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Sun SR, Wu XB, Chen JS, Huang MT, Fu HY, Wang QN, Rott P, Gao SJ. Identification of a sugarcane bacilliform virus promoter that is activated by drought stress in plants. Commun Biol 2024; 7:368. [PMID: 38532083 DOI: 10.1038/s42003-024-06075-y] [Citation(s) in RCA: 0] [Impact Index Per Article: 0] [Reference Citation Analysis] [Abstract] [Grants] [Track Full Text] [Journal Information] [Subscribe] [Scholar Register] [Received: 03/02/2023] [Accepted: 03/20/2024] [Indexed: 03/28/2024] Open
Abstract
Sugarcane (Saccharum spp.) is an important sugar and biofuel crop in the world. It is frequently subjected to drought stress, thus causing considerable economic losses. Transgenic technology is an effective breeding approach to improve sugarcane tolerance to drought using drought-inducible promoter(s) to activate drought-resistance gene(s). In this study, six different promoters were cloned from sugarcane bacilliform virus (SCBV) genotypes exhibiting high genetic diversity. In β-glucuronidase (GUS) assays, expression of one of these promoters (PSCBV-YZ2060) is similar to the one driven by the CaMV 35S promoter and >90% higher compared to the other cloned promoters and Ubi1. Three SCBV promoters (PSCBV-YZ2060, PSCBV-TX, and PSCBV-CHN2) function as drought-induced promoters in transgenic Arabidopsis plants. In Arabidopsis, GUS activity driven by promoter PSCBV-YZ2060 is also upregulated by abscisic acid (ABA) and is 2.2-5.5-fold higher when compared to the same activity of two plant native promoters (PScRD29A from sugarcane and PAtRD29A from Arabidopsis). Mutation analysis revealed that a putative promoter region 1 (PPR1) and two ABA response elements (ABREs) are required in promoter PSCBV-YZ2060 to confer drought stress response and ABA induction. Yeast one-hybrid and electrophoretic mobility shift assays uncovered that transcription factors ScbZIP72 from sugarcane and AREB1 from Arabidopsis bind with two ABREs of promoter PSCBV-YZ2060. After ABA treatment or drought stress, the expression levels of endogenous ScbZIP72 and heterologous GUS are significantly increased in PSCBV-YZ2060:GUS transgenic sugarcane plants. Consequently, promoter PSCBV-YZ2060 is a possible alternative promoter for genetic engineering of drought-resistant transgenic crops such as sugarcane.
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Affiliation(s)
- Sheng-Ren Sun
- National Engineering Research Center for Sugarcane, Fujian Agriculture and Forestry University, Fuzhou, 350002, Fujian, China
- Institute of Nanfan & Seed Industry, Guangdong Academy of Sciences, Guangzhou, 510316, Guangdong, China
- Hainan Yazhou Bay Seed Laboratory, Sanya, 572024, Hainan, China
| | - Xiao-Bin Wu
- College of Ocean and Earth Sciences, Xiamen University, Xiamen, 361000, Fujian, China
| | - Jian-Sheng Chen
- College of Life Sciences, Fujian Agriculture and Forestry University, Fuzhou, 350002, Fujian, China
| | - Mei-Ting Huang
- National Engineering Research Center for Sugarcane, Fujian Agriculture and Forestry University, Fuzhou, 350002, Fujian, China
| | - Hua-Ying Fu
- National Engineering Research Center for Sugarcane, Fujian Agriculture and Forestry University, Fuzhou, 350002, Fujian, China
| | - Qin-Nan Wang
- Institute of Nanfan & Seed Industry, Guangdong Academy of Sciences, Guangzhou, 510316, Guangdong, China
| | - Philippe Rott
- CIRAD, UMR PHIM, 34398, Montpellier, France.
- PHIM Plant Health Institute, Univ Montpellier, CIRAD, INRAE, Institut Agro, IRD, Montpellier, France.
| | - San-Ji Gao
- National Engineering Research Center for Sugarcane, Fujian Agriculture and Forestry University, Fuzhou, 350002, Fujian, China.
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Chen Y, Zhang M, Sui D, Jiang J, Wang L. Role of bZIP Transcription Factors in Response to NaCl Stress in Tamarix ramosissima under Exogenous Potassium (K +). Genes (Basel) 2023; 14:2203. [PMID: 38137025 PMCID: PMC10743189 DOI: 10.3390/genes14122203] [Citation(s) in RCA: 0] [Impact Index Per Article: 0] [Reference Citation Analysis] [Abstract] [Key Words] [MESH Headings] [Grants] [Track Full Text] [Journal Information] [Subscribe] [Scholar Register] [Received: 10/24/2023] [Revised: 11/19/2023] [Accepted: 12/11/2023] [Indexed: 12/24/2023] Open
Abstract
Salt stress is a significant environmental factor affecting plant growth and development, with NaCl stress being one of the most common types of salt stress. The halophyte, Tamarix ramosissima Ledeb (T. ramosissima), is frequently utilized for the afforestation of saline-alkali soils. Indeed, there has been limited research and reports by experts and scholars on the regulatory mechanisms of basic leucine zipper (bZIP) genes in T. ramosissima when treated with exogenous potassium (K+) to alleviate the effects of NaCl stress. This study focused on the bZIP genes in T. ramosissima roots under NaCl stress with additional KCl applied. We identified key candidate genes and metabolic pathways related to bZIP and validated them through quantitative real-time PCR (qRT-PCR). The results revealed that under NaCl stress with additional KCl applied treatments at 0 h, 48 h, and 168 h, based on Pfam protein domain prediction and physicochemical property analysis, we identified 20 related bZIP genes. Notably, four bZIP genes (bZIP_2, bZIP_6, bZIP_16, and bZIP_18) were labeled with the plant hormone signal transduction pathway, showing a predominant up-regulation in expression levels. The results suggest that these genes may mediate multiple physiological pathways under NaCl stress with additional KCl applied at 48 h and 168 h, enhancing signal transduction, reducing the accumulation of ROS, and decreasing oxidative damage, thereby enhancing the tolerance of T. ramosissima to NaCl stress. This study provides gene resources and a theoretical basis for further breeding of salt-tolerant Tamarix species and the involvement of bZIP transcription factors in mitigating NaCl toxicity.
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Affiliation(s)
- Yahui Chen
- Jiangsu Academy of Forestry, Nanjing 211153, China; (Y.C.); (M.Z.); (D.S.)
- Collaborative Innovation Center of Sustainable Forestry in Southern China of Jiangsu Province, Nanjing Forestry University, Nanjing 210037, China
| | - Min Zhang
- Jiangsu Academy of Forestry, Nanjing 211153, China; (Y.C.); (M.Z.); (D.S.)
| | - Dezong Sui
- Jiangsu Academy of Forestry, Nanjing 211153, China; (Y.C.); (M.Z.); (D.S.)
| | - Jiang Jiang
- Collaborative Innovation Center of Sustainable Forestry in Southern China of Jiangsu Province, Nanjing Forestry University, Nanjing 210037, China
| | - Lei Wang
- Jiangsu Academy of Forestry, Nanjing 211153, China; (Y.C.); (M.Z.); (D.S.)
