1
|
Liu L, Li X, Su M, Shi J, Zhang Q, Liu X. LeGRXS14 Reduces Salt Stress Tolerance in Arabidopsis thaliana. PLANTS (BASEL, SWITZERLAND) 2023; 12:2320. [PMID: 37375946 PMCID: PMC10305512 DOI: 10.3390/plants12122320] [Citation(s) in RCA: 0] [Impact Index Per Article: 0] [Reference Citation Analysis] [Abstract] [Key Words] [Grants] [Track Full Text] [Subscribe] [Scholar Register] [Received: 04/06/2023] [Revised: 06/01/2023] [Accepted: 06/08/2023] [Indexed: 06/29/2023]
Abstract
Salt stress represents a significant abiotic stressor for plants and poses a severe threat to agricultural productivity. Glutaredoxins (GRXs) are small disulfide reductases that can scavenge cellular reactive oxygen species and are crucial for plant growth and development, particularly under stressful circumstances. Although CGFS-type GRXs were found to be involved in various abiotic stresses, the intrinsic mechanism mediated by LeGRXS14, a tomato (Lycopersicon esculentum Mill.) CGFS-type GRX, is not yet fully understood. We discovered that LeGRXS14 is relatively conserved at the N-terminus and exhibits an increase in expression level under salt and osmotic stress conditions in tomatoes. The expression levels of LeGRXS14 in response to osmotic stress peaked relatively rapidly at 30 min, while the response to salt stress only peaked at 6 h. We constructed LeGRXS14 overexpression Arabidopsis thaliana (OE) lines and confirmed that LeGRXS14 is located on the plasma membrane, nucleus, and chloroplasts. In comparison to the wild-type Col-0 (WT), the OE lines displayed greater sensitivity to salt stress, resulting in a profound inhibition of root growth under the same conditions. Analysis of the mRNA levels of the WT and OE lines revealed that salt stress-related factors, such as ZAT12, SOS3, and NHX6, were downregulated. Based on our research, it can be concluded that LeGRXS14 plays a significant role in plant tolerance to salt. However, our findings also suggest that LeGRXS14 may act as a negative regulator in this process by exacerbating Na+ toxicity and the resulting oxidative stress.
Collapse
Affiliation(s)
- Lulu Liu
- College of Life Sciences and Oceanography, Shenzhen University, Shenzhen 518060, China;
| | - Xiaofei Li
- College of Life and Environmental Sciences, Hangzhou Normal University, Hangzhou 310030, China; (X.L.); (M.S.); (J.S.); (Q.Z.)
| | - Mengke Su
- College of Life and Environmental Sciences, Hangzhou Normal University, Hangzhou 310030, China; (X.L.); (M.S.); (J.S.); (Q.Z.)
| | - Jiaping Shi
- College of Life and Environmental Sciences, Hangzhou Normal University, Hangzhou 310030, China; (X.L.); (M.S.); (J.S.); (Q.Z.)
| | - Qing Zhang
- College of Life and Environmental Sciences, Hangzhou Normal University, Hangzhou 310030, China; (X.L.); (M.S.); (J.S.); (Q.Z.)
| | - Xunyan Liu
- College of Life and Environmental Sciences, Hangzhou Normal University, Hangzhou 310030, China; (X.L.); (M.S.); (J.S.); (Q.Z.)
| |
Collapse
|
2
|
He R, Li Y, Bernards MA, Wang A. Manipulation of the Cellular Membrane-Cytoskeleton Network for RNA Virus Replication and Movement in Plants. Viruses 2023; 15:744. [PMID: 36992453 PMCID: PMC10056259 DOI: 10.3390/v15030744] [Citation(s) in RCA: 0] [Impact Index Per Article: 0] [Reference Citation Analysis] [Abstract] [Key Words] [MESH Headings] [Track Full Text] [Journal Information] [Subscribe] [Scholar Register] [Received: 02/01/2023] [Revised: 03/10/2023] [Accepted: 03/11/2023] [Indexed: 03/15/2023] Open
Abstract
Viruses infect all cellular life forms and cause various diseases and significant economic losses worldwide. The majority of viruses are positive-sense RNA viruses. A common feature of infection by diverse RNA viruses is to induce the formation of altered membrane structures in infected host cells. Indeed, upon entry into host cells, plant-infecting RNA viruses target preferred organelles of the cellular endomembrane system and remodel organellar membranes to form organelle-like structures for virus genome replication, termed as the viral replication organelle (VRO) or the viral replication complex (VRC). Different viruses may recruit different host factors for membrane modifications. These membrane-enclosed virus-induced replication factories provide an optimum, protective microenvironment to concentrate viral and host components for robust viral replication. Although different viruses prefer specific organelles to build VROs, at least some of them have the ability to exploit alternative organellar membranes for replication. Besides being responsible for viral replication, VROs of some viruses can be mobile to reach plasmodesmata (PD) via the endomembrane system, as well as the cytoskeleton machinery. Viral movement protein (MP) and/or MP-associated viral movement complexes also exploit the endomembrane-cytoskeleton network for trafficking to PD where progeny viruses pass through the cell-wall barrier to enter neighboring cells.
Collapse
Affiliation(s)
- Rongrong He
- London Research and Development Centre, Agriculture and Agri-Food Canada, 1391 Sandford St., London, ON N5V 4T3, Canada
- Department of Biology, University of Western Ontario, 1151 Richmond St. N., London, ON N6A 5B7, Canada
| | - Yinzi Li
- London Research and Development Centre, Agriculture and Agri-Food Canada, 1391 Sandford St., London, ON N5V 4T3, Canada
| | - Mark A. Bernards
- Department of Biology, University of Western Ontario, 1151 Richmond St. N., London, ON N6A 5B7, Canada
| | - Aiming Wang
- London Research and Development Centre, Agriculture and Agri-Food Canada, 1391 Sandford St., London, ON N5V 4T3, Canada
- Department of Biology, University of Western Ontario, 1151 Richmond St. N., London, ON N6A 5B7, Canada
| |
Collapse
|
3
|
Li Y, Zhu L, Gao J, Ma H, Li C, Song Y, Zhu X, Zhu C. Silencing suppressors of rice black-streaked dwarf virus and rice stripe virus hijack the 26S proteasome of Laodelphax striatellus to facilitate virus accumulation and transmission. PEST MANAGEMENT SCIENCE 2022; 78:2940-2951. [PMID: 35439336 DOI: 10.1002/ps.6918] [Citation(s) in RCA: 2] [Impact Index Per Article: 1.0] [Reference Citation Analysis] [Abstract] [Key Words] [MESH Headings] [Track Full Text] [Subscribe] [Scholar Register] [Received: 12/24/2021] [Revised: 03/14/2022] [Accepted: 04/19/2022] [Indexed: 06/14/2023]
Abstract
BACKGROUND Rice black-streaked dwarf virus (RBSDV) is transmitted by small brown planthopper (Laodelphax striatellus [L. striatellus]) and causes devastating disease in rice. P9-1 has silencing suppression activity and is the key protein for viroplasm formation in RBSDV-infected plants and insects; however, its exact function is poorly understood. RESULTS In this study, the P9-1 of RBSDV interacted with L. striatellus 26S proteasome subunit RPN8. RBSDV accumulation in L. striatellus increased after the 26S proteasome was disrupted by silencing the RPN8 expression. This finding indicated that L. striatellus 26S proteasome played a defense role against RBSDV infection by regulating RBSDV accumulation. Further investigations revealed that P9-1 could competitively bind to RPN8 with RPN7, thereby disrupting the assembly of 26S proteasome in L. striatellus and promoting the infection of RBSDV in insect vectors, and further affecting the transmission of the virus to rice by insect vectors. Similar to P9-1, rice stripe virus (RSV) NS2, a weak silencing suppressor, regulated virus accumulation and transmission by hijacking RPN8 to interfere with the function of 26S proteasome in L. striatellus. CONCLUSION These results suggest that viruses promote their own infection via interfering with ubiquitination pathway of insect vectors, and this mechanism might be of universal importance. These findings provide a new insight into the mechanism of virus transmission in insect vectors. © 2022 Society of Chemical Industry.
