Byung‐Ho Lee

Kyungpook National University

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Sung‐Eun Lee

Kyungpook National University

Chung Gyoo Park

Gyeongsang National University

Min‐Goo Park

Jeonbuk National University

Yonglin Ren

Murdoch University

Bongsu Kim

Electronics and Telecommunications Research Institute

Jeong‐Oh Yang

Animal and Plant Quarantine Agency

Tae Hyung Kwon

Oak Ridge Associated Universities

Dong‐Bin Kim

Catholic University of Korea

Kyeongnam Kim

Kyungpook National University

Dong-Seong Sohn

Ulsan National Institute of Science and Technology

Cooperative Institutions

Seoul National University

Kyungpook National University

Gyeongsang National University

Yonsei University

Pusan National University

Korea Atomic Energy Research Institute

Korea University

Animal and Plant Quarantine Agency

Chungbuk National University

Jeonbuk National University

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Post-fumigation sub-lethal activities of phosphine and ethyl formate on survivorship, fertility and female sex pheromone production of Callosobruchus chinensis (L.)

Research Square (Research Square) (2022)

Kashinath Chiluwal Byung‐Ho Lee Tae Hyung Kwon Junheon Kim Chung Gyoo Park

Abstract Phosphine (PH 3 ) and ethyl formate (EF), the two popular fumigant disinfectants of stored product insect pests, are primarily evaluated for their knock down effects without considering their post-fumigation sub-lethal activities. The sub-lethal activities (adult survivorship, fecundity, sterility and female sex pheromone production) of the fumigants were evaluated on a field-to-storage insect pest adzuki bean beetle, Callosobruchus chinensis (L.). The adults’ survivorship and female fecundity, both were dose-dependently affected by sub-lethal PH 3 and EF fumigation exposures. Hatchability of the eggs laid by fumigated female adults were also significantly affected. Gas-chromatography mass-spectrometry analysis of solid-phase micro-extraction from virgin fumigated C. cinensis females revealed that the PH 3 LC 25 (the lethal concentration required to kill the 25% of the population) fumigated female C. chinensis released significantly less amount of the pheromone components. In contrast, EF LC 25 exposure did not affect the pheromone release. This study unveils the facts that the EF and PH 3 fumigation have detrimental bioactivities against C. chinensis . Notably, this suggests to consider the sub-lethal EF and PH 3 fumigation rather than the dose required to instantly kill all the C. chinensis individuals for disinfestation of stored adzuki bean.

Callosobruchus chinensis

Ethyl formate

10.21203/rs.3.rs-2229063/v1

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Efficacy of Phosphine and Ethyl Formate Fumigation Using High Oxygen Against Phthorimaea operculella (Zeller)

한국응용곤충학회 학술발표회 (2014)

Jun-Won Park Seon‐Woo Lee Hyun Kyung Kim Juil Kim Byung‐Ho Lee

Phthorimaea operculella

Ethyl formate

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Ethyl Formate as a New Sanitary Treatment for Disinfesting the Hitchhiking Insect Pest Halyomorpha halys on Imported Nonfood Agricultural Machinery

Applied Sciences (2023)

Kyeongnam Kim Dong‐Bin Kim Byung‐Ho Lee Gwang Hyun Roh Kyung Won Kim

With an increase in the international trade of agricultural and non-agricultural products, there is an increase in the possibility of introducing hitchhiking insect pests such as Halyomorpha halys, which has been detected on imported vehicles and agricultural machinery. Although methyl bromide (MB) is provisionally used to control invasive pests, it is classified as a restricted chemical owing to its potential to deplete the ozone layer and pose health risks to humans in cases of inadequate ventilation, as well as concerns regarding consumer safety. Therefore, this study investigated ethyl formate’s (EF’s) efficacy against H. halys and its efficacy and sorption, as an alternative to MB, on main electronic components, including alternators, ignition coils, and motors. Fumigation with 35 and 70 g/m3 EF for 4 h at 15 °C had no damage on the main electronic components as evaluated using various operation tests. In a commercial trial, H. halys infestation was effectively controlled with 35 g/m3 EF fumigated for 4 h at 23 °C using a 30 m3 polyvinyl chloride tarpaulin fumigation chamber. After ventilation, the EF concentration decreased below the safety level within 10 min and reached the zero level within 40 min for worker safety. This novel sanitary treatment using EF fumigation on imported agricultural machinery could be an effective method without causing mechanical damage.

