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Shen W, Cao S, Liu J, Zhang W, Chen J, Li JF. Overexpression of an Osa-miR162a Derivative in Rice Confers Cross-Kingdom RNA Interference-Mediated Brown Planthopper Resistance without Perturbing Host Development. Int J Mol Sci 2021; 22:ijms222312652. [PMID: 34884461 PMCID: PMC8657652 DOI: 10.3390/ijms222312652] [Citation(s) in RCA: 6] [Impact Index Per Article: 2.0] [Reference Citation Analysis] [Abstract] [Key Words] [MESH Headings] [Track Full Text] [Download PDF] [Figures] [Journal Information] [Subscribe] [Scholar Register] [Received: 10/20/2021] [Revised: 11/19/2021] [Accepted: 11/22/2021] [Indexed: 11/16/2022] Open
Abstract
Rice is a main food crop for more than half of the global population. The brown planthopper (BPH, Nilaparvata lugens) is one of the most destructive insect pests of rice. Currently, repeated overuse of chemical insecticides represents a common practice in agriculture for BPH control, which can induce insect tolerance and provoke environmental concerns. This situation calls for innovative and widely applicable strategies for rice protection against BPH. Here we report that the rice osa-miR162a can mediate cross-kingdom RNA interference (RNAi) by targeting the NlTOR (Target of rapamycin) gene of BPH that regulates the reproduction process. Through artificial diet or injection, osa-miR162a mimics repressed the NlTOR expression and impaired the oviposition of BPH adults. Consistently, overproduced osa-miR162a in transgenic rice plants compromised the fecundity of BPH adults fed with these plants, but meanwhile perturbed root and grain development. To circumvent this issue, we generated osa-miR162a-m1, a sequence-optimized osa-miR162a, by decreasing base complementarity to rice endogenous target genes while increasing base complementarity to NlTOR. Transgenic overexpression of osa-miR162a-m1 conferred rice resistance to BPH without detectable developmental penalty. This work reveals the first cross-kingdom RNAi mechanism in rice-BPH interactions and inspires a potentially useful approach for improving rice resistance to BPH. We also introduce an effective strategy to uncouple unwanted host developmental perturbation from desirable cross-kingdom RNAi benefits for overexpressed plant miRNAs.
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Affiliation(s)
- Wenzhong Shen
- State Key Laboratory of Biocontrol, Guangdong Provincial Key Laboratory of Plant Resources, School of Life Sciences, Sun Yat-sen University, Guangzhou 510275, China; (W.S.); (S.C.); (J.L.); (W.Z.)
| | - Shanni Cao
- State Key Laboratory of Biocontrol, Guangdong Provincial Key Laboratory of Plant Resources, School of Life Sciences, Sun Yat-sen University, Guangzhou 510275, China; (W.S.); (S.C.); (J.L.); (W.Z.)
| | - Jinhui Liu
- State Key Laboratory of Biocontrol, Guangdong Provincial Key Laboratory of Plant Resources, School of Life Sciences, Sun Yat-sen University, Guangzhou 510275, China; (W.S.); (S.C.); (J.L.); (W.Z.)
| | - Wenqing Zhang
- State Key Laboratory of Biocontrol, Guangdong Provincial Key Laboratory of Plant Resources, School of Life Sciences, Sun Yat-sen University, Guangzhou 510275, China; (W.S.); (S.C.); (J.L.); (W.Z.)
| | - Jie Chen
- Guangdong Provincial Key Laboratory of High Technology for Plant Protection, Plant Protection Research Institute, Guangdong Academy of Agricultural Sciences, Guangzhou 510640, China
- Correspondence: (J.C.); (J.-F.L.); Tel./Fax: +86-20-39943513 (J.-F.L.)
| | - Jian-Feng Li
- State Key Laboratory of Biocontrol, Guangdong Provincial Key Laboratory of Plant Resources, School of Life Sciences, Sun Yat-sen University, Guangzhou 510275, China; (W.S.); (S.C.); (J.L.); (W.Z.)
- Correspondence: (J.C.); (J.-F.L.); Tel./Fax: +86-20-39943513 (J.-F.L.)
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Xu J, Xian Q, Zhang N, Wang K, Zhou X, Li Y, Dong J, Chen X. Identification of miRNA-Target Gene Pairs Responsive to Fusarium Wilt of Cucumber via an Integrated Analysis of miRNA and Transcriptome Profiles. Biomolecules 2021; 11:biom11111620. [PMID: 34827618 PMCID: PMC8615934 DOI: 10.3390/biom11111620] [Citation(s) in RCA: 2] [Impact Index Per Article: 0.7] [Reference Citation Analysis] [Abstract] [Key Words] [MESH Headings] [Track Full Text] [Download PDF] [Figures] [Journal Information] [Subscribe] [Scholar Register] [Received: 09/11/2021] [Revised: 10/25/2021] [Accepted: 10/28/2021] [Indexed: 11/16/2022] Open
Abstract
Fusarium wilt (FW) of cucumber (Cucumis sativus L.) caused by Fusarium oxysporum f. sp. cucumerinum (Foc) is a destructive soil-borne disease that severely decreases cucumber yield and quality worldwide. MicroRNAs (miRNAs) are small non-coding RNAs (sRNAs) that are important for regulating host immunity because they affect target gene expression. However, the specific miRNAs and the miRNA/target gene crosstalk involved in cucumber resistance to FW remain unknown. In this study, we compared sRNA-seq and RNA-seq data for cucumber cultivar 'Rijiecheng', which is resistant to FW. The integrated analysis identified FW-responsive miRNAs and their target genes. On the basis of verified expression levels, we detected two highly expressed miRNAs with down-regulated expression in response to Foc. Moreover, an analysis of 21 target genes in cucumber inoculated with Foc indicated that JRL3 (Csa2G362470), which is targeted by miR319a, and BEE1 (Csa1G024150), DAHP1 (Csa2G369040), and PERK2 (Csa4G642480), which are targeted by miR6300, are expressed at high levels, but their expression is further up-regulated after Foc inoculation. These results imply that miR319a-JRL3, miR6300-BEE1, miR6300-DAHP1 and miR6300-PERK2 regulate cucumber defenses against FW, and provide the gene resources that may be useful for breeding programs focused on developing new cucumber varieties with enhanced resistance to FW.
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Affiliation(s)
- Jun Xu
- School of Horticulture and Plant Protection, Yangzhou University, Yangzhou 225009, China; (J.X.); (Q.X.); (N.Z.); (K.W.); (X.Z.); (Y.L.); (J.D.)
| | - Qianqian Xian
- School of Horticulture and Plant Protection, Yangzhou University, Yangzhou 225009, China; (J.X.); (Q.X.); (N.Z.); (K.W.); (X.Z.); (Y.L.); (J.D.)
| | - Ningyuan Zhang
- School of Horticulture and Plant Protection, Yangzhou University, Yangzhou 225009, China; (J.X.); (Q.X.); (N.Z.); (K.W.); (X.Z.); (Y.L.); (J.D.)
| | - Ke Wang
- School of Horticulture and Plant Protection, Yangzhou University, Yangzhou 225009, China; (J.X.); (Q.X.); (N.Z.); (K.W.); (X.Z.); (Y.L.); (J.D.)
| | - Xin Zhou
- School of Horticulture and Plant Protection, Yangzhou University, Yangzhou 225009, China; (J.X.); (Q.X.); (N.Z.); (K.W.); (X.Z.); (Y.L.); (J.D.)
| | - Yansong Li
- School of Horticulture and Plant Protection, Yangzhou University, Yangzhou 225009, China; (J.X.); (Q.X.); (N.Z.); (K.W.); (X.Z.); (Y.L.); (J.D.)
| | - Jingping Dong
- School of Horticulture and Plant Protection, Yangzhou University, Yangzhou 225009, China; (J.X.); (Q.X.); (N.Z.); (K.W.); (X.Z.); (Y.L.); (J.D.)
| | - Xuehao Chen
- School of Horticulture and Plant Protection, Yangzhou University, Yangzhou 225009, China; (J.X.); (Q.X.); (N.Z.); (K.W.); (X.Z.); (Y.L.); (J.D.)
- State Key Laboratory of Vegetable Germplasm Innovation, Tianjin 300192, China
- Correspondence:
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Li Y, Zheng YP, Zhou XH, Yang XM, He XR, Feng Q, Zhu Y, Li GB, Wang H, Zhao JH, Hu XH, Pu M, Zhou SX, Ji YP, Zhao ZX, Zhang JW, Huang YY, Fan J, Zhang LL, Wang WM. Rice miR1432 Fine-Tunes the Balance of Yield and Blast Disease Resistance via Different Modules. RICE (NEW YORK, N.Y.) 2021; 14:87. [PMID: 34674053 PMCID: PMC8531185 DOI: 10.1186/s12284-021-00529-1] [Citation(s) in RCA: 19] [Impact Index Per Article: 6.3] [Reference Citation Analysis] [Abstract] [Key Words] [Grants] [Track Full Text] [Subscribe] [Scholar Register] [Received: 06/03/2021] [Accepted: 10/12/2021] [Indexed: 05/02/2023]
Abstract
microRNAs act as fine-tuners in the regulation of plant growth and resistance against biotic and abiotic stress. Here we demonstrate that rice miR1432 fine-tunes yield and blast disease resistance via different modules. Overexpression of miR1432 leads to compromised resistance and decreased yield, whereas blocking miR1432 using a target mimic of miR1432 results in enhanced resistance and yield. miR1432 suppresses the expression of LOC_Os03g59790, which encodes an EF-hand family protein 1 (OsEFH1). Overexpression of OsEFH1 leads to enhanced rice resistance but decreased grain yield. Further study revealed that miR1432 and OsEFH1 are differentially responsive to chitin, a fungus-derived pathogen/microbe-associated molecular pattern (PAMP/MAMP). Consistently, blocking miR1432 or overexpression of OsEFH1 improves chitin-triggered immunity responses. In contrast, overexpression of ACOT, another target gene regulating rice yield traits, has no significant effects on rice blast disease resistance. Altogether, these results indicate that miR1432 balances yield and resistance via different target genes, and blocking miR1432 can simultaneously improve yield and resistance.
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Affiliation(s)
- Yan Li
- State Key Laboratory of Crop Gene Exploration and Utilization in Southwest China, Sichuan Agricultural University, Chengdu, China
| | - Ya-Ping Zheng
- State Key Laboratory of Crop Gene Exploration and Utilization in Southwest China, Sichuan Agricultural University, Chengdu, China
| | - Xin-Hui Zhou
- State Key Laboratory of Crop Gene Exploration and Utilization in Southwest China, Sichuan Agricultural University, Chengdu, China
| | - Xue-Mei Yang
- State Key Laboratory of Crop Gene Exploration and Utilization in Southwest China, Sichuan Agricultural University, Chengdu, China
| | - Xiao-Rong He
- State Key Laboratory of Crop Gene Exploration and Utilization in Southwest China, Sichuan Agricultural University, Chengdu, China
| | - Qin Feng
- State Key Laboratory of Crop Gene Exploration and Utilization in Southwest China, Sichuan Agricultural University, Chengdu, China
| | - Yong Zhu
- State Key Laboratory of Crop Gene Exploration and Utilization in Southwest China, Sichuan Agricultural University, Chengdu, China
| | - Guo-Bang Li
- State Key Laboratory of Crop Gene Exploration and Utilization in Southwest China, Sichuan Agricultural University, Chengdu, China
| | - He Wang
- State Key Laboratory of Crop Gene Exploration and Utilization in Southwest China, Sichuan Agricultural University, Chengdu, China
| | - Jing-Hao Zhao
- State Key Laboratory of Crop Gene Exploration and Utilization in Southwest China, Sichuan Agricultural University, Chengdu, China
| | - Xiao-Hong Hu
- State Key Laboratory of Crop Gene Exploration and Utilization in Southwest China, Sichuan Agricultural University, Chengdu, China
| | - Mei Pu
- State Key Laboratory of Crop Gene Exploration and Utilization in Southwest China, Sichuan Agricultural University, Chengdu, China
| | - Shi-Xin Zhou
- State Key Laboratory of Crop Gene Exploration and Utilization in Southwest China, Sichuan Agricultural University, Chengdu, China
| | - Yun-Peng Ji
- State Key Laboratory of Crop Gene Exploration and Utilization in Southwest China, Sichuan Agricultural University, Chengdu, China
| | - Zhi-Xue Zhao
- State Key Laboratory of Crop Gene Exploration and Utilization in Southwest China, Sichuan Agricultural University, Chengdu, China
| | - Ji-Wei Zhang
- State Key Laboratory of Crop Gene Exploration and Utilization in Southwest China, Sichuan Agricultural University, Chengdu, China
| | - Yan-Yan Huang
- State Key Laboratory of Crop Gene Exploration and Utilization in Southwest China, Sichuan Agricultural University, Chengdu, China
| | - Jing Fan
- State Key Laboratory of Crop Gene Exploration and Utilization in Southwest China, Sichuan Agricultural University, Chengdu, China
| | - Ling-Li Zhang
- State Key Laboratory of Crop Gene Exploration and Utilization in Southwest China, Sichuan Agricultural University, Chengdu, China
- College of Environmental Science and Engineering, China West Normal University, Nanchong, China
| | - Wen-Ming Wang
- State Key Laboratory of Crop Gene Exploration and Utilization in Southwest China, Sichuan Agricultural University, Chengdu, China.
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Kou Y, Dai Z, Cui P, Hu Z, Tian L, Zhang F, Duan H, Xia Q, Liu Q, Zheng X. A flowerlike FePt/MnO 2/GOx-based cascade nanoreactor with sustainable O 2 supply for synergistic starvation-chemodynamic anticancer therapy. J Mater Chem B 2021; 9:8480-8490. [PMID: 34553729 DOI: 10.1039/d1tb01539g] [Citation(s) in RCA: 8] [Impact Index Per Article: 2.7] [Reference Citation Analysis] [Abstract] [MESH Headings] [Track Full Text] [Journal Information] [Subscribe] [Scholar Register] [Indexed: 01/06/2023]
Abstract
The development of versatile nanotheranostic agents has received increasing interest in cancer treatment. Herein, in this study, we rationally designed and prepared a novel flowerlike multifunctional cascade nanoreactor, BSA-GOx@MnO2@FePt (BGMFP), by integrating glucose oxidase (GOx), manganese dioxide (MnO2) and FePt for synergetic cancer treatment with satisfying therapeutic efficiency. In an acidic environment, intratumoral H2O2 could be decomposed to O2 to accelerate the consumption of glucose catalyzed by GOx to induce cancer starvation. Moreover, the accumulation of gluconic acid and H2O2 generated along with the consumption of glucose would in turn promote the catalytic efficiency of MnO2 and boost O2 evolution, which could enhance the efficiency of starvation therapy. Moreover, FePt as an excellent Fenton agent could simultaneously convert H2O2 to the toxic hydroxyl radical (˙OH), subsequently resulting in amplified intracellular oxidative stress and cell apoptosis. Therefore, BGMFP could catalyze a cascade of intracellular biochemical reactions and optimize the unique properties of MnO2, GOx and FePt via mutual promotion of each other to realize O2 supply, chemodynamic therapy (CDT) and starvation therapy. The anticancer results in vitro and in vivo demonstrated that BGMFP possessed remarkable tumor inhibition capacity through enhancing the starvation therapy and CDT. It is appreciated that BGMFP could be a promising platform for synergetic cancer treatment.
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Affiliation(s)
- Yunkai Kou
- Key Laboratory of Functional Nanomaterials & Technology in Universities of Shandong, School of Chemistry & Chemical Engineering, Linyi University, Linyi 276005, P. R. China.
| | - Zhichao Dai
- Key Laboratory of Functional Nanomaterials & Technology in Universities of Shandong, School of Chemistry & Chemical Engineering, Linyi University, Linyi 276005, P. R. China.
| | - Ping Cui
- Key Laboratory of Functional Nanomaterials & Technology in Universities of Shandong, School of Chemistry & Chemical Engineering, Linyi University, Linyi 276005, P. R. China.
| | - Zunfu Hu
- Key Laboratory of Functional Nanomaterials & Technology in Universities of Shandong, School of Chemistry & Chemical Engineering, Linyi University, Linyi 276005, P. R. China.
| | - Lu Tian
- Key Laboratory of Functional Nanomaterials & Technology in Universities of Shandong, School of Chemistry & Chemical Engineering, Linyi University, Linyi 276005, P. R. China.
| | - Feifei Zhang
- Key Laboratory of Functional Nanomaterials & Technology in Universities of Shandong, School of Chemistry & Chemical Engineering, Linyi University, Linyi 276005, P. R. China.
| | - Haiqiang Duan
- Key Laboratory of Functional Nanomaterials & Technology in Universities of Shandong, School of Chemistry & Chemical Engineering, Linyi University, Linyi 276005, P. R. China.
| | - Qiying Xia
- Key Laboratory of Functional Nanomaterials & Technology in Universities of Shandong, School of Chemistry & Chemical Engineering, Linyi University, Linyi 276005, P. R. China.
| | - Qingyun Liu
- College of Chemical and Environmental Engineering, Shandong University of Science and Technology, Qingdao 266590, P. R. China
| | - Xiuwen Zheng
- Key Laboratory of Functional Nanomaterials & Technology in Universities of Shandong, School of Chemistry & Chemical Engineering, Linyi University, Linyi 276005, P. R. China.