Collapse
Affiliation(s)
- Ying Li
- State Key Laboratory of Crop Biology, College of Life Sciences, Shandong Agricultural University, Taian, P. R. China
| | - Lifei Zhu
- State Key Laboratory of Crop Biology, College of Life Sciences, Shandong Agricultural University, Taian, P. R. China
| | - Jiaqi Gao
- State Key Laboratory of Crop Biology, College of Life Sciences, Shandong Agricultural University, Taian, P. R. China
| | - Haoran Ma
- State Key Laboratory of Crop Biology, College of Life Sciences, Shandong Agricultural University, Taian, P. R. China
| | - Changyuan Li
- State Key Laboratory of Crop Biology, College of Life Sciences, Shandong Agricultural University, Taian, P. R. China
| | - Yunzhi Song
- State Key Laboratory of Crop Biology, College of Life Sciences, Shandong Agricultural University, Taian, P. R. China
| | - Xiaoping Zhu
- College of Plant Protection, Shandong Agricultural University, Taian, P. R. China
| | - Changxiang Zhu
- State Key Laboratory of Crop Biology, College of Life Sciences, Shandong Agricultural University, Taian, P. R. China
| |
Collapse
|
4
|
Iswanto ABB, Shelake RM, Vu MH, Kim JY, Kim SH. Genome Editing for Plasmodesmal Biology. FRONTIERS IN PLANT SCIENCE 2021; 12:679140. [PMID: 34149780 PMCID: PMC8207191 DOI: 10.3389/fpls.2021.679140] [Citation(s) in RCA: 0] [Impact Index Per Article: 0] [Reference Citation Analysis] [Abstract] [Key Words] [Track Full Text] [Subscribe] [Scholar Register] [Received: 03/11/2021] [Accepted: 05/10/2021] [Indexed: 05/08/2023]
Abstract
Plasmodesmata (PD) are cytoplasmic canals that facilitate intercellular communication and molecular exchange between adjacent plant cells. PD-associated proteins are considered as one of the foremost factors in regulating PD function that is critical for plant development and stress responses. Although its potential to be used for crop engineering is enormous, our understanding of PD biology was relatively limited to model plants, demanding further studies in crop systems. Recently developed genome editing techniques such as Clustered Regularly Interspaced Short Palindromic Repeats/CRISPR associate protein (CRISPR/Cas) might confer powerful approaches to dissect the molecular function of PD components and to engineer elite crops. Here, we assess several aspects of PD functioning to underline and highlight the potential applications of CRISPR/Cas that provide new insight into PD biology and crop improvement.
Collapse
Affiliation(s)
- Arya Bagus Boedi Iswanto
- Division of Applied Life Sciences (BK21 Four Program), Plant Molecular Biology and Biotechnology Research Center, Gyeongsang National University, Jinju, South Korea
| | - Rahul Mahadev Shelake
- Division of Applied Life Sciences (BK21 Four Program), Plant Molecular Biology and Biotechnology Research Center, Gyeongsang National University, Jinju, South Korea
| | - Minh Huy Vu
- Division of Applied Life Sciences (BK21 Four Program), Plant Molecular Biology and Biotechnology Research Center, Gyeongsang National University, Jinju, South Korea
| | - Jae-Yean Kim
- Division of Applied Life Sciences (BK21 Four Program), Plant Molecular Biology and Biotechnology Research Center, Gyeongsang National University, Jinju, South Korea
- Division of Applied Life Sciences, Gyeongsang National University, Jinju, South Korea
- Jae-Yean Kim,
| | - Sang Hee Kim
- Division of Applied Life Sciences (BK21 Four Program), Plant Molecular Biology and Biotechnology Research Center, Gyeongsang National University, Jinju, South Korea
- Division of Applied Life Sciences, Gyeongsang National University, Jinju, South Korea
- *Correspondence: Sang Hee Kim,
| |
Collapse
|
5
|
Liu Q, Deng S, Liu B, Tao Y, Ai H, Liu J, Zhang Y, Zhao Y, Xu M. A helitron-induced RabGDIα variant causes quantitative recessive resistance to maize rough dwarf disease. Nat Commun 2020; 11:495. [PMID: 31980630 PMCID: PMC6981192 DOI: 10.1038/s41467-020-14372-3] [Citation(s) in RCA: 41] [Impact Index Per Article: 10.3] [Reference Citation Analysis] [Abstract] [Track Full Text] [Download PDF] [Figures] [Journal Information] [Subscribe] [Scholar Register] [Received: 09/25/2018] [Accepted: 01/01/2020] [Indexed: 12/15/2022] Open
Abstract
Maize rough dwarf disease (MRDD), caused by various species of the genus Fijivirus, threatens maize production worldwide. We previously identified a quantitative locus qMrdd1 conferring recessive resistance to one causal species, rice black-streaked dwarf virus (RBSDV). Here, we show that Rab GDP dissociation inhibitor alpha (RabGDIα) is the host susceptibility factor for RBSDV. The viral P7-1 protein binds tightly to the exon-10 and C-terminal regions of RabGDIα to recruit it for viral infection. Insertion of a helitron transposon into RabGDIα intron 10 creates alternative splicing to replace the wild-type exon 10 with a helitron-derived exon 10. The resultant splicing variant RabGDIα-hel has difficulty being recruited by P7-1, thus leading to quantitative recessive resistance to MRDD. All naturally occurring resistance alleles may have arisen from a recent single helitron insertion event. These resistance alleles are valuable to improve maize resistance to MRDD and potentially to engineer RBSDV resistance in other crops. Maize rough dwarf disease threatens its production. Here, the authors show that a helitron transposon insertion in the Rab GDP dissociation inhibitor alpha leads to recessive viral resistance by affecting its interaction with viral P7-1 protein and that all naturally occurring alleles come from a single mutation event after domestication.
Collapse
Affiliation(s)
- Qingcai Liu
- State Key Laboratory of Plant Physiology and Biochemistry/College of Agronomy and Biotechnology/National Maize Improvement Center/Center for Crop Functional Genomics and Molecular Breeding, China Agricultural University, 2 West Yuanmingyuan Road, Beijing, 100193, P. R. China
| | - Suining Deng
- State Key Laboratory of Plant Physiology and Biochemistry/College of Agronomy and Biotechnology/National Maize Improvement Center/Center for Crop Functional Genomics and Molecular Breeding, China Agricultural University, 2 West Yuanmingyuan Road, Beijing, 100193, P. R. China
| | - Baoshen Liu
- College of Agronomy/State Key Laboratory of Crop Biology, Shandong Agricultural University, Taian, 271018, P. R. China
| | - Yongfu Tao
- State Key Laboratory of Plant Physiology and Biochemistry/College of Agronomy and Biotechnology/National Maize Improvement Center/Center for Crop Functional Genomics and Molecular Breeding, China Agricultural University, 2 West Yuanmingyuan Road, Beijing, 100193, P. R. China
| | - Haiyue Ai
- State Key Laboratory of Plant Physiology and Biochemistry/College of Agronomy and Biotechnology/National Maize Improvement Center/Center for Crop Functional Genomics and Molecular Breeding, China Agricultural University, 2 West Yuanmingyuan Road, Beijing, 100193, P. R. China
| | - Jianju Liu
- State Key Laboratory of Plant Physiology and Biochemistry/College of Agronomy and Biotechnology/National Maize Improvement Center/Center for Crop Functional Genomics and Molecular Breeding, China Agricultural University, 2 West Yuanmingyuan Road, Beijing, 100193, P. R. China
| | - Yongzhong Zhang
- College of Agronomy/State Key Laboratory of Crop Biology, Shandong Agricultural University, Taian, 271018, P. R. China
| | - Yan Zhao
- College of Agronomy/State Key Laboratory of Crop Biology, Shandong Agricultural University, Taian, 271018, P. R. China
| | - Mingliang Xu
- State Key Laboratory of Plant Physiology and Biochemistry/College of Agronomy and Biotechnology/National Maize Improvement Center/Center for Crop Functional Genomics and Molecular Breeding, China Agricultural University, 2 West Yuanmingyuan Road, Beijing, 100193, P. R. China.
