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Liu J, Wang X, Wu H, Zhu Y, Ahmad I, Dong G, Zhou G, Wu Y. Association between Reactive Oxygen Species, Transcription Factors, and Candidate Genes in Drought-Resistant Sorghum. Int J Mol Sci 2024; 25:6464. [PMID: 38928168 PMCID: PMC11203540 DOI: 10.3390/ijms25126464] [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: 05/08/2024] [Revised: 06/04/2024] [Accepted: 06/08/2024] [Indexed: 06/28/2024] Open
Abstract
Drought stress is one of the most severe natural disasters in terms of its frequency, length, impact intensity, and associated losses, making it a significant threat to agricultural productivity. Sorghum (Sorghum bicolor), a C4 plant, shows a wide range of morphological, physiological, and biochemical adaptations in response to drought stress, paving the way for it to endure harsh environments. In arid environments, sorghum exhibits enhanced water uptake and reduced dissipation through its morphological activity, allowing it to withstand drought stress. Sorghum exhibits physiological and biochemical resistance to drought, primarily by adjusting its osmotic potential, scavenging reactive oxygen species, and changing the activities of its antioxidant enzymes. In addition, certain sorghum genes exhibit downregulation capabilities in response to drought stress. Therefore, in the current review, we explore drought tolerance in sorghum, encompassing its morphological characteristics and physiological mechanisms and the identification and selection of its functional genes. The use of modern biotechnological and molecular biological approaches to improving sorghum resistance is critical for selecting and breeding drought-tolerant sorghum varieties.
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Affiliation(s)
- Jiao Liu
- Joint International Laboratory of Agriculture and Agri-Product Safety, Yangzhou University, Yangzhou 225000, China; (J.L.); (X.W.); (H.W.); (Y.Z.); (I.A.)
- Jiangsu Key Laboratory of Crop Cultivation and Physiology, Yangzhou University, Yangzhou 225000, China;
| | - Xin Wang
- Joint International Laboratory of Agriculture and Agri-Product Safety, Yangzhou University, Yangzhou 225000, China; (J.L.); (X.W.); (H.W.); (Y.Z.); (I.A.)
- Jiangsu Key Laboratory of Crop Cultivation and Physiology, Yangzhou University, Yangzhou 225000, China;
| | - Hao Wu
- Joint International Laboratory of Agriculture and Agri-Product Safety, Yangzhou University, Yangzhou 225000, China; (J.L.); (X.W.); (H.W.); (Y.Z.); (I.A.)
- Jiangsu Key Laboratory of Crop Cultivation and Physiology, Yangzhou University, Yangzhou 225000, China;
| | - Yiming Zhu
- Joint International Laboratory of Agriculture and Agri-Product Safety, Yangzhou University, Yangzhou 225000, China; (J.L.); (X.W.); (H.W.); (Y.Z.); (I.A.)
- Jiangsu Key Laboratory of Crop Cultivation and Physiology, Yangzhou University, Yangzhou 225000, China;
| | - Irshad Ahmad
- Joint International Laboratory of Agriculture and Agri-Product Safety, Yangzhou University, Yangzhou 225000, China; (J.L.); (X.W.); (H.W.); (Y.Z.); (I.A.)
- Jiangsu Key Laboratory of Crop Cultivation and Physiology, Yangzhou University, Yangzhou 225000, China;
| | - Guichun Dong
- Jiangsu Key Laboratory of Crop Cultivation and Physiology, Yangzhou University, Yangzhou 225000, China;
| | - Guisheng Zhou
- Joint International Laboratory of Agriculture and Agri-Product Safety, Yangzhou University, Yangzhou 225000, China; (J.L.); (X.W.); (H.W.); (Y.Z.); (I.A.)
- Jiangsu Key Laboratory of Crop Cultivation and Physiology, Yangzhou University, Yangzhou 225000, China;
| | - Yanqing Wu
- Joint International Laboratory of Agriculture and Agri-Product Safety, Yangzhou University, Yangzhou 225000, China; (J.L.); (X.W.); (H.W.); (Y.Z.); (I.A.)
