scholarly journals First Report of a Tospovirus Infection of Peanuts in Iran

Plant Disease ◽  
2001 ◽  
Vol 85 (12) ◽  
pp. 1286-1286 ◽  
Author(s):  
A. R. Golnaraghi ◽  
N. Shahraeen ◽  
R. Pourrahim ◽  
Sh. Ghorbani ◽  
Sh. Farzadfar
Keyword(s):  
Chenopodium Quinoa ◽  
Datura Stramonium ◽  
Enzyme Linked Immunosorbent Assay ◽  
Leaf Extracts ◽  
Systemic Necrosis ◽  
First Report ◽  
Severe Stunting ◽  
Gomphrena Globosa ◽  
Golestan Province ◽  
Wilt Virus

During the summer of 2000, severe stunting, mosaic, bud necrosis, and chlorosis symptoms were observed on peanut (Arachis hypogaea cv. Gilan) plants growing in fields in the Golestan Province of Iran. Leaf extracts of peanut plants were infective (mechanical inoculation) causing necrotic local lesions on Chenopodium quinoa, C. amaranticolor, Gomphrena globosa, Phaseolus vulgaris cv. Talash, Vicia faba, and Vigna unguiculata cv. Mashad; systemic chlorotic spots were followed by systemic necrosis in Datura stramonium, D. metel, and Nicotiana rustica; chlorotic and necrotic spots were followed by top necrosis in Glycine max. About 2 weeks after inoculation, the chlorosis followed by stunting and bud necrosis observed in the field were reproduced in A. hypogaea cv. Gilan. Tomato spotted wilt virus (TSWV) was detected in the original peanut plants and in plant species that developed symptoms after inoculation with extracts from peanut plants, when analyzed by double-antibody sandwich enzyme-linked immunosorbent assay using TSWV-specific antisera (polyclonal antibody As-0526 and As-0580, DSMZ, Braunschweig, Germany). TSWV is one of the most important viruses in the world (2) and has been reported on potato (3) and tomato (1) in Iran. To our knowledge, this is the first report of TSWV infection of peanut in Iran. References: (1) K. Bananej et al. Iran. J. Plant Pathol. 34:30, 1998. (2) R. A. Mumford et al. Ann. Appl. Biol. 128:159, 1996. (3) R. Pourrahim et al. Plant Dis. 85:442, 2001.

scholarly journals First Report of Tomato Spotted Wilt Virus on Potatoes in Iran

Plant Disease ◽  
2001 ◽  
Vol 85 (4) ◽  
pp. 442-442 ◽  
Author(s):  
R. Pourrahim ◽  
Sh. Farzadfar ◽  
A. A. Moini ◽  
N. Shahraeen ◽  
A. Ahoonmanesh
Keyword(s):  
Tomato Spotted Wilt Virus ◽  
Chenopodium Quinoa ◽  
Plant Viruses ◽  
Thrips Tabaci ◽  
Enzyme Linked Immunosorbent Assay ◽  
Leaf Extracts ◽  
Systemic Necrosis ◽  
First Report ◽  
Tomato Spotted Wilt ◽  
Wilt Virus

Severe leaf and stem necrosis before flowering was observed in potato (Solanum tuberosum) fields of Firouzkoh Province, Iran, during the summer of 1998. Infected plants died before the end of the growing season. Necrosis was more severe in cv. Agria than in cvs. Ajaxs and Arinda. A high population of Thrips tabaci was observed in August and September. Tomato spotted wilt virus (TSWV) (1) was detected in affected potatoes by using specific TSWV-IgG (from Bioreba) in double-antibody sandwich enzyme linked immunosorbent assay and by indicator plant reactions. Mechanical inoculation of indicator plants with leaf extracts of symptomatic potatoes produce necrotic local lesions in Chenopodium quinoa, C. amaranticolor, Gomphrena globosa, Vicia faba, Vigna sinensis, Phaseolus aureus var. Gohar, P. vulgaris, and Petunia hybrida. The virus caused systemic necrosis in Capsicum frutescens, Datura stramonium, D. metel, Nicotiana glutinosa, N. rustica, and Trapaeolum majus, preceded by systemic chlorotic spots. TSWV was reported from ornamental crops in Tehran and Absard areas near to Firouzkoh province (2), but this is the first report of TSWV occurrence on potatoes in Iran. References: (1) T. S. Ie. Descriptions of Plant Viruses. No. 39, 1970. (2) A. A. Moeini, et al. Iran. J. Plant Pathol. (In press.)

