Spatially and genetically distinct control of seed germination by phytochromes A and B

Result code in IS VaVaI

<a href="https://www.isvavai.cz/riv?ss=detail&h=RIV%2F61389030%3A_____%2F12%3A00382417" target="_blank" >RIV/61389030:_____/12:00382417 - isvavai.cz</a>

Alternative codes found

RIV/61989592:15310/12:33142812

Result on the web

<a href="http://dx.doi.org/10.1101/gad.194266.112" target="_blank" >http://dx.doi.org/10.1101/gad.194266.112</a>

DOI - Digital Object Identifier

<a href="http://dx.doi.org/10.1101/gad.194266.112" target="_blank" >10.1101/gad.194266.112</a>

Result language

angličtina

Original language name

Spatially and genetically distinct control of seed germination by phytochromes A and B

Original language description

Phytochromes phyB and phyA mediate a remarkable developmental switch whereby, early upon seed imbibition, canopy light prevents phyB-dependent germination, whereas, later on, it stimulates phyA-dependent germination. Using a seed coat bedding assay wherethe growth of dissected embryos is monitored under the influence of dissected endosperm, allowing combinatorial use of mutant embryos and endosperm, we show that canopy light specifically inactivates phyB activity in the endosperm to override phyA-dependent signaling in the embryo. This interference involves abscisic acid (ABA) release from the endosperm and distinct spatial activities of phytochrome signaling components. Under the canopy, endospermic ABA opposes phyA signaling through the transcription factor (TF) ABI5, which shares with the TF PIF1 several target genes that negatively regulate germination in the embryo. ABI5 enhances the expression of phytochrome signaling genes PIF1, SOMNUS, GAI, and RGA, but also of ABA and gibbere

Czech name

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Czech description

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Type

J_x - Unclassified - Peer-reviewed scientific article (Jimp, Jsc and Jost)

CEP classification

EB - Genetics and molecular biology

OECD FORD branch

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Project

Result was created during the realization of more than one project. More information in the Projects tab.

Continuities

Z - Vyzkumny zamer (s odkazem do CEZ)

Publication year

2012

Confidentiality

S - Úplné a pravdivé údaje o projektu nepodléhají ochraně podle zvláštních právních předpisů

Name of the periodical

Genes and Development

ISSN

0890-9369

e-ISSN

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Volume of the periodical

26

Issue of the periodical within the volume

17

Country of publishing house

US - UNITED STATES

Number of pages

13

Pages from-to

1984-1996

UT code for WoS article

000308391800009

EID of the result in the Scopus database

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