Identification of Fusarium fujikuroi Isolated from Barnyard Grass and Possibility of Inoculum Source of Bakanae Disease on Rice

Choi, Hyo Won; Lee, Yong Hwan; Hong, Sung Kee; Kim, Wan Gyu; Lee, Young Kee; Chun, Se Chul

doi:10.5423/rpd.2011.17.1.082

Cited by 2 publications

(2 citation statements)

References 9 publications

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“…The bakanae pathogen may also survive and be present as inoculum in overwintering plant debris or in soil ( Kanjanasoon, 1965 ; Su et al, 1979 ; Sunder, 1997 ). In addition, Choi et al (2011) isolated and confirmed the pathogenicity of the bakanae pathogen from barnyard grass, suggesting the possibility of barnyard grass as an alternative inoculum source.…”

Section: Epidemiology Of Bakanaementioning

confidence: 85%

Past and Future Epidemiological Perspectives and Integrated Management of Rice Bakanae in Korea

et al. 2023

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In the past, rice bakanae was considered an endemic disease that did not cause significant losses in Korea; however, the disease has recently become a serious threat due to climate change, changes in farming practices, and the emergence of fungicide-resistant strains. Since the bakanae outbreak in 2006, its incidence has gradually decreased due to the application of effective control measures such as hot water immersion methods and seed disinfectants. However, in 2013, a marked increase in bakanae incidence was observed, causing problems for rice farmers. Therefore, in this review, we present the potential risks from climate change based on an epidemiological understanding of the pathogen, host plant, and environment, which are the key elements influencing the incidence of bakanae. In addition, disease management options to reduce the disease pressure of bakanae below the economic threshold level are investigated, with a specific focus on resistant varieties, as well as chemical, biological, cultural, and physical control methods. Lastly, as more effective countermeasures to bakanae, we propose an integrated disease management option that combines different control methods, including advanced imaging technologies such as remote sensing. In this review, we revisit and examine bakanae, a traditional seed-borne fungal disease that has not gained considerable attention in the agricultural history of Korea. Based on the understanding of the present significance and anticipated risks of the disease, the findings of this study are expected to provide useful information for the establishment of an effective response strategy to bakanae in the era of climate change.

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Section: Epidemiology Of Bakanaementioning

confidence: 85%

Past and Future Epidemiological Perspectives and Integrated Management of Rice Bakanae in Korea

et al. 2023

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“…They reported many monocotyledonous weeds in California rice fields should be evaluated as potential hosts of the bakanae pathogen in further study. Bakanae symptoms were observed in barnyard grass in a paddy field in Korea, in 2009 [ 74 ]. Fusarium species were isolated from the infected stem of barnyard grass and they were identified as F. fujikuroi .…”

Section: Host Range Of the Pathogenmentioning

confidence: 99%

Current Studies on Bakanae Disease in Rice: Host Range, Molecular Identification, and Disease Management

An,

Murugesan,

Choi

et al. 2023

Mycobiology

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The seed borne disease such as bakanae is difficult to control. Crop yield loss caused by bakanae depending on the regions and varieties grown, ranging from 3.0% to 95.4%. Bakanae is an important disease of rice worldwide and the pathogen was identified as Fusarium fujikuroi Nirenberg (teleomorph: Gibberella fujikuroi Sawada). Currently, four Fusaria ( F. fujikuroi, F. proliferatum, F. verticillioides and F. andiyazi ) belonging to F. fujikuroi species complex are generally known as the pathogens of bakanae. The infection occurs through both seed and soil-borne transmission. When infection occurs during the heading stage, rice seeds become contaminated. Molecular detection of pathogens of bakanae is important because identification based on morphological and biological characters could lead to incorrect species designation and time-consuming. Seed disinfection has been studied for a long time in Korea for the management of the bakanae disease of rice. As seed disinfectants have been studied to control bakanae, resistance studies to chemicals have been also conducted. Presently biological control and resistant varieties are not widely used. The detection of this pathogen is critical for seed certification and for preventing field infections. In South Korea, bakanae is designated as a regulated pathogen. To provide highly qualified rice seeds to farms, Korea Seed & Variety Service (KSVS) has been producing and distributing certified rice seeds for producing healthy rice in fields. Therefore, the objective of the study is to summarize the recent progress in molecular identification, fungicide resistance, and the management strategy of bakanae.

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Identification of Fusarium fujikuroi Isolated from Barnyard Grass and Possibility of Inoculum Source of Bakanae Disease on Rice

Cited by 2 publications

References 9 publications

Past and Future Epidemiological Perspectives and Integrated Management of Rice Bakanae in Korea

Past and Future Epidemiological Perspectives and Integrated Management of Rice Bakanae in Korea

Current Studies on Bakanae Disease in Rice: Host Range, Molecular Identification, and Disease Management

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