The importance of prenol lipids in mitigating salt stress in the leaves of Tilia × euchlora trees

Abstract

Key message Plants use multiple mechanisms to deal with salt stress. Salt stress increases the content of polyprenols inTilia’s leaves, which may mitigate stress. Abstract De-icing salt has been used on streets and pavements in most northern countries since the 1960s. Salt stress limits all vital functions of trees. Tilia × euchlora is planted in many cities given its unique decorative qualities. The aim of this study was to determine the tree strategy to mitigate salt stress due to the synthesis of polyprenols in leaves. Many years of observations have demonstrated that trees of the same species growing in the same street conditions may have extremely different health statuses. The study consisted of two experiments: a field experiment with urban street trees growing in saline soils and a controlled pot experiment with young trees exposed to increasing doses of salt. The differences between the young trees from the pot experiment and older trees from the field experiment were expressed in their ability to synthesize polyprenols. In urban conditions, the tree leaves with less damage contained significantly more polyprenols than did those with more damage. The salt stress mitigation strategy may be related to the ability to synthesize polyprenols. This ability can be acquired through adaptation by older trees. The mechanism involves limiting the transport of Cl− and Na+ to leaves. In the pot experiment, the young trees did not exhibit this ability.

Metabolomics analysis of the effect of acidification on rhizosphere soil microecosystem of tea tree

“…Azoles compounds were a class of antifungal compounds that played an important role in the control of plant pathogens (Rhijn et al, 2021;Sun et al, 2022b). Prenol lipids were natural antibiotics, which were beneficial to alleviate the damage caused by adversity stress and improved the adaptability of plants to the environment (Baczewska-Dabrowska et al, 2022). It could be seen that with the increase of tea tree rhizosphere soil pH, the content of prenol lipids compounds in rhizosphere soil of tea tree increased, and the ability of tea tree to resist the stress of external environment increased, which in turn improved the adaptability of tea tree to the environment; in addition, the content of naphthalenes, piperidines and azoles compounds increased, which reduced the propagation of pathogenic microorganisms in soil, improved the soil microecological environment and enhanced the ability of tea tree to resist pests and diseases; the increase in the content of diazines, purine nucleotides, fatty acyls compounds provided raw materials for the propagation of beneficial microorganisms in the rhizosphere soil of tea tree, and increased the diversity and number of soil microorganisms.…”

Adaptation of the maize seedling seminal roots to srought: Essential role of plasma membrane H+-ATPases activity

“…It has been postulated that unsaturated plant polyprenols and dolichols have antioxidant potential and may be responsible for maintaining the fluidity of cell membranes (Swiezewska & Danikiewicz, 2005). Baczewska-Dąbrowska et al (2022) showed that under salt stress in street conditions, the leaves of Tilia × euchlora contained more polyprenols than non-saline growing leaves (Baczewska-Dąbrowska et al, 2022). ese results suggest that the accumulation of polyisoprenoids in leaves might mitigate salt stress, possibly by acting as free radical scavengers and blocking the transport of sodium and chloride to leaves.…”

A Metabolome Analysis and the Immunity of Phlomis purpurea against Phytophthora cinnamomi

“…Information on the role of prenol lipids in plant biotic stress is scarce. Baczewska-Dąbrowska et al [ 55 ] reported on the role of polyprenols in mitigating salt stress in the leaves of Tilia x euchlora trees. According to these authors, this mechanism may be due to the capacity of limiting the transport of Cl – and Na + to leaves.…”