Ethyl formate

10.3390/app132111764

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Citations (1)

Modeling of creep behavior of Zircaloy-4 by considering metallurgical effect

Annals of Nuclear Energy (2002)

Byung‐Ho Lee Yang-Hyun Koo Jin-Sik Cheon Dong-Seong Sohn

Rod

Zirconium alloy

Cladding (metalworking)

10.1016/s0306-4549(01)00030-5

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The efficacy of phosphine and ethyl formate to all stage of Drosophila suzukii (Diptera: Drosophilidae) for replacement methyl bromide fumigation

Tae Hyung Kwon Byung‐Ho Lee Chung Gyoo Park

The spotted wing drosophila (SWD), Drosophila suzukii, is a severe pest of berry fruits like strawberry, blueberry, sweet cherry and grape in terms of quarantine. For the disinfestation of SWD, methyl bromide (MeBr) is the only option in quarantine practice. However, MeBr's current use will be phased out due to chronic inhalation toxicity to fumigators and related worker as well as ozone depletion properties. To replace MeBr, we evaluated the efficacy of ethyl formate (EF) and phosphine gas (PH3) to all different developmental stages of SWD at practical fumigation condition (>25 ℃). To achieve complete control of all stages of SWD, PH3 required > 6 hr exposure when applied at > 1.0 g m-3. In case of 4hr EF fumigation, the LCt99 (LCt99, 99% lethal concentration × time) of EF to egg, larvae and pupae of SWD was 198.09, 77.42 and 115.55 g·h m-3, respectively.

Drosophila Suzukii

Ethyl formate

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Involvement of GADD153 and cardiac ankyrin repeat protein in cardiac ischemia-reperfusion injury

Experimental & Molecular Medicine (2009)

Mi Jin Lee Yong-Keun Kwak Kyung-Ran You Byung‐Ho Lee Dae-Ghon Kim

Oxidative stress is critical for causing cardiac injuries during ischemia-reperfusion (IR), yet the molecular mechanism for this remains unclear. In the present study, we observe that hypoxia and reoxygenation, a component of ischemia, effectively induces apoptosis in the cardiac myocytes from neonatal rats and it concomitantly leads to induction of GADD153, an apoptosis-related gene. Furthermore, IR injury of rat heart showed a GADD153 overexpression in the ischemic area where the TUNEL reaction was positive. A downregulation of cardiac ankyrin repeat protein (CARP) was also observed in this ischemic area. Promoter deletion and reporter analysis revealed that hypoxia transcriptionally activates a GADD153 promoter through the AP-1 element in neonatal cardiomyocytes. Ectopic overexpression of GADD153 resulted in the downregulation of CARP expression. Accordingly, the induction of GADD153 mRNA were followed by the CARP down-regulation in an in vivo rat coronary ischemia/reperfusion injury model. These results suggest that GADD153 over-expression and the resulting downregulation of CARP may have causative roles in apoptotic cell death during cardiac IR injury.

Hypoxia

Ankyrin

10.3858/emm.2009.41.4.027

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Citations (18)

Analysis of fission gas release and gaseous swelling in UO2 fuel under the effect of external restraint

Journal of Nuclear Materials (2000)

Yang-Hyun Koo Byung‐Ho Lee Dong-Seong Sohn

Burnup

Pellet

Isothermal process

10.1016/s0022-3115(00)00034-9