▁carbon ▁is ▁taken ▁up , ▁by ▁the ▁fung i , ▁as ▁an ▁array ▁of ▁pe pt ide ▁and ▁car bo h yd rate ▁species ▁often ▁the ▁products ▁of ▁sap roph yt ic ▁re actions ▁taking ▁place ▁in ▁the ▁soil . ▁These ▁re actions ▁are ▁often ▁inst ig ated ▁and ▁progress ed ▁by ▁the ▁activity ▁of ▁the ▁my cor rh iz al ▁fung us , ▁being ▁part ▁of ▁the ▁bas idi om yc ete ▁ph y la , ▁orch id ▁associated ▁fung i ▁have ▁an ▁extensive ▁met abol ic ▁ar sen al ▁with ▁which ▁to ▁pull ▁from , ▁and ▁are ▁readily ▁able ▁to ▁dig est ▁cell ul ose ▁and ▁l ign in ▁to ▁obtain ▁the ▁carbon . ▁Gen es ▁encoding ▁prote ases , ▁cell ul ose ▁and ▁l ign in ▁dig est ive ▁en zym es , ▁as ▁well ▁as ▁o lig ope pt ide ▁and ▁car bo h yd rate ▁trans por ters ▁are ▁up reg ulated ▁in ▁the ▁my cel ial ▁soil ▁web s ▁to ▁facil itate ▁increased ▁carbon ▁u pt ake . ▁Further ▁more ▁the ▁fung i ▁which ▁my co h eter ot roph ically ▁interact ▁with ▁orch id ▁plants ▁are ▁often ▁also ▁found ▁in ▁my cor rh iz al ▁association ▁with ▁be ech ▁trees , ▁and ▁trans location ▁of ▁photos yn th ate ▁from ▁tree ▁to ▁fung us ▁and ▁then ▁to ▁orch id ▁has ▁been ▁proposed , ▁but ▁a ▁thorough ▁study ▁is ▁still ▁lack ing . ▁Once ▁acquired ▁by ▁the ▁fung us ▁the ▁carbon ▁is ▁either ▁converted ▁into ▁sug ars