| DCL3 and DCL4 are likely involved in the light intensity - RNA silencing cross talk in Nicotiana benthamiana. | |
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MedLine Citation:
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PMID: 21791977 Owner: NLM Status: Publisher |
Abstract/OtherAbstract:
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Plants have substantially invested in RNA silencing as the central defense mechanism to combat nucleotide 'invaders' such as viruses, trasposable elements and transgenes. The quantity and quality of light perceived by a plant is a constant environmental stimulus refining cell homeostasis and RNA silencing mechanism seems not to be an exception In our recent paper in BMC Plant Biology we documented that light intensity, in physiological ranges, positively affects silencing initiation and spread. ( 1) Here, we show that virus induced gene silecing under high light conditions results in more frequent systemic silencing events of a transgene and is acompanied by elevated DCL3 and DCL4 mRNA levels. In addition, our results show that DCL3 holds a vital role in systemic silencing spread and the positive effect of light intensity on RNA silencing requires DCL4 function. |
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Authors:
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Christos Kotakis; Nicholas Vrettos; Maria G Daskalaki; Kiriakos Kotzabasis; Kriton Kalantidis |
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Publication Detail:
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Type: JOURNAL ARTICLE Date: 2011-8-01 |
Journal Detail:
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Title: Plant signaling & behavior Volume: 6 ISSN: 1559-2324 ISO Abbreviation: - Publication Date: 2011 Aug |
Date Detail:
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Created Date: 2011-7-27 Completed Date: - Revised Date: - |
Medline Journal Info:
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Nlm Unique ID: 101291431 Medline TA: Plant Signal Behav Country: - |
Other Details:
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Languages: ENG Pagination: - Citation Subset: - |
Affiliation:
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Department of Biology, University of Crete; Crete, Greece. |
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From MEDLINE®/PubMed®, a database of the U.S. National Library of Medicine
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