scholarly journals First Report of Tomato spotted wilt virus on Soybean in Iran

Plant Disease ◽  
2001 ◽  
Vol 85 (12) ◽  
pp. 1290-1290 ◽  
Author(s):  
A. R. Golnaraghi ◽  
N. Shahraeen ◽  
R. Pourrahim ◽  
Sh. Ghorbani ◽  
Sh. Farzadfar
Keyword(s):  
Glycine Max ◽  
Tomato Spotted Wilt Virus ◽  
Chenopodium Quinoa ◽  
Datura Stramonium ◽  
Enzyme Linked Immunosorbent Assay ◽  
Mechanical Inoculation ◽  
First Report ◽  
Tomato Spotted Wilt ◽  
Soybean Leaves ◽  
Wilt Virus

During the summers of 1999 and 2000, 3,110 soybean (Glycine max) leaf samples were randomly collected from soybean fields in the Ardebil, Goletan, Khuzestan, Lorestan, and Mazandaran provinces of Iran. Tomato spotted wilt virus (TSWV) was detected in leaf samples by TSWV-specific polyclonal antibody (As-0526 and As-0580, DSMZ, Braunschweig, Germany) in double-antibody sandwich enzyme-linked immunosorbent assay (DAS-ELISA). Mechanical inoculation of 26 plant species (10 plants per species) and cultivars with extracts of positive leaf samples produced necrotic local lesions in Beta vulgaris, Chenopodium quinoa, C. amaranticolor, Gomphrena globosa, Phaseolus vulgaris cv. Talash, Vicia faba, and Vigna unguiculata cv. Mashad; produced systemic chlorosis followed by necrosis in Datura stramonium, D. metel, Nicotiana rustica, N. tabacum cv. Samsun, N. glutinosa, N. bentamiana, and Glycine max cv. Hill; and produced chlorosis, stunting, and bud necrosis in Arachis hypogaea (peanut). Plants developing these symptoms following mechanical inoculation with extracts from original soybean leaves were positive in ELISA for TSWV. ELISA results indicate that the overall incidence of TSWV on soybean in the five provinces was 5.4%. TSWV has been reported in potato (2) and tomato (1) from Iran, but to our knowledge, this is the first report of the occurrence of TSWV on soybean in Iran. References: (1) K. Bananej et al. Iran. J. Plant Pathol. 34:30, 1998. (2) R. Pourrahim et al. Plant Dis. 85:442, 2001.

scholarly journals First Report of Tobacco streak virus Infecting Safflower (Carthamus tinctorius) in Maharashtra, India

Plant Disease ◽  
2003 ◽  
Vol 87 (11) ◽  
pp. 1396-1396 ◽  
Author(s):  
S. Chander Rao ◽  
R. D. V. J. Prasada Rao ◽  
V. Manoj Kumar ◽  
Divya S. Raman ◽  
M. A. Raoof ◽  
...  
Keyword(s):  
Carthamus Tinctorius ◽  
Tobacco Streak Virus ◽  
Enzyme Linked Immunosorbent Assay ◽  
Streak Virus ◽  
Leaf Extracts ◽  
Systemic Necrosis ◽  
First Report ◽  
Veinal Necrosis ◽  
Terminal Bud ◽  
Leaf Necrosis

