Carluccio Giambattista, Greco Davide, Sabella Erika, Vergine Marzia, De Bellis Luigi, Luvisi Andrea
Department of Biological and Environmental Sciences and Technologies, University of Salento, 73100 Lecce, Italy.
Pathogens. 2023 Jun 12;12(6):825. doi: 10.3390/pathogens12060825.
The maintenance of an intact water column in the xylem lumen several meters above the ground is essential for woody plant viability. In fact, abiotic and biotic factors can lead to the formation of emboli in the xylem, interrupting sap flow and causing consequences on the health status of the plant. Anyway, the tendency of plants to develop emboli depends on the intrinsic features of the xylem, while the cyto-histological structure of the xylem plays a role in resistance to vascular pathogens, as in the case of the pathogenic bacterium . Analysis of the scientific literature suggests that on grapevine and olive, some xylem features can determine plant tolerance to vascular pathogens. However, the same trend was not reported in citrus, indicating that interactions with host plants differ by species. Unfortunately, studies in this area are still limited, with few explaining inter- insights. Thus, in a global context seriously threatened by , a deeper understanding of the relationship between the physical and mechanical characteristics of the xylem and resistance to stresses can be useful for selecting that may be more resistant to environmental changes, such as drought and vascular pathogens, as a way to preserve agricultural productions and ecosystems.
在高于地面数米的木质部导管中维持完整的水柱对于木本植物的生存至关重要。事实上，非生物和生物因素可导致木质部形成栓塞，中断汁液流动并对植物健康状况产生影响。无论如何，植物形成栓塞的倾向取决于木质部的内在特征，而木质部的细胞组织学结构在抵抗维管束病原体方面发挥作用，例如致病细菌的情况。科学文献分析表明，在葡萄树和橄榄树上，一些木质部特征可决定植物对维管束病原体的耐受性。然而，柑橘类植物中未报告相同趋势，这表明与寄主植物的相互作用因物种而异。不幸的是，该领域的研究仍然有限，很少有解释性的见解。因此，在受到[此处原文缺失具体威胁内容]严重威胁的全球背景下，深入了解木质部的物理和机械特性与抗逆性之间的关系，对于选择可能更耐干旱和维管束病原体等环境变化的[此处原文缺失具体选择对象内容]很有用，以此来保护农业生产和生态系统。
