.M.K.C., K.V., J.H.D.);Institute of Virology and Biotechnology, Zhejiang Academy of Agricultural Science, Hangzhou City, Zhejiang Province 310021, China (T.Z.);Aristotle University of Thessaloniki, Faculty of Science, School of Biology, Department of Botany, 54124 Thessaloniki, Greece (K.V.); andDepartment of Molecular Biosciences and Institute for Cell and Molecular Biology, University of Texas, Austin, Texas 78712 (L.K.M., K.S.B.)
| | - Laura K Mayberry
- Department of Cell and Developmental Biology, John Innes Centre, Norwich NR4 7UH, United Kingdom (M.S.B., O.P., V.M.);Institute of Biological, Environmental, and Rural Sciences, Aberystwyth University, Gogerddan Campus, Aberystwyth SY23 3EE, United Kingdom (C.N., F.M.K.C., K.V., J.H.D.);Institute of Virology and Biotechnology, Zhejiang Academy of Agricultural Science, Hangzhou City, Zhejiang Province 310021, China (T.Z.);Aristotle University of Thessaloniki, Faculty of Science, School of Biology, Department of Botany, 54124 Thessaloniki, Greece (K.V.); andDepartment of Molecular Biosciences and Institute for Cell and Molecular Biology, University of Texas, Austin, Texas 78712 (L.K.M., K.S.B.)
| | - Karen S Browning
- Department of Cell and Developmental Biology, John Innes Centre, Norwich NR4 7UH, United Kingdom (M.S.B., O.P., V.M.);Institute of Biological, Environmental, and Rural Sciences, Aberystwyth University, Gogerddan Campus, Aberystwyth SY23 3EE, United Kingdom (C.N., F.M.K.C., K.V., J.H.D.);Institute of Virology and Biotechnology, Zhejiang Academy of Agricultural Science, Hangzhou City, Zhejiang Province 310021, China (T.Z.);Aristotle University of Thessaloniki, Faculty of Science, School of Biology, Department of Botany, 54124 Thessaloniki, Greece (K.V.); andDepartment of Molecular Biosciences and Institute for Cell and Molecular Biology, University of Texas, Austin, Texas 78712 (L.K.M., K.S.B.)
| | - John H Doonan
- Department of Cell and Developmental Biology, John Innes Centre, Norwich NR4 7UH, United Kingdom (M.S.B., O.P., V.M.);Institute of Biological, Environmental, and Rural Sciences, Aberystwyth University, Gogerddan Campus, Aberystwyth SY23 3EE, United Kingdom (C.N., F.M.K.C., K.V., J.H.D.);Institute of Virology and Biotechnology, Zhejiang Academy of Agricultural Science, Hangzhou City, Zhejiang Province 310021, China (T.Z.);Aristotle University of Thessaloniki, Faculty of Science, School of Biology, Department of Botany, 54124 Thessaloniki, Greece (K.V.); andDepartment of Molecular Biosciences and Institute for Cell and Molecular Biology, University of Texas, Austin, Texas 78712 (L.K.M., K.S.B.)
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Marayati BF, Hoskins V, Boger RW, Tucker JF, Fishman ES, Bray AS, Zhang K. The fission yeast MTREC and EJC orthologs ensure the maturation of meiotic transcripts during meiosis. RNA (NEW YORK, N.Y.) 2016; 22:1349-59. [PMID: 27365210 PMCID: PMC4986891 DOI: 10.1261/rna.055608.115] [Citation(s) in RCA: 4] [Impact Index Per Article: 0.5] [Reference Citation Analysis] [Abstract] [Key Words] [MESH Headings] [Grants] [Track Full Text] [Figures] [Subscribe] [Scholar Register] [Received: 12/07/2015] [Accepted: 05/21/2016] [Indexed: 06/06/2023]
Abstract
Meiosis is a highly regulated process by which genetic information is transmitted through sexual reproduction. It encompasses unique mechanisms that do not occur in vegetative cells, producing a distinct, well-regulated meiotic transcriptome. During vegetative growth, many meiotic genes are constitutively transcribed, but most of the resulting mRNAs are rapidly eliminated by the Mmi1-MTREC (Mtl1-Red1 core) complex. While Mmi1-MTREC targets premature meiotic RNAs for degradation by the nuclear 3'-5' exoribonuclease exosome during mitotic growth, its role in meiotic gene expression during meiosis is not known. Here, we report that Red5, an essential MTREC component, interacts with pFal1, an ortholog of eukaryotic translation initiation factor eIF4aIII in the fission yeast Schizosaccharomyces pombe In mammals, together with MAGO (Mnh1), Rnps1, and Y14, elF4AIII (pFal1) forms the core of the exon junction complex (EJC), which is essential for transcriptional surveillance and localization of mature mRNAs. In fission yeast, two EJC orthologs, pFal1 and Mnh1, are functionally connected with MTREC, specifically in the process of meiotic gene expression during meiosis. Although pFal1 interacts with Mnh1, Y14, and Rnps1, its association with Mnh1 is not disrupted upon loss of Y14 or Rnps1. Mutations of Red1, Red5, pFal1, or Mnh1 produce severe meiotic defects; the abundance of meiotic transcripts during meiosis decreases; and mRNA maturation processes such as splicing are impaired. Since studying meiosis in mammalian germline cells is difficult, our findings in fission yeast may help to define the general mechanisms involved in accurate meiotic gene expression in higher eukaryotes.
