http://chineseinput.net/에서 pinyin(병음)방식으로 중국어를 변환할 수 있습니다.
변환된 중국어를 복사하여 사용하시면 됩니다.
Seong-Hee Park,Jinkyung Hur,Jongbum Park,Sangseob Lee,Taek-Kyun Lee,Man Chang,Keith R. Davis,Jeongha Kim,이석찬 한국분자세포생물학회 2002 Molecules and cells Vol.13 No.2
The infection of hosts by the geminivirus depends on the interactions between host and viral factors for viral DNA replication, viral gene expression, and the movement of virus throughout the hosts. This work reports that a hypervirulent strain of Beet curly top virus (BCTV) is different in its ability to infect several ecotypes of Arabidopsis thaliana. Symptoms appeared on Arabidopsis ecotypes around 7 to 10 d after inoculation with BCTV-CFH. Symptoms were more severe in ecotype SKKU including severe leaf curling and development of severely deformed and stunted bolting compared to Col-O as a lab standard ecotype. One ecotype Cen-O was asymptomatic to BCTV-CFH infection. Studies of viral DNA replication and virus movement in three excised organs of asymptomatic Cen-O demonstrated that BCTV-CFH could replicate viral DNA and move systemically in this ecotype, suggesting that tolerance was due to the blocks of interactions between host and viral factors on symptom development. This asymptomatic phenotype is similar to the mutation of leftward ORFs, especially ORF R2. Genetic analysis of this ecotype Cen-O indicated that tolerance is due to a single recessive locus.
Davies, Daniel ,W.,Butler, Keith T.,Skelton, Jonathan M.,Xie, Congwei,Oganov, Artem R.,Walsh, Aron Royal Society of Chemistry 2018 Chemical Science Vol.9 No.4
<▼1><P>The standard paradigm in computational materials science is INPUT: <SMALL>STRUCTURE;</SMALL> OUTPUT: <SMALL>PROPERTIES</SMALL>, which has yielded many successes but is ill-suited for exploring large areas of chemical and configurational hyperspace.</P></▼1><▼2><P>The standard paradigm in computational materials science is INPUT: S<SMALL>TRUCTURE</SMALL>; OUTPUT: P<SMALL>ROPERTIES</SMALL>, which has yielded many successes but is ill-suited for exploring large areas of chemical and configurational hyperspace. We report a high-throughput screening procedure that uses compositional descriptors to search for new photoactive semiconducting compounds. We show how feeding high-ranking element combinations to structure prediction algorithms can constitute a pragmatic computer-aided materials design approach. Techniques based on structural analogy (data mining of known lattice types) and global searches (direct optimisation using evolutionary algorithms) are combined for translating between chemical composition and crystal structure. The properties of four novel chalcohalides (Sn<SUB>5</SUB>S<SUB>4</SUB>Cl<SUB>2</SUB>, Sn<SUB>4</SUB>SF<SUB>6</SUB>, Cd<SUB>5</SUB>S<SUB>4</SUB>Cl<SUB>2</SUB> and Cd<SUB>4</SUB>SF<SUB>6</SUB>) are predicted, of which two are calculated to have bandgaps in the visible range of the electromagnetic spectrum.</P></▼2>
허진영,최은석,Kenneth J. Buckley,이석찬,Keith R. Davis 한국분자세포생물학회 2008 Molecules and cells Vol.26 No.2
Expression of the seven open reading frames (ORFs) of single-stranded DNA Curtoviruses such as Beet curly top virus (BCTV) and Beet severe curly top virus (BSCTV) is driven by a bi-directional promoter. To investigate this bi-directional promoter activity with respect to viral late gene expression, transgenic Arabidopsis plants expressing a GUS reporter gene under the control of either the BCTV or BSCTV bi-directional promoter were constructed. Transgenic plants harboring constructs showed higher expression levels when the promoter of the less virulent BCTV was used than when the promoter of the more virulent BSCTV was used. In transgenic seedlings, the reporter gene constructs were expressed primarily in actively dividing tissues such as root tips and apical meristems. As the transgenic plants matured, reporter gene expression diminished but viral infection of mature transgenic plants restored reporter gene expression, particularly in transgenic plants containing BCTV virion-sense gene promoter constructs. A 30 base pair conserved late element (CLE) motif was identified that was present three times in tandem in the BCTV promoter and once in that of BSCTV. Progressive deletion of these repeats from the BCTV promoter resulted in decreased reporter gene expression, but BSCTV promoters in which one or two extra copies of this motif were inserted did not exhibit increased late gene promoter activity. These results demonstrate that Curtovirus late gene expression by virion-sense promoters depends on the developmental stage of the host plant as well as on the number of CLE motifs present in the promoter.
Hur, Jingyung,Choi, Eunseok,Buckley, Kenneth J.,Lee, Sukchan,Davis, Keith R. Korean Society for Molecular Biology 2008 Molecules and cells Vol.26 No.2
Expression of the seven open reading frames (ORFs) of single-stranded DNA Curtoviruses such as Beet curly top virus (BCTV) and Beet severe curly top virus (BSCTV) is driven by a bi-directional promoter. To investigate this bi-directional promoter activity with respect to viral late gene expression, transgenic Arabidopsis plants expressing a GUS reporter gene under the control of either the BCTV or BSCTV bi-directional promoter were constructed. Transgenic plants harboring constructs showed higher expression levels when the promoter of the less virulent BCTV was used than when the promoter of the more virulent BSCTV was used. In transgenic seedlings, the reporter gene constructs were expressed primarily in actively dividing tissues such as root tips and apical meristems. As the transgenic plants matured, reporter gene expression diminished but viral infection of mature transgenic plants restored reporter gene expression, particularly in transgenic plants containing BCTV virion-sense gene promoter constructs. A 30 base pair conserved late element (CLE) motif was identified that was present three times in tandem in the BCTV promoter and once in that of BSCTV. Progressive deletion of these repeats from the BCTV promoter resulted in decreased reporter gene expression, but BSCTV promoters in which one or two extra copies of this motif were inserted did not exhibit increased late gene promoter activity. These results demonstrate that Curtovirus late gene expression by virion-sense promoters depends on the developmental stage of the host plant as well as on the number of CLE motifs present in the promoter.