id I10-R141-11086-552668
record_format dspace
institution Universidad Nacional de Córdoba
institution_str I-10
repository_str R-141
collection Repositorio Digital Universitario (UNC)
language Inglés
topic Base excision repair
DNA glycosylases
MBD4L
Seed ageing
Seed germination
DNA damage responses
spellingShingle Base excision repair
DNA glycosylases
MBD4L
Seed ageing
Seed germination
DNA damage responses
Lescano López, Ignacio
Torres, José Roberto
Cecchini, Nicolás Miguel
Alvarez, María Elena
Arabidopsis DNA glycosylase MBD4L improves recovery of aged seeds
topic_facet Base excision repair
DNA glycosylases
MBD4L
Seed ageing
Seed germination
DNA damage responses
description 2022 metrics. Journal Impact factor: 7.2
author2 https://orcid.org/0000-0002-1194-9508
author_facet https://orcid.org/0000-0002-1194-9508
Lescano López, Ignacio
Torres, José Roberto
Cecchini, Nicolás Miguel
Alvarez, María Elena
format publishedVersion
article
author Lescano López, Ignacio
Torres, José Roberto
Cecchini, Nicolás Miguel
Alvarez, María Elena
author_sort Lescano López, Ignacio
title Arabidopsis DNA glycosylase MBD4L improves recovery of aged seeds
title_short Arabidopsis DNA glycosylase MBD4L improves recovery of aged seeds
title_full Arabidopsis DNA glycosylase MBD4L improves recovery of aged seeds
title_fullStr Arabidopsis DNA glycosylase MBD4L improves recovery of aged seeds
title_full_unstemmed Arabidopsis DNA glycosylase MBD4L improves recovery of aged seeds
title_sort arabidopsis dna glycosylase mbd4l improves recovery of aged seeds
publisher Society for Experimental Biology
publishDate 2024
url http://hdl.handle.net/11086/552668
https://onlinelibrary.wiley.com/doi/abs/10.1111/tpj.16907
https://doi.org/10.1111/tpj.16907
work_keys_str_mv AT lescanolopezignacio arabidopsisdnaglycosylasembd4limprovesrecoveryofagedseeds
AT torresjoseroberto arabidopsisdnaglycosylasembd4limprovesrecoveryofagedseeds
AT cecchininicolasmiguel arabidopsisdnaglycosylasembd4limprovesrecoveryofagedseeds
AT alvarezmariaelena arabidopsisdnaglycosylasembd4limprovesrecoveryofagedseeds
_version_ 1806950033983012864
spelling I10-R141-11086-5526682024-07-11T06:22:12Z Arabidopsis DNA glycosylase MBD4L improves recovery of aged seeds Lescano López, Ignacio Torres, José Roberto Cecchini, Nicolás Miguel Alvarez, María Elena https://orcid.org/0000-0002-1194-9508 https://orcid.org/0000-0003-2775-4155 https://orcid.org/0000-0002-2894-7744 https://orcid.org/0000-0001-7001-5898 Base excision repair DNA glycosylases MBD4L Seed ageing Seed germination DNA damage responses 2022 metrics. Journal Impact factor: 7.2 info:eu-repo/semantics/publishedVersion Fil: Lescano López, Ignacio. Universidad Nacional de Córdoba. Facultad de Ciencias Químicas. Departamento de Química Biológica Ranwel Caputto; Argentina. Fil: Lescano López, Ignacio. Consejo Nacional de Investigaciones Científicas y Técnicas. Centro de Investigaciones en Química Biológica de Córdoba; Argentina. Fil: Torres, José Roberto. Universidad Nacional de Córdoba. Facultad de Ciencias Químicas. Departamento de Química Biológica Ranwel Caputto; Argentina. Fil: Torres, José Roberto. Consejo Nacional de Investigaciones Científicas y Técnicas. Centro de Investigaciones en Química Biológica de Córdoba; Argentina. Fil: Cecchini, Nicolás Miguel. Universidad Nacional de Córdoba. Facultad de Ciencias Químicas. Departamento de Química Biológica Ranwel Caputto; Argentina. Fil: Cecchini, Nicolás Miguel. Consejo Nacional de Investigaciones Científicas y Técnicas. Centro de Investigaciones en Química Biológica de Córdoba; Argentina. Fil: Álvarez, María Elena. Universidad Nacional de Córdoba. Facultad de Ciencias