Witches Broom Disease
Mostrando 1-12 de 28 artigos, teses e dissertações.
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1. Resistance of cacao tree to witches’ broom disease – A study of inheritance
RESUMO Foram avaliados durante 10 anos o número de vassouras vegetativas e de almofada floral em cada planta das progênies de cruzamentos em delineamento North Carolina II com os clones Ca 5, CAB 5003, Chuao 120, ICS 1, Moq 216, Scavina 12, Scavina 6 e SPA 5, no grupo 1 de progenitores e, CC 10, CCN 34, Cepec 90, CSul 3, Ma 16, RB 36, SGu 26 e SIAL 70 no g
Summa Phytopathologica. Publicado em: 2022
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2. Resistance of cocoa to Moniliophthora perniciosa – progenitors and progenies selection
ABSTRACT Witches' broom, caused by Moniliophthora perniciosa, is the most important cacao disease in Brazil, and the final objective of this study is increasing the level and durability of resistance to this fungus, through the association of different alleles or genes favorable to the character, for the generation of new cocoa varieties. It was conducted, f
Revista Ceres. Publicado em: 2022
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3. Resistance to witches’ broom in adult plants and progeny of local varieties of cacao in Southern Bahia
ABSTRACT Plants of local cacao variety from Southern Bahia were evaluated in order to verify if there are different levels of resistance to witches’ broom disease in the study population and if the evaluation of adult plants in the field is a good predictor of these resistance levels. The seedlings were maintained under greenhouse conditions and inoculated
Bragantia. Publicado em: 2020-12
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4. Molecular characterization of a phytoplasma associated with a commercial variety of Momordica charantia
ABSTRACT: Momordica charantia (bitter melon) presents two distinct types or varieties, known as wild type and commercial type. Plants of the wild type are hosts of a phytoplasma of the group 16SrIII-J, which is associated with a disease known as witches’ broom. However, this disease has not yet been reported in commercial bitter melon. Thus, symptomatic pl
Sci. agric. (Piracicaba, Braz.). Publicado em: 2019-05
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5. Cacao families and parents selected as resistant to natural infection of Moniliophthora perniciosa
Abstract The known sources of resistance to witches' broom (WB), a severe disease of cacao, are limited. Aiming to identify families and parents resistant to Moniliophthora perniciosa, a population of 22 families was evaluated by assessing the number of brooms formed per tree during 10 years under field conditions. The population was established in randomize
Crop Breed. Appl. Biotechnol.. Publicado em: 2016-06
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6. Pathogenic variability of Moniliophthora perniciosa in three agroecological zones of the cacao region of Bahia, Brazil
Abstract Resistant cacao genotypes are the best measure to control the Witches' broom disease of cacao. To ensure efficiency, the pathogen variability in the cacao region of Bahia must be investigated. The pathogenic variability of Moniliophthora perniciosa inocula from nine municipalities was analyzed: Ilhéus, Floresta Azul and Jussari (agroecological zone
Crop Breed. Appl. Biotechnol.. Publicado em: 2016-03
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7. Analysis of the ergosterol biosynthesis pathway cloning, molecular characterization and phylogeny of lanosterol 14α-demethylase (ERG11) gene of Moniliophthora perniciosa
The phytopathogenic fungus Moniliophthora perniciosa (Stahel) Aime & Philips-Mora, causal agent of witches' broom disease of cocoa, causes countless damage to cocoa production in Brazil. Molecular studies have attempted to identify genes that play important roles in fungal survival and virulence. In this study, sequences deposited in the M. perniciosa Genome
Genet. Mol. Biol.. Publicado em: 03/11/2014
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8. Detection and molecular characterization of cactus witches'-broom disease associated with a group 16SrII phytoplasma in northern areas of China
In July 2010, cacti with typical phytoplasma symptoms were observed in Yangling district, Shaanxi Province, China. Based on amplification of 16S rRNA gene, phytoplasmas were detected by polymerase chain reaction (PCR) driven with universal primer pairs P1/ P7, followed by a nested PCR with universal primer pairs R16F2n/R16R2. Fragments of expected sizes (1.8
Tropical Plant Pathology. Publicado em: 2012-06
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9. Padrões de evolução genica e genomica em Moniliophthora perniciosa (Basiomicota, Agaricales), agente causal da vassoura de bruxa / Paterns of genomic evolution in Moniliophthora perniciosa (Basiomicota, Agaricales) causal agent of witche s broom disease
Moniliophthora perniciosa (Stahel) Aime &Phillips-Mora is a hemibiotrophic basidiomycete fungus that causes witches broom disease in cocoa (Theobroma cacao L.). This disease is characterized by the production of hyperplasic and hypertrophic stems and parthenogenetic fruits during biotrophic life-phasee, followed by necrosis of infected tissues during necrotr
Publicado em: 2010
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10. Contribuição a melhoria de qualidade de produtos de cacau no Brasil, por meio da caracterização de derivados de cultivares resistentes a vassoura-de-bruxa e de sementes danificadas pelo fungo / Contribution to the improvement of the quality of cocoa derived products in Brazil, through characterization of products from cultivars resistant to "witches broom" and from seeds damaged by the fungus
The aim of this study was to contribute with the Brazilian Genetic Improvement Program of cocoa by processing and characterizing the main cocoa-derived products from nine clones studied and used commercially in Bahia due to their resistance to ?witches? broom?: CEPEC 42, EET 397, TSA 654, TSA 656, TSAN 792, TSH 516, TSH 565, TSH 774, TSH 1188 and Comum cocoa
Publicado em: 2009
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11. The glyceraldehyde-3-phosphate dehydrogenase gene of Moniliophthora perniciosa, the causal agent of witches' broom disease of Theobroma cacao
This report describes the cloning, sequence and expression analysis of the glyceraldehyde-3-phosphate dehydrogenase (GAPDH) gene of Moniliophthora perniciosa, the most important pathogen of cocoa in Brazil. Southern blot analysis revealed the presence of a single copy of the GAPDH gene in the M. perniciosa genome (MpGAPDH). The complete MpGAPDH coding sequen
Genetics and Molecular Biology. Publicado em: 2009
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12. Identificação e expressão de genes da biossíntese do jasmonato na interação entre Theobroma cacao e Moniliophthora perniciosa / Identification and expression of genes associated with jasmonate biosynthesis in the Theobroma cacao and Moniliophthora perniciosa interaction
Witches broom disease of cacao (Theobroma cacao L.), caused by the basidiomycete Moniliophthora perniciosa is an important disease and the use of resistant varieties is the only economic and environmental long-term solution. Plant hormones are essential in the signaling network involved in the response against a variety of biotic and abiotic stresses. It is
Publicado em: 2009