Improving plant responses to stress conditions might be possi-ble through treatment with specific products, made with naturalproducts and known as biostimulants. The application of biostim-ulants has a positive impact on plant nutrition and plant growth,and also provides anti-stress effects (Richardson et al., 2004). Theseimportant qualities highlight the importance of increasing theknowledge regarding their physiological functions, which are cur-rently unclear.