- Jiangsu Key Laboratory of Crop Cultivation and Physiology, Yangzhou University, Yangzhou 225000, China;
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Che-Othman MH, Millar AH, Taylor NL. Connecting salt stress signalling pathways with salinity-induced changes in mitochondrial metabolic processes in C3 plants. PLANT, CELL & ENVIRONMENT 2017; 40:2875-2905. [PMID: 28741669 DOI: 10.1111/pce.13034] [Citation(s) in RCA: 46] [Impact Index Per Article: 6.6] [Reference Citation Analysis] [Abstract] [Key Words] [MESH Headings] [Track Full Text] [Subscribe] [Scholar Register] [Received: 04/03/2017] [Revised: 06/26/2017] [Accepted: 07/09/2017] [Indexed: 05/12/2023]
Abstract
Salinity exerts a severe detrimental effect on crop yields globally. Growth of plants in saline soils results in physiological stress, which disrupts the essential biochemical processes of respiration, photosynthesis, and transpiration. Understanding the molecular responses of plants exposed to salinity stress can inform future strategies to reduce agricultural losses due to salinity; however, it is imperative that signalling and functional response processes are connected to tailor these strategies. Previous research has revealed the important role that plant mitochondria play in the salinity response of plants. Review of this literature shows that 2 biochemical processes required for respiratory function are affected under salinity stress: the tricarboxylic acid cycle and the transport of metabolites across the inner mitochondrial membrane. However, the mechanisms by which components of these processes are affected or react to salinity stress are still far from understood. Here, we examine recent findings on the signal transduction pathways that lead to adaptive responses of plants to salinity and discuss how they can be involved in and be affected by modulation of the machinery of energy metabolism with attention to the role of the tricarboxylic acid cycle enzymes and mitochondrial membrane transporters in this process.
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Affiliation(s)
- M Hafiz Che-Othman
- ARC Centre of Excellence in Plant Energy Biology, School of Molecular Sciences, The University of Western Australia, Crawley, Western Australia, WA 6009, Australia
- School of Bioscience and Biotechnology, Faculty of Science and Technology, National University of Malaysia, Bangi, Selangor, 43600, Malaysia
| | - A Harvey Millar
- ARC Centre of Excellence in Plant Energy Biology, School of Molecular Sciences, The University of Western Australia, Crawley, Western Australia, WA 6009, Australia
| | - Nicolas L Taylor
- ARC Centre of Excellence in Plant Energy Biology, School of Molecular Sciences, The University of Western Australia, Crawley, Western Australia, WA 6009, Australia
- Institute of Agriculture, The University of Western Australia, Crawley, Western Australia, WA 6009, Australia
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Genome-wide identification and characterization of the homeodomain-leucine zipper I family of genes in cotton ( Gossypium spp.). ACTA ACUST UNITED AC 2016. [DOI: 10.1016/j.plgene.2016.05.002] [Citation(s) in RCA: 3] [Impact Index Per Article: 0.4] [Reference Citation Analysis] [Track Full Text] [Journal Information] [Subscribe] [Scholar Register] [Indexed: 11/20/2022]
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Shu Y, Tao Y, Wang S, Huang L, Yu X, Wang Z, Chen M, Gu W, Ma H. GmSBH1, a homeobox transcription factor gene, relates to growth and development and involves in response to high temperature and humidity stress in soybean. PLANT CELL REPORTS 2015; 34:1927-37. [PMID: 26205508 DOI: 10.1007/s00299-015-1840-7] [Citation(s) in RCA: 24] [Impact Index Per Article: 2.7] [Reference Citation Analysis] [Abstract] [Key Words] [MESH Headings] [Track Full Text] [Subscribe] [Scholar Register] [Received: 03/17/2015] [Revised: 06/24/2015] [Accepted: 07/07/2015] [Indexed: 05/11/2023]
Abstract
KEY MESSAGE GmSBH1 involves in response to high temperature and humidity stress. Homeobox transcription factors are key switches that control plant development processes. Glycine max H1 Sbh1 (GmSBH1) was the first homeobox gene isolated from soybean. In the present study, the full ORF of GmSBH1 was isolated, and the encoded protein was found to be a typical class I KNOX homeobox transcription factor. Subcellular localization and transcriptional activation assays showed that GmSBH1 is a nuclear protein and possesses transcriptional activation activity in the homeodomain. The KNOX1 domain was found to play a clear role in suppressing the transcriptional activation activity of GmSBH1. GmSBH1 showed different expression levels among different soybean tissues and was involved in response to high temperature and humidity (HTH) stress in developing soybean seeds. The overexpression of GmSBH1 in Arabidopsis altered leaf and stoma phenotypes and enhanced seed tolerance to HTH stress. Overall, our results indicated that GmSBH1 is involved in growth, development, and enhances tolerance to pre-harvest seed deterioration caused by HTH stress in soybean.