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Li J, Zhang H, Yang R, Zeng Q, Han G, Du Y, Yang J, Yang G, Luo Q. Identification of miRNAs Contributing to the Broad-Spectrum and Durable Blast Resistance in the Yunnan Local Rice Germplasm. FRONTIERS IN PLANT SCIENCE 2021; 12:749919. [PMID: 34721478 PMCID: PMC8551726 DOI: 10.3389/fpls.2021.749919] [Citation(s) in RCA: 2] [Impact Index Per Article: 0.7] [Reference Citation Analysis] [Abstract] [Key Words] [Track Full Text] [Figures] [Subscribe] [Scholar Register] [Received: 07/30/2021] [Accepted: 09/13/2021] [Indexed: 06/13/2023]
Abstract
MicroRNAs are 20-24 nucleotide non-coding RNAs and play important roles in plant-environment interactions. In recent years, many microRNAs (miRNAs) have been found to regulate rice immunity against rice blast fungus. However, there are limited studies about miRNAs that directly target resistance (R) genes to regulate rice immunity. In this study, by deep sequencing, small RNA libraries were constructed from four-leaf stage seedlings of the resistant variety Ziyu44 and susceptible variety Jiangnanxiangnuo (JNXN) upon Magnaporthe oryzae infection, we found that much more miRNAs were significantly differentially expressed in Ziyu44 than in JNXN. Among these miRNAs, we focused on miR9664, a newly identified rice miRNA in our sequencing, which was upregulated lightly in Ziyu44 and drastically in JNXN at 24-48 h post-inoculation (hpi). The transgenic plants overexpressing miR9664 (miR9664-oe) displayed reduced defense responses to M. oryzae, while those knocking down miR9664 (miR9664-m) displayed enhanced defense responses to M. oryzae. Most of the detected miR9664 predicted target genes were reduced in the miR9664-oe lines while increased in the miR9664-m lines. The cleavage site of LOC_Os08g07774 was confirmed by RLM-RACE. Meanwhile, after being inoculated with M. oryzae, the genes were expressed differently between Ziyu44 and JNXN. The results suggest that miR9664-mediated R gene turnover contributes to Ziyu44 broad-spectrum resistance to rice blast fungus. Taken together, our research identified a new rice miRNA that directly targets R genes to regulate rice immunity against rice blast fungus, adding significant information to the study of rice-M. oryzae interaction.
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Affiliation(s)
- Jinlu Li
- State Key Laboratory for Conservation and Utilization of Bio-Resources in Yunnan/Ministry of Education Key Laboratory of Agricultural Biodiversity for Plant Disease Management, Yunnan Agricultural University, Kunming, China
| | - Hui Zhang
- College of Agronomy and Biotechnology, Yunnan Agricultural University, Kunming, China
| | - Rui Yang
- State Key Laboratory for Conservation and Utilization of Bio-Resources in Yunnan/Ministry of Education Key Laboratory of Agricultural Biodiversity for Plant Disease Management, Yunnan Agricultural University, Kunming, China
| | - Qianchun Zeng
- College of Agronomy and Biotechnology, Yunnan Agricultural University, Kunming, China
| | - Guangyu Han
- State Key Laboratory for Conservation and Utilization of Bio-Resources in Yunnan/Ministry of Education Key Laboratory of Agricultural Biodiversity for Plant Disease Management, Yunnan Agricultural University, Kunming, China
| | - Yunlong Du
- State Key Laboratory for Conservation and Utilization of Bio-Resources in Yunnan/Ministry of Education Key Laboratory of Agricultural Biodiversity for Plant Disease Management, Yunnan Agricultural University, Kunming, China
| | - Jing Yang
- State Key Laboratory for Conservation and Utilization of Bio-Resources in Yunnan/Ministry of Education Key Laboratory of Agricultural Biodiversity for Plant Disease Management, Yunnan Agricultural University, Kunming, China
| | - Genhua Yang
- State Key Laboratory for Conservation and Utilization of Bio-Resources in Yunnan/Ministry of Education Key Laboratory of Agricultural Biodiversity for Plant Disease Management, Yunnan Agricultural University, Kunming, China
| | - Qiong Luo
- State Key Laboratory for Conservation and Utilization of Bio-Resources in Yunnan/Ministry of Education Key Laboratory of Agricultural Biodiversity for Plant Disease Management, Yunnan Agricultural University, Kunming, China
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Xu P, Zhu Y, Zhang Y, Jiang J, Yang L, Mu J, Yu X, He Y. Global Analysis of the Genetic Variations in miRNA-Targeted Sites and Their Correlations With Agronomic Traits in Rapeseed. Front Genet 2021; 12:741858. [PMID: 34594365 PMCID: PMC8476912 DOI: 10.3389/fgene.2021.741858] [Citation(s) in RCA: 1] [Impact Index Per Article: 0.3] [Reference Citation Analysis] [Abstract] [Key Words] [Track Full Text] [Download PDF] [Figures] [Journal Information] [Subscribe] [Scholar Register] [Received: 07/15/2021] [Accepted: 08/25/2021] [Indexed: 12/12/2022] Open
Abstract
MicroRNAs (miRNAs) and their target genes play vital roles in crops. However, the genetic variations in miRNA-targeted sites that affect miRNA cleavage efficiency and their correlations with agronomic traits in crops remain unexplored. On the basis of a genome-wide DNA re-sequencing of 210 elite rapeseed (Brassica napus) accessions, we identified the single nucleotide polymorphisms (SNPs) and insertions/deletions (INDELs) in miRNA-targeted sites complementary to miRNAs. Variant calling revealed 7.14 million SNPs and 2.89 million INDELs throughout the genomes of 210 rapeseed accessions. Furthermore, we detected 330 SNPs and 79 INDELs in 357 miRNA target sites, of which 33.50% were rare variants. We also analyzed the correlation between the genetic variations in miRNA target sites and 12 rapeseed agronomic traits. Eleven SNPs in miRNA target sites were significantly correlated with phenotypes in three consecutive years. More specifically, three correlated SNPs within the miRNA-binding regions of BnSPL9-3, BnSPL13-2, and BnCUC1-2 were in the loci associated with the branch angle, seed weight, and silique number, respectively; expression profiling suggested that the variation at these 3 miRNA target sites significantly affected the expression level of the corresponding target genes. Taken together, the results of this study provide researchers and breeders with a global view of the genetic variations in miRNA-targeted sites in rapeseed and reveal the potential effects of these genetic variations on elite agronomic traits.
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Affiliation(s)
- Pengfei Xu
- National Key Laboratory of Plant Molecular Genetics, CAS Center for Excellence in Molecular Plant Sciences, Shanghai Institute of Plant Physiology and Ecology, Chinese Academy of Sciences (CAS), Shanghai, China.,University of the Chinese Academy of Sciences, Beijing, China
| | - Yantao Zhu
- Hybrid Rape Research Center of Shaanxi Province, Yangling, China
| | - Yanfeng Zhang
- Hybrid Rape Research Center of Shaanxi Province, Yangling, China
| | - Jianxia Jiang
- Crop Breeding and Cultivation Research Institute, Shanghai Academy of Agricultural Sciences, Shanghai, China
| | - Liyong Yang
- Crop Breeding and Cultivation Research Institute, Shanghai Academy of Agricultural Sciences, Shanghai, China
| | - Jianxin Mu
- Hybrid Rape Research Center of Shaanxi Province, Yangling, China
| | - Xiang Yu
- School of Life Sciences and Biotechnology, Shanghai Jiao Tong University, Shanghai, China
| | - Yuke He
- National Key Laboratory of Plant Molecular Genetics, CAS Center for Excellence in Molecular Plant Sciences, Shanghai Institute of Plant Physiology and Ecology, Chinese Academy of Sciences (CAS), Shanghai, China.,University of the Chinese Academy of Sciences, Beijing, China
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Mehta S, Kumar A, Achary VMM, Ganesan P, Rathi N, Singh A, Sahu KP, Lal SK, Das TK, Reddy MK. Antifungal activity of glyphosate against fungal blast disease on glyphosate-tolerant OsmEPSPS transgenic rice. PLANT SCIENCE : AN INTERNATIONAL JOURNAL OF EXPERIMENTAL PLANT BIOLOGY 2021; 311:111009. [PMID: 34482912 DOI: 10.1016/j.plantsci.2021.111009] [Citation(s) in RCA: 4] [Impact Index Per Article: 1.3] [Reference Citation Analysis] [Abstract] [Key Words] [MESH Headings] [Track Full Text] [Subscribe] [Scholar Register] [Received: 03/29/2021] [Revised: 07/20/2021] [Accepted: 07/24/2021] [Indexed: 06/13/2023]
Abstract
Weeds, pests, and pathogens are among the pre-harvest constraints in rice farming across rice-growing countries. For weed management, manual weeding and herbicides are widely practiced. Among the herbicides, glyphosate [N-(phosphonomethyl) glycine] is a broad-spectrum systemic chemical extensively used in agriculture. Being a competitive structural analog to phosphoenolpyruvate, it selectively inhibits the conserved 5-enolpyruvylshikimate-3-phosphate synthase (EPSPS) enzyme required for the biosynthesis of aromatic amino acids and essential metabolites in eukaryotes and prokaryotes. In the present study, we investigated the antifungal and defense elicitor activity of glyphosate against Magnaporthe oryzae on transgenic-rice overexpressing a glyphosate-resistance OsEPSPS gene (T173I + P177S; TIPS OsmEPSPS) for blast disease management. The glyphosate foliar spray on OsmEPSPS transgenic rice lines showed both prophylactic and curative suppression of blast disease comparable to a blasticide, tricyclazole. The glyphosate displayed direct antifungal activity on Magnaporthe oryzae as well as enhanced the levels of antioxidant enzymes and photosynthetic pigments in rice. However, the genes associated with phytohormones-mediated defense (OsPAD4, OsNPR1.3, and OsFMO) and innate immunity pathway (OsCEBiP and OsCERK1) were found repressed upon glyphosate spray. Altogether, the current study is the first report highlighting the overexpression of a crop-specific TIPS mutation in conjugation with glyphosate application showing potential for blast disease management in rice cultivation.
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Affiliation(s)
- Sahil Mehta
- Crop Improvement Group, International Centre for Genetic Engineering and Biotechnology, New Delhi, India
| | - Aundy Kumar
- ICAR-Indian Agricultural Research Institute, New Delhi, India.
| | - V Mohan Murali Achary
- Crop Improvement Group, International Centre for Genetic Engineering and Biotechnology, New Delhi, India
| | - Prakash Ganesan
- ICAR-Indian Agricultural Research Institute, New Delhi, India
| | - Neelmani Rathi
- ICAR-Indian Agricultural Research Institute, New Delhi, India
| | - Asmita Singh
- ICAR-Indian Agricultural Research Institute, New Delhi, India
| | | | - Shambhu Krishan Lal
- Crop Improvement Group, International Centre for Genetic Engineering and Biotechnology, New Delhi, India; ICAR-Indian Institute of Agricultural Biotechnology, Ranchi, Jharkhand, India
| | - T K Das
- ICAR-Indian Agricultural Research Institute, New Delhi, India
| | - Malireddy K Reddy
- Crop Improvement Group, International Centre for Genetic Engineering and Biotechnology, New Delhi, India.
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Tang J, Gu X, Liu J, He Z. Roles of small RNAs in crop disease resistance. STRESS BIOLOGY 2021; 1:6. [PMID: 37676520 PMCID: PMC10429495 DOI: 10.1007/s44154-021-00005-2] [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: 06/04/2021] [Accepted: 07/19/2021] [Indexed: 09/08/2023]
Abstract
Small RNAs (sRNAs) are a class of short, non-coding regulatory RNAs that have emerged as critical components of defense regulatory networks across plant kingdoms. Many sRNA-based technologies, such as host-induced gene silencing (HIGS), spray-induced gene silencing (SIGS), virus-induced gene silencing (VIGS), artificial microRNA (amiRNA) and synthetic trans-acting siRNA (syn-tasiRNA)-mediated RNA interference (RNAi), have been developed as disease control strategies in both monocot and dicot plants, particularly in crops. This review aims to highlight our current understanding of the roles of sRNAs including miRNAs, heterochromatic siRNAs (hc-siRNAs), phased, secondary siRNAs (phasiRNAs) and natural antisense siRNAs (nat-siRNAs) in disease resistance, and sRNAs-mediated trade-offs between defense and growth in crops. In particular, we focus on the diverse functions of sRNAs in defense responses to bacterial and fungal pathogens, oomycete and virus in crops. Further, we highlight the application of sRNA-based technologies in protecting crops from pathogens. Further research perspectives are proposed to develop new sRNAs-based efficient strategies to breed non-genetically modified (GMO), disease-tolerant crops for sustainable agriculture.
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Affiliation(s)
- Jun Tang
- National Key Laboratory of Plant Molecular Genetics, CAS Center for Excellence in Molecular Plant Sciences, Institute of Plant Physiology & Ecology, Chinese Academy of Sciences, Shanghai, 200032, China
- University of the Chinese Academy of Sciences, Beijing, 100049, China
| | - Xueting Gu
- National Key Laboratory of Plant Molecular Genetics, CAS Center for Excellence in Molecular Plant Sciences, Institute of Plant Physiology & Ecology, Chinese Academy of Sciences, Shanghai, 200032, China
- University of the Chinese Academy of Sciences, Beijing, 100049, China
| | - Junzhong Liu
- State Key Laboratory of Conservation and Utilization of Bio-Resources in Yunnan and Center for Life Sciences, School of Life Sciences, Yunnan University, Kunming, China.
| | - Zuhua He
- National Key Laboratory of Plant Molecular Genetics, CAS Center for Excellence in Molecular Plant Sciences, Institute of Plant Physiology & Ecology, Chinese Academy of Sciences, Shanghai, 200032, China.
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Song H, Lin B, Huang Q, Sun L, Chen J, Hu L, Zhuo K, Liao J. The Meloidogyne graminicola effector MgMO289 targets a novel copper metallochaperone to suppress immunity in rice. JOURNAL OF EXPERIMENTAL BOTANY 2021; 72:5638-5655. [PMID: 33974693 DOI: 10.1093/jxb/erab208] [Citation(s) in RCA: 6] [Impact Index Per Article: 2.0] [Reference Citation Analysis] [Abstract] [Key Words] [MESH Headings] [Track Full Text] [Subscribe] [Scholar Register] [Received: 02/02/2021] [Accepted: 05/07/2021] [Indexed: 05/14/2023]
Abstract
Recent studies have reported that plant-parasitic nematodes facilitate their infection by suppressing plant immunity via effectors, but the inhibitory mechanisms remain poorly understood. This study found that a novel effector MgMO289 is exclusively expressed in the dorsal esophageal gland of Meloidogyne graminicola and is up-regulated at parasitic third-/fourth-stage juveniles. In planta silencing of MgMO289 substantially increased plant resistance to M. graminicola. Moreover, we found that MgMO289 interacts with a new rice copper metallochaperone heavy metal-associated plant protein 04 (OsHPP04), and that rice cytosolic COPPER/ZINC -SUPEROXIDE DISMUTASE 2 (cCu/Zn-SOD2) is the target of OsHPP04. Rice plants overexpressing OsHPP04 or MgMO289 exhibited an increased susceptibility to M. graminicola and a higher Cu/Zn-SOD activity, but lower O2•- content, when compared with wild-type plants. Meanwhile, immune response assays showed that MgMO289 could suppress host innate immunity. These findings reveal a novel pathway for a plant pathogen effector that utilizes the host O2•--scavenging system to eliminate O2•- and suppress plant immunity.
