Summary of project PR002471
This data is available at the NIH Common Fund's National Metabolomics Data Repository (NMDR) website, the Metabolomics Workbench, https://www.metabolomicsworkbench.org, where it has been assigned Project ID PR002471. The data can be accessed directly via it's Project DOI: 10.21228/M87K19 This work is supported by NIH grant, U2C- DK119886.
See: https://www.metabolomicsworkbench.org/about/howtocite.php
| Project ID: | PR002471 |
| Project DOI: | doi: 10.21228/M87K19 |
| Project Title: | Project Al-Ula Saudi Arabia: Enabling Ecophysiological Research on Haloxylon salicornicum in the Sharaan Nature Reserve |
| Project Summary: | We attempted to elucidate the metabolic mechanisms involved in Haloxylon salicornicum's natural adaptations to drought and soil properties, as well as to identify key metabolites that are regulated in a rhythmic and seasonal manner in response to these environmental conditions. To this end, plants were studied across two soil types (clay and sandy), two seasons (winter and summer), and two time points (dawn and midday). Hydric status and primary metabolites were evaluated using untargeted metabolomics. Soil type had minimal impact on physiological and metabolic responses. However, H. salicornicum exhibited marked diel and seasonal variations in metabolism. During winter, higher water potential (–1 MPa) supported anabolic pathways such as carbon assimilation and the biosynthesis of amino acids and carbohydrates. In contrast, summer drought conditions (–5 MPa) led to the suppression of anabolic activities and the activation of catabolic pathways, including starch degradation, to sustain energy metabolism. The synthesis of antioxidants such as ascorbic and caffeic acids further contributed to cellular protection under stress. These results highlight the metabolic plasticity of H. salicornicum and offer valuable insights into its adaptive strategies, laying the groundwork for future studies on the genetic regulation of drought tolerance in desert ecosystems. |
| Institute: | KAUST |
| Department: | Biological and Environmental Science and Engineering Division |
| Laboratory: | Biological and Environmental Science and Engineering Division |
| Last Name: | Sioud |
| First Name: | Salim |
| Address: | 4700 KAUST, Thuwal, Mecca, 23955-6900, Saudi Arabia |
| Email: | salim.sioud@kaust.edu.sa |
| Phone: | +966128082959 |
Summary of all studies in project PR002471
| Study ID | Study Title | Species | Institute | Analysis(* : Contains Untargted data) | Release Date | Version | Samples | Download(* : Contains raw data) |
|---|---|---|---|---|---|---|---|---|
| ST003943 | Fluctuations in the metabolome of Haloxylon salicornicum under environmental, seasonal, and diurnal variations in a desert environment | Haloxylon salicornicum | King Abdullah University of Science and Technology | MS | 2025-06-24 | 1 | 48 | Uploaded data (12.3G)* |
