Light Quantity Impacts Early Response to Cold and Cold Acclimation in Young Leaves of Arabidopsis

• DOI: 10.1111/pce.15481
• Publication Date: 2025-03-30T13:20:18Z
• Authors: Markéta Luklová; Marieke Dubois; Michaela Kameniarová; Klára Plačková; Jan Novák; Romana Kopecká; Michal Karady; Jaroslav Pavlů; Jan Skalák; Sunita Jindal; Ljiljana Tubić; Zainab Quddoos; Ondřej Novák; Dirk Inzé; Martin Černý
• Keywords: Proteome; ribosome biogenesis

Plant reactions to stress vary with development stage and fitness. This study assessed the relationship between light chilling in Arabidopsis acclimation. By analysing transcriptome proteome responses of expanding leaves subjected varying intensity cold, 2251 2064 early response genes proteins were identified, respectively. Many these represent as a yet unknown part illustrating development-dependent duality plant adaptations. While standard promoted photosynthetic upregulation, plastid maintenance, increased resilience, low triggered unique metabolic shift, prioritizing ribosome biogenesis lipid metabolism attenuating expression associated immunity. The comparison young that expanded ones showed striking differences, suggesting sacrifice support ones. Validations selected DEGs mutant background confirmed role HSP90-1, transcription factor FLZ13, Phospholipase A1 (PLIP) PLIP family emerged crucial promoting acclimation freezing tolerance. findings highlight dynamic mechanisms enable plants adapt challenging environments pave way for genetically modified crops enhanced