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Affiliation(s)
- Yingjie Shu
- State Key Laboratory of Crop Genetics and Germplasm Enhancement, Nanjing Agricultural University, Nanjing, 210095, China
- College of Agriculture, Anhui Science and Technology University, Fengyang, 233100, China
| | - Yuan Tao
- State Key Laboratory of Crop Genetics and Germplasm Enhancement, Nanjing Agricultural University, Nanjing, 210095, China
| | - Shuang Wang
- State Key Laboratory of Crop Genetics and Germplasm Enhancement, Nanjing Agricultural University, Nanjing, 210095, China
| | - Liyan Huang
- State Key Laboratory of Crop Genetics and Germplasm Enhancement, Nanjing Agricultural University, Nanjing, 210095, China
| | - Xingwang Yu
- State Key Laboratory of Crop Genetics and Germplasm Enhancement, Nanjing Agricultural University, Nanjing, 210095, China
| | - Zhankui Wang
- State Key Laboratory of Crop Genetics and Germplasm Enhancement, Nanjing Agricultural University, Nanjing, 210095, China
| | - Ming Chen
- State Key Laboratory of Crop Genetics and Germplasm Enhancement, Nanjing Agricultural University, Nanjing, 210095, China
| | - Weihong Gu
- Animal and Plant Introduction and Research Center, Shanghai Agricultural Academy, Shanghai, 201106, People's Republic of China
| | - Hao Ma
- State Key Laboratory of Crop Genetics and Germplasm Enhancement, Nanjing Agricultural University, Nanjing, 210095, China.
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Peng Z, He S, Gong W, Sun J, Pan Z, Xu F, Lu Y, Du X. Comprehensive analysis of differentially expressed genes and transcriptional regulation induced by salt stress in two contrasting cotton genotypes. BMC Genomics 2014; 15:760. [PMID: 25189468 PMCID: PMC4169805 DOI: 10.1186/1471-2164-15-760] [Citation(s) in RCA: 106] [Impact Index Per Article: 10.6] [Reference Citation Analysis] [Abstract] [Track Full Text] [Download PDF] [Figures] [Journal Information] [Subscribe] [Scholar Register] [Received: 04/30/2014] [Accepted: 08/04/2014] [Indexed: 12/26/2022] Open
Abstract
Background Cotton (Gossypium spp.) is one of the major fibre crops of the world. Although it is classified as salt tolerant crop, cotton growth and productivity are adversely affected by high salinity, especially at germination and seedling stages. Identification of genes and miRNAs responsible for salt tolerance in upland cotton (Gossypium hirsutum L.) would help reveal the molecular mechanisms of salt tolerance. We performed physiological experiments and transcriptome sequencing (mRNA-seq and small RNA-seq) of cotton leaves under salt stress using Illumina sequencing technology. Results We investigated two distinct salt stress phases—dehydration (4 h) and ionic stress (osmotic restoration; 24 h)—that were identified by physiological changes of 14-day-old seedlings of two cotton genotypes, one salt tolerant and the other salt sensitive, during a 72-h NaCl exposure. A comparative transcriptomics was used to monitor gene and miRNA differential expression at two time points (4 and 24 h) in leaves of the two cotton genotypes under salinity conditions. The expression patterns of differentially co-expressed unigenes were divided into six groups using short time-servies expression miner software. During a 24-h salt exposure, 819 transcription factor unigenes were differentially expressed in both genotypes, with 129 unigenes specifically expressed in the salt-tolerant genotype. Under salt stress, 108 conserved miRNAs from known families were differentially expressed at two time points in the salt-tolerant genotype. We further analyzed the predicted target genes of these miRNAs along with the transcriptome for each time point. Important expressed genes encoding membrane receptors, transporters, and pathways involved in biosynthesis and signal transduction of calcium-dependent protein kinase, mitogen-activated protein kinase, and hormones (abscisic acid and ethylene) were up-regulated. We also analyzed the salt stress response of some key miRNAs and their target genes and found that the expressions of five of nine target genes exhibited significant inverse correlations with their corresponding miRNAs. On the basis of these results, we constructed molecular regulatory pathways and a potential regulatory network for these salt-responsive miRNAs. Conclusions Our comprehensive transcriptome analysis has provided new insights into salt-stress response of upland cotton. The results should contribute to the development of genetically modified cotton with salt tolerance. Electronic supplementary material The online version of this article (doi:10.1186/1471-2164-15-760) contains supplementary material, which is available to authorized users.
