Two field isolates of Rhizoctonia solani were isolated from infected paddy plants in Malaysia. These isolates were verified via ITS-rDNA analysis that yielded ~720 bp products of the ITS1-5.8S-ITS4 region, respectively. The sequenced products showed insertion and substitution incidences which may result in strain diversity and possible variation in disease severity. These strains showed some re...

Rhizoctonia solani Kuhn. is a fungal pathogen that causes sheath blight in rice plants. Sheath disease can reduce production for the people of Indonesia. To prevent blight, fungicides are used. The continuous use synthetic with inappropriate doses have negative impact, so it necessary to look alternatives vegetable fungicides, one which clove leaf (Syzygium aromaticum L.). aim this study was de...

A series of benzimidazole phenylhydrazone derivatives (6a-6ai) were synthesized and characterized by ¹H-NMR, ESI-MS, and elemental analysis. The structure of 6b was further confirmed by single crystal X-ray diffraction as (E)-configuration. All the compounds were screened for antifungal activity against Rhizoctonia solani and Magnaporthe oryzae employing a mycelium growth rate method. Compound ...

Rhizoctonia solani AG1-IA, is the most economically important disease in Texas and other southern rice-producing states. The disease is widespread and occurs every year. The disease was first reported in Japan in 1910, and was soon well established in many Asian countries (Lee and Rush, 1983). The pathogen is capable of infecting rice, soybeans, grass weeds, and hundreds of other plant species ...

Bacillus thuringiensis is the most widely used biological pesticide in the world. It belongs to the Bacillus cereus sensu lato group, which contains six species. Among these six species, B. thuringiensis, B. anthracis, and B. cereus have a low genetic diversity. B. thuringiensis strain HD521 shows maroon colony which is different from most of the B. thuringiensis strains. Strain HD521 also disp...

sheath blight disease, caused by rhizoctonia solani ag-1 ia, is one of the most serious fungal diseases of rice, worldwide. rice resistance is a relative phenomenon and disease response varied (due to complex quantitative inheritance and high environmental diversity), so an accurate disease assessment would be difficult. to detect a reliable reaction of rice in a high level of disease developme...

To find a precise, efficient, and safe method to control rice sheath blight disease (caused by Rhizoctonia solani ), this study used the natural product magnolol as fungicide. Based on characteristics of cell wall-degrading enzymes (CWDEs) released R. during early stages infection, Mag@CMCS@CPSG (magnolol@carboxymethyl chitosan@carboxymethyl cellulose, pectin, sodium alginate, glycerol) film wa...

Cereal Chem. 77(5):535–540 Observations in 1997 indicated a significant reduction in kernel bulk density and head rice yield of rice cultivar LaGrue due to blast (Pyricularia grisea). A more detailed study on rice cultivar M202 in 1998 confirmed such observations but it also showed negative effects of blast on other physical properties of rice. Rough rice from blast-infected panicles was drier ...

Abstract Soil amended with rice straw compost significantly reduced sheath blight severity. The disease caused by the fungus Rhizoctonia solani Kühn is a severe disturbance to cultivation in Indonesia. R. soil borne fungi and highly competitive as saprophyte. In mature compost, propagules form of sclerotia germination were suppressed hyperparasites other biological control agents. Compost matur...

Rice sheath blight, a fungal disease caused by Rhizoctonia solani, seriously threatens rice production. Some of the volatile organic compounds (VOCs) produced microbes are inhibitory to growth plant pathogen, and hence may have potential as environmentally friendly antifungal substances. However, information on effect VOCs released rhizosphere bacteria R. solani is scarce. In this study, from c...