Integrated transcriptomic and metabolomic data reveal the cold stress responses molecular mechanisms of two coconut varieties

• DOI: 10.3389/fpls.2024.1353352
• Publication Date: 2024-04-16T04:57:02Z
• Authors: Jing Li; Fangyuan Wang; Md. Abu Sayed; XiaoJun Shen; Lixia Zhou; Xiaomei Liu; Xiwei Sun; Shuangyan Chen; Yi Wu; Lilan Lu; Shufang Gong; Amjad Iqbal; Yaodong Yang
• Keywords: Metabolome; Flavonoid Biosynthesis

Among tropical fruit trees, coconut holds significant edible and economic importance. The natural growth of coconuts faces a challenge in the form low temperatures, which is crucial factor among adverse environmental stresses impacting their geographical distribution. Hence, it essential to enhance our comprehension molecular mechanisms through cold stress influences various varieties. We employed analyses leaf morphology physiological traits examine how respond temperatures over 2-hour, 8-hour, 2-day, 7-day intervals. Additionally, we performed transcriptome metabolome identify shifts two varieties displaying distinct sensitivities stress. As length extended, there was prominent escalation within soluble protein (SP), proline (Pro) concentrations, activity peroxidase (POD) superoxide dismutase (SOD) leaves. Contrariwise, glutathione (GSH) underwent substantial reduction during this period. widespread analysis disclosed nexus genes metabolites intricately were chiefly involved pathways centered around amino acid, flavonoid, carbohydrate lipid metabolism. perceived several stress-responsive metabolites, such as flavonoids, carbohydrates, lipids, acids, unveiled considerably, lower genotype subtle Furthermore, uncovered pivotal acid biosynthesis, antioxidant system flavonoid biosynthesis pathway that presented down-regulation sensitive This study broadly enriches contemporary perception machinery contributes altering levels tolerance amid genotypes. It also unlocks unique prospects for exploration areas breeding or engineering, aiming identifying tolerant and/or encompassing multi-omics layers response conditions.