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Liu H, Tang X, Zhang N, Li S, Si H. Role of bZIP Transcription Factors in Plant Salt Stress. Int J Mol Sci 2023; 24:ijms24097893. [PMID: 37175598 PMCID: PMC10177800 DOI: 10.3390/ijms24097893] [Citation(s) in RCA: 14] [Impact Index Per Article: 14.0] [Reference Citation Analysis] [Abstract] [Key Words] [Grants] [Track Full Text] [Journal Information] [Subscribe] [Scholar Register] [Received: 03/22/2023] [Revised: 04/23/2023] [Accepted: 04/24/2023] [Indexed: 05/15/2023] Open
Abstract
Soil salinity has become an increasingly serious problem worldwide, greatly limiting crop development and yield, and posing a major challenge to plant breeding. Basic leucine zipper (bZIP) transcription factors are the most widely distributed and conserved transcription factors and are the main regulators controlling various plant response processes against external stimuli. The bZIP protein contains two domains: a highly conserved, DNA-binding alkaline region, and a diverse leucine zipper, which is one of the largest transcription factor families in plants. Plant bZIP is involved in many biological processes, such as flower development, seed maturation, dormancy, and senescence, and plays an important role in abiotic stresses such as salt damage, drought, cold damage, osmotic stress, mechanical damage, and ABA signal response. In addition, bZIP is involved in the regulation of plant response to biological stresses such as insect pests and pathogen infection through salicylic acid, jasmonic acid, and ABA signal transduction pathways. This review summarizes and discusses the structural characteristics and functional characterization of the bZIP transcription factor group, the bZIP transcription factor complex and its molecular regulation mechanisms related to salt stress resistance, and the regulation of transcription factors in plant salt stress resistance. This review provides a theoretical basis and research ideas for further exploration of the salt stress-related functions of bZIP transcription factors. It also provides a theoretical basis for crop genetic improvement and green production in agriculture.
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Affiliation(s)
- Haotian Liu
- College of Life Science and Technology, Gansu Agricultural University, Lanzhou 730070, China
| | - Xun Tang
- College of Life Science and Technology, Gansu Agricultural University, Lanzhou 730070, China
- State Key Laboratory of Aridland Crop Science, Gansu Agricultural University, Lanzhou 730070, China
| | - Ning Zhang
- College of Life Science and Technology, Gansu Agricultural University, Lanzhou 730070, China
- State Key Laboratory of Aridland Crop Science, Gansu Agricultural University, Lanzhou 730070, China
| | - Shigui Li
- College of Life Science and Technology, Gansu Agricultural University, Lanzhou 730070, China
- State Key Laboratory of Aridland Crop Science, Gansu Agricultural University, Lanzhou 730070, China
| | - Huaijun Si
- College of Life Science and Technology, Gansu Agricultural University, Lanzhou 730070, China
- State Key Laboratory of Aridland Crop Science, Gansu Agricultural University, Lanzhou 730070, China
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Cao Z, Ma Q, Weng Y, Shi J, Chen J, Hao Z. Genome-Wide Identification and Expression Analysis of TPS Gene Family in Liriodendron chinense. Genes (Basel) 2023; 14:genes14030770. [PMID: 36981040 PMCID: PMC10048281 DOI: 10.3390/genes14030770] [Citation(s) in RCA: 1] [Impact Index Per Article: 1.0] [Reference Citation Analysis] [Abstract] [Key Words] [Grants] [Track Full Text] [Journal Information] [Subscribe] [Scholar Register] [Received: 03/01/2023] [Revised: 03/17/2023] [Accepted: 03/20/2023] [Indexed: 03/30/2023] Open
Abstract
Terpenoids play a key role in plant growth and development, supporting resistance regulation and terpene synthase (TPS), which is the last link in the synthesis process of terpenoids. Liriodendron chinense, commonly called the Chinese tulip tree, is a rare and endangered tree species of the family Magnoliaceae. However, the genome-wide identification of the TPS gene family and its transcriptional responses to development and abiotic stress are still unclear. In the present study, we identified a total of 58 TPS genes throughout the L. chinense genome. A phylogenetic tree analysis showed that they were clustered into five subfamilies and unevenly distributed across six chromosomes. A cis-acting element analysis indicated that LcTPSs were assumed to be highly responsive to stress hormones, such as methyl jasmonate (MeJA) and abscisic acid (ABA). Consistent with this, transcriptome data showed that most LcTPS genes responded to abiotic stress, such as cold, drought, and hot stress, at the transcriptional level. Further analysis showed that LcTPS genes were expressed in a tissue-dependent manner, especially in buds, leaves, and bark. Quantitative reverse transcription PCR (qRT-PCR) analysis confirmed that LcTPS expression was significantly higher in mature leaves compared to young leaves. These results provide a reference for understanding the function and role of the TPS family, laying a foundation for further study of the regulation of TPS in terpenoid biosynthesis in L. chinense.
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Affiliation(s)
- Zijian Cao
- Key Laboratory of Forest Genetics & Biotechnology of Ministry of Education, Co-Innovation Center for Sustainable Forestry in Southern China, Nanjing Forestry University, Nanjing 210037, China
| | - Qianxi Ma
- Key Laboratory of Forest Genetics & Biotechnology of Ministry of Education, Co-Innovation Center for Sustainable Forestry in Southern China, Nanjing Forestry University, Nanjing 210037, China
| | - Yuhao Weng
- Key Laboratory of Forest Genetics & Biotechnology of Ministry of Education, Co-Innovation Center for Sustainable Forestry in Southern China, Nanjing Forestry University, Nanjing 210037, China
| | - Jisen Shi
- Key Laboratory of Forest Genetics & Biotechnology of Ministry of Education, Co-Innovation Center for Sustainable Forestry in Southern China, Nanjing Forestry University, Nanjing 210037, China
| | - Jinhui Chen
- Key Laboratory of Forest Genetics & Biotechnology of Ministry of Education, Co-Innovation Center for Sustainable Forestry in Southern China, Nanjing Forestry University, Nanjing 210037, China
| | - Zhaodong Hao
- Key Laboratory of Forest Genetics & Biotechnology of Ministry of Education, Co-Innovation Center for Sustainable Forestry in Southern China, Nanjing Forestry University, Nanjing 210037, China
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Zhang P, Liu J, Jia N, Wang M, Lu Y, Wang D, Zhang J, Zhang H, Wang X. Genome-wide identification and characterization of the bZIP gene family and their function in starch accumulation in Chinese chestnut ( Castanea mollissima Blume). FRONTIERS IN PLANT SCIENCE 2023; 14:1166717. [PMID: 37077628 PMCID: PMC10106562 DOI: 10.3389/fpls.2023.1166717] [Citation(s) in RCA: 0] [Impact Index Per Article: 0] [Reference Citation Analysis] [Abstract] [Key Words] [Track Full Text] [Figures] [Subscribe] [Scholar Register] [Received: 02/15/2023] [Accepted: 03/21/2023] [Indexed: 05/03/2023]
Abstract
The transcription factors of basic leucine zipper (bZIP) family genes play significant roles in stress response as well as growth and development in plants. However, little is known about the bZIP gene family in Chinese chestnut (Castanea mollissima Blume). To better understand the characteristics of bZIPs in chestnut and their function in starch accumulation, a series of analyses were performed including phylogenetic, synteny, co-expression and yeast one-hybrid analyses. Totally, we identified 59 bZIP genes that were unevenly distributed in the chestnut genome and named them CmbZIP01 to CmbZIP59. These CmbZIPs were clustered into 13 clades with clade-specific motifs and structures. A synteny analysis revealed that segmental duplication was the major driving force of expansion of the CmbZIP gene family. A total of 41 CmbZIP genes had syntenic relationships with four other species. The results from the co-expression analyses indicated that seven CmbZIPs in three key modules may be important in regulating starch accumulation in chestnut seeds. Yeast one-hybrid assays showed that transcription factors CmbZIP13 and CmbZIP35 might participate in starch accumulation in the chestnut seed by binding to the promoters of CmISA2 and CmSBE1_2, respectively. Our study provided basic information on CmbZIP genes, which can be utilized in future functional analysis and breeding studies.
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Affiliation(s)
- Penglong Zhang
- Engineering Research Center of Chestnut Industry Technology, Ministry of Education, Qinhuangdao, Hebei, China
- Hebei Key Laboratory of Horticultural Germplasm Excavation and Innovative Utilization, College of Horticulture Science and Technology, Hebei Normal University of Science and Technology, Changli, Hebei, China
| | - Jing Liu
- Engineering Research Center of Chestnut Industry Technology, Ministry of Education, Qinhuangdao, Hebei, China
- Hebei Key Laboratory of Horticultural Germplasm Excavation and Innovative Utilization, College of Horticulture Science and Technology, Hebei Normal University of Science and Technology, Changli, Hebei, China
| | - Nan Jia
- Changli Institute of Pomology, Hebei Academy of Agriculture and Forestry Science, Changli, Hebei, China
| | - Meng Wang
- Engineering Research Center of Chestnut Industry Technology, Ministry of Education, Qinhuangdao, Hebei, China
| | - Yi Lu
- Engineering Research Center of Chestnut Industry Technology, Ministry of Education, Qinhuangdao, Hebei, China
| | - Dongsheng Wang
- Hebei Key Laboratory of Horticultural Germplasm Excavation and Innovative Utilization, College of Horticulture Science and Technology, Hebei Normal University of Science and Technology, Changli, Hebei, China
| | - Jingzheng Zhang
- Hebei Key Laboratory of Horticultural Germplasm Excavation and Innovative Utilization, College of Horticulture Science and Technology, Hebei Normal University of Science and Technology, Changli, Hebei, China
| | - Haie Zhang
- Engineering Research Center of Chestnut Industry Technology, Ministry of Education, Qinhuangdao, Hebei, China
- Hebei Key Laboratory of Horticultural Germplasm Excavation and Innovative Utilization, College of Horticulture Science and Technology, Hebei Normal University of Science and Technology, Changli, Hebei, China
| | - Xuan Wang
- Engineering Research Center of Chestnut Industry Technology, Ministry of Education, Qinhuangdao, Hebei, China
- Hebei Key Laboratory of Horticultural Germplasm Excavation and Innovative Utilization, College of Horticulture Science and Technology, Hebei Normal University of Science and Technology, Changli, Hebei, China
- *Correspondence: Xuan Wang,
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Zhang Z, Ma W, Ren Z, Wang X, Zhao J, Pei X, Liu Y, He K, Zhang F, Huo W, Li W, Yang D, Ma X. Characterization and expression analysis of wall-associated kinase (WAK) and WAK-like family in cotton. Int J Biol Macromol 2021; 187:867-879. [PMID: 34339786 DOI: 10.1016/j.ijbiomac.2021.07.163] [Citation(s) in RCA: 14] [Impact Index Per Article: 4.7] [Reference Citation Analysis] [Abstract] [Key Words] [Journal Information] [Subscribe] [Scholar Register] [Received: 04/09/2021] [Revised: 06/07/2021] [Accepted: 07/26/2021] [Indexed: 11/17/2022]
Abstract
The wall-associated kinases (WAKs) and WAK-like kinases (WAKLs) form a group of receptor-like kinases (RLKs) with extracellular domains tightly linked to the cell wall. The WAKs/WAKLs have been known to be involved in plant growth, development, and stress responses. However, the functions of WAKs/WAKLs are less well known in cotton. In this study, 58, 66, and 99 WAK/WAKL genes were identified in Gossypium arboreum, G. raimondii, and G. hirsutum, respectively. Phylogenetic analysis showed they were classified into five groups, with two groups specific to cotton. Collinearity analysis revealed that segmental and tandem duplications resulted in expansion of the WAK/WAKL gene family in cotton. Moreover, the Ka/Ks ratios indicated this family was exposed to purifying selection pressure during evolution. The structures of the GhWAK/WAKL genes and encoded proteins suggested the functions of WAKs/WAKLs in cotton were conserved. Transient expression of four WAK/WAKL-GFP fusion constructs in Arabidopsis protoplasts indicated that they were localized on the plasma membrane. The cis-elements in the GhWAK/WAKL promoters were responsive to multiple phytohormones and abiotic stresses. Expression profiling showed that GhWAK/WAKL genes were induced by various abiotic stresses. This study provides insights into the evolution of WAK/WAKL genes and presents fundamental information for further analysis in cotton.
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Affiliation(s)
- Zhiqiang Zhang
- State Key Laboratory of Cotton Biology, Key Laboratory of Biological and Genetic Breeding of Cotton of the Ministry of Agriculture and Rural Affairs, Institute of Cotton Research, Chinese Academy of Agricultural Sciences, Anyang 455000, China; National Key Laboratory of Crop Genetic Improvement, College of Plant Science and Technology, Huazhong Agricultural University, Wuhan 430070, China
| | - Wenyu Ma
- State Key Laboratory of Cotton Biology, Key Laboratory of Biological and Genetic Breeding of Cotton of the Ministry of Agriculture and Rural Affairs, Institute of Cotton Research, Chinese Academy of Agricultural Sciences, Anyang 455000, China
| | - Zhongying Ren
- State Key Laboratory of Cotton Biology, Key Laboratory of Biological and Genetic Breeding of Cotton of the Ministry of Agriculture and Rural Affairs, Institute of Cotton Research, Chinese Academy of Agricultural Sciences, Anyang 455000, China
| | - Xingxing Wang
- State Key Laboratory of Cotton Biology, Key Laboratory of Biological and Genetic Breeding of Cotton of the Ministry of Agriculture and Rural Affairs, Institute of Cotton Research, Chinese Academy of Agricultural Sciences, Anyang 455000, China
| | - Junjie Zhao
- State Key Laboratory of Cotton Biology, Key Laboratory of Biological and Genetic Breeding of Cotton of the Ministry of Agriculture and Rural Affairs, Institute of Cotton Research, Chinese Academy of Agricultural Sciences, Anyang 455000, China
| | - Xiaoyu Pei
- State Key Laboratory of Cotton Biology, Key Laboratory of Biological and Genetic Breeding of Cotton of the Ministry of Agriculture and Rural Affairs, Institute of Cotton Research, Chinese Academy of Agricultural Sciences, Anyang 455000, China
| | - Yangai Liu
- State Key Laboratory of Cotton Biology, Key Laboratory of Biological and Genetic Breeding of Cotton of the Ministry of Agriculture and Rural Affairs, Institute of Cotton Research, Chinese Academy of Agricultural Sciences, Anyang 455000, China
| | - Kunlun He
- State Key Laboratory of Cotton Biology, Key Laboratory of Biological and Genetic Breeding of Cotton of the Ministry of Agriculture and Rural Affairs, Institute of Cotton Research, Chinese Academy of Agricultural Sciences, Anyang 455000, China
| | - Fei Zhang
- State Key Laboratory of Cotton Biology, Key Laboratory of Biological and Genetic Breeding of Cotton of the Ministry of Agriculture and Rural Affairs, Institute of Cotton Research, Chinese Academy of Agricultural Sciences, Anyang 455000, China
| | - Wenqi Huo
- Zhengzhou Research Base, State Key Laboratory of Cotton Biology, Zhengzhou University, Zhengzhou 450001, China
| | - Wei Li
- State Key Laboratory of Cotton Biology, Key Laboratory of Biological and Genetic Breeding of Cotton of the Ministry of Agriculture and Rural Affairs, Institute of Cotton Research, Chinese Academy of Agricultural Sciences, Anyang 455000, China; Zhengzhou Research Base, State Key Laboratory of Cotton Biology, Zhengzhou University, Zhengzhou 450001, China.
| | - Daigang Yang
- State Key Laboratory of Cotton Biology, Key Laboratory of Biological and Genetic Breeding of Cotton of the Ministry of Agriculture and Rural Affairs, Institute of Cotton Research, Chinese Academy of Agricultural Sciences, Anyang 455000, China; National Key Laboratory of Crop Genetic Improvement, College of Plant Science and Technology, Huazhong Agricultural University, Wuhan 430070, China; Zhengzhou Research Base, State Key Laboratory of Cotton Biology, Zhengzhou University, Zhengzhou 450001, China.
| | - Xiongfeng Ma
- State Key Laboratory of Cotton Biology, Key Laboratory of Biological and Genetic Breeding of Cotton of the Ministry of Agriculture and Rural Affairs, Institute of Cotton Research, Chinese Academy of Agricultural Sciences, Anyang 455000, China; Zhengzhou Research Base, State Key Laboratory of Cotton Biology, Zhengzhou University, Zhengzhou 450001, China.
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Chen Z, Fang X, Yuan X, Zhang Y, Li H, Zhou Y, Cui X. Overexpression of Transcription Factor GmTGA15 Enhances Drought Tolerance in Transgenic Soybean Hairy Roots and Arabidopsis Plants. AGRONOMY 2021; 11:170. [PMID: 0 DOI: 10.3390/agronomy11010170] [Citation(s) in RCA: 6] [Impact Index Per Article: 2.0] [Reference Citation Analysis] [Abstract] [Track Full Text] [Subscribe] [Scholar Register] [Indexed: 05/27/2023]
Abstract
Soybean (Glycine max) is one of the important oil crops worldwide. In recent years, environmental stresses such as drought and soil salinization have severely deteriorated soybean yield and quality. We investigated the overexpression of the transcription factor GmTGA15 in response to drought stress in transgenic soybean hairy roots and Arabidopsis plants. The results of quantitative real time polymerase chain reaction (qRT-PCR) analyses showed that GmTGA15 was greatly induced by salt, PEG6000, salicylic acid (SA), gibberellic acid (GA), abscisic acid (ABA), and methyl jasmonate (MeJA) in soybean. In response to drought stress, the contents of both chlorophyll and proline were significantly increased, while the content of malondialdehyde (MDA) was significantly decreased in the soybean hairy roots with the overexpression of GmTGA15 in comparison to wild type (WT). Under the simulated drought conditions, the transgenic Arabidopsis plants showed significantly longer roots and lower mortality than that of the wild type. These results suggest that GmTGA15 promotes tolerance to drought stress in both soybean and Arabidopsis plants. This study provides the scientific evidence for further functional analysis of soybean TGA transcription factors in drought stress and the breeding of drought-resistance crops.
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Zhang Y, Zhou J, Wei F, Song T, Yu Y, Yu M, Fan Q, Yang Y, Xue G, Zhang X. Nucleoredoxin Gene TaNRX1 Positively Regulates Drought Tolerance in Transgenic Wheat ( Triticum aestivum L.). FRONTIERS IN PLANT SCIENCE 2021; 12:756338. [PMID: 34868149 PMCID: PMC8632643 DOI: 10.3389/fpls.2021.756338] [Citation(s) in RCA: 1] [Impact Index Per Article: 0.3] [Reference Citation Analysis] [Abstract] [Key Words] [Grants] [Track Full Text] [Subscribe] [Scholar Register] [Received: 08/10/2021] [Accepted: 10/18/2021] [Indexed: 05/13/2023]
Abstract
Drought is the main abiotic stress factor limiting the growth and yield of wheat (Triticum aestivum L.). Therefore, improving wheat tolerance to drought stress is essential for maintaining yield. Previous studies have reported on the important role of TaNRX1 in conferring drought stress tolerance. Therefore, to elucidate the regulation mechanism by which TaNRX1 confers drought resistance in wheat, we generated TaNRX1 overexpression (OE) and RNA interference (RNAi) wheat lines. The results showed that the tolerance of the OE lines to drought stress were significantly enhanced. The survival rate, leaf chlorophyll, proline, soluble sugar content, and activities of the antioxidant enzymes (catalase, superoxide dismutase, and peroxidase) of the OE lines were higher than those of the wild type (WT); however, the relative electrical conductivity and malondialdehyde, hydrogen peroxide, and superoxide anion levels of the OE lines were lower than those of the WT; the RNAi lines showed the opposite results. RNA-seq results showed that the common differentially expressed genes of TaNRX1 OE and RNAi lines, before and after drought stress, were mainly distributed in the plant-pathogen interaction, plant hormone signal transduction, phenylpropane biosynthesis, starch and sucrose metabolism, and carbon metabolism pathways and were related to the transcription factors, including WRKY, MYB, and bHLH families. This study suggests that TaNRX1 positively regulates drought stress tolerance in wheat.
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Affiliation(s)
- Yunrui Zhang
- College of Agronomy, Northwest A&F University, Xianyang, China
| | - Jianfei Zhou
- College of Agronomy, Northwest A&F University, Xianyang, China
| | - Fan Wei
- College of Agronomy, Northwest A&F University, Xianyang, China
| | - Tianqi Song
- College of Agronomy, Northwest A&F University, Xianyang, China
| | - Yang Yu
- College of Agronomy, Northwest A&F University, Xianyang, China
| | - Ming Yu
- College of Agronomy, Northwest A&F University, Xianyang, China
| | - Qiru Fan
- College of Agronomy, Northwest A&F University, Xianyang, China
| | - Yanning Yang
- College of Agronomy, Northwest A&F University, Xianyang, China
| | - Gang Xue
- College of Tobacco, Henan Agricultural University, Zhengzhou, China
- *Correspondence: Gang Xue,
| | - Xiaoke Zhang
- College of Agronomy, Northwest A&F University, Xianyang, China
- Xiaoke Zhang,
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Wang W, Wang Y, Zhang S, Xie K, Zhang C, Xi Y, Sun F. Genome-wide analysis of the abiotic stress-related bZIP family in switchgrass. Mol Biol Rep 2020; 47:4439-4454. [PMID: 32476099 DOI: 10.1007/s11033-020-05561-w] [Citation(s) in RCA: 8] [Impact Index Per Article: 2.0] [Reference Citation Analysis] [Abstract] [Key Words] [Track Full Text] [Journal Information] [Subscribe] [Scholar Register] [Received: 01/23/2020] [Accepted: 05/27/2020] [Indexed: 11/27/2022]
Abstract
The large basic leucine zipper (bZIP) transcription factor family is conserved in plants. These proteins regulate growth, development, and stress response. Here, we conducted a genome-wide analysis to identify the bZIP genes associated with stress resistance in switchgrass (Panicum virgatum L.). We identified 178 PvbZIPs unevenly distributed on 18 switchgrass chromosomes. An evolutionary analysis segregated them into 10 subfamilies. Gene structure and conserved motif analyses indicated that the same subfamily members shared similar intron-exon modes and motif compositions. This finding corroborated the proposed PvbZIP family grouping. A promoter analysis showed that PvbZIP genes participate in various stress responses. Phylogenetic and synteny analyses characterized 111 switchgrass bZIPs as orthologs of 70 rice bZIPs. A protein interaction network analysis revealed that 22 proteins are involved in salt and drought tolerance. An expression atlas disclosed that the expression patterns of several PvbZIPs differ among various tissues and developmental stages. Online data demonstrated that 16 PvbZIPs were significantly downregulated and five were significantly upregulated in response to heat stress. Other PvbZIPs participated in responses to abiotic stress such as salt, drought, cold, and heat. Our genome-wide analysis and identification of the switchgrass bZIP family characterized multiple candidate PvbZIPs that regulate growth and stress response. This study lays theoretical and empirical foundations for future functional investigations into other transcription factors.
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Affiliation(s)
- Weiwei Wang
- College of Agronomy, Northwest A&F University, Yangling, 712100, Shaanxi, China
| | - Yongfeng Wang
- College of Agronomy, Northwest A&F University, Yangling, 712100, Shaanxi, China
| | - Shumeng Zhang
- College of Agronomy, Northwest A&F University, Yangling, 712100, Shaanxi, China
| | - Kunliang Xie
- College of Agronomy, Northwest A&F University, Yangling, 712100, Shaanxi, China
| | - Chao Zhang
- College of Agronomy, Northwest A&F University, Yangling, 712100, Shaanxi, China
| | - Yajun Xi
- College of Agronomy, Northwest A&F University, Yangling, 712100, Shaanxi, China
| | - Fengli Sun
- College of Agronomy, Northwest A&F University, Yangling, 712100, Shaanxi, China.