Químicas. Departamento de Química Biológica Ranwel Caputto; Argentina. Fil: Álvarez, María Elena. Consejo Nacional de Investigaciones Científicas y Técnicas. Centro de Investigaciones en Química Biológica de Córdoba; Argentina. DNA glycosylases initiate the base excision repair (BER) pathway by catalyzing the removal of damaged or mismatched bases from DNA. The Arabidopsis DNA glycosylase methyl-CpG-binding domain protein 4 like (MBD4L) is a nuclear enzyme triggering BER in response to the genotoxic agents 5-fluorouracil and 5-bromouracil. To date, the involvement of MBD4L in plant physiological processes has not been analyzed. To address this, we studied the enzyme functions in seeds. We found that imbibition induced the MBD4L gene expression by generating two alternative transcripts, MBD4L.3 and MBD4L.4. Gene activation was stronger in aged than in non-aged seeds. Seeds from mbd4l-1 mutants displayed germination failures when maintained under control or ageing conditions, while 35S:MBD4L.3/mbd4l-1 and 35S:MBD4L.4/mbd4l-1 seeds reversed these phenotypes. Seed nuclear DNA repair, assessed by comet assays, was exacerbated in an MBD4L-dependent manner at 24 h post-imbibition. Under this condition, the BER genes ARP, APE1L, and LIG1 showed higher expression in 35S:MBD4L.3/mbd4l-1 and 35S:MBD4L.4/mbd4l-1 than in mbd4l-1 seeds, suggesting that these components could coordinate with MBD4L to repair damaged DNA bases in seeds. Interestingly, the ATM, ATR, BRCA1, RAD51, and WEE1 genes associated with the DNA damage response (DDR) pathway were activated in mbd4l-1, but not in 35S:MBD4L.3/mbd4l-1 or 35S:MBD4L.4/mbd4l-1 seeds. These results indicate that MBD4L is a key enzyme of a BER cascade that operates during seed imbibition, whose deficiency would cause genomic damage detected by DDR, generating a delay or reduction in germination. info:eu-repo/semantics/publishedVersion Fil: Lescano López, Ignacio. Universidad Nacional de Córdoba. Facultad de Ciencias Químicas. Departamento de Química Biológica Ranwel Caputto; Argentina. Fil: Lescano López, Ignacio. Consejo Nacional de Investigaciones Científicas y Técnicas. Centro de Investigaciones en Química Biológica de Córdoba; Argentina. Fil: Torres, José Roberto. Universidad Nacional de Córdoba. Facultad de Ciencias Químicas. Departamento de Química Biológica Ranwel Caputto; Argentina. Fil: Torres, José Roberto. Consejo Nacional de Investigaciones Científicas y Técnicas. Centro de Investigaciones en Química Biológica de Córdoba; Argentina. Fil: Cecchini, Nicolás Miguel. Universidad Nacional de Córdoba. Facultad de Ciencias Químicas. Departamento de Química Biológica Ranwel Caputto; Argentina. Fil: Cecchini, Nicolás Miguel. Consejo Nacional de Investigaciones Científicas y Técnicas. Centro de Investigaciones en Química Biológica de Córdoba; Argentina. Fil: Álvarez, María Elena. Universidad Nacional de Córdoba. Facultad de Ciencias Químicas. Departamento de Química Biológica Ranwel Caputto; Argentina. Fil: Álvarez, María Elena. Consejo Nacional de Investigaciones Científicas y Técnicas. Centro de Investigaciones en Química Biológica de Córdoba; Argentina. 2024-07-10T23:04:25Z 2024-07-10T23:04:25Z 2024-06-04 article López, I. L., Torres, J. R., Cecchini, N. M., & Alvarez, M. E. (2024). Arabidopsis DNA glycosylase MBD4L improves recovery of aged seeds. The Plant journal: for cell and molecular biology. http://hdl.handle.net/11086/552668 1365-313X https://onlinelibrary.wiley.com/doi/abs/10.1111/tpj.16907 https://doi.org/10.1111/tpj.16907 eng Attribution-NonCommercial-NoDerivatives 4.0 International http://creativecommons.org/licenses/by-nc-nd/4.0/ Society for Experimental Biology