Phyllody
Mostrando 1-9 de 9 artigos, teses e dissertações.
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1. Sesame phyllody associated with a 16SrI-B phytoplasma, a ‘Candidatus Phytoplasma asteris’-related strain, in Paraguay
ABSTRACT: Sesame (Sesamum indicum L.) plants exhibiting symptoms of phyllody disease were observed in commercial fields in Paraguay. The symptoms were indicative of infection by phytoplasmas. Thus, the present study investigated the association between affected plants and phytoplasma, which was later analyzed using molecular and phylogenetic methods. Total D
Sci. agric. (Piracicaba, Braz.). Publicado em: 2019-02
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2. Bitter gourd little leaf disease associated to 'Candidatus Phytoplasma asteris'
Little leaf disease symptoms including dwarfed, thickened and puckered leaves and shortened internodes of bitter gourd (Momordica charantia L.) plants were observed in Meiktila, Myanmar 2012. The causal agent was detected by polymerase chain reaction using universal phytoplasma primers, and classified by sequencing of 16S rRNA gene, ribosomal protein (rp) ge
Trop. plant pathol.. Publicado em: 2014-02
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3. Identificação molecular de distintos fitoplasmas pertencentes ao grupo 16Srl associados à filodia do gergelim (Sesamum indicum L.). / Molecular identification of distinct phytoplasmas belonging to 16SrI group associated with sesame (Sesamum indicum L.) phyllody.
Sintomas típicos de infecção por fitoplasmas foram encontrados em plantas de gergelim cultivadas comercialmente. Estes sintomas se caracterizavam pela intensa proliferação de ramos, presença abundante de folhas levemente cloróticas e de tamanho menor que as normais, além de pétalas de coloração verde. A partir de plantas afetadas foi extraído o D
IBICT - Instituto Brasileiro de Informação em Ciência e Tecnologia. Publicado em: 17/10/2012
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4. Phyllody Phytoplasma infecting Sesame (Sesamum indicum) in Myanmar
Phyllody symptoms in sesame plants consisting of green leaf-like floral organs were collected from Yezin area, NayPyiTaw Division, Myanmar in January, 2010 and the etiological agent was investigated. By using Polymerase Chain Reaction (PCR), phytoplasma was detected from the symptoms and termed sesame phyllody phytoplasma (SP-MYAN). Restriction Fragment Leng
Tropical Plant Pathology. Publicado em: 2010
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5. Identificação molecular de um fitoplasma associado à malformação das folhas das ornamentais Celosia argentea L. e Celosia spicata L. / Molecular identification of a phytoplasma associated with malformation of the leaves of Celosia argentea L. and Celosia spicata L.
Plants belonging to the species Celosia argentea and Celosia spicata are appreciated as ornamentals due to their colorful flowers. Recently, plants of both species exhibiting typical symptoms induced by phytoplasmas, characterized by deformed leaves, proliferation of axillary shoots, stunt and phyllody were found in public places in Piracicaba, SP, Brazil. T
Publicado em: 2009
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6. Identificação molecular de fitoplasmas associados ao amarelo da abobrinha-de-moita e à filodia de frutos do morangueiro / Molecular identification of phytoplasmas associated with summer squash yellow and strawberry fruit phyllody
Frequentemente, fitoplasmas têm sido associados com doenças em cucurbitáceas, tanto cultivadas, como silvestres e daninhas. Em abobrinha-de-moita cultivada no Vale do Ribeira, Estado de São Paulo, foi observado superbrotamento de hastes, malformação da parte aérea e folhas deformadas e enrugadas, sugerindo uma possível infecção por fitoplasmas. A a
Publicado em: 2009
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7. Identification and grouping of mycoplasmalike organisms associated with grapevine yellows and clover phyllody diseases based on immunological and molecular analyses.
Immunofluorescent staining, dot blot hybridization, PCR, random amplified polymorphic DNA (RAPD) markers, and restriction fragment length polymorphism wee used to study the genetic relatedness among mycoplasmalike organisms (MLOs) associated with several geographically diverse grapevine yellows diseases (CA1, CH1, SA1, and SA2 from Bologna, Italy; GYU from U
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8. Nonradioactive Screening Method for Isolation of Disease-Specific Probes To Diagnose Plant Diseases Caused by Mycoplasmalike Organisms
DNA fragments of tomato big bud (BB) mycoplasmalike organism (MLO) in diseased periwinkle plants (Catharanthus roseus L.) were cloned to pSP6 plasmid vectors and amplified in Escherichia coli JM83. A nonradioactive method was developed and used to screen for MLO-specific recombinants. Cloned DNA probes were prepared by nick translation of the MLO recombinant
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9. Genetic Interrelatedness among Clover Proliferation Mycoplasmalike Organisms (MLOs) and Other MLOs Investigated by Nucleic Acid Hybridization and Restriction Fragment Length Polymorphism Analyses
DNA was isolated from clover proliferation (CP) mycoplasmalike organism (MLO)-diseased periwinkle plants (Catharanthus roseus (L.) G. Don.) and cloned into pSP6 plasmid vectors. CP MLO-specific recombinant DNA clones were biotin labeled and used as probes in dot hybridization and restriction fragment length polymorphism analyses to study the genetic interrel