| |
Collapse
|
6
|
He L, Chen X, Yang J, Zhang T, Li J, Zhang S, Zhong K, Zhang H, Chen J, Yang J. Rice black-streaked dwarf virus-encoded P5-1 regulates the ubiquitination activity of SCF E3 ligases and inhibits jasmonate signaling to benefit its infection in rice. THE NEW PHYTOLOGIST 2020; 225:896-912. [PMID: 31318448 PMCID: PMC6972624 DOI: 10.1111/nph.16066] [Citation(s) in RCA: 36] [Impact Index Per Article: 9.0] [Reference Citation Analysis] [Abstract] [Key Words] [MESH Headings] [Grants] [Track Full Text] [Subscribe] [Scholar Register] [Received: 03/19/2019] [Accepted: 07/09/2019] [Indexed: 05/29/2023]
Abstract
SCF (Skp1/Cullin1/F-box) complexes are key regulators of many cellular processes. Viruses encode specific factors to interfere with or hijack these complexes and ensure their infection in plants. The molecular mechanisms controlling this interference/hijack are currently largely unknown. Here, we present evidence of a novel strategy used by Rice black-streaked dwarf virus (RBSDV) to regulate ubiquitination in rice (Oryza sativa) by interfering in the activity of OsCSN5A. We also show that RBSDV P5-1 specifically affects CSN-mediated deRUBylation of OsCUL1, compromising the integrity of the SCFCOI1 complex. We demonstrate that the expressions of jasmonate (JA) biosynthesis-associated genes are not inhibited, whereas the expressions of JA-responsive genes are down-regulated in transgenic P5-1 plants. More importantly, application of JA to P5-1 transgenic plants did not reduce their susceptibility to RBSDV infection. Our results suggest that P5-1 inhibits the ubiquitination activity of SCF E3 ligases through an interaction with OsCSN5A, and hinders the RUBylation/deRUBylation of CUL1, leading to an inhibition of the JA response pathway and an enhancement of RBSDV infection in rice.
Collapse
Affiliation(s)
- Long He
- State Key Laboratory for Quality and Safety of Agro‐productsInstitute of Plant VirologyNingbo UniversityNingbo315000China
- State Key Laboratory Breeding Base for Zhejiang Sustainable Pest and Disease Control, Zhejiang Provincial Key Laboratory of Plant VirologyInstitute of Virology and Biotechnology, Zhejiang Academy of Agricultural SciencesHangzhou310021China
- College of Plant ProtectionNanjing Agricultural UniversityNanjing21000China
| | - Xuan Chen
- State Key Laboratory for Quality and Safety of Agro‐productsInstitute of Plant VirologyNingbo UniversityNingbo315000China
| | - Jin Yang
- State Key Laboratory for Quality and Safety of Agro‐productsInstitute of Plant VirologyNingbo UniversityNingbo315000China
- College of Plant ProtectionHunan Agricultural UniversityChangsha410000China
| | - Tianye Zhang
- State Key Laboratory for Quality and Safety of Agro‐productsInstitute of Plant VirologyNingbo UniversityNingbo315000China
- College of Forestry and BiotechnologyZhejiang A&F UniversityLinan311300China
| | - Juan Li
- State Key Laboratory for Quality and Safety of Agro‐productsInstitute of Plant VirologyNingbo UniversityNingbo315000China
- College of Agriculture and BiotechnologyZhejiang UniversityHangzhou310058China
| | - Songbai Zhang
- Institute of Plant ProtectionHunan Academy of Agricultural SciencesChangsha410000China
| | - Kaili Zhong
- State Key Laboratory for Quality and Safety of Agro‐productsInstitute of Plant VirologyNingbo UniversityNingbo315000China
| | - Hengmu Zhang
- State Key Laboratory Breeding Base for Zhejiang Sustainable Pest and Disease Control, Zhejiang Provincial Key Laboratory of Plant VirologyInstitute of Virology and Biotechnology, Zhejiang Academy of Agricultural SciencesHangzhou310021China
| | - Jianping Chen
- State Key Laboratory for Quality and Safety of Agro‐productsInstitute of Plant VirologyNingbo UniversityNingbo315000China
| | - Jian Yang
- State Key Laboratory for Quality and Safety of Agro‐productsInstitute of Plant VirologyNingbo UniversityNingbo315000China
| |
Collapse
|
7
|
Zhang H, He Y, Tan X, Xie K, Li L, Hong G, Li J, Cheng Y, Yan F, Chen J, Sun Z. The Dual Effect of the Brassinosteroid Pathway on Rice Black-Streaked Dwarf Virus Infection by Modulating the Peroxidase-Mediated Oxidative Burst and Plant Defense. MOLECULAR PLANT-MICROBE INTERACTIONS : MPMI 2019; 32:685-696. [PMID: 30540528 DOI: 10.1094/mpmi-10-18-0285-r] [Citation(s) in RCA: 16] [Impact Index Per Article: 3.2] [Reference Citation Analysis] [Abstract] [MESH Headings] [Track Full Text] [Subscribe] [Scholar Register] [Indexed: 05/12/2023]
Abstract
The phytohormone brassinosteroid (BR) not only plays key roles in regulating plant growth and development but is also involved in modulating the plant defense system in response to pathogens. We previously found that BR application made rice plants more susceptible to the devastating pathogen rice black-streaked dwarf virus (RBSDV), but the mechanism of BR-mediated susceptibility remains unclear. We now show that both BR-deficient and -insensitive mutants are resistant to RBSDV infection. High-throughput sequencing showed that the defense hormone salicylic acid and jasmonic acid pathways were activated in the RBSDV-infected BR mutant. Meanwhile, a number of class III peroxidases (OsPrx) were significantly changed and basal reactive oxygen species (ROS) accumulated in BR mutants. Treatment with exogenous hormones and other chemicals demonstrated that the BR pathway could suppress the levels of OsPrx and the ROS burst by directly binding the promoters of OsPrx genes. Together, our findings indicate that BR-mediated susceptibility is at least partly caused by inhibition of the action of defense hormones, preventing the accumulation of the peroxidase-mediated oxidative burst.