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Affiliation(s)
- Handa Song
- Laboratory of Plant Nematology, South China Agricultural University, Guangzhou, China
- Guangdong Province Key Laboratory of Microbial Signals and Disease Control, South China Agricultural University, Guangzhou, China
| | - Borong Lin
- Laboratory of Plant Nematology, South China Agricultural University, Guangzhou, China
- Guangdong Province Key Laboratory of Microbial Signals and Disease Control, South China Agricultural University, Guangzhou, China
- Guangdong Laboratory of Lingnan Modern Agriculture, Guangzhou, China
| | - Qiuling Huang
- Laboratory of Plant Nematology, South China Agricultural University, Guangzhou, China
- Guangdong Province Key Laboratory of Microbial Signals and Disease Control, South China Agricultural University, Guangzhou, China
| | - Longhua Sun
- Laboratory of Plant Nematology, South China Agricultural University, Guangzhou, China
- Guangdong Province Key Laboratory of Microbial Signals and Disease Control, South China Agricultural University, Guangzhou, China
| | - Jiansong Chen
- Laboratory of Plant Nematology, South China Agricultural University, Guangzhou, China
- Guangdong Province Key Laboratory of Microbial Signals and Disease Control, South China Agricultural University, Guangzhou, China
| | - Lili Hu
- Laboratory of Plant Nematology, South China Agricultural University, Guangzhou, China
- Guangdong Province Key Laboratory of Microbial Signals and Disease Control, South China Agricultural University, Guangzhou, China
| | - Kan Zhuo
- Laboratory of Plant Nematology, South China Agricultural University, Guangzhou, China
- Guangdong Province Key Laboratory of Microbial Signals and Disease Control, South China Agricultural University, Guangzhou, China
- Guangdong Laboratory of Lingnan Modern Agriculture, Guangzhou, China
| | - Jinling Liao
- Laboratory of Plant Nematology, South China Agricultural University, Guangzhou, China
- Guangdong Province Key Laboratory of Microbial Signals and Disease Control, South China Agricultural University, Guangzhou, China
- Guangdong Eco-Engineering Polytechnic, Guangzhou, China
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Dong J, Zhou L, Feng A, Zhang S, Fu H, Chen L, Zhao J, Yang T, Yang W, Ma Y, Wang J, Zhu X, Liu Q, Liu B. The OsOXO2, OsOXO3 and OsOXO4 Positively Regulate Panicle Blast Resistance in Rice. RICE (NEW YORK, N.Y.) 2021; 14:51. [PMID: 34091752 PMCID: PMC8179873 DOI: 10.1186/s12284-021-00494-9] [Citation(s) in RCA: 1] [Impact Index Per Article: 0.3] [Reference Citation Analysis] [Abstract] [Key Words] [Grants] [Track Full Text] [Subscribe] [Scholar Register] [Received: 12/24/2020] [Accepted: 05/17/2021] [Indexed: 05/05/2023]
Abstract
BACKGROUND Although panicle blast is more destructive to yield loss than leaf blast in rice, the cloned genes that function in panicle blast resistance are still very limited and the molecular mechanisms underlying panicle blast resistance remain largely unknown. RESULTS In the present study, we have confirmed that the three Oxalate oxidase (OXO) genes, OsOXO2, OsOXO3 and OsOXO4 from a blast-resistant cultivar BC10 function in panicle blast resistance in rice. The expression of OsOXO2, OsOXO3 and OsOXO4 were induced by panicle blast inoculation. Subcellular localization analysis revealed that the three OXO proteins are all localized in the nucleus and cytoplasm. Simultaneous silencing of OsOXO2, OsOXO3 and OsOXO4 decreased rice resistance to panicle blast, whereas the OsOXO2, OsOXO3 and OsOXO4 overexpression rice plants individually showed enhanced panicle blast resistance. More H2O2 and higher expression levels of PR genes were observed in the overexpressing plants than in the control plants, while the silencing plants exhibited less H2O2 and lower expression levels of PR genes compared to the control plants. Moreover, phytohormone treatment and the phytohormone signaling related gene expression analysis showed that panicle blast resistance mediated by the three OXO genes was associated with the activation of JA and ABA signaling pathways but suppression of SA signaling pathway. CONCLUSION OsOXO2, OsOXO3 and OsOXO4 positively regulate panicle blast resistance in rice. The OXO genes could modulate the accumulation of H2O2 and expression levels of PR gene in plants. Moreover, the OXO genes mediated panicle blast resistance could be regulated by ABA, SA and JA, and may be associated with the activation of JA and ABA signaling pathways but suppression of the SA signaling pathway.
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Affiliation(s)
- Jingfang Dong
- Rice Research Institute, Guangdong Academy of Agricultural Sciences, Guangzhou, 510640 China
- Guangdong Key Laboratory of New Technology in Rice Breeding, Guangzhou, 510640 China
| | - Lian Zhou
- Rice Research Institute, Guangdong Academy of Agricultural Sciences, Guangzhou, 510640 China
- Guangdong Key Laboratory of New Technology in Rice Breeding, Guangzhou, 510640 China
| | - Aiqing Feng
- Guangdong Key Laboratory of New Technology in Plant Protection, Plant Protection Research Institute, Guangdong Academy of Agricultural Sciences, Guangzhou, 510640 China
| | - Shaohong Zhang
- Rice Research Institute, Guangdong Academy of Agricultural Sciences, Guangzhou, 510640 China
- Guangdong Key Laboratory of New Technology in Rice Breeding, Guangzhou, 510640 China
| | - Hua Fu
- Rice Research Institute, Guangdong Academy of Agricultural Sciences, Guangzhou, 510640 China
- Guangdong Key Laboratory of New Technology in Rice Breeding, Guangzhou, 510640 China
| | - Luo Chen
- Rice Research Institute, Guangdong Academy of Agricultural Sciences, Guangzhou, 510640 China
- Guangdong Key Laboratory of New Technology in Rice Breeding, Guangzhou, 510640 China
| | - Junliang Zhao
- Rice Research Institute, Guangdong Academy of Agricultural Sciences, Guangzhou, 510640 China
- Guangdong Key Laboratory of New Technology in Rice Breeding, Guangzhou, 510640 China
| | - Tifeng Yang
- Rice Research Institute, Guangdong Academy of Agricultural Sciences, Guangzhou, 510640 China
- Guangdong Key Laboratory of New Technology in Rice Breeding, Guangzhou, 510640 China
| | - Wu Yang
- Rice Research Institute, Guangdong Academy of Agricultural Sciences, Guangzhou, 510640 China
- Guangdong Key Laboratory of New Technology in Rice Breeding, Guangzhou, 510640 China
| | - Yamei Ma
- Rice Research Institute, Guangdong Academy of Agricultural Sciences, Guangzhou, 510640 China
- Guangdong Key Laboratory of New Technology in Rice Breeding, Guangzhou, 510640 China
| | - Jian Wang
- Rice Research Institute, Guangdong Academy of Agricultural Sciences, Guangzhou, 510640 China
- Guangdong Key Laboratory of New Technology in Rice Breeding, Guangzhou, 510640 China
| | - Xiaoyuan Zhu
- Guangdong Key Laboratory of New Technology in Plant Protection, Plant Protection Research Institute, Guangdong Academy of Agricultural Sciences, Guangzhou, 510640 China
| | - Qing Liu
- Rice Research Institute, Guangdong Academy of Agricultural Sciences, Guangzhou, 510640 China
- Guangdong Key Laboratory of New Technology in Rice Breeding, Guangzhou, 510640 China
| | - Bin Liu
- Rice Research Institute, Guangdong Academy of Agricultural Sciences, Guangzhou, 510640 China
- Guangdong Key Laboratory of New Technology in Rice Breeding, Guangzhou, 510640 China
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Song L, Fang Y, Chen L, Wang J, Chen X. Role of non-coding RNAs in plant immunity. PLANT COMMUNICATIONS 2021; 2:100180. [PMID: 34027394 PMCID: PMC8132121 DOI: 10.1016/j.xplc.2021.100180] [Citation(s) in RCA: 52] [Impact Index Per Article: 17.3] [Reference Citation Analysis] [Abstract] [Key Words] [MESH Headings] [Track Full Text] [Subscribe] [Scholar Register] [Received: 01/07/2021] [Revised: 03/01/2021] [Accepted: 03/17/2021] [Indexed: 05/06/2023]
Abstract
Crops are exposed to attacks by various pathogens that cause substantial yield losses and severely threaten food security. To cope with pathogenic infection, crops have elaborated strategies to enhance resistance against pathogens. In addition to the role of protein-coding genes as key regulators in plant immunity, accumulating evidence has demonstrated the importance of non-coding RNAs (ncRNAs) in the plant immune response. Here, we summarize the roles and molecular mechanisms of endogenous ncRNAs, especially microRNAs (miRNAs), long ncRNAs (lncRNAs), and circular RNAs (circRNAs), in plant immunity. We discuss the coordination between miRNAs and small interfering RNAs (siRNAs), between lncRNAs and miRNAs or siRNAs, and between circRNAs and miRNAs in the regulation of plant immune responses. We also address the role of cross-kingdom mobile small RNAs in plant-pathogen interactions. These insights improve our understanding of the mechanisms by which ncRNAs regulate plant immunity and can promote the development of better approaches for breeding disease-resistant crops.
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Affiliation(s)
- Li Song
- State Key Laboratory of Crop Gene Exploration and Utilization in Southwest China, Rice Research Institute, Sichuan Agricultural University at Wenjiang, Chengdu, Sichuan 611130, China
| | - Yu Fang
- State Key Laboratory of Crop Gene Exploration and Utilization in Southwest China, Rice Research Institute, Sichuan Agricultural University at Wenjiang, Chengdu, Sichuan 611130, China
| | - Lin Chen
- State Key Laboratory of Crop Gene Exploration and Utilization in Southwest China, Rice Research Institute, Sichuan Agricultural University at Wenjiang, Chengdu, Sichuan 611130, China
| | - Jing Wang
- State Key Laboratory of Crop Gene Exploration and Utilization in Southwest China, Rice Research Institute, Sichuan Agricultural University at Wenjiang, Chengdu, Sichuan 611130, China
- Corresponding author
| | - Xuewei Chen
- State Key Laboratory of Crop Gene Exploration and Utilization in Southwest China, Rice Research Institute, Sichuan Agricultural University at Wenjiang, Chengdu, Sichuan 611130, China
- Corresponding author
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Pagano L, Rossi R, Paesano L, Marmiroli N, Marmiroli M. miRNA regulation and stress adaptation in plants. ENVIRONMENTAL AND EXPERIMENTAL BOTANY 2021. [PMID: 0 DOI: 10.1016/j.envexpbot.2020.104369] [Citation(s) in RCA: 40] [Impact Index Per Article: 13.3] [Reference Citation Analysis] [Track Full Text] [Subscribe] [Scholar Register] [Indexed: 05/05/2023]
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Yang X, Zhang L, Yang Y, Schmid M, Wang Y. miRNA Mediated Regulation and Interaction between Plants and Pathogens. Int J Mol Sci 2021; 22:ijms22062913. [PMID: 33805611 PMCID: PMC7999934 DOI: 10.3390/ijms22062913] [Citation(s) in RCA: 28] [Impact Index Per Article: 9.3] [Reference Citation Analysis] [Abstract] [Key Words] [MESH Headings] [Download PDF] [Figures] [Journal Information] [Subscribe] [Scholar Register] [Received: 02/08/2021] [Revised: 03/08/2021] [Accepted: 03/10/2021] [Indexed: 11/16/2022] Open
Abstract
Plants have evolved diverse molecular mechanisms that enable them to respond to a wide range of pathogens. It has become clear that microRNAs, a class of short single-stranded RNA molecules that regulate gene expression at the transcriptional or post-translational level, play a crucial role in coordinating plant-pathogen interactions. Specifically, miRNAs have been shown to be involved in the regulation of phytohormone signals, reactive oxygen species, and NBS-LRR gene expression, thereby modulating the arms race between hosts and pathogens. Adding another level of complexity, it has recently been shown that specific lncRNAs (ceRNAs) can act as decoys that interact with and modulate the activity of miRNAs. Here we review recent findings regarding the roles of miRNA in plant defense, with a focus on the regulatory modes of miRNAs and their possible applications in breeding pathogen-resistance plants including crops and trees. Special emphasis is placed on discussing the role of miRNA in the arms race between hosts and pathogens, and the interaction between disease-related miRNAs and lncRNAs.
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Affiliation(s)
- Xiaoqian Yang
- Beijing Advanced Innovation Center for Tree Breeding by Molecular Design, Beijing Forestry University, Beijing 100083, China; (X.Y.); (L.Z.); (Y.Y.); (M.S.)
- National Engineering Laboratory for Tree Breeding, Beijing Forestry University, Beijing 100083, China
- College of Biological Sciences and Biotechnology, Beijing Forestry University, Beijing 100083, China
| | - Lichun Zhang
- Beijing Advanced Innovation Center for Tree Breeding by Molecular Design, Beijing Forestry University, Beijing 100083, China; (X.Y.); (L.Z.); (Y.Y.); (M.S.)
- National Engineering Laboratory for Tree Breeding, Beijing Forestry University, Beijing 100083, China
- College of Biological Sciences and Biotechnology, Beijing Forestry University, Beijing 100083, China
| | - Yuzhang Yang
- Beijing Advanced Innovation Center for Tree Breeding by Molecular Design, Beijing Forestry University, Beijing 100083, China; (X.Y.); (L.Z.); (Y.Y.); (M.S.)
- National Engineering Laboratory for Tree Breeding, Beijing Forestry University, Beijing 100083, China
- College of Biological Sciences and Biotechnology, Beijing Forestry University, Beijing 100083, China
| | - Markus Schmid
- Beijing Advanced Innovation Center for Tree Breeding by Molecular Design, Beijing Forestry University, Beijing 100083, China; (X.Y.); (L.Z.); (Y.Y.); (M.S.)
- Umeå Plant Science Centre, Department of Plant Physiology, Umeå University, SE-901 87 Umeå, Sweden
| | - Yanwei Wang
- Beijing Advanced Innovation Center for Tree Breeding by Molecular Design, Beijing Forestry University, Beijing 100083, China; (X.Y.); (L.Z.); (Y.Y.); (M.S.)
- National Engineering Laboratory for Tree Breeding, Beijing Forestry University, Beijing 100083, China
- College of Biological Sciences and Biotechnology, Beijing Forestry University, Beijing 100083, China
- Correspondence: ; Tel.: +86-010-62338105
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Chen JF, Zhao ZX, Li Y, Li TT, Zhu Y, Yang XM, Zhou SX, Wang H, Zhao JQ, Pu M, Feng H, Fan J, Zhang JW, Huang YY, Wang WM. Fine-Tuning Roles of Osa-miR159a in Rice Immunity Against Magnaporthe oryzae and Development. RICE (NEW YORK, N.Y.) 2021; 14:26. [PMID: 33677712 PMCID: PMC7937009 DOI: 10.1186/s12284-021-00469-w] [Citation(s) in RCA: 21] [Impact Index Per Article: 7.0] [Reference Citation Analysis] [Abstract] [Key Words] [Grants] [Track Full Text] [Subscribe] [Scholar Register] [Received: 08/27/2020] [Accepted: 02/24/2021] [Indexed: 05/04/2023]
Abstract
BACKGROUND Rice blast caused by Magnaporthe oryzae is one of the most destructive diseases of rice. An increasing number of microRNAs (miRNAs) have been reported to fine-tune rice immunity against M. oryzae and coordinate with growth and development. RESULTS Here, we showed that rice microRNA159a (Osa-miR159a) played a positive role in rice resistance to M. oryzae. The expression of Osa-miR159a was suppressed in a susceptible accession at 12, 24, and 48 h post-inoculation (hpi); it was upregulated in a resistant accession of M. oryzae at 24 hpi. The transgenic rice lines overexpressing Osa-miR159a were highly resistant to M. oryzae. In contrast, the transgenic lines expressing a short tandem target mimic (STTM) to block Osa-miR159a showed enhanced susceptibility. Knockout mutations of the target genes of Osa-miR159a, including OsGAMYB, OsGAMYBL, and OsZF, led to resistance to M. oryzae. Alteration of the expression of Osa-miR159a impacted yield traits including pollen and grain development. CONCLUSIONS Our results indicated that Osa-miR159a positively regulated rice immunity against M. oryzae by downregulating its target genes. Proper expression of Osa-miR159a was critical for coordinating rice blast resistance with grain development.
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Affiliation(s)
- Jin-Feng Chen
- Rice Research Institute and Key Lab for Major Crop Diseases, Sichuan Agricultural University, Chengdu, 611130, China
| | - Zhi-Xue Zhao
- Rice Research Institute and Key Lab for Major Crop Diseases, Sichuan Agricultural University, Chengdu, 611130, China
| | - Yan Li
- Rice Research Institute and Key Lab for Major Crop Diseases, Sichuan Agricultural University, Chengdu, 611130, China
| | - Ting-Ting Li
- Rice Research Institute and Key Lab for Major Crop Diseases, Sichuan Agricultural University, Chengdu, 611130, China
| | - Yong Zhu
- Rice Research Institute and Key Lab for Major Crop Diseases, Sichuan Agricultural University, Chengdu, 611130, China
| | - Xue-Mei Yang
- Rice Research Institute and Key Lab for Major Crop Diseases, Sichuan Agricultural University, Chengdu, 611130, China
| | - Shi-Xin Zhou
- Rice Research Institute and Key Lab for Major Crop Diseases, Sichuan Agricultural University, Chengdu, 611130, China
| | - He Wang
- Rice Research Institute and Key Lab for Major Crop Diseases, Sichuan Agricultural University, Chengdu, 611130, China
| | - Ji-Qun Zhao
- Rice Research Institute and Key Lab for Major Crop Diseases, Sichuan Agricultural University, Chengdu, 611130, China
| | - Mei Pu
- Rice Research Institute and Key Lab for Major Crop Diseases, Sichuan Agricultural University, Chengdu, 611130, China
| | - Hui Feng
- Rice Research Institute and Key Lab for Major Crop Diseases, Sichuan Agricultural University, Chengdu, 611130, China
| | - Jing Fan
- Rice Research Institute and Key Lab for Major Crop Diseases, Sichuan Agricultural University, Chengdu, 611130, China
| | - Ji-Wei Zhang
- Rice Research Institute and Key Lab for Major Crop Diseases, Sichuan Agricultural University, Chengdu, 611130, China
| | - Yan-Yan Huang
- Rice Research Institute and Key Lab for Major Crop Diseases, Sichuan Agricultural University, Chengdu, 611130, China
| | - Wen-Ming Wang
- Rice Research Institute and Key Lab for Major Crop Diseases, Sichuan Agricultural University, Chengdu, 611130, China.
