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Division of Biosystems ResearchEnvironmental BiotechnologyResearch CenterRESEARCHERSHee-Mock Oh heemock@kribb.re.krEcophysiological study of microalgae and biological CO2fixation using microalgaeSang-Soo Kwak sskwak@kribb.re.krTransgenic plants with enhanced tolerance to multiplestresses on marginal landsHaeng-Soon Lee hslee@kribb.re.krMolecular breeding of crops for bioenergy and functionalfeed on marginal landsStephen Beungtae Ryu sbryu@kribb.re.krEnhancement of multi-resistances of plants usingnatural lipids and plant green biotechnology on naturalrubberWon-Gon Kim wgkim@kribb.re.krCharacterization of bioactive substances frommicroorganisms and environmental sourcesHee-Sik Kim hkim@kribb.re.krMolecular analysis of microbial diversity and functions incontaminated environmentsChi-Yong Ahn cyahn@kribb.re.krEcogenomics and ecoinformatics of microalgae andcyanobacterial bloomJae Cheol Jeong jcjeong@kribb.re.krTransgenic plants with enhanced tolerance to droughtstress for combating desertificationIl-Gin Mok mokig@kribb.re.krMolecular breeding of sweetpotato and potato plants forsustainable agricultureRESEARCH AREASPlant antioxidation researchDeveloping industrial transgenic plants with enhancedtolerance to multiple environmental stresses forsustainable agriculture on marginal landsMicroalgae researchUsing diverse microalgae in carbon dioxidesequestration and developing environmentally-friendlyproduction technologies for useful materialsMicrobial community researchDeveloping functional microbial communities forbioremediation of contaminated soil and monitoringmicrobial diversity and functionsBiomaterials researchScreening, characterization, and mode-of-action studiesof bioactive substances from microorganisms, plants,and other environmental sourcesDirector Hee-Mock OhT + 82-42-860-4321F + 82-42-879-8103E heemock@kribb.re.krACHIEVEMENTSDevelopment of industrial crops with enhanced tolerance to multipleenvironmental stressesVarious transgenic crops (e.g. sweetpotatoes, potatoes, poplars) through the genemanipulation of their antioxidative mechanisms were developed for sustainableagriculture on marginal lands. Root-specific promoters are under study for the productionof bioenergy and functional feed materials in transgenic sweetpotato plants.Greenhouse gas reduction and beneficial material productionOutdoor mass bioreactors and microalgae harvesting apparatus were developed whichexhibited improved efficiency in carbon dioxide fixation. The resultant microalgae biomasscan be used in biofuels, health foods, cosmetics, and medicines.Development of functional microbial communities for bioremediationDozens of functional microbial communities (FMCs), capable of degrading petroleum oil,were obtained from oil-contaminated soil. We developed an effective technologies for FMCpreservation and field applications.New bioactive metabolites from microorganismsMicroorganisms, including microalgae and cyanobacteria, are rich in secondarymetabolites with diverse chemical structures and various biological functions. Newinhibitors of bacterial fatty acid synthase (FabI, K, G) and peptide deformylase were foundin microorganisms for the first time in this study and have potential for newantibacterials.Environmentally safe natural bioactive substances from plantsBioactive lipid compounds that enhance multi-resistances in plants to abiotic and bioticstresses were found and are being applied to agricultural fields.SELECTED PUBLICATIONSHee-Mock Oh (Corresponding) Bioresour Technol. 101(Suppl 1):S71-4.Selection of microalgae for lipid production under high levels carbon dioxideHee-Sik Kim (Corresponding) Biotechnol Lett. 32(12):1829-35.Complete reductive dechlorination of tetrachloroethene to ethene by anaerobic microbialenrichment culture developed from sedimentSang-Soo Kwak (Corresponding) Chemosphere. 81(1):79-85.Differential responses of sweetpotato peroxidases to heavy metalsWon-Gon Kim (Corresponding) Food Chem. 123(2):501-6.Isolation and identification of pentagalloylglucose with the broad-spectrum of antibacterialactivity from Rhus trichocarpa MiquelHaeng-Soon Lee (Corresponding) Physiol Plant. 140(2):153-62.Enhanced tolerance to methyl viologen-induced oxidative stress and high temperature intransgenic potato plants overexpressing the CuZnSOD, APX and NDPK2 genesWe aim to develop industrial platform technologies using high-tech ecogenomics and biological resources in response to theUnited Nations Framework Convention on Climate Change. We also investigate water pollution and soil pollution forsustainable development. To achieve these goals, we focus on the development of integrated fusion technologies combinedwith plant science, microbial science (including microalgae), and environmentally-friendly materials science.44 KRIBB Annual Report 2010KRIBB Annual Report 2010 45