scholarly journals Anti-sense RNA efficiently inhibits formation of the 10 kd polypeptide of photosystem II in transgenic potato plants: analysis of the role of the 10 kd protein.

1990 ◽  
Vol 9 (9) ◽  
pp. 3013-3021 ◽  
Author(s):  
J. Stockhaus ◽  
M. Höfer ◽  
G. Renger ◽  
P. Westhoff ◽  
T. Wydrzynski ◽  
...  
2000 ◽  
Vol 23 (6) ◽  
pp. 747-758 ◽  
Author(s):  
Stefanie Maimann ◽  
Cornelia Wagner ◽  
Oliver Kreft ◽  
Michaela Zeh ◽  
Lothar Willmitzer ◽  
...  

1997 ◽  
Vol 10 (2) ◽  
pp. 153-159 ◽  
Author(s):  
Frank van der Wilk ◽  
Petra Houterman ◽  
Jos Molthoff ◽  
Fabienne Hans ◽  
Ben Dekker ◽  
...  

The role of the open reading frame 0 (ORF0) of luteoviruses in the viral infection cycle has not been resolved, although the translation product (p28) of this ORF has been suggested to play a role in host recognition. To investigate the function of the potato leafroll luteovirus (PLRV) p28 protein, transgenic potato plants were produced containing the ORF0. In the lines in which the ORF0 transcripts could be detected by Northern (RNA) analysis, the plants displayed an altered phenotype resembling virus-infected plants. A positive correlation was observed between levels of accumulation of the transgenic transcripts and severity of the phenotypic aberrations observed. In contrast, potato plants transformed with a modified, untranslatable ORF0 sequence were phenotypically indistinguishable from wild-type control plants. These results suggest that the p28 protein is involved in viral symptom expression. Southern blot analysis showed that the transgenic plants that accumulated low levels of ORF0 transcripts detectable only by reverse transcription-polymerase chain reaction, contained methylated ORF0 DNA sequences, indicating down-regulation of the transgene provoked by the putatively unfavorable effects p28 causes in the plant cell.


Planta ◽  
1999 ◽  
Vol 210 (1) ◽  
pp. 41-49 ◽  
Author(s):  
Sophia Biemelt ◽  
Mohammad Reza Hajirezaei ◽  
Michael Melzer ◽  
Gerd Albrecht ◽  
Uwe Sonnewald

Plant Science ◽  
2002 ◽  
Vol 162 (3) ◽  
pp. 373-380 ◽  
Author(s):  
Sébastien De Turck ◽  
Philippe Giordanengo ◽  
Anas Cherqui ◽  
Corinne Ducrocq-Assaf ◽  
Brigitte S Sangwan-Norreel

2002 ◽  
Vol 38 (SI 1 - 6th Conf EFPP 2002) ◽  
pp. 183-185
Author(s):  
A. Germundsson ◽  
M. Sandgren ◽  
H. Barker ◽  
E.I. Savenkov ◽  
J.P.T. Valkonen

Resistance to Potato mop-top virus (PMTV) was studied in Nicotiana benthamiana and potato (Solanum tuberosum cv.<br />Saturna) transformed with the coat protein (CP) gene of PMTV. In N. benthamiana plants mechanically inoculated with<br />PMTV, RNA2 was detected in leaves and roots in several plants in the absence of RNA3. When N. benthamiana was<br />grown in infested soil, viral RNA was detected in roots, but no systemic movement of PMTV to above-ground parts was<br />observed. The incidence of PMTV infections was reduced in the CP-transgenic potato plants grown in an infested field<br />in Sweden. However, in infected tubers, all three virus RNAs were detected.


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