The MADS-domain transcription factor SEEDSTICK (STK) controls several aspects of plant reproduction. STK is co-expressed with CESTA (CES), a basic Helix-Loop-Helix (bHLH) transcription factor-encoding gene. CES was reported to control redundantly with the brassinosteroid positive signaling factors BRASSINOSTEROID ENHANCED EXPRESSION1 (BEE1) and BEE3 the development of the transmitting tract. Combining the stk ces-4 mutants led to a reduction in ovule fertilization due to a defect in carpel fusion which, caused the formation of holes at the center of the septum where the transmitting tract differentiates. Combining the stk mutant with the bee1 bee3 ces-4 triple mutant showed an increased number of unfertilized ovules and septum defects. The transcriptome profile of this quadruple mutant revealed a small subset of differentially expressed genes which are mainly involved in cell death, extracellular matrix and cell wall development. Our data evidence a regulatory gene network controlling transmitting tract development regulated directly or indirectly by a STK-CES containing complex and reveal new insights in the regulation of transmitting tract development by bHLH and MADS-domain transcription factors.
MADS-Box and bHLH Transcription Factors Coordinate Transmitting Tract Development in Arabidopsis thaliana / M. Di Marzo, I. Roig-Villanova, E. Zanchetti, F. Caselli, V. Gregis, P. Bardetti, M. Chiara, A. Guazzotti, E. Caporali, M.A. Mendes, L. Colombo, M.M. Kater. - In: FRONTIERS IN PLANT SCIENCE. - ISSN 1664-462X. - 11(2020 May 06).
Titolo: | MADS-Box and bHLH Transcription Factors Coordinate Transmitting Tract Development in Arabidopsis thaliana |
Autori: | DI MARZO, MAURIZIO (Primo) COLOMBO, LUCIA (Penultimo) KATER, MARTIN (Ultimo) (Corresponding) |
Parole Chiave: | bHLH, cell death, cell wall, extracellular matrix, MADS-box, transmitting tract |
Settore Scientifico Disciplinare: | Settore BIO/01 - Botanica Generale Settore BIO/18 - Genetica Settore BIO/11 - Biologia Molecolare |
Data di pubblicazione: | 6-mag-2020 |
Rivista: | |
URL: | https://www.frontiersin.org/articles/10.3389/fpls.2020.00526/full#h1 |
Tipologia: | Article (author) |
Data ahead of print / Data di stampa: | 6-mag- 202 |
Digital Object Identifier (DOI): | http://dx.doi.org/10.3389/fpls.2020.00526 |
Appare nelle tipologie: | 01 - Articolo su periodico |
File in questo prodotto:
File | Descrizione | Tipologia | Licenza | |
---|---|---|---|---|
Di Marzo et al 2020.pdf | Transmitting tract manuscript | Publisher's version/PDF | Open Access Visualizza/Apri |