Rhizosphere effect on microbial community structure and relative abundance.

<p>Principal coordinate analysis calculated based on the microarray results for each sampling site separately. Only presence or absence of the probes was considered. All the replicates are represented in the figures. