In a survey of plant-parasitic nematodes in agricultural fields, cyst-forming nematodes were found in soil planted bamboo in Korea. The aim of this study was to identify the cyst nematodes based on morphological and molecular characteristics. As the results, the morphology and morphometrics of cysts and second-stage juveniles (J2s) were consistent with those of previous descriptions of .
View Article and Find Full Text PDFCorn (), one of the major food sources it contains rich in fiber and many vitamins, is one of the most widely consumed cereal grains in Republic of Korea. A survey of plant-parasitic nematodes (PPNs) was carried out in corn fields in Goesan, Republic of Korea from August in 2021. PPNs were extracted from the corn roots and soil using modified Baermann funnel methods and were identified using morphological and molecular analyses.
View Article and Find Full Text PDFThe white soybean cyst nematode Heterodera sojae, isolated from the roots of soybean in Korea, is widespread in most provinces of the country and has the potential to be as harmful to soybean as H. glycines. Determining the virulence phenotypes of H.
View Article and Find Full Text PDFPerilla ( (L.) Britton ) is an annual herbaceous crop belonging to Lamiaceae. It is one of the most important crops in Korea.
View Article and Find Full Text PDFThe cyst nematodes and , whose major hosts are sugar beet and clover, respectively, damage a broad range of plants, resulting in significant economic losses. Nematodes synthesize metabolites for organismal development and social communication. We performed metabolic profiling of and in the egg, juvenile 2 (J2), and female stages.
View Article and Find Full Text PDFRice is one of the most important staple grains in Korea and the largest starch source in addition to its usefulness in the production of beverages. Under different areas and environments of production, various pests and diseases including soil-borne plant pathogens such as plant-parasitic nematodes can compromise rice productivity. In a survey to identify plant parasitic nematodes on rice, cyst nematodes were encountered in rice fields that required characterization and identification.
View Article and Find Full Text PDFis a devastating plant parasitic nematode that causes root knot disease in a wide range of plants. In the present study, we investigated host-induced RNA interference (RNAi) gene silencing of chitin biosynthesis pathway genes (chitin synthase, glucose-6-phosphate isomerase, and trehalase) in transgenic tobacco plants. To develop an RNAi vector, ubiquitin (UBQ1) promoter was directly cloned, and to generate an RNAi construct, expression of three genes was suppressed using the GATEWAY system.
View Article and Find Full Text PDFSoybean cyst nematode (, SCN) is the most harmful pathogen of soybean ( (L.) Merr.) worldwide.
View Article and Find Full Text PDFThe soybean cyst nematode, , is a major plant-parasitic nematode that has caused important economic losses to Korea's soybean production. Four species of cyst nematodes, , , , and , all belong to schachtii group are coexist in field soil in Korea. The rapid identification of the nematode is crucial for preventing crop damage and in decision making for controlling this nematode.
View Article and Find Full Text PDF[This corrects the article on p. 297 in vol. 34, PMID: 30140183.
View Article and Find Full Text PDFThe sugar beet cyst nematode, is a well known pathogen on Chinese cabbage in the highland fields of Korea. However, a race of cyst forming nematode with close morphological resemblance to was recently isolated from the same Chinese cabbage fields. Morphological species differentiation between the two cyst nematodes is challenging, with only minor differences between them.
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