Plant Pathogen Relation
Mostrando 1-12 de 30 artigos, teses e dissertações.
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1. Herança da resistência da soja à podridão radicular de fitóftora, em variedades comerciais brasileiras
The phytophthora root rot (PRR), caused by Phytophthora sojae (Kaufman &Gerdman), is one of the most destructive soybean diseases and can provoke yield losses of up to 100%. PRR has occurred more frequently in Brazil since the season 2005/06, mainly in the South region. There are some resistant commercial varieties but their inheritance remains unknown. All
IBICT - Instituto Brasileiro de Informação em Ciência e Tecnologia. Publicado em: 16/02/2012
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2. Evidence that the Ceratobasidium-like white-thread blight and black rot fungal pathogens from persimmon and tea crops in the Brazilian Atlantic Forest agroecosystem are two distinct phylospecies
The white-thread blight and black rot (WTBR) caused by basidiomycetous fungi of the genus Ceratobasidium is emerging as an important plant disease in Brazil, particularly for crop species in the Ericales such as persimmon (Diospyros kaki) and tea (Camellia sinensis). However, the species identity of the fungal pathogen associated with either of these hosts i
Genetics and Molecular Biology. Publicado em: 17/05/2012
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3. Severidade da pinta preta em genótipos de tomateiro cereja e avaliação de fungicidas e produtos alternativos no crescimento micelial e germinação de Alternaria tomatophila
Among the fungal diseases that affect tomato, the black spot, caused by the fungus Alternaria tomatophila, is one of the most important of the crop. The use of resistant varieties and products that can induce resistance emerge as an option of low cost and less damage to the environment when compared to the use of agrochemicals. Thus, our objective with this
IBICT - Instituto Brasileiro de Informação em Ciência e Tecnologia. Publicado em: 18/07/2011
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4. Etiology and epidemiology of Pythium root rot in hydroponic crops: current knowledge and perspectives.
The etiology and epidemiology of Pythium root rot in hydroponically-grown crops are reviewed with emphasis on knowledge and concepts considered important for managing the disease in commercial greenhouses. Pythium root rot continually threatens the productivity of numerous kinds of crops in hydroponic systems around the world including cucumber, tomato, swee
Summa Phytopathologica. Publicado em: 2011
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5. Transformation of Fusarium oxysporum f sp. vasinfectum with GFP and DsRed gene markers. / TRANSFORMAÃÃO DE Fusarium oxysporum f. sp. vasinfectum COM OS GENES MARCADORES GFP e DsRed.
Fusarium oxysporum f sp. vasinfectum, the casual agent of fusarium wilt disease of cotton, is frequent in most cottonâproducing regions in Brazil. The fungus infects roots, colonizes the rhizomes and eventually blocks the vascular system of the pseudostems, leading to the plant collapse. The Green and Red Fluorescent Proteins (GFP and DsRed) emit green and
Publicado em: 2009
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6. Essential oils for control of âColletotrichum truncatumâ and Asian soybean rust. / ÃLEOS ESSENCIAIS PARA O CONTROLE DE âColletotrichum truncatumâ E FERRUGEM ASIÃTICA EM SOJA
The objective of the work was to evaluate the antifungal activity of essential oils via treatment of soy seeds in the control of the fungus Colletotrichum truncatum and on the Asian soy rust. For that, the essential oils of Hyptis marrubioides, Aloysia gratissima and Cordia verbenacea were tested. In the first experiment, the oils were initially tested in vi
Publicado em: 2009
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7. Caracterization of a thaumatin-like gene expressed by Moniliophthora Perniciosa fungus, the causative agent of cacao Whiches Broom disease / Caracterização de um gene similar a taumatina expresso pelo fungo causador da Vassoura de bruxa, Moniliophthora perniciosa
Moniliophthora perniciosa is a phytopatogen that has economical importance in Brazil, particularly in the south of Bahia, because this fungus causes the disease in cacao known as Witches Broom disease. This fungus is a hemibiotrofic pathogen that has two distinct stages: a biotrophic (or parasitic) and a necrotrophic (or saprotrophic). The database generated
Publicado em: 2008
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8. Ramulosis (Colletotrichum gossyppii var. cephalosporioides Costa) over conventional and direct sowing related to microclimate, growth and the development of the cotton-crop / Ocorrência da Ramulose (Colletotrichum gossypii var. cephalosporioides Costa) sob semeadura convencional e direta relacionada ao microclima, crescimento e desenvolvimento da cultura do algodoeiro
Systems with direct seeding over mulching are more often used in agriculture, and the Ramulosis from the cotton plant caused by the fungus Coletotrichum gossypii var. cephalosporioides Costa, one of the most important diseases in cotton crop. During the years of 2004/05, 2005/06; and 2006/07at the University of Agriculture "Luiz De Quieroz", USP/ ESALQ, in P
Publicado em: 2008
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9. Listeria spp. e L. monocytogenes in the hot dog frankfurters production and consuption practices / Listeria spp. E Listeria monocytogenes NA PRODUÇÃO DE SALSICHAS TIPO HOT DOG E HÁBITOS DE CONSUMO
Listeria monocytogenes is a gram-positive bacterium, anaerobic facultative, that grows under refrigerator temperature and it can cause listeriosis in human and animals. It is widely distributed in the environment and it has been isolated from food of animal and vegetal origin that was associated to outbreaks of high lethality in many coutries. Thus, this bac
Publicado em: 2008
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10. Identificação de genes diferencialmente expressos em tomateiro induzidos por ácido salicílico e por Fusarium oxysporum f. sp. lycopersici.
To identify tomato plant (Lycopersicon esculentum Mill), cv. BRH, genes which answer to plant pathogen Fusarium oxysporum f. sp. lycopersici and salicylic acid, the carrier molecule for activation of responses of plant defense, it was used the suppression subtractive hybridization (SSH) technique, from leaf cDNAs, 24h after salicylic acid, library denominate
IBICT - Instituto Brasileiro de Informação em Ciência e Tecnologia. Publicado em: 14/06/2007
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11. InfluÃncia da enxertia, em relaÃÃo à murcha bacteriana causada por Ralstonia solanacearum, no desenvolvimento e produtividade do pimentÃo em cultivo protegido / Influnce of the grafting, in relation to the bacterial withering caused by Ralstonia solanacearum, in the development and productivity of the chili under protecting growth
Had been established 15 treatments from the combination of the âMagaliâ hybrid chili, grafeted in three rootstocks (AF 3001, AF 8251 and AF 8253, with their respective ungrafted plants) and inoculated with biovars I and III of Ralstonia Solanacearum. Each experimental area had four plants, being used all for evaluations. The used method of graft was of sim
Publicado em: 2007
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12. Quantificação de parâmetros da pré-penetração e monocíclicos relacionados ao patossistema Phakopsora pachyrhizi - soja / Quantification of prepenetration and monocyclic parameters related to Phakopsora pachyrhizi - soybean pathosystem
The knowledge of epidemiological aspects of Phakopsora pachyrhizi - soybean pathosystem can help in controlling this disease. For this four experiments were performed. (1) Urediniospores were evaluated regarding germination and appressorium formation in polystyrene plates, in the temperatures of 8, 12, 15, 20, 25 and 30ºC and wetness duration of 1, 2, 4, 8
Publicado em: 2007