Differential ion transport mechanisms in arabidopsis and crops

The ability of plants to cope with environmental fluctuations relies on efficient sensing, signaling, and response mechanisms. In this regard, the functionality and regulation of ion transport systems are critical for plant resilience under challenging conditions. Most studies on this subject have been carried out in Arabidopsis (Arabidopsis thaliana), which has led to the rapid development of general molecular models for ion transport. However, research conducted in recent years unveiled substantial differences between arabidopsis and crops such as tomato or rice. These differences relate to the energization of root K⁺ uptake, and the role of high-affinity K⁺ transporter (HAK) proteins in salt tolerance, fertility, and Ca²⁺-signaling regulatory networks. We conclude that research beyond arabidopsis is required to uncover the species-specific mechanisms governing climate change resilience.