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65
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Feng Q, Li Y, Zhao ZX, Wang WM. Contribution of Small RNA Pathway to Interactions of Rice with Pathogens and Insect Pests. RICE (NEW YORK, N.Y.) 2021; 14:15. [PMID: 33547972 PMCID: PMC7867673 DOI: 10.1186/s12284-021-00458-z] [Citation(s) in RCA: 2] [Impact Index Per Article: 0.7] [Reference Citation Analysis] [Abstract] [Key Words] [Grants] [Track Full Text] [Subscribe] [Scholar Register] [Received: 09/12/2020] [Accepted: 01/28/2021] [Indexed: 05/20/2023]
Abstract
Small RNAs (sRNAs) are mainly classified into microRNAs (miRNAs) and small interfering RNAs (siRNAs) according to their origin. miRNAs originate from single-stranded RNA precursors, whereas siRNAs originate from double-stranded RNA precursors that are synthesized by RNA-dependent RNA polymerases. Both of single-stranded and double-stranded RNA precursors are processed into sRNAs by Dicer-like proteins. Then, the sRNAs are loaded into ARGONAUTE proteins, forming RNA-induced silencing complexes (RISCs). The RISCs repress the expression of target genes with sequences complementary to the sRNAs through the cleavage of transcripts, the inhibition of translation or DNA methylation. Here, we summarize the recent progress of sRNA pathway in the interactions of rice with various parasitic organisms, including fungi, viruses, bacteria, as well as insects. Besides, we also discuss the hormone signal in sRNA pathway, and the emerging roles of circular RNAs and long non-coding RNAs in rice immunity. Obviously, small RNA pathway may act as a part of rice innate immunity to coordinate with growth and development.
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Affiliation(s)
- Qin Feng
- Rice Research Institute and Research Center for Crop Disease and Insect Pests, Sichuan Agricultural University at Wenjiang, 211 Huimin Road, Wenjiang District, Chengdu, 611130 China
| | - Yan Li
- Rice Research Institute and Research Center for Crop Disease and Insect Pests, Sichuan Agricultural University at Wenjiang, 211 Huimin Road, Wenjiang District, Chengdu, 611130 China
| | - Zhi-Xue Zhao
- Rice Research Institute and Research Center for Crop Disease and Insect Pests, Sichuan Agricultural University at Wenjiang, 211 Huimin Road, Wenjiang District, Chengdu, 611130 China
| | - Wen-Ming Wang
- Rice Research Institute and Research Center for Crop Disease and Insect Pests, Sichuan Agricultural University at Wenjiang, 211 Huimin Road, Wenjiang District, Chengdu, 611130 China
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Wang H, Li Y, Chern M, Zhu Y, Zhang LL, Lu JH, Li XP, Dang WQ, Ma XC, Yang ZR, Yao SZ, Zhao ZX, Fan J, Huang YY, Zhang JW, Pu M, Wang J, He M, Li WT, Chen XW, Wu XJ, Li SG, Li P, Li Y, Ronald PC, Wang WM. Suppression of rice miR168 improves yield, flowering time and immunity. NATURE PLANTS 2021; 7:129-136. [PMID: 33594262 DOI: 10.1038/s41477-021-00852-x] [Citation(s) in RCA: 59] [Impact Index Per Article: 19.7] [Reference Citation Analysis] [Abstract] [MESH Headings] [Track Full Text] [Subscribe] [Scholar Register] [Received: 12/10/2019] [Accepted: 01/12/2021] [Indexed: 05/20/2023]
Abstract
MicroRNA168 (miR168) is a key miRNA that targets Argonaute1 (AGO1), a major component of the RNA-induced silencing complex1,2. Previously, we reported that miR168 expression was responsive to infection by Magnaporthe oryzae, the causal agent of rice blast disease3. However, how miR168 regulates immunity to rice blast and whether it affects rice development remains unclear. Here, we report our discovery that the suppression of miR168 by a target mimic (MIM168) not only improves grain yield and shortens flowering time in rice but also enhances immunity to M. oryzae. These results were validated through repeated tests in rice fields in the absence and presence of rice blast pressure. We found that the miR168-AGO1 module regulates miR535 to improve yield by increasing panicle number, miR164 to reduce flowering time, and miR1320 and miR164 to enhance immunity. Our discovery demonstrates that changes in a single miRNA enhance the expression of multiple agronomically important traits.
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Affiliation(s)
- He Wang
- State Key Laboratory of Crop Gene Exploration and Utilization in Southwest China, Sichuan Agricultural University, Chengdu, China
- Rice Research Institute and Key Lab for Major Crop Diseases, Sichuan Agricultural University, Chengdu, China
| | - Yan Li
- State Key Laboratory of Crop Gene Exploration and Utilization in Southwest China, Sichuan Agricultural University, Chengdu, China
- Rice Research Institute and Key Lab for Major Crop Diseases, Sichuan Agricultural University, Chengdu, China
| | - Mawsheng Chern
- Department of Plant Pathology, University of California Davis, and the Joint BioEnergy Institute, Davis, CA, USA
| | - Yong Zhu
- State Key Laboratory of Crop Gene Exploration and Utilization in Southwest China, Sichuan Agricultural University, Chengdu, China
- Rice Research Institute and Key Lab for Major Crop Diseases, Sichuan Agricultural University, Chengdu, China
| | - Ling-Li Zhang
- Rice Research Institute and Key Lab for Major Crop Diseases, Sichuan Agricultural University, Chengdu, China
| | - Jun-Hua Lu
- Rice Research Institute and Key Lab for Major Crop Diseases, Sichuan Agricultural University, Chengdu, China
| | - Xu-Pu Li
- Rice Research Institute and Key Lab for Major Crop Diseases, Sichuan Agricultural University, Chengdu, China
| | - Wen-Qiang Dang
- Rice Research Institute and Key Lab for Major Crop Diseases, Sichuan Agricultural University, Chengdu, China
| | - Xiao-Chun Ma
- Rice Research Institute and Key Lab for Major Crop Diseases, Sichuan Agricultural University, Chengdu, China
| | - Zhi-Rui Yang
- The State Key Laboratory of Protein and Plant Gene Research, College of Life Sciences, Peking University, Beijing, China
| | - Sheng-Ze Yao
- The State Key Laboratory of Protein and Plant Gene Research, College of Life Sciences, Peking University, Beijing, China
| | - Zhi-Xue Zhao
- State Key Laboratory of Crop Gene Exploration and Utilization in Southwest China, Sichuan Agricultural University, Chengdu, China
- Rice Research Institute and Key Lab for Major Crop Diseases, Sichuan Agricultural University, Chengdu, China
| | - Jing Fan
- State Key Laboratory of Crop Gene Exploration and Utilization in Southwest China, Sichuan Agricultural University, Chengdu, China
- Rice Research Institute and Key Lab for Major Crop Diseases, Sichuan Agricultural University, Chengdu, China
| | - Yan-Yan Huang
- State Key Laboratory of Crop Gene Exploration and Utilization in Southwest China, Sichuan Agricultural University, Chengdu, China
- Rice Research Institute and Key Lab for Major Crop Diseases, Sichuan Agricultural University, Chengdu, China
| | - Ji-Wei Zhang
- State Key Laboratory of Crop Gene Exploration and Utilization in Southwest China, Sichuan Agricultural University, Chengdu, China
- Rice Research Institute and Key Lab for Major Crop Diseases, Sichuan Agricultural University, Chengdu, China
| | - Mei Pu
- State Key Laboratory of Crop Gene Exploration and Utilization in Southwest China, Sichuan Agricultural University, Chengdu, China
- Rice Research Institute and Key Lab for Major Crop Diseases, Sichuan Agricultural University, Chengdu, China
| | - Jing Wang
- State Key Laboratory of Crop Gene Exploration and Utilization in Southwest China, Sichuan Agricultural University, Chengdu, China
- Rice Research Institute and Key Lab for Major Crop Diseases, Sichuan Agricultural University, Chengdu, China
| | - Min He
- State Key Laboratory of Crop Gene Exploration and Utilization in Southwest China, Sichuan Agricultural University, Chengdu, China
- Rice Research Institute and Key Lab for Major Crop Diseases, Sichuan Agricultural University, Chengdu, China
| | - Wei-Tao Li
- State Key Laboratory of Crop Gene Exploration and Utilization in Southwest China, Sichuan Agricultural University, Chengdu, China
- Rice Research Institute and Key Lab for Major Crop Diseases, Sichuan Agricultural University, Chengdu, China
| | - Xue-Wei Chen
- State Key Laboratory of Crop Gene Exploration and Utilization in Southwest China, Sichuan Agricultural University, Chengdu, China
- Rice Research Institute and Key Lab for Major Crop Diseases, Sichuan Agricultural University, Chengdu, China
| | - Xian-Jun Wu
- State Key Laboratory of Crop Gene Exploration and Utilization in Southwest China, Sichuan Agricultural University, Chengdu, China
- Rice Research Institute and Key Lab for Major Crop Diseases, Sichuan Agricultural University, Chengdu, China
| | - Shi-Gui Li
- State Key Laboratory of Crop Gene Exploration and Utilization in Southwest China, Sichuan Agricultural University, Chengdu, China
- Rice Research Institute and Key Lab for Major Crop Diseases, Sichuan Agricultural University, Chengdu, China
| | - Ping Li
- State Key Laboratory of Crop Gene Exploration and Utilization in Southwest China, Sichuan Agricultural University, Chengdu, China
- Rice Research Institute and Key Lab for Major Crop Diseases, Sichuan Agricultural University, Chengdu, China
| | - Yi Li
- The State Key Laboratory of Protein and Plant Gene Research, College of Life Sciences, Peking University, Beijing, China
| | - Pamela C Ronald
- Department of Plant Pathology, University of California Davis, and the Joint BioEnergy Institute, Davis, CA, USA
| | - Wen-Ming Wang
- State Key Laboratory of Crop Gene Exploration and Utilization in Southwest China, Sichuan Agricultural University, Chengdu, China.
- Rice Research Institute and Key Lab for Major Crop Diseases, Sichuan Agricultural University, Chengdu, China.
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Li Y, Wang LF, Bhutto SH, He XR, Yang XM, Zhou XH, Lin XY, Rajput AA, Li GB, Zhao JH, Zhou SX, Ji YP, Pu M, Wang H, Zhao ZX, Huang YY, Zhang JW, Qin P, Fan J, Wang WM. Blocking miR530 Improves Rice Resistance, Yield, and Maturity. FRONTIERS IN PLANT SCIENCE 2021; 12:729560. [PMID: 34527014 PMCID: PMC8435866 DOI: 10.3389/fpls.2021.729560] [Citation(s) in RCA: 0] [Impact Index Per Article: 0] [Reference Citation Analysis] [Abstract] [Key Words] [Track Full Text] [Subscribe] [Scholar Register] [Received: 06/23/2021] [Accepted: 07/27/2021] [Indexed: 05/04/2023]
Abstract
MicroRNAs fine-tune plant growth and resistance against multiple biotic and abiotic stresses. The trade-off between biomass and resistance can penalize crop yield. In this study, we have shown that rice miR530 regulates blast disease resistance, yield, and growth period. While the overexpression of miR530 results in compromised blast disease resistance, reduced grain yield, and late maturity, blocking miR530 using a target mimic (MIM530) leads to enhanced resistance, increased grain yield, and early maturity. Further study revealed that the accumulation of miR530 was decreased in both leaves and panicles along with the increase of age. Such expression patterns were accordant with the enhanced resistance from seedlings to adult plants, and the grain development from panicle formation to fully-filled seeds. Divergence analysis of miR530 precursor with upstream 1,000-bp promoter sequence in 11 rice species revealed that miR530 was diverse in Oryza sativa japonica and O. sativa indica group, which was consistent with the different accumulation of miR530 in japonica accessions and indica accessions. Altogether, our results indicate that miR530 coordinates rice resistance, yield, and maturity, thus providing a potential regulatory module for breeding programs aiming to improve yield and disease resistance.
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Mahesh HB, Shirke MD, Wang GL, Gowda M. In planta transcriptome analysis reveals tissue-specific expression of pathogenicity genes and microRNAs during rice-Magnaporthe interactions. Genomics 2020; 113:265-275. [PMID: 33326830 DOI: 10.1016/j.ygeno.2020.12.018] [Citation(s) in RCA: 1] [Impact Index Per Article: 0.3] [Reference Citation Analysis] [Abstract] [Key Words] [Track Full Text] [Journal Information] [Subscribe] [Scholar Register] [Received: 10/11/2019] [Revised: 11/23/2020] [Accepted: 12/10/2020] [Indexed: 12/17/2022]
Abstract
Transcriptional re-programming in host and pathogen upon leaf and neck infection is an evolving area of research for the rice blast community. Analysis of in planta rice transcriptome in leaf and neck tissues revealed tissue-specific and infection-specific expression of rice and Magnaporthe oryzae genes in host and pathogen. The glycosyl hydrolase, isocitrate lyase, cupin domain containing protein, TF2, CMPG1, CHIT17 and OsCML14 genes were uniquely expressed in leaf infection. Genes like cytochrome P450, inhibitor I family protein, GSTU6, abscisic stress ripening, and cupin domain containing protein were up-regulated during neck infection. In our microRNA sequencing study, Osa-miR166n-3p was highly expressed in upon Magnaporthe leaf infection, whereas osa-miR1661-3p, osa-miR166n-3p and osa-miR159b were overexpressed in neck infection. Here we report several transcripts being targeted by up and down regulated microRNAs during infection. The putative genes expressed upon infection in leaf and neck could be used in understanding the dual-epidemics of blast disease.
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Affiliation(s)
- H B Mahesh
- Genomics Laboratory, Centre for Cellular and Molecular Platforms (C-CAMP), National Centre for Biological Sciences (NCBS), Bengaluru 560065, India; Department of Genetics and Plant Breeding, College of Agriculture, V. C. Farm, Mandya, University of Agricultural Sciences, Bengaluru 560065, India; Centre for Functional Genomics and Bioinformatics, The University of Trans-disciplinary Health Science and Technology, Bengaluru 560064, India.
| | - Meghana Deepak Shirke
- Centre for Functional Genomics and Bioinformatics, The University of Trans-disciplinary Health Science and Technology, Bengaluru 560064, India
| | - Guo-Liang Wang
- Department of Genetics and Plant Breeding, College of Agriculture, V. C. Farm, Mandya, University of Agricultural Sciences, Bengaluru 560065, India
| | - Malali Gowda
- Department of Plant Pathology, College of Food, Agricultural and Environmental Sciences, The Ohio State University, Columbus 43210, USA; Centre for Functional Genomics and Bioinformatics, The University of Trans-disciplinary Health Science and Technology, Bengaluru 560064, India.
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A Comprehensive Analysis of MicroRNAs Expressed in Susceptible and Resistant Rice Cultivars during Rhizoctonia solani AG1-IA Infection Causing Sheath Blight Disease. Int J Mol Sci 2020; 21:ijms21217974. [PMID: 33120987 PMCID: PMC7662745 DOI: 10.3390/ijms21217974] [Citation(s) in RCA: 6] [Impact Index Per Article: 1.5] [Reference Citation Analysis] [Abstract] [Key Words] [Track Full Text] [Download PDF] [Figures] [Journal Information] [Subscribe] [Scholar Register] [Received: 09/10/2020] [Revised: 10/08/2020] [Accepted: 10/08/2020] [Indexed: 12/21/2022] Open
Abstract
MicroRNAs regulate plant responses to fungal infections and immunity. In this study, miRNAs were identified in six rice cultivars during a Rhizoctonia solani Kühn AG1-IA infection using a deep sequencing approach. Known and novel miRNAs were analyzed in these rice cultivars, and a set of fungal infection/immunity-associated miRNAs and target genes were quantified by reverse transcription (RT)-qPCR in six rice cultivars. Additionally, the relative expression of these miRNAs was analyzed in different time points of the infection, wild species of rice, and in response to different strains of R. solani. Osa-miR1320-5p showed preferential expression during the fungal infection in all the six rice genotypes, while Osa-miR156d, Osa-miR159b, Osa-miR820c, and Osa-miR1876 were differentially regulated in susceptible and resistant genotypes. A greater degree of downregulation of miRNAs was observed during the initial time points of infection (24-72 h), suggesting a maximum molecular activity of rice-R. solani interaction and resistance response of the host during the early phase of infection. After R. solani infection, the expression of Osa-miR820c and Osa-miR156d was downregulated in Oryza rufipogon, O. alta, O. latifolia, and O. minuta, while Osa-miR397b was downregulated in all the wild rice species except O. officinalis. This study provided comprehensive information on the repertoire of miRNAs expressed in six sheath blight disease-susceptible and resistant indica and aus rice cultivars.
