Sung-Han Park's research while affiliated with Republic of Korea Ministry of Foreign Affairs and Trade and other places
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Publications (13)
Global area of genetically modified crops (GM crops or biotech crops) continued to grow and reached 189.8 million hectares in 2017. Recently, a total of 24 countries approved GM crops for planting and an additional 43 countries formally imported biotech crops for food, feed, and processing, meaning that biotech crops are now commonly accepted in th...
The physiological responses of two halophytic grass species, Halopyrum mucronatum (L.) Staph. and Cenchrus ciliaris (L.), under drought stress were evaluated. Biomass accumulation, relative water content, free proline, H2O2 content, stomatal conductance, photosynthetic performance and quantum yield (Fv/Fm ratio) were studied. Under drought conditio...
A putative cold shock protein gene, designated as ArCspA, was isolated from Arthrobacter sp. A2-5 extracted from soil at the South Pole. The ArCspA gene is 873 nucleotide bp long and includes a 207-bp short open reading frame (ORF) with 49.3-92% amino acid identity to peptide sequences of other bacterial cold shock proteins. Northern blot analysis...
To test the sound’s effect on plant and its contribution in drought tolerance, plants were subjected to various sound frequencies for an hour. After 24 h sound treatment, plants were exposed to drought for next five days. During the experiment it was observed that sound initiated physiological changes showing tolerance in plant. Sound frequency wit...
The methionine sulfoxide reductase B2 (MsrB2) gene catalyzes the reduction of free and protein-bound methionine sulfoxide to methionine and is known to provide tolerance to biotic and abiotic environmental stresses. There are yet to be any reports that MsrB2 enhances drought tolerance. Two drought-tolerant transgenic rice lines, L-8 (single copy) a...
We used microarray analysis to identify 6 730 genes potentially related to flavonoid biosynthesis by comparing their expression between high- and low-flavonoid cultivars at three stages of seed development. The genes included 167 transcription factors, 104 pathway-network genes, and I 207 potential orthologs with flavonoid-related functions. We com...
Transgenic potatoes expressing glyceraldehyde-3-phosphate dehydrogenase (GPD), isolated from the oyster mushroom, Pleurotus sajor-caju, had increased tolerance to salt stress (Jeong et al. Biochem Biophys Res Commun 278:192-196, 2000). To examine the physiological mechanisms enhancing salt tolerance in GPD-transgenic rice plants, the salt tolerance...
Phenotyping of rice (Oryza sativa L. cv. Donggin) in salt stress environment using infrared imaging was conducted. Results were correlated with the most frequently used physiological parameters such as stomatal conductance, relative water content and photosynthetic parameters. It was observed that stomatal conductance (R 2 = –0.618) and relative wa...
Key message:
Overexpression of OsGS gene modulates oxidative stress response in rice after exposure to cadmium stress. Our results describe the features of transformants with enhanced tolerance to Cd and abiotic stresses. Glutamine synthetase (GS) (EC 6.3.1.2) is an enzyme that plays an essential role in the metabolism of nitrogen by catalyzing th...
Rice is the staple food of more than 50% of the worlds population. Cultivated rice has the AA genome (diploid, 2n=24) and small genome size of only 430 megabase (haploid genome). As the sequencing of rice genome was completed by the International Rice Genome Sequencing Project (IRGSP), many researchers in the world have been working to explore the...
Seed germination is the important stage to express many genes for regulation of energy metabolism, starch degradation and cell division from seed dormancy state. For the functional analysis of seed germination mechanisms, we were analyzed the rice cDNA clones (Oryzasativa cultivar Ilpum) obtained from seed imbibition during 48 hours. Total number o...
A liguleless mutant, which showed complete loss of lamina joint region at the junction between leaf blade and leaf sheath, was iso- lated from a Ds insertional mutants derived from the source cultivar, Dongjin. This mutant could not affect other developmental pat- terns like phyllotaxis. Southern blot analysis, using GUS as a probe, revealed that t...
Citations
... These biotech crops continue to improve agricultural productivity and increase farmers' income prove that it affects this way. The effect of biotech crops as the technology has been proven and the technology has been gradually developed, the recent trend of biotech crop [27]. ...
