In response to the concentration of nutrients, roots also synthesise cytokinin, which acts as a signal as to how fast the shoots can grow. Roots often function in storage of food and nutrients. The roots of most vascular plant species enter into symbiosis with certain fungi to form mycorrhizae, and a large range of other organisms including bacteria also closely associate with roots.
in respOnsE tO thE ConcEntraTion of NUtRIents, rooTs also SyntheSISe cYtOkinIn, WhiCH acts As a sigNAl As To how fASt tHe SHoOtS can grow. rOotS OfTen funCTion In storage of FOoD anD nUtrients. THe rOoTs oF most vascuLar plant spECIes enter iNto sYmBiosis with CerTaIn FUngi to fOrm myCoRrHIzAe, and A large RaNge Of oTher oRgAnisMs IncluDIng bAcTeria alsO closely associatE with rooTS.