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Li Y, Li X, Yang J, He Y. Natural antisense transcripts of MIR398 genes suppress microR398 processing and attenuate plant thermotolerance. Nat Commun 2020; 11:5351. [PMID: 33093449 PMCID: PMC7582911 DOI: 10.1038/s41467-020-19186-x] [Citation(s) in RCA: 33] [Impact Index Per Article: 8.3] [Reference Citation Analysis] [Abstract] [Track Full Text] [Download PDF] [Figures] [Journal Information] [Subscribe] [Scholar Register] [Received: 01/08/2020] [Accepted: 09/30/2020] [Indexed: 12/13/2022] Open
Abstract
MicroRNAs (miRNAs) and natural antisense transcripts (NATs) control many biological processes and have been broadly applied for genetic manipulation of eukaryotic gene expression. Still unclear, however, are whether and how NATs regulate miRNA production. Here, we report that the cis-NATs of MIR398 genes repress the processing of their pri-miRNAs. Through genome-wide analysis of RNA sequencing data, we identify cis-NATs of MIRNA genes in Arabidopsis and Brassica. In Arabidopsis, MIR398b and MIR398c are coexpressed in vascular tissues with their antisense genes NAT398b and NAT398c, respectively. Knock down of NAT398b and NAT398c promotes miR398 processing, resulting in stronger plant thermotolerance owing to silencing of miR398-targeted genes; in contrast, their overexpression activates NAT398b and NAT398c, causing poorer thermotolerance due to the upregulation of miR398-targeted genes. Unexpectedly, overexpression of MIR398b and MIR398c activates NAT398b and NAT398c. Taken together, these results suggest that NAT398b/c repress miR398 biogenesis and attenuate plant thermotolerance via a regulatory loop. MiRNAs and natural antisense transcripts can both regulate gene expression and plant development. Here, the authors show that cis-NATs to MIR398 repress processing of pri-miR398 and that cis-NAT expression is downregulated at high temperatures, contributing to miR398 mediated thermotolerance responses.
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Affiliation(s)
- Yajie Li
- National Key Laboratory of Plant Molecular Genetics, CAS Center for Excellence in Molecular Plant Sciences, Shanghai Institute of Plant Physiology and Ecology, Chinese Academy of Sciences, 200032, Shanghai, China.,University of the Chinese Academy of Sciences, 100049, Beijing, China
| | - Xiaorong Li
- National Key Laboratory of Plant Molecular Genetics, CAS Center for Excellence in Molecular Plant Sciences, Shanghai Institute of Plant Physiology and Ecology, Chinese Academy of Sciences, 200032, Shanghai, China.,University of the Chinese Academy of Sciences, 100049, Beijing, China
| | - Jun Yang
- National Key Laboratory of Plant Molecular Genetics, CAS Center for Excellence in Molecular Plant Sciences, Shanghai Institute of Plant Physiology and Ecology, Chinese Academy of Sciences, 200032, Shanghai, China.
| | - Yuke He
- National Key Laboratory of Plant Molecular Genetics, CAS Center for Excellence in Molecular Plant Sciences, Shanghai Institute of Plant Physiology and Ecology, Chinese Academy of Sciences, 200032, Shanghai, China.
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OsExo70B1 Positively Regulates Disease Resistance to Magnaporthe oryzae in Rice. Int J Mol Sci 2020; 21:ijms21197049. [PMID: 32992695 PMCID: PMC7582735 DOI: 10.3390/ijms21197049] [Citation(s) in RCA: 13] [Impact Index Per Article: 3.3] [Reference Citation Analysis] [Abstract] [Key Words] [Track Full Text] [Download PDF] [Figures] [Journal Information] [Subscribe] [Scholar Register] [Received: 09/09/2020] [Revised: 09/22/2020] [Accepted: 09/23/2020] [Indexed: 01/21/2023] Open
Abstract
The exocyst, an evolutionarily conserved octameric protein complex, mediates tethering of vesicles to the plasma membrane in the early stage of exocytosis. Arabidopsis Exo70, a subunit of the exocyst complex, has been found to be involved in plant immunity. Here, we characterize the function of OsExo70B1 in rice. OsExo70B1 mainly expresses in leaf and shoot and its expression is induced by pathogen-associated molecular patterns (PAMPs) and rice blast fungus Magnaporthe oryzae (M. oryzae). Knocking out OsExo70B1 results in significantly decreased resistance and defense responses to M. oryzae compared to the wild type, including more disease lesions and enhanced fungal growth, downregulated expression of pathogenesis-related (PR) genes, and decreased reactive oxygen species accumulation. In contrast, the exo70B1 mutant does not show any defects in growth and development. Furthermore, OsExo70B1 can interact with the receptor-like kinase OsCERK1, an essential component for chitin reception in rice. Taken together, our data demonstrate that OsExo70B1 functions as an important regulator in rice immunity.
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Lu BW, An FX, Cao LJ, Yang YJ, Liu PM, Wang X, Yang BL, Zhang YL, Ding YF, Liu J. Proteomic profiling uncovered the cytosolic superoxide dismutase BsSOD1 associated with plant defence in the herbal orchid Bletilla striata. FUNCTIONAL PLANT BIOLOGY : FPB 2020; 47:937-944. [PMID: 32586414 DOI: 10.1071/fp19345] [Citation(s) in RCA: 2] [Impact Index Per Article: 0.5] [Reference Citation Analysis] [Abstract] [MESH Headings] [Track Full Text] [Subscribe] [Scholar Register] [Received: 12/02/2019] [Accepted: 04/29/2020] [Indexed: 05/25/2023]
Abstract
The herbal orchid Bletilla striata (Thunb.) Rchb.f. has a long cultivation history and has been widely used in medicines and cosmetics. The fungal infection leaf blight (LB) seriously threatens B. striata cultivation. Here, we systemically collected wild B. striata accessions and isolated the accessions with strong resistance against LB. We carried out proteomic profiling analysis of LB-resistant and LB-susceptible accessions, and identified a large number of differentially expressed proteins with significant gene ontology enrichment for 'oxidoreductase activity.' Of the proteins identified in the reactive oxygen species signalling pathway, the protein abundance of the Cu-Zn superoxide dismutase BsSOD1 and its gene expression level were higher in LB-resistant accessions than in LB-susceptible lines. Transient expression of the dismutase fused with yellow fluorescent protein determined that its subcellular localisation is in the cytoplasm. Our study provides new insights into the molecular markers associated with fungal infection in B. striata.
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Affiliation(s)
- Bao-Wei Lu
- School of Chinese Medicine, Bozhou University, Bozhou, 236800, China
| | - Feng-Xia An
- School of Chinese Medicine, Bozhou University, Bozhou, 236800, China; and Corresponding authors. ;
| | - Liang-Jing Cao
- National Key Facility for Crop Resources and Genetic Improvement, Institute of Crop Sciences, Chinese Academy of Agricultural Sciences, Beijing, 100081, China
| | - Yong-Jian Yang
- School of Chinese Medicine, Bozhou University, Bozhou, 236800, China
| | - Peng-Ming Liu
- School of Chinese Medicine, Bozhou University, Bozhou, 236800, China
| | - Xuan Wang
- National Key Facility for Crop Resources and Genetic Improvement, Institute of Crop Sciences, Chinese Academy of Agricultural Sciences, Beijing, 100081, China
| | - Bao-Liang Yang
- School of Chinese Medicine, Bozhou University, Bozhou, 236800, China
| | - Yu-Lei Zhang
- National Key Facility for Crop Resources and Genetic Improvement, Institute of Crop Sciences, Chinese Academy of Agricultural Sciences, Beijing, 100081, China; and Wanbei Pharmaceutical Co. of Bozhou City Co. Ltd, Bozhou, 236800, China
| | | | - Jun Liu
- National Key Facility for Crop Resources and Genetic Improvement, Institute of Crop Sciences, Chinese Academy of Agricultural Sciences, Beijing, 100081, China; and Corresponding authors. ;
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Wang D, Sun T, Zhao S, Pan L, Liu H, Tian X. Physiological change alters endophytic bacterial community in clubroot of tumorous stem mustard infected by Plasmodiophora brassicae. BMC Microbiol 2020; 20:244. [PMID: 32762653 PMCID: PMC7412676 DOI: 10.1186/s12866-020-01930-4] [Citation(s) in RCA: 6] [Impact Index Per Article: 1.5] [Reference Citation Analysis] [Abstract] [Key Words] [Track Full Text] [Download PDF] [Figures] [Journal Information] [Subscribe] [Scholar Register] [Received: 05/09/2020] [Accepted: 07/29/2020] [Indexed: 12/26/2022] Open
Abstract
BACKGROUND Endophytic bacteria are considered as symbionts living within plants and are influenced by abiotic and biotic environments. Pathogen cause biotic stress, which may change physiology of plants and may affect the endophytic bacterial communiy. Here, we reveal how endophytic bacteria in tumorous stem mustard (Brassica juncea var. tumida) are affected by plant physiological changes caused by Plasmodiophora brassicae using 16S rRNA high-throughput sequencing. RESULTS The results showed that Proteobacteria was the dominant group in both healthy roots and clubroots, but their abundance differed. At the genus level, Pseudomonas was dominant in clubroots, whereas Rhodanobacter was the dominant in healthy roots. Hierarchical clustering, UniFrac-weighted principal component analysis (PCA), non-metric multidimensional scaling (NMDS) and analysis of similarities (ANOSIM) indicated significant differences between the endophytic bacterial communities in healthy roots and clubroots. The physiological properties including soluble sugar, soluble protein, methanol, peroxidase (POD) and superoxide dismutase (SOD) significantly differed between healthy roots and clubroots. The distance-based redundancy analysis (db-RDA) and two-factor correlation network showed that soluble sugar, soluble protein and methanol were strongly related to the endophytic bacterial community in clubroots, whereas POD and SOD correlated with the endophytic bacterial community in healthy roots. CONCLUSIONS Our results illustrate that physiologcial changes caused by P. brassicae infection may alter the endophytic bacterial community in clubroots of tumorous stem mustard.
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Affiliation(s)
| | - Tingting Sun
- Henan engineering research center of biological pesticide & fertilizer development and synergistic application, Henan Institute of Science and Technology, Xinxiang, Henan, China
| | - Songyu Zhao
- Henan engineering research center of biological pesticide & fertilizer development and synergistic application, Henan Institute of Science and Technology, Xinxiang, Henan, China
| | - Limei Pan
- Yangtze Normal University, Fuling, Chongqing, China
| | - Hongfang Liu
- Henan engineering research center of biological pesticide & fertilizer development and synergistic application, Henan Institute of Science and Technology, Xinxiang, Henan, China
| | - Xueliang Tian
- Henan engineering research center of biological pesticide & fertilizer development and synergistic application, Henan Institute of Science and Technology, Xinxiang, Henan, China.
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74
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Zhou SX, Zhu Y, Wang LF, Zheng YP, Chen JF, Li TT, Yang XM, Wang H, Li XP, Ma XC, Zhao JQ, Pu M, Feng H, Li Y, Fan J, Zhang JW, Huang YY, Wang WM. Osa-miR1873 fine-tunes rice immunity against Magnaporthe oryzae and yield traits. JOURNAL OF INTEGRATIVE PLANT BIOLOGY 2020; 62:1213-1226. [PMID: 31863525 DOI: 10.1111/jipb.12900] [Citation(s) in RCA: 34] [Impact Index Per Article: 8.5] [Reference Citation Analysis] [Abstract] [MESH Headings] [Track Full Text] [Subscribe] [Scholar Register] [Received: 09/19/2019] [Accepted: 12/20/2019] [Indexed: 05/04/2023]
Abstract
MicroRNAs (miRNAs) are known to fine-tune growth, development, and stress-induced responses. Osa-miR1873 is a rice-specific miRNA targeting LOC_Os05g01790. Here, we show that Osa-miR1873 fine-tunes rice immunity against Magnaporthe oryzae and yield traits via LOC_Os05g01790. Osa-miR1873 was significantly upregulated in a susceptible accession but downregulated in a resistance accession at 24 h post-inoculation (hpi) of M. oryzae. Overexpressing Osa-miR1873 enhanced susceptibility to M. oryzae and compromised induction of defense responses. In contrast, blocking Osa-miR1873 through target mimicry compromised susceptibility to M. oryzae and enhanced induction of defense responses. Altered expression of Osa-miR1873 also resulted in some defects in yield traits, including grain numbers and seed setting rate. Moreover, overexpression of the target gene LOC_Os05g01790 increased rice blast disease resistance but severely penalized growth and yield. Taken together, we demonstrate that Osa-miR1873 fine-tunes the rice immunity-growth trade-off via LOC_Os05g01790, and blocking Osa-miR1873 could improve blast disease resistance without significant yield penalty. Thus, the Osa-miR1873-LOC_Os05g01790 regulatory module is valuable in balancing yield traits and blast resistance.