Collapse
Affiliation(s)
- Hehong Zhang
- 1 College of Plant Protection, Nanjing Agricultural University, Nanjing, China
- 2 Institute of Plant Virology, Ningbo University, Ningbo, China; and
- 3 The State Key Laboratory Breeding Base for Sustainable Control of Pest and Disease, China and Key Laboratory of Biotechnology in Plant Protection of MOA of China and Zhejiang Province, Institute of Virology and Biotechnology, Zhejiang Academy of Agricultural Sciences, Hangzhou 310021, China
| | - Yuqing He
- 3 The State Key Laboratory Breeding Base for Sustainable Control of Pest and Disease, China and Key Laboratory of Biotechnology in Plant Protection of MOA of China and Zhejiang Province, Institute of Virology and Biotechnology, Zhejiang Academy of Agricultural Sciences, Hangzhou 310021, China
| | - Xiaoxiang Tan
- 2 Institute of Plant Virology, Ningbo University, Ningbo, China; and
- 3 The State Key Laboratory Breeding Base for Sustainable Control of Pest and Disease, China and Key Laboratory of Biotechnology in Plant Protection of MOA of China and Zhejiang Province, Institute of Virology and Biotechnology, Zhejiang Academy of Agricultural Sciences, Hangzhou 310021, China
| | - Kaili Xie
- 1 College of Plant Protection, Nanjing Agricultural University, Nanjing, China
- 2 Institute of Plant Virology, Ningbo University, Ningbo, China; and
| | - Lulu Li
- 1 College of Plant Protection, Nanjing Agricultural University, Nanjing, China
- 3 The State Key Laboratory Breeding Base for Sustainable Control of Pest and Disease, China and Key Laboratory of Biotechnology in Plant Protection of MOA of China and Zhejiang Province, Institute of Virology and Biotechnology, Zhejiang Academy of Agricultural Sciences, Hangzhou 310021, China
| | - Gaojie Hong
- 3 The State Key Laboratory Breeding Base for Sustainable Control of Pest and Disease, China and Key Laboratory of Biotechnology in Plant Protection of MOA of China and Zhejiang Province, Institute of Virology and Biotechnology, Zhejiang Academy of Agricultural Sciences, Hangzhou 310021, China
| | - Junmin Li
- 2 Institute of Plant Virology, Ningbo University, Ningbo, China; and
| | - Ye Cheng
- 2 Institute of Plant Virology, Ningbo University, Ningbo, China; and
| | - Fei Yan
- 2 Institute of Plant Virology, Ningbo University, Ningbo, China; and
| | - Jianping Chen
- 1 College of Plant Protection, Nanjing Agricultural University, Nanjing, China
- 2 Institute of Plant Virology, Ningbo University, Ningbo, China; and
- 3 The State Key Laboratory Breeding Base for Sustainable Control of Pest and Disease, China and Key Laboratory of Biotechnology in Plant Protection of MOA of China and Zhejiang Province, Institute of Virology and Biotechnology, Zhejiang Academy of Agricultural Sciences, Hangzhou 310021, China
| | - Zongtao Sun
- 1 College of Plant Protection, Nanjing Agricultural University, Nanjing, China
- 2 Institute of Plant Virology, Ningbo University, Ningbo, China; and
- 3 The State Key Laboratory Breeding Base for Sustainable Control of Pest and Disease, China and Key Laboratory of Biotechnology in Plant Protection of MOA of China and Zhejiang Province, Institute of Virology and Biotechnology, Zhejiang Academy of Agricultural Sciences, Hangzhou 310021, China
| |
Collapse
|
8
|
Zhang H, Tan X, He Y, Xie K, Li L, Wang R, Hong G, Li J, Li J, Taliansky M, MacFarlane S, Yan F, Chen J, Sun Z. Rice black-streaked dwarf virus P10 acts as either a synergistic or antagonistic determinant during superinfection with related or unrelated virus. MOLECULAR PLANT PATHOLOGY 2019; 20:641-655. [PMID: 30623552 PMCID: PMC6637905 DOI: 10.1111/mpp.12782] [Citation(s) in RCA: 11] [Impact Index Per Article: 2.2] [Reference Citation Analysis] [Abstract] [Key Words] [MESH Headings] [Track Full Text] [Subscribe] [Scholar Register] [Indexed: 05/10/2023]
Abstract
Rice black-streaked dwarf virus (RBSDV), a member of the genus Fijivirus, is a devastating pathogen of crop plants. RBSDV S10 encodes a capsid protein (P10) that is an important component of the double-layered particle. However, little information is available on the roles of RBSDV P10 in viral infection or in interactions with other viruses. Here, we demonstrate that the expression of P10 in plants alleviates the symptoms of both RBSDV and the closely related Southern rice black-streaked dwarf virus (SRBSDV), and reduces the disease incidence, but renders the plants more susceptible to the unrelated Rice stripe virus (RSV). Further experiments suggest that P10-mediated resistance to RBSDV and SRBSDV operates at the protein level, rather than the RNA level, and is not a result of post-transcriptional gene silencing. Transcriptomic data reveal that the expression of P10 in plants significantly suppresses the expression of rice defence-related genes, which may play important roles in resistance to RSV infection. After infection with RBSDV, plants are more resistant to subsequent challenge by SRBSDV, but more susceptible to RSV. Overall, these results indicate that P10 acts as an important effector in virus interactions.
Collapse
Affiliation(s)
- Hehong Zhang
- Institute of Plant VirologyNingbo UniversityNingbo315211China
- College of Plant ProtectionNanjing Agricultural UniversityNanjing210095China
- The State Key Laboratory Breeding Base for Sustainable Control of Pest and Disease, Key Laboratory of Biotechnology in Plant Protection of MOA of China and Zhejiang Province, Institute of Virology and BiotechnologyZhejiang Academy of Agricultural SciencesHangzhou310021China
| | - Xiaoxiang Tan
- Institute of Plant VirologyNingbo UniversityNingbo315211China
- College of Plant ProtectionNorthwest Agriculture and Forestry UniversityYangling 712100ShaanxiChina
| | - Yuqing He
- The State Key Laboratory Breeding Base for Sustainable Control of Pest and Disease, Key Laboratory of Biotechnology in Plant Protection of MOA of China and Zhejiang Province, Institute of Virology and BiotechnologyZhejiang Academy of Agricultural SciencesHangzhou310021China
| | - Kaili Xie
- Institute of Plant VirologyNingbo UniversityNingbo315211China
- College of Plant ProtectionNanjing Agricultural UniversityNanjing210095China
- The State Key Laboratory Breeding Base for Sustainable Control of Pest and Disease, Key Laboratory of Biotechnology in Plant Protection of MOA of China and Zhejiang Province, Institute of Virology and BiotechnologyZhejiang Academy of Agricultural SciencesHangzhou310021China
| | - Lulu Li
- The State Key Laboratory Breeding Base for Sustainable Control of Pest and Disease, Key Laboratory of Biotechnology in Plant Protection of MOA of China and Zhejiang Province, Institute of Virology and BiotechnologyZhejiang Academy of Agricultural SciencesHangzhou310021China
| | - Rong Wang
- Institute of Plant VirologyNingbo UniversityNingbo315211China
- College of Plant ProtectionNanjing Agricultural UniversityNanjing210095China
| | - Gaojie Hong
- The State Key Laboratory Breeding Base for Sustainable Control of Pest and Disease, Key Laboratory of Biotechnology in Plant Protection of MOA of China and Zhejiang Province, Institute of Virology and BiotechnologyZhejiang Academy of Agricultural SciencesHangzhou310021China
| | - Junmin Li
- Institute of Plant VirologyNingbo UniversityNingbo315211China
| | - Jing Li
- The State Key Laboratory Breeding Base for Sustainable Control of Pest and Disease, Key Laboratory of Biotechnology in Plant Protection of MOA of China and Zhejiang Province, Institute of Virology and BiotechnologyZhejiang Academy of Agricultural SciencesHangzhou310021China
| | - Michael Taliansky
- The James Hutton Institute, Cell and Molecular Sciences GroupInvergowrieDundeeDD2 5DAUK
| | - Stuart MacFarlane
- The James Hutton Institute, Cell and Molecular Sciences GroupInvergowrieDundeeDD2 5DAUK
| | - Fei Yan
- Institute of Plant VirologyNingbo UniversityNingbo315211China
| | - Jianping Chen
- Institute of Plant VirologyNingbo UniversityNingbo315211China
- College of Plant ProtectionNanjing Agricultural UniversityNanjing210095China
- The State Key Laboratory Breeding Base for Sustainable Control of Pest and Disease, Key Laboratory of Biotechnology in Plant Protection of MOA of China and Zhejiang Province, Institute of Virology and BiotechnologyZhejiang Academy of Agricultural SciencesHangzhou310021China
| | - Zongtao Sun
- Institute of Plant VirologyNingbo UniversityNingbo315211China
- College of Plant ProtectionNanjing Agricultural UniversityNanjing210095China
- The State Key Laboratory Breeding Base for Sustainable Control of Pest and Disease, Key Laboratory of Biotechnology in Plant Protection of MOA of China and Zhejiang Province, Institute of Virology and BiotechnologyZhejiang Academy of Agricultural SciencesHangzhou310021China
| |
Collapse
|
9
|
Xie K, Li L, Zhang H, Wang R, Tan X, He Y, Hong G, Li J, Ming F, Yao X, Yan F, Sun Z, Chen J. Abscisic acid negatively modulates plant defence against rice black-streaked dwarf virus infection by suppressing the jasmonate pathway and regulating reactive oxygen species levels in rice. PLANT, CELL & ENVIRONMENT 2018; 41:2504-2514. [PMID: 29920686 DOI: 10.1111/pce.13372] [Citation(s) in RCA: 48] [Impact Index Per Article: 8.0] [Reference Citation Analysis] [Abstract] [Key Words] [MESH Headings] [Track Full Text] [Subscribe] [Scholar Register] [Received: 01/18/2018] [Accepted: 06/12/2018] [Indexed: 05/20/2023]
Abstract
Abscisic acid (ABA) plays a multifaceted role in plant immunity and can either increase resistance or increase susceptibility to some bacterial and fungal pathogens depending on the pathosystem. ABA is also known to mediate plant defence to some viruses. In this study, the relationship between the ABA pathway and rice black-streaked dwarf virus (RBSDV) was investigated in rice. The expression of ABA pathway genes was significantly reduced upon RBSDV infection. Application of exogenous hormones and various ABA pathway mutants revealed that the ABA pathway plays a negative role in rice defence against RBSDV. Exogenous hormone treatment and virus inoculation showed that ABA inhibits the jasmonate-mediated resistance to RBSDV. ABA treatment also suppressed accumulation of reactive oxygen species by inducing the expression of superoxidase dismutases and catalases. Thus, ABA modulates the rice-RBSDV interaction by suppressing the jasmonate pathway and regulating reactive oxygen species levels. This is the first example of ABA increasing susceptibility to a plant virus.