Safflower, Carthamus tinctorius L. (Asteraceae), is extensively cultivated in India, China, and other parts of Asia for edible oil, dyeing agent, and its medicinal value. In 2003, safflower entry (NARI-6) in the All-India Coordinated Research Project on Oilseeds (Safflower) grown in the experimental fields of M/s Syngenta India Ltd., Aurangabad (Maharashtra State, India) exhibited symptoms of veinal and leaf necrosis, necrotic streaks on the stem, necrosis of the terminal bud, and ultimately plant death. The disease was attributed to Tobacco streak virus (TSV) because sunflower growing adjacent to safflower showed similar symptoms caused by TSV (1). Mechanical inoculations of sap from symptomatic safflower leaves caused typical symptoms of TSV (local, irregular, necrotic rings, veinal necrosis, and systemic veinal necrosis) on Vigna unguiculata (L.) Walp. cv. C-152 and Phaseolus vulgaris (L.) cv. Topcrop, and symptoms of local, necrotic lesions, veinal necrosis, and systemic necrosis of leaf and growing bud on Arachis hypogaea L. cv. JL-24. Sap-inoculated safflower cv. Manjeera showed chlorotic and necrotic local lesions followed by systemic leaf necrosis, leading to necrosis and death of the terminal bud. Safflower cvs. A-1, BIP-2, Co-1, and Bheema (10 plants of each cultivar) inoculated with sap from safflower plants showing typical TSV symptoms did not show any visible symptoms except stunting, but six to nine plants of each cultivar tested positive for TSV using enzyme-linked immunosorbent assay (ELISA) tests. In direct antigen coating-ELISA, the virus reacted positively with antiserum produced to an isolate of TSV from peanut (2) and to antiserum to TSV (ATCC-PVAS 276 for Datura stramonium), but did not react to peanut bud necrosis tospovirus antiserum. Examination of leaf extracts using leaf-dips and immunosorbent electron microscopy with the antiserum of TSV-peanut isolate showed isometric particles resembling those in the genus Ilarvirus. To our knowledge, this is the first report of an isolate of Tobacco streak virus infecting safflower. References: (1) R. D. V. J. Prasada Rao et al. J. Oilseeds Res. 17:400, 2000. (2) A. S. Reddy et al. Plant Dis. 86:173, 2002.

scholarly journals First Report of Groundnut bud necrosis virus in Iran

Plant Disease ◽  
2002 ◽  
Vol 86 (5) ◽  
pp. 561-561 ◽  
Author(s):  
A. R. Golnaraghi ◽  
R. Pourrahim ◽  
N. Shahraeen ◽  
Sh. Farzadfar
Keyword(s):  
Arachis Hypogaea ◽  
Polyclonal Antibody ◽  
Impatiens Necrotic Spot Virus ◽  
Enzyme Linked Immunosorbent Assay ◽  
Necrosis Virus ◽  
Weak Reaction ◽  
First Report ◽  
Golestan Province ◽  
Groundnut Bud Necrosis Virus ◽  
Wilt Virus

During the summer of 2001, mosaic, mottle, ring mosaic, stunting, and bud necrosis were observed in peanut fields (Arachis hypogaea cv. Gilan) in the Golestan Province of Iran. Mechanical inoculation of these samples caused necrotic local lesions on Vigna unguiculata cv. Mashad, necrosis on Nicotiana benthamiana and N. rustica, and mosaic followed by bud necrosis on Arachis hypogaea cv. NC2. Using triple-antibody sandwich enzyme-linked immunosorbent assay (TAS-ELISA) and polyclonal (As) combined with monoclonal antibodies (MAbs) produced by DSMZ (Braunschweig, Germany), the samples were tested for presence of impatiens necrotic spot virus (INSV) (As-0115, MAb-0117-5E4), tomato spotted wilt virus (TSWV) (As-0105, MAb-0116-2B6, MAb-0106-4F2), and groundnut bud necrosis virus (GBNV) (As-0118, MAb-0226-1B4). The samples also were checked by TSWV polyclonal antibody (As-0526, As-0580, DSMZ). ELISA results showed leaf samples and inoculated indicator plants reacted positively to GBNV antibodies. Also a weak reaction was observed with TSWV-polyclonal antibody. However no reaction was detected using the INSV and TSWV-MAbs. GBNV is a member of the Tospovirus genus and has serological relationship with TSWV (1). To our knowledge, this is the first report of GBNV occurrence in Iran. Reference: (1) C. Heinze et al. Phytopathology 85:683-690, 1995.

scholarly journals First Report of Cucumber mosaic virus in Desert Rose in Taiwan

Plant Disease ◽  
2012 ◽  
Vol 96 (4) ◽  
pp. 593-593 ◽  
Author(s):  
Y. K. Chen ◽  
Y. S. Chang ◽  
Y. W. Lin ◽  
M. Y. Wu
Keyword(s):  
Cucumber Mosaic Virus ◽  
Mosaic Virus ◽  
Chenopodium Quinoa ◽  
Rabbit Antiserum ◽  
Serological Tests ◽  
Reading Frame ◽  
First Report ◽  
Reverse Transcription Pcr ◽  
Wilt Virus ◽  
Line Patterns