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Affiliation(s)
| | | | | | | | | | | | - Yanli Lu
- State Key Laboratory of Cotton Biology/Institute of Cotton Research, Chinese Academy of Agricultural Sciences, 455000 Anyang, Henan, China.
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Rice EA, Khandelwal A, Creelman RA, Griffith C, Ahrens JE, Taylor JP, Murphy LR, Manjunath S, Thompson RL, Lingard MJ, Back SL, Larue H, Brayton BR, Burek AJ, Tiwari S, Adam L, Morrell JA, Caldo RA, Huai Q, Kouadio JLK, Kuehn R, Sant AM, Wingbermuehle WJ, Sala R, Foster M, Kinser JD, Mohanty R, Jiang D, Ziegler TE, Huang MG, Kuriakose SV, Skottke K, Repetti PP, Reuber TL, Ruff TG, Petracek ME, Loida PJ. Expression of a truncated ATHB17 protein in maize increases ear weight at silking. PLoS One 2014; 9:e94238. [PMID: 24736658 PMCID: PMC3988052 DOI: 10.1371/journal.pone.0094238] [Citation(s) in RCA: 20] [Impact Index Per Article: 2.0] [Reference Citation Analysis] [Abstract] [MESH Headings] [Track Full Text] [Download PDF] [Figures] [Journal Information] [Subscribe] [Scholar Register] [Received: 11/04/2013] [Accepted: 03/12/2014] [Indexed: 12/11/2022] Open
Abstract
ATHB17 (AT2G01430) is an Arabidopsis gene encoding a member of the α-subclass of the homeodomain leucine zipper class II (HD-Zip II) family of transcription factors. The ATHB17 monomer contains four domains common to all class II HD-Zip proteins: a putative repression domain adjacent to a homeodomain, leucine zipper, and carboxy terminal domain. However, it also possesses a unique N-terminus not present in other members of the family. In this study we demonstrate that the unique 73 amino acid N-terminus is involved in regulation of cellular localization of ATHB17. The ATHB17 protein is shown to function as a transcriptional repressor and an EAR-like motif is identified within the putative repression domain of ATHB17. Transformation of maize with an ATHB17 expression construct leads to the expression of ATHB17Δ113, a truncated protein lacking the first 113 amino acids which encodes a significant portion of the repression domain. Because ATHB17Δ113 lacks the repression domain, the protein cannot directly affect the transcription of its target genes. ATHB17Δ113 can homodimerize, form heterodimers with maize endogenous HD-Zip II proteins, and bind to target DNA sequences; thus, ATHB17Δ113 may interfere with HD-Zip II mediated transcriptional activity via a dominant negative mechanism. We provide evidence that maize HD-Zip II proteins function as transcriptional repressors and that ATHB17Δ113 relieves this HD-Zip II mediated transcriptional repression activity. Expression of ATHB17Δ113 in maize leads to increased ear size at silking and, therefore, may enhance sink potential. We hypothesize that this phenotype could be a result of modulation of endogenous HD-Zip II pathways in maize.
