Immunodetection of some pectic, arabinogalactan proteins and hemicellulose epitopes in the micropylar transmitting tissue of apomictic dandelions (Taraxacum, Asteraceae, Lactuceae)

doi:10.1007/s00709-016-0980-0

Immunodetection of some pectic, arabinogalactan proteins and hemicellulose epitopes in the micropylar transmitting tissue of apomictic dandelions (Taraxacum, Asteraceae, Lactuceae)

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Immunodetection of some pectic, arabinogalactan proteins and hemicellulose epitopes in the micropylar transmitting tissue of apomictic dandelions (Taraxacum, Asteraceae, Lactuceae)

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Bibliographic description

punktacja MEiN [2017 A]: 30

title:	Immunodetection of some pectic, arabinogalactan proteins and hemicellulose epitopes in the micropylar transmitting tissue of apomictic dandelions (Taraxacum, Asteraceae, Lactuceae)
author:	Gawecki Robert, Sala Katarzyna, Kurczyńska Ewa U., Świątek Piotr, Płachno Bartosz
journal title:	Protoplasma
volume:	254
issue:	2
date of publication :	2017
pages:	657-668
ISSN:	0033-183X
eISSN:	1615-6102
DOI:	10.1007/s00709-016-0980-0
notes:	Bibliogr. s. 666-668
language:	English
journal language:	English
abstract in English:	In apomictic Taraxacum species, the development of both the embryo and the endosperm does not require double fertilisation. However, a structural reduction of ovular transmitting tissue was not observed in apomictic dandelions. The aim of this study was to analyse the chemical composition of the cell walls to describe the presence of arabinogalactan proteins (AGPs), hemicellulose and some pectic epitopes in the micropylar transmitting tissue of apomictic Taraxacum. The results point to (1) the similar distribution of AGPs in different developmental stages, (2) the absence of highly methyl-esterified homogalacturonan (HG) in transmitting tissue of ovule containing a mature embryo sac and the appearance of this pectin domain in the young seed containing the embryo and endosperm, (3) the similar pattern of low methyl-esterified pectin occurrence in both an ovule and a young seed with an embryo and endosperm in apomictic Taraxacum and (4) the presence of hemicelluloses recognised by LM25 and LM21 antibodies in the reproductive structure of Taraxacum.
keywords in English:	ovule, transmitting tissue, gynoecium, dandelions, asteraceae, apomixis, arabinogalactan proteins, pectins, hemicellulose, Taraxacum
affiliation:	Wydział Biologii i Nauk o Ziemi : Instytut Botaniki
type:	journal article
subtype:	academic paper