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Transcriptome changes induced by abiotic stresses in Artemisia annua. Sci Rep 2018; 8:3423. [PMID: 29467423 PMCID: PMC5821844 DOI: 10.1038/s41598-018-21598-1] [Citation(s) in RCA: 18] [Impact Index Per Article: 3.0] [Reference Citation Analysis] [Abstract] [Track Full Text] [Download PDF] [Figures] [Journal Information] [Subscribe] [Scholar Register] [Received: 05/25/2017] [Accepted: 02/07/2018] [Indexed: 11/13/2022] Open
Abstract
Artemisia annua is known to be the source of artemisinin worldwide which is an antimalarial compound but is synthesised in very limited amount in the plant. Most research laid emphasis on the methods of enhancing artemisinin but our study has been planned in a way that it may simultaneously address two problems encountered by the plant. Firstly, to know the effect on the artemisinin content in the era of climate change because the secondary metabolites tend to increase under stress. Secondly, to identify some of the stress responsive genes that could help in stress tolerance of the plant under abiotic stress. Hence, the A. annua plants were subjected to four abiotic stresses (salt, cold, drought and water-logging) and it was observed that the artemisinin content increased in all the stress conditions except drought. Next, in order to identify the stress responsive genes, the transcriptome sequencing of the plants under stress was carried out resulting in 89,362 transcripts for control and 81,328, 76,337, 90,470 and 96,493 transcripts for salt, cold, drought, and water logging stresses. This investigation provides new insights for functional studies of genes involved in multiple abiotic stresses and potential candidate genes for multiple stress tolerance in A. annua.
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11
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Ferreira THS, Tsunada MS, Bassi D, Araújo P, Mattiello L, Guidelli GV, Righetto GL, Gonçalves VR, Lakshmanan P, Menossi M. Sugarcane Water Stress Tolerance Mechanisms and Its Implications on Developing Biotechnology Solutions. FRONTIERS IN PLANT SCIENCE 2017; 8:1077. [PMID: 28690620 PMCID: PMC5481406 DOI: 10.3389/fpls.2017.01077] [Citation(s) in RCA: 37] [Impact Index Per Article: 5.3] [Reference Citation Analysis] [Abstract] [Key Words] [Track Full Text] [Subscribe] [Scholar Register] [Received: 03/24/2017] [Accepted: 06/06/2017] [Indexed: 05/20/2023]
Abstract
Sugarcane is a unique crop with the ability to accumulate high levels of sugar and is a commercially viable source of biomass for bioelectricity and second-generation bioethanol. Water deficit is the single largest abiotic stress affecting sugarcane productivity and the development of water use efficient and drought tolerant cultivars is an imperative for all major sugarcane producing countries. This review summarizes the physiological and molecular studies on water deficit stress in sugarcane, with the aim to help formulate more effective research strategies for advancing our knowledge on genes and mechanisms underpinning plant response to water stress. We also overview transgenic studies in sugarcane, with an emphasis on the potential strategies to develop superior sugarcane varieties that improve crop productivity in drought-prone environments.
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Affiliation(s)
- Thais H. S. Ferreira
- Functional Genome Laboratory, Department of Genetics, Evolution and Bioagents, Institute of Biology, State University of CampinasCampinas, Brazil
| | - Max S. Tsunada
- Functional Genome Laboratory, Department of Genetics, Evolution and Bioagents, Institute of Biology, State University of CampinasCampinas, Brazil
| | - Denis Bassi
- Functional Genome Laboratory, Department of Genetics, Evolution and Bioagents, Institute of Biology, State University of CampinasCampinas, Brazil
| | - Pedro Araújo
- Functional Genome Laboratory, Department of Genetics, Evolution and Bioagents, Institute of Biology, State University of CampinasCampinas, Brazil
| | - Lucia Mattiello
- Functional Genome Laboratory, Department of Genetics, Evolution and Bioagents, Institute of Biology, State University of CampinasCampinas, Brazil
| | - Giovanna V. Guidelli
- Functional Genome Laboratory, Department of Genetics, Evolution and Bioagents, Institute of Biology, State University of CampinasCampinas, Brazil
| | - Germanna L. Righetto
- Functional Genome Laboratory, Department of Genetics, Evolution and Bioagents, Institute of Biology, State University of CampinasCampinas, Brazil
| | - Vanessa R. Gonçalves
- Functional Genome Laboratory, Department of Genetics, Evolution and Bioagents, Institute of Biology, State University of CampinasCampinas, Brazil
| | | | - Marcelo Menossi
- Functional Genome Laboratory, Department of Genetics, Evolution and Bioagents, Institute of Biology, State University of CampinasCampinas, Brazil
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12
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Ferreira THS, Tsunada MS, Bassi D, Araújo P, Mattiello L, Guidelli GV, Righetto GL, Gonçalves VR, Lakshmanan P, Menossi M. Sugarcane Water Stress Tolerance Mechanisms and Its Implications on Developing Biotechnology Solutions. FRONTIERS IN PLANT SCIENCE 2017; 8:1077. [PMID: 28690620 PMCID: PMC5481406 DOI: 10.3389/fpls.2017.01077/full 10.3389/fpls.2017.01077] [Citation(s) in RCA: 0] [Impact Index Per Article: 0] [Reference Citation Analysis] [Abstract] [Key Words] [Subscribe] [Scholar Register] [Indexed: 05/07/2023]
Abstract
Sugarcane is a unique crop with the ability to accumulate high levels of sugar and is a commercially viable source of biomass for bioelectricity and second-generation bioethanol. Water deficit is the single largest abiotic stress affecting sugarcane productivity and the development of water use efficient and drought tolerant cultivars is an imperative for all major sugarcane producing countries. This review summarizes the physiological and molecular studies on water deficit stress in sugarcane, with the aim to help formulate more effective research strategies for advancing our knowledge on genes and mechanisms underpinning plant response to water stress. We also overview transgenic studies in sugarcane, with an emphasis on the potential strategies to develop superior sugarcane varieties that improve crop productivity in drought-prone environments.
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Affiliation(s)
- Thais H. S. Ferreira
- Functional Genome Laboratory, Department of Genetics, Evolution and Bioagents, Institute of Biology, State University of CampinasCampinas, Brazil
| | - Max S. Tsunada
- Functional Genome Laboratory, Department of Genetics, Evolution and Bioagents, Institute of Biology, State University of CampinasCampinas, Brazil
| | - Denis Bassi
- Functional Genome Laboratory, Department of Genetics, Evolution and Bioagents, Institute of Biology, State University of CampinasCampinas, Brazil
| | - Pedro Araújo
- Functional Genome Laboratory, Department of Genetics, Evolution and Bioagents, Institute of Biology, State University of CampinasCampinas, Brazil
| | - Lucia Mattiello
- Functional Genome Laboratory, Department of Genetics, Evolution and Bioagents, Institute of Biology, State University of CampinasCampinas, Brazil
| | - Giovanna V. Guidelli
- Functional Genome Laboratory, Department of Genetics, Evolution and Bioagents, Institute of Biology, State University of CampinasCampinas, Brazil
| | - Germanna L. Righetto
- Functional Genome Laboratory, Department of Genetics, Evolution and Bioagents, Institute of Biology, State University of CampinasCampinas, Brazil
| | - Vanessa R. Gonçalves
- Functional Genome Laboratory, Department of Genetics, Evolution and Bioagents, Institute of Biology, State University of CampinasCampinas, Brazil
| | | | - Marcelo Menossi
- Functional Genome Laboratory, Department of Genetics, Evolution and Bioagents, Institute of Biology, State University of CampinasCampinas, Brazil
- *Correspondence: Marcelo Menossi
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Liu X, Chu Z. Genome-wide evolutionary characterization and analysis of bZIP transcription factors and their expression profiles in response to multiple abiotic stresses in Brachypodium distachyon. BMC Genomics 2015. [PMID: 25887221 DOI: 10.1186/s12864-015-1457-1459] [Citation(s) in RCA: 1] [Impact Index Per Article: 0.1] [Reference Citation Analysis] [Abstract] [MESH Headings] [Journal Information] [Subscribe] [Scholar Register] [Indexed: 04/26/2023] Open
Abstract
BACKGROUND Plant basic leucine zipper (bZIP) transcription factors are one of the largest and most diverse gene families and play key roles in regulating diverse stress processes. Brachypodium distachyon is emerging as a widely recognized model plant for the temperate grass family and the herbaceous energy crops, however there is no comprehensive analysis of bZIPs in B. distachyon, especially those involved in stress tolerances. RESULTS In this study, 96 bZIP genes (BdbZIPs) were identified distributing unevenly on each chromosome of B. distachyon, and most of them were scattered in the low CpG content regions. Gene duplications were widespread throughout B. distachyon genome. Evolutionary comparisons suggested B. distachyon and rice's bZIPs had the similar evolutionary patterns. The exon splicing in BdbZIP motifs were more complex and diverse than those in other plant species. We further revealed the potential close relationships between BdbZIP gene expressions and items including gene structure, exon splicing pattern and dimerization features. In addition, multiple stresses expression profile demonstrated that BdbZIPs exhibited significant expression patterns responding to 14 stresses, and those responding to heavy metal treatments showed opposite expression pattern comparing to the treatments of environmental factors and phytohormones. We also screened certain up- and down-regulated BdbZIP genes with fold changes ≥2, which were more sensitive to abiotic stress conditions. CONCLUSIONS BdbZIP genes behaved diverse functional characters and showed discrepant and some regular expression patterns in response to abiotic stresses. Comprehensive analysis indicated these BdbZIPs' expressions were associated not only with gene structure, exon splicing pattern and dimerization feature, but also with abiotic stress treatments. It is possible that our findings are crucial for revealing the potentialities of utilizing these candidate BdbZIPs to improve productivity of grass plants and cereal crops.
