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Dhadly DK, Kavalappara SR, McAvoy T, Severns PM, Simmons AM, Srinivasan R, Bag S. Cucurbit Leaf Crumple Virus Is Seed Transmitted in Yellow Squash ( Cucurbita pepo). PLANT DISEASE 2025; 109:63-72. [PMID: 39151040 DOI: 10.1094/pdis-06-24-1330-re] [Citation(s) in RCA: 0] [Impact Index Per Article: 0] [Reference Citation Analysis] [Abstract] [Key Words] [MESH Headings] [Track Full Text] [Subscribe] [Scholar Register] [Indexed: 08/18/2024]
Abstract
The traditional understanding of begomovirus transmission exclusively through the whitefly Bemisia tabaci (Gennadius) has shifted with findings of seed transmission in some begomoviruses over the last decade. We investigated the seed transmissibility of cucurbit leaf crumple virus (CuLCrV), a bipartite begomovirus that has recently emerged as a severe constraint for yellow squash (Cucurbita pepo L.) production in the southeastern United States. We found a high concentration of CuLCrV in the male and female flower tissues of infected squash, including the pollen and ovules. The virus infiltrated the fruit tissues, including the endocarp and funiculus, which are anatomically positioned adjacent to the seeds. In seeds, CuLCrV was detected in the endosperm and embryo, where there are no vascular connections, in addition to the seed coat. The virus was detected in the radicle, plumule, cotyledonary leaves, and true leaves of seedlings grown from seeds collected from infected fruits. In the grow-out test conducted, CuLCrV infections ranged from 17 to 56% of the progeny plants. To ensure that partial viral genome fragments were not being mistaken for replicative forms of the virus, we performed rolling circle amplification PCR and amplified complete DNA-A and DNA-B of CuLCrV from seed tissues, seedlings, and progeny plants of CuLCrV-infected squash. Near-complete DNA-A and DNA-B sequences of CuLCrV were recovered from a progeny plant, further validating our findings. Our results demonstrate that CuLCrV can translocate from vegetative to reproductive tissues of yellow squash, persist within the seeds, and subsequently induce infection in progeny plants, confirming its capacity for seed transmission.
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Affiliation(s)
- Dalvir Kaur Dhadly
- Department of Plant Pathology, University of Georgia, Tifton, GA 31793, U.S.A
| | | | - Theodore McAvoy
- Department of Horticulture, University of Georgia, Tifton, GA 31793, U.S.A
| | - Paul M Severns
- Department of Plant Pathology, University of Georgia, Athens, GA 30602, U.S.A
| | - Alvin M Simmons
- U.S. Vegetable Laboratory, USDA-ARS, Charleston, SC 29414, U.S.A
| | | | - Sudeep Bag
- Department of Plant Pathology, University of Georgia, Tifton, GA 31793, U.S.A
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Sandra N, Mandal B. Emerging evidence of seed transmission of begomoviruses: implications in global circulation and disease outbreak. FRONTIERS IN PLANT SCIENCE 2024; 15:1376284. [PMID: 38807782 PMCID: PMC11130427 DOI: 10.3389/fpls.2024.1376284] [Citation(s) in RCA: 4] [Impact Index Per Article: 4.0] [Reference Citation Analysis] [Abstract] [Key Words] [Track Full Text] [Figures] [Subscribe] [Scholar Register] [Received: 01/25/2024] [Accepted: 04/09/2024] [Indexed: 05/30/2024]
Abstract
Begomoviruses (family Geminiviridae) are known for causing devastating diseases in fruit, fibre, pulse, and vegetable crops throughout the world. Begomoviruses are transmitted in the field exclusively through insect vector whitefly (Bemisia tabaci), and the frequent outbreaks of begomoviruses are attributed largely due to the abundance of whitefly in the agri-ecosystem. Begomoviruses being phloem-borne were known not be transmitted through seeds of the infected plants. The recent findings of seed transmission of begomoviruses brought out a new dimension of begomovirus perpetuation and dissemination. The first convincing evidence of seed transmission of begomoviruses was known in 2015 for sweet potato leaf curl virus followed by several begomoviruses, like bhendi yellow vein mosaic virus, bitter gourd yellow mosaic virus, dolichos yellow mosaic virus, mungbean yellow mosaic virus, mungbean yellow mosaic India virus, pepper yellow leaf curl Indonesia virus, tomato leaf curl New Delhi virus, tomato yellow leaf curl virus, tomato yellow leaf curl Sardinia virus, and okra yellow mosaic Mexico virus. These studies brought out two perspectives of seed-borne nature of begomoviruses: (i) the presence of begomovirus in the seed tissues derived from the infected plants but no expression of disease symptoms in the progeny seedlings and (ii) the seed infection successfully transmitted the virus to cause disease to the progeny seedlings. It seems that the seed transmission of begomovirus is a feature of a specific combination of host-genotype and virus strain, rather than a universal phenomenon. This review comprehensively describes the seed transmitted begomoviruses reported in the last 9 years and the possible mechanism of seed transmission. An emphasis is placed on the experimental results that proved the seed transmission of various begomoviruses, factors affecting seed transmission and impact of begomovirus seed transmission on virus circulation, outbreak of the disease, and management strategies.
