Multi-omics analyses to assess the effects of multi-layer cultivation with supplemental LED lighting on potato yield and quality
Abstract
Integrating a vertical layout into greenhouse allows space-efficient cultivation and energy saving; however, shading of the lower canopy makes supplemental artificial lighting necessary. Here, we investigated the effect of red-blue LED supplementation in a vertical greenhouse system for potato cultivation on plant growth, tuber yield, and mineral and metabolite composition, compared to full natural sunlight as a control. Cultivation units were designed to simulate a multiple-layer growing system, in which the uppermost level received only natural light, while LEDs integrated reduced light intensity in the shaded lower level up to 300 µmol m-2 s-1. Despite the lower daily light integral, LED-supplemented plants showed higher photosynthetic activity and slower decline in leaf chlorophyll content over time, which contributed to higher tuber yield compared to the control. Multi-omics analyses on tuber tissues revealed coordinated metabolic reprogramming. Transcriptomic data showed up-regulation of genes involved in photosynthesis, sugar metabolism, and polyamine biosynthesis in LED-treated plants, together with down-regulation of stress-related genes. Proteomic and metabolomic profiling partially confirmed such trends, highlighting a down-representation of stress-responsive proteins as well as reduced levels of polyphenols, glycoalkaloids and enzymes related to their biosynthesis, highlighting an overall metabolic shift toward an attenuated stress response. In parallel, plants…
Read the paper
Related studies
- Chaos and quantum thermalization
- The Dalton quantum chemistry program system
- Cord Blood Leptin and Adiponectin as Predictors of Adiposity in Children at 3 Years of Age: A Prospective Cohort Study
- Quantitative metabolomics by H-NMR and LC-MS/MS confirms altered metabolic pathways in diabetes
- Stable adiabatic quantum batteries
- A novel self-lipid antigen targets human T cells against CD1c(+) leukemias
Go deeper in Evidence Hub
Evidence Hub adds a study data sheet (design, sample size, evidence level, key numbers), an AI summary and a chat grounded in the paper's text.