Mobile FT mRNA contributes to the systemic florigen signalling in floral induction.
Mobile FT mRNA contributes to the systemic florigen signalling in floral induction.
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移动 FT mRNA 有助于花诱导中的系统成花素信号传导
DOI:
10.1038/srep00073
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发表时间:
2011
影响因子:
4.6
通讯作者:
Hong, Yiguo
中科院分区:
文献类型:
--
作者:
Li, Chunyang;Gu, Mei;Shi, Nongnong;Zhang, Hang;Yang, Xin;Osman, Toba;Liu, Yule;Wang, Huizhong;Vatish, Manu;Jackson, Stephen;Hong, Yiguo
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 signalling 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.
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影响因子:
11.4
作者:
Ferrandon, D;Koch, I;NussleinVolhard, C
通讯作者:
NussleinVolhard, C
影响因子:
11.6
作者:
Lin, Ming-Kuem;Belanger, Helene;Lucas, William J.
通讯作者:
Lucas, William J.
影响因子:
7.2
作者:
Deeken, Rosalia;Ache, Peter;Hedrich, Rainer
通讯作者:
Hedrich, Rainer
影响因子:
9.2
作者:
Jaeger, Katja E.;Wigge, Philip A.
通讯作者:
Wigge, Philip A.
影响因子:
56.9
作者:
LUCAS, WJ;BOUCHEPILLON, S;HAKE, S
通讯作者:
HAKE, S