doi: 10.1094/MPMI.2001.14.11.1332.
Potato spindle tuber viroid as inducer of RNA silencing in infected tomato
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- PMID: 11763132
- DOI: 10.1094/MPMI.2001.14.11.1332
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Potato spindle tuber viroid as inducer of RNA silencing in infected tomato
Mol Plant Microbe Interact.
2001 Nov.
Free article
Abstract
Potato spindle tuber viroid (PSTVd), an RNA plant pathogen encoding no known proteins, induces systemic symptoms on tomato plants. We report detection of small RNAs of approximately 25 nucleotides with sequence specificity to PSTVd in infected plants: an indication of the presence of RNA silencing. RNA silencing, however, did not appear to be responsible for the differing symptoms induced by a mild and a severe strain of PSTVd. The unique structural and biological features of viroids make them attractive experimental tools to investigate mechanisms of RNA silencing and pathogen counterdefense.
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