http://chineseinput.net/에서 pinyin(병음)방식으로 중국어를 변환할 수 있습니다.
변환된 중국어를 복사하여 사용하시면 됩니다.
Myoung-Ryoul Park,Sang-Soo Ryu,Nam-Hee Yoo,Chang-Yeon Yu,Song-Joong Yun 한국약용작물학회 2005 한국약용작물학회지 Vol.13 No.5
Superoxide dismutases (SOD) are metalloenzymes that convert O2- to H2O2. Rehmannia glutinosa is highly tolerant to paraquat-induced oxidative stress. The primary objective of this study was to characterize regulation of SOD gene expression in R. glutinosa in response to oxidative stresses and hormones. A full-length putative SOD clone (RgCu-ZnSOD1) was isolated from the leaf cDNA library of R. glutinosa using an expressed sequence tag clone as a probe. RgCu-ZnSOD1 cDNA is 777 bp in length and contains an open reading frame for a polypeptide consisted of 152 amino acid residues. The deduced amino acid sequence of the clone shows highest sequence similarity to the cytosolic Cu-ZnSODs. The two to three major bands with several minor ones on the Southern blots indicate that RgCu-ZnSOD1 is a member of a small multi-gene family. RgCuZnSOD1 mRNA was constitutively expressed in the leaf, flower and root. The expression of RgCu-ZnSOD1 mRNA was increased about 20% by wounding and paraquat, but decreased over 50% by ethylene and GA3. This result indicates that the RgCu-ZnSOD1 expression is regulated differentially by different stresses and phytohormones at the transcription level. The RgCu-ZnSOD1 sequence and information on its regulation will be useful in investigating the role of SOD in the paraquat tolerance of R. glutinosa.
( Myoung Ryoul Park ),( Min-jung Seo ),( Yu-young Lee ),( Chang-hwan Park ) 한국육종학회 2016 Plant Breeding and Biotechnology Vol.4 No.4
We conducted this study to select useful germplasms for investigating the agricultural performances and content variations of proximate composition, fatty acid, and isoflavone of the soybean germplasms grown at two different latitudes, Suwon (37˚16`N) and Yeoncheon (38˚12`N), Republic of Korea. The days to flowering of the soybeans grown at Suwon was early by 1 day compared with that at Yeoncheon whereas the days to maturing of the soybeans were not different by latitudes. The Yeoncheon-cultivated soybeans were greater in growth and yield than the Suwon. The crude oil in range of 17.0% to 20.0% had a positive correlation with the yield. There was a strong negative correlation between oleic acid and saturated fatty (palmitic and stearic) acid contents in the seeds producted at Suwon but the Yeoncheon were not significant. The linoleic acid in seeds of the germplasms was contained by 7.3-fold more than the linolenic acid. The malonylgenistin content was the highest among the detected isoflavones and Deapung had the highest total isoflavone content. The content of total isoflavones in the Yeoncheon-producted seeds was high more than that in the Suwon whereas those of Hei nong 44(hou), Tachikogane, and B152 grown at Suwon were significantly lower rather than those at Yeoncheon. However, the difference of latitude seemed to play an important role in the content variations of growth, yield, and fatty acids and isoflavones in the germplasms. Eventually, Tie dou 44 and WIR3722, which were stably outstanding in all the investigated aspects regardless of the growing locations, were selected as useful germplasms.
Analysis of Agronomic Traits of Soybeans Adaptable to Northern Area of the Korean Peninsula
( Myoung Ryoul Park ),( Min-jung Seo ),( Hong-tae Yun ),( Yong Hawn Ryu ),( Huhn Pal Moon ),( Dong Soon Kim ) 한국육종학회 2019 Plant Breeding and Biotechnology Vol.7 No.4
We have conducted this study to select soybeans adaptable to North Korea using growing degree days (GDD) as a heuristic tool. For analyzing climatic conditions, we assumed that climatic conditions of Longjing, Donggang, and Yeoncheon are similar to the Eastern Coast Northern Zone, Suyangsan Northern Zone, and Suyangsan Southern Zone in North Korea, respectively. The predicted days to flowering of 100 soybeans grown at Longjing, Donggang, and Yeoncheon were in ranges from 7/17 to 7/30, from 7/16 to 7/28, and from 7/30 to 8/10, respectively, while the last date of flowering for completely harvesting were predicted by July 12<sup>th</sup>, August 2<sup>nd</sup>, and August 11<sup>th</sup>, respectively. The predicted days to flowering using GDD were almost similar to the days investigated in the three fields. These results showed that GDD is highly effective in predicting development rates of soybean, such as days to flowering and days to maturity. Although most of the tested soybeans were difficult to adapt to Longjing, we selected 12, 15, and 16 soybean varieties/lines based on the predicted days to flowering and last date of flowering for completely harvesting and yield of the soybeans grown at Longjing, Donggang and Yeoncheon, respectively, for further analyzing effects of the regional characteristics on agricultural traits of the selected soybeans. The 100-seed weight and yield of the selected soybeans grown at Longjing was significantly low compared with those at the other locations. The results implied that the soybeans would be exposed to freezing temperature before R6 stage and the reduced size would contribute to soybean yield loss. Taken together, we concluded that Suwon212, Iksan13 and ‘Shinpaldalkong2’ which were stable in degree of lodging, 100-seed weight, and yield at Donggang and Yeoncheon could be adaptable to Suyangsan Northern Zone, and Suyangsan Southern Zone in North Korea.