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Affiliation(s)
- Shi-Xin Zhou
- State Key Laboratory of Crop Gene Exploration and Utilization in Southwest China, Sichuan Agricultural University, Chengdu, 611130, China
- Rice Research Institute and Key Lab for Major Crop Diseases, Sichuan Agricultural University, Chengdu, 611130, China
| | - Yong Zhu
- State Key Laboratory of Crop Gene Exploration and Utilization in Southwest China, Sichuan Agricultural University, Chengdu, 611130, China
- Rice Research Institute and Key Lab for Major Crop Diseases, Sichuan Agricultural University, Chengdu, 611130, China
| | - Liang-Fang Wang
- Rice Research Institute and Key Lab for Major Crop Diseases, Sichuan Agricultural University, Chengdu, 611130, China
| | - Ya-Ping Zheng
- Rice Research Institute and Key Lab for Major Crop Diseases, Sichuan Agricultural University, Chengdu, 611130, China
| | - Jin-Feng Chen
- Rice Research Institute and Key Lab for Major Crop Diseases, Sichuan Agricultural University, Chengdu, 611130, China
| | - Ting-Ting Li
- Rice Research Institute and Key Lab for Major Crop Diseases, Sichuan Agricultural University, Chengdu, 611130, China
| | - Xue-Mei Yang
- Rice Research Institute and Key Lab for Major Crop Diseases, Sichuan Agricultural University, Chengdu, 611130, China
| | - He Wang
- State Key Laboratory of Crop Gene Exploration and Utilization in Southwest China, Sichuan Agricultural University, Chengdu, 611130, China
- Rice Research Institute and Key Lab for Major Crop Diseases, Sichuan Agricultural University, Chengdu, 611130, China
| | - Xu-Pu Li
- Rice Research Institute and Key Lab for Major Crop Diseases, Sichuan Agricultural University, Chengdu, 611130, China
| | - Xiao-Chun Ma
- Rice Research Institute and Key Lab for Major Crop Diseases, Sichuan Agricultural University, Chengdu, 611130, China
| | - Ji-Qun Zhao
- State Key Laboratory of Crop Gene Exploration and Utilization in Southwest China, Sichuan Agricultural University, Chengdu, 611130, China
- Rice Research Institute and Key Lab for Major Crop Diseases, Sichuan Agricultural University, Chengdu, 611130, China
| | - Mei Pu
- State Key Laboratory of Crop Gene Exploration and Utilization in Southwest China, Sichuan Agricultural University, Chengdu, 611130, China
- Rice Research Institute and Key Lab for Major Crop Diseases, Sichuan Agricultural University, Chengdu, 611130, China
| | - Hui Feng
- State Key Laboratory of Crop Gene Exploration and Utilization in Southwest China, Sichuan Agricultural University, Chengdu, 611130, China
- Rice Research Institute and Key Lab for Major Crop Diseases, Sichuan Agricultural University, Chengdu, 611130, China
| | - Yan Li
- State Key Laboratory of Crop Gene Exploration and Utilization in Southwest China, Sichuan Agricultural University, Chengdu, 611130, China
- Rice Research Institute and Key Lab for Major Crop Diseases, Sichuan Agricultural University, Chengdu, 611130, China
| | - Jing Fan
- State Key Laboratory of Crop Gene Exploration and Utilization in Southwest China, Sichuan Agricultural University, Chengdu, 611130, China
- Rice Research Institute and Key Lab for Major Crop Diseases, Sichuan Agricultural University, Chengdu, 611130, China
| | - Ji-Wei Zhang
- State Key Laboratory of Crop Gene Exploration and Utilization in Southwest China, Sichuan Agricultural University, Chengdu, 611130, China
- Rice Research Institute and Key Lab for Major Crop Diseases, Sichuan Agricultural University, Chengdu, 611130, China
| | - Yan-Yan Huang
- State Key Laboratory of Crop Gene Exploration and Utilization in Southwest China, Sichuan Agricultural University, Chengdu, 611130, China
- Rice Research Institute and Key Lab for Major Crop Diseases, Sichuan Agricultural University, Chengdu, 611130, China
| | - Wen-Ming Wang
- State Key Laboratory of Crop Gene Exploration and Utilization in Southwest China, Sichuan Agricultural University, Chengdu, 611130, China
- Rice Research Institute and Key Lab for Major Crop Diseases, Sichuan Agricultural University, Chengdu, 611130, China
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Guo Y, Jia HR, Zhang X, Zhang X, Sun Q, Wang SZ, Zhao J, Wu FG. A Glucose/Oxygen-Exhausting Nanoreactor for Starvation- and Hypoxia-Activated Sustainable and Cascade Chemo-Chemodynamic Therapy. SMALL (WEINHEIM AN DER BERGSTRASSE, GERMANY) 2020; 16:e2000897. [PMID: 32537936 DOI: 10.1002/smll.202000897] [Citation(s) in RCA: 120] [Impact Index Per Article: 30.0] [Reference Citation Analysis] [Abstract] [Key Words] [MESH Headings] [Track Full Text] [Subscribe] [Scholar Register] [Received: 02/12/2020] [Revised: 04/30/2020] [Indexed: 06/11/2023]
Abstract
Fenton reaction-mediated chemodynamic therapy (CDT) can kill cancer cells via the conversion of H2 O2 to highly toxic HO•. However, problems such as insufficient H2 O2 levels in the tumor tissue and low Fenton reaction efficiency severely limit the performance of CDT. Here, the prodrug tirapazamine (TPZ)-loaded human serum albumin (HSA)-glucose oxidase (GOx) mixture is prepared and modified with a metal-polyphenol network composed of ferric ions (Fe3+ ) and tannic acid (TA), to obtain a self-amplified nanoreactor termed HSA-GOx-TPZ-Fe3+ -TA (HGTFT) for sustainable and cascade cancer therapy with exogenous H2 O2 production and TA-accelerated Fe3+ /Fe2+ conversion. The HGTFT nanoreactor can efficiently convert oxygen into HO• for CDT, consume glucose for starvation therapy, and provide a hypoxic environment for TPZ radical-mediated chemotherapy. Besides, it is revealed that the nanoreactor can significantly elevate the intracellular reactive oxygen species content and hypoxia level, decrease the intracellular glutathione content, and release metal ions in the tumors for metal ion interference therapy (also termed "ion-interference therapy" or "metal ion therapy"). Further, the nanoreactor can also increase the tumor's hypoxia level and efficiently inhibit tumor growth. It is believed that this tumor microenvironment-regulable nanoreactor with sustainable and cascade anticancer performance and excellent biosafety represents an advance in nanomedicine.
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Affiliation(s)
- Yuxin Guo
- State Key Laboratory of Bioelectronics, School of Biological Science and Medical Engineering, Southeast University, Nanjing, 210096, P. R. China
| | - Hao-Ran Jia
- State Key Laboratory of Bioelectronics, School of Biological Science and Medical Engineering, Southeast University, Nanjing, 210096, P. R. China
| | - Xiaodong Zhang
- State Key Laboratory of Bioelectronics, School of Biological Science and Medical Engineering, Southeast University, Nanjing, 210096, P. R. China
| | - Xinping Zhang
- State Key Laboratory of Bioelectronics, School of Biological Science and Medical Engineering, Southeast University, Nanjing, 210096, P. R. China
| | - Qing Sun
- State Key Laboratory of Bioelectronics, School of Biological Science and Medical Engineering, Southeast University, Nanjing, 210096, P. R. China
| | - Shao-Zhe Wang
- State Key Laboratory of Bioelectronics, School of Biological Science and Medical Engineering, Southeast University, Nanjing, 210096, P. R. China
| | - Jing Zhao
- Institute of Neurobiology, School of Medicine, Southeast University, Nanjing, 210096, P. R. China
| | - Fu-Gen Wu
- State Key Laboratory of Bioelectronics, School of Biological Science and Medical Engineering, Southeast University, Nanjing, 210096, P. R. China
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76
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Reactive Oxygen Species and Antioxidant Defense in Plants under Abiotic Stress: Revisiting the Crucial Role of a Universal Defense Regulator. Antioxidants (Basel) 2020; 9:antiox9080681. [PMID: 32751256 PMCID: PMC7465626 DOI: 10.3390/antiox9080681] [Citation(s) in RCA: 786] [Impact Index Per Article: 196.5] [Reference Citation Analysis] [Abstract] [Key Words] [Track Full Text] [Download PDF] [Figures] [Journal Information] [Subscribe] [Scholar Register] [Received: 06/24/2020] [Revised: 07/26/2020] [Accepted: 07/27/2020] [Indexed: 12/20/2022] Open
Abstract
Global climate change and associated adverse abiotic stress conditions, such as drought, salinity, heavy metals, waterlogging, extreme temperatures, oxygen deprivation, etc., greatly influence plant growth and development, ultimately affecting crop yield and quality, as well as agricultural sustainability in general. Plant cells produce oxygen radicals and their derivatives, so-called reactive oxygen species (ROS), during various processes associated with abiotic stress. Moreover, the generation of ROS is a fundamental process in higher plants and employs to transmit cellular signaling information in response to the changing environmental conditions. One of the most crucial consequences of abiotic stress is the disturbance of the equilibrium between the generation of ROS and antioxidant defense systems triggering the excessive accumulation of ROS and inducing oxidative stress in plants. Notably, the equilibrium between the detoxification and generation of ROS is maintained by both enzymatic and nonenzymatic antioxidant defense systems under harsh environmental stresses. Although this field of research has attracted massive interest, it largely remains unexplored, and our understanding of ROS signaling remains poorly understood. In this review, we have documented the recent advancement illustrating the harmful effects of ROS, antioxidant defense system involved in ROS detoxification under different abiotic stresses, and molecular cross-talk with other important signal molecules such as reactive nitrogen, sulfur, and carbonyl species. In addition, state-of-the-art molecular approaches of ROS-mediated improvement in plant antioxidant defense during the acclimation process against abiotic stresses have also been discussed.
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77
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Li XP, Ma XC, Wang H, Zhu Y, Liu XX, Li TT, Zheng YP, Zhao JQ, Zhang JW, Huang YY, Pu M, Feng H, Fan J, Li Y, Wang WM. Osa-miR162a fine-tunes rice resistance to Magnaporthe oryzae and Yield. RICE (NEW YORK, N.Y.) 2020; 13:38. [PMID: 32524307 PMCID: PMC7287001 DOI: 10.1186/s12284-020-00396-2] [Citation(s) in RCA: 30] [Impact Index Per Article: 7.5] [Reference Citation Analysis] [Abstract] [Key Words] [Grants] [Track Full Text] [Subscribe] [Scholar Register] [Received: 01/30/2020] [Accepted: 05/27/2020] [Indexed: 05/04/2023]
Abstract
MicroRNAs (miRNAs) play essential roles in rice immunity against Magnaporthe oryzae, the causative agent of rice blast disease. Here we demonstrate that Osa-miR162a fine-tunes rice immunity against M. oryzae and yield traits. Overexpression of Osa-miR162a enhances rice resistance to M. oryzae accompanying enhanced induction of defense-related genes and accumulation of hydrogen peroxide (H2O2). In contrast, blocking Osa-miR162 by overexpressing a target mimic of Osa-miR162a enhances susceptibility to blast fungus associating with compromised induction of defense-related gene expression and H2O2 accumulation. Moreover, the transgenic lines overexpressing Osa-miR162a display decreased seed setting rate resulting in slight reduced yield per plant, whereas the transgenic lines blocking Osa-miR162 show an increased number of grains per panicle, resulting in increased yield per plant. Altered accumulation of Osa-miR162 had a limited impact on the expression of rice Dicer-like 1 (OsDCL1) in these transgenic lines showing normal gross morphology, and silencing of OsDCL1 led to enhanced resistance to blast fungus similar to that caused by overexpression of Osa-miR162a, suggesting the involvement of OsDCL1 in Osa-miR162a-regulated resistance. Together, our results indicate that Osa-miR162a is involved in rice immunity against M. oryzae and fine-tunes resistance and yield.
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Affiliation(s)
- Xu-Pu Li
- State Key Laboratory of Crop Gene Exploration and Utilization in Southwest China, Sichuan Agricultural University, Chengdu, China
- Rice Research Institute and Key Lab for Major Crop Diseases, Sichuan Agricultural University, Chengdu, China
| | - Xiao-Chun Ma
- State Key Laboratory of Crop Gene Exploration and Utilization in Southwest China, Sichuan Agricultural University, Chengdu, China
- Rice Research Institute and Key Lab for Major Crop Diseases, Sichuan Agricultural University, Chengdu, China
| | - He Wang
- State Key Laboratory of Crop Gene Exploration and Utilization in Southwest China, Sichuan Agricultural University, Chengdu, China
- Rice Research Institute and Key Lab for Major Crop Diseases, Sichuan Agricultural University, Chengdu, China
| | - Yong Zhu
- State Key Laboratory of Crop Gene Exploration and Utilization in Southwest China, Sichuan Agricultural University, Chengdu, China
- Rice Research Institute and Key Lab for Major Crop Diseases, Sichuan Agricultural University, Chengdu, China
| | - Xin-Xian Liu
- State Key Laboratory of Crop Gene Exploration and Utilization in Southwest China, Sichuan Agricultural University, Chengdu, China
- Rice Research Institute and Key Lab for Major Crop Diseases, Sichuan Agricultural University, Chengdu, China
| | - Ting-Ting Li
- State Key Laboratory of Crop Gene Exploration and Utilization in Southwest China, Sichuan Agricultural University, Chengdu, China
- Rice Research Institute and Key Lab for Major Crop Diseases, Sichuan Agricultural University, Chengdu, China
| | - Ya-Ping Zheng
- State Key Laboratory of Crop Gene Exploration and Utilization in Southwest China, Sichuan Agricultural University, Chengdu, China
- Rice Research Institute and Key Lab for Major Crop Diseases, Sichuan Agricultural University, Chengdu, China
| | - Ji-Qun Zhao
- State Key Laboratory of Crop Gene Exploration and Utilization in Southwest China, Sichuan Agricultural University, Chengdu, China
- Rice Research Institute and Key Lab for Major Crop Diseases, Sichuan Agricultural University, Chengdu, China
| | - Ji-Wei Zhang
- State Key Laboratory of Crop Gene Exploration and Utilization in Southwest China, Sichuan Agricultural University, Chengdu, China
- Rice Research Institute and Key Lab for Major Crop Diseases, Sichuan Agricultural University, Chengdu, China
| | - Yan-Yan Huang
- State Key Laboratory of Crop Gene Exploration and Utilization in Southwest China, Sichuan Agricultural University, Chengdu, China
- Rice Research Institute and Key Lab for Major Crop Diseases, Sichuan Agricultural University, Chengdu, China
| | - Mei Pu
- State Key Laboratory of Crop Gene Exploration and Utilization in Southwest China, Sichuan Agricultural University, Chengdu, China
- Rice Research Institute and Key Lab for Major Crop Diseases, Sichuan Agricultural University, Chengdu, China
| | - Hui Feng
- State Key Laboratory of Crop Gene Exploration and Utilization in Southwest China, Sichuan Agricultural University, Chengdu, China
- Rice Research Institute and Key Lab for Major Crop Diseases, Sichuan Agricultural University, Chengdu, China
| | - Jing Fan
- State Key Laboratory of Crop Gene Exploration and Utilization in Southwest China, Sichuan Agricultural University, Chengdu, China
- Rice Research Institute and Key Lab for Major Crop Diseases, Sichuan Agricultural University, Chengdu, China
| | - Yan Li
- State Key Laboratory of Crop Gene Exploration and Utilization in Southwest China, Sichuan Agricultural University, Chengdu, China.
- Rice Research Institute and Key Lab for Major Crop Diseases, Sichuan Agricultural University, Chengdu, China.
| | - Wen-Ming Wang
- State Key Laboratory of Crop Gene Exploration and Utilization in Southwest China, Sichuan Agricultural University, Chengdu, China.
- Rice Research Institute and Key Lab for Major Crop Diseases, Sichuan Agricultural University, Chengdu, China.
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Zhou Y, Liu W, Li X, Sun D, Xu K, Feng C, Kue Foka IC, Ketehouli T, Gao H, Wang N, Dong Y, Wang F, Li H. Integration of sRNA, degradome, transcriptome analysis and functional investigation reveals gma-miR398c negatively regulates drought tolerance via GmCSDs and GmCCS in transgenic Arabidopsis and soybean. BMC PLANT BIOLOGY 2020; 20:190. [PMID: 32370790 PMCID: PMC7201782 DOI: 10.1186/s12870-020-02370-y] [Citation(s) in RCA: 22] [Impact Index Per Article: 5.5] [Reference Citation Analysis] [Abstract] [Key Words] [MESH Headings] [Grants] [Track Full Text] [Subscribe] [Scholar Register] [Received: 10/26/2019] [Accepted: 03/29/2020] [Indexed: 05/08/2023]
Abstract
BACKGROUND Drought conditions adversely affect soybean growth, resulting in severe yield losses worldwide. Increasing experimental evidence indicates miRNAs are important post-transcriptional regulators of gene expression. However, the drought-responsive molecular mechanism underlying miRNA-mRNA interactions remains largely uncharacterized in soybean. Meanwhile, the miRNA-regulated drought response pathways based on multi-omics approaches remain elusive. RESULTS We combined sRNA, transcriptome and degradome sequencing to elucidate the complex regulatory mechanism mediating soybean drought resistance. One-thousand transcripts from 384 target genes of 365 miRNAs, which were enriched in the peroxisome, were validated by degradome-seq. An integrated analysis showed 42 miRNA-target pairs exhibited inversely related expression profiles. Among these pairs, a strong induction of gma-miR398c as a major gene negatively regulates multiple peroxisome-related genes (GmCSD1a/b, GmCSD2a/b/c and GmCCS). Meanwhile, we detected that alternative splicing of GmCSD1a/b might affect soybean drought tolerance by bypassing gma-miR398c regulation. Overexpressing gma-miR398c in Arabidopsis thaliana L. resulted in decreased percentage germination, increased leaf water loss, and reduced survival under water deficiency, which displayed sensitivity to drought during seed germination and seedling growth. Furthermore, overexpressing gma-miR398c in soybean decreased GmCSD1a/b, GmCSD2a/b/c and GmCCS expression, which weakened the ability to scavenge O2.-, resulting in increased relative electrolyte leakage and stomatal opening compared with knockout miR398c and wild-type soybean under drought conditions. CONCLUSION The study indicates that gma-miR398c negatively regulates soybean drought tolerance, and provides novel insights useful for breeding programs to improve drought resistance by CRISPR technology.
