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Ren Y, Wu L, Zhong Y, Zhao X, Xu M, Wang J. Transcriptome Analysis Revealed the Paternal Importance to Vegetative Growth Heterosis in Populus. PLANTS (BASEL, SWITZERLAND) 2024; 13:2278. [PMID: 39204714 PMCID: PMC11359908 DOI: 10.3390/plants13162278] [Citation(s) in RCA: 0] [Impact Index Per Article: 0] [Reference Citation Analysis] [Abstract] [Key Words] [Grants] [Track Full Text] [Figures] [Subscribe] [Scholar Register] [Received: 05/20/2024] [Revised: 06/30/2024] [Accepted: 08/14/2024] [Indexed: 09/04/2024]
Abstract
Parental selection is important for heterosis formation during crossbreeding of Populus. However, in poplar hybrids, the effect of parents on vegetative growth heterosis is not well understood. In this study, one female parent (P. simonii XY4) and two male parents (P. nigra OH and P. deltoides × P. nigra BJLY3#) were used to produce two progenies (Hyb1 and Hyb2). Vegetative growth investigation showed that both Hyb1 and Hyb2 performed heterosis in plant growth and ground diameter. The vegetative growth of hybrids was strongly correlated with the male parents but not with the female parents. The gene expression levels in the hybrids were more biased toward the male parents. In Hyb1 and Hyb2, 51.93% and 45.03% of the expressed genes showed the non-additive effect, respectively, and over 65% of the non-additively expressed genes showed the dominant effect. It is noteworthy that genes of paternal expression dominant effect (ELD_♂) account for the majority of dominantly expressed genes, suggesting the paternal contribution to heterosis. KEGG enrichment analysis indicated that a large number of non-additively expressed genes were enriched in the plant hormone signal transduction pathway. WGCNA analysis showed that MEcyan was significantly correlated with the traits of hybrids, and 12 plant hormone signal transduction pathway genes were enriched in this module. Transcription factors (TFs) MYB88, LHY, and TCP4 may be involved in the regulation of these pathway genes. This finding supported that the male parents play an important role in the formation of vegetative growth heterosis of Populus. In addition, the non-additively expressed genes of the signal transduction pathway and the regulation of TFs related to these pathway genes may be one of the reasons for the generation of heterosis.
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Affiliation(s)
- Yuxin Ren
- State Key Laboratory of Tree Genetics and Breeding, Beijing Forestry University, Beijing 100083, China; (Y.R.)
- National Engineering Research Center of Tree Breeding and Ecological Restoration, Beijing Forestry University, Beijing 100083, China
- Key Laboratory of Genetics and Breeding in Forest Trees and Ornamental Plants, Ministry of Education, Beijing Forestry University, Beijing 100083, China
- College of Biological Sciences and Biotechnology, Beijing Forestry University, Beijing 100083, China
| | - Lixia Wu
- State Key Laboratory of Tree Genetics and Breeding, Beijing Forestry University, Beijing 100083, China; (Y.R.)
- National Engineering Research Center of Tree Breeding and Ecological Restoration, Beijing Forestry University, Beijing 100083, China
- Key Laboratory of Genetics and Breeding in Forest Trees and Ornamental Plants, Ministry of Education, Beijing Forestry University, Beijing 100083, China
- College of Biological Sciences and Biotechnology, Beijing Forestry University, Beijing 100083, China
| | - Yuhang Zhong
- State Key Laboratory of Tree Genetics and Breeding, Beijing Forestry University, Beijing 100083, China; (Y.R.)
- National Engineering Research Center of Tree Breeding and Ecological Restoration, Beijing Forestry University, Beijing 100083, China
- Key Laboratory of Genetics and Breeding in Forest Trees and Ornamental Plants, Ministry of Education, Beijing Forestry University, Beijing 100083, China
- College of Biological Sciences and Biotechnology, Beijing Forestry University, Beijing 100083, China
| | - Xinwen Zhao
- Liaoning Provincial Institute of Poplar, Gaizhou 115213, China
| | - Meng Xu
- College of Forestry, Nanjing Forestry University, Nanjing 210037, China
| | - Jun Wang
- State Key Laboratory of Tree Genetics and Breeding, Beijing Forestry University, Beijing 100083, China; (Y.R.)
- National Engineering Research Center of Tree Breeding and Ecological Restoration, Beijing Forestry University, Beijing 100083, China
- Key Laboratory of Genetics and Breeding in Forest Trees and Ornamental Plants, Ministry of Education, Beijing Forestry University, Beijing 100083, China
- College of Biological Sciences and Biotechnology, Beijing Forestry University, Beijing 100083, China
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2
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Banerjee S, Mitra M, Roy S. Study of changes in folding/unfolding properties and stability of Arabidopsis thaliana MYB12 transcription factor following UV-B exposure in vitro. Heliyon 2024; 10:e34189. [PMID: 39071576 PMCID: PMC11279800 DOI: 10.1016/j.heliyon.2024.e34189] [Citation(s) in RCA: 0] [Impact Index Per Article: 0] [Reference Citation Analysis] [Abstract] [Key Words] [Track Full Text] [Download PDF] [Figures] [Journal Information] [Subscribe] [Scholar Register] [Received: 10/02/2023] [Revised: 06/14/2024] [Accepted: 07/04/2024] [Indexed: 07/30/2024] Open
Abstract
Flavonoids mostly protect plant cells from the harmful effects of UV-B radiation from the sun. In plants, the R2R3-subfamily of the MYB transcription factor, MYB12, is a key inducer of the biosynthesis of flavonoids. Our study involves the biophysical characterization of Arabidopsis thaliana MYB12 protein (AtMYB12) under UV-B exposure in vitro. Tryptophan fluorescence studies using recombinant full-length AtMYB12 (native) and the N-terminal truncated versions (first N-terminal MYB domain absent in AtMYB12Δ1, and both the first and second N-terminal MYB domains absent in AtMYB12Δ2) have revealed prominent alteration in the tryptophan microenvironment in AtMYB12Δ1 and AtMYB12Δ2 protein as a result of UV-B exposure as compared with the native AtMYB12. Bis-ANS binding assay and urea-mediated denaturation profiling showed an appreciable change in the structural conformation in AtMYB12Δ1 and AtMYB12Δ2 proteins as compared with the native AtMYB12 protein following UV-B irradiation. UV-B-treated AtMYB12Δ2 showed a higher predisposition of aggregate formation in vitro. CD spectral analyses revealed a decrease in α-helix percentage with a concomitant increase in random coiled structure formation in AtMYB12Δ1 and AtMYB12Δ2 as compared to native AtMYB12 following UV-B treatment. Overall, these findings highlight the critical function of the N-terminal MYB domains in maintaining the stability and structural conformation of the AtMYB12 protein under UV-B stress in vitro.
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Affiliation(s)
- Samrat Banerjee
- Department of Botany, UGC Centre for Advance Study, The University of Burdwan, Golapbag Campus, Burdwan, 713104, West Bengal, India
| | | | - Sujit Roy
- Department of Botany, UGC Centre for Advance Study, The University of Burdwan, Golapbag Campus, Burdwan, 713104, West Bengal, India
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3
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Wang L, Chang C. Stomatal improvement for crop stress resistance. JOURNAL OF EXPERIMENTAL BOTANY 2024; 75:1823-1833. [PMID: 38006251 DOI: 10.1093/jxb/erad477] [Citation(s) in RCA: 0] [Impact Index Per Article: 0] [Reference Citation Analysis] [Abstract] [Key Words] [Grants] [Track Full Text] [Subscribe] [Scholar Register] [Received: 07/13/2023] [Accepted: 11/23/2023] [Indexed: 11/26/2023]
Abstract
The growth and yield of crop plants are threatened by environmental challenges such as water deficit, soil flooding, high salinity, and extreme temperatures, which are becoming increasingly severe under climate change. Stomata contribute greatly to plant adaptation to stressful environments by governing transpirational water loss and photosynthetic gas exchange. Increasing evidence has revealed that stomata formation is shaped by transcription factors, signaling peptides, and protein kinases, which could be exploited to improve crop stress resistance. The past decades have seen unprecedented progress in our understanding of stomata formation, but most of these advances have come from research on model plants. This review highlights recent research in stomata formation in crops and its multifaceted functions in abiotic stress tolerance. Current strategies, limitations, and future directions for harnessing stomatal development to improve crop stress resistance are discussed.
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Affiliation(s)
- Lu Wang
- College of Life Sciences, Qingdao University, Qingdao, Shandong, China
| | - Cheng Chang
- College of Life Sciences, Qingdao University, Qingdao, Shandong, China
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Zhang F, Liu Y, Ma J, Su S, Chen L, Cheng Y, Buter S, Zhao X, Yi L, Lu Z. Analyzing the Diversity of MYB Family Response Strategies to Drought Stress in Different Flax Varieties Based on Transcriptome Data. PLANTS (BASEL, SWITZERLAND) 2024; 13:710. [PMID: 38475556 DOI: 10.3390/plants13050710] [Citation(s) in RCA: 0] [Impact Index Per Article: 0] [Reference Citation Analysis] [Abstract] [Key Words] [Track Full Text] [Subscribe] [Scholar Register] [Received: 11/28/2023] [Revised: 02/20/2024] [Accepted: 02/28/2024] [Indexed: 03/14/2024]
Abstract
The MYB transcription factor family has numerous members, and is involved in biological activities, such as ABA signaling, which plays an important role in a plant's resistance to abiotic stresses such as drought. However, the diversity of MYB members that respond to drought stress and their regulatory mechanisms in different flax varieties were unclear. In this study, we obtained 855.69 Gb of clean data from 120 flax root samples from 20 flax (Linum usitatissimum L.) varieties, assembled 92,861 transcripts, and identified 434 MYB family members in each variety. The expression profiles of the MYB transcription factor family from 20 flax varieties under drought stress were analyzed. The results indicated that there are four strategies by which the MYB family responds to drought stress in these 20 flax varieties, each of which has its own specific processes, such as development, reproduction, and localization processes. The four strategies also include common biological processes, such as stimulus responses, metabolic processes, and biological regulation. The WGCNA method was subsequently employed to identify key members of the MYB family involved in response strategies to drought stress. The results demonstrated that a 1R-MYB subfamily gene co-expression network is significantly related to the gibberellin response and cytokinin-activated signaling pathway processes in the 'Strategy 4' for MYB family response to drought, identifying core genes such as Lus.scaffold70.240. Our results showed a diversity of MYB family responses to drought stress within flax varieties, and these results contribute to deciphering the mechanisms of the MYB family regulation of drought resistance. This will promote the more accurate breeding development of flax to adapt to agricultural production under drought conditions.
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Affiliation(s)
- Fan Zhang
- School of Life Science, Inner Mongolia University, Hohhot 010020, China
- Inner Mongolia Academy of Agricultural & Animal Husbandry Sciences, Hohhot 010031, China
- Key Laboratory of Black Soil Protection and Utilization, Ministry of Agriculture and Rural Areas, Inner Mongolia Key Laboratory of Degradation Farmland Ecological Remediation and Pollution Control, Inner Mongolia Conservation Tillage Engineering Technology Research Center, Hohhot 010031, China
| | - Ying Liu
- School of Life Science, Inner Mongolia University, Hohhot 010020, China
- Inner Mongolia Academy of Agricultural & Animal Husbandry Sciences, Hohhot 010031, China
- Key Laboratory of Black Soil Protection and Utilization, Ministry of Agriculture and Rural Areas, Inner Mongolia Key Laboratory of Degradation Farmland Ecological Remediation and Pollution Control, Inner Mongolia Conservation Tillage Engineering Technology Research Center, Hohhot 010031, China
| | - Jie Ma
- School of Life Science, Inner Mongolia University, Hohhot 010020, China
- Inner Mongolia Academy of Agricultural & Animal Husbandry Sciences, Hohhot 010031, China
- Key Laboratory of Black Soil Protection and Utilization, Ministry of Agriculture and Rural Areas, Inner Mongolia Key Laboratory of Degradation Farmland Ecological Remediation and Pollution Control, Inner Mongolia Conservation Tillage Engineering Technology Research Center, Hohhot 010031, China
| | - Shaofeng Su
- Inner Mongolia Academy of Agricultural & Animal Husbandry Sciences, Hohhot 010031, China
- Key Laboratory of Black Soil Protection and Utilization, Ministry of Agriculture and Rural Areas, Inner Mongolia Key Laboratory of Degradation Farmland Ecological Remediation and Pollution Control, Inner Mongolia Conservation Tillage Engineering Technology Research Center, Hohhot 010031, China
| | - Liyu Chen
- Inner Mongolia Academy of Agricultural & Animal Husbandry Sciences, Hohhot 010031, China
- Key Laboratory of Black Soil Protection and Utilization, Ministry of Agriculture and Rural Areas, Inner Mongolia Key Laboratory of Degradation Farmland Ecological Remediation and Pollution Control, Inner Mongolia Conservation Tillage Engineering Technology Research Center, Hohhot 010031, China
| | - Yuchen Cheng
- Inner Mongolia Academy of Agricultural & Animal Husbandry Sciences, Hohhot 010031, China
- Key Laboratory of Black Soil Protection and Utilization, Ministry of Agriculture and Rural Areas, Inner Mongolia Key Laboratory of Degradation Farmland Ecological Remediation and Pollution Control, Inner Mongolia Conservation Tillage Engineering Technology Research Center, Hohhot 010031, China
| | - Siqin Buter
- Inner Mongolia Academy of Agricultural & Animal Husbandry Sciences, Hohhot 010031, China
- Key Laboratory of Black Soil Protection and Utilization, Ministry of Agriculture and Rural Areas, Inner Mongolia Key Laboratory of Degradation Farmland Ecological Remediation and Pollution Control, Inner Mongolia Conservation Tillage Engineering Technology Research Center, Hohhot 010031, China
| | - Xiaoqing Zhao
- School of Life Science, Inner Mongolia University, Hohhot 010020, China
- Inner Mongolia Academy of Agricultural & Animal Husbandry Sciences, Hohhot 010031, China
- Key Laboratory of Black Soil Protection and Utilization, Ministry of Agriculture and Rural Areas, Inner Mongolia Key Laboratory of Degradation Farmland Ecological Remediation and Pollution Control, Inner Mongolia Conservation Tillage Engineering Technology Research Center, Hohhot 010031, China
| | - Liuxi Yi
- Inner Mongolia Academy of Agricultural & Animal Husbandry Sciences, Hohhot 010031, China
- Agricultural College, Inner Mongolia Agricultural University, Hohhot 010019, China
| | - Zhanyuan Lu
- School of Life Science, Inner Mongolia University, Hohhot 010020, China
- Inner Mongolia Academy of Agricultural & Animal Husbandry Sciences, Hohhot 010031, China
- Key Laboratory of Black Soil Protection and Utilization, Ministry of Agriculture and Rural Areas, Inner Mongolia Key Laboratory of Degradation Farmland Ecological Remediation and Pollution Control, Inner Mongolia Conservation Tillage Engineering Technology Research Center, Hohhot 010031, China
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Zhang Z, Yuan L, Dang J, Zhang Y, Wen Y, Du Y, Liang Y, Wang Y, Liu T, Li T, Hu X. 5-Aminolevulinic acid improves cold resistance through regulation of SlMYB4/SlMYB88-SlGSTU43 module to scavenge reactive oxygen species in tomato. HORTICULTURE RESEARCH 2024; 11:uhae026. [PMID: 38495031 PMCID: PMC10940124 DOI: 10.1093/hr/uhae026] [Citation(s) in RCA: 0] [Impact Index Per Article: 0] [Reference Citation Analysis] [Abstract] [Track Full Text] [Figures] [Subscribe] [Scholar Register] [Received: 10/11/2023] [Accepted: 01/14/2024] [Indexed: 03/19/2024]
Abstract
Cold stress severely affects the growth and quality of tomato. 5-Aminolevulinic acid (ALA) can effectively improve tomato's cold stress tolerance. In this study, a tomato glutathione S-transferase gene, SlGSTU43, was identified. Results showed that ALA strongly induced the expression of SlGSTU43 under cold stress. SlGSTU43-overexpressing lines showed increased resistance to cold stress through an enhanced ability to scavenge reactive oxygen species. On the contrary, slgstu43 mutant lines were sensitive to cold stress, and ALA did not improve their cold stress tolerance. Thus, SlGSTU43 is a key gene in the process of ALA improving tomato cold tolerance. Through yeast library screening, SlMYB4 and SlMYB88 were preliminarily identified as transcription factors that bind to the SlGSTU43 promoter. Electrophoretic mobility shift, yeast one-hybrid, dual luciferase, and chromatin immunoprecipitation assays experiments verified that SlMYB4 and SlMYB88 can bind to the SlGSTU43 promoter. Further experiments showed that SlMYB4 and SlMYB88 are involved in the process of ALA-improving tomato's cold stress tolerance and they positively regulate the expression of SlGSTU43. The findings provide new insights into the mechanism by which ALA improves cold stress tolerance. SlGSTU43, as a valuable gene, could be added to the cold-responsive gene repository. Subsequently, it could be used in genetic engineering to enhance the cold tolerance of tomato.
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Affiliation(s)
- Zhengda Zhang
- College of Horticulture, Northwest A&F University, Yangling, Shaanxi 712100, China
- Key Laboratory of Protected Horticulture Engineering in Northwest, Ministry of Agriculture and Rural Affairs, Yangling, Shaanxi 712100, China
- Shaanxi Protected Agriculture Research Centre, Yangling, Shaanxi 712100, China
| | - Luqiao Yuan
- College of Horticulture, Northwest A&F University, Yangling, Shaanxi 712100, China
- Key Laboratory of Protected Horticulture Engineering in Northwest, Ministry of Agriculture and Rural Affairs, Yangling, Shaanxi 712100, China
- Shaanxi Protected Agriculture Research Centre, Yangling, Shaanxi 712100, China
| | - Jiao Dang
- College of Horticulture, Northwest A&F University, Yangling, Shaanxi 712100, China
- Key Laboratory of Protected Horticulture Engineering in Northwest, Ministry of Agriculture and Rural Affairs, Yangling, Shaanxi 712100, China
- Shaanxi Protected Agriculture Research Centre, Yangling, Shaanxi 712100, China
| | - Yuhui Zhang
- College of Horticulture, Northwest A&F University, Yangling, Shaanxi 712100, China
- Key Laboratory of Protected Horticulture Engineering in Northwest, Ministry of Agriculture and Rural Affairs, Yangling, Shaanxi 712100, China
- Shaanxi Protected Agriculture Research Centre, Yangling, Shaanxi 712100, China
| | - Yongshuai Wen
- College of Horticulture, Northwest A&F University, Yangling, Shaanxi 712100, China
- Key Laboratory of Protected Horticulture Engineering in Northwest, Ministry of Agriculture and Rural Affairs, Yangling, Shaanxi 712100, China
- Shaanxi Protected Agriculture Research Centre, Yangling, Shaanxi 712100, China
| | - Yu Du
- College of Horticulture, Northwest A&F University, Yangling, Shaanxi 712100, China
| | - Yufei Liang
- College of Horticulture, Northwest A&F University, Yangling, Shaanxi 712100, China
| | - Ya Wang
- College of Horticulture, Northwest A&F University, Yangling, Shaanxi 712100, China
| | - Tao Liu
- College of Horticulture, Shenyang Agricultural University, Shenyang 110866, China
| | - Tianlai Li
- College of Horticulture, Shenyang Agricultural University, Shenyang 110866, China
| | - Xiaohui Hu
- College of Horticulture, Northwest A&F University, Yangling, Shaanxi 712100, China
- Key Laboratory of Protected Horticulture Engineering in Northwest, Ministry of Agriculture and Rural Affairs, Yangling, Shaanxi 712100, China
- Shaanxi Protected Agriculture Research Centre, Yangling, Shaanxi 712100, China
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6
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Fang L, Wang Z, Su L, Gong L, Xin H. Vitis Myb14 confer cold and drought tolerance by activating lipid transfer protein genes expression and reactive oxygen species scavenge. Gene 2024; 890:147792. [PMID: 37714279 DOI: 10.1016/j.gene.2023.147792] [Citation(s) in RCA: 0] [Impact Index Per Article: 0] [Reference Citation Analysis] [Abstract] [Key Words] [Track Full Text] [Journal Information] [Subscribe] [Scholar Register] [Received: 02/24/2023] [Revised: 09/04/2023] [Accepted: 09/08/2023] [Indexed: 09/17/2023]
Abstract
The R2R3 Myb transcription factor exhibits a wide range of functions and participates in various biological processes in plant development, secondary metabolism, and abiotic stress tolerance, among others. Vitis Myb14 initially identified for its involvement in resveratrol synthesis in grapevines. In this study, we investigate its role in abiotic stress tolerance. Significant differences in expression were observed between two grape varieties, Vitis amurensis (Cold-hardy) and V. vinifera (Cold-sentitive), under abiotic and hormone treatments. Both VvMyb14 and VaMyb14 demonstrated responsiveness to cold, drought and high salt treatment, but VaMyb14 exhibited a quicker and more pronounced response. To investigate further, we overexpressed VaMyb14 in A. thalina and found that VaMyb14 OE plants showed significantly enhanced cold and drought tolerance compared to wild-type plants. Additionally, the transgenic lines exhibited increased antioxidant enzyme activity, particularly POD activity, and reduced MDA content. Microarray analysis of VaMyb14 OE plants revealed up-regulation of several ABA metabolism and signal transduction genes, including several LTPs, PP2Cs, RD29B, COR78 and other structural genes, indicating that VaMyb14 has the capacity to reprogram a significant signaling pathway. Furthermore, comparative mRNA sequencing profiling of 35S:VaMyb14 grapevine callus indicated its involvement its function involved in ROS scavenging and ABA signaling. These findings collectively demonstrate that Vitis Myb14 serves as a critical regulator in grapevine stress responses, contributing to improved defense against necrotrophic pathogens, enhanced phytoalexin resveratrol production, and increased drought or cold tolerance.
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Affiliation(s)
| | - Zeming Wang
- Beijing Key Laboratory of Grape Sciences and Enology, Laboratory of Plant Resources, Institute of Botany, Chinese Academy of Sciences, Beijing, China; Key Laboratory of Plant Germplasm Enhancement and Specialty Agriculture, Wuhan Botanical Garden/Sino-Africa Joint Research Center, Chinese Academy of Sciences, Wuhan, China.
| | - Lingye Su
- Key Laboratory of Plant Germplasm Enhancement and Specialty Agriculture, Wuhan Botanical Garden/Sino-Africa Joint Research Center, Chinese Academy of Sciences, Wuhan, China.
| | - Linzhong Gong
- Institute of Fruit Trees and Tea, Hubei Academy of Agricultural Sciences, Wuhan, China.
| | - Haiping Xin
- Key Laboratory of Plant Germplasm Enhancement and Specialty Agriculture, Wuhan Botanical Garden/Sino-Africa Joint Research Center, Chinese Academy of Sciences, Wuhan, China.
