catharanthus/nekros

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[Raynaud's phenomenon and finger necrosis after treatment of ovarian seminoma with bleomycin, vinblastine and 5-fluorouracil].

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Bleomycin is sometimes at the origin of a Raynaud's phenomenon (RP). From the literature, there does not seem to exist a dose-dependent relationship. The phenomenon occurs early or late and often is resistant to various medications. The possible physiopathological mechanisms are: direct vascular

Antifertility efficacy of Catharanthus roseus Linn: a biochemical and histological study.

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Oral administration of Catharanthus roseus Linn, leaf extract caused widespread testicular necrosis, hyalinization of tubules and Sertoli cell-only-Syndrome. Biochemical studies revealing notable reduction in glycogen and fructose levels in reproductive tissues support the histological observations

First Report of Phytoplasma Infection in Freesia Plant.

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Disease symptoms including leaf chlorotic and necrotic spots and stripes resembling freesia leaf necrosis (disease of unknown etiology [2]) were observed in freesia (Freesia × hybrida Klatt.) plants (cvs. Aladyn, Blue Lady, Cortine, Gompy, and White Rapid) naturally infected with Freesia mosaic

First Report of Bacterial Leaf Scorch Caused by Xylella fastidiosa on Southern Highbush Blueberry in Florida.

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In May of 2008, samples of southern highbush blueberry (interspecific Vaccinium corymbosum hybrids) exhibiting marginal leaf necrosis were collected at a farm in Interlachen, FL. The cv. Star showed severe leaf scorch, partial defoliation, and a generally unthrifty growth structure of many thin

First Report of Oleander Leaf Scorch Caused by Xylella fastidiosa in Texas.

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Bacterial leaf scorch caused by Xylella fastidiosa has been reported on oleander in California (3) and Florida (4). In June 2002, leaf scorch symptoms including chlorotic mottling of leaves, necrosis on leaf tips or whole leaves, defoliation, and shortened internodes were observed in oleander plants

Monoclonal antibodies against the aster yellows agent.

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Hybridoma clones secreting specific monoclonal antibodies against the aster yellows agent, a mycoplasma-like organism, were produced by using partially purified salivary gland preparations from infected leafhopper vectors as the immunogen. After 3947 hybridomas from 20 independent fusions were

First Report of Sclerotium rolfsii on Catharanthus roseus.

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Wilt, blight, and stem necrosis were observed on Catharanthus roseus (L.) G. Don 'Mediterranean Deep Rose' (MDR) plants (Madagascar or rose periwinkle) in August 1999 at Burden Research Plantation in Baton Rouge, LA. MDR was the only prostrate-form cultivar and the only cultivar of 11 that was

First Report of a Tospovirus on Sunflower (Helianthus annus L.) from India.

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Virus-like symptoms were observed on sunflower in and around Tirupati during January 1998. Infected plants exhibited severe mosaic, systemic necrosis along the stem and floral heads, leaf distortion, and ringspots on leaves. The causal virus, mechanically transmissible from sunflower to sunflower

First Report of Botrytis Blight Caused by Botrytis cinerea on Periwinkle (Catharanthus roseus) in Italy.

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Catharanthus roseus (periwinkle), a perennial plant belonging to the Apocynaceae family, is grown as a warm-season bedding plant in temperate gardens. This species is characterized by a long flowering period and prized for its white-to-dark pink flowers. In October of 2008, 15% of C. roseus plants

First Report of Plumeria spp. Rust Caused by Coleosporium plumeriae in Louisiana and Malaysia and Catheranthus roseus, a New Host of this Rust.

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Plumeria spp., native to tropical America, are popular small trees grown widely in tropical areas of the world and as potted plants elsewhere. P. rubra and P. obtusa cultivars and hybrids are most common. A rust disease of a Plumeria sp. (likely P. rubra based on pointed leaf tips, leaves more than

Association with the Syndrome "Basses Richesses" of Sugar Beet of a Phytoplasma and a Bacterium-Like Organism Transmitted by a Pentastiridius sp.

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ABSTRACT The syndrome "basses richesses" of sugar beet (SBR) was first observed in 1991 in Burgundy, France. A cixiid planthopper, Pentastiridius beieri, has been proved to be involved in the transmission to sugar beet of a stolbur phytoplasma, which could be detected in some affected plants. In

FOREIGN BODY IN THE NASOPHARYNX; MASQUERADING AS PHARYNGOTONSILLITIS.

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Foreign body (FB) in the aerodigestive tracts has been commonly reported but findings of impacted foreign bodies in the nasopharynx following inhalation/ingestion are very rare. Most of the FB gets lodged as a result of forceful vomiting, coughing,and digital manoeuvres for removal of FB in the

First Report of Xylella fastidiosa Associated with Leaf Scorch in Black Oak in Washington, D.C.

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Bacterial leaf scorch caused by Xylella fastidiosa has been reported in 17 species of oak including bur, pin, red, scarlet, shingle, and white oaks (3). In September 2002, a leaf scorch symptom characterized by marginal necrosis of leaves bordered by a darker brown band was observed in a mature

'Candidatus Phytoplasma brasiliense' (16SrXV-A Subgroup) Associated with Cauliflower Displaying Stunt Symptoms in Brazil.

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Cauliflower stunt, caused by a phytoplasma of the group 16SrIII-J, was reported in the beginning of 2012 and has occurred with high incidences of infected plants (up to 90%) in crops located in the state of São Paulo in the southeast region of Brazil (3). Diseased plants exhibit general stunting,

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