Publications by authors named "Mario Gutierrez Rodriguez"
The MADS-box gene XAANTAL1 participates in Arabidopsis thaliana primary root growth and columella stem cell patterns in response to ROS, via direct regulation of PEROXIDASE 28 and RETINOBLASTOMA RELATED.
Estephania Zluhan-Martínez Claudio A Castañón-Suárez Mario A Gutiérrez-Rodríguez Fernando Lledías Tao Zhang
J Exp Bot
October 2024
Article Synopsis
- The balance between cell growth and differentiation in plants is influenced by gene regulatory networks and signal transduction pathways, particularly involving reactive oxygen species (ROS) and transcription factors (TFs).
- In the model organism Arabidopsis thaliana, the MADS-box transcription factor XAANTAL1 (XAL1) plays a crucial role in mediating the effects of hydrogen peroxide (H2O2) on primary root growth and stem cell identity.
- XAL1 enhances H2O2 levels in the root meristem by regulating stress response genes and is key to inhibiting primary root growth through its negative regulation of peroxidase and catalase activities, while also promoting columella stem cell differentiation.
Zooarchaeological analyses of the skeletal remains of 52 animals unearthed in the courtyard of an Iron Age Tartessian building known as Casas del Turuñuelo (Badajoz, Spain) shed light on a massive sacrifice forming part of a series of rituals linked to the site's last period of activity and final abandonment. The rites took place towards the end of the 5th century BCE when both the building (intentionally destroyed) and the sacrificed animals were intentionally buried under a tumulus 90 m in diameter and 6 m high. The main objective of the zooarchaeological and microstratigraphic analyses was to determine the phasing of the sacrificial depositions.
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