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Journal of Forestry Research 2021年第3期32卷 1235-1240页

作者： Kang-Won Lee joon-mo koo Jae-Dong Kim Hui-Lin Han Kyu-Tek Park Holoce Ecosystem Conservation Research Institution HoengseongGangweon Province 225-841Republic of Korea Department of Plant Medicine Chungbuk National UniversityCheongju28644Republic of Korea Department of Applied Biology College of Agriculture and Life ScienceChungnam National UniversityDaejeon 34134Republic of Korea School of Forestry Northeast Forestry UniversityHarbin 150040China Key Laboratory of Sustainable Forest Ecosystem Management-Ministry of Education Northeast Forestry UniversityHarbin 150040People’s Republic of China Bioresource and Environmental Center Incheon National UniversityIncheon 22012Republic of Korea

A new species of Zanclognatha Lederer,1857 of the family Erebidae,*** sp.n.,one species of Family Erebidea,Asota egens(Walker,1854)and two species of Family Noctuidae:Meganephria retinea Gyulai and Ronkay,1999 and Amphipyra subrigua Bremer and Grey,1853,are reported for the first time from *** addition,larval feeding habits with their host plants for three species are newly recognized from *** of adults,larvae for Zanclognatha querciella and Meganephria retinea,and the genitalia of male or female for all species are provided.

关键词： Host plants New species New records Korean peninsula Taxonomy

Environmentally adaptive reshaping of plant photomorphogenesis by karrikin and strigolactone signaling

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Journal of Integrative Plant Biology 2024年第5期66卷 865-882页

作者： Young-joon Park Bo Eun Nam Chung-mo Park Department of Smart Farm Science Kyung Hee UniversityYongin 17104Korea Departmentof Biological Sciences Seoul National UniversitySeoul 08826Korea Department of Chemistry Seoul National UniversitySeoul 08826Korea

Coordinated morphogenic adaptation of growing plants is critical for their survival and propagation under fluctuating *** morphogenic responses to light and warm temperatures,termed photomorphogenesis and thermomorphogenesis,respectively,have been extensively studied in recent *** photomorphogenesis,plants actively reshape their growth and developmental patterns to cope with changes in light ***,photomorphogenesis is closely associated with diverse growth hormonal ***,accumulating evidence indicates that light-directed morphogenesis is profoundly affected by two recently identified phytochemicals,karrikins(KARs)and strigolactones(SLs).KARs and SLs are structurally related butenolides acting as signaling molecules during a variety of developmental steps,including seed *** receptors and signaling mediators have been identified,and associated working mechanisms have been explored using gene-deficient mutants in various plant *** particular interest is that the KAR and SL signaling pathways play important roles in environmental responses,among which their linkages with photomorphogenesis are most comprehensively studied during seedling *** this review,we focus on how the phytochemical and light signals converge on the optimization of morphogenic *** also discuss molecular mechanisms underlying the signaling crosstalks with an aim of developing potential ways to improve crop productivity under climate changes.

关键词： karrikins morphogenic adaptation photomorphogenesis seedling establishment strigolactones

Callus proliferation-induced hypoxic microenvironment decreases shoot regeneration competence in Arabidopsis

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molecular Plant 2024年第3期17卷 395-408页

作者： Dohee koo Hong Gil Lee Soon Hyung Bae Kyounghee Lee Pil joon Seo Department of Chemistry Seoul National UniversitySeoul 08826Korea Plant Genomics and Breeding Institute Seoul National UniversitySeoul 08826Korea Research Institute of Basic Sciences Seoul National UniversitySeoul 08826Korea

Plants are aerobic organisms that rely on molecular oxygen for respiratory energy *** conditions,with oxygen levels ranging between 1%and 5%,usually limit aerobic respiration and affect plant growth and ***,we demonstrate that the hypoxic microenvironment induced by active cell proliferation during the two-step plant regeneration process intrinsically represses the regener-ation competence of the callus in Arabidopsis *** showed that hypoxia-repressed plant regener-ation is mediated by the RELATED TO APETALA2.12(RAP2.12)protein,a memberof the Ethylene Response Factor VIl(ERF-Vll)*** found that the hypoxia-activated RAP2.12 protein promotes salicylic acid(SA)biosynthesis and defense responses,thereby inhibiting pluripotency acquisition and de novo shoot regeneration in *** and genetic analyses revealed that RAP2.12 could bind directly to the SALICYLIC ACID INDUCTION DEFICIENT 2(SID2)gene promoter and activate SA biosynthesis,repressing plant regeneration possibly via a PLETHORA(PLT)-dependent ***,the rap2.12 mutant calli exhibits enhanced shoot regeneration,which is impaired by SA *** together,these find-ings uncover that the cell proliferation-dependent hypoxic microenvironment reduces cellular pluripotency and plant regeneration through the RAP2.12-SID2 module.

