The area of agricultural land on saline soils is increasing as a result of climate change and more frequent droughts. Since salt at high concentration is toxic to most plants, cultivation on such soils is becoming more and more difficult and induces yield losses. There is therefore a need for strategies to grow plants on saline soils. Farooq et al. review the mechanisms of maize resistance under salt stress. They propose solutions such as the use of arbuscular mycorrhizal fungi to improve plant nutrition.