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Registros recuperados: 13
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A study on the host range of tungro and orange leaf viruses of rice International Rice Research Institute
Wathanakul, Luansark.
35 leaves : photos. Thesis (M.S.) -- University of the Philippines
Tipo: Thesis Palavras-chave: Rice; Plant viruses; Rice tungro bacilliform virus; Rice tungro spherical virus; Host range; Vectors; Disease transmission.
Ano: 1964 URL: http://hdl.handle.net/123456789/368
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Annona squamosa, a new host of Ceratocystis fimbriata Trop. Plant Pathol.
Silveira,Silvaldo F.; Harrington,Thomas C.; Mussi-Dias,Vicente; Engelbrecht,Christine J. B.; Alfenas,Acelino C.; Silva,Carolina R..
Mango branch blight disease, caused by Ceratocystis fimbriata, is endemic to the municipality of São Fidelis in northern Rio de Janeiro State. In addition to mango, C. fimbriata was found associated with sugar apple trees (Annona squamosa) showing symptoms of branch blight in São Fidelis. Sugar apple and mango isolates from the same region had the same morphology and showed similar ITS-rDNA sequences. These sequences were also similar to other Brazilian isolates of C. fimbriata sensu stricto. Cross inoculation of such isolates obtained from diseased sugar apple and mango resulted in diseased symptoms on both plant species. This is the first record of A. squamosa as a host for C. fimbriata.
Tipo: Info:eu-repo/semantics/other Palavras-chave: Host range; Sugar apple; Mangifera indica; Pathogenic variability.
Ano: 2006 URL: http://www.scielo.br/scielo.php?script=sci_arttext&pid=S0100-41582006000400010
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Aphid parasitoids (Hymenoptera, Braconidae, Aphidiinae) and their associations related to biological control in Brazil Rev. Bras. entomol.
Starý,Petr; Sampaio,Marcus Vinicius; Bueno,Vanda Helena Paes.
This study evaluated the parasitoid-aphid-plant associations in Brazil with the objective of developing a useful research database for further studies of aphid parasitoid ecology and aphid management. The original material was obtained from collections made in Paraná, Rio Grande do Sul, Minas Gerais, and São Paulo states. The published information on the Aphidiinae in Brazil is revised. The general features of the target parasitoid fauna of Central and South America is summarized and promising biological control programs of some aphid species in Brazil is discussed.
Tipo: Info:eu-repo/semantics/article Palavras-chave: Aphid; Host range; Insect-plant interactions.
Ano: 2007 URL: http://www.scielo.br/scielo.php?script=sci_arttext&pid=S0085-56262007000100018
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Biological and molecular characterization of an isolate of Tobacco streak virus obtained from soybeans in Brazil Trop. Plant Pathol.
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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Chemically mediated intraguild predator avoidance by aphid parasitoids: Interspecific variability in sensitivity to semiochemical trails of ladybird predators OAK
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...
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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Chlorotic spots on Clerodendrum, a disease caused by a nuclear type of Brevipalpus (Acari:Tenuipalpidae) transmitted virus Scientia Agricola
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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Effect of two solanaceous plants on developmental and population parameters of the tomato leaf miner, Tuta absoluta (Meyrick) (Lepidoptera: Gelechiidae) Neotropical Entomology
Pereyra,Patricia C.; Sánchez,Norma E..
Tuta absoluta (Meyrick) is an important tomato pest that also feeds on other host-plants from the Solanceae family. We studied the effect of two cultivated plants, tomato (Lycopersicum esculentum Mill.) and potato Solanum tuberosum L. on the development and populational parameters of T. absoluta related with host-plant suitability. Larval developmental time, pupal weight, mean fecundity and an index of host-plant quality (IPQ = pupal weight / frass weight) were estimated. Age-specific survivorship and fecundity life tables were constructed in the laboratory to evaluate the following populational parameters: net reproductive rate (Ro), intrinsic rate of increase (r) and generation time (T). Larval developmental time was shorter and pupal weight was higher...
Tipo: Info:eu-repo/semantics/article Palavras-chave: Insecta; Host range; Lycopersicum esculentum; Solanum tuberosum; Integrated Pest Management.