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Affiliation(s)
- Xiang Liu
- Shanghai Chenshan Plant Science Research Center, Shanghai Chenshan Botanical Garden, Shanghai Key Laboratory of Plant Functional Genomics and Resources, Shanghai Institutes for Biological Sciences, Chinese Academy of Sciences, 3888 Chenhua Road, 201602, Shanghai, Songjiang, China.
| | - Zhaoqing Chu
- Shanghai Chenshan Plant Science Research Center, Shanghai Chenshan Botanical Garden, Shanghai Key Laboratory of Plant Functional Genomics and Resources, Shanghai Institutes for Biological Sciences, Chinese Academy of Sciences, 3888 Chenhua Road, 201602, Shanghai, Songjiang, China.
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14
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Genome-wide evolutionary characterization and analysis of bZIP transcription factors and their expression profiles in response to multiple abiotic stresses in Brachypodium distachyon. BMC Genomics 2015; 16:227. [PMID: 25887221 PMCID: PMC4393604 DOI: 10.1186/s12864-015-1457-9] [Citation(s) in RCA: 71] [Impact Index Per Article: 7.9] [Reference Citation Analysis] [Abstract] [Track Full Text] [Download PDF] [Figures] [Journal Information] [Subscribe] [Scholar Register] [Received: 08/15/2014] [Accepted: 03/09/2015] [Indexed: 12/31/2022] Open
Abstract
BACKGROUND Plant basic leucine zipper (bZIP) transcription factors are one of the largest and most diverse gene families and play key roles in regulating diverse stress processes. Brachypodium distachyon is emerging as a widely recognized model plant for the temperate grass family and the herbaceous energy crops, however there is no comprehensive analysis of bZIPs in B. distachyon, especially those involved in stress tolerances. RESULTS In this study, 96 bZIP genes (BdbZIPs) were identified distributing unevenly on each chromosome of B. distachyon, and most of them were scattered in the low CpG content regions. Gene duplications were widespread throughout B. distachyon genome. Evolutionary comparisons suggested B. distachyon and rice's bZIPs had the similar evolutionary patterns. The exon splicing in BdbZIP motifs were more complex and diverse than those in other plant species. We further revealed the potential close relationships between BdbZIP gene expressions and items including gene structure, exon splicing pattern and dimerization features. In addition, multiple stresses expression profile demonstrated that BdbZIPs exhibited significant expression patterns responding to 14 stresses, and those responding to heavy metal treatments showed opposite expression pattern comparing to the treatments of environmental factors and phytohormones. We also screened certain up- and down-regulated BdbZIP genes with fold changes ≥2, which were more sensitive to abiotic stress conditions. CONCLUSIONS BdbZIP genes behaved diverse functional characters and showed discrepant and some regular expression patterns in response to abiotic stresses. Comprehensive analysis indicated these BdbZIPs' expressions were associated not only with gene structure, exon splicing pattern and dimerization feature, but also with abiotic stress treatments. It is possible that our findings are crucial for revealing the potentialities of utilizing these candidate BdbZIPs to improve productivity of grass plants and cereal crops.
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15
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Singh RK, Jena SN, Khan S, Yadav S, Banarjee N, Raghuvanshi S, Bhardwaj V, Dattamajumder SK, Kapur R, Solomon S, Swapna M, Srivastava S, Tyagi AK. Development, cross-species/genera transferability of novel EST-SSR markers and their utility in revealing population structure and genetic diversity in sugarcane. Gene 2013; 524:309-29. [PMID: 23587912 DOI: 10.1016/j.gene.2013.03.125] [Citation(s) in RCA: 37] [Impact Index Per Article: 3.4] [Reference Citation Analysis] [Abstract] [Track Full Text] [Journal Information] [Subscribe] [Scholar Register] [Received: 11/22/2012] [Revised: 03/20/2013] [Accepted: 03/27/2013] [Indexed: 12/01/2022]
Abstract
Sugarcane (Saccharum spp. hybrid) with complex polyploid genome requires a large number of informative DNA markers for various applications in genetics and breeding. Despite the great advances in genomic technology, it is observed in several crop species, especially in sugarcane, the availability of molecular tools such as microsatellite markers are limited. Now-a-days EST-SSR markers are preferred to genomic SSR (gSSR) as they represent only the functional part of the genome, which can be easily associated with desired trait. The present study was taken up with a new set of 351 EST-SSRs developed from the 4085 non redundant EST sequences of two Indian sugarcane cultivars. Among these EST-SSRs, TNR containing motifs were predominant with a frequency of 51.6%. Thirty percent EST-SSRs showed homology with annotated protein. A high frequency of SSRs was found in the 5'UTR and in the ORF (about 27%) and a low frequency was observed in the 3'UTR (about 8%). Two hundred twenty-seven EST-SSRs were evaluated, in sugarcane, allied genera of sugarcane and cereals, and 134 of these have revealed polymorphism with a range of PIC value 0.12 to 0.99. The cross transferability rate ranged from 87.0% to 93.4% in Saccharum complex, 80.0% to 87.0% in allied genera, and 76.0% to 80.0% in cereals. Cloning and sequencing of EST-SSR size variant amplicons revealed that the variation in the number of repeat-units was the main source of EST-SSR fragment polymorphism. When 124 sugarcane accessions were analyzed for population structure using model-based approach, seven genetically distinct groups or admixtures thereof were observed in sugarcane. Results of principal coordinate analysis or UPGMA to evaluate genetic relationships delineated also the 124 accessions into seven groups. Thus, a high level of polymorphism adequate genetic diversity and population structure assayed with the EST-SSR markers not only suggested their utility in various applications in genetics and genomics in sugarcane but also enriched the microsatellite marker resources in sugarcane.
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Affiliation(s)
- Ram K Singh
- Indian Institute of Sugarcane Research (ICAR), Rai Bareli Road, Lucknow-226002, U.P., India.
