Jarde, E. | Search bioRxiv

bioRxiv2024

Setting Climate Targets: The Case of Higher Education and Research

The carbon footprint and low-carbon strategies of higher education and research organizations have been the subject of scientific articles and reports. However, these provide few details on the reduction targets themselves, leaving the question of how should higher education and research organizations define and construct their climate targets and trajectories unanswered. The present paper fills this gap. We first review and analyze the documents describing the climate strategies of 53 higher education and research organizations coming from 11 countries, based on their detailed GreenHouse Gas emissions (GHGs) reporting. The selected reports include at least one target re-duction for at least one target year. Then, on the basis of this analysis we propose guidelines to encourage and help higher education and research organizations set rele-vant climate targets.

scientific communication and education↗

bioRxiv2022

Wide genome transcription and metabolome profiles reprogrammed by sucrose under xenobiotic constraints

Plants have developed strategies to adapt quickly to environmental changes. However, the regulation of these adaptive responses and coordination of signals network remains poorly understood for many environmental constraints. Indeed, signalling molecules play a central role in environmental stimuli and may coordinate plants development under environmental cues. Sucrose is the major transport carbohydrate in higher plants, in addition to its metabolic role; recent investigations suggested that sucrose impact the plasticity of plant development by controlling gene expression. Sucrose was also suggested as a ROS scavenger and as a signalling molecule. In this paper we showed that sucrose mitigated phenanthrene induced stress. Since, exogenous sucrose allowed growth and chlorophyll accumulation in the presence of high phenanthrene concentrations, whereas Arabidopsis development was blocked and seedlings were unable to accumulate chlorophyll in the presence of phenanthrene solely. To decipher the earlier molecular changes involved in sucrose tolerance to phenanthrene, wide transcriptional genes analysis and targeted metabolic profiling were carried out. We showed that sucrose driving plant response was associated with a deep reconfiguration of both genes expression and metabolites accumulation during the first hours of treatment, suggesting that sucrose, allowed plants to sustain the primary metabolism and to overcome the phenanthrene induced injuries.

ecology↗