a ▁( child ▁of ▁the ▁earth , ▁earth - born ) ▁referring ▁to ▁the ▁isol ation ▁of ▁the ▁type ▁stra in ▁from ▁soil . ▁ ▁The ▁optim um ▁growth ▁temperature ▁for ▁T . ▁ter r igen a ▁is ▁ 3 0   ° C ▁and ▁can ▁grow ▁in ▁the ▁ 1 0 - 3 7   ° C ▁range . ▁The ▁optim um ▁p H ▁is ▁ 6 . 5 - 7 . 0 ▁and ▁can ▁grow ▁in ▁p H ▁ 5 . 0 - 8 . 5 . ▁ ▁References ▁ ▁Category : B acter ia ▁described ▁in ▁ 2 0 0 9 ▁Category : Act in om yc et ales <0x0A> </s> ▁Mark ▁Cl atten burg ▁( born ▁ 1 3 ▁March ▁ 1 9 7 5 ) ▁is ▁an ▁English ▁professional ▁football ▁ref eree . ▁ ▁Cl atten burg ▁is ▁a ▁former ▁member ▁of ▁the ▁Premier ▁League ▁and ▁the ▁Dur ham ▁County ▁Football ▁Association ▁and ▁also ▁a ▁former ▁FIFA ▁ref eree . ▁He ▁has ▁ref ere ed ▁a ▁number ▁of ▁notable ▁matches , ▁including ▁the ▁ 2 0 1 6 ▁UEFA ▁Champions ▁League ▁Final ▁and ▁the ▁UEFA ▁Euro ▁ 2 0 1 6 ▁Final . ▁Cl atten burg ▁is ▁considered ▁one ▁of ▁the ▁most ▁highly - r ated ▁European ▁ref ere es ▁of ▁his ▁generation . ▁ ▁Career ▁ ▁Early ▁career ▁Born ▁in ▁Cons ett , ▁County ▁Dur ham , ▁Cl atten burg ▁took ▁up ▁ref ere eing ▁in ▁ 1 9 9 0 ▁as ▁part ▁of ▁The ▁Duke ▁of