关键词： callus cell proliferation-induced hypoxia SID2 plant regeneration salicylic acid RAP2.12

Fabrication of sintering-free flexible copper nanowire/ polymer composite transparent electrodes with enhanced chemical and mechanical stability

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Nano Research 2016年第7期9卷 2162-2173页

作者： Cho Rong Chu Changsoo Lee Jahyun koo Hyuck mo Lee Department of Materials Science and Engineering KAIST 291 Daehak-ro Yuseong-gu Daejeon 305-701 Republic of Korea

The thermal decomposition synthesis of long copper nanowires （CuNWs） was achieved by controlling the synthesis parameters. A detailed study was performed to determine the effect of the molar ratio of copper chloride to nickel acetylacetonate, temperature, and stirring rate on the final shape of the products. Transparent electrodes （TEs） were fabricated by wet treatment with acetic acid （AA）, without using a sintering process. The low oxidation stability and high surface roughness are the main disadvantages of the CuNW TEs, which limit their applications. In order to overcome these issues, we prepared CuNW/polymer composite TEs by partial embedding of the CuNWs into poly（methyl methacrylate）（PMMA） on poly（ethylene terephthalate）（PET） substrates. The CuNW/PMMA composite TEs exhibit excellent optoelectronic performance （91.3% at 100.7 ff2/sq）, low surface roughness （4.6 nm in height）, and good mechanical and chemical stability as compared with CuNW TEs. On the basis of these properties, we believe that CuNW-based composite TEs could serve as low-cost materials for a wide range of new optoelectronic devices.

关键词： copper nanowires nanowire/polymercomposite transparent electrode chemical stability mechanical stability

Enhanced refolding of lysozyme with imidazolium-based room temperature ionic liquids: Effect of hydrophobicity and sulfur residue

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Science China Chemistry 2012年第8期55卷 1657-1662页

作者： BAE Sang-Woo CHANG Woo-Jin koo Yoon-mo HA Sung Ho Department of Biological Engineering Inha University Incheon 402-751 Republic of Korea Department of Mechanical Engineering School of Freshwater Sciences University of Wisconsin-Milwaukee Milwaukee WI 53201-0413 USA Department of Chemical Engineering and Nano-Bio Technology Hannam University Daejeon 305-811 Republic of Korea

The expression of recombinant proteins in microorganism frequently leads to the formation of insoluble aggregates, inclusion bodies （IBs）. Thus, the additional in vitro protein refolding process is required to convert inactive IBs into water-soluble active proteins. This study investigated the effect of sulfur residue and hydrophobicity of imidazolium-based room temperature ionic liquids （RTILs） on the refolding of lysozyme as a model protein in the batch dilution method which is the most commonly used refolding method. When lysozyme was refolded in the refolding buffer containing [BF4]-based RTILs with a systematic variety of alkyl chain on cations varying from two to eight, less hydrophobic imidazolium cations having shorter alkyl chains were effective to facilitate lysozyme refolding. Compared to the conventional refolding buffer, 2 times higher lysozyme re- folding yield was obtained in l-ethyl-3-methylimidazolium tetrafluoroborate （[EMIM][BF4]） containing refolding buffer. The refolding yield of lysozyme was even more increased by 2.5 times when 1-butyl-3-methylimidazolium methylsulfate （[BMIM][MS]） containing sulfur residue on anion was used. The sulfur residue in [BMIM][MS] is supposed to improve the refolding yield of lysozyme which has 4 intrarnolecular disulfide bonds. For dilution-based refolding of lysozyme, the opti- mum concentrations of RTILs in refolding buffer were found to be 1.0 M [EMIM][BF4] and 0.5 M [PMIM][MS], respectively. The optimum temperate for dilution-based refolding of lysozyme with RTILs was 4 ℃.

