Salt stress and tomato resilience: understanding somatic and intergenerational priming mechanisms in plant adaptation
Abstract
Salt stress is a major environmental challenge that impacts agricultural productivity worldwide. Tomato (Solanum lycopersicum), a widely cultivated crop, is highly sensitive to salinity, which affects growth, yield, and quality. Recent studies have shown that tomato plants have the ability to adapt to salt stress through mechanisms such as somatic and intergenerational priming memory. Somatic priming refers to the ability of an individual plant to enhance its tolerance to stress after a previous exposure, while intergenerational priming involves the transmission of stress-induced adaptive traits from parent plants to their offspring. This paper examines the physiological, molecular, and epigenetic processes involved in these priming mechanisms, highlighting how these forms of memory can contribute to improved tomato resilience in saline environments. Understanding these processes provides a foundation for developing salt-tolerant tomato varieties through breeding and biotechnological approaches.
Keywords
Salt stress, tomato resilience, somatic primingHow to Cite
References
Kovalchuk, I. Role of epigenetic factors in response to stress and establishment of somatic memory of stress exposure in plants. Plants 2023, 12, 3667. [Google Scholar] [CrossRef] [PubMed]
Lagiotis, G.; Madesis, P.; Stavridou, E. Echoes of a stressful past: Abiotic stress memory in crop plants towards enhanced adaptation. Agriculture 2023, 13, 2090. [Google Scholar] [CrossRef]
Zulfiqar, F. Effect of seed priming on horticultural crops. Sci. Hortic. 2021, 286, 110197. [Google Scholar] [CrossRef]
Devika, O.S.; Singh, S.; Sarkar, D.; Barnwal, P.; Suman, J.; Rakshit, A. Seed Priming: A potential supplement in integrated resource management under fragile intensive ecosystems. Front. Sustain. Food Syst. 2021, 5, 654001. [Google Scholar] [CrossRef]
Abdulraheem, M.I.; Xiong, Y.; Moshood, A.Y.; Cadenas-Pliego, G.; Zhang, H.; Hu, J. Mechanisms of plant epigenetic regulation in response to plant stress: Recent discoveries and implications. Plants 2024, 13, 163. [Google Scholar] [CrossRef] [PubMed]
Sani, E.; Herzyk, P.; Perrella, G.; Colot, V.; Amtmann, A. Hyperosmotic priming of Arabidopsis seedlings establishes a long-term somatic memory accompanied by specific changes of the epigenome. Genome Biol. 2013, 14, R59. [Google Scholar] [CrossRef] [PubMed]
Kapazoglou, A.; Tani, E.; Avramidou, E.V.; Abraham, E.M.; Gerakari, M.; Megariti, S.; Doupis, G.; Doulis, A.G. Epigenetic changes and transcriptional reprogramming upon woody plant grafting for crop sustainability in a changing environment. Front. Plant Sci. 2021, 11, 613004. [Google Scholar] [CrossRef]
Mauch-Mani, B.; Baccelli, I.; Luna, E.; Flors, V. Defense priming: An adaptive part of induced resistance. Annu. Rev. Plant Biol. 2017, 68, 485–512. [Google Scholar] [CrossRef] [PubMed]
Hu, T.; Jin, Y.; Li, H.; Amombo, E.; Fu, J. Stress memory induced transcriptional and metabolic changes of perennial ryegrass (Lolium perenne) in response to salt stress. Physiol. Plant. 2016, 156, 54–69. [Google Scholar] [CrossRef] [PubMed]
Mladenov, V.; Fotopoulos, V.; Kaiserli, E.; Karalija, E.; Maury, S.; Baranek, M.; Segal, N.; Testillano, P.S.; Vassileva, V.; Pinto, G.; et al. Deciphering the epigenetic alphabet involved in transgenerational stress memory in crops. Int. J. Mol. Sci. 2021, 22, 7118. [Google Scholar] [CrossRef]
Yadav, N.S.; Titov, V.; Ayemere, I.; Byeon, B.; Ilnytskyy, Y.; Kovalchuk, I. Multigenerational exposure to heat stress induces phenotypic resilience, and genetic and epigenetic variations in Arabidopsis thaliana offspring. Front. Plant Sci. 2022, 13, 728167. [Google Scholar] [CrossRef] [PubMed]
Yung, W.S.; Wang, Q.; Huang, M.; Wong, F.L.; Liu, A.; Ng, M.S.; Li, K.P.; Sze, C.C.; Li, M.W.; Lam, H.M. Priming-induced alterations in histone modifications modulate transcriptional responses in soybean under salt stress. Plant J. 2022, 109, 1575–1590. [Google Scholar] [CrossRef] [PubMed]
Biswas, S.; Seal, P.; Majumder, B.; Biswas, A.K. Efficacy of seed priming strategies for enhancing salinity tolerance in plants: An overview of the progress and achievements. Plant Stress 2023, 9, 100186. [Google Scholar] [CrossRef]
Bharti, P.; Mahajan, M.; Vishwakarma, A.K.; Bhardwaj, J.; Yadav, S.K. AtROS1 overexpression provides evidence for epigenetic regulation of genes encoding enzymes of flavonoid biosynthesis and antioxidant pathways during salt stress in transgenic tobacco. J. Exp. Bot. 2015, 66, 5959–5969. [Google Scholar] [CrossRef] [PubMed]
Liu, J.; Feng, L.; Gu, X.; Deng, X.; Qiu, Q.; Li, Q.; Zhang, Y.; Wang, M.; Deng, Y.; Wang, E.; et al. An H3K27me3 demethylase-HSFA2 regulatory loop orchestrates transgenerational thermomemory in Arabidopsis. Cell Res. 2019, 29, 379–390. [Google Scholar] [CrossRef] [PubMed]
Torres, E.S.; Deal, R.B. The histone variant H2A.Z and chromatin remodeler BRAHMA act coordinately and antagonistically to regulate transcription and nucleosome dynamics in Arabidopsis. Plant J. 2019, 99, 144–162. [Google Scholar] [CrossRef] [PubMed]
Suter, L.; Widmer, A. Environmental heat and salt stress induce transgenerational phenotypic changes in Arabidopsis thaliana. PLoS ONE 2013, 8, e60364. [Google Scholar] [CrossRef]
Borromeo, I.; Domenici, F.; Del Gallo, M.; Forni, C. Role of polyamines in the response to salt stress of tomato. Plants 2023, 12, 1855. [Google Scholar] [CrossRef] [PubMed]
Borromeo, I.; Domenici, F.; Giordani, C.; Del Gallo, M.; Forni, C. Enhancing bean (Phaseolus vulgaris L.) resilience: Unveiling the role of halopriming against saltwater stress. Seeds 2024, 3, 228–250. [Google Scholar] [CrossRef]
Borromeo, I.; De Luca, A.; Domenici, F.; Giordani, C.; Rossi, L.; Forni, C. Antioxidant properties of Lippia alba essential oil: A potential treatment for oxidative stress-related conditions in plants and cancer cells. Int. J. Mol. Sci. 2024, 25, 8276. [Google Scholar] [CrossRef]
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