Li, Chunyang, Gu, Mei, Shi, Nongnong, Zhang, Hang, Yang, Xin, Osman, Toba, Liu, Yule, Wang, Huizhong, Vatish, Manu, Jackson, Stephen D. and Hong, Yiguo (2011) Mobile FT mRNA contributes to the systemic florigen signalling in floral induction. Scientific Reports, Vol.1 (No.73). pp. 1-7. doi:10.1038/srep00073 ISSN 2045-2322.

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Abstract

In inducing photoperiodic conditions, plants produce a signal dubbed "florigen" in leaves. Florigen moves through the phloem to the shoot apical meristem (SAM) where it induces flowering. In Arabidopsis, the FLOWERING LOCUS T (FT) protein acts as a component of this phloem-mobile signal. However whether the transportable FT mRNA also contributes to systemic florigen signaling remains to be elucidated. Using non-conventional approaches that exploit virus-induced RNA silencing and meristem exclusion of virus infection, we demonstrated that the Arabidopsis FT mRNA, independent of the FT protein, can move into the SAM. Viral ectopic expression of a non-translatable FT mRNA promoted earlier flowering in the short-day (SD) Nicotiana tabacum Maryland Mammoth tobacco in SD. These data suggest a possible role for FT mRNA in systemic floral signalling, and also demonstrate that cis-transportation of cellular mRNA into SAM and meristem exclusion of pathogenic RNAs are two mechanistically distinct processes.

Item Type:	Journal Article
Subjects:	Q Science > QK Botany
Divisions:	Faculty of Science, Engineering and Medicine > Science > Life Sciences (2010- ) Faculty of Science, Engineering and Medicine > Science > Life Sciences (2010- ) > Warwick HRI (2004-2010) Faculty of Science, Engineering and Medicine > Medicine > Warwick Medical School
Library of Congress Subject Headings (LCSH):	Arabidopsis -- Genetics, Plants, Flowering of -- Genetics, Messenger RNA
Journal or Publication Title:	Scientific Reports
Publisher:	Nature Publishing Group
ISSN:	2045-2322
Official Date:	24 August 2011
Dates:	Date Event 24 August 2011 Published
Volume:	Vol.1
Number:	No.73
Page Range:	pp. 1-7
DOI:	10.1038/srep00073
Status:	Peer Reviewed
Publication Status:	Published
Access rights to Published version:	Open Access (Creative Commons)
Date of first compliant deposit:	17 December 2015
Date of first compliant Open Access:	17 December 2015
Funder:	University of Warwick, Guo jia zi ran ke xue ji jin wei yuan hui (China) [National Natural Science Foundation of China] (NSFC), Hangzhou da xue, Chengdu Institute of Biological Products
Grant number:	30770185 (NSFC), 30870180 (NSFC), 31070298 (NSFC), 20090232T05 (Hangzhou)

Data sourced from Thomson Reuters' Web of Knowledge

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