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16
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Li Y, Sun Y, Yang Q, Fang F, Kang J, Zhang T. Isolation and characterization of a gene from Medicago sativa L., encoding a bZIP transcription factor. Mol Biol Rep 2013; 40:1227-39. [PMID: 23096087 DOI: 10.1007/s11033-012-2165-z] [Citation(s) in RCA: 10] [Impact Index Per Article: 0.9] [Reference Citation Analysis] [Abstract] [MESH Headings] [Track Full Text] [Journal Information] [Subscribe] [Scholar Register] [Received: 11/12/2011] [Accepted: 10/08/2012] [Indexed: 10/27/2022]
Abstract
A full-length cDNA of 1,537 nucleotides was cloned from Medicago sativa L. cv. "Zhongmu No. 1" by rapid amplification of cDNA ends. It was designated as MsZIP, encoding a protein of 340 amino acids. The protein molecular weight was 36.43 kDa, and the theoretical isoelectric point was 5.72. The MsZIP preferentially localized in nucleus and have signal peptide. Blast analysis revealed that MsZIP shared the highest homology with some bZIP proteins of M. truncatula. The transcript of MsZIP was strongly enriched in leaf compared with root and stem of mature alfalfa plants. MsZIP was strongly induced by 15 % PEG6000 (polyethylene glycol), 50 μM abscisic acid, 200 mM NaCl, 70 μM gibberellic acid, 5 mM salicylic acid and 200 μM methyl jasmonate. Physiological resistance parameters were measured in the transgenic tobacco. Malondialdehyde content, relative water content, soluble sugar content, soluble protein content and proline content in transgenic tobacco increased compared with non-transgenic tobacco under salt stress or drought stress. The results showed that accumulation of the MsZIP protein in the vegetative tissues of transgenic plants enhanced their tolerance to osmotic pressure stress. These results demonstrate a role for the MsZIP protein in stress protection and suggest the potential of the MsZIP gene for genetic engineering of salt tolerance and drought tolerance.
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MESH Headings
- Amino Acid Sequence
- Basic-Leucine Zipper Transcription Factors/chemistry
- Basic-Leucine Zipper Transcription Factors/genetics
- Basic-Leucine Zipper Transcription Factors/metabolism
- Cell Nucleus/metabolism
- Cloning, Molecular
- DNA, Complementary/genetics
- Droughts
- Gene Expression Regulation, Plant
- Genetic Engineering
- Isoelectric Point
- Medicago sativa/genetics
- Medicago sativa/metabolism
- Molecular Sequence Data
- Molecular Weight
- Onions/cytology
- Onions/genetics
- Onions/metabolism
- Phylogeny
- Plant Proteins/chemistry
- Plant Proteins/genetics
- Plant Proteins/metabolism
- Plants, Genetically Modified/genetics
- Plants, Genetically Modified/physiology
- Protein Transport
- Recombinant Proteins/chemistry
- Recombinant Proteins/genetics
- Recombinant Proteins/metabolism
- Salt Tolerance
- Sequence Analysis, DNA
- Sequence Analysis, Protein
- Sequence Homology, Amino Acid
- Stress, Physiological
- Nicotiana/genetics
- Nicotiana/physiology
- Transcription, Genetic
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Affiliation(s)
- Yan Li
- Institute of Animal Science, Chinese Academy of Agricultural Sciences, No. 2 Yuanmingyuan West Road, Haidian, Beijing, 100193, People's Republic of China.
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17
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Tak H, Mhatre M. Cloning and molecular characterization of a putative bZIP transcription factor VvbZIP23 from Vitis vinifera. PROTOPLASMA 2013; 250:333-45. [PMID: 22610648 DOI: 10.1007/s00709-012-0417-3] [Citation(s) in RCA: 17] [Impact Index Per Article: 1.5] [Reference Citation Analysis] [Abstract] [MESH Headings] [Track Full Text] [Subscribe] [Scholar Register] [Received: 02/13/2012] [Accepted: 05/02/2012] [Indexed: 05/16/2023]
Abstract
The proteins harboring bZIP domains comprise a large family and play key roles in many cellular processes, one of them being tolerance to biotic and abiotic stresses in plants. In the present study, we characterize a putative bZIP transcription factor from Vitis vinifera namely VvbZIP23. Our studies revealed that a GFP fusion of VvbZIP23 is localized in the nucleus showing VvbZIP23 codes for a nuclear localized protein. VvbZIP23 identified by in silico approaches from grapevine DNA databases available in the public domain NCBI is present in a single copy in the grapevine genome as shown by Southern blot analysis. Expression of VvbZIP23 is induced by a wide spectrum of abiotic stresses, including drought, salt, and cold. Exogenous application of signaling chemicals like abscisic acid, methyl viologen, salicylic acid, jasmonic acid, and ethephon also induced expression of VvbZIP23. This shows that VvbZIP23 is involved in regulating a number of stress responses in V. vinifera. The 5' proximal region of VvbZIP23 contains many cis-acting elements, which show induction of VvbZIP23 expression in multiple stress responses. Transcripts of VvbZIP23 were found in many parts of the grapevine plant with the highest expression detected in leaves. Further in silico analysis shows that the open reading frame of VvbZIP23 is 822 bp long and codes for a 273 amino acid long protein having a characteristic bZIP domain in its N-terminal end. Overexpression of VvbZIP23-GFP fusion protein in grapevine callus leads to enhanced transcript levels of genes, homologues of which are reported to be important in regulating many stress conditions.
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Affiliation(s)
- Himanshu Tak
- Plant Cell Culture Technology Section, Nuclear Agriculture & Biotechnology Division, Bhabha Atomic Research Centre, Trombay, Mumbai 400 085, India.
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18
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Santos-Silva LK, Soares-Costa A, Gerald LTS, Meneghin SP, Henrique-Silva F. Recombinant expression and biochemical characterization of sugarcane legumain. PLANT PHYSIOLOGY AND BIOCHEMISTRY : PPB 2012; 57:181-92. [PMID: 22721948 DOI: 10.1016/j.plaphy.2012.05.020] [Citation(s) in RCA: 10] [Impact Index Per Article: 0.8] [Reference Citation Analysis] [Abstract] [MESH Headings] [Track Full Text] [Subscribe] [Scholar Register] [Received: 02/16/2012] [Accepted: 05/17/2012] [Indexed: 05/01/2023]
Abstract
Plant legumains, also termed vacuolar processing enzymes (VPEs), are cysteine peptidases that play key roles in plant development, senescence, programmed cell death and defense against pathogens. Despite the increasing number of reports on plant cysteine peptidases, including VPEs, the characterization of sugarcane VPEs and their inhibition by endogenous cystatins have not yet been described. This is the first report of the biochemical characterization of a sugarcane cysteine peptidase. In this work, a recombinant sugarcane legumain was expressed in Pichia pastoris and characterized. Kinetic studies of the recombinant CaneLEG revealed that this enzyme has the main characteristics of VPEs, such as self-activation and activity under acidic pH. CaneLEG activity was strongly inhibited when incubated with sugarcane cystatin 3 (CaneCPI-3). Quantitative analysis of CaneLEG and CaneCPI-3 gene expression indicated a tissue-specific expression pattern for both genes throughout sugarcane growth, with the strong accumulation of CaneLEG transcripts throughout the internode development. Furthermore, the CaneLEG and CaneCPI-3 genes exhibited up-regulation in plantlets treated with abscisic acid (ABA). These results suggest that CaneCPI-3 may be a potential endogenous inhibitor of CaneLEG and these genes may be involved in plant stress response mediated by ABA. Also, the expression analysis provides clues for the putative involvement of CaneLEG and CaneCPI-3 in sugarcane development and phytohormone response.