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Affiliation(s)
- Nagamani Sandra
- Seed Pathology Laboratory, Division of Seed Science and Technology, Indian Agricultural Research Institute, New Delhi, India
| | - Bikash Mandal
- Advanced Centre for Plant Virology, Division of Plant Pathology, Indian Agricultural Research Institute, New Delhi, India
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Nalla MK, Schafleitner R, Pappu HR, Barchenger DW. Current status, breeding strategies and future prospects for managing chilli leaf curl virus disease and associated begomoviruses in Chilli ( Capsicum spp.). FRONTIERS IN PLANT SCIENCE 2023; 14:1223982. [PMID: 37936944 PMCID: PMC10626458 DOI: 10.3389/fpls.2023.1223982] [Citation(s) in RCA: 0] [Impact Index Per Article: 0] [Reference Citation Analysis] [Abstract] [Key Words] [Track Full Text] [Figures] [Subscribe] [Scholar Register] [Received: 05/16/2023] [Accepted: 10/09/2023] [Indexed: 11/09/2023]
Abstract
Chilli leaf curl virus disease caused by begomoviruses, has emerged as a major threat to global chilli production, causing severe yield losses and economic harm. Begomoviruses are a highly successful and emerging group of plant viruses that are primarily transmitted by whiteflies belonging to the Bemisia tabaci complex. The most effective method for mitigating chilli leaf curl virus disease losses is breeding for host resistance to Begomovirus. This review highlights the current situation of chilli leaf curl virus disease and associated begomoviruses in chilli production, stressing the significant issues that breeders and growers confront. In addition, the various breeding methods used to generate begomovirus resistant chilli cultivars, and also the complicated connections between the host plant, vector and the virus are discussed. This review highlights the importance of resistance breeding, emphasising the importance of multidisciplinary approaches that combine the best of traditional breeding with cutting-edge genomic technologies. subsequently, the article highlights the challenges that must be overcome in order to effectively deploy begomovirus resistant chilli varieties across diverse agroecological zones and farming systems, as well as understanding the pathogen thus providing the opportunities for improving the sustainability and profitability of chilli production.
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Affiliation(s)
- Manoj Kumar Nalla
- World Vegetable Center, South and Central Asia Regional Office, Hyderabad, India
| | | | - Hanu R. Pappu
- Department of Plant Pathology, Washington State University, Pullman, WA, United States
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Fiallo-Olivé E, Navas-Castillo J. Begomoviruses: what is the secret(s) of their success? TRENDS IN PLANT SCIENCE 2023; 28:715-727. [PMID: 36805143 DOI: 10.1016/j.tplants.2023.01.012] [Citation(s) in RCA: 18] [Impact Index Per Article: 9.0] [Reference Citation Analysis] [Abstract] [Key Words] [Track Full Text] [Subscribe] [Scholar Register] [Received: 09/19/2022] [Revised: 01/16/2023] [Accepted: 01/26/2023] [Indexed: 05/13/2023]
Abstract
Begomoviruses constitute an extremely successful group of emerging plant viruses transmitted by whiteflies of the Bemisia tabaci complex. Hosts include important vegetable, root, and fiber crops grown in the tropics and subtropics. Factors contributing to the ever-increasing diversity and success of begomoviruses include their predisposition to recombine their genomes, interaction with DNA satellites recruited throughout their evolution, presence of wild plants as a virus reservoir and a source of speciation, and extreme polyphagia and continuous movement of the insect vectors to temperate regions. These features as well as some controversial issues (replication in the insect vector, putative seed transmission, transmission by insects other than B. tabaci, and expansion of the host range to monocotyledonous plants) will be analyzed in this review.