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Affiliation(s)
- Elena A. Rice
- Monsanto Company, St. Louis, Missouri, United States of America
| | - Abha Khandelwal
- Monsanto Company, St. Louis, Missouri, United States of America
| | - Robert A. Creelman
- Mendel Biotechnology Inc., Hayward, California, United States of America
| | - Cara Griffith
- Monsanto Company, St. Louis, Missouri, United States of America
| | | | | | | | - Siva Manjunath
- Monsanto Company, St. Louis, Missouri, United States of America
| | | | | | | | - Huachun Larue
- Monsanto Company, St. Louis, Missouri, United States of America
| | - Bonnie R. Brayton
- Dupont-Pioneer Hi-Bred International, Waipahu, Hawaii, United States of America
| | - Amanda J. Burek
- Mendel Biotechnology Inc., Hayward, California, United States of America
| | - Shiv Tiwari
- Dupont-Pioneer Hi-Bred International, Hayward, California, United States of America
| | - Luc Adam
- ABCAM, Burlingame, California, United States of America
| | | | - Rico A. Caldo
- Monsanto Company, St. Louis, Missouri, United States of America
| | - Qing Huai
- Monsanto Company, Cambridge, Massachusetts, United States of America
| | | | - Rosemarie Kuehn
- Monsanto Company, St. Louis, Missouri, United States of America
| | - Anagha M. Sant
- Monsanto Company, St. Louis, Missouri, United States of America
| | | | - Rodrigo Sala
- Monsanto Company, St. Louis, Missouri, United States of America
| | - Matt Foster
- Monsanto Company, St. Louis, Missouri, United States of America
| | - Josh D. Kinser
- Monsanto Company, St. Louis, Missouri, United States of America
| | - Radha Mohanty
- Monsanto Company, St. Louis, Missouri, United States of America
| | - Dongming Jiang
- Monsanto Company, St. Louis, Missouri, United States of America
| | - Todd E. Ziegler
- Monsanto Company, St. Louis, Missouri, United States of America
| | - Mingya G. Huang
- Monsanto Company, St. Louis, Missouri, United States of America
| | | | - Kyle Skottke
- Monsanto Company, St. Louis, Missouri, United States of America
| | - Peter P. Repetti
- Mendel Biotechnology Inc., Hayward, California, United States of America
| | - T. Lynne Reuber
- Mendel Biotechnology Inc., Hayward, California, United States of America
| | - Thomas G. Ruff
- Monsanto Company, St. Louis, Missouri, United States of America
| | | | - Paul J. Loida
- Monsanto Company, St. Louis, Missouri, United States of America
- * E-mail:
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Zahur M, Asif MA, Zeeshan N, Mehmood S, Malik MF, Asif AR. Homeobox leucine zipper proteins and cotton improvement. ACTA ACUST UNITED AC 2013. [DOI: 10.4236/abb.2013.410a3003] [Citation(s) in RCA: 4] [Impact Index Per Article: 0.4] [Reference Citation Analysis] [Track Full Text] [Journal Information] [Subscribe] [Scholar Register] [Indexed: 11/20/2022]
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Systematic analysis of sequences and expression patterns of drought-responsive members of the HD-Zip gene family in maize. PLoS One 2011; 6:e28488. [PMID: 22164299 PMCID: PMC3229603 DOI: 10.1371/journal.pone.0028488] [Citation(s) in RCA: 105] [Impact Index Per Article: 8.1] [Reference Citation Analysis] [Abstract] [Track Full Text] [Download PDF] [Figures] [Journal Information] [Subscribe] [Scholar Register] [Received: 05/24/2011] [Accepted: 11/09/2011] [Indexed: 02/07/2023] Open
Abstract
Background Members of the homeodomain-leucine zipper (HD-Zip) gene family encode transcription factors that are unique to plants and have diverse functions in plant growth and development such as various stress responses, organ formation and vascular development. Although systematic characterization of this family has been carried out in Arabidopsis and rice, little is known about HD-Zip genes in maize (Zea mays L.). Methods and Findings In this study, we described the identification and structural characterization of HD-Zip genes in the maize genome. A complete set of 55 HD-Zip genes (Zmhdz1-55) were identified in the maize genome using Blast search tools and categorized into four classes (HD-Zip I-IV) based on phylogeny. Chromosomal location of these genes revealed that they are distributed unevenly across all 10 chromosomes. Segmental duplication contributed largely to the expansion of the maize HD-ZIP gene family, while tandem duplication was only responsible for the amplification of the HD-Zip II genes. Furthermore, most of the maize HD-Zip I genes were found to contain an overabundance of stress-related cis-elements in their promoter sequences. The expression levels of the 17 HD-Zip I genes under drought stress were also investigated by quantitative real-time PCR (qRT-PCR). All of the 17 maize HD-ZIP I genes were found to be regulated by drought stress, and the duplicated genes within a sister pair exhibited the similar expression patterns, suggesting their conserved functions during the process of evolution. Conclusions Our results reveal a comprehensive overview of the maize HD-Zip gene family and provide the first step towards the selection of Zmhdz genes for cloning and functional research to uncover their roles in maize growth and development.
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