Myoung Ryoul Park,Chunmei Cai,서민정,윤홍태,박수권,최만수,박창환,문중경 한국작물학회 2019 Korean journal of crop science Vol.64 No.3
Soybean [Glycine max (L.) Merr.] is a species of legume native to East Asia. The interactions between climatic conditions and genetic characteristics are known to affect the agricultural performance of soybean. Therefore, the present investigation was conducted to identify the main elements affecting the agricultural performances of 11 soybean varieties/lines from China [Harbin (45°12′N), Yanji (42°53′N), Dalian (39°30′N), Qingdao (36°26′N)] and the Republic of Korea [Suwon (37°16′N), and Jeonju (35°49′N)]. The days to flowering (DTF) of soybeans with the e1-nf and e1-as alleles and the E1e2e3e4 genotype, except in ‘Keumgangkong’, ‘Tawonkong’, and ‘Duyoukong’, were relatively short compared to those of soybeans with other alleles. Although DTF of the soybeans was highly correlated with all climatic conditions [negative: precipitation, average temperature (AVT), accumulated temperature; positive: day-length (DL)], days to maturity and 100-seed weight of the soybeans showed no significant correlation with any climatic conditions. The soybeans with a dominant Dt1 allele, except ‘Tawonkong’, had the longest stem length (STL). Moreover, STL of the soybeans grown in the test fields showed a positive correlation with only DL; however, the results of our chamber test that was conducted to complement the field tests showed that STL of soybean was positively affected by AVT and DL. Although soybean yield (YLD) showed positive correlations with latitude and DL (except L62-667, OT89-5, and OT89-6), the response of YLD to the climatic conditions was cultivar-specific. Our results show that DTF and STL of soybeans grown in six different latitudes are highly affected by DL, and AVT and genetic characteristic also affect DTF and STL.
PARK, MYOUNG-RYOUL,YUN, KIL-YOUNG,MOHANTY, BIJAYALAXMI,HERATH, VENURA,XU, FUYU,WIJAYA, EDWARD,BAJIC, VLADIMIR B.,YUN, SONG-JOONG,DE LOS REYES, BENILDO G. Blackwell Publishing Ltd 2010 Plant, cell and environment Vol.33 No.12
<P>Abstract</P><P>The R2R3-type <I>OsMyb4</I> transcription factor of rice has been shown to play a role in the regulation of osmotic adjustment in heterologous overexpression studies. However, the exact composition and organization of its underlying transcriptional network has not been established to be a robust tool for stress tolerance enhancement by regulon engineering. <I>OsMyb4</I> network was dissected based on commonalities between the global chilling stress transcriptome and the transcriptome configured by <I>OsMyb4</I> overexpression. <I>OsMyb4</I> controls a hierarchical network comprised of several regulatory sub-clusters associated with cellular defense and rescue, metabolism and development. It regulates target genes either directly or indirectly through intermediary MYB, ERF, bZIP, NAC, ARF and CCAAT-HAP transcription factors. Regulatory sub-clusters have different combinations of MYB-like, GCC-box-like, ERD1-box-like, ABRE-like, G-box-like, as1/ocs/TGA-like, AuxRE-like, gibberellic acid response element (GARE)-like and JAre-like <I>cis</I>-elements. Cold-dependent network activity enhanced cellular antioxidant capacity through radical scavenging mechanisms and increased activities of phenylpropanoid and isoprenoid metabolic processes involving various abscisic acid (ABA), jasmonic acid (JA), salicylic acid (SA), ethylene and reactive oxygen species (ROS) responsive genes. <I>OsMyb4</I> network is independent of drought response element binding protein/C-repeat binding factor (<I>DREB/CBF</I>) and its sub-regulons operate with possible co-regulators including nuclear factor-Y. Because of its upstream position in the network hierarchy, <I>OsMyb4</I> functions quantitatively and pleiotrophically. Supra-optimal expression causes misexpression of alternative targets with costly trade-offs to panicle development.</P>