ABSTRACT The effect of elevated atmospheric CO(2) concentration on rice blast and sheath blight disease severity was studied in the field in northern Japan for 3 years. With free-air CO(2) enrichment (FACE), rice plants were grown in ambient and elevated ( approximately 200 to 280 mumol mol(-1) above ambient) CO(2) concentrations, and were artificially inoculated with consist of Magnaporthe ory...

Rhizoctonia solani is a necrotrophic fungal pathogen that causes disease in diverse plant species. In recent years, the genomic and transcriptomic studies have identified several candidate pathogenicity determinants of R. solani; however, most them remain to be validated. this study, we report viral vector-based host-induced gene silencing (HIGS) as well dsRNA (double-stranded RNA)-based approa...

abstract sheath blight is an important rice disease in the mazandaran province of iran. biological control of this disease as alternative of chemical control with propiconazol (tilt) fungicide, examined with 3 biological products, trichodermin ab, trichodermin b and subtilin produced in iran. at first in the laboratory, fungi and bacterium isolated and purified from these products, and their ab...

Sheath blight is considered the most significant disease of rice and causes enormous yield losses over the world. Breeding for resistant varieties is the only viable option to combat the disease efficiently. Seventeen diverged rice genotypes along with 17 QTL-linked SSR markers were evaluated under greenhouse conditions. Pearson's correlation showed only the flag leaf angle had a significant co...

Variability in the cultivated germplasm for economic traits such as resistance to rice tungro virus, sheathblight, yellow stem borer, drought and salt tolerance is limited. This necessitated search for the genes in secondary and tertiary gene pool of genus Oryza. Fortunately, wild species are an important reservoir ofuseful genes for resistance to major disease, pest and tolerance t...

A novel method of management maize pathogens in vitro and vivo using newly synthesized copper nanoparticles (CuNPs) has been documented this study. CuNPs have CuSO4 as a precursor, NaBH4 ascorbic acid reducing agent, polyethylene glycol 8000 (PEG-8000) stabilizing agent. Characterization Transmission Electron Microscope (TEM) confirmed the nanoparticles’ size range 35–70 nm. Fourier transform i...

Rhizoctonia solani is an important root infecting pathogen of a range of food staples worldwide including wheat, rice, maize, soybean, potato, legumes and others. Conventional resistance breeding strategies are hindered by the absence of tractable genetic resistance in any crop host. Understanding the biology and pathogenicity mechanisms of this fungus is important for addressing these disease ...

Mung bean (Vigna radiata L.) is attacked by numerous diseases of which anthracnose and web blight are predominant in Tarai Zone Uttarakhand. Anthracnose mung caused Colletotrichum lindemuthianum Rhizoctonia solani, respectively. Their occurrence development highly influenced weather conditions during the cropping season. Based on epidemiological data recorded at Pantnagar for two consecutive ye...

Rhizoctonia solani anastomosis group AG2-2 IIIB is a severe sugar beet and maize pathogen. It causes crown and root rot disease which le ads to y ield losses world-wide. The soil-borne pathogen is d ifficult to detec t and quantify by conventional methods. We developed a real-time PCR (qPCR) assay for the quantification of genomic DNA of Rhizoctonia solani AG2-2 IIIB based on the ITS region of ...