The gynoecium, the female reproductive part of the flower, is key for plant sexual reproduction. During its development, inner tissues such as the septum and the transmitting tract tissue, important for pollen germination and guidance, are formed. In Arabidopsis, several transcription factors are known to be involved in the development of these tissues. One of them is NO TRANSMITTING TRACT (NTT), essential for transmitting tract formation. We found that the NTT protein can interact with several gynoecium-related transcription factors, including several MADS-box proteins like SEEDSTICK (STK), known to specify ovule identity. Evidence suggests that NTT and STK control enzyme and transporter-encoding genes involved in cell wall polysaccharide and lipid distribution in gynoecial medial domain cells. The results indicate that the simultaneous loss of NTT and STK activity affects polysaccharide and lipid deposition, septum fusion, and delays entry of septum cells to their normal degradation program. Furthermore, we identified KAWAK, a direct target of NTT and STK, which is required for the correct formation of fruits in Arabidopsis. These findings position NTT and STK as important factors in determining reproductive competence.

New roles of NO TRANSMITTING TRACT and SEEDSTICK during medial domain development in Arabidopsis fruits / H. Herrera-Ubaldo, P. Lozano-Sotomayor, I. Ezquer, M. Di Marzo, R.A. Chávez Montes, A. Gómez-Felipe, J. Pablo-Villa, D. Diaz-Ramirez, P. Ballester, C. Ferrándiz, M. Sagasser, L. Colombo, N. Marsch-Martínez, S. de Folter. - In: DEVELOPMENT. - ISSN 0950-1991. - 146:1(2019 Jan), pp. dev172395.1-dev172395.14.

New roles of NO TRANSMITTING TRACT and SEEDSTICK during medial domain development in Arabidopsis fruits

I. Ezquer;M. Di Marzo;C. Ferrándiz;L. Colombo;
2019

Abstract

The gynoecium, the female reproductive part of the flower, is key for plant sexual reproduction. During its development, inner tissues such as the septum and the transmitting tract tissue, important for pollen germination and guidance, are formed. In Arabidopsis, several transcription factors are known to be involved in the development of these tissues. One of them is NO TRANSMITTING TRACT (NTT), essential for transmitting tract formation. We found that the NTT protein can interact with several gynoecium-related transcription factors, including several MADS-box proteins like SEEDSTICK (STK), known to specify ovule identity. Evidence suggests that NTT and STK control enzyme and transporter-encoding genes involved in cell wall polysaccharide and lipid distribution in gynoecial medial domain cells. The results indicate that the simultaneous loss of NTT and STK activity affects polysaccharide and lipid deposition, septum fusion, and delays entry of septum cells to their normal degradation program. Furthermore, we identified KAWAK, a direct target of NTT and STK, which is required for the correct formation of fruits in Arabidopsis. These findings position NTT and STK as important factors in determining reproductive competence.
English
Cell wall; Fruit; Gynoecium; KAWAK; Lipids; Medial domain; NO TRANSMITTING TRACT; Polysaccharide; SEEDSTICK; Septum
Settore BIO/01 - Botanica Generale
Articolo
Esperti anonimi
Pubblicazione scientifica
   Exploring the molecular control of seed yield in crops
   ExpoSEED
   EUROPEAN COMMISSION
   H2020
   691109

   MADS box transcription factors: interactions between metabolic pathways and seed development
   METMADS
   EUROPEAN COMMISSION
   FP7
   PIEF GA 2011 302606
gen-2019
12-dic-2018
Company of Biologists
146
1
dev172395
1
14
14
Pubblicato
Periodico con rilevanza internazionale
crossref
Aderisco
info:eu-repo/semantics/article
New roles of NO TRANSMITTING TRACT and SEEDSTICK during medial domain development in Arabidopsis fruits / H. Herrera-Ubaldo, P. Lozano-Sotomayor, I. Ezquer, M. Di Marzo, R.A. Chávez Montes, A. Gómez-Felipe, J. Pablo-Villa, D. Diaz-Ramirez, P. Ballester, C. Ferrándiz, M. Sagasser, L. Colombo, N. Marsch-Martínez, S. de Folter. - In: DEVELOPMENT. - ISSN 0950-1991. - 146:1(2019 Jan), pp. dev172395.1-dev172395.14.
open
Prodotti della ricerca::01 - Articolo su periodico
14
262
Article (author)
si
H. Herrera-Ubaldo, P. Lozano-Sotomayor, I. Ezquer, M. Di Marzo, R.A. Chávez Montes, A. Gómez-Felipe, J. Pablo-Villa, D. Diaz-Ramirez, P. Ballester, C....espandi
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Utilizza questo identificativo per citare o creare un link a questo documento: https://hdl.handle.net/2434/607162
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