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Affiliation(s)
- Elvira Fiallo-Olivé
- Instituto de Hortofruticultura Subtropical y Mediterránea 'La Mayora' (IHSM-UMA-CSIC), Consejo Superior de Investigaciones Científicas, 29750 Algarrobo-Costa, Málaga, Spain.
| | - Jesús Navas-Castillo
- Instituto de Hortofruticultura Subtropical y Mediterránea 'La Mayora' (IHSM-UMA-CSIC), Consejo Superior de Investigaciones Científicas, 29750 Algarrobo-Costa, Málaga, Spain
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Wahyono A, Murti RH, Hartono S, Nuringtyas TR, Wijonarko A, Mulyantoro M, Firmansyah D, Afifuddin A, Purnama ICG. Current Status and Complexity of Three Begomovirus Species in Pepper Plants in Lowlands and Highlands in Java Island, Indonesia. Viruses 2023; 15:1278. [PMID: 37376578 DOI: 10.3390/v15061278] [Citation(s) in RCA: 0] [Impact Index Per Article: 0] [Reference Citation Analysis] [Abstract] [Key Words] [Track Full Text] [Journal Information] [Subscribe] [Scholar Register] [Received: 05/03/2023] [Revised: 05/21/2023] [Accepted: 05/28/2023] [Indexed: 06/29/2023] Open
Abstract
Three primary species from the Begomovirus genus, Pepper yellow leaf curl Indonesia virus (PepYLCIV), Tomato yellow leaf curl Kanchanaburi virus (TYLCKaV), and Tomato leaf curl New Delhi virus (ToLCNDV), are suspected of spreading throughout pepper production centers, and plants are infected by a single species or a combination of two or three species. This study was conducted to provide complete information about the symptoms, incidence and severity, whitefly biotypes, as well as the dominance status of the three Begomovirus species in pepper-producing areas in Java. A DNA analysis was carried out on leaf samples to identify Begomovirus species and biotypes of B. tabaci collected from 18 areas (16 districts) in lowlands (<400 m asl) and highlands (>700 m asl). The DNA analysis showed that B. tabaci biotype B was the most commonly detected in all locations compared to the A, AN, and Q biotypes. The incidence of begomovirus infection was at a high level, 93% and 88.78% in the lowlands and highlands, respectively. However, the severity of begomovirus infection was significantly higher in the lowlands (54.50%) than in the highlands (38.11%). A single infection of PepYLCIV was most dominant in all locations sampled and caused severe infection, followed by a mixed infection with TYLCKaV. Therefore, the current status of begomovirus infection, especially PepYLCIV, can provide advice to farmers using more tolerant and resistant varieties as well as a breeding strategy for resistant pepper varieties.
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Affiliation(s)
- Andi Wahyono
- Department of Horticulture Crop Research Development, PT BISI International Tbk, Kediri 64293, Indonesia
- Department of Agronomy, Faculty of Agriculture, Universitas Gadjah Mada, Sleman 55281, Indonesia
| | - Rudi Hari Murti
- Department of Agronomy, Faculty of Agriculture, Universitas Gadjah Mada, Sleman 55281, Indonesia
| | - Sedyo Hartono
- Department of Plant Protection, Faculty of Agriculture, Universitas Gadjah Mada, Sleman 55281, Indonesia
| | - Tri Rini Nuringtyas
- Department of Tropical Biology, Faculty of Biology, Universitas Gadjah Mada, Sleman 55281, Indonesia
| | - Arman Wijonarko
- Department of Plant Protection, Faculty of Agriculture, Universitas Gadjah Mada, Sleman 55281, Indonesia
| | - Mulyantoro Mulyantoro
- Department of Horticulture Crop Research Development, PT BISI International Tbk, Kediri 64293, Indonesia
| | - Deni Firmansyah
- Department of Horticulture Crop Research Development, PT BISI International Tbk, Kediri 64293, Indonesia
| | - Ahmad Afifuddin
- Department of Biotechnology, PT BISI International Tbk, Kediri 64175, Indonesia
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Gomathi Devi R, Jothika C, Sankari A, Lakshmi S, Malathi VG, Renukadevi P. Seed Transmission of Begomoviruses: A Potential Threat for Bitter Gourd Cultivation. PLANTS (BASEL, SWITZERLAND) 2023; 12:1396. [PMID: 36987084 PMCID: PMC10057619 DOI: 10.3390/plants12061396] [Citation(s) in RCA: 0] [Impact Index Per Article: 0] [Reference Citation Analysis] [Abstract] [Key Words] [Track Full Text] [Figures] [Subscribe] [Scholar Register] [Received: 02/04/2023] [Revised: 03/13/2023] [Accepted: 03/15/2023] [Indexed: 06/19/2023]
Abstract
