Control of Bakanae Disease of Rice by Seed Soaking into the Mixed Solution of Procholraz and Fludioxnil

Park, Woo Sik; Choi, Hyo Won; Han, Seong Suk; Shin, Dong Beum; Shim, Hyeong Kwon; Jung, En Seon; Lee, Se Weon; Lim, Chun Keun; Lee, Yong Hwan

doi:10.5423/rpd.2009.15.2.094

Cited by 31 publications

(20 citation statements)

References 2 publications

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“…Seed treatments with the fungicides have been used widely in most rice growing areas during the last decades. However, due to the occurrence of increasing fungal resistance to these chemicals, the efficacy of these chemicals has been greatly reduced ( Park et al, 2009 ; Yang et al, 2012 ). Seed soaking in hot water (50–55°C) or salty hot water has been used to control seed-borne diseases including bakanae in some areas, but it is not commonly practiced ( Bonman, 1992 ; Tung and Serrano, 2011 ).…”

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confidence: 99%

Biological Control of Rice Bakanae by an Endophytic Bacillus oryzicola YC7007

Hossain

Khan

Chung

et al. 2016

The Plant Pathology Journal

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In our previous study, we reported that a novel endophytic bacterium Bacillus oryzicola YC7007 has suppressed bacterial diseases of rice via induced systemic resistance and antibiotic production. This endophytic strain, B. oryzicola YC7007 was used as a biological control agent against bakanae disease of rice caused by Fusarium fujikuroi, and its mechanism of interaction with the pathogen and the rice was further elucidated. Root drenching with B. oryzicola YC7007 suspension reduced the disease severity of bakanae significantly when compared with the untreated controls. The treatments of B. oryzicola YC7007 suspension (2.0 × 107 cfu/ml) to the rice rhizosphere reduced bakanae severity by 46–78% in pots and nursery box tests containing autoclaved and non-autoclaved soils. Moreover, in the detached rice leaves bioassay, the development of necrotic lesion and mycelial expansion of F. fujikuroi were inhibited significantly by spraying the culture filtrate of B. oryzicola YC7007. Drenching of ethyl acetate extracts of the culture filtrate to the rhizosphere of rice seedlings also reduced the bakanae disease severity in the plant culture dish tests. With the root drenching of B. oryzicola YC7007 suspension, the accumulation of hydrogen peroxide was observed at an early stage of rice seedlings, and a hormonal defense was elicited with and without pathogen inoculation. Our results showed that the strain B. oryzicola YC7007 had a good biocontrol activity against the bakanae disease of rice by direct inhibition, and was also capable of inducing systemic resistance against the pathogen via primed induction of the jasmonic acid pathway.

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confidence: 99%

Biological Control of Rice Bakanae by an Endophytic Bacillus oryzicola YC7007

Hossain

Khan

Chung

et al. 2016

The Plant Pathology Journal

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“…Infected plants have fewer tillers, and plants surviving till maturity bear only empty panicles (Singh and Sunder 2012), resulting in yield loss (Mew and Gonzales 2002;Ou 1985). Low plant survival and high spikelet sterility (Singh and Sunder 2012) may account for yield losses up to 50% in Japan (Ou 1985), 3.0-95% in India (Sunder and Satyavir 1997;Fiyaz et al 2014;Gupta et al 2015), 3.7-14.7% in Thailand, 5-23% in Spain, 40% in Nepal Sunder 1997), 6.7-58.0% in Pakistan (Yasin et al 2003), 75% in Iran (Saremi et al 2008), and to 28.8% in Korea (Park et al 2009). Hot water immersion and fungicide treatment are most common ways for seed disinfection (Hayasaka et al 2001;Gupta et al 2015;Lee et al 2018).…”

Section: Introductionmentioning

confidence: 99%

“…Thermal effect does not reach the pericarp of the severely infected rice seeds. The application of fungicides is not functioning well for destroying the spores of this fungal pathogen, and some pathogen showed resistance to the fungicides (Ogawa 1988;Park et al 2009;Kim et al 2010;Lee et al 2011).…”

