▁of ▁nut ri ents ▁taken ▁in ▁by ▁such ▁organ isms ▁must ▁be ▁able ▁to ▁provide ▁carbon , ▁prote ins , ▁vit am ins ▁and ▁in ▁some ▁cases , ▁ ions . ▁Due ▁to ▁the ▁carbon ▁composition ▁of ▁the ▁majority ▁of ▁organ isms , ▁dead ▁and ▁organ ic ▁matter ▁provide ▁rich ▁sources ▁of ▁dis ac char ides ▁and ▁pol ys ac char ides ▁such ▁as ▁ ▁mal to se ▁and ▁st arch , ▁and ▁of ▁the ▁mon os ac char ide ▁gl uc ose . ▁ ▁In ▁terms ▁of ▁nit ro gen - rich ▁sources , ▁sap rot roph s ▁require ▁combined ▁protein ▁for ▁the ▁creation ▁of ▁prote ins , ▁which ▁is ▁facil itated ▁by ▁the ▁absor ption ▁of ▁am ino ▁ac ids , ▁and ▁usually ▁taken ▁from ▁rich ▁soil . ▁Although ▁both ▁ ions ▁and ▁vit am ins ▁are ▁rare , ▁th iam ine ▁or ▁ ions ▁such ▁as ▁pot ass ium , ▁ph osph orus , ▁and ▁mag nes ium ▁aid ▁the ▁growth ▁of ▁the ▁my cel ium . ▁''' ▁ ▁See ▁also ▁▁▁ ▁De compos ers ▁ ▁Det rit iv ore ▁ ▁Chem o aut ot roph ic ▁nut r ition ▁ ▁Ph oto aut ot roph ic ▁nut r ition ▁ ▁Hol oz o ic ▁nut r ition ▁ ▁Par as it ic ▁nut r ition ▁ ▁My cor rh iz al ▁fung i ▁and ▁soil ▁carbon ▁storage ▁ ▁Wood - dec ay ▁fung us ▁ ▁References ▁ ▁Further ▁reading ▁ ▁Category : N ut r ition ▁Category : My