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Long T, Yang F, Chen Z, Xing Y, Tang X, Chen B, Cui W, Rodriguez LG, Wang L, Gao Y, Yao Y. Overexpression of PtoMYB99 diminishes poplar tolerance to osmotic stress by suppressing ABA and JA biosynthesis. JOURNAL OF PLANT PHYSIOLOGY 2024; 292:154149. [PMID: 38064888 DOI: 10.1016/j.jplph.2023.154149] [Citation(s) in RCA: 0] [Impact Index Per Article: 0] [Reference Citation Analysis] [Abstract] [Key Words] [MESH Headings] [Track Full Text] [Subscribe] [Scholar Register] [Received: 07/14/2023] [Revised: 11/09/2023] [Accepted: 11/28/2023] [Indexed: 02/10/2024]
Abstract
Drought poses a serious challenge to sustained plant growth and crop yields in the context of global climate change. Drought tolerance in poplars and their underlying mechanisms still remain largely unknown. In this article, we investigated the overexpression of PtoMYB99 - both a drought and abscisic acid (ABA) induced gene constraining drought tolerance in poplars (as compared with wild type poplars). First, we found that PtoMYB99-OE lines exhibited increased stomatal opening and conductance, higher transpiration and photosynthetic rates, as well as reduced levels of ABA and jasmonic acid (JA). Second, PtoMYB99-OE lines accumulated more reactive oxygen species (ROS), including H2O2 and O2-, as well as malonaldehyde (MDA), proline, and soluble sugar under osmotic stress; conversely, the activity of antioxidant enzymes (SOD, POD, and CAT), was weakened in the PtoMYB99-OE lines. Third, the expression of ABA biosynthetic genes, PtoNCED3.1 and PtoNCED3.2, as well as JA biosynthetic genes, PtoOPR3.1 and PtoOPR3.2, was significantly reduced in the PtoMYB99-OE lines under both normal conditions and osmotic stress. Based on our results, we conclude that the overexpression of PtoMYB99 compromises tolerance to osmotic stress in poplar. These findings contribute to the understanding of the role of the MYB genes in drought stress and the biosynthesis of ABA and JA.
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Affiliation(s)
- Tao Long
- School of Life Science and Engineering, Southwest University of Science and Technology, 621010, Mianyang, China
| | - Fengming Yang
- School of Life Science and Engineering, Southwest University of Science and Technology, 621010, Mianyang, China
| | - Zihao Chen
- School of Life Science and Engineering, Southwest University of Science and Technology, 621010, Mianyang, China
| | - Yuhang Xing
- School of Life Science and Engineering, Southwest University of Science and Technology, 621010, Mianyang, China
| | - Xia Tang
- School of Life Science and Engineering, Southwest University of Science and Technology, 621010, Mianyang, China
| | - Banglan Chen
- School of Life Science and Engineering, Southwest University of Science and Technology, 621010, Mianyang, China
| | - Wenli Cui
- School of Life Science and Engineering, Southwest University of Science and Technology, 621010, Mianyang, China
| | - Lucas Gutierrez Rodriguez
- School of Life Science and Engineering, Southwest University of Science and Technology, 621010, Mianyang, China
| | - Lijun Wang
- School of Life Science and Engineering, Southwest University of Science and Technology, 621010, Mianyang, China
| | - Yongfeng Gao
- School of Life Science and Engineering, Southwest University of Science and Technology, 621010, Mianyang, China.
| | - Yinan Yao
- School of Life Science and Engineering, Southwest University of Science and Technology, 621010, Mianyang, China.
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8
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Zhang J, Zhang Y, Feng C. Genome-Wide Analysis of MYB Genes in Primulina eburnea (Hance) and Identification of Members in Response to Drought Stress. Int J Mol Sci 2023; 25:465. [PMID: 38203634 PMCID: PMC10778706 DOI: 10.3390/ijms25010465] [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: 11/14/2023] [Revised: 12/24/2023] [Accepted: 12/28/2023] [Indexed: 01/12/2024] Open
Abstract
Due to periodic water deficiency in karst environments, Primulina eburnea experiences sporadic drought stress in its habitat. Despite being one of the largest gene families and functionally diverse in terms of plant growth and development, MYB transcription factors in P. eburnea have not been studied. Here, a total of 230 MYB genes were identified in P. eburnea, including 67 1R-MYB, 155 R2R3-MYB, six 3R-MYB, and two 4R-MYB genes. The R2R3-type PebMYB genes could be classified into 16 subgroups, while the remaining PebMYB genes (1R-MYB, 3R-MYB, and 4R-MYB genes) were divided into 10 subgroups. Notably, the results of the phylogenetic analysis were further supported by the motif and gene structure analysis, which showed that individuals in the same subgroup had comparable motif and structure organization. Additionally, gene duplication and synteny analyses were performed to better understand the evolution of PebMYB genes, and 291 pairs of segmental duplicated genes were found. Moreover, RNA-seq analysis revealed that the PebMYB genes could be divided into five groups based on their expression characteristics. Furthermore, 11 PebMYB genes that may be involved in drought stress response were identified through comparative analysis with Arabidopsis thaliana. Notably, seven of these genes (PebMYB3, PebMYB13, PebMYB17, PebMYB51, PebMYB142, PebMYB69, and PebMYB95) exhibited significant differences in expression between the control and drought stress treatments, suggesting that they may play important roles in drought stress response. These findings clarified the characteristics of the MYB gene family in P. eburnea, augmenting our comprehension of their potential roles in drought stress adaptation.
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Affiliation(s)
- Jie Zhang
- Jiangxi Provincial Key Laboratory of Ex Situ Plant Conservation and Utilization, Lushan Botanical Garden, Chinese Academy of Sciences, Jiujiang 332900, China; (J.Z.); (Y.Z.)
| | - Yi Zhang
- Jiangxi Provincial Key Laboratory of Ex Situ Plant Conservation and Utilization, Lushan Botanical Garden, Chinese Academy of Sciences, Jiujiang 332900, China; (J.Z.); (Y.Z.)
- School of Life Sciences, Nanchang University, Nanchang 330031, China
| | - Chen Feng
- Jiangxi Provincial Key Laboratory of Ex Situ Plant Conservation and Utilization, Lushan Botanical Garden, Chinese Academy of Sciences, Jiujiang 332900, China; (J.Z.); (Y.Z.)
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9
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Liu Q, Wang F, Li P, Yu G, Zhang X. Overexpression of Lolium multiflorum LmMYB1 Enhances Drought Tolerance in Transgenic Arabidopsis. Int J Mol Sci 2023; 24:15280. [PMID: 37894960 PMCID: PMC10607481 DOI: 10.3390/ijms242015280] [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: 09/11/2023] [Revised: 10/08/2023] [Accepted: 10/12/2023] [Indexed: 10/29/2023] Open
Abstract
Lolium multiflorum is one of the world-famous forage grasses with rich biomass, fast growth rate and good nutritional quality. However, its growth and forage yield are often affected by drought, which is a major natural disaster all over the world. MYB transcription factors have some specific roles in response to drought stress, such as regulation of stomatal development and density, control of cell wall and root development. However, the biological function of MYB in L. multiflorum remains unclear. Previously, we elucidated the role of LmMYB1 in enhancing osmotic stress resistance in Saccharomyces cerevisiae. Here, this study elucidates the biological function of LmMYB1 in enhancing plant drought tolerance through an ABA-dependent pathway involving the regulation of cell wall development and stomatal density. After drought stress and ABA stress, the expression of LmMYB1 in L. multiflorum was significantly increased. Overexpression of LmMYB1 increased the survival rate of Arabidopsis thaliana under drought stress. Under drought conditions, expression levels of drought-responsive genes such as AtRD22, AtRAB and AtAREB were up-regulated in OE compared with those in WT. Further observation showed that the stomatal density of OE was reduced, which was associated with the up-regulated expression of cell wall-related pathway genes in the RNA-Seq results. In conclusion, this study confirmed the biological function of LmMYB1 in improving drought tolerance by mediating cell wall development through the ABA-dependent pathway and thereby affecting stomatal density.
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Affiliation(s)
- Qiuxu Liu
- College of Grassland Science and Technology, Sichuan Agricultural University, Chengdu 611130, China; (Q.L.); (F.W.); (P.L.)
- Institute of Agricultural Resources and Environment, Sichuan Academy of Agricultural Sciences, Chengdu 610066, China
| | - Fangyan Wang
- College of Grassland Science and Technology, Sichuan Agricultural University, Chengdu 611130, China; (Q.L.); (F.W.); (P.L.)
| | - Peng Li
- College of Grassland Science and Technology, Sichuan Agricultural University, Chengdu 611130, China; (Q.L.); (F.W.); (P.L.)
| | - Guohui Yu
- College of Grassland Science and Technology, Sichuan Agricultural University, Chengdu 611130, China; (Q.L.); (F.W.); (P.L.)
| | - Xinquan Zhang
- College of Grassland Science and Technology, Sichuan Agricultural University, Chengdu 611130, China; (Q.L.); (F.W.); (P.L.)
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10
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Rodrigues M, Forestan C, Ravazzolo L, Hugueney P, Baltenweck R, Rasori A, Cardillo V, Carraro P, Malagoli M, Brizzolara S, Quaggiotti S, Porro D, Meggio F, Bonghi C, Battista F, Ruperti B. Metabolic and Molecular Rearrangements of Sauvignon Blanc ( Vitis vinifera L.) Berries in Response to Foliar Applications of Specific Dry Yeast. PLANTS (BASEL, SWITZERLAND) 2023; 12:3423. [PMID: 37836164 PMCID: PMC10574919 DOI: 10.3390/plants12193423] [Citation(s) in RCA: 0] [Impact Index Per Article: 0] [Reference Citation Analysis] [Abstract] [Key Words] [Grants] [Track Full Text] [Subscribe] [Scholar Register] [Received: 07/25/2023] [Revised: 09/18/2023] [Accepted: 09/22/2023] [Indexed: 10/15/2023]
Abstract
Dry yeast extracts (DYE) are applied to vineyards to improve aromatic and secondary metabolic compound content and wine quality; however, systematic information on the underpinning molecular mechanisms is lacking. This work aimed to unravel, through a systematic approach, the metabolic and molecular responses of Sauvignon Blanc berries to DYE treatments. To accomplish this, DYE spraying was performed in a commercial vineyard for two consecutive years. Berries were sampled at several time points after the treatment, and grapes were analyzed for sugars, acidity, free and bound aroma precursors, amino acids, and targeted and untargeted RNA-Seq transcriptional profiles. The results obtained indicated that the DYE treatment did not interfere with the technological ripening parameters of sugars and acidity. Some aroma precursors, including cys-3MH and GSH-3MH, responsible for the typical aromatic nuances of Sauvignon Blanc, were stimulated by the treatment during both vintages. The levels of amino acids and the global RNA-seq transcriptional profiles indicated that DYE spraying upregulated ROS homeostatic and thermotolerance genes, as well as ethylene and jasmonic acid biosynthetic genes, and activated abiotic and biotic stress responses. Overall, the data suggested that the DYE reduced berry oxidative stress through the regulation of specific subsets of metabolic and hormonal pathways.
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Affiliation(s)
- Marta Rodrigues
- Department of Agronomy, Food, Natural Resources, Animals and Environment (DAFNAE), University of Padova, 35020 Padova, Italy; (M.R.); (L.R.); (A.R.); (V.C.); (P.C.); (M.M.); (S.Q.); (F.M.); (C.B.)
| | - Cristian Forestan
- Department of Agricultural and Food Sciences, University of Bologna, 40127 Bologna, Italy;
| | - Laura Ravazzolo
- Department of Agronomy, Food, Natural Resources, Animals and Environment (DAFNAE), University of Padova, 35020 Padova, Italy; (M.R.); (L.R.); (A.R.); (V.C.); (P.C.); (M.M.); (S.Q.); (F.M.); (C.B.)
| | - Philippe Hugueney
- National Research Institute for Agriculture, Food and Environment (INRAE), SVQV UMR A1131, University of Strasbourg, 67081 Strasbourg, France; (P.H.); (R.B.)
| | - Raymonde Baltenweck
- National Research Institute for Agriculture, Food and Environment (INRAE), SVQV UMR A1131, University of Strasbourg, 67081 Strasbourg, France; (P.H.); (R.B.)
| | - Angela Rasori
- Department of Agronomy, Food, Natural Resources, Animals and Environment (DAFNAE), University of Padova, 35020 Padova, Italy; (M.R.); (L.R.); (A.R.); (V.C.); (P.C.); (M.M.); (S.Q.); (F.M.); (C.B.)
| | - Valerio Cardillo
- Department of Agronomy, Food, Natural Resources, Animals and Environment (DAFNAE), University of Padova, 35020 Padova, Italy; (M.R.); (L.R.); (A.R.); (V.C.); (P.C.); (M.M.); (S.Q.); (F.M.); (C.B.)
| | - Pietro Carraro
- Department of Agronomy, Food, Natural Resources, Animals and Environment (DAFNAE), University of Padova, 35020 Padova, Italy; (M.R.); (L.R.); (A.R.); (V.C.); (P.C.); (M.M.); (S.Q.); (F.M.); (C.B.)
| | - Mario Malagoli
- Department of Agronomy, Food, Natural Resources, Animals and Environment (DAFNAE), University of Padova, 35020 Padova, Italy; (M.R.); (L.R.); (A.R.); (V.C.); (P.C.); (M.M.); (S.Q.); (F.M.); (C.B.)
| | - Stefano Brizzolara
- Crop Science Research Center, Scuola Superiore Sant’Anna, 56127 Pisa, Italy;
| | - Silvia Quaggiotti
- Department of Agronomy, Food, Natural Resources, Animals and Environment (DAFNAE), University of Padova, 35020 Padova, Italy; (M.R.); (L.R.); (A.R.); (V.C.); (P.C.); (M.M.); (S.Q.); (F.M.); (C.B.)
| | - Duilio Porro
- Technology Transfer Centre, Edmund Mach Foundation, Via E. Mach 1, 38010 San Michele all ‘Adige, Italy;
| | - Franco Meggio
- Department of Agronomy, Food, Natural Resources, Animals and Environment (DAFNAE), University of Padova, 35020 Padova, Italy; (M.R.); (L.R.); (A.R.); (V.C.); (P.C.); (M.M.); (S.Q.); (F.M.); (C.B.)
- Interdepartmental Research Centre for Viticulture and Enology (CIRVE), University of Padova, Via XXVIII Aprile 14, Conegliano, 31015 Treviso, Italy
| | - Claudio Bonghi
- Department of Agronomy, Food, Natural Resources, Animals and Environment (DAFNAE), University of Padova, 35020 Padova, Italy; (M.R.); (L.R.); (A.R.); (V.C.); (P.C.); (M.M.); (S.Q.); (F.M.); (C.B.)
- Interdepartmental Research Centre for Viticulture and Enology (CIRVE), University of Padova, Via XXVIII Aprile 14, Conegliano, 31015 Treviso, Italy
| | | | - Benedetto Ruperti
- Department of Agronomy, Food, Natural Resources, Animals and Environment (DAFNAE), University of Padova, 35020 Padova, Italy; (M.R.); (L.R.); (A.R.); (V.C.); (P.C.); (M.M.); (S.Q.); (F.M.); (C.B.)
- Interdepartmental Research Centre for Viticulture and Enology (CIRVE), University of Padova, Via XXVIII Aprile 14, Conegliano, 31015 Treviso, Italy
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11
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Ning C, Yang Y, Chen Q, Zhao W, Zhou X, He L, Li L, Zong D, Chen J. An R2R3 MYB transcription factor PsFLP regulates the symmetric division of guard mother cells during stomatal development in Pisum sativum. PHYSIOLOGIA PLANTARUM 2023; 175:e13943. [PMID: 37260122 DOI: 10.1111/ppl.13943] [Citation(s) in RCA: 0] [Impact Index Per Article: 0] [Reference Citation Analysis] [Abstract] [MESH Headings] [Grants] [Track Full Text] [Subscribe] [Scholar Register] [Received: 03/17/2023] [Revised: 05/03/2023] [Accepted: 05/26/2023] [Indexed: 06/02/2023]
Abstract
MYB transcriptional regulators belong to one of the most significant transcription factors families in plants, among which R2R3-MYB transcription factors are involved in plant growth and development, hormone signal transduction, and stress response. Two R2R3-MYB transcription factors, FLP and its paralogous AtMYB88, redundantly regulate the symmetrical division of guard mother cells (GMCs), and abiotic stress response in Arabidopsis thaliana. Only one orthologue gene of FLP was identified in pea (Pisum sativum FLP; PsFLP). In this study, we explored the gene function of PsFLP by virus-induced gene silencing (VIGS) technology. The phenotypic analysis displayed that the silencing of PsFLP expression led to the abnormal development of stomata and the emergence of multiple guard cells tightly united. In addition, the abnormal stomata of flp could be fully rescued by PsFLP driven by the FLP promoter. In conclusion, the results showed that PsFLP plays a conservative negative role in regulating the symmetric division of GMC during stomatal development. Based on real-time quantitative PCR, the relative expressions of AAO3, NCED3, and SnRK2.3 significantly increased in the flp pFLP::PsFLP plants compared to mutant, indicating that PsFLP might be involved in drought stress response. Thus, PsFLP regulates the genes related to cell cycle division during the stomatal development of peas and participates in response to drought stress. The study provides a basis for further research on its function and application in leguminous crop breeding.
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Affiliation(s)
- Conghui Ning
- College of Life Science, Southwest Forestry University, Kunming, Yunnan, China
- CAS Key Laboratory of Topical Plant Resources and Sustainable Use, CAS Center for Excellence in Molecular Plant Sciences, Xishuangbanna Tropical Botanical Garden, Chinese Academy of Sciences, Kunming, Yunnan, China
| | - Yating Yang
- CAS Key Laboratory of Topical Plant Resources and Sustainable Use, CAS Center for Excellence in Molecular Plant Sciences, Xishuangbanna Tropical Botanical Garden, Chinese Academy of Sciences, Kunming, Yunnan, China
- School of Life Sciences, Division of Life Sciences and Medicine, University of Science and Technology of China, Hefei, Anhui, China
| | - Qiyi Chen
- CAS Key Laboratory of Topical Plant Resources and Sustainable Use, CAS Center for Excellence in Molecular Plant Sciences, Xishuangbanna Tropical Botanical Garden, Chinese Academy of Sciences, Kunming, Yunnan, China
- Yunnan Key Laboratory of Plant Reproductive Adaptation and Evolutionary Ecology, Institute of Biodiversity, School of Ecology and Environmental Science, Yunnan University, Kunming, Yunnan, China
| | - Weiyue Zhao
- CAS Key Laboratory of Topical Plant Resources and Sustainable Use, CAS Center for Excellence in Molecular Plant Sciences, Xishuangbanna Tropical Botanical Garden, Chinese Academy of Sciences, Kunming, Yunnan, China
| | - Xuan Zhou
- CAS Key Laboratory of Topical Plant Resources and Sustainable Use, CAS Center for Excellence in Molecular Plant Sciences, Xishuangbanna Tropical Botanical Garden, Chinese Academy of Sciences, Kunming, Yunnan, China
| | - Liangliang He
- CAS Key Laboratory of Topical Plant Resources and Sustainable Use, CAS Center for Excellence in Molecular Plant Sciences, Xishuangbanna Tropical Botanical Garden, Chinese Academy of Sciences, Kunming, Yunnan, China
| | - Laigeng Li
- College of Life Science, Southwest Forestry University, Kunming, Yunnan, China
- University of Chinese Academy of Sciences, Beijing, China
- CAS Center for Excellence in Molecular Plant Sciences, Chinese Academy of Sciences, Shanghai, China
| | - Dan Zong
- College of Life Science, Southwest Forestry University, Kunming, Yunnan, China
| | - Jianghua Chen
- CAS Key Laboratory of Topical Plant Resources and Sustainable Use, CAS Center for Excellence in Molecular Plant Sciences, Xishuangbanna Tropical Botanical Garden, Chinese Academy of Sciences, Kunming, Yunnan, China
- School of Life Sciences, Division of Life Sciences and Medicine, University of Science and Technology of China, Hefei, Anhui, China
- Yunnan Key Laboratory of Plant Reproductive Adaptation and Evolutionary Ecology, Institute of Biodiversity, School of Ecology and Environmental Science, Yunnan University, Kunming, Yunnan, China
- University of Chinese Academy of Sciences, Beijing, China
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12
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Carvalho LC, Ramos MJN, Faísca-Silva D, Marreiros P, Fernandes JC, Egipto R, Lopes CM, Amâncio S. Modulation of the Berry Skin Transcriptome of cv. Tempranillo Induced by Water Stress Levels. PLANTS (BASEL, SWITZERLAND) 2023; 12:plants12091778. [PMID: 37176836 PMCID: PMC10180983 DOI: 10.3390/plants12091778] [Citation(s) in RCA: 0] [Impact Index Per Article: 0] [Reference Citation Analysis] [Abstract] [Key Words] [Grants] [Track Full Text] [Subscribe] [Scholar Register] [Received: 03/17/2023] [Revised: 04/10/2023] [Accepted: 04/19/2023] [Indexed: 05/15/2023]
Abstract
Climate change in the Mediterranean area is making summers warmer and dryer. Grapevine (Vitis vinifera L.) is mostly important for wine production in Mediterranean countries, and the variety Tempranillo is one of the most cultivated in Spain and Portugal. Drought decreases yield and quality and causes important economic losses. As full irrigation has negative effects on quality and water is scarce in this region, deficit irrigation is often applied. In this research, we studied the effects of two deficit irrigation treatments, Sustained Deficit Irrigation (SDI) and Regulated Deficit Irrigation (RDI), on the transcriptome of grape berries at full maturation, through RNAseq. The expression of differentially regulated genes (DEGs) was also monitored through RT-qPCR along berry development. Most transcripts were regulated by water stress, with a similar distribution of up- and down-regulated transcripts within functional categories (FC). Primary metabolism was the more severely affected FC under water stress, followed by signaling and transport. Almost all DEGs monitored were significantly up-regulated by severe water stress at veraison. The modulation of an auxin response repression factor, AUX22D, by water stress indicates a role of this gene in the response to drought. Further, the expression of WRKY40, a TF that regulates anthocyanin biosynthesis, may be responsible for changes in grape quality under severe water stress.
