blister/kartafla

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Enhanced resistance to blister blight in transgenic tea (Camellia sinensis [L.] O. Kuntze) by overexpression of class I chitinase gene from potato (Solanum tuberosum).

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Tea is the second most consumed beverage in the world. A crop loss of up to 43 % has been reported due to blister blight disease of tea caused by a fungus, Exobasidium vexans. Thus, it directly affects the tea industry qualitatively and quantitatively. Solanum tuberosum class I chitinase gene

First Confirmed Report of Powdery Scab Caused by Spongospora subterranea f. sp. subterranea on Potato in Sri Lanka.

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White, wart-like outgrowths on roots and stolons - root galls - and blisters and pustules on tubers (lesions) are characteristic symptoms of the potato powdery scab disease caused by Spongospora subterranea (Wallr.) f. sp. subterranea. In Sri Lanka, potato is a major cash crop primarily in two

Pear blister canker viroid is a member of the apple scar skin subgroup (apscaviroids) and also has sequence homology with viroids from other subgroups.

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The sequence of pear blister canker viroid (PBCVd), the putative causal agent of pear blister canker (PBC) disease, has been determined. PBCVd consists of a single-stranded circular RNA of 315 nucleotide residues which assumes a branched conformation when it is folded in the model of lowest free

First Report of Occurrence of Potato Tuber Necrotic Ringspot Disease in Greece.

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Potato tuber necrotic ringspot disease (PTNRD), caused by potato Y potyvirus isolate NTN (PVYNTN) of the N virus strain group, was first described in Hungary in 1980. It has spread throughout Europe, with the most recent reports from Portugal and Italy in 1997 to 1998 (1). Superficial necrotic

Molecular characterization and field survey of Iranian potato virus X isolates.

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Six hundred and one symptomatic potato samples were collected from nine provinces in Iran. Screening by double-antibody sandwich enzyme linked immunosorbent assay using a potato virus X (PVX) together with a few potyviruses polyclonal antibodies, produced positive reactions in 4.3 % of samples

Energy substrates for flight in the blister beetle Decapotoma lunata (Meloidae)

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We investigated the substrates for flight in the blister beetle Decapotoma lunata by (a) establishing the patterns of maximum activities of enzymes of various metabolic pathways in the flight muscles, (b) measuring the respiratory rates of flight muscle mitochondria with various substrates and (c)

Optimizing In vitro Culture Conditions for the Biotrophic Fungi Exobasidium vexans Through Response Surface Methodology.

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The blister blight disease caused by the fungus, Exobasidium vexans has serious implications on the quality of tea production. The disease however, has been poorly studied and hence there is very limited information on the pathogen and as such the pathogenesis of blister blight infection. One

Chronic nonhealing ulcer of the right thumb with multiple subcutaneous nodules.

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A 60-year-old man presented with a 3-month history of nonhealing ulcer over the tip of his right thumb. The ulcer started as a blister over the tip of the thumb that later ruptured and spread proximally to cover the whole pulp area of the thumb. There was no history of trauma, fever, weight loss, or

First Report of Seedling Blight of Eastern Poison Ivy (Toxicodendron radicans) by Colletotrichum fioriniae in Virginia.

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Colletotrichum fioriniae is a member of the large cosmopolitan C. acutatum species complex (2). Known agricultural hosts of C. acutatum include apple, European blueberry, grape, olive, papaya, and strawberry (2). In contrast, the life history of C. fioriniae ranges from an epizootic of certain scale

First Report of Stalk Rot Disease of Sugarcane Caused by Phaeocytostroma sacchari in Mexico.

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In April 2009 and 2010, severe symptoms of stalk rot of sugarcane (Saccharum officinarum L.) plants cvs. MEX-79-431, MEX-69-749, and RB-73-9735 were observed in commercials fields located in southeast Michoacan state, Mexico. The diseased plants exhibited complete discoloration of foliage, ascendant

Characterization of Pin m III cDNA in western white pine.

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Maximum accumulation of Pin m III protein in western white pine (Pinus monticola Dougl. ex D. Don) needles occurred during the winter months. To characterize Pin m III, an expression cDNA library from poly(A)+ mRNA of needles was immunoscreened and the full length cDNA was cloned. An open reading

Virus diseases in the tobacco fields of Guilan and Western Azerbaijan provinces of Iran.

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Tobacco (Nicotiana tabacum L.) is one of the important industrial plants in Iran. Viruses as an important group of plant pathogens cause many losses on the quality and quantity of tobacco crop. There was few information on the types of plant viruses infecting the tobacco fields of Guilan and almost

First Report of Gummosis Disease of Japanese Apricot Caused by Botryosphaeria dothidea in Taiwan.

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Japanese apricot (Prunus mume Sieb. et Zucc.) is an economically important fruit crop grown on more than 10,000 ha in Taiwan. During May 2008, twigs of Japanese apricot trees in the commercial farms of Renai Region (Nantou County) showed symptoms of gummosis disease, with 12 to 18% of the trees

Characterization of tomato yellow vein streak virus, a begomovirus from Brazil.

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Tomato yellow vein streak virus (ToYVSV) is a tentative begomovirus (Family Geminiviridae) species that seriously affects tomato and potato production in Brazil. Here, we have determined the genomic and biological characteristics of a ToYVSV isolate (Ba3) from a potato plant sampled in Rio Grande do

A novel multiplex RT-PCR probe capture hybridization (RT-PCR-ELISA) for simultaneous detection of six viroids in four genera: Apscaviroid, Hostuviroid, Pelamoviroid, and Pospiviroid.

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A rapid and sensitive assay was developed for the detection and identification of viroids by standard or multiplex reverse transcription-polymerase chain reaction (RT-PCR)-probe capture hybridization (RT-PCR-ELISA). The assay was applied successfully for the detection and identification of the

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