Maternal auxin supply contributes to early embryo patterning in Arabidopsis
The result's identifiers
Result code in IS VaVaI
<a href="https://www.isvavai.cz/riv?ss=detail&h=RIV%2F00216224%3A14740%2F18%3A00101054" target="_blank" >RIV/00216224:14740/18:00101054 - isvavai.cz</a>
Alternative codes found
RIV/61389030:_____/18:00494179 RIV/61989592:15310/18:73592334
Result on the web
<a href="http://dx.doi.org/10.1038/s41477-018-0204-z" target="_blank" >http://dx.doi.org/10.1038/s41477-018-0204-z</a>
DOI - Digital Object Identifier
<a href="http://dx.doi.org/10.1038/s41477-018-0204-z" target="_blank" >10.1038/s41477-018-0204-z</a>
Alternative languages
Result language
angličtina
Original language name
Maternal auxin supply contributes to early embryo patterning in Arabidopsis
Original language description
The angiosperm seed is composed of three genetically distinct tissues: the diploid embryo that originates from the fertilized egg cell, the triploid endosperm that is produced from the fertilized central cell, and the maternal sporophytic integuments that develop into the seed coat(1). At the onset of embryo development in Arabidopsis thaliana, the zygote divides asymmetrically, producing a small apical embryonic cell and a larger basal cell that connects the embryo to the maternal tissue(2). The coordinated and synchronous development of the embryo and the surrounding integuments, and the alignment of their growth axes, suggest communication between maternal tissues and the embryo. In contrast to animals, however, where a network of maternal factors that direct embryo patterning have been identified(3,4), only a few maternal mutations have been described to affect embryo development in plants(5-7). Early embryo patterning in Arabidopsis requires accumulation of the phytohormone auxin in the apical cell by directed transport from the suspensors(8-10). However, the origin of this auxin has remained obscure. Here we investigate the source of auxin for early embryogenesis and provide evidence that the mother plant coordinates seed development by supplying auxin to the early embryo from the integuments of the ovule. We show that auxin response increases in ovules after fertilization, due to upregulated auxin biosynthesis in the integuments, and this maternally produced auxin is required for correct embryo development.
Czech name
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Czech description
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Classification
Type
J<sub>imp</sub> - Article in a specialist periodical, which is included in the Web of Science database
CEP classification
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OECD FORD branch
10604 - Reproductive biology (medical aspects to be 3)
Result continuities
Project
Result was created during the realization of more than one project. More information in the Projects tab.
Continuities
P - Projekt vyzkumu a vyvoje financovany z verejnych zdroju (s odkazem do CEP)
Others
Publication year
2018
Confidentiality
S - Úplné a pravdivé údaje o projektu nepodléhají ochraně podle zvláštních právních předpisů
Data specific for result type
Name of the periodical
NATURE PLANTS
ISSN
2055-026X
e-ISSN
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Volume of the periodical
4
Issue of the periodical within the volume
8
Country of publishing house
GB - UNITED KINGDOM
Number of pages
6
Pages from-to
548-553
UT code for WoS article
000443861300011
EID of the result in the Scopus database
2-s2.0-85049933562