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Affiliation(s)
- Luísa C Carvalho
- Linking Landscape, Environment, Agriculture and Food Research Centre (LEAF), Associated Laboratory TERRA, Instituto Superior de Agronomia, Universidade de Lisboa, 1649-004 Lisboa, Portugal
| | - Miguel J N Ramos
- Linking Landscape, Environment, Agriculture and Food Research Centre (LEAF), Associated Laboratory TERRA, Instituto Superior de Agronomia, Universidade de Lisboa, 1649-004 Lisboa, Portugal
| | - David Faísca-Silva
- Linking Landscape, Environment, Agriculture and Food Research Centre (LEAF), Associated Laboratory TERRA, Instituto Superior de Agronomia, Universidade de Lisboa, 1649-004 Lisboa, Portugal
| | - Pedro Marreiros
- Linking Landscape, Environment, Agriculture and Food Research Centre (LEAF), Associated Laboratory TERRA, Instituto Superior de Agronomia, Universidade de Lisboa, 1649-004 Lisboa, Portugal
| | - João C Fernandes
- Linking Landscape, Environment, Agriculture and Food Research Centre (LEAF), Associated Laboratory TERRA, Instituto Superior de Agronomia, Universidade de Lisboa, 1649-004 Lisboa, Portugal
| | - Ricardo Egipto
- INIAV-Instituto Nacional de Investigação Agrária e Veterinária, Polo de Inovação de Dois Portos, 2565-191 Dois Portos, Portugal
| | - Carlos M Lopes
- Linking Landscape, Environment, Agriculture and Food Research Centre (LEAF), Associated Laboratory TERRA, Instituto Superior de Agronomia, Universidade de Lisboa, 1649-004 Lisboa, Portugal
| | - Sara Amâncio
- Linking Landscape, Environment, Agriculture and Food Research Centre (LEAF), Associated Laboratory TERRA, Instituto Superior de Agronomia, Universidade de Lisboa, 1649-004 Lisboa, Portugal
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13
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Li P, Chen L, Gu X, Zhao M, Wang W, Hou S. FOUR LIPS plays a role in meristemoid-to-GMC fate transition during stomatal development in Arabidopsis. THE PLANT JOURNAL : FOR CELL AND MOLECULAR BIOLOGY 2023; 114:424-436. [PMID: 36786686 DOI: 10.1111/tpj.16146] [Citation(s) in RCA: 2] [Impact Index Per Article: 2.0] [Reference Citation Analysis] [Abstract] [Key Words] [MESH Headings] [Track Full Text] [Subscribe] [Scholar Register] [Received: 11/18/2021] [Accepted: 02/07/2023] [Indexed: 05/10/2023]
Abstract
Meristemoids, which are stomatal precursor cells, exhibit self-renewal and differentiation abilities. However, the only known core factor associated with meristemoid division termination and fate transition is the heterodimer formed by the basic helix-loop-helix proteins MUTE and SCREAMs (SCRMs). FOUR LIPS (FLP), a well-known transcription factor that restricts guard mother cell (GMC) division, is a direct target of MUTE. Whether FLP involves in meristemoid differentiation is unknown. Through sensitized genetic screening of flp-1, we identified a mute-like (mutl) mutant with arrested meristemoids. The mutant carried a novel allele of the MUTE locus, i.e., mute-4. Intriguingly, mute-4 is a hypomorphic allele that exhibits wild-type appearance with slightly delayed meristemoid-to-GMC transition, whereas it renders an unexpected mutl epidermis with most meristemoids arrested and very few stomata when combined with flp (flp mute-4), suggesting that FLP is a positive regulator during this transition process. Consistently, the expression of FLP increased during GMC commitment, and the number of cells at this stage was markedly increased in flp. flp scrm double mutants produced arrested meristemoids similar to mute, and FLP was able to interact physically with SCRM. Taken together, our results demonstrate that FLP functions together with MUTE and SCRMs to direct meristemoid-to-GMC fate transition.
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Affiliation(s)
- Ping Li
- Key Laboratory of Cell Activities and Stress Adaptations, Ministry of Education, Key Laboratory of Gene Editing for Breeding, Gansu Province, School of Life Sciences, Lanzhou University, Lanzhou, 730000, China
| | - Liang Chen
- Key Laboratory of Cell Activities and Stress Adaptations, Ministry of Education, Key Laboratory of Gene Editing for Breeding, Gansu Province, School of Life Sciences, Lanzhou University, Lanzhou, 730000, China
| | - Xiaoli Gu
- Key Laboratory of Cell Activities and Stress Adaptations, Ministry of Education, Key Laboratory of Gene Editing for Breeding, Gansu Province, School of Life Sciences, Lanzhou University, Lanzhou, 730000, China
| | - Mingfeng Zhao
- Key Laboratory of Cell Activities and Stress Adaptations, Ministry of Education, Key Laboratory of Gene Editing for Breeding, Gansu Province, School of Life Sciences, Lanzhou University, Lanzhou, 730000, China
| | - Wenjin Wang
- Key Laboratory of Cell Activities and Stress Adaptations, Ministry of Education, Key Laboratory of Gene Editing for Breeding, Gansu Province, School of Life Sciences, Lanzhou University, Lanzhou, 730000, China
| | - Suiwen Hou
- Key Laboratory of Cell Activities and Stress Adaptations, Ministry of Education, Key Laboratory of Gene Editing for Breeding, Gansu Province, School of Life Sciences, Lanzhou University, Lanzhou, 730000, China
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14
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Duarte KE, Basso MF, de Oliveira NG, da Silva JCF, de Oliveira Garcia B, Cunha BADB, Cardoso TB, Nepomuceno AL, Kobayashi AK, Santiago TR, de Souza WR, Molinari HBC. MicroRNAs expression profiles in early responses to different levels of water deficit in Setaria viridis. PHYSIOLOGY AND MOLECULAR BIOLOGY OF PLANTS : AN INTERNATIONAL JOURNAL OF FUNCTIONAL PLANT BIOLOGY 2022; 28:1607-1624. [PMID: 36389096 PMCID: PMC9530107 DOI: 10.1007/s12298-022-01226-z] [Citation(s) in RCA: 0] [Impact Index Per Article: 0] [Reference Citation Analysis] [Abstract] [Key Words] [Grants] [Track Full Text] [Subscribe] [Scholar Register] [Received: 12/01/2021] [Revised: 08/22/2022] [Accepted: 08/23/2022] [Indexed: 06/16/2023]
Abstract
UNLABELLED Water deficit is a major constraint for crops of economic importance in almost all agricultural regions. However, plants have an active defense system to adapt to these adverse conditions, acting in the reprogramming of gene expression responsible for encoding microRNAs (miRNAs). These miRNAs promote the regulation to the target gene expression by the post-transcriptional (PTGS) and transcriptional gene silencing (TGS), modulating several pathways including defense response to water deficit. The broader knowledge of the miRNA expression profile and its regulatory networks in response to water deficit can provide evidence for the development of new biotechnological tools for genetic improvement of several important crops. In this study, we used Setaria viridis accession A10.1 as a C4 model plant to widely investigate the miRNA expression profile in early responses to different levels of water deficit. Ecophysiological studies in Setaria viridis under water deficit and after rewatering demonstrated a drought tolerant accession, capable of a rapid recovery from the stress. Deep small RNA sequencing and degradome studies were performed in plants submitted to drought to identify differentially expressed miRNA genes and their predicted targets, using in silico analysis. Our findings showed that several miRNAs were differentially modulated in response to distinctive levels of water deficit and after rewatering. The predicted mRNA targets mainly corresponded to genes related to cell wall remodeling, antioxidant system and drought-related transcription factors, indicating that these genes are rapidly regulated in early responses to drought stress. The implications of these modulations are extensively discussed, and higher-effect miRNAs are suggested as major players for potential use in genetic engineering to improve drought tolerance in economically important crops, such as sugarcane, maize, and sorghum. SUPPLEMENTARY INFORMATION The online version contains supplementary material available at 10.1007/s12298-022-01226-z.
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Affiliation(s)
- Karoline Estefani Duarte
- Embrapa Agroenergy, Brasília, DF 70297-400 Brazil
- Federal University of ABC, Santo André, SP 09210-580 Brazil
| | - Marcos Fernando Basso
- Embrapa Agroenergy, Brasília, DF 70297-400 Brazil
- BIOMOL/BIOTEC Laboratory, Mato Grosso Cotton Institute (IMAmt), Rondonópolis, MT 78740-970 Brazil
| | | | | | - Bruno de Oliveira Garcia
- Embrapa Agroenergy, Brasília, DF 70297-400 Brazil
- Federal University of Lavras, Lavras, MG 37200-900 Brazil
| | | | | | | | | | - Thaís Ribeiro Santiago
- Embrapa Agroenergy, Brasília, DF 70297-400 Brazil
- University of Brasília, Brasília, DF 70910-900 Brazil
| | - Wagner Rodrigo de Souza
- Embrapa Agroenergy, Brasília, DF 70297-400 Brazil
- Federal University of ABC, Santo André, SP 09210-580 Brazil
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15
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Wang Z, Li J, Yang X, Hu Y, Yin Y, Shen X. MdFLP enhances drought tolerance by regulating MdNAC019 in self-rooted apple stocks. PLANT SCIENCE : AN INTERNATIONAL JOURNAL OF EXPERIMENTAL PLANT BIOLOGY 2022; 321:111331. [PMID: 35696930 DOI: 10.1016/j.plantsci.2022.111331] [Citation(s) in RCA: 2] [Impact Index Per Article: 1.0] [Reference Citation Analysis] [Abstract] [Key Words] [MESH Headings] [Track Full Text] [Subscribe] [Scholar Register] [Received: 01/18/2022] [Revised: 05/15/2022] [Accepted: 05/17/2022] [Indexed: 06/15/2023]
Abstract
Self-rooted apple stocks are widely used for the production of apples worldwide. However, self-rooted apple stocks are weak due to shallow roots and poor grounding, resulting in poor drought resistance. Therefore, it is essential to understand the molecular mechanisms to develop self-rooted apple stock cultivars with drought resistance. We reported that MdFLP, an R2R3-MYB transcription factor, directly binds to the promoter of MdNAC019, activating its transcription and consequently enhancing drought tolerance in self-rooted apple stocks. In addition, MdFLP indirectly activates the transcriptional expression of abiotic stress-related genes, namely, MdERF6 and MdZAT10. The plants overexpressing MdFLP displayed stronger drought tolerance, whereas MdFLP-RNAi plants showed weak drought tolerance compared with non-transgenic "Gala" plants, indicating that MdFLP regulates drought tolerance in self-rooted apple stocks. Altogether, we believe that our findings provide novel insights into the functions of MdFLP in the regulation of drought tolerance in self-rooted apple stocks.
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Affiliation(s)
- Zenghui Wang
- Shandong Institute of Pomology, Tai'an, Shandong 271000, China
| | - Jialin Li
- School of Biological Science and Technology, University of Jinan, Jinan 250022, China
| | - Xuemei Yang
- Shandong Institute of Pomology, Tai'an, Shandong 271000, China
| | - Yanli Hu
- State Key Laboratory of Crop Biology, Shandong Agricultural University, Tai'an, Shandong 271018, China; Key Laboratory of Biology and Genetic Improvement of Horticultural Crops (Huanghuai Region), Ministry of Agriculture, Tai'an, Shandong 271018, China; College of Horticulture Science and Engineering, Shandong Agricultural University, Tai'an, Shandong 271018, China
| | - Yanlei Yin
- Shandong Institute of Pomology, Tai'an, Shandong 271000, China.
| | - Xiang Shen
- State Key Laboratory of Crop Biology, Shandong Agricultural University, Tai'an, Shandong 271018, China; Key Laboratory of Biology and Genetic Improvement of Horticultural Crops (Huanghuai Region), Ministry of Agriculture, Tai'an, Shandong 271018, China; College of Horticulture Science and Engineering, Shandong Agricultural University, Tai'an, Shandong 271018, China.
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16
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Li Y, Tian B, Wang Y, Wang J, Zhang H, Wang L, Sun G, Yu Y, Zhang H. The Transcription Factor MYB37 Positively Regulates Photosynthetic Inhibition and Oxidative Damage in Arabidopsis Leaves Under Salt Stress. FRONTIERS IN PLANT SCIENCE 2022; 13:943153. [PMID: 35903240 PMCID: PMC9315438 DOI: 10.3389/fpls.2022.943153] [Citation(s) in RCA: 1] [Impact Index Per Article: 0.5] [Reference Citation Analysis] [Abstract] [Key Words] [Grants] [Track Full Text] [Figures] [Subscribe] [Scholar Register] [Received: 05/13/2022] [Accepted: 06/21/2022] [Indexed: 06/15/2023]
Abstract
MYB transcription factors (TFs) mediate plant responses and defenses to biotic and abiotic stresses. The effects of overexpression of MYB37, an R2R3 MYB subgroup 14 transcription factors in Arabidopsis thaliana, on chlorophyll content, chlorophyll fluorescence parameters, reactive oxygen species (ROS) metabolism, and the contents of osmotic regulatory substances were studied under 100 mM NaCl stress. Compared with the wild type (Col-0), MYB37 overexpression significantly alleviated the salt stress symptoms in A. thaliana plants. Chlorophyll a (Chl a) and chlorophyll b (Chl b) contents were significantly decreased in OE-1 and OE-2 than in Col-0. Particularly, the Chl a/b ratio was also higher in OE-1 and OE-2 than in Col-0 under NaCl stress. However, MYB37 overexpression alleviated the degradation of chlorophyll, especially Chl a. Salt stress inhibited the activities of PSII and PSI in Arabidopsis leaves, but did not affect the activity of PSII electron donor side oxygen-evolving complex (OEC). MYB37 overexpression increased photosynthesis in Arabidopsis by increasing PSII and PSI activities. MYB37 overexpression also promoted the transfer of electrons from Q A to Q B on the PSII receptor side of Arabidopsis under NaCl stress. Additionally, MYB37 overexpression increased Y(II) and Y(NPQ) of Arabidopsis under NaCl stress and decreased Y(NO). These results indicate that MYB37 overexpression increases PSII activity and regulates the proportion of energy dissipation in Arabidopsis leaves under NaCl stress, thus decreasing the proportion of inactivated reaction centers. Salt stress causes excess electrons and energy in the photosynthetic electron transport chain of Arabidopsis leaves, resulting in the release of reactive oxygen species (ROS), such as superoxide anion and hydrogen peroxide, leading to oxidative damage. Nevertheless, MYB37 overexpression reduced accumulation of malondialdehyde in Arabidopsis leaves under NaCl stress and alleviated the degree of membrane lipid peroxidation caused by ROS. Salt stress also enhanced the accumulation of soluble sugar (SS) and proline (Pro) in Arabidopsis leaves, thus reducing salt stress damage to plants. Salt stress also degraded soluble protein (SP). Furthermore, the accumulation of osmoregulation substances SS and Pro in OE-1 and OE-2 was not different from that in Col-0 since MYB37 overexpression in Arabidopsis OE-1, and OE-2 did not significantly affect plants under NaCl stress. However, SP content was significantly higher in OE-1 and OE-2 than in Col-0. These results indicate that MYB37 overexpression can alleviate the degradation of Arabidopsis proteins under NaCl stress, promote plant growth and improve salt tolerance.
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Affiliation(s)
- Yuanyuan Li
- Key Laboratory of Saline-alkali Vegetation Ecology Restoration, Ministry of Education, College of Life Sciences, Northeast Forestry University, Harbin, China
| | - Bei Tian
- Key Laboratory of Saline-alkali Vegetation Ecology Restoration, Ministry of Education, College of Life Sciences, Northeast Forestry University, Harbin, China
| | - Yue Wang
- Key Laboratory of Saline-alkali Vegetation Ecology Restoration, Ministry of Education, College of Life Sciences, Northeast Forestry University, Harbin, China
| | - Jiechen Wang
- Key Laboratory of Saline-alkali Vegetation Ecology Restoration, Ministry of Education, College of Life Sciences, Northeast Forestry University, Harbin, China
| | - Hongbo Zhang
- Key Laboratory of Saline-alkali Vegetation Ecology Restoration, Ministry of Education, College of Life Sciences, Northeast Forestry University, Harbin, China
| | - Lu Wang
- Key Laboratory of Saline-alkali Vegetation Ecology Restoration, Ministry of Education, College of Life Sciences, Northeast Forestry University, Harbin, China
| | - Guangyu Sun
- Key Laboratory of Saline-alkali Vegetation Ecology Restoration, Ministry of Education, College of Life Sciences, Northeast Forestry University, Harbin, China
| | - Yongtao Yu
- National Watermelon and Melon Improvement Center, Beijing Academy of Agriculture and Forestry Sciences, Key Laboratory of Biology and Genetic Improvement of Horticultural Crops (North China), Beijing Key Laboratory of Vegetable Germplasm Improvement, Beijing, China
| | - Huihui Zhang
- Key Laboratory of Saline-alkali Vegetation Ecology Restoration, Ministry of Education, College of Life Sciences, Northeast Forestry University, Harbin, China
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Wang B, Li S, Zou L, Guo X, Liang J, Liao W, Peng M. Natural variation MeMYB108 associated with tolerance to stress-induced leaf abscission linked to enhanced protection against reactive oxygen species in cassava. PLANT CELL REPORTS 2022; 41:1573-1587. [PMID: 35608655 PMCID: PMC9270272 DOI: 10.1007/s00299-022-02879-6] [Citation(s) in RCA: 0] [Impact Index Per Article: 0] [Reference Citation Analysis] [Abstract] [Key Words] [MESH Headings] [Grants] [Track Full Text] [Figures] [Subscribe] [Scholar Register] [Received: 01/01/2022] [Accepted: 04/26/2022] [Indexed: 06/15/2023]
Abstract
Natural variation of the MeMYB108 exon was associated with reactive oxygen scavengers led to alleviate leaf abscission under drought in cassava. The reactive oxygen scavengers play important roles in regulating the cassava (Manihot esculenta Crantz) leaf abscission induced by stresses. To date, the relationship between natural variations of MYB genes and reactive oxygen scavengers under drought in cassava genotypes remains unclear. Here, we reported the transcription factor MeMYB108 played an important role in regulating leaf abscission exposed to drought in cassava. The expression levels of MeMYB108 in abscission zones of cassava leaf pulvinus were higher in cassava genotype SC124, which were less easy to shed leaves under stress than cassava genotype SC8 when the leaf abscission induced by the same drought condition. Compared with wild type and interference expression plants, overexpression of MeMYB108 significantly reduced the drought-induced leaf abscission rate under drought. The consecutively 2-year analysis of reactive oxygen scavengers showed significant differences among different cassava genotypes under drought-induced leaf abscission, indicating the relevance between reactive oxygen scavengers and leaf abscission. Correlation analysis revealed the natural variation of the MeMYB108 exon was associated with reactive oxygen scavengers during drought-induced leaf abscission. Association analysis between pairwise LD of DNA polymorphism indicated the MeMYB108 allele enhanced the tolerance of cassava to drought-induced leaf abscission. Complementation transgenic lines containing the elite allele of MeMYB108 SC124 decreased the leaf abscission rate induced by drought conditions, demonstrating natural variation in MeMYB108 contributed to leaf abscission tolerance induced by drought in cassava. Further studies showed MeMYB108 played an active role in the tolerance of cassava to drought-induced leaf abscission by inducing scavenging of reactive oxygen species.
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Affiliation(s)
- Bin Wang
- Institute of Tropical Bioscience and Biotechnology, Chinese Academy of Tropical Agricultural Sciences, Haikou, 571101, China
- Key Laboratory of Biology and Genetic Resources of Tropical Crops, Institute of Tropical Bioscience and Biotechnology, Chinese Academy of Tropical Agricultural Sciences, Haikou, China
| | - Shuxia Li
- Institute of Tropical Bioscience and Biotechnology, Chinese Academy of Tropical Agricultural Sciences, Haikou, 571101, China
- Key Laboratory of Biology and Genetic Resources of Tropical Crops, Institute of Tropical Bioscience and Biotechnology, Chinese Academy of Tropical Agricultural Sciences, Haikou, China
| | - Liangping Zou
- Institute of Tropical Bioscience and Biotechnology, Chinese Academy of Tropical Agricultural Sciences, Haikou, 571101, China
- Key Laboratory of Biology and Genetic Resources of Tropical Crops, Institute of Tropical Bioscience and Biotechnology, Chinese Academy of Tropical Agricultural Sciences, Haikou, China
| | - Xin Guo
- Institute of Tropical Bioscience and Biotechnology, Chinese Academy of Tropical Agricultural Sciences, Haikou, 571101, China
| | - Jiaxin Liang
- College of Life Sciences, Heilongjiang University, Heilongjing, 150080, China
| | - Wenbin Liao
- Institute of Tropical Bioscience and Biotechnology, Chinese Academy of Tropical Agricultural Sciences, Haikou, 571101, China.
- Key Laboratory of Biology and Genetic Resources of Tropical Crops, Institute of Tropical Bioscience and Biotechnology, Chinese Academy of Tropical Agricultural Sciences, Haikou, China.
| | - Ming Peng
- Institute of Tropical Bioscience and Biotechnology, Chinese Academy of Tropical Agricultural Sciences, Haikou, 571101, China.
- Key Laboratory of Biology and Genetic Resources of Tropical Crops, Institute of Tropical Bioscience and Biotechnology, Chinese Academy of Tropical Agricultural Sciences, Haikou, China.