关键词： protein refolding room temperature ionic liquid dilution refolding lysozyme hydrophobicity sulfur

Recent Progress in Exploiting Small molecule Peptides as Supramolecular Hydrogelators

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Chinese Journal of Polymer Science 2017年第10期35卷 1194-1211页

作者： Hao Su Yuzhu Wang Caleb F.Anderson Jin mo koo Han Wang Honggang Cui Department of Chemical and Biomolecular Engineering The Johns Hopkins University Baltimore Maryland 21218 USA Institute for NanoBio Technology The Johns Hopkins University Baltimore Maryland 21218 USA Department of Oncology and Sidney Kimmel Comprehensive Cancer Center Johns Hopkins University School of Medicine Baltimore MD 21205 USA Center for Nanomedicine The Wilmer Eye Institute Johns Hopkins University School of Medicine 400 North Broadway Baltimore MD 21231 USA

Small molecule peptides and their derivatives are an emerging class of supramolecular hydrogelators that have attracted rapidly growing interest in the fields of drug delivery and regenerative medicine due to their inherent biodegradability and biocompatibility, as well as versatility in molecular design and ease of synthesis. Built upon the directional, intermolecular interactions such as hydrogen bonding and π-π stacking, peptide-based molecular units can associate in aqueous solution into filamentous assemblies of various sizes and shapes. Under appropriate conditions, these filamentous assemblies can percolate into a 3D network with materials properties tailorable for specific biomedical applications. In this review, we survey the literature published over the past three years in the development of peptide-based hydrogelators for biomedical applications. We highlight several representative examples and center our discussion on the fundamentals of molecular design, assembly, and gelation conditions.

关键词： PNIPAM spheres reversible assembled colloidal Highly ordered assembly leaving anhydride

Septic shock due to Granulicatella adiacens after endoscopic ultrasound-guided biopsy of a splenic mass:A case report

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World Journal of Gastroenterology 2021年第8期27卷 751-759页

作者： Seo-Yeon Cho Eunae Cho Chang-Hwan Park Hee-joon Kim Joo-Yeon koo Division of Gastroenterology Department of Internal MedicineChonnam National University HospitalGwangju 61469South Korea Department of Surgery Chonnam National University HospitalGwangju 61469South Korea Department of Pathology Chonnam National University HospitalGwangju 61469South Korea

BACKGROUND Endoscopic ultrasound-guided fine needle aspiration or biopsy(EUS-FNA or FNB)has become a popular method for diagnosing various lesions of the gastrointestinal tract and surrounding tissue due to the accuracy and *** the best of our knowledge,no case report of severe infection after EUS-FNB of a solid lesion in the spleen has been ***,we report a rare case of septic shock after EUS-FNB of a splenic *** SUMMARY A 45-year-old male patient presented to the outpatient clinic due to an incidentally detected splenic mass.A definitive diagnosis could not be established based on the abdominal magnetic resonance *** of the spleen showed a 6 cm-sized,relatively well-demarcated,heterogeneous mass,and EUS-FNB with a 22G needle was *** days after the procedure patient developed septic shock and a splenic abscess was *** culture revealed growth of Granulicatella *** the treatment with antibiotics the patient underwent surgical resection,and the pathological examination showed diffuse large B-cell *** patient received chemotherapy and he is in complete *** Infection of a splenic mass after EUS-FNB is a rare complication and prophylactic antibiotics might be considered.

关键词： Endoscopic ultrasound Endoscopic ultrasound-guided fine needle biopsy Splenic neoplasms Lymphoma Septic shock Case report

Treatment of Bone Waste Using Thermal Plasma Technology

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Plasma Science and Technology 2007年第5期9卷 616-618页

作者： KI Ho Beom KI MWoo Hyung KI MBong Soo koo Hyung joon 李明伟 CHAE Jae Ou Department of Mechanical Engineering Inha UniversityIncheon 402-751South Korea

Daily meat consumption produces a lot of bone waste, and dumped bone waste without treatment would result in environmental hazards. Conventional treatment methods of waste bones have some disadvantages. Herein, an investigation of bone waste treated using thermal plasma technology is presented. A high-temperature plasma torch operated at 25.2 kW was used to treat bone waste for seven minutes. The bone waste was finally changed into vitric matter and lost 2/3 of its weight after the treatment. The process was highly efficient, economical, convenient, and fuel-free. This method could be used as an alternative for disposal of bone waste, small infectious animals, hazardous hospital waste, etc.