Ano: 2006 URL: http://www.scielo.br/scielo.php?script=sci_arttext&pid=S1519-566X2006000500016
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French scallops: A new host for ostreid herpesvirus-1 ArchiMer
Arzul, Isabelle; Nicolas, Jean-louis; Davison, Andrew J.; Renault, Tristan.
Sporadic high mortalities were reported among larval French scallops (Pecten maximus). Electron microscopy of moribund larvae revealed particles with the characteristics of a herpesvirus in association with cellular lesions. PCR and DNA sequencing showed that the virus is a variant of ostreid herpesvirus-1 that has already been described in clams and oysters. This is the first description of a herpesvirus infection of a scallop species. The virus was transmitted successfully from an extract of infected scallop larvae to uninfected scallop or oyster (Crassostrea, gigas) larvae, demonstrating that it is able to infect both species. Detection of viral DNA in asymptomatic adult scallops by in situ hybridisation indicates that the herpesvirus may have been...
Tipo: Text Palavras-chave: Bivalve; Host range; Transmission; Polymorphism; OsHV 1; Pecten maximus; Scallop; Herpesvirus.
Ano: 2001 URL: http://archimer.ifremer.fr/doc/2001/publication-739.pdf
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Johnsongrass mosaic virus infecting sorghum in Brazil. Repositório Alice
SOUZA, I. R. P. de; BARROS, B. de A.; XAVIER, A. da S.; CARVALHO, S. G. M.; SABATO, E. de O.; GONÇALVES, I. A. M.; NODA, R. W.; RODRIGUES, J. A. S..
Sorghum bicolor (L.) Moench is cultivated in several tropical and subtropical regions in the world. Among the diseases, the mosaic caused by potyvirus is an important constraint for the agricultural production causing reduction in grain and forage sorghum production. In Brazil, only Sugarcane mosaic virus (SCMV) had previously been reported as the potyvirus species causing mosaic in sorghum and maize. A survey was carried out in sorghum plantations of the State of Minas Gerais, Brazil, during the 2014/2015 crop season for monitoring mosaic disease. Samples of sorghum plants expressing virus disease symptoms were collected for molecular analyzes. Molecular characterization of coat protein (CP) of the potyviruses naturally infecting sorghum, allowed us to...
Tipo: Artigo em periódico indexado (ALICE) Palavras-chave: Capsid proteins; Doença de planta; Sorgo; Vírus; Potyvirus; Coat proteins; Host range.
Ano: 2017 URL: http://www.alice.cnptia.embrapa.br/alice/handle/doc/1085555
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Phylogeography of the Bradyrhizobium spp. associated with peanut, Arachis hypogaea: Fellow travellers or new associations? Repositório Alice
BOUZNIF, B.; GUFRACHI, I.; DE LA VEJA, R.; HUNGRIA, M.; MARS, M.; ALUNNI, B.; SHYKOFF, J. A..
bitstream/item/210656/1/Phylogeography-of-the-Bradyrhizobium.pdf
Tipo: Artigo em periódico indexado (ALICE) Palavras-chave: Microbiologia do Solo; Simbiose; Hospedeiro; Symbiosis; Horizontal gene transfer; Host range.
Ano: 2019 URL: http://www.alice.cnptia.embrapa.br/alice/handle/doc/1117745
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Reação de folhas de mandioca ao Microcyclus ulei, agente causal do mal-das-folhas da seringueira Trop. Plant Pathol.
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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Revision of the western Palaearctic species of Aleiodes Wesmael (Hymenoptera, Braconidae, Rogadinae). Part 1: Introduction, key to species groups, outlying distinctive species, and revisionary notes on some further species Naturalis
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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Use of taxonomic affinities of plants and insects to predict the host range of six selected oligophagous herbivorous pests of rice International Rice Research Institute
Catindig, Josie Lyn A..
176 leaves : ill. Thesis (M.S.) -- University of the Philippines at Los Baños
Tipo: Thesis Palavras-chave: Rice; Plant taxonomy; Insect pests; Plant-insect relations; Host range; Phytophagous insects.
Ano: 1993 URL: http://hdl.handle.net/123456789/751
Registros recuperados: 13
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