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Zhou Z, Fan J, Zhang J, Yang Y, Zhang Y, Zan X, Li X, Wan J, Gao X, Chen R, Huang Z, Xu Z, Li L. OsMLP423 Is a Positive Regulator of Tolerance to Drought and Salt Stresses in Rice. PLANTS (BASEL, SWITZERLAND) 2022; 11:1653. [PMID: 35807608 PMCID: PMC9269302 DOI: 10.3390/plants11131653] [Citation(s) in RCA: 0] [Impact Index Per Article: 0] [Reference Citation Analysis] [Abstract] [Key Words] [Grants] [Track Full Text] [Download PDF] [Figures] [Subscribe] [Scholar Register] [Received: 05/10/2022] [Revised: 06/17/2022] [Accepted: 06/18/2022] [Indexed: 11/17/2022]
Abstract
Rice (Oryza sativa L.) is one of the main food crops for human survival, and its yield is often restricted by abiotic stresses. Drought and soil salinity are among the most damaging abiotic stresses affecting today's agriculture. Given the importance of abscisic acid (ABA) in plant growth and abiotic stress responses, it is very important to identify new genes involved in ABA signal transduction. We screened a drought-inducing gene containing about 158 amino acid residues from the transcriptome library of rice exposed to drought treatment, and we found ABA-related cis-acting elements and multiple drought-stress-related cis-acting elements in its promoter sequence. The results of real-time PCR showed that OsMLP423 was strongly induced by drought and salt stresses. The physiological and biochemical phenotype analysis of transgenic plants confirmed that overexpression of OsMLP423 enhanced the tolerance to drought and salt stresses in rice. The expression of OsMLP423-GFP fusion protein indicated that OsMLP423 was located in both the cell membrane system and nucleus. Compared with the wild type, the overexpressed OsMLP423 showed enhanced sensitivity to ABA. Physiological analyses showed that the overexpression of OsMLP423 may regulate the water loss efficiency and ABA-responsive gene expression of rice plants under drought and salt stresses, and it reduces membrane damage and the accumulation of reactive oxygen species. These results indicate that OsMLP423 is a positive regulator of drought and salinity tolerance in rice, governing the tolerance of rice to abiotic stresses through an ABA-dependent pathway. Therefore, this study provides a new insight into the physiological and molecular mechanisms of OsMLP423-mediated ABA signal transduction participating in drought and salt stresses.
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Affiliation(s)
- Zhanmei Zhou
- Crop Ecophysiology and Cultivation Key Laboratory of Sichuan Province, Rice Research Institute of Sichuan Agricultural University, Chengdu 611130, China; (Z.Z.); (J.Z.); (Y.Y.); (Y.Z.); (X.Z.); (X.L.); (J.W.); (X.G.); (R.C.); (Z.H.)
| | - Jiangbo Fan
- Chongqing Army Characteristic Medical Center, Chongqing 400000, China;
| | - Jia Zhang
- Crop Ecophysiology and Cultivation Key Laboratory of Sichuan Province, Rice Research Institute of Sichuan Agricultural University, Chengdu 611130, China; (Z.Z.); (J.Z.); (Y.Y.); (Y.Z.); (X.Z.); (X.L.); (J.W.); (X.G.); (R.C.); (Z.H.)
| | - Yanmei Yang
- Crop Ecophysiology and Cultivation Key Laboratory of Sichuan Province, Rice Research Institute of Sichuan Agricultural University, Chengdu 611130, China; (Z.Z.); (J.Z.); (Y.Y.); (Y.Z.); (X.Z.); (X.L.); (J.W.); (X.G.); (R.C.); (Z.H.)
| | - Yifan Zhang
- Crop Ecophysiology and Cultivation Key Laboratory of Sichuan Province, Rice Research Institute of Sichuan Agricultural University, Chengdu 611130, China; (Z.Z.); (J.Z.); (Y.Y.); (Y.Z.); (X.Z.); (X.L.); (J.W.); (X.G.); (R.C.); (Z.H.)
| | - Xiaofei Zan
- Crop Ecophysiology and Cultivation Key Laboratory of Sichuan Province, Rice Research Institute of Sichuan Agricultural University, Chengdu 611130, China; (Z.Z.); (J.Z.); (Y.Y.); (Y.Z.); (X.Z.); (X.L.); (J.W.); (X.G.); (R.C.); (Z.H.)
| | - Xiaohong Li
- Crop Ecophysiology and Cultivation Key Laboratory of Sichuan Province, Rice Research Institute of Sichuan Agricultural University, Chengdu 611130, China; (Z.Z.); (J.Z.); (Y.Y.); (Y.Z.); (X.Z.); (X.L.); (J.W.); (X.G.); (R.C.); (Z.H.)
| | - Jiale Wan
- Crop Ecophysiology and Cultivation Key Laboratory of Sichuan Province, Rice Research Institute of Sichuan Agricultural University, Chengdu 611130, China; (Z.Z.); (J.Z.); (Y.Y.); (Y.Z.); (X.Z.); (X.L.); (J.W.); (X.G.); (R.C.); (Z.H.)
| | - Xiaoling Gao
- Crop Ecophysiology and Cultivation Key Laboratory of Sichuan Province, Rice Research Institute of Sichuan Agricultural University, Chengdu 611130, China; (Z.Z.); (J.Z.); (Y.Y.); (Y.Z.); (X.Z.); (X.L.); (J.W.); (X.G.); (R.C.); (Z.H.)
| | - Rongjun Chen
- Crop Ecophysiology and Cultivation Key Laboratory of Sichuan Province, Rice Research Institute of Sichuan Agricultural University, Chengdu 611130, China; (Z.Z.); (J.Z.); (Y.Y.); (Y.Z.); (X.Z.); (X.L.); (J.W.); (X.G.); (R.C.); (Z.H.)
| | - Zhengjian Huang
- Crop Ecophysiology and Cultivation Key Laboratory of Sichuan Province, Rice Research Institute of Sichuan Agricultural University, Chengdu 611130, China; (Z.Z.); (J.Z.); (Y.Y.); (Y.Z.); (X.Z.); (X.L.); (J.W.); (X.G.); (R.C.); (Z.H.)
| | - Zhengjun Xu
- Crop Ecophysiology and Cultivation Key Laboratory of Sichuan Province, Rice Research Institute of Sichuan Agricultural University, Chengdu 611130, China; (Z.Z.); (J.Z.); (Y.Y.); (Y.Z.); (X.Z.); (X.L.); (J.W.); (X.G.); (R.C.); (Z.H.)
| | - Lihua Li
- Crop Ecophysiology and Cultivation Key Laboratory of Sichuan Province, Rice Research Institute of Sichuan Agricultural University, Chengdu 611130, China; (Z.Z.); (J.Z.); (Y.Y.); (Y.Z.); (X.Z.); (X.L.); (J.W.); (X.G.); (R.C.); (Z.H.)
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A Rice R2R3-Type MYB Transcription Factor OsFLP Positively Regulates Drought Stress Response via OsNAC. Int J Mol Sci 2022; 23:ijms23115873. [PMID: 35682553 PMCID: PMC9180394 DOI: 10.3390/ijms23115873] [Citation(s) in RCA: 8] [Impact Index Per Article: 4.0] [Reference Citation Analysis] [Abstract] [Key Words] [Track Full Text] [Download PDF] [Figures] [Journal Information] [Subscribe] [Scholar Register] [Received: 04/19/2022] [Revised: 05/18/2022] [Accepted: 05/22/2022] [Indexed: 11/17/2022] Open
Abstract
Abiotic stresses adversely affect plant growth and the yield of crops worldwide. R2R3-MYB transcriptional factors have been found to be vital for plants to confer stress response. In Arabidopsis, FOUR LIPS (FLP, MYB124) and its paralogous MYB88 function redundantly regulated the symmetric division of guard mother cells (GMCs) and abiotic stress response. Here, OsFLP was identified as an R2R3-MYB transcriptional activator and localized in the nucleus. OsFLP was transiently induced by drought, salt stress and abscisic acid (ABA). Overexpression of OsFLP showed enhanced tolerance to drought and salt stresses. The stomatal density in OsFLP-OE plants was not changed, whereas the stomatal closure was sensitive to ABA treatment compared to wild-type plants. In contrast, OsFLP-RNAi plants had abnormal stomata and were sensitive to drought. Moreover, the transcripts of stomatal closure-related genes DST and peroxidase 24 precursor, which are identified as downstream of OsNAC1, were inhibited in OsFLP-RNAi plants. The yeast-one-hybrid assay indicated that OsFLP can specifically bind and positively regulate OsNAC1 and OsNAC6. Meanwhile, stress response genes, such as OsLEA3 and OsDREB2A, were up-regulated in OsFLP-OE plants. These findings suggested that OsFLP positively participates in drought stress, mainly through regulating regulators' transcripts of OsNAC1 and OsNAC6.
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Li P, Xia E, Fu J, Xu Y, Zhao X, Tong W, Tang Q, Tadege M, Fernie AR, Zhao J. Diverse roles of MYB transcription factors in regulating secondary metabolite biosynthesis, shoot development, and stress responses in tea plants (Camellia sinensis). THE PLANT JOURNAL : FOR CELL AND MOLECULAR BIOLOGY 2022; 110:1144-1165. [PMID: 35277905 DOI: 10.1111/tpj.15729] [Citation(s) in RCA: 36] [Impact Index Per Article: 18.0] [Reference Citation Analysis] [Abstract] [Key Words] [MESH Headings] [Track Full Text] [Subscribe] [Scholar Register] [Received: 05/31/2021] [Revised: 02/28/2022] [Accepted: 03/08/2022] [Indexed: 05/20/2023]
Abstract
Tea (Camellia sinensis) is concocted from tea plant shoot tips that produce catechins, caffeine, theanine, and terpenoids, which collectively determine the rich flavors and health benefits of the infusion. However, little is known about the integrated regulation of shoot tip development and characteristic secondary metabolite biosynthesis in tea plants. Here, we demonstrate that MYB transcription factors (TFs) play key and yet diverse roles in regulating leaf and stem development, secondary metabolite biosynthesis, and environmental stress responses in tea plants. By integrating transcriptomic and metabolic profiling data in different tissues at a series of developmental stages or under various stress conditions, alongside biochemical and genetic analyses, we predicted the MYB TFs involved in regulating shoot development (CsMYB2, 98, 107, and 221), epidermal cell initiation (CsMYB184, 41, 139, and 219), stomatal initiation (CsMYB113 and 153), and the biosynthesis of flavonoids (including catechins, anthocyanins, and flavonols; CsMYB8 and 99), caffeine (CsMYB85 and 86), theanine (CsMYB9 and 49), carotenoids (CsMYB110), mono-/sesquiterpenoid volatiles (CsMYB68, 147, 148, and 193), lignin (CsMYB164 and 192), and indolic compounds (CsMYB139, 162, and 198), as well as the MYB TFs that are likely involved in hormone signaling-mediated environmental stress and defense responses. We characterized the functions of some key MYBs in regulating flavonoid and carotenoid biosynthesis for tea quality and flavor. This study provides a cross-family analysis of MYBs in tea alongside new insights into the coordinated regulation of tea plant shoot development and secondary metabolism, paving the way towards understanding of tea quality trait formation and genetic improvement of quality tea plants.
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Affiliation(s)
- Penghui Li
- State Key Laboratory of Tea Plant Biology and Utilization, Anhui Agricultural University, Hefei, 230036, China
| | - Enhua Xia
- State Key Laboratory of Tea Plant Biology and Utilization, Anhui Agricultural University, Hefei, 230036, China
| | - Jiamin Fu
- State Key Laboratory of Tea Plant Biology and Utilization, Anhui Agricultural University, Hefei, 230036, China
| | - Yujie Xu
- State Key Laboratory of Tea Plant Biology and Utilization, Anhui Agricultural University, Hefei, 230036, China
| | - Xuecheng Zhao
- State Key Laboratory of Tea Plant Biology and Utilization, Anhui Agricultural University, Hefei, 230036, China
| | - Wei Tong
- State Key Laboratory of Tea Plant Biology and Utilization, Anhui Agricultural University, Hefei, 230036, China
| | - Qian Tang
- College of Horticulture, Sichuan Agricultural University, Chengdu, 611130, China
| | - Million Tadege
- Department of Plant and Soil Sciences, Institute for Agricultural Biosciences, Oklahoma State University, 3210 Sam Noble Parkway, Ardmore, Oklahoma, 73401, USA
| | - Alisdair R Fernie
- Max-Planck-Institute of Molecular Plant Physiology, Am Mühlenberg 1, 14476, Potsdam-Golm, Germany
| | - Jian Zhao
- State Key Laboratory of Tea Plant Biology and Utilization, Anhui Agricultural University, Hefei, 230036, China
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21
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Cao X, Xu L, Li L, Wan W, Jiang J. TcMYB29a, an ABA-Responsive R2R3-MYB Transcriptional Factor, Upregulates Taxol Biosynthesis in Taxus chinensis. FRONTIERS IN PLANT SCIENCE 2022; 13:804593. [PMID: 35310663 PMCID: PMC8931530 DOI: 10.3389/fpls.2022.804593] [Citation(s) in RCA: 10] [Impact Index Per Article: 5.0] [Reference Citation Analysis] [Abstract] [Key Words] [Grants] [Track Full Text] [Subscribe] [Scholar Register] [Received: 10/29/2021] [Accepted: 01/21/2022] [Indexed: 05/27/2023]
Abstract
Paclitaxel (Taxol), a highly modified diterpene agent mainly obtained from Taxus species, is the most widely used anticancer drug. Abscisic acid (ABA) is a well-known stress hormone that plays important roles in the secondary metabolism of plants, and it can also induce the accumulation of taxol in Taxus cell suspension cultures. However, the mechanism behind the regulation of taxol biosynthesis by ABA remains largely unknown. In previous research, a R2R3 MYB transcription factor (TF) TcMYB29a was observed to show a significant correlation with taxol biosynthesis, indicative of its potential role in the taxol biosynthesis. In this study, the TcMYB29a encoded by its gene was further characterized. An expression pattern analysis revealed that TcMYB29a was highly expressed in the needles and roots. Overexpression of TcMYB29a in Taxus chinensis cell suspension cultures led to an increased accumulation of taxol, and upregulated expression of taxol-biosynthesis-related genes, including the taxadiene synthase (TS) gene, the taxane 5α-hydroxylase (T5OH) gene, and the 3'-N-debenzoyl-2'-deoxytaxol-N-benzoyltransferase (DBTNBT) gene as compared to the controls. Chromatin immunoprecipitation (ChIP) assays, yeast one-hybrid (Y1H) assays, electrophoretic mobility shift assays (EMSAs), and dual-luciferase reporter assays verified that TcMYB29a could bind and activate the promoter of TcT5OH. Promoter sequence analysis of TcMYB29a revealed that its promoter containing an AERB site from -313 to -319 was a crucial ABA-responsive element. Subsequently, the ABA treatment assay showed that TcMYB29a was strongly upregulated at 6 h after ABA pretreatment. Furthermore, TcMYB29a was strongly suppressed at 3 h after the methyl jasmonate (MeJA) treatment and was depressed to the platform at 12 h. Taken together, these results reveal that TcMYB29a is an activator that improves the accumulation of taxol in Taxus chinensis cells through an ABA-medicated signaling pathway which is different from JA-medicated signaling pathways for the accumulation of taxol. These findings provide new insights into the potential regulatory roles of MYBs on the expression of taxol biosynthetic genes in Taxus.
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22
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Zhang LY, Xing ZT, Chen LQ, Zhang XJ, Fan SJ. Comprehensive Time-Course Transcriptome and Co-expression Network Analyses Identify Salt Stress Responding Mechanisms in Chlamydomonas reinhardtii Strain GY-D55. FRONTIERS IN PLANT SCIENCE 2022; 13:828321. [PMID: 35283918 PMCID: PMC8908243 DOI: 10.3389/fpls.2022.828321] [Citation(s) in RCA: 0] [Impact Index Per Article: 0] [Reference Citation Analysis] [Abstract] [Key Words] [Grants] [Track Full Text] [Figures] [Subscribe] [Scholar Register] [Received: 12/03/2021] [Accepted: 01/10/2022] [Indexed: 06/14/2023]
Abstract
It is highly necessary to understand the molecular mechanism underlying the salt stress response in green algae, which may contribute to finding the evolutionary cues of abiotic stress response in plants. Here, we reported a comprehensive temporal investigation of transcriptomes using data at eight different time points, from an early stage (2 h) to a late stage (up to 96 h) in Chlamydomonas reinhardtii GY-D55 cells. The principal component analysis (PCA) of transcriptome profiles showed that the samples of the early and late stages were well separated. A total of 12,445 genes were detected as differentially expressed genes. There were 1,861/2,270 common upregulated/downregulated genes for each time point compared with control samples. Samples treated with salt for 2, 8, and 24 h had a relatively large number of characteristic upregulated/downregulated genes. The functional enrichment analysis highlighted the timing of candidate regulatory mechanisms for salt stress responses in GY-D55 cells. Short time exposure to salt stress impaired oxidation-reduction, protein synthesis and modification, and photosynthesis. The algal cells promoted transcriptional regulation and protein folding to deal with protein synthesis/modification impairments and rapidly accumulated glycerol in the early stage (2-4 h) to cope with osmotic stress. At 12 and 24 h, GY-D55 cells showed increased expressions of signaling and photosynthetic genes to deal with the damage of photosynthesis. The co-expression module blue was predicted to regulate endoplasmic reticulum (ER) stress at early time points. In addition, we identified a total of 113 transcription factors (TFs) and predicted the potential roles of Alfin, C2C2, and the MYB family TFs in algal salt stress response.
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23
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Wu L, Chang Y, Wang L, Wang S, Wu J. The aquaporin gene PvXIP1;2 conferring drought resistance identified by GWAS at seedling stage in common bean. TAG. THEORETICAL AND APPLIED GENETICS. THEORETISCHE UND ANGEWANDTE GENETIK 2022; 135:485-500. [PMID: 34698878 DOI: 10.1007/s00122-021-03978-w] [Citation(s) in RCA: 4] [Impact Index Per Article: 2.0] [Reference Citation Analysis] [Abstract] [MESH Headings] [Track Full Text] [Subscribe] [Scholar Register] [Received: 07/25/2021] [Accepted: 10/16/2021] [Indexed: 06/13/2023]
Abstract
A whole-genome resequencing-derived SNP dataset used for genome-wide association analysis revealed 12 loci significantly associated with drought stress based on survival rate after drought stress at seedling stage. We further confirmed the drought-related function of an aquaporin gene (PvXIP1;2) located at Locus_10. A variety of adverse conditions, including drought stress, severely affect common bean production. Molecular breeding for drought resistance has been proposed as an effective and practical way to improve the drought resistance of common bean. A genome-wide association analysis was conducted to identify drought-related loci based on survival rates at the seedling stage using a natural population consisting of 400 common bean accessions and 3,832,340 SNPs. The coefficient of variation ranged from 40.90 to 56.22% for survival rates in three independent experiments. A total of 12 associated loci containing 89 significant SNPs were identified for survival rates at the seedling stage. Four loci overlapped in the region of the QTLs reported to be associated with drought resistance. According to the expression profiles, gene annotations and references of the functions of homologous genes in Arabidopsis, 39 genes were considered potential candidate genes selected from 199 genes annotated within all associated loci. A stable locus (Locus_10) was identified on chromosome 11, which contained LEA, aquaporin, and proline-rich protein genes. We further confirmed the drought-related function of an aquaporin (PvXIP1;2) located at Locus_10 by expression pattern analysis, phenotypic analysis of PvXIP1;2-overexpressing Arabidopsis and Agrobacterium rhizogenes-mediated hairy root transformation systems, indicating that the association results can facilitate the efficient identification of genes related to drought resistance. These loci and their candidate genes provide a foundation for crop improvement via breeding for drought resistance in common bean.
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Affiliation(s)
- Lei Wu
- Institute of Crop Science, Chinese Academy of Agricultural Sciences, Beijing, 100081, China
| | - Yujie Chang
- Institute of Crop Science, Chinese Academy of Agricultural Sciences, Beijing, 100081, China
| | - Lanfen Wang
- Institute of Crop Science, Chinese Academy of Agricultural Sciences, Beijing, 100081, China
| | - Shumin Wang
- Institute of Crop Science, Chinese Academy of Agricultural Sciences, Beijing, 100081, China
| | - Jing Wu
- Institute of Crop Science, Chinese Academy of Agricultural Sciences, Beijing, 100081, China.
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Evaluation of reference genes and characterization of the MYBs in xylem radial change of Chinese fir stem. Sci Rep 2022; 12:258. [PMID: 34997161 PMCID: PMC8741804 DOI: 10.1038/s41598-021-04406-1] [Citation(s) in RCA: 1] [Impact Index Per Article: 0.5] [Reference Citation Analysis] [Abstract] [Track Full Text] [Download PDF] [Figures] [Journal Information] [Subscribe] [Scholar Register] [Received: 04/06/2021] [Accepted: 12/14/2021] [Indexed: 12/14/2022] Open
Abstract
The radial change (RC) of tree stem is the process of heartwood formation involved in complex molecular mechanism. Chinese fir (Cunninghamia lanceolata (Lamb.) Hook.), an evergreen species, is an important fast-growing timber tree in southern China. In this study, the top four stable genes (IDH, UBC2, RCA and H2B) were selected in RC tissues of 15 years old Chinese fir stem (RC15) and the genes (H2B, 18S, TIP41 and GAPDH) were selected in RC tissues of 30 years old Chinese fir stem (RC30). The stability of the reference genes is higher in RC30 than in RC15. Sixty-one MYB transcripts were obtained on the PacBio Sequel platform from woody tissues of one 30 years old Chinese fir stem. Based on the number of MYB DNA-binding domain and phylogenetic relationships, the ClMYB transcripts contained 21 transcripts of MYB-related proteins (1R-MYB), 39 transcripts of R2R3-MYB proteins (2R-MYB), one transcript of R1R2R3-MYB protein (3R-MYB) belonged to 18 function-annotated clades and two function-unknown clades. In RC woody tissues of 30 years old Chinese fir stem, ClMYB22 was the transcript with the greatest fold change detected by both RNA-seq and qRT-PCR. Reference genes selected in this study will be helpful for further verification of transcript abundance patterns during the heartwood formation of Chinese fir.
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Li Y, Xue S, He Q, Wang J, Zhu L, Zou J, Zhang J, Zuo C, Fan Z, Yue J, Zhang C, Yang K, Le J. Arabidopsis F-BOX STRESS INDUCED 4 is required to repress excessive divisions in stomatal development. JOURNAL OF INTEGRATIVE PLANT BIOLOGY 2022; 64:56-72. [PMID: 34817930 DOI: 10.1111/jipb.13193] [Citation(s) in RCA: 0] [Impact Index Per Article: 0] [Reference Citation Analysis] [Abstract] [Key Words] [MESH Headings] [Track Full Text] [Subscribe] [Scholar Register] [Received: 08/21/2021] [Accepted: 11/21/2021] [Indexed: 06/13/2023]
Abstract
During the terminal stage of stomatal development, the R2R3-MYB transcription factors FOUR LIPS (FLP/MYB124) and MYB88 limit guard mother cell division by repressing the transcript levels of multiple cell-cycle genes. In Arabidopsis thaliana possessing the weak allele flp-1, an extra guard mother cell division results in two stomata having direct contact. Here, we identified an ethylmethane sulfonate-mutagenized mutant, flp-1 xs01c, which exhibited more severe defects than flp-1 alone, producing giant tumor-like cell clusters. XS01C, encoding F-BOX STRESS-INDUCED 4 (FBS4), is preferentially expressed in epidermal stomatal precursor cells. Overexpressing FBS4 rescued the defective stomatal phenotypes of flp-1 xs01c and flp-1 mutants. The deletion or substitution of a conserved residue (Proline166) within the F-box domain of FBS4 abolished or reduced, respectively, its interaction with Arabidopsis Skp1-Like1 (ASK1), the core subunit of the Skp1/Cullin/F-box E3 ubiquitin ligase complex. Furthermore, the FBS4 protein physically interacted with CYCA2;3 and induced its degradation through the ubiquitin-26S proteasome pathway. Thus, in addition to the known transcriptional pathway, the terminal symmetric division in stomatal development is ensured at the post-translational level, such as through the ubiquitination of target proteins recognized by the stomatal lineage F-box protein FBS4.