Bitter gourd (Momordica charantia L.), one of the valued vegetable crops in India, is severely affected by yellow mosaic disease caused by two begomoviruses, tomato leaf curl New Delhi virus (ToLCNDV) and bitter gourd yellow mosaic virus (BgYMV). The symptoms are yellowing, distortion of leaf, puckering, and malformed fruits. Increased incidence of the disease and appearance of symptoms even in young emerging seedling stage were suggestive of seed transmission of the viruses, which was examined in detail. To study the seed transmission, two sources-seeds of elite hybrids H1, H2, H3, H4, and Co1 procured from a seed market; and seeds from infected plants in the farmer's field were tested. Detection of the virus by DAS-ELISA using polyclonal antibody indicated embryo infection up to 63%, 26%, 20%, and 10% in hybrids H1, H2, H3, and H4, respectively, for market-procured seeds. In PCR analysis with primers specific for ToLCNDV and BgYMV, infection by ToLCNDV was as high as 76% and mixed infection was 24%. In contrast, in seeds derived from field-infected plants, the percentage detection was less. Grow-out tests with market-procured seeds revealed no transmission for BgYMV compared with 5% transmission for ToLCNDV. Whether seed-borne inocula could serve as an inoculum for new infection in a field and further progress of the disease was investigated in a microplot study. The study clearly revealed variation in seed transmission between different sources, lots, cultivars, and viruses. The virus present in symptomatic and asymptomatic plants was easily transmitted by whitefly. In another microplot experiment, the potential of seed-borne virus as inoculum was proved. There was 43.3% initial seed transmission in the microplot, increasing to 70% after release of 60 whiteflies.
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Affiliation(s)
- Ravisankar Gomathi Devi
- Department of Plant Pathology, Tamil Nadu Agricultural University, Coimbatore 641003, Tamil Nadu, India
| | - Chinnaraj Jothika
- Department of Plant Pathology, Tamil Nadu Agricultural University, Coimbatore 641003, Tamil Nadu, India
| | - Arjunan Sankari
- Department of Vegetable Science, Tamil Nadu Agricultural University, Coimbatore 641003, Tamil Nadu, India
| | - Sethuraman Lakshmi
- Department of Seed Science and Technology, Tamil Nadu Agricultural University, Coimbatore 641003, Tamil Nadu, India
| | - Varagur Ganesan Malathi
- Retired Scientist, ICAR-IARI, GI, Sree Kumaran Hill Crest Apartment, Coimbatore 641046, Tamil Nadu, India
| | - Perumal Renukadevi
- Department of Plant Pathology, Tamil Nadu Agricultural University, Coimbatore 641003, Tamil Nadu, India
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Fortes IM, Pérez-Padilla V, Romero-Rodríguez B, Fernández-Muñoz R, Moyano C, Castillo AG, De León L, Moriones E. Begomovirus Tomato Leaf Curl New Delhi Virus Is Seedborne but Not Seed Transmitted in Melon. PLANT DISEASE 2023; 107:473-479. [PMID: 35771117 DOI: 10.1094/pdis-09-21-1930-re] [Citation(s) in RCA: 5] [Impact Index Per Article: 2.5] [Reference Citation Analysis] [Abstract] [Key Words] [MESH Headings] [Track Full Text] [Subscribe] [Scholar Register] [Indexed: 06/15/2023]
Abstract
Seed transmission can be of considerable relevance to the dissemination of plant viruses in nature and for their prevalence and perpetuation. Long-distance spread of isolates of the begomovirus species Tomato leaf curl New Delhi virus (genus Begomovirus, family Geminiviridae) has recently occurred from Asia to the Middle East and the Mediterranean Basin. Here, we investigated the possible transmission by melon (Cucumis melo L.) seeds of a tomato leaf curl New Delhi virus (ToLCNDV) isolate of the "Spain" strain widely distributed in the Mediterranean area as an alternative mechanism for long-distance spread. PCR amplification detection of ToLCNDV in floral parts and mature seeds of melon plants reveals that this virus is seedborne. "Seedborne" is defined as the ability of a virus to be carried through seeds, which does not necessarily lead to transmission to the next generation. Treatment with a chemical disinfectant significantly reduced the detectable virus associated with melon seeds, suggesting ToLCNDV contamination of the external portion of the seed coat. Also, when the internal fraction of the mature seed (seed cotyledons + embryo) was analyzed by quantitative PCR amplification, ToLCNDV was detectable at low levels, suggesting the potential for viral contamination or infection of the internal portions of seed. However, grow-out studies conducted with melon progeny plants germinated from mature seeds collected from ToLCNDV-infected plants and evaluated at early (1-leaf) or at late (20-leaf) growth stages did not support the transmission of ToLCNDV from seeds to offspring.
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Affiliation(s)
- Isabel M Fortes
- Instituto de Hortofruticultura Subtropical y Mediterránea "La Mayora" (IHSM), Universidad de Málaga-Consejo Superior de Investigaciones Científicas, Estación Experimental "La Mayora", E-29750 Algarrobo-Costa, Málaga, Spain
| | - Verónica Pérez-Padilla
- Instituto Nacional de Investigación y Tecnología Agraria y Alimentaria (INIA), Ctra. de La Coruña, km 7.5, E-28040 Madrid, Spain
| | - Beatriz Romero-Rodríguez
- IHSM, Universidad de Málaga-Consejo Superior de Investigaciones Científicas, Área de Genética, Facultad de Ciencias, Universidad de Málaga, E-29071, Málaga, Spain
| | - Rafael Fernández-Muñoz
- Instituto de Hortofruticultura Subtropical y Mediterránea "La Mayora" (IHSM), Universidad de Málaga-Consejo Superior de Investigaciones Científicas, Estación Experimental "La Mayora", E-29750 Algarrobo-Costa, Málaga, Spain
| | - Cristina Moyano
- Instituto Nacional de Investigación y Tecnología Agraria y Alimentaria (INIA), Ctra. de La Coruña, km 7.5, E-28040 Madrid, Spain
| | - Araceli G Castillo
- IHSM, Universidad de Málaga-Consejo Superior de Investigaciones Científicas, Área de Genética, Facultad de Ciencias, Universidad de Málaga, E-29071, Málaga, Spain
| | - Leandro De León
- Instituto Nacional de Investigación y Tecnología Agraria y Alimentaria (INIA), Ctra. de La Coruña, km 7.5, E-28040 Madrid, Spain
| | - Enrique Moriones
- Instituto de Hortofruticultura Subtropical y Mediterránea "La Mayora" (IHSM), Universidad de Málaga-Consejo Superior de Investigaciones Científicas, Estación Experimental "La Mayora", E-29750 Algarrobo-Costa, Málaga, Spain
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Lestari SM, Hidayat SH, Hidayat P, Kil EJ, Lee S, Kim SM, Lee KY. Identification of begomoviruses associated with the insect vector Bemisia tabaci and various host plants on Java Island, Indonesia. ARCHIVES OF INSECT BIOCHEMISTRY AND PHYSIOLOGY 2023; 112:e21984. [PMID: 36397643 DOI: 10.1002/arch.21984] [Citation(s) in RCA: 0] [Impact Index Per Article: 0] [Reference Citation Analysis] [Abstract] [Key Words] [MESH Headings] [Track Full Text] [Subscribe] [Scholar Register] [Received: 08/29/2022] [Revised: 10/13/2022] [Accepted: 10/23/2022] [Indexed: 06/16/2023]
Abstract
Begomoviruses are economically important plant viruses and are transmitted by Bemisia tabaci which is a complex of various cryptic species. However, it is uncertain whether most begomoviruses that infect host plants are transmitted by B. tabaci at a similar rate. We compared the begomovirus profiles that were detected in a total of 37 whitefly populations and 52 host plants on Java Island, Indonesia. Seven begomovirus species were detected in B. tabaci at different rates: pepper yellow leaf curl Indonesia virus (PepYLCIV, 56.8%), tomato yellow leaf curl Kanchanaburi virus (TYLCKaV, 46.0%), tomato leaf curl New Delhi virus (ToLCNDV, 21.6%), squash leaf curl China virus (SLCCNV, 21.6%), ageratum yellow vein China virus (AYVCNV, 2.7%), mungbean yellow mosaic India virus (MYMIV, 2.7%), and okra enation leaf curl virus (OELCuV, 2.7%). The begomoviruses were detected at different rates in three cryptic species of B. tabaci. In addition, six begomovirus species were detected in the various host plants at different rates: PepYLCIV (67.3%), TYLCKaV (53.9%), ToLCNDV (13.5%), MYMIV (11.5%), AYVCNV (3.9%), and Tomato yellow leaf curl Thailand virus (TYLCTHV) (1.9%). By comparing the virus presence between whiteflies and plants, five begomoviruses (AYVCNV, MYMIV, PepYLCIV, ToLCNDV, and TYLCKaV) were detected in both samples, but their sequence similarity was highly variable depending on the begomovirus themselves; TYLCKaV was highest (99.4%-100%) than any other viruses. Our study suggests B. tabaci acquire begomoviruses at different rates from plants. This study provides important information on the potential variation in the begomovirus transmission mechanism.
