Consulta: subjectFacets:"Host resistance"
Registros recuperados: 6
Data/hora: 02/06/2024 09:29:54

STUDIES ON TICKS (ACARI : IXODIDAE) INFESTING CATTLE IN THE EASTERN FREE STATE PROVINCE OF SOUTH AFRICA : INDIVIDUAL HOST VARIATION
Provedor de dados: 19
Autores: Hlatshwayo, M.; Mbati, P. A.; Dipeolu, O. O.
Palavras-chave: Cattle; Ticks; Host resistance.
Ano: 2002
URL: http://ir.obihiro.ac.jp/dspace/handle/10322/627

DENDRITIC CELLS AND HOST RESISTANCE TO TOXOPLASMA GONDII
Provedor de dados: 19
Autores: Makala, Levi H. C.; Nagasawa, Hideyuki.
Palavras-chave: Toxoplasma gondii; IL-12; IFN-γ; Dendritic cells; Host resistance; Mouse.
Ano: 2003
URL: http://ir.obihiro.ac.jp/dspace/handle/10322/634

Cytological aspects of incompatible and compatible interactions between rice, wheat and the blast pathogen Pyricularia oryzae
Provedor de dados: 63
Autores: Araujo,Leonardo; Soares,Juliana Moreira; Filippi,Marta Cristina Corsi de; Rodrigues,Fabrício Ávila.
ABSTRACT Blast, caused by the fungus Pyricularia oryzae, is an important disease affecting rice and wheat yield worldwide. This study investigated the cytological aspects of incompatible (non-host resistance) and compatible (host resistance) rice- (R_Po) and wheat- (W_Po) Pyricularia oryzae isolate interactions. Inoculations of rice and wheat with the R_Po and W_Po isolates of P. oryzae, respectively, were expected to be compatible interactions (host resistance), whereas inoculations of rice and wheat with the W_Po and R_Po isolates of P. oryzae, respectively, were considered to be incompatible interactions (non-host resistance). For the compatible interactions (rice-R_Po and wheat-W_Po), fungal hyphae penetrated and colonized the epidermal cells and also...
Tipo: Info:eu-repo/semantics/article
Palavras-chave: Magnaporthe oryzae; Oryza sativa; Triticum aestivum L; Blast disease; Host resistance.
Ano: 2016
URL: http://www.scielo.br/scielo.php?script=sci_arttext&pid=S0103-90162016000200177

Effects of silicon on the penetration and reproduction events of Meloidogyne exigua on coffee roots
Provedor de dados: 53
Autores: Silva,Rodrigo Vieira; Oliveira,Rosângela D’Arc de Lima; Ferreira,Patrícia da Silva; Castro,Douglas Barbosa; Rodrigues,Fabrício Ávila.
Considering that the root-knot nematode Meloidogyne exigua has caused great yield losses to coffee production in Brazil, this study aimed to determine whether the penetration and the reproduction events of this nematode on the roots of plants from two coffee cultivars with different levels of basal resistance to this nematode could be affected by silicon (Si). Coffee plants from the cultivars Catuaí and IAPAR 59, which are susceptible and resistant, respectively, to M. exigua, were grown in pots containing Si-deficient soil that was amended with either calcium silicate (+Si) or calcium carbonate (–Si). The Si concentration on the root tissue significantly increased by 159 and 97% for the +Si plants from the cultivars Catuaí and IAPAR 59, respectively,...
Tipo: Info:eu-repo/semantics/article
Palavras-chave: Coffea arabica; Host resistance; Plant nutrition; Root-knot nematode.
Ano: 2015
URL: http://www.scielo.br/scielo.php?script=sci_arttext&pid=S0006-87052015000200196

Nutritional status of rice plants supplied with silicon in response to Pyricularia oryzae infection
Provedor de dados: 53
Autores: Domiciano,Gisele Pereira; Araujo,Leonardo; Duarte,Henrique Silva Silveira; Freitas,Cecilia Chagas; Einhardt,Andersom Milech; Rodrigues,Fabrício Ávila.
ABSTRACT Considering the importance of silicon (Si) to increase rice resistance to blast, this study investigated the nutritional status of rice plants supplied with this element in response to Pyricularia oryzae infection. Plants were grown in nutrient solutions containing 0 and 2 mmol·L-1 of Si (referred to -Si and +Si plants, respectively). The area under blast progress curve decreased for +Si plants due to a significant increase of 714% on the foliar Si concentration in contrast to -Si plants. For +Si plants, the foliar N, P, K, Ca, Mg, Cu, and B concentrations were significantly lower in comparison to -Si plants. On infected plants, the foliar N, K, and Cu concentrations were significantly lower in comparison to noninfected ones. The foliar Zn, Fe,...
Tipo: Info:eu-repo/semantics/article
Palavras-chave: Foliar disease; Host resistance; Plant nutrition.
Ano: 2019
URL: http://www.scielo.br/scielo.php?script=sci_arttext&pid=S0006-87052019000400573

Effects of diazepam on Mycobacterium bovis-induced infection in hamsters
Provedor de dados: 56
Autores: Righi,D.A.; Pinheiro,S.R.; Guerra,J.L.; Palermo-Neto,J.
The in utero exposure of hamsters to low doses of diazepam results in impaired host defense against Mycobacterium bovis during adulthood. Delayed developmental immunotoxicity, however, represents a specific situation that might not be general. The present experiment was undertaken to investigate the effects of diazepam on hamster resistance to M. bovis using adult animals. The effects of diazepam treatment on serum cortisol levels were also studied. Adult hamsters (N = 10 for each group) were treated with diazepam (E1 = 1.0, E2 = 2.0 or E3 = 3.0 mg kg-1 day-1 subcutaneously) or with control solution (C) for 30 days. Seven days after the beginning of the treatment, the animals received identical inoculum concentrations of M. bovis. Hamsters treated with the...
Tipo: Info:eu-repo/semantics/article
Palavras-chave: Mycobacterium bovis; Host resistance; Macrophages; Diazepam; Immune system.
Ano: 1999
URL: http://www.scielo.br/scielo.php?script=sci_arttext&pid=S0100-879X1999000900014