First Report of Rust Caused by on L. in Korea.

Fig (Ficus carica L.) belonging to the Moraceae family is cultivated worldwide, with its primary production areas located in the Mediterranean region (Tous and Fergusen 1996). Yeongam-gun is a significant region for fig cultivation in Korea, accounting for 42% of the country's total fig cultivation area with approximately 1,400 fields (453ha, production yield 6000 tons).

First Report of causing Anthracnose of chili pepper in South Korea.

Anthracnose, a destructive fungal disease, poses a significant threat to chili pepper (Capsicum annuum L.) production worldwide (de Silva et al. 2019).

First Report of Root and Collar Rot caused by on ⨯ 'Silver Star' in Korea.

⨯ 'Silver Star' (a cross between and ) from the Crassulaceae family, are an evergreen succulent with lotus constellation-shaped flowers, making it consumer favorite ornamental plant in Korea. In 2019, Korea's ornamental production was estimated at KRW 517.4 billion (EUR 382 million), from 4,244 ha of farming area according to the Ministry of Agriculture, Food and Rural Affairs of Korea.

Occurence of leaf spot on Narrow-head ragwort () caused by in Korea.

Narrow-head ragwort ( (Maxim.) Matsum. & Koidz.

First report of Choanephora rot on Lettuce ( L.) caused by in Korea.

Lettuce ( L.) is a vegetable belonging to the family Asteraceae, and one of the major leafy vegetables in Korea. Lettuce has long been consumed as a fresh vegetable.

First Report of causing Fusarium wilt on in South Korea.

Soybean ( L.) is one of the most important crops worldwide. In South Korea, three species of have been reported as causal pathogens of Fusarium wilt of soybean (KSPP, 2021).

First Report of causing Anthracnose on in South Korea.

Sorghum ( (L.) Moench) is one of the top five cereal crops in the world, but the cultivation area in Korea is estimated to be about 3,000 ha (MIFFAF, 2012). In August 2014, anthracnose symptoms on sorghum leaves were observed in two fields in Yecheon (36.

Species composition of and fumonisin production by the Fusarium fujikuroi species complex isolated from Korean cereals.

To assess the risk of fumonisin contamination in Korean cereals, we isolated colonies of the Fusarium fujikuroi species complex (FFSC) from barley, maize, rice and soybean samples from 2011 to 2015. A total of 878 FFSC strains were isolated mostly from maize and rice, and species identity of the isolates were determined using the DNA sequence of the translation elongation factor 1-α (TEF-1α) and RNA polymerase II (RPB2) genes. Fusaria recovered from Korean cereals included F.

Characterization of DA12 Showing Potent Antifungal Activity against Mycotoxigenic Species.

In an attempt to develop a biological control agent against mycotoxigenic species, we isolated strain DA12 from soil and explored its antimicrobial activities. DA12 was active against the growth of mycotoxigenic , , , and both and (maize). Further screening using dual culture extended the activity range of strain DA12 against other fungal pathogens including , , , , , and .

Mycobiota of ground red pepper and their aflatoxigenic potential.

To investigate contamination of ground red pepper with fungi and mycotoxin, we obtained 30 ground red pepper samples from 15 manufacturers in the main chili-pepper-producing areas in Korea. Fungal contamination was evaluated by spreading diluted samples on potato dextrose agar plates. The total fungi counts ranged from 0 to 7.

Occurrence of Toxigenic among Small Grain Cereals in Korea.

species complex (FGSC) causes Fusarium head blight in small grain cereals. To date, four species (, , , and ) belonging to FGSC frequently occur in Korean cereals. In addition, we first reported the occurrence of additional species ( ) within FGSC, which was isolated from barley, corn, and rice in Korea.

Occurrence of Soybean Sleeping Blight Caused by Septogloeum sojae in Korea.

Sleeping blight was observed on soybean plants grown in Yanggu, Suwon and Geumsan from 2005 to 2011. Symptoms developed on stems and pods of affected soybean plants. Five fungal isolates were obtained from the diseased plants and identified as Septogloeum sojae based on their morphological, cultural and molecular characteristics.

Occurrence of Violet Root Rot on Membranous Milk Vetch Caused by Helicobasidium mompa in Korea.

