Publications by authors named "S Prat"

Transcription factors of the CYCLING DOF FACTOR (CDF) family activate in potato the SP6A FT tuberization signal in leaves. In modern cultivars, truncated StCDF1.2 alleles override strict SD control by stabilizing the StCDF1 protein, which leads to StCOL1 suppression and impaired activation of the antagonic SP5G paralog.

View Article and Find Full Text PDF
Article Synopsis
  • - The study investigates how ecology and social factors influence cognitive skills in primates by examining the size of specific brain regions related to metacognition and working memory in 16 primate species.
  • - Researchers found the volume of the frontal pole (FP) and dorso-lateral prefrontal cortex (DLPFC) is significantly related to body size, daily travel distance, and population density, indicating both ecological and social constraints play a role in cognitive evolution.
  • - The results suggest that ecological factors primarily drive brain region size, while social factors more strongly affect the FP, highlighting the importance of foraging and social interactions in the cognitive development of primates.
View Article and Find Full Text PDF
Article Synopsis
  • Ethylene response factor StPti5 in potatoes is identified as a susceptibility factor that negatively impacts immunity against pathogens like potato virus Y and Ralstonia solanacearum, which operate through different mechanisms.
  • The study reveals that StPti5 is broken down in healthy plants through autophagy but accumulates in the nucleus during infection, indicating its role in the plant's defense response.
  • It also shows that StPti5 is regulated by the interaction of ethylene and salicylic acid pathways, influencing other ERFs and downregulating the ubiquitin-proteasome pathway, contributing to understanding plant immunity regulation.
View Article and Find Full Text PDF

Growth at the shoot apical meristem (SAM) is essential for shoot architecture construction. The phytohormones gibberellins (GA) play a pivotal role in coordinating plant growth, but their role in the SAM remains mostly unknown. Here, we developed a ratiometric GA signaling biosensor by engineering one of the DELLA proteins, to suppress its master regulatory function in GA transcriptional responses while preserving its degradation upon GA sensing.

View Article and Find Full Text PDF