How about we just concentrate on plants we KNOW can thrive in low phosphorus conditions for today. White lupine (Lupinus albus) is a very P-deficient tolerant plant species and thus it can be used for studying its adaptations to low phosphorus.
When under phosphorus stress, white lupin has been shown to develop many lateral roots that contain several clusters. These clusters are subsequently covered with root hairs. These adaptations all serve to increase the surface area of the roots to allow the crops to absorb more phosphorus. These roots can also release organic acids, as I have previously discussed, to help mobilize the phosphate from its insoluble form.