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Affiliation(s)
- Yi Li
- Key Laboratory of Plant Molecular Physiology, CAS Center for Excellence in Molecular Plant Sciences, Institute of Botany, The Chinese Academy of Sciences, Beijing, 100093, China
- University of Chinese Academy of Sciences, Beijing, 100049, China
| | - Shan Xue
- Key Laboratory of Plant Molecular Physiology, CAS Center for Excellence in Molecular Plant Sciences, Institute of Botany, The Chinese Academy of Sciences, Beijing, 100093, China
- The Institute of Scientific and Technical Information of China, Beijing, 100038, China
| | - Qixiumei He
- Key Laboratory of Plant Molecular Physiology, CAS Center for Excellence in Molecular Plant Sciences, Institute of Botany, The Chinese Academy of Sciences, Beijing, 100093, China
- University of Chinese Academy of Sciences, Beijing, 100049, China
| | - Junxue Wang
- Key Laboratory of Plant Molecular Physiology, CAS Center for Excellence in Molecular Plant Sciences, Institute of Botany, The Chinese Academy of Sciences, Beijing, 100093, China
- Wenbo School, Jinan, 250100, China
| | - Lingling Zhu
- Key Laboratory of Plant Molecular Physiology, CAS Center for Excellence in Molecular Plant Sciences, Institute of Botany, The Chinese Academy of Sciences, Beijing, 100093, China
- University of Chinese Academy of Sciences, Beijing, 100049, China
| | - Junjie Zou
- Key Laboratory of Plant Molecular Physiology, CAS Center for Excellence in Molecular Plant Sciences, Institute of Botany, The Chinese Academy of Sciences, Beijing, 100093, China
- Biotechnology Research Institute, Chinese Academy of Agricultural Sciences, Beijing, 100081, China
| | - Jie Zhang
- Key Laboratory of Plant Molecular Physiology, CAS Center for Excellence in Molecular Plant Sciences, Institute of Botany, The Chinese Academy of Sciences, Beijing, 100093, China
- University of Chinese Academy of Sciences, Beijing, 100049, China
| | - Chaoran Zuo
- Key Laboratory of Plant Molecular Physiology, CAS Center for Excellence in Molecular Plant Sciences, Institute of Botany, The Chinese Academy of Sciences, Beijing, 100093, China
- University of Chinese Academy of Sciences, Beijing, 100049, China
| | - Zhibin Fan
- Key Laboratory of Plant Molecular Physiology, CAS Center for Excellence in Molecular Plant Sciences, Institute of Botany, The Chinese Academy of Sciences, Beijing, 100093, China
- University of Chinese Academy of Sciences, Beijing, 100049, China
| | - Junling Yue
- Key Laboratory of Plant Molecular Physiology, CAS Center for Excellence in Molecular Plant Sciences, Institute of Botany, The Chinese Academy of Sciences, Beijing, 100093, China
- University of Chinese Academy of Sciences, Beijing, 100049, China
| | - Chunxia Zhang
- Key Laboratory of Plant Molecular Physiology, CAS Center for Excellence in Molecular Plant Sciences, Institute of Botany, The Chinese Academy of Sciences, Beijing, 100093, China
| | - Kezhen Yang
- Key Laboratory of Plant Molecular Physiology, CAS Center for Excellence in Molecular Plant Sciences, Institute of Botany, The Chinese Academy of Sciences, Beijing, 100093, China
| | - Jie Le
- Key Laboratory of Plant Molecular Physiology, CAS Center for Excellence in Molecular Plant Sciences, Institute of Botany, The Chinese Academy of Sciences, Beijing, 100093, China
- University of Chinese Academy of Sciences, Beijing, 100049, China
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Wang L, Qiu T, Yue J, Guo N, He Y, Han X, Wang Q, Jia P, Wang H, Li M, Wang C, Wang X. Arabidopsis ADF1 is Regulated by MYB73 and is Involved in Response to Salt Stress Affecting Actin Filament Organization. PLANT & CELL PHYSIOLOGY 2021; 62:1387-1395. [PMID: 34086948 DOI: 10.1093/pcp/pcab081] [Citation(s) in RCA: 23] [Impact Index Per Article: 7.7] [Reference Citation Analysis] [Abstract] [Key Words] [MESH Headings] [Track Full Text] [Subscribe] [Scholar Register] [Received: 02/10/2021] [Revised: 05/26/2021] [Accepted: 06/03/2021] [Indexed: 06/12/2023]
Abstract
Actin cytoskeleton and transcription factors play key roles in plant response to salt stress; however, little is known about the link between the two regulators in response to salt stress. Actin-depolymerizing factors (ADFs) are conserved actin-binding proteins in eukaryotes. Here, we revealed that the expression level of ADF1 was induced by salt stress. The adf1 mutants showed significantly reduced survival rate, increased percentage of actin cable and reduced density of actin filaments, while ADF1 overexpression seedlings displayed the opposite results when compared with WT under the same condition. Furthermore, biochemical assays revealed that MYB73, a R2R3 MYB transcription factor, binds to the promoter of ADF1 and represses its expression via the MYB-binding site core motif ACCTAC. Taken together, our results indicate that ADF1 participates in salt stress by regulating actin organization and may also serve as a potential downstream target of MYB73, which is a negative regulator of salt stress.
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Affiliation(s)
- Lu Wang
- College of Bioscience and Biotechnology, Shenyang Agricultural University, Shenyang Liaoning 110866, China
- College of Horticulture, Shenyang Agricultural University, Shenyang Liaoning 110866, China
| | - Tianqi Qiu
- College of Bioscience and Biotechnology, Shenyang Agricultural University, Shenyang Liaoning 110866, China
| | - Jianru Yue
- College of Bioscience and Biotechnology, Shenyang Agricultural University, Shenyang Liaoning 110866, China
| | - Nannan Guo
- College of Bioscience and Biotechnology, Shenyang Agricultural University, Shenyang Liaoning 110866, China
| | - Yunjian He
- College of Bioscience and Biotechnology, Shenyang Agricultural University, Shenyang Liaoning 110866, China
| | - Xueping Han
- College of Bioscience and Biotechnology, Shenyang Agricultural University, Shenyang Liaoning 110866, China
| | - Qiuyang Wang
- College of Bioscience and Biotechnology, Shenyang Agricultural University, Shenyang Liaoning 110866, China
| | - Pengfei Jia
- College of Bioscience and Biotechnology, Shenyang Agricultural University, Shenyang Liaoning 110866, China
| | - Hongdan Wang
- College of Bioscience and Biotechnology, Shenyang Agricultural University, Shenyang Liaoning 110866, China
| | - Muzi Li
- College of Bioscience and Biotechnology, Shenyang Agricultural University, Shenyang Liaoning 110866, China
| | - Che Wang
- College of Bioscience and Biotechnology, Shenyang Agricultural University, Shenyang Liaoning 110866, China
| | - Xianling Wang
- College of Bioscience and Biotechnology, Shenyang Agricultural University, Shenyang Liaoning 110866, China
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Islam K, Rawoof A, Ahmad I, Dubey M, Momo J, Ramchiary N. Capsicum chinense MYB Transcription Factor Genes: Identification, Expression Analysis, and Their Conservation and Diversification With Other Solanaceae Genomes. FRONTIERS IN PLANT SCIENCE 2021; 12:721265. [PMID: 34721453 PMCID: PMC8548648 DOI: 10.3389/fpls.2021.721265] [Citation(s) in RCA: 8] [Impact Index Per Article: 2.7] [Reference Citation Analysis] [Abstract] [Key Words] [Grants] [Track Full Text] [Subscribe] [Scholar Register] [Received: 06/08/2021] [Accepted: 09/08/2021] [Indexed: 05/27/2023]
Abstract
Myeloblastosis (MYB) genes are important transcriptional regulators of plant growth, development, and secondary metabolic biosynthesis pathways, such as capsaicinoid biosynthesis in Capsicum. Although MYB genes have been identified in Capsicum annuum, no comprehensive study has been conducted on other Capsicum species. We identified a total of 251 and 240 MYB encoding genes in Capsicum chinense MYBs (CcMYBs) and Capsicum baccatum MYBs (CbMYBs). The observation of twenty tandem and 41 segmental duplication events indicated expansion of the MYB gene family in the C. chinense genome. Five CcMYB genes, i.e., CcMYB101, CcMYB46, CcMYB6, CcPHR8, and CcRVE5, and two CaMYBs, i.e., CaMYB3 and CaHHO1, were found within the previously reported capsaicinoid biosynthesis quantitative trait loci. Based on phylogenetic analysis with tomato MYB proteins, the Capsicum MYBs were classified into 24 subgroups supported by conserved amino acid motifs and gene structures. Also, a total of 241 CcMYBs were homologous with 225 C. annuum, 213 C. baccatum, 125 potato, 79 tomato, and 23 Arabidopsis MYBs. Synteny analysis showed that all 251 CcMYBs were collinear with C. annuum, C. baccatum, tomato, potato, and Arabidopsis MYBs spanning over 717 conserved syntenic segments. Using transcriptome data from three fruit developmental stages, a total of 54 CcMYBs and 81 CaMYBs showed significant differential expression patterns. Furthermore, the expression of 24 CcMYBs from the transcriptome data was validated by quantitative real-time (qRT) PCR analysis. Eight out of the 24 CcMYBs validated by the qRT-PCR were highly expressed in fiery hot C. chinense than in the lowly pungent C. annuum. Furthermore, the co-expression analysis revealed several MYB genes clustered with genes from the capsaicinoid, anthocyanin, phenylpropanoid, carotenoid, and flavonoids biosynthesis pathways, and related to determining fruit shape and size. The homology modeling of 126 R2R3 CcMYBs showed high similarity with that of the Arabidopsis R2R3 MYB domain template, suggesting their potential functional similarity at the proteome level. Furthermore, we have identified simple sequence repeat (SSR) motifs in the CcMYB genes, which could be used in Capsicum breeding programs. The functional roles of the identified CcMYBs could be studied further so that they can be manipulated for Capsicum trait improvement.
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Affiliation(s)
- Khushbu Islam
- School of Life Sciences, Jawaharlal Nehru University, New Delhi, India
| | - Abdul Rawoof
- School of Life Sciences, Jawaharlal Nehru University, New Delhi, India
| | - Ilyas Ahmad
- School of Life Sciences, Jawaharlal Nehru University, New Delhi, India
| | - Meenakshi Dubey
- Department of Biotechnology, Delhi Technological University, New Delhi, India
| | - John Momo
- School of Life Sciences, Jawaharlal Nehru University, New Delhi, India
| | - Nirala Ramchiary
- School of Life Sciences, Jawaharlal Nehru University, New Delhi, India
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Uncovering Transcriptional Responses to Fractional Gravity in Arabidopsis Roots. Life (Basel) 2021; 11:life11101010. [PMID: 34685382 PMCID: PMC8539686 DOI: 10.3390/life11101010] [Citation(s) in RCA: 7] [Impact Index Per Article: 2.3] [Reference Citation Analysis] [Abstract] [Key Words] [Track Full Text] [Download PDF] [Figures] [Journal Information] [Subscribe] [Scholar Register] [Received: 08/28/2021] [Revised: 09/14/2021] [Accepted: 09/17/2021] [Indexed: 11/17/2022] Open
Abstract
Although many reports characterize the transcriptional response of Arabidopsis seedlings to microgravity, few investigate the effect of partial or fractional gravity on gene expression. Understanding plant responses to fractional gravity is relevant for plant growth on lunar and Martian surfaces. The plant signaling flight experiment utilized the European Modular Cultivation System (EMCS) onboard the International Space Station (ISS). The EMCS consisted of two rotors within a controlled chamber allowing for two experimental conditions, microgravity (stationary rotor) and simulated gravity in space. Seedlings were grown for 5 days under continuous light in seed cassettes. The arrangement of the seed cassettes within each experimental container results in a gradient of fractional g (in the spinning rotor). To investigate whether gene expression patterns are sensitive to fractional g, we carried out transcriptional profiling of root samples exposed to microgravity or partial g (ranging from 0.53 to 0.88 g). Data were analyzed using DESeq2 with fractional g as a continuous variable in the design model in order to query gene expression across the gravity continuum. We identified a subset of genes whose expression correlates with changes in fractional g. Interestingly, the most responsive genes include those encoding transcription factors, defense, and cell wall-related proteins and heat shock proteins.
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López-Cordova A, Ramírez-Medina H, Silva-Martinez GA, González-Cruz L, Bernardino-Nicanor A, Huanca-Mamani W, Montero-Tavera V, Tovar-Aguilar A, Ramírez-Pimentel JG, Durán-Figueroa NV, Acosta-García G. LEA13 and LEA30 Are Involved in Tolerance to Water Stress and Stomata Density in Arabidopsis thaliana. PLANTS 2021; 10:plants10081694. [PMID: 34451739 PMCID: PMC8400336 DOI: 10.3390/plants10081694] [Citation(s) in RCA: 0] [Impact Index Per Article: 0] [Reference Citation Analysis] [Abstract] [Key Words] [Track Full Text] [Download PDF] [Figures] [Subscribe] [Scholar Register] [Received: 06/09/2021] [Revised: 08/02/2021] [Accepted: 08/10/2021] [Indexed: 11/16/2022]
Abstract
Late embryogenesis abundant (LEA) proteins are a large protein family that mainly function in protecting cells from abiotic stress, but these proteins are also involved in regulating plant growth and development. In this study, we performed a functional analysis of LEA13 and LEA30 from Arabidopsis thaliana. The results showed that the expression of both genes increased when plants were subjected to drought-stressed conditions. The insertional lines lea13 and lea30 were identified for each gene, and both had a T-DNA element in the regulatory region, which caused the genes to be downregulated. Moreover, lea13 and lea30 were more sensitive to drought stress due to their higher transpiration and stomatal spacing. Microarray analysis of the lea13 background showed that genes involved in hormone signaling, stomatal development, and abiotic stress responses were misregulated. Our results showed that LEA proteins are involved in drought tolerance and participate in stomatal density.
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Affiliation(s)
- Abigael López-Cordova
- Departamento de Ingeniería Bioquímica, Tecnológico Nacional de México/IT de Celaya, Antonio García Cubas Pte. #600 esq. Av. Tecnológico, Celaya 38010, Guanajuato, Mexico; (A.L.-C.); (H.R.-M.); (G.-A.S.-M.); (L.G.-C.); (A.B.-N.)
| | - Humberto Ramírez-Medina
- Departamento de Ingeniería Bioquímica, Tecnológico Nacional de México/IT de Celaya, Antonio García Cubas Pte. #600 esq. Av. Tecnológico, Celaya 38010, Guanajuato, Mexico; (A.L.-C.); (H.R.-M.); (G.-A.S.-M.); (L.G.-C.); (A.B.-N.)
| | - Guillermo-Antonio Silva-Martinez
- Departamento de Ingeniería Bioquímica, Tecnológico Nacional de México/IT de Celaya, Antonio García Cubas Pte. #600 esq. Av. Tecnológico, Celaya 38010, Guanajuato, Mexico; (A.L.-C.); (H.R.-M.); (G.-A.S.-M.); (L.G.-C.); (A.B.-N.)
| | - Leopoldo González-Cruz
- Departamento de Ingeniería Bioquímica, Tecnológico Nacional de México/IT de Celaya, Antonio García Cubas Pte. #600 esq. Av. Tecnológico, Celaya 38010, Guanajuato, Mexico; (A.L.-C.); (H.R.-M.); (G.-A.S.-M.); (L.G.-C.); (A.B.-N.)
| | - Aurea Bernardino-Nicanor
- Departamento de Ingeniería Bioquímica, Tecnológico Nacional de México/IT de Celaya, Antonio García Cubas Pte. #600 esq. Av. Tecnológico, Celaya 38010, Guanajuato, Mexico; (A.L.-C.); (H.R.-M.); (G.-A.S.-M.); (L.G.-C.); (A.B.-N.)
| | - Wilson Huanca-Mamani
- Departamento de Producción Agrícola, Facultad de Ciencias Agronómicas, Universidad de Tarapacá, Arica 1000000, Chile;
| | - Víctor Montero-Tavera
- Biotechnology Department, National Institute for Forestry Agriculture and Livestock Research (INIFAP), Celaya 38110, Guanajuato, Mexico;
| | - Andrea Tovar-Aguilar
- Instituto Politécnico Nacional, Unidad Profesional Interdisciplinaria de Biotecnología, Av. Acueducto S/N., Col. Barrio La Laguna Ticomán, México City 07340, Mexico; (A.T.-A.); (N.-V.D.-F.)
| | | | - Noé-Valentín Durán-Figueroa
- Instituto Politécnico Nacional, Unidad Profesional Interdisciplinaria de Biotecnología, Av. Acueducto S/N., Col. Barrio La Laguna Ticomán, México City 07340, Mexico; (A.T.-A.); (N.-V.D.-F.)
| | - Gerardo Acosta-García
- Departamento de Ingeniería Bioquímica, Tecnológico Nacional de México/IT de Celaya, Antonio García Cubas Pte. #600 esq. Av. Tecnológico, Celaya 38010, Guanajuato, Mexico; (A.L.-C.); (H.R.-M.); (G.-A.S.-M.); (L.G.-C.); (A.B.-N.)
- Correspondence: ; Tel.: +52-4616117575 (ext. 5471)
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Han Z, Shang X, Shao L, Wang Y, Zhu X, Fang W, Ma Y. Meta-analysis of the effect of expression of MYB transcription factor genes on abiotic stress. PeerJ 2021; 9:e11268. [PMID: 34164229 PMCID: PMC8194419 DOI: 10.7717/peerj.11268] [Citation(s) in RCA: 3] [Impact Index Per Article: 1.0] [Reference Citation Analysis] [Abstract] [Key Words] [Track Full Text] [Download PDF] [Figures] [Journal Information] [Subscribe] [Scholar Register] [Received: 10/05/2020] [Accepted: 03/23/2021] [Indexed: 01/06/2023] Open
Abstract
Background MYB proteins are a large group of transcription factors. The overexpression of MYB genes has been reported to improve abiotic stress tolerance in plant. However, due to the variety of plant species studied and the types of gene donors/recipients, along with different experimental conditions, it is difficult to interpret the roles of MYB in abiotic stress tolerance from published data. Methods Using meta-analysis approach, we investigated the plant characteristics involved in cold, drought, and salt stress in MYB-overexpressing plants and analyzed the degrees of influence on plant performance by experimental variables. Results The results show that two of the four measured plant parameters in cold-stressed plants, two of the six in drought-stressed, and four of the 13 in salt-stressed were significantly impacted by MYB overexpression by 22% or more, and the treatment medium, donor/recipient species, and donor type significantly influence the effects of MYB-overexpression on drought stress tolerance. Also, the donor/recipient species, donor type, and stress duration all significantly affected the extent of MYB-mediated salt stress tolerance. In summary, this study compiles and analyzes the data across studies to help us understand the complex interactions that dictate the efficacy of heterologous MYB expression designed for improved abiotic stress tolerance in plants.
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Affiliation(s)
- Zhaolan Han
- College of Horticulture, Nanjing Agricultural University, Nanjing, Jiangsu, China
| | - Xiaowen Shang
- College of Horticulture, Nanjing Agricultural University, Nanjing, Jiangsu, China
| | - Lingxia Shao
- College of Horticulture, Nanjing Agricultural University, Nanjing, Jiangsu, China
| | - Ya Wang
- College of Horticulture, Nanjing Agricultural University, Nanjing, Jiangsu, China
| | - Xujun Zhu
- College of Horticulture, Nanjing Agricultural University, Nanjing, Jiangsu, China
| | - Wanping Fang
- College of Horticulture, Nanjing Agricultural University, Nanjing, Jiangsu, China
| | - Yuanchun Ma
- College of Horticulture, Nanjing Agricultural University, Nanjing, Jiangsu, China
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Wang X, Niu Y, Zheng Y. Multiple Functions of MYB Transcription Factors in Abiotic Stress Responses. Int J Mol Sci 2021; 22:ijms22116125. [PMID: 34200125 PMCID: PMC8201141 DOI: 10.3390/ijms22116125] [Citation(s) in RCA: 153] [Impact Index Per Article: 51.0] [Reference Citation Analysis] [Abstract] [Key Words] [MESH Headings] [Download PDF] [Figures] [Journal Information] [Subscribe] [Scholar Register] [Received: 04/30/2021] [Revised: 05/20/2021] [Accepted: 05/25/2021] [Indexed: 01/25/2023] Open
Abstract
Plants face a more volatile environment than other organisms because of their immobility, and they have developed highly efficient mechanisms to adapt to stress conditions. Transcription factors, as an important part of the adaptation process, are activated by different signals and are responsible for the expression of stress-responsive genes. MYB transcription factors, as one of the most widespread transcription factor families in plants, participate in plant development and responses to stresses by combining with MYB cis-elements in promoters of target genes. MYB transcription factors have been extensively studied and have proven to be critical in the biosynthesis of secondary metabolites in plants, including anthocyanins, flavonols, and lignin. Multiple studies have now shown that MYB proteins play diverse roles in the responses to abiotic stresses, such as drought, salt, and cold stresses. However, the regulatory mechanism of MYB proteins in abiotic stresses is still not well understood. In this review, we will focus mainly on the function of Arabidopsis MYB transcription factors in abiotic stresses, especially how MYB proteins participate in these stress responses. We also pay attention to how the MYB proteins are regulated in these processes at both the transcript and protein levels.