Collapse
Affiliation(s)
- Kaili Xie
- College of Plant Protection, Nanjing Agricultural University, Nanjing, China
- Institute of Plant Virology, Ningbo University, Ningbo, China
- Ministry of Agriculture Key Laboratory of Biotechnology in Plant Protection, Zhejiang Provincial Key laboratory of Plant Protection, Institute of Virology and Biotechnology, Zhejiang Academy of Agricultural Sciences, Hangzhou, China
| | - Lulu Li
- Ministry of Agriculture Key Laboratory of Biotechnology in Plant Protection, Zhejiang Provincial Key laboratory of Plant Protection, Institute of Virology and Biotechnology, Zhejiang Academy of Agricultural Sciences, Hangzhou, China
- College of Plant Protection, Anhui Agricultural University, Hefei, China
| | - Hehong Zhang
- College of Plant Protection, Nanjing Agricultural University, Nanjing, China
- Ministry of Agriculture Key Laboratory of Biotechnology in Plant Protection, Zhejiang Provincial Key laboratory of Plant Protection, Institute of Virology and Biotechnology, Zhejiang Academy of Agricultural Sciences, Hangzhou, China
| | - Rong Wang
- College of Plant Protection, Nanjing Agricultural University, Nanjing, China
- Ministry of Agriculture Key Laboratory of Biotechnology in Plant Protection, Zhejiang Provincial Key laboratory of Plant Protection, Institute of Virology and Biotechnology, Zhejiang Academy of Agricultural Sciences, Hangzhou, China
| | - Xiaoxiang Tan
- Ministry of Agriculture Key Laboratory of Biotechnology in Plant Protection, Zhejiang Provincial Key laboratory of Plant Protection, Institute of Virology and Biotechnology, Zhejiang Academy of Agricultural Sciences, Hangzhou, China
| | - Yuqing He
- Ministry of Agriculture Key Laboratory of Biotechnology in Plant Protection, Zhejiang Provincial Key laboratory of Plant Protection, Institute of Virology and Biotechnology, Zhejiang Academy of Agricultural Sciences, Hangzhou, China
| | - Gaojie Hong
- Ministry of Agriculture Key Laboratory of Biotechnology in Plant Protection, Zhejiang Provincial Key laboratory of Plant Protection, Institute of Virology and Biotechnology, Zhejiang Academy of Agricultural Sciences, Hangzhou, China
| | - Junmin Li
- Institute of Plant Virology, Ningbo University, Ningbo, China
| | - Feng Ming
- School of Life Sciences, Fudan University, Shanghai, China
| | - Xuefeng Yao
- Institute of Botany, Chinese Academy of Sciences, Beijing, China
| | - Fei Yan
- Institute of Plant Virology, Ningbo University, Ningbo, China
| | - Zongtao Sun
- College of Plant Protection, Nanjing Agricultural University, Nanjing, China
- Institute of Plant Virology, Ningbo University, Ningbo, China
| | - Jianping Chen
- College of Plant Protection, Nanjing Agricultural University, Nanjing, China
- Institute of Plant Virology, Ningbo University, Ningbo, China
| |
Collapse
|
10
|
Sui X, Liu X, Lin W, Wu Z, Yang L. Targeting of rice grassy stunt virus pc6 protein to plasmodesmata requires the ER-to-Golgi secretory pathway and an actin-myosin VIII motility system. Arch Virol 2018; 163:1317-1323. [PMID: 29392491 DOI: 10.1007/s00705-018-3726-9] [Citation(s) in RCA: 2] [Impact Index Per Article: 0.3] [Reference Citation Analysis] [Abstract] [Key Words] [MESH Headings] [Grants] [Track Full Text] [Journal Information] [Subscribe] [Scholar Register] [Received: 08/09/2017] [Accepted: 12/10/2017] [Indexed: 10/18/2022]
Abstract
The nonstructural protein pc6 encoded by rice grassy stunt virus (RGSV) plays a significant role in viral cell-to-cell movement, presumably by transport through plasmodesmata (PD). We confirmed the association of pc6 with PD, and also elucidated the mechanisms of protein targeting to PD. Several inhibitor treatments showed conclusively that pc6 is targeted to PD via the ER-to-Golgi secretory system and actin filaments. In addition, VIII-1 myosin was also found to be involved in pc6 PD targeting. Deletion mutants demonstrated that C-terminal amino acid residues 209-229 (transmembrane domain 2; TM2) are essential for pc6 to move through PD.
Collapse
Affiliation(s)
- Xuelian Sui
- State Key Laboratory of Ecological Pest Control for Fujian and Taiwan Crops, Fujian Province Key Laboratory of Plant Virology, Institute of Plant Virology, Fujian Agriculture and Forestry University, Fuzhou, 350002, Fujian, China
| | - Xiaojuan Liu
- State Key Laboratory of Ecological Pest Control for Fujian and Taiwan Crops, Fujian Province Key Laboratory of Plant Virology, Institute of Plant Virology, Fujian Agriculture and Forestry University, Fuzhou, 350002, Fujian, China
| | - Wenwu Lin
- State Key Laboratory of Ecological Pest Control for Fujian and Taiwan Crops, Fujian Province Key Laboratory of Plant Virology, Institute of Plant Virology, Fujian Agriculture and Forestry University, Fuzhou, 350002, Fujian, China
| | - Zujian Wu
- State Key Laboratory of Ecological Pest Control for Fujian and Taiwan Crops, Fujian Province Key Laboratory of Plant Virology, Institute of Plant Virology, Fujian Agriculture and Forestry University, Fuzhou, 350002, Fujian, China.
| | - Liang Yang
- State Key Laboratory of Ecological Pest Control for Fujian and Taiwan Crops, Fujian Province Key Laboratory of Plant Virology, Institute of Plant Virology, Fujian Agriculture and Forestry University, Fuzhou, 350002, Fujian, China.
| |
Collapse
|
11
|
Ahmed MMS, Bian S, Wang M, Zhao J, Zhang B, Liu Q, Zhang C, Tang S, Gu M, Yu H. RNAi-mediated resistance to rice black-streaked dwarf virus in transgenic rice. Transgenic Res 2016; 26:197-207. [PMID: 27900537 DOI: 10.1007/s11248-016-9999-4] [Citation(s) in RCA: 7] [Impact Index Per Article: 0.9] [Reference Citation Analysis] [Abstract] [Key Words] [Track Full Text] [Journal Information] [Subscribe] [Scholar Register] [Received: 05/18/2016] [Accepted: 11/13/2016] [Indexed: 10/20/2022]
Abstract
Rice black-streaked dwarf virus (RBSDV), a member of the genus Fijivirus in the family Reoviridae, causes significant economic losses in rice production in China and many other Asian countries. Development of resistant varieties by using conventional breeding methods is limited, as germplasm with high level of resistance to RBSDV have not yet been found. One of the most promising methods to confer resistance against RBSDV is the use of RNA interference (RNAi) technology. RBSDV non-structural protein P7-2, encoded by S7-2 gene, is a potential F-box protein and involved in the plant-virus interaction through the ubiquitination pathway. P8, encoded by S8 gene, is the minor core protein that possesses potent active transcriptional repression activity. In this study, we transformed rice calli using a mini-twin T-DNA vector harboring RNAi constructs of the RBSDV genes S7-2 or S8, and obtained plants harboring the target gene constructs and the selectable marker gene, hygromycin phosphotransferase (HPT). From the offspring of these transgenic plants, we obtained selectable marker (HPT gene)-free plants. Homozygous T5 transgenic lines which harbored either S7-2-RNAi or S8-RNAi exhibited high level resistance against RBSDV under field infection pressure from indigenous viruliferous small brown planthoppers. Thus, our results showed that RNA interference with the expression of S7-2 or S8 genes seemed an effective way to induce high level resistance in rice against RBSD disease.
Collapse
Affiliation(s)
- Mohamed M S Ahmed
- Key Laboratory of Plant Functional Genomics of the Ministry of Education, Jiangsu Key Laboratory of Crop Genetics and Physiology/Co-Innovation Center for Modern Production Technology of Grain Crops, Yangzhou University, Yangzhou, 225009, China.,Department of Crop Protection, Faculty of Agriculture, University of Khartoum, 13314, Khartoum North, Sudan
| | - Shiquan Bian
- Key Laboratory of Plant Functional Genomics of the Ministry of Education, Jiangsu Key Laboratory of Crop Genetics and Physiology/Co-Innovation Center for Modern Production Technology of Grain Crops, Yangzhou University, Yangzhou, 225009, China
| | - Muyue Wang
- Key Laboratory of Plant Functional Genomics of the Ministry of Education, Jiangsu Key Laboratory of Crop Genetics and Physiology/Co-Innovation Center for Modern Production Technology of Grain Crops, Yangzhou University, Yangzhou, 225009, China
| | - Jing Zhao
- Key Laboratory of Plant Functional Genomics of the Ministry of Education, Jiangsu Key Laboratory of Crop Genetics and Physiology/Co-Innovation Center for Modern Production Technology of Grain Crops, Yangzhou University, Yangzhou, 225009, China
| | - Bingwei Zhang
- Key Laboratory of Plant Functional Genomics of the Ministry of Education, Jiangsu Key Laboratory of Crop Genetics and Physiology/Co-Innovation Center for Modern Production Technology of Grain Crops, Yangzhou University, Yangzhou, 225009, China
| | - Qiaoquan Liu
- Key Laboratory of Plant Functional Genomics of the Ministry of Education, Jiangsu Key Laboratory of Crop Genetics and Physiology/Co-Innovation Center for Modern Production Technology of Grain Crops, Yangzhou University, Yangzhou, 225009, China
| | - Changquan Zhang
- Key Laboratory of Plant Functional Genomics of the Ministry of Education, Jiangsu Key Laboratory of Crop Genetics and Physiology/Co-Innovation Center for Modern Production Technology of Grain Crops, Yangzhou University, Yangzhou, 225009, China
| | - Shuzhu Tang
- Key Laboratory of Plant Functional Genomics of the Ministry of Education, Jiangsu Key Laboratory of Crop Genetics and Physiology/Co-Innovation Center for Modern Production Technology of Grain Crops, Yangzhou University, Yangzhou, 225009, China
| | - Minghong Gu
- Key Laboratory of Plant Functional Genomics of the Ministry of Education, Jiangsu Key Laboratory of Crop Genetics and Physiology/Co-Innovation Center for Modern Production Technology of Grain Crops, Yangzhou University, Yangzhou, 225009, China
| | - Hengxiu Yu
- Key Laboratory of Plant Functional Genomics of the Ministry of Education, Jiangsu Key Laboratory of Crop Genetics and Physiology/Co-Innovation Center for Modern Production Technology of Grain Crops, Yangzhou University, Yangzhou, 225009, China.
| |
Collapse
|
12
|
Bak A, Folimonova SY. The conundrum of a unique protein encoded by citrus tristeza virus that is dispensable for infection of most hosts yet shows characteristics of a viral movement protein. Virology 2015; 485:86-95. [PMID: 26210077 DOI: 10.1016/j.virol.2015.07.005] [Citation(s) in RCA: 23] [Impact Index Per Article: 2.6] [Reference Citation Analysis] [Abstract] [Key Words] [MESH Headings] [Track Full Text] [Journal Information] [Subscribe] [Scholar Register] [Received: 05/30/2015] [Revised: 07/03/2015] [Accepted: 07/04/2015] [Indexed: 11/22/2022]
Abstract
Citrus tristeza virus (CTV), one of the most economically important viruses, produces a unique protein, p33, which is encoded only in the genomes of isolates of CTV. Recently, we demonstrated that membrane association of the p33 protein confers virus ability to extend its host range. In this work we show that p33 shares characteristics of viral movement proteins. Upon expression in a host cell, the protein localizes to plasmodesmata and displays the ability to form extracellular tubules. Furthermore, p33 appears to traffic via the cellular secretory pathway and the actin network to plasmodesmata locations and is likely being recycled through the endocytic pathway. Finally, our study reveals that p33 colocalizes with a putative movement protein of CTV, the p6 protein. These results suggest a potential role of p33 as a noncanonical viral movement protein, which mediates virus translocation in the specific hosts.
Collapse
Affiliation(s)
- Aurélie Bak
- University of Florida, Plant Pathology Department, Gainesville, FL 32611, USA
| | | |
Collapse
|
13
|
Xu Q, Ni H, Zhang J, Lan Y, Ren C, Zhou Y. Whole-genome expression analysis of Rice black-streaked dwarf virus in different plant hosts and small brown planthopper. Gene 2015; 572:169-74. [DOI: 10.1016/j.gene.2015.07.008] [Citation(s) in RCA: 9] [Impact Index Per Article: 1.0] [Reference Citation Analysis] [Track Full Text] [Journal Information] [Subscribe] [Scholar Register] [Received: 03/27/2015] [Revised: 06/30/2015] [Accepted: 07/02/2015] [Indexed: 11/25/2022]
|
14
|
Sun Z, He Y, Li J, Wang X, Chen J. Genome-Wide Characterization of Rice Black Streaked Dwarf Virus-Responsive MicroRNAs in Rice Leaves and Roots by Small RNA and Degradome Sequencing. ACTA ACUST UNITED AC 2014; 56:688-99. [DOI: 10.1093/pcp/pcu213] [Citation(s) in RCA: 39] [Impact Index Per Article: 3.9] [Reference Citation Analysis] [Track Full Text] [Journal Information] [Subscribe] [Scholar Register] [Received: 08/10/2014] [Accepted: 12/16/2014] [Indexed: 11/14/2022]
|
15
|
Amari K, Di Donato M, Dolja VV, Heinlein M. Myosins VIII and XI play distinct roles in reproduction and transport of tobacco mosaic virus. PLoS Pathog 2014; 10:e1004448. [PMID: 25329993 PMCID: PMC4199776 DOI: 10.1371/journal.ppat.1004448] [Citation(s) in RCA: 53] [Impact Index Per Article: 5.3] [Reference Citation Analysis] [Abstract] [MESH Headings] [Track Full Text] [Download PDF] [Figures] [Journal Information] [Subscribe] [Scholar Register] [Received: 04/02/2014] [Accepted: 09/04/2014] [Indexed: 12/02/2022] Open
Abstract
Viruses are obligatory parasites that depend on host cellular factors for their replication as well as for their local and systemic movement to establish infection. Although myosin motors are thought to contribute to plant virus infection, their exact roles in the specific infection steps have not been addressed. Here we investigated the replication, cell-to-cell and systemic spread of Tobacco mosaic virus (TMV) using dominant negative inhibition of myosin activity. We found that interference with the functions of three class VIII myosins and two class XI myosins significantly reduced the local and long-distance transport of the virus. We further determined that the inactivation of myosins XI-2 and XI-K affected the structure and dynamic behavior of the ER leading to aggregation of the viral movement protein (MP) and to a delay in the MP accumulation in plasmodesmata (PD). The inactivation of myosin XI-2 but not of myosin XI-K affected the localization pattern of the 126k replicase subunit and the level of TMV accumulation. The inhibition of myosins VIII-1, VIII-2 and VIII-B abolished MP localization to PD and caused its retention at the plasma membrane. These results suggest that class XI myosins contribute to the viral propagation and intracellular trafficking, whereas myosins VIII are specifically required for the MP targeting to and virus movement through the PD. Thus, TMV appears to recruit distinct myosins for different steps in the cell-to-cell spread of the infection.
Collapse
Affiliation(s)
- Khalid Amari
- Zürich-Basel Plant Science Center, Botany, Department of Environmental Sciences, University of Basel, Basel, Switzerland
| | - Martin Di Donato
- Zürich-Basel Plant Science Center, Botany, Department of Environmental Sciences, University of Basel, Basel, Switzerland
| | - Valerian V. Dolja
- Department of Botany and Plant Pathology and Center for Genome Research and Biocomputing, Oregon State University, Corvallis, Oregon, United States of America
| | - Manfred Heinlein
- Zürich-Basel Plant Science Center, Botany, Department of Environmental Sciences, University of Basel, Basel, Switzerland
- Institut de Biologie Moléculaire des Plantes du CNRS, Université de Strasbourg, Strasbourg, France
| |
Collapse
|
16
|
Hiraguri A, Netsu O, Sasaki N, Nyunoya H, Sasaya T. Recent progress in research on cell-to-cell movement of rice viruses. Front Microbiol 2014; 5:210. [PMID: 24904532 PMCID: PMC4033013 DOI: 10.3389/fmicb.2014.00210] [Citation(s) in RCA: 9] [Impact Index Per Article: 0.9] [Reference Citation Analysis] [Abstract] [Key Words] [Track Full Text] [Download PDF] [Figures] [Journal Information] [Subscribe] [Scholar Register] [Received: 09/13/2013] [Accepted: 04/20/2014] [Indexed: 11/25/2022] Open
Abstract
To adapt to plants as hosts, plant viruses have evolutionally needed the capacity to modify the host plasmodesmata (PD) that connect adjacent cells. Plant viruses have acquired one or more genes that encode movement proteins (MPs), which facilitate the cell-to-cell movement of infectious virus entities through PD to adjacent cells. Because of the diversity in their genome organization and in their coding sequences, rice viruses may each have a distinct cell-to-cell movement strategy. The complexity of their unusual genome organizations and replication strategies has so far hampered reverse genetic research on their genome in efforts to investigate virally encoded proteins that are involved in viral movement. However, the MP of a particular virus can complement defects in cell-to-cell movement of other distantly related or even unrelated viruses. Trans-complementation experiments using a combination of a movement-defective virus and viral proteins of interest to identify MPs of several rice viruses have recently been successful. In this article, we reviewed recent research that has advanced our understanding of cell-to-cell movement of rice viruses.
Collapse
Affiliation(s)
- Akihiro Hiraguri
- Department of Applied Biological Chemistry, Graduate School of Agricultural and Life Sciences, The University of TokyoTokyo, Japan
| | - Osamu Netsu
- Department of Agricultural and Environmental Biology, Graduate School of Agricultural and Life Sciences, The University of TokyoTokyo, Japan
| | - Nobumitsu Sasaki
- Gene Research Center, Tokyo University of Agriculture and TechnologyFuchu, Tokyo, Japan
| | - Hiroshi Nyunoya
- Gene Research Center, Tokyo University of Agriculture and TechnologyFuchu, Tokyo, Japan
| | - Takahide Sasaya
- Plant Disease Group, Agro-Environment Research Division, Kyushu Okinawa Agricultural Research Center, National Agriculture and Food Research OrganizationKoshi, Kumamoto, Japan
| |
Collapse
|
17
|
Proteomic analysis of interaction between P7-1 of Southern rice black-streaked dwarf virus and the insect vector reveals diverse insect proteins involved in successful transmission. J Proteomics 2014; 102:83-97. [DOI: 10.1016/j.jprot.2014.03.004] [Citation(s) in RCA: 35] [Impact Index Per Article: 3.5] [Reference Citation Analysis] [Track Full Text] [Journal Information] [Subscribe] [Scholar Register] [Received: 11/28/2013] [Revised: 02/20/2014] [Accepted: 03/06/2014] [Indexed: 01/06/2023]
|
18
|
Abstract
The family Reoviridae separates two subfamilies and consists of 15 genera. Fourteen viruses in three genera (Phytoreovirus, Oryzavirus, and Fijivirus) infect plants. The outbreaks of the plant-infecting reoviruses cause sometime the serious yield loss of rice and maize, and are a menace to safe and efficient food production in the Southeast Asia. The plant-infecting reoviruses are double-shelled icosahedral particles, from 50 to 80nm in diameter, and include from 10 to 12 segmented double-stranded genomic RNAs depending on the viruses. These viruses are transmitted in a persistent manner by the vector insects and replicated in both plants and in their vectors. This review provides a brief overview of the plant-infecting reoviruses and their recent research progresses including the strategy for viral controls using transgenic rice plants.
Collapse
Affiliation(s)
- Takahide Sasaya
- Agro-Environment Research Division,NARO Kyushu Okinawa Agricultural Research Center
| |
Collapse
|
19
|
Sun Z, Yang D, Xie L, Sun L, Zhang S, Zhu Q, Li J, Wang X, Chen J. Rice black-streaked dwarf virus P10 induces membranous structures at the ER and elicits the unfolded protein response in Nicotiana benthamiana. Virology 2013; 447:131-9. [PMID: 24210107 DOI: 10.1016/j.virol.2013.09.001] [Citation(s) in RCA: 41] [Impact Index Per Article: 3.7] [Reference Citation Analysis] [Abstract] [Key Words] [MESH Headings] [Track Full Text] [Journal Information] [Subscribe] [Scholar Register] [Received: 03/29/2013] [Revised: 07/13/2013] [Accepted: 09/01/2013] [Indexed: 01/07/2023]
Abstract
Endoplasmic reticular (ER) membrane modifications play an important role in viral RNA replication and virion assembly but little is known about the involvement of ER-membrane remodeling in the infection cycle of fijiviruses in plant cells. The subcellular localization of Rice black-streaked dwarf virus outer capsid P10 was therefore examined using live-cell imaging. P10 fused to eGFP formed vesicular structures associated with ER membranes in Nicotiana benthamiana epidermal cells and in rice protoplasts. Subcellular fractionation experiments confirmed that P10 is an integral membrane protein. Three predicted transmembrane domains and two less-well-defined domains were each able to target eGFP to the ER. Disruption of the actin cytoskeleton with LatB, indicated that the maintenance of P10-induced membrane structures required the intact actin cytoskeleton. P10 induced the expression of ER stress marker genes, including ER stress-related chaperones and transcription factor, indicating that RBSDV P10 triggers ER stress and the unfolded protein response.
