id	keyword
bionys-620	mycorrhizal
bionys-620	terebinthus
bionys-620	fungi
bionys-620	soil
bionys-620	colonization
bionys-620	guetia
bionys-620	amf
bionys-620	senelba
bionys-620	pistacia
bionys-620	plant
bionys-620	root
bionys-620	forest
bionys-620	species
bionys-620	nutrient