Fig. 6. Ecological race and interactions of microbial partners attracted by the rich root–rhizosphere niche under limited available resources in the hyperarid desert.

Schematic illustration of microbial communities associated with S. ciliata rhizosheath–root system (RS and RH) and NV soil and their contribute to niche-ecosystem functioning. Environmental, ecological, and functional characteristics of microbial communities associated with S. ciliata rhizosheath–root system and NV soil are reported considering both plant/soil–microbe and microbe–microbe interactions. Trophic modes and functions from metagenomes are resumed. More detailed explanation is reported in the “Discussion” section of the manuscript.