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... To develop a variety of useful GM crops that add value to new features, a technology platform for developing commercially available biotech crops has been built (Park et al. 2018). To understand the molecular mechanisms of abiotic stress and plant adaptation, it is essential to identify drought tolerance genes in young seedling. ...
... It can be considered as an index of caper adaptation to drought stress. Numerous studies have reported increase of antioxidant enzymes in response to moisture changes (Siddiqui et al., 2016;Xiao et al., 2008). Similar to our results, an up-regulation in catalase and ascorbate peroxidase activity was also observed in drought-stressed Capparis ovata (Ozkur et al., 2009), olive (Sofo et al., 2008) and ornamental shrubs (Toscano et al., 2016). ...
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... If the sound is sharp and the vibration frequency is fast, the stimulation effect on plants may be better. For example, some researchers used the high-frequency ultrasound (about 20,000 vibrations per second) to stimulate potatoes, cabbage, wheat, vegetables, fruits, and trees, all of which had achieved significant increases in yield [21][22][23][24][25]. However, the more times plants receive ultrasound, the better [26,27]. It has been proved that a small amount of ultra-generated waves can promote cell division, that moderate ultrasound waves can inhibit cell division, and many ultrasound waves can cause cell death [23,[28][29][30][31]. ...
... TBGI130922 controls the metabolism, including the cytokinin metabolism 75 , to support rice coleoptile growth 84 . One product of this gene is flavonoid-biosynthesis networks 85,86 . These flavonoid compounds have many roles in plants, including the reproduction process 87 and specialized metabolite pathways 88 www.nature.com/scientificreports/ ...
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... CSPs are distributed in prokaryotic and eukaryotic kingdom to cope up with cold shock due and abrupt downshift in temperature. In prokaryotes, CSPs are found in a diverse group of bacteria like Bacillus sp., Streptococcus sp., Thermotoga sp., Listeria sp., Arthrobacter sp., Escherichia coli and Pseudomonas sp. ( Goldstein et al. 1990; Graumann et al. 1997;Fang et al. 2012;Lee et al. 2013;Hoffmann et al. 2013;Lee et al. 2014;Bisht et al. 2014). Among prokaryotes, CSPs were first identified in E. coli and further discoveries showed that it codes for eight more similar proteins (CspB-CspI). ...
... Kara and Brinis (2012) The present fi nding suggests that the eff ect of fungi on the RWC is greater, which is in close agreement with fi ndings of Hashem et al. (2014) and Zhang et al. (2016). Siddiqui et al. (2014) showed that salinity signifi cantly decreased RWC of rice crops; however, a signifi cant increase was revealed due to Trichoderma spp. inoculation. ...
... However, it is important to select suitable candidate genes for conferring tolerance to drought. Tolerance to drought stress from such stressresponsive genes involves the expression of many other genes since drought is a complex phenomenon and it cross-talk with other abiotic stresses (Shinozaki and Yamaguchi-Shinozaki, 2000;Munns, 2002;Siddiqui et al., 2014b). Bartels and Sunkar, (2005) reported that many stress-inducible genes have been identified to function in abiotic stress tolerance using transgenic plants. ...
... Ac/Ds elements act as low-copy mutagens during transposition. Newly transposed elements are often germinally propagated by manual crossing and ; Je et al. (2010); Lee, G.S. et al. (2010); Lee, S. et al. (2010a,b); Lee, Y.S. et al. (2010) CSIRO Nipponbare 5,000 611 nd b Upadhyaya et al. (2006) EU OSTID Nipponbare 5,000 1,380 nd b van Enckevort et al. ...
... The current findings have shown that osmolyte accumulation was substantially higher in inoculated plants than in non-inoculated plants. This increased osmolyte activity resulted in increased soluble sugar and proline levels in GmSPL9d-expressing transgenic soybeans inoculated with AMF to promote cell homeostasis and reduce the risk of cell shrinkage and turgidity (Cho et al., 2014). The current findings are consistent with those of AMF Javan Gholiloo et al., 2019) and GmSPL9d expression-based reports (Arshad et al., 2017;Matthews et al., 2019;Muhammad et al., 2017). ...
