Universität zu Köln

Fujihara, Rina, Uchida, Naoyuki, Tameshige, Toshiaki, Kawamoto, Nozomi ORCID: 0000-0001-6565-7132, Hotokezaka, Yugo, Higaki, Takumi ORCID: 0000-0002-1379-3930, Simon, Rudiger, Torii, Keiko U., Tasaka, Masao and Aida, Mitsuhiro ORCID: 0000-0001-9000-7502 (2021). The boundary-expressed EPIDERMAL PATTERNING FACTOR-LIKE2 gene encoding a signaling peptide promotes cotyledon growth during Arabidopsis thaliana embryogenesis. Plant Biotechnol., 38 (3). S. 317 - 323. NARA: JAPANESE SOC PLANT CELL & MOLECULAR BIOLOGY. ISSN 1342-4580

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Abstract

The shoot organ boundaries have important roles in plant growth and morphogenesis. It has been reported that a gene encoding a cysteine-rich secreted peptide of the EPIDERMAL PATTERNING FACTOR-LIKE (EPFL) family, EPFL2, is expressed in the boundary domain between the two cotyledon primordia of Arabidopsis thaliana embryo. However, its developmental functions remain unknown. This study aimed to analyze the role of EPFL2 during embryogenesis. We found that cotyledon growth was reduced in its loss-of-function mutants, and this phenotype was associated with the reduction of auxin response peaks at the tips of the primordia. The reduced cotyledon size of the mutant embryo recovered in germinating seedlings, indicating the presence of a factor that acted redundantly with EPFL2 to promote cotyledon growth in late embryogenesis. Our analysis suggests that the boundary domain between the cotyledon primordia acts as a signaling center that organizes auxin response peaks and promotes cotyledon growth.

Item Type:	Journal Article
Creators:	Creators Email ORCID ORCID Put Code Fujihara, Rina UNSPECIFIED UNSPECIFIED UNSPECIFIED Uchida, Naoyuki UNSPECIFIED UNSPECIFIED UNSPECIFIED Tameshige, Toshiaki UNSPECIFIED UNSPECIFIED UNSPECIFIED Kawamoto, Nozomi UNSPECIFIED orcid.org/0000-0001-6565-7132 UNSPECIFIED Hotokezaka, Yugo UNSPECIFIED UNSPECIFIED UNSPECIFIED Higaki, Takumi UNSPECIFIED orcid.org/0000-0002-1379-3930 UNSPECIFIED Simon, Rudiger UNSPECIFIED UNSPECIFIED UNSPECIFIED Torii, Keiko U. UNSPECIFIED UNSPECIFIED UNSPECIFIED Tasaka, Masao UNSPECIFIED UNSPECIFIED UNSPECIFIED Aida, Mitsuhiro UNSPECIFIED orcid.org/0000-0001-9000-7502 UNSPECIFIED
URN:	urn:nbn:de:hbz:38-600700
DOI:	10.5511/plantbiotechnology.21.0508a
Journal or Publication Title:	Plant Biotechnol.
Volume:	38
Number:	3
Page Range:	S. 317 - 323
Date:	2021
Publisher:	JAPANESE SOC PLANT CELL & MOLECULAR BIOLOGY
Place of Publication:	NARA
ISSN:	1342-4580
Language:	English
Faculty:	Unspecified
Divisions:	Unspecified
Subjects:	no entry
Uncontrolled Keywords:	Keywords Language DEPENDENT AUXIN GRADIENTS; ERECTA FAMILY GENES; EXPRESSION; PATTERN; MODEL Multiple languages Biotechnology & Applied Microbiology; Plant Sciences Multiple languages
URI:	http://kups.ub.uni-koeln.de/id/eprint/60070