Collapse
Affiliation(s)
- Zongtao Sun
- State Key Laboratory Breeding Base for Zhejiang Sustainable Pest and Disease Control, Ministry of Agriculture Key Laboratory of Biotechnology in Plant Protection, Zhejiang Provincial key laboratory of Plant Virology, Institute of Virology and Biotechnology, Zhejiang Academy of Agricultural Sciences, Hangzhou 310021, China
| | | | | | | | | | | | | | | | | |
Collapse
|
20
|
Sun F, Yuan X, Xu Q, Zhou T, Fan Y, Zhou Y. Overexpression of rice black-streaked dwarf virus p7-1 in Arabidopsis results in male sterility due to non-dehiscent anthers. PLoS One 2013; 8:e79514. [PMID: 24260239 PMCID: PMC3829848 DOI: 10.1371/journal.pone.0079514] [Citation(s) in RCA: 8] [Impact Index Per Article: 0.7] [Reference Citation Analysis] [Abstract] [MESH Headings] [Track Full Text] [Download PDF] [Figures] [Journal Information] [Subscribe] [Scholar Register] [Received: 06/23/2013] [Accepted: 09/21/2013] [Indexed: 12/28/2022] Open
Abstract
Rice black-streaked dwarf virus (RBSDV), a member of the genus Fijivirus in the family Reoviridae, is propagatively transmitted by the small brown planthopper (Laodelphax striatellus Fallén). RBSDV causes rice black-streaked dwarf and maize rough dwarf diseases, which lead to severe yield losses in crops in China. Although several RBSDV proteins have been studied in detail, the functions of the nonstructural protein P7-1 are still largely unknown. To investigate the role of the P7-1 protein in virus pathogenicity, transgenic Arabidopsis thaliana plants were generated in which the P7-1 gene was expressed under the control of the 35S promoter. The RBSDV P7-1-transgenic Arabidopsis plants (named P7-1-OE) were male sterility. Flowers and pollen from P7-1-transgenic plants were of normal size and shape, and anthers developed to the normal size but failed to dehisce. The non-dehiscent anthers observed in P7-1-OE were attributed to decreased lignin content in the anthers. Furthermore, the reactive oxygen species levels were quite low in the transgenic plants compared with the wild type. These results indicate that ectopic expression of the RBSDV P7-1 protein in A. thaliana causes male sterility, possibly through the disruption of the lignin biosynthesis and H2O2-dependent polymerization pathways.
Collapse
Affiliation(s)
- Feng Sun
- Key Laboratory of Monitoring and Management of Plant Virus Diseases, Institute of Plant Protection, Jiangsu Academy of Agricultural Sciences, Nanjing, Jiangsu Province, China
| | - Xia Yuan
- Key Laboratory of Monitoring and Management of Plant Virus Diseases, Institute of Plant Protection, Jiangsu Academy of Agricultural Sciences, Nanjing, Jiangsu Province, China
| | - Qiufang Xu
- Key Laboratory of Monitoring and Management of Plant Virus Diseases, Institute of Plant Protection, Jiangsu Academy of Agricultural Sciences, Nanjing, Jiangsu Province, China
| | - Tong Zhou
- Key Laboratory of Monitoring and Management of Plant Virus Diseases, Institute of Plant Protection, Jiangsu Academy of Agricultural Sciences, Nanjing, Jiangsu Province, China
| | - Yongjian Fan
- Key Laboratory of Monitoring and Management of Plant Virus Diseases, Institute of Plant Protection, Jiangsu Academy of Agricultural Sciences, Nanjing, Jiangsu Province, China
| | - Yijun Zhou
- Key Laboratory of Monitoring and Management of Plant Virus Diseases, Institute of Plant Protection, Jiangsu Academy of Agricultural Sciences, Nanjing, Jiangsu Province, China
| |
Collapse
|
21
|
Wang Q, Tao T, Han Y, Chen X, Fan Z, Li D, Yu J, Han C. Nonstructural protein P7-2 encoded by Rice black-streaked dwarf virus interacts with SKP1, a core subunit of SCF ubiquitin ligase. Virol J 2013; 10:325. [PMID: 24176102 PMCID: PMC3819663 DOI: 10.1186/1743-422x-10-325] [Citation(s) in RCA: 28] [Impact Index Per Article: 2.5] [Reference Citation Analysis] [Abstract] [Key Words] [MESH Headings] [Track Full Text] [Download PDF] [Figures] [Journal Information] [Subscribe] [Scholar Register] [Received: 07/10/2013] [Accepted: 10/24/2013] [Indexed: 11/16/2022] Open
Abstract
BACKGROUND Rice black-streaked dwarf virus (RBSDV), a member of the genus Fijivirus within the family Reoviridae, causes severe damage to cereal crops in South East Asia. The protein P7-2, encoded by the second open reading frame of segment S7, is conserved among most plant-infecting fijiviruses, but its function is still obscure. RESULTS In this study, P7-2 was used as bait in two-hybrid screens of a cDNA library expressing Zea mays proteins. It was found that there is a strong interaction between P7-2 and Z. mays SKP1 (SKP1Maize), a core subunit of the multicomponent SCF (SKP1/Cullin1/F-box/Rbx1) E3 ubiquitin ligase. The interaction was then confirmed in leaf epidermal cells of Nicotiana benthamiana by bimolecular fluorescence complementation assay. Further investigations indicated that P7-2 also interacts with SKP1 proteins from other plants, including Arabidopsis thaliana, N. benthamiana,Oryza sativa and Saccharum sinense. The C-terminal fragment of SKP1Maize (residues 97-176) and the middle fragment of P7-2 (residues 79-214) are necessary to sustain the interaction, while the C-terminal putative α-helix domain spanning residues 214-295 of P7-2 greatly facilitates the interaction. Agrobacterium-mediated transient suppression assay showed that P7-2 has no obvious activity to suppress local RNA silencing. CONCLUSIONS Taken together, our results indicated that RBSDV P7-2 can interact with SKP1 proteins from different plants. This is the first report linking a Fijivirus protein to a component of the ubiquitin proteasome system. P7-2 might be a potential F-box protein encoded by RBSDV and involved in the plant-virus interaction through ubiquitination pathway.
Collapse
Affiliation(s)
- Qian Wang
- Key Laboratory for Tobacco Gene Resources, Tobacco Research Institute, Chinese Academy of Agricultural Sciences, Qingdao 266101, P. R. China
- State Key Laboratory for Agro-biotechnology and Ministry of Agriculture Key Laboratory for Plant Pathology, China Agricultural University, Beijing 100193, P. R. China
| | - Tao Tao
- State Key Laboratory for Agro-biotechnology and Ministry of Agriculture Key Laboratory for Plant Pathology, China Agricultural University, Beijing 100193, P. R. China
| | - Yanhong Han
- State Key Laboratory for Agro-biotechnology and Ministry of Agriculture Key Laboratory for Plant Pathology, China Agricultural University, Beijing 100193, P. R. China
| | - Xiangru Chen
- State Key Laboratory for Agro-biotechnology and Ministry of Agriculture Key Laboratory for Plant Pathology, China Agricultural University, Beijing 100193, P. R. China
| | - Zaifeng Fan
- State Key Laboratory for Agro-biotechnology and Ministry of Agriculture Key Laboratory for Plant Pathology, China Agricultural University, Beijing 100193, P. R. China
| | - Dawei Li
- State Key Laboratory for Agro-biotechnology and Ministry of Agriculture Key Laboratory for Plant Pathology, China Agricultural University, Beijing 100193, P. R. China
| | - Jialin Yu
- State Key Laboratory for Agro-biotechnology and Ministry of Agriculture Key Laboratory for Plant Pathology, China Agricultural University, Beijing 100193, P. R. China
| | - Chenggui Han
- State Key Laboratory for Agro-biotechnology and Ministry of Agriculture Key Laboratory for Plant Pathology, China Agricultural University, Beijing 100193, P. R. China
| |
Collapse
|