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A New Natural Host of Lisianthus necrosis virus in Taiwan.

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Lisianthus necrosis virus (LNV) was first identified as a fungus-borne virus that induced systemic necrosis in lisianthus (Eustoma russellianum) in Japan (2). In Taiwan, LNV causes systemic bright yellow chlorosis followed by necrosis in lisianthus (1). The disease was able to spread through the

Tomato chocolate spot virus, a member of a new torradovirus species that causes a necrosis-associated disease of tomato in Guatemala.

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Tomatoes in Guatemala have been affected by a new disease, locally known as "mancha de chocolate" (chocolate spot). The disease is characterized by distinct necrotic spots on leaves, stems and petioles that eventually expand and cause a dieback of apical tissues. Samples from symptomatic plants

First Report of Nemesia ring necrosis virus in North America in Ornamental Plants from California.

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During the last several years, two California propagators have detected what was believed to be the tymovirus Scrophularia mottle virus (ScrMV) in several ornamental plant species on the basis of enzyme-linked immunosorbent assay (ELISA) using a ScrMV antibody system. Symptoms were generally mild,

An Outbreak of a Necrosis Disease of Tomato in California in 2008 was Caused by a New Ilarvirus Species Related to Parietaria mottle virus.

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During the 2008 early-summer growing season, virus-like necrosis symptoms, most similar to those induced by Tobacco streak virus (TSV), were observed in leaves, stems, and petioles of processing tomato plants in the Central Valley of California. Symptoms were observed in numerous fields in Merced,

First Report of Chrysanthemum stem necrosis virus on Russell Prairie Gentian in Brazil.

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In November 2012, plants of Russell prairie gentian (Eustoma grandiflorum, Lisianthus russellianus) were collected from a commercial greenhouse in Atibaia, SP, Brazil, displaying necrotic spots on leaves and necrosis on stems, followed by generalized systemic necrosis. Disease symptom incidence was

[Observation of cells tolerant of tobacco mosaic virus in virus-induced local lesions in Datura stramonium L. leaves].

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Ultrastructural examination of tobacco mosaic virus-induced local lesions developing in leaves of Datura stramonium plants demonstrated that, in the central area of the lesions, the cell response to viral invasion was not uniform. Most cells exhibited an acute hypersensitive reaction and underwent

Fumonisin B1 from the fungus Fusarium moniliforme causes contact toxicity in plants: evidence from studies with biosynthetically labeled toxin.

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Fumonisin B1 (FB1) is the most abundant of a series of sphingosine analog mycotoxins produced by the fungus Fusarium moniliforme, a ubiquitous contaminant of stored corn (maize) worldwide. FB1 exhibits a variety of biological activities including phytotoxicity, which is of particular interest for

[Serious plant poisonings in Switzerland 1966-1994. Case analysis from the Swiss Toxicology Information Center].

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OBJECTIVE To analyze the types, frequency and severity of plant poisonings in Switzerland over 29 years. METHODS Retrospective analysis of severe poisonings with toxic plants reported to the Swiss Toxicological Information Center (STIC). Assessment of the causality, severity of symptoms and the

First Report of Tomato spotted wilt virus on Soybean in Iran.

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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

First Report of Solanum sarrachoides (Hairy Nightshade) as an Important Host of Potato leafroll virus.

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Potato leafroll virus (PLRV) (genus Polerovirus, family Luteoviridae) is of great economic importance. It has a very narrow host range consisting of only 21 known species, 14 of which are Solanaceae. Ten aphid species transmit PLRV in a persistent manner, but the green peach aphid (Myzus persicae

First Report of Tomato Spotted Wilt Virus on Potatoes in Iran.

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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

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

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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

A Closterovirus (Family: Closteroviridae) Isolated from Tobacco Crops in Northern Greece (Macedonia).

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In 1997, viruslike symptoms similar to those caused by potato potyvirus Y (PVY) were observed in tobacco (Nicotiana tabacum ) plants of the cv. Basmas in the area of Drama (Macedonia) in northern Greece. Diseased plants showed vein clearing and necrosis of the petioles and main veins, and were

First Report of a Tospovirus Infection of Peanuts in Iran.

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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

First Report of Broad bean wilt virus 2 in Echinacea purpurea in China.

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Field-grown Echinacea purpurea plants showing necrosis, leaf roll, yellow mosaic, and mosaic symptoms in leaves were collected in June 2010 in Huairou, Beijing, China. ELISAs of extracts of four samples showed that one sample with mosaic symptoms had a positive reaction with Broad bean wilt virus 2

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