Severe violet root rot occurred in a field of membranous milk vetch in Bonghwa, Korea, in October 2010. Two fungal isolates from the diseased plants were identified as Helicobasidium mompa based on their morphological, cultural, and molecular characteristics. This is the first report that H.

Occurrence of Clubroot on Shepherd's-purse Caused by Plasmodiophora brassicae.

Clubroot symptoms were frequently observed on roots of shepherd's-purse (Capsella bursa-pastoris) grown in a field in Nonsan, Chungnam province, Korea in March, 2009. Many resting spores were found in the cells of the root gall tissues collected from the field. The clubroot pathogen was identified as Plasmodiophora brassicae based on its morphological and pathological characteristics.

Identification of Calonectria colhounii Associated with Basal Stem Rot on Blueberry Seedlings Imported from the United States of America.

Basal stem rot symptoms were found on blueberry seedlings imported from the United States of America in 2008. The fungus obtained from the diseased seedlings was identified as Calonectria colhounii based on morphological and molecular characteristics. The consignments of the blueberry seedlings infected with C.

Leaf Spot of Yam Caused by Pseudophloeosporella dioscoreae in Korea.

Leaf spot symptoms were frequently observed on yam plants grown in the Yeoju area in Korea during a disease survey in 2008. A total of five isolates of Pseudophloeosporella sp. were obtained from the infected leaves of yam plants.

Occurrence of anthracnose on highbush blueberry caused by colletotrichum species in Korea.

A total of 82 isolates of Colletotrichum species were obtained from anthracnose symptoms of highbush blueberry trees grown in the Gochang area of Korea during a disease survey in 2008. Out of the isolates, 75 were identified as Colletotrichum gloeosporioides and the others as C. acutatum based on their morphological and cultural characteristics.

Mating Types and Optimum Culture Conditions for Sexual State Formation of Fusarium fujikuroi Isolates.

Twenty-five isolates of Fusarium fujikuroi acquired from rice seeds and rice plants evidencing symptoms of Bakanae disease were evaluated to determine their mating types and characterize the formation of their sexual state. The mating types of the isolates were evaluated via multiplex PCR with the diagnostic primers of the mating-type (MAT) region: GFmat1a, GFmat1b, GFmat2c, and GFmat2d. Among the 25 isolates, 11 were identified as MAT-1 (male), and 14 as MAT-2 (female).

Occurrence of Fuligo gyrosa Causing Slime Mold of Oriental Melon.

Recently, a severe slime mold infestation affected oriental melon plants in fields in Chilgok county, Gyeongbuk province, Korea. Specimens were collected from the fields and examined for identification. A species of Myxomycetes, Fuligo gyrosa, was identified based on its morphological characteristics.

Occurrence of Dumontinia tuberosa in Korea.

Thirty-seven single spore isolates were obtained from specimens of ascomycetous fruiting bodies collected from Mt. Suri, Anyang in Korea. The fungal specimens and isolates were identified as Dumontinia tuberosa based on their morphological and cultural characteristics.

Occurrence of Clubroot on Pak-Choi Caused by Plasmodiophora brassicae.

Clubroot symptoms occurred severely on roots of Pak-Choi (Brassica campestris ssp. chinensis) grown in greenhouses in Gwangju city, Gyeonggi province, Korea in September, 2008. The incidence of the disease symptoms reached as high as 90% in three greenhouses investigated.

Occurrence of Anthracnose on Welsh Onion Caused by Colletotrichum circinans.

Anthracnose occurred frequently on leaf sheaths of Welsh onions grown in Gangwha island, Korea in November, 2007. The disease incidence was as high as 30% in five fields investigated. A total of 20 single spore isolates of Colletotrichum species were obtained from the affected plants, and all the isolates were identified as Colletotrichum circinans based on their morphological and cultural characteristics.

Phycicoccus aerophilus sp. nov., isolated from air.

A Gram-positive, short rod-shaped, non-spore-forming bacterium, designated 5516T-20(T), was isolated from an air sample. The results of 16S rRNA gene sequence analyses showed that strain 5516T-20(T) belonged to the family Intrasporangiaceae, having the highest sequence similarities (97.5 and 96.