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Affiliation(s)
- Susanti M Lestari
- Division of Applied Biosciences, College of Agriculture and Life Sciences, Kyungpook National University, Daegu, Korea
| | - Sri H Hidayat
- Department of Plant Protection, Faculty of Agriculture, IPB University, Bogor, Indonesia
| | - Purnama Hidayat
- Department of Plant Protection, Faculty of Agriculture, IPB University, Bogor, Indonesia
| | - Eui-Joon Kil
- Department of Plant Medicals, Andong National University, Andong, Korea
| | - Sukchan Lee
- Department of Integrative Biotechnology, Sungkyunkwan University, Suwon, Korea
| | - Sang-Mok Kim
- Plant Quarantine Technology Center, Animal and Plant Quarantine Agency, Gimcheon, Korea
| | - Kyeong-Yeoll Lee
- Division of Applied Biosciences, College of Agriculture and Life Sciences, Kyungpook National University, Daegu, Korea
- Institute of Plant Medicine, Kyungpook National University, Daegu, Korea
- Quantum Bio Research Center, Kyungpook National University, Gunwi, Korea
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Vo TTB, Troiano E, Lal A, Hoang PT, Kil EJ, Lee S, Parrella G. ToLCNDV-ES infection in tomato is enhanced by TYLCV: Evidence from field survey and agroinoculation. Front Microbiol 2022; 13:954460. [PMID: 36425034 PMCID: PMC9679516 DOI: 10.3389/fmicb.2022.954460] [Citation(s) in RCA: 3] [Impact Index Per Article: 1.0] [Reference Citation Analysis] [Track Full Text] [Download PDF] [Figures] [Journal Information] [Subscribe] [Scholar Register] [Received: 05/27/2022] [Accepted: 09/28/2022] [Indexed: 11/09/2022] Open
Affiliation(s)
- Thuy Thi Bich Vo
- Department of Integrative Biotechnology, Sungkyunkwan University, Suwon, South Korea
| | - Elisa Troiano
- Institute for Sustainable Plant Protection, National Research Council (IPSP-CNR), Portici, Italy
| | - Aamir Lal
- Department of Integrative Biotechnology, Sungkyunkwan University, Suwon, South Korea
| | - Phuong Thi Hoang
- Department of Integrative Biotechnology, Sungkyunkwan University, Suwon, South Korea
| | - Eui-Joon Kil
- Department of Plant Medicals, Andong National University, Andong, South Korea
| | - Sukchan Lee
- Department of Integrative Biotechnology, Sungkyunkwan University, Suwon, South Korea
| | - Giuseppe Parrella
- Institute for Sustainable Plant Protection, National Research Council (IPSP-CNR), Portici, Italy
- *Correspondence: Giuseppe Parrella,
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Qureshi MA, Lal A, Nawaz-ul-Rehman MS, Vo TTB, Sanjaya GNPW, Ho PT, Nattanong B, Kil EJ, Jahan SMH, Lee KY, Tsai CW, Dao HT, Hoat TX, Aye TT, Win NK, Lee J, Kim SM, Lee S. Emergence of Asian endemic begomoviruses as a pandemic threat. FRONTIERS IN PLANT SCIENCE 2022; 13:970941. [PMID: 36247535 PMCID: PMC9554542 DOI: 10.3389/fpls.2022.970941] [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: 06/16/2022] [Accepted: 08/05/2022] [Indexed: 06/16/2023]
Abstract
Plant viruses are responsible for the most devastating and commercially significant plant diseases, especially in tropical and subtropical regions. The genus begomovirus is the largest one in the family Geminiviridae, with a single-stranded DNA genome, either monopartite or bipartite. Begomoviruses are transmitted by insect vectors, such as Bemisia tabaci. Begomoviruses are the major causative agents of diseases in agriculture globally. Because of their diversity and mode of evolution, they are thought to be geographic specific. The emerging begomoviruses are of serious concern due to their increasing host range and geographical expansion. Several begomoviruses of Asiatic origin have been reported in Europe, causing massive economic losses; insect-borne transmission of viruses is a critical factor in virus outbreaks in new geographical regions. This review highlights crucial information regarding Asia's four emerging and highly destructive begomoviruses. We also provided information regarding several less common but still potentially important pathogens of different crops. This information will aid possible direction of future studies in adopting preventive measures to combat these emerging viruses.