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Affiliation(s)
- Yonggang Zhou
- College of Life Sciences, Engineering Research Center of the Chinese Ministry of Education for Bioreactor and Pharmaceutical Development, Jilin Agricultural University, Changchun, 130118, Jilin, China
| | - Weican Liu
- College of Life Sciences, Engineering Research Center of the Chinese Ministry of Education for Bioreactor and Pharmaceutical Development, Jilin Agricultural University, Changchun, 130118, Jilin, China
| | - Xiaowei Li
- College of Life Sciences, Engineering Research Center of the Chinese Ministry of Education for Bioreactor and Pharmaceutical Development, Jilin Agricultural University, Changchun, 130118, Jilin, China
| | - Daqian Sun
- College of Life Sciences, Engineering Research Center of the Chinese Ministry of Education for Bioreactor and Pharmaceutical Development, Jilin Agricultural University, Changchun, 130118, Jilin, China
| | - Keheng Xu
- College of Life Sciences, Engineering Research Center of the Chinese Ministry of Education for Bioreactor and Pharmaceutical Development, Jilin Agricultural University, Changchun, 130118, Jilin, China
| | - Chen Feng
- College of Life Sciences, Engineering Research Center of the Chinese Ministry of Education for Bioreactor and Pharmaceutical Development, Jilin Agricultural University, Changchun, 130118, Jilin, China
| | - Idrice Carther Kue Foka
- College of Life Sciences, Engineering Research Center of the Chinese Ministry of Education for Bioreactor and Pharmaceutical Development, Jilin Agricultural University, Changchun, 130118, Jilin, China
| | - Toi Ketehouli
- College of Life Sciences, Engineering Research Center of the Chinese Ministry of Education for Bioreactor and Pharmaceutical Development, Jilin Agricultural University, Changchun, 130118, Jilin, China
| | - Hongtao Gao
- College of Life Sciences, Engineering Research Center of the Chinese Ministry of Education for Bioreactor and Pharmaceutical Development, Jilin Agricultural University, Changchun, 130118, Jilin, China
| | - Nan Wang
- College of Life Sciences, Engineering Research Center of the Chinese Ministry of Education for Bioreactor and Pharmaceutical Development, Jilin Agricultural University, Changchun, 130118, Jilin, China
| | - Yuanyuan Dong
- College of Life Sciences, Engineering Research Center of the Chinese Ministry of Education for Bioreactor and Pharmaceutical Development, Jilin Agricultural University, Changchun, 130118, Jilin, China
| | - Fawei Wang
- College of Life Sciences, Engineering Research Center of the Chinese Ministry of Education for Bioreactor and Pharmaceutical Development, Jilin Agricultural University, Changchun, 130118, Jilin, China.
| | - Haiyan Li
- College of Life Sciences, Engineering Research Center of the Chinese Ministry of Education for Bioreactor and Pharmaceutical Development, Jilin Agricultural University, Changchun, 130118, Jilin, China.
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Zhang H, Xiang Y, He N, Liu X, Liu H, Fang L, Zhang F, Sun X, Zhang D, Li X, Terzaghi W, Yan J, Dai M. Enhanced Vitamin C Production Mediated by an ABA-Induced PTP-like Nucleotidase Improves Plant Drought Tolerance in Arabidopsis and Maize. MOLECULAR PLANT 2020; 13:760-776. [PMID: 32068157 DOI: 10.1016/j.molp.2020.02.005] [Citation(s) in RCA: 33] [Impact Index Per Article: 8.3] [Reference Citation Analysis] [Abstract] [Key Words] [MESH Headings] [Track Full Text] [Subscribe] [Scholar Register] [Received: 10/13/2019] [Revised: 02/09/2020] [Accepted: 02/10/2020] [Indexed: 05/26/2023]
Abstract
Abscisic acid (ABA) is a key phytohormone that mediates environmental stress responses. Vitamin C, or L-ascorbic acid (AsA), is the most abundant antioxidant protecting against stress damage in plants. How the ABA and AsA signaling pathways interact in stress responses remains elusive. In this study, we characterized the role of a previously unidentified gene, PTPN (PTP-like Nucleotidase) in plant drought tolerance. In Arabidopsis, (AtPTPN was expressed in multiple tissues and upregulated by ABA and drought treatments. Loss-of-function mutants of AtPTPN were hyposensitive to ABA but hypersensitive to drought stresses, whereas plants with enhanced expression of AtPTPN showed opposite phenotypes to . Overexpression of maize PTPN (ZmPTPN) promoted, while knockdown of ZmPTPN inhibited plant drought tolerance, indicating conserved and positive roles of PTPN in plant drought tolerance. We found that both AtPTPN and ZmPTPN release Pi by hydrolyzing GDP/GMP/dGMP/IMP/dIMP, and that AtPTPN positively regulated AsA production via endogenous Pi content control. Consistently, overexpression of VTC2, the rate-limiting synthetic enzyme in AsA biosynthesis, promoted AsA production and plant drought tolerance, and these effects were largely dependent on AtPTPN activity. Furthermore, we demonstrated that the heat shock transcription factor HSFA6a directly binds the AtPTPN promoter and activates AtPTPN expression. Genetic analyses showed that AtPTPN is required for HSFA6a to regulate ABA and drought responses. Taken together, our data indicate that PTPN-mediated crosstalk between the ABA signaling and AsA biosynthesis pathways positively controls plant drought tolerance.
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Affiliation(s)
- Hui Zhang
- National Key Laboratory of Crop Genetic Improvement, Huazhong Agricultural University, Wuhan 430070, China
| | - Yanli Xiang
- National Key Laboratory of Crop Genetic Improvement, Huazhong Agricultural University, Wuhan 430070, China
| | - Neng He
- National Key Laboratory of Crop Genetic Improvement, Huazhong Agricultural University, Wuhan 430070, China
| | - Xiangguo Liu
- Jilin Provincial Key Laboratory of Agricultural Biotechnology, Agro-Biotechnology Institute, Jilin Academy of Agricultural Sciences, Changchun 130124, China
| | - Hongbo Liu
- National Key Laboratory of Crop Genetic Improvement, Huazhong Agricultural University, Wuhan 430070, China
| | - Liping Fang
- National Key Laboratory of Crop Genetic Improvement, Huazhong Agricultural University, Wuhan 430070, China
| | - Fei Zhang
- National Key Laboratory of Crop Genetic Improvement, Huazhong Agricultural University, Wuhan 430070, China
| | - Xiaopeng Sun
- National Key Laboratory of Crop Genetic Improvement, Huazhong Agricultural University, Wuhan 430070, China
| | - Delin Zhang
- National Key Laboratory of Crop Genetic Improvement, Huazhong Agricultural University, Wuhan 430070, China
| | - Xingwang Li
- National Key Laboratory of Crop Genetic Improvement, Huazhong Agricultural University, Wuhan 430070, China
| | - William Terzaghi
- Department of Biology, Wilkes University, Wilkes-Barre, PA 18766, USA
| | - Jianbing Yan
- National Key Laboratory of Crop Genetic Improvement, Huazhong Agricultural University, Wuhan 430070, China
| | - Mingqiu Dai
- National Key Laboratory of Crop Genetic Improvement, Huazhong Agricultural University, Wuhan 430070, China.
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80
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Zhao ZX, Feng Q, Cao XL, Zhu Y, Wang H, Chandran V, Fan J, Zhao JQ, Pu M, Li Y, Wang WM. Osa-miR167d facilitates infection of Magnaporthe oryzae in rice. JOURNAL OF INTEGRATIVE PLANT BIOLOGY 2020; 62:702-715. [PMID: 31001874 DOI: 10.1111/jipb.12816] [Citation(s) in RCA: 53] [Impact Index Per Article: 13.3] [Reference Citation Analysis] [Abstract] [MESH Headings] [Track Full Text] [Subscribe] [Scholar Register] [Received: 03/13/2019] [Accepted: 04/16/2019] [Indexed: 05/04/2023]
Abstract
MicroRNAs (miRNAs) play important roles in rice response to Magnaporthe oryzae, the causative agent of rice blast disease. Studying the roles of rice miRNAs is of great significance for the disease control. Osa-miR167d belongs to a conserved miRNA family targeting auxin responsive factor (ARF) genes that act in developmental and stress-induced responses. Here, we show that Osa-miR167d plays a negative role in rice immunity against M. oryzae by suppressing its target gene. The expression of Osa-miR167d was significantly suppressed in a resistant accession at and after 24 h post inoculation (hpi), however, its expression was significantly increased at 24 hpi in the susceptible accession upon M. oryzae infection. Transgenic rice lines over-expressing Osa-miR167d were highly susceptible to multiple blast fungal strains. By contrast, transgenic lines expressing a target mimicry to block Osa-miR167d enhanced resistance to rice blast disease. In addition, knocking out the target gene ARF12 led to hyper-susceptibility to multiple blast fungal strains. Taken together, our results indicate that Osa-miR167d negatively regulate rice immunity to facilitate the infection of M. oryzae by downregulating ARF12. Thus, Osa-miR167d-ARF12 regulatory module could be valuable in improvement of blast-disease resistance.
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Affiliation(s)
- Zhi-Xue Zhao
- Rice Research Institute and Key Lab for Major Crop Diseases, Sichuan Agricultural University, Chengdu, 611130, China
| | - Qin Feng
- Rice Research Institute and Key Lab for Major Crop Diseases, Sichuan Agricultural University, Chengdu, 611130, China
| | - Xiao-Long Cao
- Rice Research Institute and Key Lab for Major Crop Diseases, Sichuan Agricultural University, Chengdu, 611130, China
| | - Yong Zhu
- Rice Research Institute and Key Lab for Major Crop Diseases, Sichuan Agricultural University, Chengdu, 611130, China
| | - He Wang
- Rice Research Institute and Key Lab for Major Crop Diseases, Sichuan Agricultural University, Chengdu, 611130, China
| | - Viswanathan Chandran
- Rice Research Institute and Key Lab for Major Crop Diseases, Sichuan Agricultural University, Chengdu, 611130, China
| | - Jing Fan
- Rice Research Institute and Key Lab for Major Crop Diseases, Sichuan Agricultural University, Chengdu, 611130, China
| | - Ji-Qun Zhao
- Rice Research Institute and Key Lab for Major Crop Diseases, Sichuan Agricultural University, Chengdu, 611130, China
| | - Mei Pu
- Rice Research Institute and Key Lab for Major Crop Diseases, Sichuan Agricultural University, Chengdu, 611130, China
| | - Yan Li
- Rice Research Institute and Key Lab for Major Crop Diseases, Sichuan Agricultural University, Chengdu, 611130, China
| | - Wen-Ming Wang
- Rice Research Institute and Key Lab for Major Crop Diseases, Sichuan Agricultural University, Chengdu, 611130, China
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Ge Q, Zhang Y, Xu Y, Bai M, Luo W, Wang B, Niu Y, Zhao Y, Li S, Weng Y, Wang Z, Qian Q, Chong K. Cyclophilin OsCYP20-2 with a novel variant integrates defense and cell elongation for chilling response in rice. THE NEW PHYTOLOGIST 2020; 225:2453-2467. [PMID: 31736073 PMCID: PMC7064896 DOI: 10.1111/nph.16324] [Citation(s) in RCA: 14] [Impact Index Per Article: 3.5] [Reference Citation Analysis] [Abstract] [Key Words] [MESH Headings] [Grants] [Track Full Text] [Subscribe] [Scholar Register] [Received: 06/10/2019] [Accepted: 10/31/2019] [Indexed: 05/20/2023]
Abstract
Coordinating stress defense and plant growth is a survival strategy for adaptation to different environments that contains a series of processes, such as, cell growth, division and differentiation. However, little is known about the coordination mechanism for protein conformation change. A cyclophilin OsCYP20-2 with a variant interacts with SLENDER RICE1 (SLR1) and OsFSD2 in the nucleus and chloroplasts, respectively, to integrate chilling tolerance and cell elongation in rice (Oryza sativa) (FSD2, Fe-superoxide dismutase 2). Mass spectrum assay showed that OsNuCYP20-2 localized at the nucleus (nuclear located OsCYP20-2) was a new variant of OsCYP20-2 that truncated 71 amino-acid residues in N-terminal. The loss-of function OsCYP20-2 mutant showed sensitivity to chilling stress with accumulation of extra reactive oxygen species (ROS). In chloroplasts, the full-length OsCYP20-2 promotes OsFSD2 forming homodimers which enhance its activity, eliminating the accumulation of ROS under chilling stress. However, the mutant had shorter epidermal cells in comparison with wild-type Hwayoung (HY). In the nucleus, OsCYP20-2 caused conformation change of SLR1 to promote its degradation for cell elongation. Our data reveal a cyclophilin with a variant with dual-localization in chloroplasts and the nucleus, which mediate chilling tolerance and cell elongation.
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Affiliation(s)
- Qiang Ge
- Key Laboratory of Plant Molecular PhysiologyInstitute of BotanyChinese Academy of SciencesBeijing100093China
- University of Chinese Academy of SciencesBeijing100049China
| | - Yuanyuan Zhang
- Key Laboratory of Plant Molecular PhysiologyInstitute of BotanyChinese Academy of SciencesBeijing100093China
| | - Yunyuan Xu
- Key Laboratory of Plant Molecular PhysiologyInstitute of BotanyChinese Academy of SciencesBeijing100093China
- Innovation Academy for Seed DesignChinese Academy of SciencesBeijing100101China
| | - Mingyi Bai
- The Key Laboratory of Plant Cell Engineering and Germplasm InnovationMinistry of EducationSchool of Life SciencesShandong UniversityJinan250100China
| | - Wei Luo
- Key Laboratory of Plant Molecular PhysiologyInstitute of BotanyChinese Academy of SciencesBeijing100093China
| | - Bo Wang
- Key Laboratory of Plant Molecular PhysiologyInstitute of BotanyChinese Academy of SciencesBeijing100093China
- University of Chinese Academy of SciencesBeijing100049China
| | - Yuda Niu
- Key Laboratory of Plant Molecular PhysiologyInstitute of BotanyChinese Academy of SciencesBeijing100093China
| | - Yuan Zhao
- Key Laboratory of Plant Molecular PhysiologyInstitute of BotanyChinese Academy of SciencesBeijing100093China
- University of Chinese Academy of SciencesBeijing100049China
| | - Shanshan Li
- Laboratory of Soft Matter PhysicsInstitute of PhysicsChinese Academy of SciencesBeijing100190China
| | - Yuxiang Weng
- Laboratory of Soft Matter PhysicsInstitute of PhysicsChinese Academy of SciencesBeijing100190China
| | - Zhiyong Wang
- Department of Plant BiologyCarnegie Institution for ScienceStanfordCA94305USA
| | - Qian Qian
- State Key Laboratory of Rice BiologyChina National Rice Research InstituteChinese Academy of Agricultural SciencesHangzhou310006China
| | - Kang Chong
- Key Laboratory of Plant Molecular PhysiologyInstitute of BotanyChinese Academy of SciencesBeijing100093China
- University of Chinese Academy of SciencesBeijing100049China
- Innovation Academy for Seed DesignChinese Academy of SciencesBeijing100101China
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Gao C, Sun J, Dong Y, Wang C, Xiao S, Mo L, Jiao Z. Comparative transcriptome analysis uncovers regulatory roles of long non-coding RNAs involved in resistance to powdery mildew in melon. BMC Genomics 2020; 21:125. [PMID: 32024461 PMCID: PMC7003419 DOI: 10.1186/s12864-020-6546-8] [Citation(s) in RCA: 15] [Impact Index Per Article: 3.8] [Reference Citation Analysis] [Abstract] [Key Words] [Download PDF] [Figures] [Journal Information] [Subscribe] [Scholar Register] [Received: 09/22/2019] [Accepted: 01/31/2020] [Indexed: 12/23/2022] Open
Abstract
Background Long non-coding RNAs (lncRNAs) are a class of non-coding RNAs with more than 200 nucleotides in length, which play vital roles in a wide range of biological processes. Powdery mildew disease (PM) has become a major threat to the production of melon. To investigate the potential roles of lncRNAs in resisting to PM in melon, it is necessary to identify lncRNAs and uncover their molecular functions. In this study, we compared the lncRNAs between a resistant and a susceptible melon in response to PM infection. Results It is reported that 11,612 lncRNAs were discovered, which were distributed across all 12 melon chromosomes, and > 85% were from intergenic regions. The melon lncRNAs have shorter transcript lengths and fewer exon numbers than protein-coding genes. In addition, a total of 407 and 611 lncRNAs were found to be differentially expressed after PM infection in PM-susceptible and PM-resistant melons, respectively. Furthermore, 1232 putative targets of differently expressed lncRNAs (DELs) were discovered and gene ontology enrichment (GO) analysis showed that these target genes were mainly enriched in stress-related terms. Consequently, co-expression patterns between LNC_018800 and CmWRKY21, LNC_018062 and MELO3C015771 (glutathione reductase coding gene), LNC_014937 and CmMLO5 were confirmed by qRT-PCR. Moreover, we also identified 24 lncRNAs that act as microRNA (miRNA) precursors, 43 lncRNAs as potential targets of 22 miRNA families and 13 lncRNAs as endogenous target mimics (eTMs) for 11 miRNAs. Conclusion This study shows the first characterization of lncRNAs involved in PM resistance in melon and provides a starting point for further investigation into the functions and regulatory mechanisms of lncRNAs in the resistance to PM.