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Zhang D, Yang K, Kan Z, Dang H, Feng S, Yang Y, Li L, Hou N, Xu L, Wang X, Malnoy M, Ma F, Hao Y, Guan Q. The regulatory module MdBT2-MdMYB88/MdMYB124-MdNRTs regulates nitrogen usage in apple. PLANT PHYSIOLOGY 2021; 185:1924-1942. [PMID: 33793944 PMCID: PMC8133671 DOI: 10.1093/plphys/kiaa118] [Citation(s) in RCA: 20] [Impact Index Per Article: 6.7] [Reference Citation Analysis] [Abstract] [MESH Headings] [Grants] [Track Full Text] [Subscribe] [Scholar Register] [Received: 10/08/2020] [Accepted: 12/18/2020] [Indexed: 05/04/2023]
Abstract
Less than 40% of the nitrogen (N) fertilizer applied to soil is absorbed by crops. Thus, improving the N use efficiency of crops is critical for agricultural development. However, the underlying regulation of these processes remains largely unknown, particularly in woody plants. By conducting yeast two-hybrid assays, we identified one interacting protein of MdMYB88 and MdMYB124 in apple (Malus × domestica), namely BTB and TAZ domain protein 2 (MdBT2). Ubiquitination and protein stabilization analysis revealed that MdBT2 ubiquitinates and degrades MdMYB88 and MdMYB124 via the 26S proteasome pathway. MdBT2 negatively regulates nitrogen usage as revealed by the reduced fresh weight, dry weight, N concentration, and N usage index of MdBT2 overexpression calli under low-N conditions. In contrast, MdMYB88 and MdMYB124 increase nitrate absorption, allocation, and remobilization by regulating expression of MdNRT2.4, MdNRT1.8, MdNRT1.7, and MdNRT1.5 under N limitation, thereby regulating N usage. The results obtained illustrate the mechanism of a regulatory module comprising MdBT2-MdMYB88/MdMYB124-MdNRTs, through which plants modulate N usage. These data contribute to a molecular approach to improve the N usage of fruit crops under limited N acquisition.
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Affiliation(s)
- Dehui Zhang
- State Key Laboratory of Crop Stress Biology for Arid Areas/Shaanxi Key Laboratory of Apple, College of Horticulture, Northwest A&F University, Yangling, Shaanxi 712100, China
| | - Kuo Yang
- State Key Laboratory of Crop Biology, College of Horticulture Science and Engineering, Shandong Agricultural University, Tai-An, Shandong 271000, China
| | - Zhiyong Kan
- State Key Laboratory of Crop Stress Biology for Arid Areas/Shaanxi Key Laboratory of Apple, College of Horticulture, Northwest A&F University, Yangling, Shaanxi 712100, China
| | - Huan Dang
- State Key Laboratory of Crop Stress Biology for Arid Areas/Shaanxi Key Laboratory of Apple, College of Horticulture, Northwest A&F University, Yangling, Shaanxi 712100, China
| | - Shuxian Feng
- State Key Laboratory of Crop Stress Biology for Arid Areas/Shaanxi Key Laboratory of Apple, College of Horticulture, Northwest A&F University, Yangling, Shaanxi 712100, China
| | - Yusen Yang
- State Key Laboratory of Crop Stress Biology for Arid Areas/Shaanxi Key Laboratory of Apple, College of Horticulture, Northwest A&F University, Yangling, Shaanxi 712100, China
| | - Lei Li
- State Key Laboratory of Crop Stress Biology for Arid Areas/Shaanxi Key Laboratory of Apple, College of Horticulture, Northwest A&F University, Yangling, Shaanxi 712100, China
| | - Nan Hou
- State Key Laboratory of Crop Stress Biology for Arid Areas/Shaanxi Key Laboratory of Apple, College of Horticulture, Northwest A&F University, Yangling, Shaanxi 712100, China
| | - Lingfei Xu
- State Key Laboratory of Crop Stress Biology for Arid Areas/Shaanxi Key Laboratory of Apple, College of Horticulture, Northwest A&F University, Yangling, Shaanxi 712100, China
| | - Xiaofei Wang
- State Key Laboratory of Crop Biology, College of Horticulture Science and Engineering, Shandong Agricultural University, Tai-An, Shandong 271000, China
| | - Mickael Malnoy
- Department of Biology and Genomics of Fruit Plants, Foundation Edmund Mach di San Michele all'Adige, Trento, Italy
| | - Fengwang Ma
- State Key Laboratory of Crop Stress Biology for Arid Areas/Shaanxi Key Laboratory of Apple, College of Horticulture, Northwest A&F University, Yangling, Shaanxi 712100, China
| | - Yujin Hao
- State Key Laboratory of Crop Biology, College of Horticulture Science and Engineering, Shandong Agricultural University, Tai-An, Shandong 271000, China
| | - Qingmei Guan
- State Key Laboratory of Crop Stress Biology for Arid Areas/Shaanxi Key Laboratory of Apple, College of Horticulture, Northwest A&F University, Yangling, Shaanxi 712100, China
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Sajjad M, Wei X, Liu L, Li F, Ge X. Transcriptome Analysis Revealed GhWOX4 Intercedes Myriad Regulatory Pathways to Modulate Drought Tolerance and Vascular Growth in Cotton. Int J Mol Sci 2021; 22:ijms22020898. [PMID: 33477464 PMCID: PMC7829754 DOI: 10.3390/ijms22020898] [Citation(s) in RCA: 14] [Impact Index Per Article: 4.7] [Reference Citation Analysis] [Abstract] [Key Words] [MESH Headings] [Download PDF] [Figures] [Journal Information] [Subscribe] [Scholar Register] [Received: 12/17/2020] [Revised: 01/13/2021] [Accepted: 01/15/2021] [Indexed: 11/17/2022] Open
Abstract
Cotton is a paramount cash crop around the globe. Among all abiotic stresses, drought is a leading cause of cotton growth and yield loss. However, the molecular link between drought stress and vascular growth and development is relatively uncharted. Here, we validated a crucial role of GhWOX4, a transcription factor, modulating drought stress with that of vasculature growth in cotton. Knock-down of GhWOX4 decreased the stem width and severely compromised vascular growth and drought tolerance. Conversely, ectopic expression of GhWOX4 in Arabidopsis enhanced the tolerance to drought stress. Comparative RNAseq analysis revealed auxin responsive protein (AUX/IAA), abscisic acid (ABA), and ethylene were significantly induced. Additionally, MYC-bHLH, WRKY, MYB, homeodomain, and heat-shock transcription factors (HSF) were differentially expressed in control plants as compared to GhWOX4-silenced plants. The promotor zone of GhWOX4 was found congested with plant growth, light, and stress response related cis-elements. differentially expressed genes (DEGs) related to stress, water deprivation, and desiccation response were repressed in drought treated GhWOX4-virus-induced gene silencing (VIGS) plants as compared to control. Gene ontology (GO) functions related to cell proliferation, light response, fluid transport, and flavonoid biosynthesis were over-induced in TRV: 156-0 h/TRV: 156-1 h (control) in comparison to TRV: VIGS-0 h/TRV: VIGS-1 h (GhWOX4-silenced) plants. This study improves our context for elucidating the pivotal role of GhWOX4 transcription factors (TF), which mediates drought tolerance, plays a decisive role in plant growth and development, and is likely involved in different regulatory pathways in cotton.
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Affiliation(s)
- Muhammad Sajjad
- State Key Laboratory of Cotton Biology, Institute of Cotton Research, Chinese Academy of Agricultural Sciences, Anyang 455000, China; (M.S.); (L.L.)
| | - Xi Wei
- Institute of Cotton Research, Henan Normal University Research Base of State Key Laboratory of Cotton Biology, Xinxiang 453000, China;
| | - Lisen Liu
- State Key Laboratory of Cotton Biology, Institute of Cotton Research, Chinese Academy of Agricultural Sciences, Anyang 455000, China; (M.S.); (L.L.)
| | - Fuguang Li
- State Key Laboratory of Cotton Biology, Institute of Cotton Research, Chinese Academy of Agricultural Sciences, Anyang 455000, China; (M.S.); (L.L.)
- Institute of Cotton Research, Henan Normal University Research Base of State Key Laboratory of Cotton Biology, Xinxiang 453000, China;
- Correspondence: (F.L.); (X.G.)
| | - Xiaoyang Ge
- State Key Laboratory of Cotton Biology, Institute of Cotton Research, Chinese Academy of Agricultural Sciences, Anyang 455000, China; (M.S.); (L.L.)
- Institute of Cotton Research, Henan Normal University Research Base of State Key Laboratory of Cotton Biology, Xinxiang 453000, China;
- Correspondence: (F.L.); (X.G.)
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Zhang L, Jiang X, Liu Q, Ahammed GJ, Lin R, Wang L, Shao S, Yu J, Zhou Y. The HY5 and MYB15 transcription factors positively regulate cold tolerance in tomato via the CBF pathway. PLANT, CELL & ENVIRONMENT 2020; 43:2712-2726. [PMID: 32799321 DOI: 10.1111/pce.13868] [Citation(s) in RCA: 48] [Impact Index Per Article: 12.0] [Reference Citation Analysis] [Abstract] [Key Words] [MESH Headings] [Track Full Text] [Subscribe] [Scholar Register] [Received: 11/06/2019] [Revised: 08/11/2020] [Accepted: 08/11/2020] [Indexed: 05/25/2023]
Abstract
The induction of C-repeat binding factors (CBFs) is crucial for plant survival at low temperatures. Therefore, understanding the mechanisms that regulate CBF transcription is vital for the future development of crops with increased cold tolerance. Here, we provide evidence for the existence of a LONG HYPOCOTYL 5 (HY5)-MYB15-CBFs transcriptional cascade that plays a crucial role in the cold response in tomato. The exposure of tomato plants to cold (4°C) increased the levels of HY5, MYB15 and CBFs transcripts. Moreover, mutations in HY5 or MYB15 decreased the levels of CBF transcripts. In contrast, overexpression of HY5 or MYB15 increased CBF transcript abundance. Crucially, the HY5 transcription factor activated the expression of MYB15 by directly binding to the promoter region, while both HY5 and MYB15 activated the expression of CBF1, CBF2 and CBF3. Taken together, these data show that HY5 can directly regulate CBF transcript levels, and also influence CBF expression indirectly via MYB15. The coordinated action of HY5 and MYB15 allows precise regulation of CBF expression and subsequent cold tolerance. These findings provide an improved understanding of the molecular mechanisms affording transcriptional regulation of CBFs, which can be exploited in the future to enhance cold tolerance in crops.
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Affiliation(s)
- Luyue Zhang
- Department of Horticulture, Zijingang Campus, Zhejiang University, Hangzhou, China
| | - Xiaochun Jiang
- Department of Horticulture, Zijingang Campus, Zhejiang University, Hangzhou, China
| | - Qianying Liu
- Department of Horticulture, Zijingang Campus, Zhejiang University, Hangzhou, China
| | - Golam Jalal Ahammed
- Department of Horticulture, College of Forestry, Henan University of Science and Technology, Luoyang, China
| | - Rui Lin
- Department of Horticulture, Zijingang Campus, Zhejiang University, Hangzhou, China
| | - Lingyu Wang
- Department of Horticulture, Zijingang Campus, Zhejiang University, Hangzhou, China
| | - Shujun Shao
- Department of Horticulture, Zijingang Campus, Zhejiang University, Hangzhou, China
| | - Jingquan Yu
- Department of Horticulture, Zijingang Campus, Zhejiang University, Hangzhou, China
- Key Laboratory of Plant Growth, Development and Quality Improvement, Agricultural Ministry of China, Hangzhou, China
| | - Yanhong Zhou
- Department of Horticulture, Zijingang Campus, Zhejiang University, Hangzhou, China
- Zhejiang Provincial Key Laboratory of Horticultural Plant Integrative Biology, Hangzhou, China
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Zhang CY, Liu HC, Zhang XS, Guo QX, Bian SM, Wang JY, Zhai LL. VcMYB4a, an R2R3-MYB transcription factor from Vaccinium corymbosum, negatively regulates salt, drought, and temperature stress. Gene 2020; 757:144935. [PMID: 32653482 DOI: 10.1016/j.gene.2020.144935] [Citation(s) in RCA: 10] [Impact Index Per Article: 2.5] [Reference Citation Analysis] [Abstract] [Key Words] [Track Full Text] [Journal Information] [Subscribe] [Scholar Register] [Received: 03/13/2020] [Revised: 06/22/2020] [Accepted: 07/01/2020] [Indexed: 11/26/2022]
Abstract
MYB transcription factors (TFs) play important roles in the plant's response to abiotic stress. In this study, we cloned a novel MYB TF gene from Vaccinium corymbosum (blueberry) using rapid amplification of cDNA ends (RACE). The cDNA contained a 798-bp open reading frame that encodes a 265-amino acid protein. VcMYB4a possessed a C2/EAR-repressor motif domain and phylogenetic analysis showed that it clustered into a subgroup 4 with six Arabidopsis thaliana MYBs. Quantitative RT-PCR analysis demonstrated that VcMYB4a expression was downregulated by salt, drought, and cold treatment, but was induced by freezing and heat. Overexpression of VcMYB4a in blueberry callus enhanced sensitivity to salt, drought, cold, freezing, and heat stress. These results indicate that VcMYB4a may be an important repressor of abiotic stress in blueberry.
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Affiliation(s)
- Chun-Yu Zhang
- College of Plant Science, Jilin University, Changchun 130062, China.
| | - Hong-Chao Liu
- Songliao Water Resources Protection Scientific Research Institute, Changchun 130021, China
| | - Xin-Sheng Zhang
- College of Plant Science, Jilin University, Changchun 130062, China
| | - Qing-Xun Guo
- College of Plant Science, Jilin University, Changchun 130062, China
| | - Shao-Min Bian
- College of Plant Science, Jilin University, Changchun 130062, China
| | - Jing-Ying Wang
- College of Plant Science, Jilin University, Changchun 130062, China
| | - Lu-Lu Zhai
- College of Plant Science, Jilin University, Changchun 130062, China
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Geng D, Shen X, Xie Y, Yang Y, Bian R, Gao Y, Li P, Sun L, Feng H, Ma F, Guan Q. Regulation of phenylpropanoid biosynthesis by MdMYB88 and MdMYB124 contributes to pathogen and drought resistance in apple. HORTICULTURE RESEARCH 2020; 7:102. [PMID: 32637130 PMCID: PMC7327078 DOI: 10.1038/s41438-020-0324-2] [Citation(s) in RCA: 40] [Impact Index Per Article: 10.0] [Reference Citation Analysis] [Abstract] [Key Words] [Grants] [Track Full Text] [Subscribe] [Scholar Register] [Received: 01/06/2020] [Accepted: 04/16/2020] [Indexed: 05/12/2023]
Abstract
MdMYB88 and MdMYB124 have been demonstrated to be responsible for lignin accumulation in apple under drought stress. In this study, using a metabolomic approach, we identified differentially accumulated phenylpropanoid and flavonoid metabolites in MdMYB88/124 transgenic RNAi plants under control and long-term drought stress conditions in apple roots. We confirmed the regulation of phenylalanine by MdMYB88 and MdMYB124 via UPLC-MS in apple roots under both control and drought conditions. Using Electrophoretic Mobility Shift Assay (EMSA) and ChIP-quantitative PCR (qPCR) analyses, we found that MdMYB88 positively regulates the MdCM2 gene, which is responsible for phenylalanine biosynthesis, through binding to its promoter region. Under long-term drought conditions, MdMYB88/124 RNAi plants consistently accumulated increased amounts of H2O2 and MDA, while MdMYB88 and MdMYB124 overexpression plants accumulated decreased amounts of H2O2 and MDA. We also examined the accumulation of metabolites in the phenylpropanoid biosynthesis pathway in the leaves of MdMYB88 and MdMYB124 transgenic apple plants after long-term drought stress. We found that metabolites responsible for plant defense, including phenylpropanoids and flavonoids, accumulated less in the RNAi plants but more in the overexpression plants under both control and drought conditions. We further demonstrated that MdMYB88/124 RNAi plants were more sensitive to Alternaria alternata f. sp. mali and Valsa mali, two pathogens that currently severely threaten apple production. In contrast, MdMYB88 and MdMYB124 overexpression plants were more tolerant to these pathogens. The cumulative results of this study provided evidence for secondary metabolite regulation by MdMYB88 and MdMYB124, further explained the molecular roles of MdMYB88 and MdMYB124 in drought resistance, and provided information concerning molecular aspects of their roles in disease resistance.
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Affiliation(s)
- Dali Geng
- State Key Laboratory of Crop Stress Biology for Arid Areas/Shaanxi Key Laboratory of Apple, College of Horticulture, Northwest A&F University, Yangling, Shaanxi 712100 China
| | - Xiaoxia Shen
- State Key Laboratory of Crop Stress Biology for Arid Areas/Shaanxi Key Laboratory of Apple, College of Horticulture, Northwest A&F University, Yangling, Shaanxi 712100 China
| | - Yinpeng Xie
- State Key Laboratory of Crop Stress Biology for Arid Areas/Shaanxi Key Laboratory of Apple, College of Horticulture, Northwest A&F University, Yangling, Shaanxi 712100 China
| | - Yusen Yang
- State Key Laboratory of Crop Stress Biology for Arid Areas/Shaanxi Key Laboratory of Apple, College of Horticulture, Northwest A&F University, Yangling, Shaanxi 712100 China
| | - Ruiling Bian
- State Key Laboratory of Crop Stress Biology for Arid Areas, College of Plant Protection, Northwest A&F University, Yangling, Shaanxi 712100 China
| | - Yuqi Gao
- State Key Laboratory of Crop Stress Biology for Arid Areas, College of Plant Protection, Northwest A&F University, Yangling, Shaanxi 712100 China
| | - Pengmin Li
- State Key Laboratory of Crop Stress Biology for Arid Areas/Shaanxi Key Laboratory of Apple, College of Horticulture, Northwest A&F University, Yangling, Shaanxi 712100 China
| | - Liying Sun
- State Key Laboratory of Crop Stress Biology for Arid Areas, College of Plant Protection, Northwest A&F University, Yangling, Shaanxi 712100 China
| | - Hao Feng
- State Key Laboratory of Crop Stress Biology for Arid Areas, College of Plant Protection, Northwest A&F University, Yangling, Shaanxi 712100 China
| | - Fengwang Ma
- State Key Laboratory of Crop Stress Biology for Arid Areas/Shaanxi Key Laboratory of Apple, College of Horticulture, Northwest A&F University, Yangling, Shaanxi 712100 China
| | - Qingmei Guan
- State Key Laboratory of Crop Stress Biology for Arid Areas/Shaanxi Key Laboratory of Apple, College of Horticulture, Northwest A&F University, Yangling, Shaanxi 712100 China
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Zhou H, He Y, Zhu Y, Li M, Song S, Bo W, Li Y, Pang X. Comparative transcriptome profiling reveals cold stress responsiveness in two contrasting Chinese jujube cultivars. BMC PLANT BIOLOGY 2020; 20:240. [PMID: 32460709 PMCID: PMC7254757 DOI: 10.1186/s12870-020-02450-z] [Citation(s) in RCA: 8] [Impact Index Per Article: 2.0] [Reference Citation Analysis] [Abstract] [Key Words] [MESH Headings] [Grants] [Track Full Text] [Subscribe] [Scholar Register] [Received: 12/20/2019] [Accepted: 05/19/2020] [Indexed: 05/27/2023]
Abstract
BACKGROUND Low temperature is a major factor influencing the growth and development of Chinese jujube (Ziziphus jujuba Mill.) in cold winter and spring. Little is known about the molecular mechanisms enabling jujube to cope with different freezing stress conditions. To elucidate the freezing-related molecular mechanism, we conducted comparative transcriptome analysis between 'Dongzao' (low freezing tolerance cultivar) and 'Jinsixiaozao' (high freezing tolerance cultivar) using RNA-Seq. RESULTS More than 20,000 genes were detected at chilling (4 °C) and freezing (- 10 °C, - 20 °C, - 30 °C and - 40 °C) stress between the two cultivars. The numbers of differentially expressed genes (DEGs) between the two cultivars were 1831, 2030, 1993, 1845 and 2137 under the five treatments. Functional enrichment analysis suggested that the metabolic pathway, response to stimulus and catalytic activity were significantly enriched under stronger freezing stress. Among the DEGs, nine participated in the Ca2+ signal pathway, thirty-two were identified to participate in sucrose metabolism, and others were identified to participate in the regulation of ROS, plant hormones and antifreeze proteins. In addition, important transcription factors (WRKY, AP2/ERF, NAC and bZIP) participating in freezing stress were activated under different degrees of freezing stress. CONCLUSIONS Our research first provides a more comprehensive understanding of DEGs involved in freezing stress at the transcriptome level in two Z. jujuba cultivars with different freezing tolerances. These results may help to elucidate the molecular mechanism of freezing tolerance in jujube and also provides new insights and candidate genes for genetically enhancing freezing stress tolerance.
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Affiliation(s)
- Heying Zhou
- Beijing Advanced Innovation Center for Tree Breeding by Molecular Design, National Engineering Laboratory for Tree Breeding, Key Laboratory of Genetics and Breeding in Forest Trees and Ornamental Plants, Ministry of Education, College of Biological Sciences and Biotechnology, Beijing Forestry University, Beijing, 100083, China
| | - Ying He
- Beijing Advanced Innovation Center for Tree Breeding by Molecular Design, National Engineering Laboratory for Tree Breeding, Key Laboratory of Genetics and Breeding in Forest Trees and Ornamental Plants, Ministry of Education, College of Biological Sciences and Biotechnology, Beijing Forestry University, Beijing, 100083, China
| | - Yongsheng Zhu
- Institute of Crop, Wuhan Academy of Agricultural Sciences, Wuhan, 430074, China
| | - Meiyu Li
- Beijing Advanced Innovation Center for Tree Breeding by Molecular Design, National Engineering Laboratory for Tree Breeding, Key Laboratory of Genetics and Breeding in Forest Trees and Ornamental Plants, Ministry of Education, College of Biological Sciences and Biotechnology, Beijing Forestry University, Beijing, 100083, China
| | - Shuang Song
- Beijing Advanced Innovation Center for Tree Breeding by Molecular Design, National Engineering Laboratory for Tree Breeding, Key Laboratory of Genetics and Breeding in Forest Trees and Ornamental Plants, Ministry of Education, College of Biological Sciences and Biotechnology, Beijing Forestry University, Beijing, 100083, China
| | - Wenhao Bo
- Beijing Advanced Innovation Center for Tree Breeding by Molecular Design, National Engineering Laboratory for Tree Breeding, Key Laboratory of Genetics and Breeding in Forest Trees and Ornamental Plants, Ministry of Education, College of Biological Sciences and Biotechnology, Beijing Forestry University, Beijing, 100083, China
| | - Yingyue Li
- Beijing Advanced Innovation Center for Tree Breeding by Molecular Design, National Engineering Laboratory for Tree Breeding, Key Laboratory of Genetics and Breeding in Forest Trees and Ornamental Plants, Ministry of Education, College of Biological Sciences and Biotechnology, Beijing Forestry University, Beijing, 100083, China
| | - Xiaoming Pang
- Beijing Advanced Innovation Center for Tree Breeding by Molecular Design, National Engineering Laboratory for Tree Breeding, Key Laboratory of Genetics and Breeding in Forest Trees and Ornamental Plants, Ministry of Education, College of Biological Sciences and Biotechnology, Beijing Forestry University, Beijing, 100083, China.