关键词： thermal plasma bone waste plasma torch solid waste treatment

Compensating the impurities on the Cu surface by moFs for enhanced hydrocarbon production in the electrochemical reduction of carbon dioxide

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Journal of Energy Chemistry 2022年第3期31卷 68-73,I0003页

作者： Shin joon Kang Jong Ho Won Hansaem Choi Woohyeong Sim Mun Kyoung Kim Siraj Sultan Youngkook Kwon Hyung mo Jeong School of Mechanical Engineering and Department of Smart Fab.Technology Sungkyunkwan University2066 Seobu-roJangan-guSuwon 16419Republic of Korea Department of Chemistry Kookmin University77 Jeongneung-roSeongbuk-guSeoul 02707Republic of Korea School of Energy and Chemical Engineering Emergent Hydrogen Technology R&D CenterUlsan National Institute of Science and Technology50 UNIST-gilUlsan 44919Republic of Korea

Copper(Cu)provides a cost-effective means of producing value-added fuels through the electrochemical reduction of carbon dioxide(CO_(2)RR).However,we observed the production of hydrocarbons via CO_(2)RR on commercial Cu films is less efficient because of the surface impurities,i.e.,*** monoxide(CO),a reaction intermediate of CO_(2)RR to hydrocarbons,binds strongly to the Fe sites and interrupts the production of hydrocarbons,resulting in an active hydrogen evolution reaction(HER).Herein,we report a method of blocking the effect of Fe impurities on the Cu surface through the preferential growth of nano-sized metal-organic frameworks(moFs)on Fe *** zirconium(Zr)-based moFs(UiO-66)forms a compensating layer on Cu film via the terephthalic acid(TPA)-Fe coordination bond,the Ui O-66 coated Cu film(UiO-66@Cu)presents significantly improved hydrocarbon Faradaic efficiency(FE)of 37.59%compared to 14.68%FE on commercial Cu film(99.9%purity)by suppressing *** to X-ray photoelectron spectroscopy(XPS)analysis,the UiO-66 ligand binds to entire metallic Fe site on the Cu surface,while metallic Cu is ***,UiO-66@Cu provides active sites of Cu for CO_(2)RR and leads to highly efficient and selective production of hydrocarbons.

关键词： Impurity on Cu film Zr-based moFs Electrocatalysts CO_(2)reduction Hydrocarbon

GIGANTEA Shapes the Photoperiodic Rhythms of Thermomorphogenic Growth in Arabidopsis

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molecular Plant 2020年第3期13卷 459-470页

作者： Young-joon Park Jae Young Kim June-Hee Lee Byoung-Doo Lee Nam-Chon Paek Chung-mo Park Department of Chemistry Seoul National UniversitySeoul 08826Korea Department of Plant Science Seoul National UniversitySeoul 08826Korea Plant Genomics and Breeding Institute Seoul National UniversitySeoul 08826Korea These authors contributed equally to this article

Plants maintain their internal temperature under environments with fluctuating temperatures by adjusting their morphology and architecture,an adaptive process termed ***,the rhythmic patterns of plant thermomorphogenesis are governed by day-length ***,it remains elusive how thermomorphogenic rhythms are regulated by ***,we show that warm temperatures enhance the accumulation of the chaperone GIGANTEA(Gl),which thermostabilizes the DELLA protein,REPRESSOR OF ga1-3(RGA),under long days,thereby attenuating PHYTOCHROME INTERACTING FACTOR 4(PIF4)-mediated *** contrast,under short days,when Gl accumulation is reduced,RGA is readily degraded through the gibberellic acid-mediated ubiquitination-proteasome pathway,promoting thermomorphogenic *** data indicate that the GI-RGA-PIF4 signaling module enables plant thermomorphogenic responses to occur in a day-length-dependent *** propose that the Gl-mediated integration of photoperiodic and temperature information shapes thermomorphogenic rhythms,which enable plants to adapt to diel fluctuations in day length and temperature during seasonal transitions.

关键词： thermomorphogenesis day length Gl RGA PIF4