Desert rose (Adenium obesum (Forssk.) Roem. & Schult, family Apocynaceae) is native to southeastern Africa, and is a perennial potted ornamental with colorful flowers that are popular in Taiwan. Symptoms of mosaic and chlorotic ringspots and line patterns on leaves were observed in July 2010, on all eight plants in a private garden in Potzu, Chiayi, Taiwan. Spherical virus particles with a diameter of approximately 28 nm were observed in crude sap prepared from symptomatic leaves. Virus culture was established by successive local lesion isolation in Chenopodium quinoa and was maintained in the systemic host Nicotiana tabacum van Hicks. The virus was mechanically transmissible to indicator plants and induced symptoms similar to those incited by Cucumber mosaic virus (CMV). Observed symptoms included local lesions on inoculated leaves of C. amaranticolor and systemic mosaic in Cucumis sativus, Lycopersicon esculentum, N. benthamiana, N. glutinosa, and N. rustica. On N. tabacum, necrotic ringspots developed on inoculated leaves followed by systemic mosaic. Serological tests using ELISA assays and western blotting indicated that the virus reacted positively to a rabbit antiserum prepared to CMV (4). Amplicons of an expected size (1.1 kb) were obtained in reverse transcription-PCR with primers specific to the 3′-half of CMV RNA 3 (3) using total RNA extracted from infected desert rose and N. tabacum. The amplified cDNA fragment was cloned and sequenced (GenBank Accession No. AB667971). Nucleotide sequences of the coat protein open reading frame (CP ORF) (657 nt) had 92 to 96% and 76 to 77% sequence identity to those of CMV in subgroups I (GenBank Accession Nos. NC_001440, D00385, M57602, D28780, and AB008777) and II (GenBank Accession Nos. L15336, AF127976, AF198103, and M21464), respectively. Desert roses infected by Tomato spotted wilt virus (TSWV) (1) and CMV (2) have been reported previously. In spite of the plants showing mosaic symptoms similar to that caused by CMV (2) and chlorotic ringspots and line patterns caused by TSWV (1), only CMV was detected in and isolated from these infected desert roses. However, the possibility of mixed infection of CMV and other viruses were not excluded in this research. To our knowledge, this is the first report of CMV infection in desert rose plants occurring in Taiwan. References: (1) S. Adkins and C. A. Baker. Plant Dis. 89:526, 2005. (2) C. A. Baker et al. Plant Dis. 87:1007, 2003. (3) Y. K. Chen et al. Arch. Virol. 146:1631, 2001. (4) Y. K. Chen and C. C. Yang. Plant Dis. 89:529, 2005.

scholarly journals First Report of Tomato spotted wilt virus in Blackberry Lily in North America

Plant Disease ◽  
2003 ◽  
Vol 87 (1) ◽  
pp. 102-102 ◽  
Author(s):  
S. Adkins ◽  
L. Breman ◽  
C. A. Baker ◽  
S. Wilson
Keyword(s):  
North America ◽  
Tomato Spotted Wilt Virus ◽  
Amino Acid Sequences ◽  
South Florida ◽  
N Gene ◽  
Enzyme Linked Immunosorbent Assay ◽  
Rt Pcr ◽  
First Report ◽  
Tomato Spotted Wilt ◽  
Wilt Virus