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Affiliation(s)
- Muhammad Amir Qureshi
- Department of Integrative Biotechnology, Sungkyunkwan University, Suwon, South Korea
| | - Aamir Lal
- Department of Integrative Biotechnology, Sungkyunkwan University, Suwon, South Korea
| | | | - Thuy Thi Bich Vo
- Department of Integrative Biotechnology, Sungkyunkwan University, Suwon, South Korea
| | | | - Phuong Thi Ho
- Department of Integrative Biotechnology, Sungkyunkwan University, Suwon, South Korea
| | - Bupi Nattanong
- Department of Integrative Biotechnology, Sungkyunkwan University, Suwon, South Korea
| | - Eui-Joon Kil
- Department of Plant Medicals, Andong National University, Andong, South Korea
| | | | - Kyeong-Yeoll Lee
- Division of Applied Biosciences, College of Agriculture and Life Sciences, Kyungpook National University, Daegu, South Korea
| | - Chi-Wei Tsai
- Department of Entomology, National Taiwan University, Taipei, Taiwan
| | - Hang Thi Dao
- Plant Protection Research Institute, Hanoi, Vietnam
| | | | - Tin-Tin Aye
- Department of Entomology, Yezin Agricultural University, Yezin, Myanmar
| | - Nang Kyu Win
- Department of Plant Pathology, Yezin Agricultural University, Yezin, Myanmar
| | - Jangha Lee
- Crop Breeding Research Center, NongWoo Bio, Yeoju, South Korea
| | - Sang-Mok Kim
- Plant Quarantine Technology Center, Animal and Plant Quarantine Agency, Gimcheon, South Korea
| | - Sukchan Lee
- Department of Integrative Biotechnology, Sungkyunkwan University, Suwon, South Korea
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Tabein S, Miozzi L, Matić S, Accotto GP, Noris E. No Evidence for Seed Transmission of Tomato Yellow Leaf Curl Sardinia Virus in Tomato. Cells 2021; 10:cells10071673. [PMID: 34359841 PMCID: PMC8306144 DOI: 10.3390/cells10071673] [Citation(s) in RCA: 3] [Impact Index Per Article: 0.8] [Reference Citation Analysis] [Abstract] [Key Words] [MESH Headings] [Track Full Text] [Download PDF] [Figures] [Journal Information] [Subscribe] [Scholar Register] [Received: 05/24/2021] [Revised: 06/26/2021] [Accepted: 06/28/2021] [Indexed: 11/24/2022] Open
Abstract
Seed transmission is an important factor in the epidemiology of plant pathogens. Geminiviruses are serious pests spread in tropical and subtropical regions. They are transmitted by hemipteran insects, but a few cases of transmission through seeds were recently reported. Here, we investigated the tomato seed transmissibility of the begomovirus tomato yellow leaf curl Sardinia virus (TYLCSV), one of the agents inducing the tomato yellow leaf curl disease, heavily affecting tomato crops in the Mediterranean area. None of the 180 seedlings originating from TYLCSV-infected plants showed any phenotypic alteration typical of virus infection. Moreover, whole viral genomic molecules could not be detected in their cotyledons and true leaves, neither by membrane hybridization nor by rolling-circle amplification followed by PCR, indicating that TYLCSV is not a seed-transmissible pathogen for tomato. Examining the localization of TYLCSV DNA in progenitor plants, we detected the virus genome by PCR in all vegetative and reproductive tissues, but viral genomic and replicative forms were found only in leaves, flowers and fruit flesh, not in seeds and embryos. Closer investigations allowed us to discover for the first time that these embryos were superficially contaminated by TYLCSV DNA but whole genomic molecules were not detectable. Therefore, the inability of TYLCSV genomic molecules to colonize tomato embryos during infection justifies the lack of seed transmissibility observed in this host.
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Affiliation(s)
- Saeid Tabein
- Institute for Sustainable Plant Protection, National Research Council of Italy, Strada delle Cacce, 73, 10135 Torino, Italy; (S.T.); (S.M.); (G.P.A.)
- Department of Plant Protection, Faculty of Agriculture, Shahid Chamran University of Ahvaz, Ahvaz 61349, Iran
| | - Laura Miozzi
- Institute for Sustainable Plant Protection, National Research Council of Italy, Strada delle Cacce, 73, 10135 Torino, Italy; (S.T.); (S.M.); (G.P.A.)