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Sara HC, René GH, Rosa UC, Angela KG, Clelia DLP. Agave angustifolia albino plantlets lose stomatal physiology function by changing the development of the stomatal complex due to a molecular disruption. Mol Genet Genomics 2020; 295:787-805. [PMID: 31925511 DOI: 10.1007/s00438-019-01643-y] [Citation(s) in RCA: 6] [Impact Index Per Article: 1.5] [Reference Citation Analysis] [Abstract] [Key Words] [Track Full Text] [Journal Information] [Subscribe] [Scholar Register] [Received: 08/05/2019] [Accepted: 12/24/2019] [Indexed: 12/31/2022]
Abstract
Stomatal development is regulated by signaling pathways that function in multiple cellular programs, including cell fate and cell division. However, recent studies suggest that molecular signals are affected by CO2 concentration, light intensity, and water pressure deficit, thereby modifying distribution patterns and stomatic density and likely other foliar features as well. Here, we show that in addition to lacking chloroplasts, the albino somaclonal variants of Agave angustifolia Haw present an irregular epidermal development and morphological abnormalities of the stomatal complex, affecting the link between the stomatal conductance, transpiration and photosynthesis, as well as the development of the stoma in the upper part of the leaves. In addition, we show that changes in the transcriptional levels of SPEECHLESS (SPCH), TOO MANY MOUTHS (TMM), MITOGEN-ACTIVATED PROTEIN KINASE 4 and 6 (MAPK4 and MAPK6) and FOUR LIPS (FLP), all from the meristematic tissue and leaf, differentially modulate the stomatal function between the green, variegated and albino in vitro plantlets of A. angustifolia. Likewise, we highlight the conservation of microRNAs miR166 and miR824 as part of the regulation of AGAMOUS-LIKE16 (AGL16), recently associated with the control of cell divisions that regulate the development of the stomatal complex. We propose that molecular alterations happening in albino cells formed from the meristematic base can lead to different anomalies during the transition and specification of the stomatal cell state in leaf development of albino plantlets. We conclude that the molecular alterations in the meristematic cells in albino plants might be the main variable associated with stoma distribution in this phenotype.
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Affiliation(s)
- Hernández-Castellano Sara
- Centro de Investigación Científica de Yucatán A.C., Unidad de Biotecnología, Calle 43 N°130 x 32 y 34, Chuburná de Hidalgo, 97205, Mérida, Yucatán, Mexico
| | - Garruña-Hernández René
- CONACYT-Instituto Tecnológico de Conkal, Avenida Tecnológico s/n Conkal, 97345, Mérida, Yucatán, Mexico
| | - Us-Camas Rosa
- Centro de Investigación Científica de Yucatán A.C., Unidad de Biotecnología, Calle 43 N°130 x 32 y 34, Chuburná de Hidalgo, 97205, Mérida, Yucatán, Mexico
| | - Kú-Gonzalez Angela
- Centro de Investigación Científica de Yucatán A.C., Unidad de Bioquímica y Biología Molecular de Plantas, Calle 43 N° 130 x 32 y 34, Chuburná de Hidalgo, 97205, Mérida, Yucatán, Mexico
| | - De-la-Peña Clelia
- Centro de Investigación Científica de Yucatán A.C., Unidad de Biotecnología, Calle 43 N°130 x 32 y 34, Chuburná de Hidalgo, 97205, Mérida, Yucatán, Mexico.
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More P, Agarwal P, Joshi PS, Agarwal PK. The JcWRKY tobacco transgenics showed improved photosynthetic efficiency and wax accumulation during salinity. Sci Rep 2019; 9:19617. [PMID: 31871315 PMCID: PMC6928016 DOI: 10.1038/s41598-019-56087-6] [Citation(s) in RCA: 8] [Impact Index Per Article: 1.6] [Reference Citation Analysis] [Abstract] [Key Words] [MESH Headings] [Track Full Text] [Download PDF] [Figures] [Journal Information] [Subscribe] [Scholar Register] [Received: 01/09/2019] [Accepted: 12/06/2019] [Indexed: 12/02/2022] Open
Abstract
Salinity is one of the major factors negatively affecting crop productivity. WRKY transcription factors (TFs) are involved in salicylic acid (SA) mediated cellular reactive oxygen species homeostasis in response to different stresses, including salinity. Therefore, the effect of NaCl, NaCl + SA and SA treatments on different photosynthesis-related parameters and wax metabolites were studied in the Jatropha curcas WRKY (JcWRKY) overexpressing tobacco lines. JcWRKY transgenics showed improved photosynthesis rate, stomatal conductance, intercellular CO2 concentration/ambient CO2 concentration ratio (Ci/Ca ratio), electron transport rate (ETR), photosynthesis efficiency (Fv/Fm), photochemical quenching (qP), non-photochemical quenching (NPQ) and quantum yield of PSII electron transport (ΦPSII) in response to salinity stress, while exogenous SA application had subtle effect on these parameters. Alkane, the major constituent of wax showed maximum accumulation in transgenics exposed to NaCl. Other wax components like fatty alcohol, carboxylic acid and fatty acid were also higher in transgenics with NaCl + SA and SA treatments. Interestingly, the transgenics showed a higher number of open stomata in treated plants as compared to wild type (WT), indicating less perception of stress by the transgenics. Improved salinity tolerance in JcWRKY overexpressing tobacco transgenics is associated with photosynthetic efficiency and wax accumulation, mediated by efficient SA signalling. The transgenics showed differential regulation of genes related to photosynthesis (NtCab40, NtLhcb5 and NtRca1), wax accumulation (NtWIN1) and stomatal regulation (NtMUTE, NtMYB-like, NtNCED3-2 and NtPIF3). The present study indicates that JcWRKY is a potential TF facilitating improved photosynthesis with the wax metabolic co-ordination in transgenics during stress.
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Affiliation(s)
- Prashant More
- Plant Omics Division, CSIR-Central Salt and Marine Chemicals Research Institute (CSIR-CSMCRI), Council of Scientific & Industrial Research (CSIR), Gijubhai Badheka Marg, Bhavnagar, 364 002, Gujarat, India
- Academy of Scientific and Innovative Research (AcSIR), Ghaziabad, 201002, India
| | - Parinita Agarwal
- Plant Omics Division, CSIR-Central Salt and Marine Chemicals Research Institute (CSIR-CSMCRI), Council of Scientific & Industrial Research (CSIR), Gijubhai Badheka Marg, Bhavnagar, 364 002, Gujarat, India.
| | - Priyanka S Joshi
- Plant Omics Division, CSIR-Central Salt and Marine Chemicals Research Institute (CSIR-CSMCRI), Council of Scientific & Industrial Research (CSIR), Gijubhai Badheka Marg, Bhavnagar, 364 002, Gujarat, India
- Academy of Scientific and Innovative Research (AcSIR), Ghaziabad, 201002, India
| | - Pradeep K Agarwal
- Plant Omics Division, CSIR-Central Salt and Marine Chemicals Research Institute (CSIR-CSMCRI), Council of Scientific & Industrial Research (CSIR), Gijubhai Badheka Marg, Bhavnagar, 364 002, Gujarat, India
- Academy of Scientific and Innovative Research (AcSIR), Ghaziabad, 201002, India
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Ding H, Yuan G, Mo S, Qian Y, Wu Y, Chen Q, Xu X, Wu X, Ge C. Genome-wide analysis of the plant-specific VQ motif-containing proteins in tomato (Solanum lycopersicum) and characterization of SlVQ6 in thermotolerance. PLANT PHYSIOLOGY AND BIOCHEMISTRY : PPB 2019; 143:29-39. [PMID: 31479880 DOI: 10.1016/j.plaphy.2019.08.019] [Citation(s) in RCA: 30] [Impact Index Per Article: 6.0] [Reference Citation Analysis] [Abstract] [Key Words] [MESH Headings] [Track Full Text] [Subscribe] [Scholar Register] [Received: 06/24/2019] [Revised: 08/16/2019] [Accepted: 08/25/2019] [Indexed: 05/12/2023]
Abstract
The VQ motif-containing (VQ) proteins are plant-specific proteins with a conserved "FxxhVQxhTG" amino acid sequence, which regulate plant growth and development. Little is known, however, about the function of VQ proteins in tomato (Solanum lycopersicum). Here, a total of 26 SlVQ proteins were confirmed and characterized using a comprehensive genome-wide analysis. The SlVQ proteins all contain the conserved motif with seven variations, which are classified into eight groups (I, II, IV-VI, VIII-X). Most of them were predicted to be localized in the nucleus. Besides, a network including SlVQ proteins interaction with WRKY transcription factors (SlWRKYs) and mitogen-activated protein kinases (SlMPKs) is proposed. In addition, among the SlVQ genes, SlVQ6 was expressed in the range of organs and tissues with the highest levels and could response to different stresses. Ectopically overexpression of SlVQ6 in Arabidopsis plants decreased high temperature tolerance. RNA sequencing analysis revealed that several stress-related genes, such as HSP70-4, RD20, GolS1 and AT4g36010 were down-regulated in SlVQ6 overexpressing plants compared to these in wild-type under normal growth conditions. This study provides critical information about SlVQ genes and their encoded proteins, as well as further research on SlVQ functions in tomato growth and development.
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Affiliation(s)
- Haidong Ding
- Key Laboratory of Crop Genetics and Physiology of Jiangsu Province/Key Laboratory of Plant Functional Genomics of the Ministry of Education, College of Bioscience and Biotechnology, Yangzhou University, Yangzhou, 225009, China; Co-Innovation Center for Modern Production Technology of Grain Crops of Jiangsu Province/Joint International Research Laboratory of Agriculture & Agri-Product Safety of the Ministry of Education, Yangzhou University, Yangzhou, 225009, China.
| | - Guibo Yuan
- Key Laboratory of Crop Genetics and Physiology of Jiangsu Province/Key Laboratory of Plant Functional Genomics of the Ministry of Education, College of Bioscience and Biotechnology, Yangzhou University, Yangzhou, 225009, China
| | - Shuangrong Mo
- Key Laboratory of Crop Genetics and Physiology of Jiangsu Province/Key Laboratory of Plant Functional Genomics of the Ministry of Education, College of Bioscience and Biotechnology, Yangzhou University, Yangzhou, 225009, China
| | - Yin Qian
- Key Laboratory of Crop Genetics and Physiology of Jiangsu Province/Key Laboratory of Plant Functional Genomics of the Ministry of Education, College of Bioscience and Biotechnology, Yangzhou University, Yangzhou, 225009, China
| | - Yuan Wu
- Key Laboratory of Crop Genetics and Physiology of Jiangsu Province/Key Laboratory of Plant Functional Genomics of the Ministry of Education, College of Bioscience and Biotechnology, Yangzhou University, Yangzhou, 225009, China
| | - Qi Chen
- Key Laboratory of Crop Genetics and Physiology of Jiangsu Province/Key Laboratory of Plant Functional Genomics of the Ministry of Education, College of Bioscience and Biotechnology, Yangzhou University, Yangzhou, 225009, China
| | - Xiaoying Xu
- Key Laboratory of Crop Genetics and Physiology of Jiangsu Province/Key Laboratory of Plant Functional Genomics of the Ministry of Education, College of Bioscience and Biotechnology, Yangzhou University, Yangzhou, 225009, China; Co-Innovation Center for Modern Production Technology of Grain Crops of Jiangsu Province/Joint International Research Laboratory of Agriculture & Agri-Product Safety of the Ministry of Education, Yangzhou University, Yangzhou, 225009, China
| | - Xiaoxia Wu
- Key Laboratory of Crop Genetics and Physiology of Jiangsu Province/Key Laboratory of Plant Functional Genomics of the Ministry of Education, College of Bioscience and Biotechnology, Yangzhou University, Yangzhou, 225009, China; Co-Innovation Center for Modern Production Technology of Grain Crops of Jiangsu Province/Joint International Research Laboratory of Agriculture & Agri-Product Safety of the Ministry of Education, Yangzhou University, Yangzhou, 225009, China
| | - Cailin Ge
- Key Laboratory of Crop Genetics and Physiology of Jiangsu Province/Key Laboratory of Plant Functional Genomics of the Ministry of Education, College of Bioscience and Biotechnology, Yangzhou University, Yangzhou, 225009, China; Co-Innovation Center for Modern Production Technology of Grain Crops of Jiangsu Province/Joint International Research Laboratory of Agriculture & Agri-Product Safety of the Ministry of Education, Yangzhou University, Yangzhou, 225009, China.
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Diray-Arce J, Knowles A, Suvorov A, O’Brien J, Hansen C, Bybee SM, Gul B, Khan MA, Nielsen BL. Identification and evolutionary characterization of salt-responsive transcription factors in the succulent halophyte Suaeda fruticosa. PLoS One 2019; 14:e0222940. [PMID: 31545841 PMCID: PMC6756544 DOI: 10.1371/journal.pone.0222940] [Citation(s) in RCA: 5] [Impact Index Per Article: 1.0] [Reference Citation Analysis] [Abstract] [MESH Headings] [Grants] [Track Full Text] [Download PDF] [Figures] [Journal Information] [Subscribe] [Scholar Register] [Received: 06/12/2019] [Accepted: 09/10/2019] [Indexed: 01/05/2023] Open
Abstract
Transcription factors are key regulatory elements that affect gene expression in response to specific signals, including environmental stresses such as salinity. Halophytes are specialized plants that have the ability to complete their life cycle in saline environments. In this study we have identified and characterized the evolutionary relationships of putative transcription factors (TF) in an obligate succulent halophyte, Suaeda fruticosa, that are involved in conferring salt tolerance. Using RNA-seq data we have analyzed the expression patterns of certain TF families, predicted protein-protein interactions, and analyzed evolutionary trajectories to elucidate their possible roles in salt tolerance. We have detected the top differentially expressed (DE) transcription factor families (MYB, CAMTA, MADS-box and bZIP) that show the most pronounced response to salinity. The majority of DE genes in the four aforementioned TF families cluster together on TF phylogenetic trees, which suggests common evolutionary origins and trajectories. This research represents the first comprehensive TF study of a leaf succulent halophyte including their evolutionary relationships with TFs in other halophyte and salt-senstive plants. These findings provide a foundation for understanding the function of salt-responsive transcription factors in salt tolerance and associated gene regulation in plants.
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Affiliation(s)
- Joann Diray-Arce
- Department of Microbiology and Molecular Biology, Brigham Young University, Provo, Utah, United States of America
| | - Alisa Knowles
- Department of Microbiology and Molecular Biology, Brigham Young University, Provo, Utah, United States of America
| | - Anton Suvorov
- Department of Biology, Brigham Young University, Provo, Utah, United States of America
| | - Jacob O’Brien
- Department of Microbiology and Molecular Biology, Brigham Young University, Provo, Utah, United States of America
| | - Collin Hansen
- Department of Microbiology and Molecular Biology, Brigham Young University, Provo, Utah, United States of America
| | - Seth M. Bybee
- Department of Biology, Brigham Young University, Provo, Utah, United States of America
| | - Bilquees Gul
- Institute of Sustainable Halophyte Utilization, University of Karachi, Karachi, Pakistan
| | - M. Ajmal Khan
- Institute of Sustainable Halophyte Utilization, University of Karachi, Karachi, Pakistan
| | - Brent L. Nielsen
- Department of Microbiology and Molecular Biology, Brigham Young University, Provo, Utah, United States of America
- * E-mail:
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An C, Sheng L, Du X, Wang Y, Zhang Y, Song A, Jiang J, Guan Z, Fang W, Chen F, Chen S. Overexpression of CmMYB15 provides chrysanthemum resistance to aphids by regulating the biosynthesis of lignin. HORTICULTURE RESEARCH 2019; 6:84. [PMID: 31645945 PMCID: PMC6804602 DOI: 10.1038/s41438-019-0166-y] [Citation(s) in RCA: 37] [Impact Index Per Article: 7.4] [Reference Citation Analysis] [Abstract] [Key Words] [Grants] [Track Full Text] [Subscribe] [Scholar Register] [Received: 02/17/2019] [Revised: 05/10/2019] [Accepted: 05/17/2019] [Indexed: 05/27/2023]
Abstract
MYB transcription factors are widely involved in the development of and physiological processes in plants. Here, we isolated the chrysanthemum R2R3-MYB family transcription factor CmMYB15, a homologous gene of AtMYB15. It was demonstrated that CmMYB15 expression was induced by aphids and that CmMYB15 could bind to AC elements, which usually exist in the promoter of lignin biosynthesis genes. Overexpression of CmMYB15 in chrysanthemum enhanced the resistance of aphids. Additionally, the content of lignin and the expression of several lignin biosynthesis genes increased. In summary, the results indicate that CmMYB15 regulates lignin biosynthesis genes that enhance the resistance of chrysanthemum to aphids.
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Affiliation(s)
- Cong An
- State Key Laboratory of Crop Genetics and Germplasm Enhancement, the Key Laboratory of Landscaping, Ministry of Agriculture, College of Horticulture, Nanjing Agricultural University, Nanjing, 210095 China
| | - Liping Sheng
- State Key Laboratory of Crop Genetics and Germplasm Enhancement, the Key Laboratory of Landscaping, Ministry of Agriculture, College of Horticulture, Nanjing Agricultural University, Nanjing, 210095 China
| | - Xinping Du
- State Key Laboratory of Crop Genetics and Germplasm Enhancement, the Key Laboratory of Landscaping, Ministry of Agriculture, College of Horticulture, Nanjing Agricultural University, Nanjing, 210095 China
| | - Yinjie Wang
- State Key Laboratory of Crop Genetics and Germplasm Enhancement, the Key Laboratory of Landscaping, Ministry of Agriculture, College of Horticulture, Nanjing Agricultural University, Nanjing, 210095 China
| | - Yi Zhang
- State Key Laboratory of Crop Genetics and Germplasm Enhancement, the Key Laboratory of Landscaping, Ministry of Agriculture, College of Horticulture, Nanjing Agricultural University, Nanjing, 210095 China
| | - Aiping Song
- State Key Laboratory of Crop Genetics and Germplasm Enhancement, the Key Laboratory of Landscaping, Ministry of Agriculture, College of Horticulture, Nanjing Agricultural University, Nanjing, 210095 China
| | - Jiafu Jiang
- State Key Laboratory of Crop Genetics and Germplasm Enhancement, the Key Laboratory of Landscaping, Ministry of Agriculture, College of Horticulture, Nanjing Agricultural University, Nanjing, 210095 China
| | - Zhiyong Guan
- State Key Laboratory of Crop Genetics and Germplasm Enhancement, the Key Laboratory of Landscaping, Ministry of Agriculture, College of Horticulture, Nanjing Agricultural University, Nanjing, 210095 China
| | - Weimin Fang
- State Key Laboratory of Crop Genetics and Germplasm Enhancement, the Key Laboratory of Landscaping, Ministry of Agriculture, College of Horticulture, Nanjing Agricultural University, Nanjing, 210095 China
| | - Fadi Chen
- State Key Laboratory of Crop Genetics and Germplasm Enhancement, the Key Laboratory of Landscaping, Ministry of Agriculture, College of Horticulture, Nanjing Agricultural University, Nanjing, 210095 China
| | - Sumei Chen
- State Key Laboratory of Crop Genetics and Germplasm Enhancement, the Key Laboratory of Landscaping, Ministry of Agriculture, College of Horticulture, Nanjing Agricultural University, Nanjing, 210095 China
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Wang Z, Li J, Mao Y, Zhang M, Wang R, Hu Y, Mao Z, Shen X. Transcriptional regulation of MdPIN3 and MdPIN10 by MdFLP during apple self-rooted stock adventitious root gravitropism. BMC PLANT BIOLOGY 2019; 19:229. [PMID: 31146692 PMCID: PMC6543673 DOI: 10.1186/s12870-019-1847-2] [Citation(s) in RCA: 4] [Impact Index Per Article: 0.8] [Reference Citation Analysis] [Abstract] [Key Words] [MESH Headings] [Grants] [Track Full Text] [Subscribe] [Scholar Register] [Received: 03/21/2019] [Accepted: 05/24/2019] [Indexed: 05/03/2023]
Abstract
BACKGROUND The close planting of dwarfing self-rooted rootstocks is currently a widely used method for apple production; however, self-rooted rootstocks are weak with shallow roots and poor grounding. Therefore, understanding the molecular mechanisms that establish the gravitropic set-point angles (GSAs) of the adventitious roots of self-rooted apple stocks is important for developing self-rooted apple rootstock cultivars with deep roots. RESULTS We report that the apple FOUR LIPS (MdFLP), an R2R3-MYB transcription factor (TF), functions in establishing the GSA of the adventitious roots of self-rooted apple stocks in response to gravity. Biochemical analyses demonstrate that MdFLP directly binds to the promoters of two auxin efflux carriers, MdPIN3 and MdPIN10, that are involved in auxin transport, activates their transcriptional expression, and thereby promotes the development of adventitious roots in self-rooted apple stocks. Additionally, the apple auxin response factor MdARF19 influences the expression of those auxin efflux carriers and the establishment of the GSA of adventitious roots of apple in response to gravity by directly activating the expression of MdFLP. CONCLUSION Our findings provide new insights into the transcriptional regulation of MdFLP by the auxin response factor MdARF19 in the regulation of the GSA of adventitious roots of self-rooted apple stocks in response to gravity.