Blackberry lily (Belamcanda chinensis (L.) DC.) is an herbaceous perennial in the Iridaceae characterized by purple-spotted orange flowers followed by persistent clusters of black fruit. In July 2002, virus-like symptoms including chlorotic ringspots and ring patterns were observed on blackberry lily leaves on 2 of 10 plants in a south Florida ornamental demonstration garden. Inclusion body morphology suggested the presence of a Tospovirus. Tomato spotted wilt virus (TSWV) was specifically identified by serological testing using enzyme-linked immunosorbent assay (Agdia, Elkhart, IN). Sequence analysis of a nucleocapsid (N) protein gene fragment amplified by reverse transcription-polymerase chain reaction (RT-PCR) with primers TSWV723 and TSWV722 (1) from total RNA confirmed the diagnosis. Nucleotide and deduced amino acid sequences of a 579 base pair region of the RT-PCR product were 95 to 99% and 95 to 100% identical, respectively, to TSWV N-gene sequences in GenBank. Since these 2-year-old plants were grown on-site from seed, they were likely inoculated by thrips from a nearby source. Together with a previous observation of TSWV in north Florida nursery stock (L. Breman, unpublished), this represents, to our knowledge, the first report of TSWV infection of blackberry lily in North America although TSWV was observed in plants of this species in Japan 25 years ago (2). References: (1) S. Adkins, and E. N. Rosskopf. Plant Dis. 86:1310, 2002. (2) T. Yamamoto and K.-I. Ohata. Bull. Shikoku Agric. Exp. Stn. 30:39, 1977.

scholarly journals First Report of Cucumber Mosaic Virus in Eryngium amethystinum, Canna spp., and Aquilegia hybrids in Ohio

Plant Disease ◽  
1997 ◽  
Vol 81 (11) ◽  
pp. 1331-1331 ◽  
Author(s):  
J. R. Fisher ◽  
M.-C. Sanchez-Cuevas ◽  
S. T. Nameth ◽  
V. L. Woods ◽  
C. W. Ellett
Keyword(s):  
Cucumber Mosaic Virus ◽  
Mosaic Virus ◽  
Plant Viruses ◽  
Early Summer ◽  
Reservoir Host ◽  
Enzyme Linked Immunosorbent Assay ◽  
Herbaceous Plant ◽  
First Report ◽  
Severe Stunting ◽  
Banding Profile

Eryngium amethystinum (amethyst sea holly) is a herbaceous plant commonly grown as an ornamental perennial in U.S.D.A. hardiness zones 3 to 8. The plant thrives in dry areas with infertile soils and the flowers are often used in dried floral arrangements. Canna spp. (Canna), soft perennials (U.S.D.A. zone 9 and above), are becoming popular flowering plants because of their bright flowers and spectacular foliage. There are a variety of species that fall under the heading Canna spp., of which the most popular are C. glauca, C. indica, C. edulis, and C. iridiflora. Hybrids of Aquilegia (garden columbine), a hardy perennial (U.S.D.A. zones 3 to 9), flower in late spring through early summer. The genus is made up of a wide variety of cultivars. E. amethystinum exhibiting severe mosaic, yellowing, and stunting, along with Canna plants exhibiting severe stunting, chlorotic and distorted foliage, and mosaic, and garden columbine plants exhibiting stunting, leaf curl, chlorosis, and mosaic, collected from commercial plantings throughout the central Ohio area, were analyzed for the presence of virus infection with viral-associated, double-stranded RNA (dsRNA) analysis. dsRNA analysis resulted in a banding profile typical of that seen with members of the cucumovirus family of plant viruses. Plants positive for cucumovurus-like dsRNA were tested with a direct antibody sandwich enzyme-linked immunosorbent assay (ELISA). ELISA results confirmed the presence of cucumber mosaic virus (CMV) in all symptomatic plants tested. No evidence of dsRNA or CMV was found in any of the asymptomatic plants tested. Because all of these hosts are common in the perennial garden, they could serve as a reservoir host of CMV for other plants in the garden. This is the first report of CMV in E. amethystinum, Canna spp., and Aquilegia hybrids in Ohio.

scholarly journals First Report of Beet soilborne virus in Poland

Plant Disease ◽  
2006 ◽  
Vol 90 (1) ◽  
pp. 112-112 ◽  
Author(s):  
N. Borodynko ◽  
B. Hasiów ◽  
H. Pospieszny
Keyword(s):  
Amino Acid ◽  
Amino Acid Sequence ◽  
Sugar Beet ◽  
Amino Acid Sequence Identity ◽  
Chenopodium Quinoa ◽  
Enzyme Linked Immunosorbent Assay ◽  
First Report ◽  
Sequence Identity ◽  
Pcr Products ◽  
Soilborne Viruses