- Correspondence: (L.M.); (E.N.); Tel.: +39-011-3977-942 (L.M.); +39-011-3977-916 (E.N.)
| | - Slavica Matić
- Institute for Sustainable Plant Protection, National Research Council of Italy, Strada delle Cacce, 73, 10135 Torino, Italy; (S.T.); (S.M.); (G.P.A.)
| | - Gian Paolo Accotto
- Institute for Sustainable Plant Protection, National Research Council of Italy, Strada delle Cacce, 73, 10135 Torino, Italy; (S.T.); (S.M.); (G.P.A.)
| | - Emanuela Noris
- Institute for Sustainable Plant Protection, National Research Council of Italy, Strada delle Cacce, 73, 10135 Torino, Italy; (S.T.); (S.M.); (G.P.A.)
- Correspondence: (L.M.); (E.N.); Tel.: +39-011-3977-942 (L.M.); +39-011-3977-916 (E.N.)
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Andreason SA, Olaniyi OG, Gilliard AC, Wadl PA, Williams LH, Jackson DM, Simmons AM, Ling KS. Large-Scale Seedling Grow-Out Experiments Do Not Support Seed Transmission of Sweet Potato Leaf Curl Virus in Sweet Potato. PLANTS 2021; 10:plants10010139. [PMID: 33445460 PMCID: PMC7827154 DOI: 10.3390/plants10010139] [Citation(s) in RCA: 3] [Impact Index Per Article: 0.8] [Reference Citation Analysis] [Abstract] [Key Words] [Track Full Text] [Download PDF] [Figures] [Subscribe] [Scholar Register] [Received: 12/13/2020] [Revised: 01/06/2021] [Accepted: 01/08/2021] [Indexed: 11/25/2022]
Abstract
Sweet potato leaf curl virus (SPLCV) threatens global sweet potato production. SPLCV is transmitted by Bemisia tabaci or via infected vegetative planting materials; however, SPLCV was suggested to be seed transmissible, which is a characteristic that is disputed for geminiviruses. The objective of this study was to revisit the validity of seed transmission of SPLCV in sweet potato. Using large-scale grow-out of sweet potato seedlings from SPLCV-contaminated seeds over 4 consecutive years, approximately 23,034 sweet potato seedlings of 118 genotype entries were evaluated. All seedlings germinating in a greenhouse under insect-proof conditions or in a growth chamber were free of SPLCV; however, a few seedlings grown in an open bench greenhouse lacking insect exclusion tested positive for SPLCV. Inspection of these seedlings revealed that B. tabaci had infiltrated the greenhouse. Therefore, transmission experiments were conducted using B. tabaci MEAM1, demonstrating successful vector transmission of SPLCV to sweet potato. Additionally, tests on contaminated seed coats and germinating cotyledons demonstrated that SPLCV contaminated a high percentage of seed coats collected from infected maternal plants, but SPLCV was never detected in emerging cotyledons. Based on the results of grow-out experiments, seed coat and cotyledon tests, and vector transmission experiments, we conclude that SPLCV is not seed transmitted in sweet potato.
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Identification of Viruses and Viroids Infecting Tomato and Pepper Plants in Vietnam by Metatranscriptomics. Int J Mol Sci 2020; 21:ijms21207565. [PMID: 33066322 PMCID: PMC7593927 DOI: 10.3390/ijms21207565] [Citation(s) in RCA: 12] [Impact Index Per Article: 2.4] [Reference Citation Analysis] [Abstract] [Key Words] [Track Full Text] [Download PDF] [Figures] [Journal Information] [Subscribe] [Scholar Register] [Received: 09/01/2020] [Revised: 09/23/2020] [Accepted: 10/10/2020] [Indexed: 12/25/2022] Open
Abstract
Tomato (Lycopersicum esculentum L.) and pepper (Capsicum annuum L.) plants belonging to the family Solanaceae are cultivated worldwide. The rapid development of next-generation sequencing (NGS) technology facilitates the identification of viruses and viroids infecting plants. In this study, we carried out metatranscriptomics using RNA sequencing followed by bioinformatics analyses to identify viruses and viroids infecting tomato and pepper plants in Vietnam. We prepared a total of 16 libraries, including eight tomato and eight pepper libraries derived from different geographical regions in Vietnam. We identified a total of 602 virus-associated contigs, which were assigned to 18 different virus species belonging to nine different viral genera. We identified 13 different viruses and two viroids infecting tomato plants and 12 viruses and two viroids infecting pepper plants with viruses as dominantly observed pathogens. Our results showed that multiple infection of different viral pathogens was common in both plants. Moreover, geographical region and host plant were two major factors to determine viral populations. Taken together, our results provide the comprehensive overview of viral pathogens infecting two important plants in the family Solanaceae grown in Vietnam.
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