Imaduwage Iuh, Hewadikaram Madhavi
Department of Biomedical Sciences, Faculty of Science, NSBM Green University, Pitipana, Homagama, Sri Lanka.
Mol Hortic. 2024 May 15;4(1):20. doi: 10.1186/s43897-024-00094-3.
The plant genome exhibits a significant amount of transcriptional activity, with most of the resulting transcripts lacking protein-coding potential. Non-coding RNAs play a pivotal role in the development and regulatory processes in plants. Long non-coding RNAs (lncRNAs), which exceed 200 nucleotides, may play a significant role in enhancing plant resilience to various abiotic stresses, such as excessive heat, drought, cold, and salinity. In addition, the exogenous application of chemicals, such as abscisic acid and salicylic acid, can augment plant defense responses against abiotic stress. While how lncRNAs play a role in abiotic stress tolerance is relatively well-studied in model plants, this review provides a comprehensive overview of the current understanding of this function in horticultural crop plants. It also delves into the potential role of lncRNAs in chemical priming of plants in order to acquire abiotic stress tolerance, although many limitations exist in proving lncRNA functionality under such conditions.
植物基因组表现出大量的转录活性，产生的大多数转录本缺乏蛋白质编码潜力。非编码RNA在植物的发育和调控过程中起着关键作用。长度超过200个核苷酸的长链非编码RNA（lncRNA）可能在增强植物对各种非生物胁迫（如高温、干旱、寒冷和盐度）的耐受性方面发挥重要作用。此外，外源施用脱落酸和水杨酸等化学物质可以增强植物对非生物胁迫的防御反应。虽然lncRNA在模式植物中如何在非生物胁迫耐受性中发挥作用已得到相对充分的研究，但本综述全面概述了目前对园艺作物中该功能的理解。它还深入探讨了lncRNA在植物化学引发以获得非生物胁迫耐受性方面的潜在作用，尽管在证明这种条件下lncRNA的功能方面存在许多局限性。
