Response to Brown Planthopper Resistance Genes at Rice Seedling Stage

Kim, Woojae; Park, Hyun-Su; HyeonSoon, Kim; KiYong, Ha; Cho, Yeong-Chan; Lee, Jeom-Ho; Kim, Bo-Kyeong

doi:10.9787/kjbs.2016.48.1.029

Cited by 3 publications

(1 citation statement)

References 2 publications

(2 reference statements)

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“…For sufficient inoculation of WBPH, 15 WBPHs were allowed to be concentrated per plant. After WBPH inoculation, resistance scores (RSs) were used to evaluate the response of each line [67]. A resistance score of 9 was assigned when Nagdong, a rice cultivar susceptible to WBPH, died.…”

Section: Evaluation Of Plant Height and Bio-scoringmentioning

confidence: 99%

Investigation of the Relationship between Genetic and Breeding Characteristics of WBPH Behavior according to Resistant Materials in Rice

Park,

Kim,

Jang

et al. 2023

Plants

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Rice accounts for most of the calories consumed by the world’s population. However, the whitebacked planthopper (WBPH), Sogatella furcifera (Horvath), is an insect that can cause rice yield loss. WBPH sucks the stems of rice and negatively affects yield and grain quality. Therefore, numerous insecticides have been developed to control WBPH in rice fields. However, chemical pesticides cause serious problems such as environmental pollution and ecosystem disturbance. Here, we research the possibility of using previously reported rice extracts obtained using methanol, Chrysoeriol 7(C7) and Cochlioquinone-9 (cq-9), as potential insect repellents. WBPH was caged with C7 or cq-9 and monitored, and the WBPH behavior was recorded. The number of WBPHs approaching the periphery of the C7 and cq-9 was very low. In cages containing the C7 and cq-9, only 13 and 7 WBPHs out of 100, respectively, walked around the material. In addition, foliar spraying with C7 and cq-9 did not negatively affect the plant height. The expression level of genes related to resistance was maintained at a high level in the resistant lines when treated with WBPHs alone, but was at a similar level to those of the controls when treated with C7 or cq-9. Interfering with WBPH access did not adversely affect the plant phenotype. Recently, people’s interest in the environment has increased, and the use of plant-derived materials is also increasing. There is a new trend towards using plant extracts as an environmentally friendly means of managing resistance to WBPH during the rice cultivation period, while also avoiding environmental pollution.

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Section: Evaluation Of Plant Height and Bio-scoringmentioning

confidence: 99%

Investigation of the Relationship between Genetic and Breeding Characteristics of WBPH Behavior according to Resistant Materials in Rice

Park,

Kim,

Jang

et al. 2023

Plants

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Breeding of ‘Drimi 1ho’, aJaponicaRice Cultivar Resistant to Brown Planthoppers

Jang

Park

Kim

et al. 2022

Korean J. Breed. Sci.

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Breeding a Giant Embryo and Multi-disease-resistant Rice Cultivar, ‘Drimi4ho’

Kim

Park

Jang

et al. 2023

Korean J. Breed. Sci.

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Rice is an important food crop that feeds most of the world's population. However, due to the increased frequency of pest outbreaks, it is necessary to cultivate complex pest-resistant rice cultivars. A mutant population was derived by culturing tissue of 'Hwayeong' at the Plant Molecular Breeding laboratory of Kyungpook National University in the Republic of Korea. The cultivar 'Drimi4ho', a line that was resistant to complex disease, was finally selected by backcrossing with 'Junam'. The heading date of 'Drimi4ho' is August 11 (107 days after sowing). Drimi4ho' has culm length of 69 cm, panicle length of 21 cm, 16 panicles per hill, 115 spikelets per panicle, a ratio of ripened grain of 92.7%, and a 1,000-grain weight of 24.3 g. No lodging occurred when 'Drimi4ho' was grown in the field by standard fertilization. It is also resistant to leaf/neck blast disease, bacterial blight (K 1 , K 2 , K 3 ), rice dwarf virus, rice black-streaked dwarf virus, rice stripe virus, BPH, and SBPH. 'Drimi4ho' is a round and short-type grain, and is very clear and transparent without chalkiness. In addition, it has excellent physicochemical properties that make up food, so its taste is good. When 'Drimi4ho' was planted under ordinary conditions in the southern mountainous area of Korea, the yield was 5.53 MT/ha (Registration No. 6124).

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Response to Brown Planthopper Resistance Genes at Rice Seedling Stage

Cited by 3 publications

References 2 publications

Investigation of the Relationship between Genetic and Breeding Characteristics of WBPH Behavior according to Resistant Materials in Rice

Investigation of the Relationship between Genetic and Breeding Characteristics of WBPH Behavior according to Resistant Materials in Rice

Breeding of ‘Drimi 1ho’, aJaponicaRice Cultivar Resistant to Brown Planthoppers

Breeding a Giant Embryo and Multi-disease-resistant Rice Cultivar, ‘Drimi4ho’

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