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Affiliation(s)
- Zenghui Wang
- State Key Laboratory of Crop Biology; Key Laboratory of Biology and Genetic Improvement of Horticultural Crops (Huanghuai Region), Ministry of Agriculture; College of Horticulture Science and Engineering, Shandong Agricultural University, Tai’an, 271018 Shandong China
| | - Jialin Li
- State Key Laboratory of Crop Biology; Key Laboratory of Biology and Genetic Improvement of Horticultural Crops (Huanghuai Region), Ministry of Agriculture; College of Horticulture Science and Engineering, Shandong Agricultural University, Tai’an, 271018 Shandong China
| | - Yunfei Mao
- State Key Laboratory of Crop Biology; Key Laboratory of Biology and Genetic Improvement of Horticultural Crops (Huanghuai Region), Ministry of Agriculture; College of Horticulture Science and Engineering, Shandong Agricultural University, Tai’an, 271018 Shandong China
| | - Manman Zhang
- State Key Laboratory of Crop Biology; Key Laboratory of Biology and Genetic Improvement of Horticultural Crops (Huanghuai Region), Ministry of Agriculture; College of Horticulture Science and Engineering, Shandong Agricultural University, Tai’an, 271018 Shandong China
| | - Rong Wang
- State Key Laboratory of Crop Biology; Key Laboratory of Biology and Genetic Improvement of Horticultural Crops (Huanghuai Region), Ministry of Agriculture; College of Horticulture Science and Engineering, Shandong Agricultural University, Tai’an, 271018 Shandong China
| | - Yanli Hu
- State Key Laboratory of Crop Biology; Key Laboratory of Biology and Genetic Improvement of Horticultural Crops (Huanghuai Region), Ministry of Agriculture; College of Horticulture Science and Engineering, Shandong Agricultural University, Tai’an, 271018 Shandong China
| | - Zhiquan Mao
- State Key Laboratory of Crop Biology; Key Laboratory of Biology and Genetic Improvement of Horticultural Crops (Huanghuai Region), Ministry of Agriculture; College of Horticulture Science and Engineering, Shandong Agricultural University, Tai’an, 271018 Shandong China
| | - Xiang Shen
- State Key Laboratory of Crop Biology; Key Laboratory of Biology and Genetic Improvement of Horticultural Crops (Huanghuai Region), Ministry of Agriculture; College of Horticulture Science and Engineering, Shandong Agricultural University, Tai’an, 271018 Shandong China
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Tripathi L, Tripathi JN, Shah T, Muiruri KS, Katari M. Molecular Basis of Disease Resistance in Banana Progenitor Musa balbisiana against Xanthomonas campestris pv. musacearum. Sci Rep 2019; 9:7007. [PMID: 31065041 PMCID: PMC6504851 DOI: 10.1038/s41598-019-43421-1] [Citation(s) in RCA: 16] [Impact Index Per Article: 3.2] [Reference Citation Analysis] [Abstract] [Track Full Text] [Download PDF] [Figures] [Journal Information] [Subscribe] [Scholar Register] [Received: 09/25/2018] [Accepted: 04/23/2019] [Indexed: 12/17/2022] Open
Abstract
Banana Xanthomonas wilt disease, caused by Xanthomonas campestris pv. musacearum (Xcm), is a major threat to banana production in east Africa. All cultivated varieties of banana are susceptible to Xcm and only the progenitor species Musa balbisiana was found to be resistant. The molecular basis of susceptibility and resistance of banana genotypes to Xcm is currently unknown. Transcriptome analysis of disease resistant genotype Musa balbisiana and highly susceptible banana cultivar Pisang Awak challenged with Xcm was performed to understand the disease response. The number of differentially expressed genes (DEGs) was higher in Musa balbisiana in comparison to Pisang Awak. Genes associated with response to biotic stress were up-regulated in Musa balbisiana. The DEGs were further mapped to the biotic stress pathways. Our results suggested activation of both PAMP-triggered basal defense and disease resistance (R) protein-mediated defense in Musa balbisiana as early response to Xcm infection. This study reports the first comparative transcriptome profile of the susceptible and resistant genotype of banana during early infection with Xcm and provide insights on the defense mechanism in Musa balbisiana, which can be used for genetic improvement of commonly cultivated banana varieties.
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Affiliation(s)
- Leena Tripathi
- International Institute of Tropical Agriculture (IITA), P.O. Box 30709-00100, Nairobi, Kenya.
| | - Jaindra Nath Tripathi
- International Institute of Tropical Agriculture (IITA), P.O. Box 30709-00100, Nairobi, Kenya
| | - Trushar Shah
- International Institute of Tropical Agriculture (IITA), P.O. Box 30709-00100, Nairobi, Kenya
| | - Kariuki Samwel Muiruri
- International Institute of Tropical Agriculture (IITA), P.O. Box 30709-00100, Nairobi, Kenya
| | - Manpreet Katari
- Department of Biology, New York University, New York, NY, United States
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Sircar S, Parekh N. Meta-analysis of drought-tolerant genotypes in Oryza sativa: A network-based approach. PLoS One 2019; 14:e0216068. [PMID: 31059518 PMCID: PMC6502313 DOI: 10.1371/journal.pone.0216068] [Citation(s) in RCA: 16] [Impact Index Per Article: 3.2] [Reference Citation Analysis] [Abstract] [MESH Headings] [Track Full Text] [Download PDF] [Figures] [Journal Information] [Subscribe] [Scholar Register] [Received: 12/15/2018] [Accepted: 04/12/2019] [Indexed: 12/30/2022] Open
Abstract
BACKGROUND Drought is a severe environmental stress. It is estimated that about 50% of the world rice production is affected mainly by drought. Apart from conventional breeding strategies to develop drought-tolerant crops, innovative computational approaches may provide insights into the underlying molecular mechanisms of stress response and identify drought-responsive markers. Here we propose a network-based computational approach involving a meta-analytic study of seven drought-tolerant rice genotypes under drought stress. RESULTS Co-expression networks enable large-scale analysis of gene-pair associations and tightly coupled clusters that may represent coordinated biological processes. Considering differentially expressed genes in the co-expressed modules and supplementing external information such as resistance/tolerance QTLs, transcription factors, network-based topological measures, we identify and prioritize drought-adaptive co-expressed gene modules and potential candidate genes. Using the candidate genes that are well-represented across the datasets as 'seed' genes, two drought-specific protein-protein interaction networks (PPINs) are constructed with up- and down-regulated genes. Cluster analysis of the up-regulated PPIN revealed ABA signalling pathway as a central process in drought response with a probable crosstalk with energy metabolic processes. Tightly coupled gene clusters representing up-regulation of core cellular respiratory processes and enhanced degradation of branched chain amino acids and cell wall metabolism are identified. Cluster analysis of down-regulated PPIN provides a snapshot of major processes associated with photosynthesis, growth, development and protein synthesis, most of which are shut down during drought. Differential regulation of phytohormones, e.g., jasmonic acid, cell wall metabolism, signalling and posttranslational modifications associated with biotic stress are elucidated. Functional characterization of topologically important, drought-responsive uncharacterized genes that may play a role in important processes such as ABA signalling, calcium signalling, photosynthesis and cell wall metabolism is discussed. Further transgenic studies on these genes may help in elucidating their biological role under stress conditions. CONCLUSION Currently, a large number of resources for rice functional genomics exist which are mostly underutilized by the scientific community. In this study, a computational approach integrating information from various resources such as gene co-expression networks, protein-protein interactions and pathway-level information is proposed to provide a systems-level view of complex drought-responsive processes across the drought-tolerant genotypes.
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Affiliation(s)
- Sanchari Sircar
- Centre for Computational Natural Sciences and Bioinformatics, International Institute of Information Technology, Hyderabad, India
| | - Nita Parekh
- Centre for Computational Natural Sciences and Bioinformatics, International Institute of Information Technology, Hyderabad, India
- * E-mail:
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Xu Z, Dong M, Peng X, Ku W, Zhao Y, Yang G. New insight into the molecular basis of cadmium stress responses of wild paper mulberry plant by transcriptome analysis. ECOTOXICOLOGY AND ENVIRONMENTAL SAFETY 2019; 171:301-312. [PMID: 30612018 DOI: 10.1016/j.ecoenv.2018.12.084] [Citation(s) in RCA: 44] [Impact Index Per Article: 8.8] [Reference Citation Analysis] [Abstract] [Key Words] [MESH Headings] [Track Full Text] [Subscribe] [Scholar Register] [Received: 10/22/2018] [Revised: 12/15/2018] [Accepted: 12/25/2018] [Indexed: 05/25/2023]
Abstract
BACKGROUND Heavy metal contamination is becoming a limitation to the utilization of soil and the distribution of vegetation. In particular, cadmium (Cd) pollution has had a serious impact on the food chain. Broussonetia papyrifera is a widely distributed pioneer tree species of heavy metal contaminated areas with important economic value. However, little is known about the genomic background of the Cd-tolerance mechanism in B. papyrifera. RESULTS The CdCl2 responsive physiology was evaluated and proved to be involved in antioxidase activity and active oxygen species (ROS) accumulation. The leaf and root transcriptomes derived from B. papyrifera grown under normal and CdCl2 stress conditions were systematically investigated using the Illumina HiSeq method. A total of 180,678,660 bp (27.1 GB) clean reads were assembled into 589,487 high-quality unigenes, of which 256,025 (43.43% of the total) and 250,251 (42.45% of the total) were aligned in Gene Ontology (GO) and Protein family (Pfam), respectively. A total of 24,414 differentially expressed genes (DEGs) were GO-annotated into 53, 23, 55, and 60 terms from the transcriptomes of root and leaf tissues under Cd stress and control conditions. A total of 117,547 Kyoto Encyclopedia of Genes and Genomes (KEGG) Orthology (KO)-annotated DEGs were enriched in at least 47 KEGG pathway terms among the four comparisons. Many genes encoding important transcription factors (e.g., auxin/indole-3-acetic acid (AUX/IAA), basic helix-loop-helix (bHLH), DNA-binding one zinc finger (Dof), and MYB) and proteins involved in plant-pathogen interactions, phenylpropanoid biosynthesis, plant hormone signal transduction, oxidative phosphorylation, carbon fixation, peroxisomes, flavonoid biosynthesis, and glutathione metabolism, among others, were substantially upregulated under CdCl2 stress. CONCLUSIONS These genes represent important candidates for studying Cd-response mechanisms and molecular biology of B. papyrifera and related species. Our findings provide a genomic sequence resource for functional genetic assignments in B. papyrifera, which will help elucidate the molecular mechanisms of its Cd-stress responses and facilitate the bioremediation of heavy metal contaminated areas via breeding of new stress-tolerant cultivars.
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Affiliation(s)
- Zhenggang Xu
- Hunan Research Center of Engineering Technology for Utilization of Environmental and Resources Plant, Central South University of Forestry and Technology, 498 Shaoshan South Road, 410004 Changsha, Hunan Province, China; School of Material and Chemical Engineering, Hunan City University, 518 Yingbin Road, 413000 Yiyang, Hunan Province, China
| | - Meng Dong
- School of Material and Chemical Engineering, Hunan City University, 518 Yingbin Road, 413000 Yiyang, Hunan Province, China
| | - Xiaoyun Peng
- School of Material and Chemical Engineering, Hunan City University, 518 Yingbin Road, 413000 Yiyang, Hunan Province, China
| | - Wenzhen Ku
- School of Material and Chemical Engineering, Hunan City University, 518 Yingbin Road, 413000 Yiyang, Hunan Province, China
| | - Yunlin Zhao
- Hunan Research Center of Engineering Technology for Utilization of Environmental and Resources Plant, Central South University of Forestry and Technology, 498 Shaoshan South Road, 410004 Changsha, Hunan Province, China.
| | - Guiyan Yang
- Laboratory of Walnut Research Center, College of Forestry, Northwest A & F University, Yangling 712100 Shaanxi, China.
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Zhuang W, Liu T, Qu S, Cai B, Qin Y, Zhang F, Wang Z. Identification of candidate genes for leaf scorch in Populus deltoids by the whole genome resequencing analysis. Sci Rep 2018; 8:16416. [PMID: 30401919 PMCID: PMC6219557 DOI: 10.1038/s41598-018-33739-7] [Citation(s) in RCA: 2] [Impact Index Per Article: 0.3] [Reference Citation Analysis] [Abstract] [Track Full Text] [Download PDF] [Figures] [Journal Information] [Subscribe] [Scholar Register] [Received: 01/23/2018] [Accepted: 10/03/2018] [Indexed: 01/08/2023] Open
Abstract
Leaf scorch exists as a common phenomenon in the development of plant, especially when plants encounter various adversities, which leads to great losses in agricultural production. Both Jinhong poplar (JHP) and Caihong poplar (CHP) (Populus deltoids) are obtained from a bud sport on Zhonghong poplar. Compared with CHP, JHP always exhibits leaf scorch, poor growth, premature leaf discoloration, and even death. In this study, the candidate genes associated with leaf scorch between JHP and CHP were identified by the whole genome resequencing using Illumina HiSeqTM. There were 218,880 polymorphic SNPs and 46,933 indels between JHP and CHP, respectively. Among these, the candidate genes carrying non-synonymous SNPs in coding regions were classified into 6 groups. The expression pattern of these candidate genes was also explored in JHP and CHP among different sampling stages. Combined with the qRT-PCR analysis, the results showed that genes associated with transport of various nutritional elements, senescence and MYB transcription factor might play important roles during the process of leaf scorch in Populus deltoids. Four genes belonging to these three groups carried more than three SNPs in their coding sequence, which might play important roles in leaf scorch. The above results provided candidate genes involved in leaf scorch in Populus deltoids, and made us better understand the molecular regulation mechanism of leaf scorch in Populus deltoids.
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Affiliation(s)
- Weibing Zhuang
- Jiangsu Key Laboratory for the Research and Utilization of Plant Resources, Institute of Botany, Jiangsu Province and Chinese Academy of Sciences, Nanjing, 210014, China.
| | - Tianyu Liu
- College of Horticulture, Nanjing Agricultural University, Nanjing, 210095, China
| | - Shenchun Qu
- College of Horticulture, Nanjing Agricultural University, Nanjing, 210095, China
| | - Binhua Cai
- College of Horticulture, Nanjing Agricultural University, Nanjing, 210095, China
| | - Yalong Qin
- Jiangsu Key Laboratory for the Research and Utilization of Plant Resources, Institute of Botany, Jiangsu Province and Chinese Academy of Sciences, Nanjing, 210014, China
| | - Fengjiao Zhang
- Jiangsu Key Laboratory for the Research and Utilization of Plant Resources, Institute of Botany, Jiangsu Province and Chinese Academy of Sciences, Nanjing, 210014, China
| | - Zhong Wang
- Jiangsu Key Laboratory for the Research and Utilization of Plant Resources, Institute of Botany, Jiangsu Province and Chinese Academy of Sciences, Nanjing, 210014, China.
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Xie Y, Chen P, Yan Y, Bao C, Li X, Wang L, Shen X, Li H, Liu X, Niu C, Zhu C, Fang N, Shao Y, Zhao T, Yu J, Zhu J, Xu L, van Nocker S, Ma F, Guan Q. An atypical R2R3 MYB transcription factor increases cold hardiness by CBF-dependent and CBF-independent pathways in apple. THE NEW PHYTOLOGIST 2018; 218:201-218. [PMID: 29266327 DOI: 10.1111/nph.14952] [Citation(s) in RCA: 152] [Impact Index Per Article: 25.3] [Reference Citation Analysis] [Abstract] [Key Words] [MESH Headings] [Track Full Text] [Subscribe] [Scholar Register] [Received: 07/06/2017] [Accepted: 11/13/2017] [Indexed: 05/19/2023]
Abstract
Apple (Malus × domestica) trees are vulnerable to freezing temperatures. However, there has been only limited success in developing cold-hardy cultivars. This lack of progress is due at least partly to lack of understanding of the molecular mechanisms of freezing tolerance in apple. In this study, we evaluated the potential roles for two R2R3 MYB transcription factors (TFs), MYB88 and the paralogous FLP (MYB124), in cold stress in apple and Arabidopsis. We found that MYB88 and MYB124 positively regulate freezing tolerance and cold-responsive gene expression in both apple and Arabidopsis. Chromatin-Immunoprecipitation-qPCR and electrophoretic mobility shift assays showed that MdMYB88/MdMYB124 act as direct regulators of the COLD SHOCK DOMAIN PROTEIN 3 (MdCSP3) and CIRCADIAN CLOCK ASSOCIATED 1 (MdCCA1) genes. Dual luciferase reporter assay indicated that MdCCA1 but not MdCSP3 activated the expression of MdCBF3 under cold stress. Moreover, MdMYB88 and MdMYB124 promoted anthocyanin accumulation and H2 O2 detoxification in response to cold. Taken together, our results suggest that MdMYB88 and MdMYB124 positively regulate cold hardiness and cold-responsive gene expression under cold stress by C-REPEAT BINDING FACTOR (CBF)-dependent and CBF-independent pathways.
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Affiliation(s)
- Yinpeng Xie
- State Key Laboratory of Crop Stress Biology for Arid Areas, College of Horticulture, Northwest A&F University, Yangling, 712100, China
| | - Pengxiang Chen
- State Key Laboratory of Crop Stress Biology for Arid Areas, College of Horticulture, Northwest A&F University, Yangling, 712100, China
| | - Yan Yan
- State Key Laboratory of Crop Stress Biology for Arid Areas, College of Horticulture, Northwest A&F University, Yangling, 712100, China
| | - Chana Bao
- State Key Laboratory of Crop Stress Biology for Arid Areas, College of Horticulture, Northwest A&F University, Yangling, 712100, China
| | - Xuewei Li
- State Key Laboratory of Crop Stress Biology for Arid Areas, College of Horticulture, Northwest A&F University, Yangling, 712100, China
| | - Liping Wang
- State Key Laboratory of Crop Stress Biology for Arid Areas, College of Horticulture, Northwest A&F University, Yangling, 712100, China
| | - Xiaoxia Shen
- State Key Laboratory of Crop Stress Biology for Arid Areas, College of Horticulture, Northwest A&F University, Yangling, 712100, China
| | - Haiyan Li
- State Key Laboratory of Crop Stress Biology for Arid Areas, College of Horticulture, Northwest A&F University, Yangling, 712100, China
| | - Xiaofang Liu
- State Key Laboratory of Crop Stress Biology for Arid Areas, College of Horticulture, Northwest A&F University, Yangling, 712100, China
| | - Chundong Niu
- State Key Laboratory of Crop Stress Biology for Arid Areas, College of Horticulture, Northwest A&F University, Yangling, 712100, China
| | - Chen Zhu
- State Key Laboratory of Crop Stress Biology for Arid Areas, College of Horticulture, Northwest A&F University, Yangling, 712100, China
| | - Nan Fang
- State Key Laboratory of Crop Stress Biology for Arid Areas, College of Horticulture, Northwest A&F University, Yangling, 712100, China
| | - Yun Shao
- State Key Laboratory of Crop Stress Biology for Arid Areas, College of Horticulture, Northwest A&F University, Yangling, 712100, China
| | - Tao Zhao
- Biosystematics Group, Wageningen University, 6708, PB Wageningen, the Netherlands
| | - Jiantao Yu
- College of Information Engineering, Northwest A&F University, Yangling, 712100, China
| | - Jianhua Zhu
- Department of Plant Science and Landscape Architecture, University of Maryland, College Park, MD, 20742, USA
| | - Lingfei Xu
- State Key Laboratory of Crop Stress Biology for Arid Areas, College of Horticulture, Northwest A&F University, Yangling, 712100, China
| | - Steven van Nocker
- Department of Horticulture, Michigan State University, 1066 Bogue St, East Lansing, MI, 48824, USA
| | - Fengwang Ma
- State Key Laboratory of Crop Stress Biology for Arid Areas, College of Horticulture, Northwest A&F University, Yangling, 712100, China
| | - Qingmei Guan
- State Key Laboratory of Crop Stress Biology for Arid Areas, College of Horticulture, Northwest A&F University, Yangling, 712100, China
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Huang J, Wei H, Li L, Yu S. Transcriptome analysis of nitric oxide-responsive genes in upland cotton (Gossypium hirsutum). PLoS One 2018; 13:e0192367. [PMID: 29513679 PMCID: PMC5841646 DOI: 10.1371/journal.pone.0192367] [Citation(s) in RCA: 18] [Impact Index Per Article: 3.0] [Reference Citation Analysis] [Abstract] [MESH Headings] [Grants] [Track Full Text] [Download PDF] [Figures] [Journal Information] [Subscribe] [Scholar Register] [Received: 07/10/2017] [Accepted: 01/21/2018] [Indexed: 12/27/2022] Open
Abstract
Nitric oxide (NO) is an important signaling molecule with diverse physiological functions in plants. It is therefore important to characterize the downstream genes and signal transduction networks modulated by NO. Here, we identified 1,932 differentially expressed genes (DEGs) responding to NO in upland cotton using high throughput tag sequencing. The results of quantitative real-time polymerase chain reaction (qRT-PCR) analysis of 25 DEGs showed good consistency. Gene Ontology (GO) and KEGG pathway were analyzed to gain a better understanding of these DEGs. We identified 157 DEGs belonging to 36 transcription factor (TF) families and 72 DEGs related to eight plant hormones, among which several TF families and hormones were involved in stress responses. Hydrogen peroxide and malondialdehyde (MDA) contents were increased, as well related genes after treatment with sodium nitroprusside (SNP) (an NO donor), suggesting a role for NO in the plant stress response. Finally, we compared of the current and previous data indicating a massive number of NO-responsive genes at the large-scale transcriptome level. This study evaluated the landscape of NO-responsive genes in cotton and identified the involvement of NO in the stress response. Some of the identified DEGs represent good candidates for further functional analysis in cotton.
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Affiliation(s)
- Juan Huang
- Research Center of Buckwheat Industry Technology, Guizhou Normal University, Guiyang, Guizhou, P. R. China
- State Key Laboratory of Cotton Biology, Institute of Cotton Research, Chinese Academy of Agricultural Sciences, Anyang, Henan, P. R. China
| | - Hengling Wei
- State Key Laboratory of Cotton Biology, Institute of Cotton Research, Chinese Academy of Agricultural Sciences, Anyang, Henan, P. R. China
| | - Libei Li
- State Key Laboratory of Cotton Biology, Institute of Cotton Research, Chinese Academy of Agricultural Sciences, Anyang, Henan, P. R. China
| | - Shuxun Yu
- State Key Laboratory of Cotton Biology, Institute of Cotton Research, Chinese Academy of Agricultural Sciences, Anyang, Henan, P. R. China
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Kumar J, Singh S, Singh M, Srivastava PK, Mishra RK, Singh VP, Prasad SM. Transcriptional regulation of salinity stress in plants: A short review. ACTA ACUST UNITED AC 2017. [DOI: 10.1016/j.plgene.2017.04.001] [Citation(s) in RCA: 33] [Impact Index Per Article: 4.7] [Reference Citation Analysis] [Track Full Text] [Journal Information] [Subscribe] [Scholar Register] [Indexed: 11/27/2022]
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