Beet necrotic yellow vein virus (BNYVV), the casual agent of rhizomania disease, was identified in sugar beet plants from several fields in the Wielkopolska Region of Poland (1). In greenhouse studies, sugar beets were grown in the soil from one of these fields to bait soilborne viruses. Of 200 sugar beet plants, three developed symptoms of vein clearing, vein banding, and mosaic. Crude sap from symptomatic plants was used for mechanical inoculation of various plants species. In Chenopodium quinoa, C. amaranticolor, and Tetragonia expansa only local lesions were observed. Electron microscope examination of negatively stained leaf-dip preparations from symptomatic sugar beet plants showed a mixture of rod-shape particles from 70 to 400 nm long. Using double-antibody sandwich enzyme-linked immunosorbent assay tests, two symptomatic sugar beet plants gave positive reactions with antiserum against BNYVV (Bio-Rad, Hercules, CA) and a third plant gave a positive reaction with antisera against BNYVV and Beet soilborne virus (BSBV). Total RNA was extracted from roots and leaves of the symptomatic plants and used in a multiplex reverse transcription-polymerase chain reaction (mRT-PCR) assay. Specific primers were designed to amplify a fragment of the RNA1 for BSBV and RNA2 for BNYVV and Beet virus Q (BVQ) (2). Two mRT-PCR products amplified with the primers specific to BNYVV and BSBV were obtained and sequenced. A 274-nt amplicon sequence (GenBank Accession No. DQ012156) had 98% nucleotide sequence identity with the German BNYVV isolate F75 (GenBank Accession No. AF19754) and a 376-nt amplicon sequence (GenBank Accession No. AY999690) had 98% nucleotide and 98% amino acid sequence identity with the German BSBV isolate (GenBank Accession No. Z97873). The Polish BSBV isolate had 88% nucleotide and 62% amino acid sequence identity with BVQ, another pomovirus (GenBank Accession No. AJ 223596 formerly known as serotype Wierthe of BSBV (2). In 2005, mRT-PCR was used on samples collected from two fields of the Wielkopolska Region. Of 15 tested sugar beet plants, 12 gave positive reactions with primers specific for BSBV and nine with primers specific to BNYVV. To our knowledge, this is first report of BSBV in Poland. In Europe, BSBV was previously reported in England, the Netherlands, Belgium, Sweden, Germany, France, and Finland (2,3). References: (1) M. Jezewska and J. Piszczek. Phytopathol. Polonica, 21:165, 2001. (2) A. Maunier et al. Appl. Environ. Microbiol. 69:2356, 2003. (3) C. M. Rush and G. B. Heidel. Plant Dis. 79:868, 1995.

scholarly journals First Report of Pepino mosaic virus on Tomato in Spain

Plant Disease ◽  
2001 ◽  
Vol 85 (12) ◽  
pp. 1292-1292 ◽  
Author(s):  
C. Jordá ◽  
A. Lázaro Pérez ◽  
P. Martínez-Culebras ◽  
P. Abad ◽  
A. Lacasa ◽  
...  
Keyword(s):  
Mosaic Virus ◽  
Canary Islands ◽  
Plant Protection ◽  
Polyclonal Antibodies ◽  
Datura Stramonium ◽  
Enzyme Linked Immunosorbent Assay ◽  
Chenopodium Amaranticolor ◽  
Pepino Mosaic Virus ◽  
Tomato Plants ◽  
First Report