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Affiliation(s)
- Bahjat Fadi Marayati
- Department of Biology and Center for Molecular Communication and Signaling, Wake Forest University, Winston-Salem, North Carolina 27106, USA
| | - Victoria Hoskins
- Program of Human Genetics, Johns Hopkins School of Medicine, Baltimore, Maryland 21205, USA
| | - Robert W Boger
- Department of Biology and Center for Molecular Communication and Signaling, Wake Forest University, Winston-Salem, North Carolina 27106, USA
| | - James F Tucker
- Department of Biology and Center for Molecular Communication and Signaling, Wake Forest University, Winston-Salem, North Carolina 27106, USA
| | - Emily S Fishman
- Department of Biology and Center for Molecular Communication and Signaling, Wake Forest University, Winston-Salem, North Carolina 27106, USA
| | - Andrew S Bray
- Department of Biology and Center for Molecular Communication and Signaling, Wake Forest University, Winston-Salem, North Carolina 27106, USA
| | - Ke Zhang
- Department of Biology and Center for Molecular Communication and Signaling, Wake Forest University, Winston-Salem, North Carolina 27106, USA
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12
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Manjulatha M, Sreevathsa R, Kumar AM, Sudhakar C, Prasad TG, Tuteja N, Udayakumar M. Overexpression of a pea DNA helicase (PDH45) in peanut (Arachis hypogaea L.) confers improvement of cellular level tolerance and productivity under drought stress. Mol Biotechnol 2014; 56:111-25. [PMID: 23881361 DOI: 10.1007/s12033-013-9687-z] [Citation(s) in RCA: 22] [Impact Index Per Article: 2.2] [Reference Citation Analysis] [Abstract] [MESH Headings] [Track Full Text] [Journal Information] [Subscribe] [Scholar Register] [Indexed: 01/21/2023]
Abstract
Peanut, a major edible oil seed crop globally is predominantly grown under rainfed conditions and suffers yield losses due to drought. Development of drought-tolerant varieties through transgenic technology is a valid approach. Besides superior water relation traits like water mining, intrinsic cellular level tolerance mechanisms are important to sustain the growth under stress. To achieve this objective, the focus of this study was to pyramid drought adaptive traits by overexpressing a stress responsive helicase, PDH45 in the background of a genotype with superior water relations. PCR, Southern, and RT-PCR analyses confirmed stable integration and expression of the PDH45 gene in peanut transgenics. At the end of T₃ generation, eight transgenic events were identified as promising based on stress tolerance and improvement in productivity. Several transgenic lines showed stay-green phenotype and increased chlorophyll stability under stress and reduced chlorophyll retardation under etherel-induced simulated stress conditions. Stress-induced root growth was also substantially higher in the case of transformants. This was reflected in increased WUE (low Δ¹³C) and improved growth rates and productivity. The transgenics showed 17.2 and 26.75 % increase in yield under non-stress and stress conditions over wild type ascertaining the feasibility of trait pyramiding strategy for the development of drought-tolerant peanut.