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Affiliation(s)
- Chao Gao
- Shandong Key Laboratory of Greenhouse Vegetable Biology, Shandong Branch of National Improvement Center for Vegetable, Vegetable Science Observation and Experiment Station in Huang huai District of Ministry of Agriculture (Shandong), Institute of Vegetables and Flowers, Shandong Academy of Agricultural Sciences, Jinan, 250100, China.
| | - Jianlei Sun
- Shandong Key Laboratory of Greenhouse Vegetable Biology, Shandong Branch of National Improvement Center for Vegetable, Vegetable Science Observation and Experiment Station in Huang huai District of Ministry of Agriculture (Shandong), Institute of Vegetables and Flowers, Shandong Academy of Agricultural Sciences, Jinan, 250100, China
| | - Yumei Dong
- Shandong Key Laboratory of Greenhouse Vegetable Biology, Shandong Branch of National Improvement Center for Vegetable, Vegetable Science Observation and Experiment Station in Huang huai District of Ministry of Agriculture (Shandong), Institute of Vegetables and Flowers, Shandong Academy of Agricultural Sciences, Jinan, 250100, China
| | - Chongqi Wang
- Shandong Key Laboratory of Greenhouse Vegetable Biology, Shandong Branch of National Improvement Center for Vegetable, Vegetable Science Observation and Experiment Station in Huang huai District of Ministry of Agriculture (Shandong), Institute of Vegetables and Flowers, Shandong Academy of Agricultural Sciences, Jinan, 250100, China
| | - Shouhua Xiao
- Shandong Key Laboratory of Greenhouse Vegetable Biology, Shandong Branch of National Improvement Center for Vegetable, Vegetable Science Observation and Experiment Station in Huang huai District of Ministry of Agriculture (Shandong), Institute of Vegetables and Flowers, Shandong Academy of Agricultural Sciences, Jinan, 250100, China
| | - Longfei Mo
- College of horticulture, Jilin Agricultural University, Changchun, 130118, China
| | - Zigao Jiao
- Shandong Key Laboratory of Greenhouse Vegetable Biology, Shandong Branch of National Improvement Center for Vegetable, Vegetable Science Observation and Experiment Station in Huang huai District of Ministry of Agriculture (Shandong), Institute of Vegetables and Flowers, Shandong Academy of Agricultural Sciences, Jinan, 250100, China.
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Fan J, Quan W, Li GB, Hu XH, Wang Q, Wang H, Li XP, Luo X, Feng Q, Hu ZJ, Feng H, Pu M, Zhao JQ, Huang YY, Li Y, Zhang Y, Wang WM. circRNAs Are Involved in the Rice- Magnaporthe oryzae Interaction. PLANT PHYSIOLOGY 2020; 182:272-286. [PMID: 31628150 PMCID: PMC6945833 DOI: 10.1104/pp.19.00716] [Citation(s) in RCA: 37] [Impact Index Per Article: 9.3] [Reference Citation Analysis] [Abstract] [MESH Headings] [Grants] [Track Full Text] [Subscribe] [Scholar Register] [Received: 06/13/2019] [Accepted: 10/07/2019] [Indexed: 05/03/2023]
Abstract
Circular RNAs (circRNAs) play roles in various biological processes, but their functions in the rice (Oryza sativa) response to Magnaporthe oryzae remain elusive. Here, we demonstrate that circRNAs are involved in the rice-M. oryzae interaction using comparative circRNA-sequencing and transgenic approaches. We identified 2932 high-confidence circRNAs from young leaves of the blast-resistant accession International Rice Blast Line Pyricularia-Kanto51-m-Tsuyuake (IR25) and the blast-susceptible accession Lijiangxin Tuan Heigu (LTH) under M oryzae-infected or uninfected conditions; 636 were detected specifically upon M oryzae infection. The circRNAs in IR25 were significantly more diverse than those in LTH, especially under M. oryzae infection. Particularly, the number of circRNAs generated per parent gene was much higher in IR25 than in LTH and increased in IR25 but decreased in LTH upon M. oryzae infection. The higher diversity of circRNAs in IR25 was further associated with more frequent 3' and 5' alternative back-splicing and usage of complex splice sites. Moreover, a subset of circRNAs was differentially responsive to M oryzae in IR25 and LTH. We further confirmed that circR5g05160 promotes rice immunity against M oryzae Therefore, our data indicate that circRNA diversity is associated with different responses to M oryzae infection in rice and provide a starting point to investigate a new layer of regulation in the rice-M oryzae interaction.
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Affiliation(s)
- Jing Fan
- State Key Laboratory of Crop Gene Exploration and Utilization in Southwest China, Rice Research Institute, Sichuan Agricultural University, Chengdu 611130, Sichuan, China
| | - Weili Quan
- Center for Genome Analysis, ABLife Inc., Wuhan 430075, Hubei, China
| | - Guo-Bang Li
- State Key Laboratory of Crop Gene Exploration and Utilization in Southwest China, Rice Research Institute, Sichuan Agricultural University, Chengdu 611130, Sichuan, China
| | - Xiao-Hong Hu
- State Key Laboratory of Crop Gene Exploration and Utilization in Southwest China, Rice Research Institute, Sichuan Agricultural University, Chengdu 611130, Sichuan, China
| | - Qi Wang
- Center for Genome Analysis, ABLife Inc., Wuhan 430075, Hubei, China
| | - He Wang
- State Key Laboratory of Crop Gene Exploration and Utilization in Southwest China, Rice Research Institute, Sichuan Agricultural University, Chengdu 611130, Sichuan, China
| | - Xu-Pu Li
- State Key Laboratory of Crop Gene Exploration and Utilization in Southwest China, Rice Research Institute, Sichuan Agricultural University, Chengdu 611130, Sichuan, China
| | - Xiaotian Luo
- Laboratory for Genome Regulation and Human Health, ABLife Inc., Wuhan 430075, Hubei, China
| | - Qin Feng
- State Key Laboratory of Crop Gene Exploration and Utilization in Southwest China, Rice Research Institute, Sichuan Agricultural University, Chengdu 611130, Sichuan, China
| | - Zi-Jin Hu
- State Key Laboratory of Crop Gene Exploration and Utilization in Southwest China, Rice Research Institute, Sichuan Agricultural University, Chengdu 611130, Sichuan, China
| | - Hui Feng
- State Key Laboratory of Crop Gene Exploration and Utilization in Southwest China, Rice Research Institute, Sichuan Agricultural University, Chengdu 611130, Sichuan, China
| | - Mei Pu
- State Key Laboratory of Crop Gene Exploration and Utilization in Southwest China, Rice Research Institute, Sichuan Agricultural University, Chengdu 611130, Sichuan, China
| | - Ji-Qun Zhao
- State Key Laboratory of Crop Gene Exploration and Utilization in Southwest China, Rice Research Institute, Sichuan Agricultural University, Chengdu 611130, Sichuan, China
| | - Yan-Yan Huang
- State Key Laboratory of Crop Gene Exploration and Utilization in Southwest China, Rice Research Institute, Sichuan Agricultural University, Chengdu 611130, Sichuan, China
| | - Yan Li
- State Key Laboratory of Crop Gene Exploration and Utilization in Southwest China, Rice Research Institute, Sichuan Agricultural University, Chengdu 611130, Sichuan, China
| | - Yi Zhang
- Center for Genome Analysis, ABLife Inc., Wuhan 430075, Hubei, China
| | - Wen-Ming Wang
- State Key Laboratory of Crop Gene Exploration and Utilization in Southwest China, Rice Research Institute, Sichuan Agricultural University, Chengdu 611130, Sichuan, China
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Zeng H, Zhang X, Ding M, Zhu Y. Integrated analyses of miRNAome and transcriptome reveal zinc deficiency responses in rice seedlings. BMC PLANT BIOLOGY 2019; 19:585. [PMID: 31878878 PMCID: PMC6933703 DOI: 10.1186/s12870-019-2203-2] [Citation(s) in RCA: 8] [Impact Index Per Article: 1.6] [Reference Citation Analysis] [Abstract] [Key Words] [MESH Headings] [Grants] [Track Full Text] [Subscribe] [Scholar Register] [Received: 09/23/2019] [Accepted: 12/15/2019] [Indexed: 05/21/2023]
Abstract
BACKGROUND Zinc (Zn) deficiency is one of the most widespread soil constraints affecting rice productivity, but the molecular mechanisms underlying the regulation of Zn deficiency response is still limited. Here, we aim to understand the molecular mechanisms of Zn deficiency response by integrating the analyses of the global miRNA and mRNA expression profiles under Zn deficiency and resupply in rice seedlings by integrating Illumina's high-throughput small RNA sequencing and transcriptome sequencing. RESULTS The transcriptome sequencing identified 360 genes that were differentially expressed in the shoots and roots of Zn-deficient rice seedlings, and 97 of them were recovered after Zn resupply. A total of 68 miRNAs were identified to be differentially expressed under Zn deficiency and/or Zn resupply. The integrated analyses of miRNAome and transcriptome data showed that 12 differentially expressed genes are the potential target genes of 10 Zn-responsive miRNAs such as miR171g-5p, miR397b-5p, miR398a-5p and miR528-5p. Some miRNA genes and differentially expressed genes were selected for validation by quantitative RT-PCR, and their expressions were similar to that of the sequencing results. CONCLUSION These results provide insights into miRNA-mediated regulatory pathways in Zn deficiency response, and provide candidate genes for genetic improvement of Zn deficiency tolerance in rice.
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Affiliation(s)
- Houqing Zeng
- College of Life and Environmental Sciences, Hangzhou Normal University, Hangzhou, 311121 China
| | - Xin Zhang
- College of Agriculture and Biotechnology, Hunan University of Humanities, Science and Technology, Loudi, 417000 China
| | - Ming Ding
- College of Resources and Environmental Sciences, Nanjing Agricultural University, Nanjing, 210095 China
| | - Yiyong Zhu
- College of Resources and Environmental Sciences, Nanjing Agricultural University, Nanjing, 210095 China
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85
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Xie X, He Z, Chen N, Tang Z, Wang Q, Cai Y. The Roles of Environmental Factors in Regulation of Oxidative Stress in Plant. BIOMED RESEARCH INTERNATIONAL 2019; 2019:9732325. [PMID: 31205950 PMCID: PMC6530150 DOI: 10.1155/2019/9732325] [Citation(s) in RCA: 136] [Impact Index Per Article: 27.2] [Reference Citation Analysis] [Abstract] [MESH Headings] [Track Full Text] [Download PDF] [Figures] [Subscribe] [Scholar Register] [Received: 02/26/2019] [Accepted: 04/16/2019] [Indexed: 02/05/2023]
Abstract
Exposure to a variety of environmental factors such as salinity, drought, metal toxicity, extreme temperature, air pollutants, ultraviolet-B (UV-B) radiation, pesticides, and pathogen infection leads to subject oxidative stress in plants, which in turn affects multiple biological processes via reactive oxygen species (ROS) generation. ROS include hydroxyl radicals, singlet oxygen, and hydrogen peroxide in the plant cells and activates signaling pathways leading to some changes of physiological, biochemical, and molecular mechanisms in cellular metabolism. Excessive ROS, however, cause oxidative stress, a state of imbalance between the production of ROS and the neutralization of free radicals by antioxidants, resulting in damage of cellular components including lipids, nucleic acids, metabolites, and proteins, which finally leads to the death of cells in plants. Thus, maintaining a physiological level of ROS is crucial for aerobic organisms, which relies on the combined operation of enzymatic and nonenzymatic antioxidants. In order to improve plants' tolerance towards the harsh environment, it is vital to reinforce the comprehension of oxidative stress and antioxidant systems. In this review, recent findings on the metabolism of ROS as well as the antioxidative defense machinery are briefly updated. The latest findings on differential regulation of antioxidants at multiple levels under adverse environment are also discussed here.
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Affiliation(s)
- Xiulan Xie
- School of Life Sciences, Sichuan Agricultural University, Ya'an 625014, China
| | - Zhouqing He
- School of Life Sciences, Sichuan Agricultural University, Ya'an 625014, China
| | - Nifan Chen
- School of Life Sciences, Sichuan Agricultural University, Ya'an 625014, China
| | - Zizhong Tang
- School of Life Sciences, Sichuan Agricultural University, Ya'an 625014, China
| | - Qiang Wang
- Institute of Ecological Agriculture, Sichuan Agricultural University, Chengdu 611130, China
| | - Yi Cai
- School of Life Sciences, Sichuan Agricultural University, Ya'an 625014, China
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Wang Y, Wu Q, Liu L, Li X, Lin A, Li C. MoMCP1, a Cytochrome P450 Gene, Is Required for Alleviating Manganese Toxin Revealed by Transcriptomics Analysis in Magnaporthe oryzae. Int J Mol Sci 2019; 20:ijms20071590. [PMID: 30934953 PMCID: PMC6480321 DOI: 10.3390/ijms20071590] [Citation(s) in RCA: 2] [Impact Index Per Article: 0.4] [Reference Citation Analysis] [Abstract] [Key Words] [MESH Headings] [Track Full Text] [Download PDF] [Figures] [Journal Information] [Subscribe] [Scholar Register] [Received: 02/24/2019] [Revised: 03/20/2019] [Accepted: 03/25/2019] [Indexed: 11/24/2022] Open
Abstract
Manganese, as an essential trace element, participates in many physiological reactions by regulating Mn associated enzymes. Magnaporthe oryzae is a serious pathogen and causes destructive losses for rice production. We identified a cytochrome P450 gene, MoMCP1, involving the alleviation of manganese toxin and pathogenicity. To identify the underlying mechanisms, transcriptomics were performed. The results indicated that many pathogenicity related genes were regulated, especially hydrophobin related genes in ∆Momcp1. Furthermore, the Mn2+ toxicity decreased the expressions of genes involved in the oxidative phosphorylation and energy production, and increased the reactive oxygen species (ROS) levels, which might impair the functions of mitochondrion and vacuole, compromising the pathogenicity and development in ∆Momcp1. Additionally, our results provided further information about Mn associated the gene network for Mn metabolism in cells.
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Affiliation(s)
- Yi Wang
- State Key Laboratory for Conservation and Utilization of Bio-Resources in Yunnan, Yunnan Agricultural University, Kunming 650201, China.
| | - Qi Wu
- State Key Laboratory for Conservation and Utilization of Bio-Resources in Yunnan, Yunnan Agricultural University, Kunming 650201, China.
- College of Science, Yunnan Agricultural University, Kunming 650201, China.
| | - Lina Liu
- State Key Laboratory for Conservation and Utilization of Bio-Resources in Yunnan, Yunnan Agricultural University, Kunming 650201, China.
- Agricultural Environment and Resources Institute, Yunnan Academy of Agricultural Sciences, Kunming 650205, China.
| | - Xiaoling Li
- State Key Laboratory for Conservation and Utilization of Bio-Resources in Yunnan, Yunnan Agricultural University, Kunming 650201, China.
- Kunming Edible Fungi Institute of All China Federation of Supply and Marketing Cooperatives, Kunming 650223, China.
| | - Aijia Lin
- State Key Laboratory for Conservation and Utilization of Bio-Resources in Yunnan, Yunnan Agricultural University, Kunming 650201, China.
| | - Chengyun Li
- State Key Laboratory for Conservation and Utilization of Bio-Resources in Yunnan, Yunnan Agricultural University, Kunming 650201, China.
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Kou Y, Qiu J, Tao Z. Every Coin Has Two Sides: Reactive Oxygen Species during Rice⁻ Magnaporthe oryzae Interaction. Int J Mol Sci 2019; 20:ijms20051191. [PMID: 30857220 PMCID: PMC6429160 DOI: 10.3390/ijms20051191] [Citation(s) in RCA: 20] [Impact Index Per Article: 4.0] [Reference Citation Analysis] [Abstract] [Key Words] [MESH Headings] [Track Full Text] [Download PDF] [Figures] [Journal Information] [Subscribe] [Scholar Register] [Received: 01/20/2019] [Revised: 02/19/2019] [Accepted: 03/01/2019] [Indexed: 12/22/2022] Open
Abstract
Reactive oxygen species (ROS) are involved in many important processes, including the growth, development, and responses to the environments, in rice (Oryza sativa) and Magnaporthe oryzae. Although ROS are known to be critical components in rice⁻M. oryzae interactions, their regulations and pathways have not yet been completely revealed. Recent studies have provided fascinating insights into the intricate physiological redox balance in rice⁻M. oryzae interactions. In M. oryzae, ROS accumulation is required for the appressorium formation and penetration. However, once inside the rice cells, M. oryzae must scavenge the host-derived ROS to spread invasive hyphae. On the other side, ROS play key roles in rice against M. oryzae. It has been known that, upon perception of M. oryzae, rice plants modulate their activities of ROS generating and scavenging enzymes, mainly on NADPH oxidase OsRbohB, by different signaling pathways to accumulate ROS against rice blast. By contrast, the M. oryzae virulent strains are capable of suppressing ROS accumulation and attenuating rice blast resistance by the secretion of effectors, such as AvrPii and AvrPiz-t. These results suggest that ROS generation and scavenging of ROS are tightly controlled by different pathways in both M. oryzae and rice during rice blast. In this review, the most recent advances in the understanding of the regulatory mechanisms of ROS accumulation and signaling during rice⁻M. oryzae interaction are summarized.
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Affiliation(s)
- Yanjun Kou
- State Key Lab of Rice Biology, China National Rice Research Institute, Hangzhou 311400, China.
| | - Jiehua Qiu
- State Key Lab of Rice Biology, China National Rice Research Institute, Hangzhou 311400, China.
| | - Zeng Tao
- College of Agriculture and Biotechnology, Zhejiang University, Hangzhou 310058, China.
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