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| Almeida,Álvaro M. R.; Sakai,Junichi; Hanada,Kaoru; Oliveira,Thalita G.; Belintani,Priscila; Kitajima,Elliot W.; Souto,Eliezer R.; Novaes,Tanara G. de; Nora,Paulo S.. |
| A virus was isolated from soybean (Glycine max) plants with symptoms of dwarfing and bud blight in Wenceslau Braz County, Paraná, Brazil. The host range and properties resembled those of Tobacco streak virus (TSV). The purified virus showed three peaks in a frozen sucrose gradient. Antiserum was produced and the virus was serologically related to TSV. Electron microscopy detected 28 nm spherical particles. Coat protein (CP) had a Mr of 29.880 Da. A fragment of 1028 nt was amplified, cloned and sequenced. One open reading frame with 717 nt was identified and associated to the CP. The CP gene shared 83% identity with the sequence of TSV CP from white clover (Trifolium repens) (GenBank CAA25133). This is the first report of the biological and molecular... |
| Tipo: Info:eu-repo/semantics/article |
Palavras-chave: Nucleotide sequence; Elisa; Host range. |
| Ano: 2005 |
URL: http://www.scielo.br/scielo.php?script=sci_arttext&pid=S0100-41582005000400005 |
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| Nakashima, Yoshitaka; Birkett, Michael A.; Pye, Barry J.; Powell, Wilf; 仲島, 義貴. |
| The avoidance responses of aphid parasitoids with varying host ranges (Aphidius eadyi, Aphidius ervi, and Praon volucre) to chemical trails deposited by intraguild predatory ladybirds, Coccinella septempunctata and Adalia bipunctata, were investigated. Females of all three parasitoid species avoided leaves previously visited by C. septempunctata or A. bipunctata adults. The avoidance responses shown by the two Aphidius species were stronger to trails of C. septempunctata than to those of A. bipunctata. However, P. volucre avoided trails of both ladybird species to a similar degree. Dose responses of these three parasitoid species to the hydrocarbons n-tricosane (C23H48), n-pentacosane (C25H52), and n-heptacosane (C27H56), which are components of the trails... |
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Palavras-chave: Intraguild predation; Predator avoidance; Trail; Oviposition decision; Host range; Habitat similarity; Dose response. |
| Ano: 2006 |
URL: http://ir.obihiro.ac.jp/dspace/handle/10322/810 |
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| Kitajima,Elliot Watanabe; Kubo,Karen Sumire; Ferreira,Paulo de Tarso Oliveira; Alcântara,Berenice Kussumoto de; Boari,Alessandra Jesus; Gomes,Renata Takassugi; Freitas-Astua,Juliana; Rezende,Jorge Alberto Marques; Morais,Gilberto José de; Salaroli,Renato Barbosa. |
| Chlorotic spots have been observed in plants of Clerodendrum x speciosum growing in residential gardens and parks in Piracicaba, SP, Brazil. Thin sections of diseased tissues revealed characteristic cytopathic effects of the nuclear type of the Brevipalpus (Acari: Tenuipalpidae) mite-transmitted viruses (BTrV). Brevipalpus mites, identified as B. phoenicis, infesting symptomatic C. x speciosum plants transmitted the pathogen to healthy C. x speciosum and to C. thomsonae, Gomphrena globosa, Hibiscus cannabinus, H. coccineus, H. schizopetalus, Salvia leucantha, Spathiphyllum wallasi and Tetragonia expansa causing chlorotic spots on their leaves. Mechanical inoculation using leaf extracts from infected C. x speciosum resulted in chlorotic spots on inoculated... |
| Tipo: Info:eu-repo/semantics/article |
Palavras-chave: Brevipalpus phoenicis; Clerodendrum x speciosum; Host range; Transmission; Purification. |
| Ano: 2008 |
URL: http://www.scielo.br/scielo.php?script=sci_arttext&pid=S0103-90162008000100006 |
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| Hagen,Jens; Gasparotto,Luadir; Moraes,Vicente H. F.; Lieberei,Reinhard. |
| Folhas jovens de mandioca (Manihot esculenta) inoculadas com uma suspensão de conídios viáveis ou autoclavados de Microcyclus ulei, um patógeno de diversas espécies do gênero Hevea, reagiram fortemente com indução de compostos azuis fluorescentes nas áreas de contato, com a morte das células locais e a formação irregular dos tecidos, distorção das folhas e, ocasionalmente, com a abscisão da folha. Também ocorreu crescimento restrito das hifas, mas sem produção de novos conídios. A reação das plantas foi mais semelhante a uma reação de resistência complexa a um patógeno biotrófico do que uma reação típica de defesa de uma planta não hospedeira. |
| Tipo: Info:eu-repo/semantics/article |
Palavras-chave: Host range; Defense reactions; Manihot esculenta; Hevea spp. |
| Ano: 2003 |
URL: http://www.scielo.br/scielo.php?script=sci_arttext&pid=S0100-41582003000500002 |
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| Achterberg, C. van; Shaw, M.R.. |
| Seven new species of the genus Aleiodes Wesmael, 1838 (Braconidae: Rogadinae) are described and illustrated: A. abraxanae sp. n., A. angustipterus sp. n., A. artesiariae sp. n., A. carminatus sp. n., A. diarsianae sp. n., A. leptofemur sp. n., and A. ryrholmi sp. n. A neotype is designated for each of Aleiodes circumscriptus (Nees, 1834) and A. pictus (Herrich-Schäffer, 1838), and both species are redescribed and illustrated. Aleiodes ochraceus Hellén, 1927 (not A. ochraceus (Curtis, 1834)) is renamed as A. curticornis nom. n. & stat. rev., and redescribed and illustrated. Aleiodes bistrigatus Roman, 1917, A. nigriceps Wesmael, 1838, and A. reticulatus (Noskiewicz, 1956), are re-instated as valid species. A lectotype is designated for Aleiodes... |
| Tipo: Article / Letter to the editor |
Palavras-chave: Aleiodes; Host range; Biology; Distribution; Distribution; Phenology. |
| Ano: 2016 |
URL: http://www.repository.naturalis.nl/record/625491 |
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