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Affiliation(s)
- M Manjulatha
- Department of Botany, Sri Krishnadevaraya University, Anantapur, Andhra Pradesh, India
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13
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Gupta S, Bhar A, Chatterjee M, Das S. Fusarium oxysporum f.sp. ciceri race 1 induced redox state alterations are coupled to downstream defense signaling in root tissues of chickpea (Cicer arietinum L.). PLoS One 2013; 8:e73163. [PMID: 24058463 PMCID: PMC3772884 DOI: 10.1371/journal.pone.0073163] [Citation(s) in RCA: 35] [Impact Index Per Article: 3.2] [Reference Citation Analysis] [Abstract] [MESH Headings] [Track Full Text] [Download PDF] [Figures] [Journal Information] [Subscribe] [Scholar Register] [Received: 03/18/2013] [Accepted: 07/17/2013] [Indexed: 12/22/2022] Open
Abstract
Reactive oxygen species are known to play pivotal roles in pathogen perception, recognition and downstream defense signaling. But, how these redox alarms coordinate in planta into a defensive network is still intangible. Present study illustrates the role of Fusarium oxysporum f.sp ciceri Race1 (Foc1) induced redox responsive transcripts in regulating downstream defense signaling in chickpea. Confocal microscopic studies highlighted pathogen invasion and colonization accompanied by tissue damage and deposition of callose degraded products at the xylem vessels of infected roots of chickpea plants. Such depositions led to the clogging of xylem vessels in compatible hosts while the resistant plants were devoid of such obstructions. Lipid peroxidation assays also indicated fungal induced membrane injury. Cell shrinkage and gradual nuclear adpression appeared as interesting features marking fungal ingress. Quantitative real time polymerase chain reaction exhibited differential expression patterns of redox regulators, cellular transporters and transcription factors during Foc1 progression. Network analysis showed redox regulators, cellular transporters and transcription factors to coordinate into a well orchestrated defensive network with sugars acting as internal signal modulators. Respiratory burst oxidase homologue, cationic peroxidase, vacuolar sorting receptor, polyol transporter, sucrose synthase, and zinc finger domain containing transcription factor appeared as key molecular candidates controlling important hubs of the defense network. Functional characterization of these hub controllers may prove to be promising in understanding chickpea-Foc1 interaction and developing the case study as a model for looking into the complexities of wilt diseases of other important crop legumes.
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Affiliation(s)
- Sumanti Gupta
- Division of Plant Biology, Bose Institute, Kolkata, West Bengal, India
| | - Anirban Bhar
- Division of Plant Biology, Bose Institute, Kolkata, West Bengal, India
| | - Moniya Chatterjee
- Division of Plant Biology, Bose Institute, Kolkata, West Bengal, India
| | - Sampa Das
- Division of Plant Biology, Bose Institute, Kolkata, West Bengal, India
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14
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Tajrishi MM, Vaid N, Tuteja R, Tuteja N. Overexpression of a pea DNA helicase 45 in bacteria confers salinity stress tolerance. PLANT SIGNALING & BEHAVIOR 2011; 6:1271-5. [PMID: 21847021 PMCID: PMC3258049 DOI: 10.4161/psb.6.9.16726] [Citation(s) in RCA: 6] [Impact Index Per Article: 0.5] [Reference Citation Analysis] [Abstract] [Key Words] [MESH Headings] [Track Full Text] [Subscribe] [Scholar Register] [Received: 05/13/2011] [Revised: 06/06/2011] [Accepted: 06/06/2011] [Indexed: 05/18/2023]
Abstract
Salinity stress is one of the major factors negatively affecting growth and productivity in living organisms including plants and bacteria resulting in significant losses worldwide. Therefore, it would be fruitful to develop salinity stress tolerant useful species and also to understand the mechanism of stress tolerance. The pea DNA helicase 45 (PDH45) is a DNA and RNA helicase, homologous to eukaryotic translation initiation factor 4A (eIF-4A) and is involved in various processes including protein synthesis, maintaining the basic activities of the cell, upregulation of topoisomerase I activity and salinity stress tolerance in plant, but its role in salinity stress tolerance in bacteria has not heretofore been studied. This study provides an evidence for a novel function of the PDH45 gene in high salinity (NaCl) stress tolerance in bacteria (Eschericia coli, BL21 cells) also. Furthermore, it has been shown that the functionally active PDH45 gene is required to show the stress tolerance in bacteria because the single mutants (E183G or R363Q) and the double mutant (E183G + R363Q) of the gene could not confer the same function. The response was specific to Na+ ions as the bacteria could not grow in presence of LiCl. This study suggests that the cellular response to high salinity stress across prokaryotes and plant kingdom is conserved and also helps in our better understanding of mechanism of stress tolerance in bacteria and plants. It could also be very useful in developing high salinity stress tolerant useful bacteria of agronomic importance. Overall, this study provides an evidence for a novel function of the PDH45 gene in high salinity stress tolerance in bacteria.
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Affiliation(s)
- Marjan M Tajrishi
- International Center for Genetic Engineering and Biotechnology, Aruna Asaf Ali Marg, New Delhi, India
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