Section: Introductionmentioning

confidence: 99%

Mapping of a major QTL, qBK1Z, for bakanae disease resistance in rice

Lee

Kim

et al. 2020

Preprint

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Background: Bakanae disease is a fungal disease of rice (Oryza sativa L.) caused by the pathogen Gibberella fujikuroi (also known as Fusarium fujikuroi). Recently the disease incidence has increased in several Asian countries and continues to spread throughout the world. No rice varieties have been developed yet to be completely resistant to this disease. With increasing need to identify various genetic resources to impart resistance to local elite varieties, this study was carried out to identify novel quantitative trait loci (QTLs) from an indica variety Zenith. Results: We performed a QTL mapping using 180 F2:9 recombinant inbred lines (RILs) derived from a cross between the resistant variety, Zenith, and the susceptible variety, Ilpum. A primary QTL study using the genotypes and phenotypes of the RILs indicated that the locus qBK1z conferring bakanae disease resistance from the Zenith was located in a 2.8 Mb region bordered by the two SSR markers, RM1331 and RM3530 on chromosome 1. The log of odds (LOD) score of qBK1z was 13.43, accounting for 30.9% of the total phenotypic variation. A finer localization of qBK1z was delimited at an approximate 730 kb interval in the physical map between Chr01_1435908 (1.43 Mbp) and RM10116 (2.16 Mbp).Conclusion: The development of a rice variety with a higher level of resistance against bakanae disease is a major challenge in many rice growing countries. Introducing qBK1z or pyramiding with other previously identified QTLs could provide effective genetic control of bakanae disease in rice.

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“…키다리병에 대한 효과 적인 방제법으로는 온탕침법이나 약제소독 (Park et al, 2003;Park et al, 2008)에 의한 종자소독제에 의존되지만 키다리 병원성의 새로운 균주의 분화로 기존 종자소독제에 대한 내성 Kim et al, 2010;Ogawa and Takeda, 1990;Park et al, 2009;Park et al, 2008;Wulff et al, 2010)때문에 매년 피해면적 증가에 따른 범국가적인 방제 대책이 강구되고 있다. 마늘 추출액에 의한 키다리방제효 과가 발표되어 친환경적인 방제약제개발 가능성도 제시되었 으나 (Sung and Choi, 2004 육상태를 광학현미경 400배 배율로 검경하였다.…”

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Bakanae Disease Reduction Effect by Use of Silicate Coated Seed in Wet Direct-Seeded Rice

Kang¹,

Kim²,

Kim³

et al. 2016

Korean J. Crop Sci.

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To investigate the effect of soluble silicate zeolite dressing of the rice against bakanae disease, field trial in reclaimed land and in vitro were carried out. The coated rice seeds (SCS) which were dressed with the mixture of 25% silicic acids (binder), and the zeolite (coating powder). In wet direct seeding, uniform scattering of rice seeds on the soil surface and the better seedling establishment were shown in SCS treatment plots. The incidence of bakanae disease began from the mid tillering stage toward the heading stage. Around heading stage, the ratio of infected tillers reached its highest point by 9.9% in non-SCS treatment plots. While, in SCS treatment plots, the ratio of infected tillers was no more than 0.01%. The vitality of the pathogenic fungi of bakanae disease in the SCS and non-SCS samples were assessed. Samples were incubated for one week keeping proper humidity at 30°C after inoculated with panicles of infected rice plants from experimental field plots. In non-SCS treatment, pinkish colonies were formed on the grain surface of panicle of infected plants, and mycelium, macro-conidia and micro-conidia were developed actively inside part of infected grain inoculated. While in SCS treatment, micro-conidia and mycelium were not survived and the growth of macro-conidia, mycelia were greatly inhibited and withered. Based on the results, it is concluded that the environmental friendly control of bakanae disease by use of SCS is possible and soluble silicate can be applied as agents for replacement of seed disinfection.

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Control of Bakanae Disease of Rice by Seed Soaking into the Mixed Solution of Procholraz and Fludioxnil

Cited by 31 publications

References 2 publications

Biological Control of Rice Bakanae by an Endophytic Bacillus oryzicola YC7007

Biological Control of Rice Bakanae by an Endophytic Bacillus oryzicola YC7007

Mapping of a major QTL, qBK1Z, for bakanae disease resistance in rice

Bakanae Disease Reduction Effect by Use of Silicate Coated Seed in Wet Direct-Seeded Rice

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