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Affiliation(s)
- Ludier K Santos-Silva
- Department of Genetics and Evolution, Federal University of São Carlos, Rodovia Washington Luís, São Carlos SP, Brazil
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19
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Singh RK, Singh RB, Singh SP, Sharma ML. Genes tagging and molecular diversity of red rot susceptible/tolerant sugarcane hybrids using c-DNA and unigene derived markers. World J Microbiol Biotechnol 2011; 28:1669-79. [DOI: 10.1007/s11274-011-0974-1] [Citation(s) in RCA: 7] [Impact Index Per Article: 0.5] [Reference Citation Analysis] [Track Full Text] [Journal Information] [Subscribe] [Scholar Register] [Received: 09/29/2011] [Accepted: 12/02/2011] [Indexed: 10/14/2022]
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20
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Engineering Advantages, Challenges and Status of Sugarcane and other Sugar-Based Biomass Resources. ACTA ACUST UNITED AC 2010. [DOI: 10.1007/978-3-642-13440-1_4] [Citation(s) in RCA: 0] [Impact Index Per Article: 0] [Reference Citation Analysis] [Track Full Text] [Journal Information] [Subscribe] [Scholar Register]
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21
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Gentile A, Da Cruz P, Tavares RG, Krug-Baldacin MG, Menossi M. Molecular characterization of ScTFIIAgamma, encoding the putative TFIIA small subunit from sugarcane. PLANT CELL REPORTS 2010; 29:857-864. [PMID: 20480367 DOI: 10.1007/s00299-010-0871-3] [Citation(s) in RCA: 1] [Impact Index Per Article: 0.1] [Reference Citation Analysis] [Abstract] [MESH Headings] [Track Full Text] [Subscribe] [Scholar Register] [Received: 03/25/2010] [Revised: 04/27/2010] [Accepted: 05/05/2010] [Indexed: 05/29/2023]
Abstract
Transcription mediated by RNA polymerase II depends on a set of different transcription factors to form the pre-initiation complex. TFIIA is involved in the construction of this complex and increases the affinity of TBP for the DNA union region in vitro. In this study, we characterized the ScTFIIAgamma gene, which encodes a homolog of the smaller subunit (gamma) of transcription factor TFIIA in sugarcane. RNA blot analysis showed that ScTFIIAgamma transcripts accumulate in all tissues evaluated, with higher levels in leaf roll and flowers. In situ hybridization showed that ScTFIIAgamma was expressed in different cells of the reproductive meristem. In sugarcane plantlets, methyl jasmonate and absicic acid treatments as well as phosphate starvation had no influence on ScTFIIAgamma transcript accumulation. The subcelullar localization assay demonstrates that ScTFIIAgamma protein is directed to the cell nucleus. The phylogenetic analysis, the expression in several tissues and under different treatments and the nuclear localization are in line with the putative role of ScTFIIAgamma as a subunit of basal transcription factor.
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Affiliation(s)
- Agustina Gentile
- Laboratório de Genoma Funcional, Departamento de Genética, Evolução e Bioagentes, Instituto de Biologia, Universidade Estadual de Campinas, 13083-875 Campinas, São Paulo 6109, Brazil
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22
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Wang Y, Gao C, Liang Y, Wang C, Yang C, Liu G. A novel bZIP gene from Tamarix hispida mediates physiological responses to salt stress in tobacco plants. JOURNAL OF PLANT PHYSIOLOGY 2010; 167:222-30. [PMID: 19853962 DOI: 10.1016/j.jplph.2009.09.008] [Citation(s) in RCA: 88] [Impact Index Per Article: 6.3] [Reference Citation Analysis] [Abstract] [MESH Headings] [Track Full Text] [Subscribe] [Scholar Register] [Received: 04/09/2009] [Revised: 08/31/2009] [Accepted: 09/01/2009] [Indexed: 05/19/2023]
Abstract
Basic leucine zipper proteins (bZIPs) are transcription factors that bind abscisic acid (ABA)-responsive elements (ABREs) and enable plants to withstand adverse environmental conditions. In the present study, a novel bZIP gene, ThbZIP1 was cloned from Tamarix hispida. Expression studies in T. hispida showed differential regulation of ThbZIP1 in response to treatment with NaCl, polyethylene glycol (PEG) 6000, NaHCO(3), and CdCl(2), suggesting that ThbZIP1 is involved in abiotic stress responses. To identify the physiological responses mediated by ThbZIP1, transgenic tobacco plants overexpressing exogenous ThbZIP1 were generated. Various physiological parameters related to salt stress were measured and compared between transgenic and wild type (WT) plants. Our results indicate that overexpression of ThbZIP1 can enhance the activity of both peroxidase (POD) and superoxide dismutase (SOD), and increase the content of soluble sugars and soluble proteins under salt stress conditions. These results suggest that ThbZIP1 contributes to salt tolerance by mediating signaling through multiple physiological pathways. Furthermore, ThbZIP1 confers stress tolerance to plants by enhancing reactive oxygen species (ROS) scavenging, facilitating the accumulation of compatible osmolytes, and inducing and/or enhancing the biosynthesis of soluble proteins.
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Affiliation(s)
- Yucheng Wang
- Key Laboratory of Forest Tree Genetic Improvement and Biotechnology (Northeast Forestry University), Ministry of Education, 26 Hexing Road, Harbin 150040, PR China
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23
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Damaj MB, Beremand PD, Buenrostro-Nava MT, Riedel B, Molina JJ, Kumpatla SP, Thomas TL, Mirkov TE. Reproducible RNA preparation from sugarcane and citrus for functional genomic applications. INTERNATIONAL JOURNAL OF PLANT GENOMICS 2010; 2009:765367. [PMID: 20148085 PMCID: PMC2817868 DOI: 10.1155/2009/765367] [Citation(s) in RCA: 3] [Impact Index Per Article: 0.2] [Reference Citation Analysis] [Abstract] [Track Full Text] [Subscribe] [Scholar Register] [Received: 04/09/2009] [Revised: 09/12/2009] [Accepted: 10/13/2009] [Indexed: 05/09/2023]
Abstract
High-throughput functional genomic procedures depend on the quality of the RNA used. Copurifying molecules can negatively impact the functionality of some plant RNA preparations employed in these procedures. We present a simplified, rapid, and scalable SDS/phenol-based method that provides the high-quantity and -quality RNA required by the newly emerging biotechnology applications. The method is applied to isolating RNA from tissues of two biotechnologically important crop plants, sugarcane and citrus, which provide a challenge due to the presence of fiber, polysaccharides, or secondary metabolites. The RNA isolated by this method is suitable for several downstream applications including northern blot hybridization, microarray analysis, and quantitative RT-PCR. This method has been used in a diverse range of projects ranging from screening plant lines overexpressing mammalian genes to analyzing plant responses to viral infection and defense signaling molecules.
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Affiliation(s)
- Mona B. Damaj
- Department of Plant Pathology and Microbiology, Texas AgriLife Research, Texas A&M System, Weslaco, TX 78596, USA
| | - Phillip D. Beremand
- Laboratory for Functional Genomics, Department of Biology, Texas A&M University, College Station, TX 77843-3258, USA
| | - Marco T. Buenrostro-Nava
- Department of Plant Pathology and Microbiology, Texas AgriLife Research, Texas A&M System, Weslaco, TX 78596, USA
| | - Beth Riedel
- Laboratory for Functional Genomics, Department of Biology, Texas A&M University, College Station, TX 77843-3258, USA
| | - Joe J. Molina
- Department of Plant Pathology and Microbiology, Texas AgriLife Research, Texas A&M System, Weslaco, TX 78596, USA
| | - Siva P. Kumpatla
- Department of Trait Genetics and Technologies, Dow AgroSciences LLC, 9330 Zionsville Road, Indianapolis, IN 46268, USA
| | - Terry L. Thomas
- Laboratory for Functional Genomics, Department of Biology, Texas A&M University, College Station, TX 77843-3258, USA
| | - T. Erik Mirkov
- Department of Plant Pathology and Microbiology, Texas AgriLife Research, Texas A&M System, Weslaco, TX 78596, USA
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Gupta V, Raghuvanshi S, Gupta A, Saini N, Gaur A, Khan MS, Gupta RS, Singh J, Duttamajumder SK, Srivastava S, Suman A, Khurana JP, Kapur R, Tyagi AK. The water-deficit stress- and red-rot-related genes in sugarcane. Funct Integr Genomics 2009; 10:207-14. [DOI: 10.1007/s10142-009-0144-9] [Citation(s) in RCA: 48] [Impact Index Per Article: 3.2] [Reference Citation Analysis] [Track Full Text] [Journal Information] [Subscribe] [Scholar Register] [Received: 05/12/2009] [Revised: 09/16/2009] [Accepted: 09/16/2009] [Indexed: 11/30/2022]
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