Role of mycorrhizae in P uptake Many plants have associations have a symbiotic relationship with mycorrhizae The plants supply mycorrhizae with C and the mycorrhizae supply the plant with nutrients 2. Mycorrhizae may increase P uptake by 3-5 times No mycorrhizae With mycorrhizae1. Many plants have associations have a symbiotic relationship with mycorrhizae The plants supply mycorrhizae with C and the mycorrhizae supply the plant with nutrients. 2. Mycorrhizae may increase P uptake by 3-5 times. Role of mycorrhizae in P uptake