At the beginning of 2000, a damaging disease developed on protected tomato (Lycopersicon esculentum) crops grown in polyethylene greenhouses in different regions of Spain. Production losses were estimated at 15 to 80%. The tomato plants showed a variety of symptoms. The most common symptoms were leaf distortion, chlorosis, and mosaic. Some plants showed a dark green mosaic and bubbling of the leaf surface. Green striations were also observed on the stem and sepals. Most of the diseased plants had discolored fruits. Symptoms decreased as environmental temperature increased. The involvement of Pepino mosaic virus (PepMV) was suspected. To identify the etiological agent, ≈500 symptomatic tomato plants were collected from several locations in Alicante, Murcia, Almeria and the Canary Islands. Flexuous viral particles 510 nm long were observed by transmission electron microscopy, suggesting the presence of a potexvirus in the tissue extracts analyzed. All samples were tested by ELISA (enzyme-linked immunosorbent assay), using polyclonal antibodies to Narcissus mosaic virus (Adgen, Auchincriuve, Scotland), a virus serologically related to PepMV, and two antisera specific to PepMV (Adgen, Scotland and DMSZ, Braunschweig, Germany). PepMV was detected in 35% of the samples. Like PepMV, the virus infected (as confirmed by ELISA) greenhouse-grown Datura stramonium, Nicandra physalodes, Nicotiana benthamiana, N. clevelandii, Solanum tuberosum, and Vigna sinensis and did not infect Capsicum anuum, Cucumis sativus, Chenopodium amaranticolor, C. quinoa, Petunia × hybrida, Phaseolus vulgaris, Physalis floridana, N. glutinosa, N. rustica, or N. tabacum. The virus did infect Gomphrena globosa, which normally is not infected by PepMV. The first report of PepMV was on pepino (Solanum muricatum) in Peru in 1974 (1), but this virus has been recently reported in the Netherlands, England, Germany, and France on protected tomato crops (2). To our knowledge, this is the first report of PepMV in Spain, including the Canary Islands. References: (1) R. A. C. Jones et al. Ann. Appl. Biol. 94:61, 1980. (2) European and Mediterranean Plant Protection Organisation (EPPO). Alert List Viruses. On-line publication/2000/003.

scholarly journals First Report of Tomato spotted wilt virus in Soybean (Glycine max) in Georgia

Plant Disease ◽  
2006 ◽  
Vol 90 (4) ◽  
pp. 524-524 ◽  
Author(s):  
C. Nischwitz ◽  
S. W. Mullis ◽  
R. D. Gitaitis ◽  
A. S. Csinos
Keyword(s):  
Glycine Max ◽  
Large Scale ◽  
Tomato Spotted Wilt Virus ◽  
The United States ◽  
Enzyme Linked Immunosorbent Assay ◽  
First Report ◽  
Nucleocapsid Gene ◽  
Fta Cards ◽  
Tomato Spotted Wilt ◽  
Wilt Virus

Tomato spotted wilt virus (TSWV) is a member of the family Bunyaviridae and has a wide host range including important crops such as tomato, pepper, tobacco, peanut, and onion. In areas of Georgia, soybean (Glycine max) is double cropped between two onion crops and as a rotation crop with peanuts. Soybeans do not show any TSWV symptoms, and therefore, have not been tested on a large scale for the virus. However, because symptomless weed and crop plants provide a reservoir for TSWV and the thrips vectors (2), a survey was conducted during the summer of 2005 to evaluate the occurrence of TSWV in soybean. The survey took place in seven counties in southern Georgia with field sizes ranging between 0.4 and 20 ha (1 and 50 acres). Soybean cultivars included Haskell, DP7220, DP6770, Pioneer 97B52, and Vigoro V622NRR. Of 848 randomly selected plants tested using the double-antibody sandwich enzyme-linked immunosorbent assay (DAS-ELISA) (Agdia, Inc., Elkhart, IN), 6.6% tested positive for TSWV. Plants testing positive ranged from seedling to the pod-setting stages. Leaves and roots of several plants tested positive, indicating a systemic infection. Soybean plants testing positive using ELISA were blotted onto FTA cards (Whatman Inc., Brentford, UK) to bind viral RNA for preservation, and the blotted samples were processed according to the manufacturer's protocol. Reverse transcription-polymerase chain reaction using punch-outs from the FTA cards and TSWV nucleocapsid gene specific forward and reverse primers (5′-TTAAGCAAGTTCTGTGAG-3′ and 5′-ATGTCTAAGGTTAAGCTC-3′), respectively (4), confirmed the identity of TSWV. TSWV has been found in soybean in other parts of the world (1) but has only been reported in the United States in a survey from Tennessee (3). To our knowledge, this is the first report of the occurrence of TSWV in soybean in Georgia. The role soybean plays as a reservoir or green bridge for thrips and TSWV is currently unknown. References: (1) A. R. Golnaraghi et al. Plant Dis. 88:1069, 2004. (2) R. L. Groves et al. Phytopathology 91:891, 2001. (3) B. S. Kennedy and B. B. Reddick. Soybean Genet. Newsl. 22:197, 1995. (4) H. R. Pappu et al. Tob. Sci. 40:74, 1996.

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