Role of CLE41 Peptide in the Development of Root Storage Parenchyma in Species of the Genus Raphanus L
CLE peptides (CLAVATA3/ENDOSPERM SURROUNDING REGION) are signal molecules or plant peptide hormones that play an important role in regulation of development of various meristems governing the expression of WOX ( WUSCHEL-RELATED HOMEOBOX ) genes. In particular, CLE peptides belonging to a small TDIF...
Saved in:
Published in | Russian journal of plant physiology Vol. 65; no. 4; pp. 498 - 511 |
---|---|
Main Authors | , , |
Format | Journal Article |
Language | English |
Published |
Moscow
Pleiades Publishing
01.07.2018
Springer Nature B.V |
Subjects | |
Online Access | Get full text |
Cover
Loading…
Summary: | CLE peptides (CLAVATA3/ENDOSPERM SURROUNDING REGION) are signal molecules or plant peptide hormones that play an important role in regulation of development of various meristems governing the expression of
WOX
(
WUSCHEL-RELATED HOMEOBOX
) genes. In particular, CLE peptides belonging to a small TDIF (Tracheary Element Differentiation Inhibitory Factor) group are responsible for the operation of gene
WOX4
controlling the development of cambium and the conducting system. We looked into the role of CLE41 peptide from the TDIF group in the development of storage root in two species of the genus
Raphanus
: cultivated radish (
Raphanus sativus
var.
radicula
Pers.) that is a popular root crop with a storage root and its ancestor wild radish (
Raphanus raphanistrum
L.) where storage parenchyma of the root is poorly developed. It was shown that overexpression of gene
RsCLE41
and plant treatment with exogenous peptide CLE41 influenced the development of cambium and xylem in the roots of
R. sativus
and
R. raphanistrum
and affected expression of the genes from different groups. One could say that peptide CLE41 activates expression of the genes whose homologues in arabidopsis play a key role in the maintenance of cambium (
RsWOX4
,
RsWOX14
,
RsHAM4
, and
RsCYCD3
). In the storage root of radish, peptide CLE41 activates proliferation of cambium cells reducing the amount of one of the xylem’s elements (lignified parenchyma). The obtained results point to an important role of CLE41 in the development of storage root in radish. |
---|---|
ISSN: | 1021-4437 1608-3407 |
DOI: | 10.1134/S1021443718030032 |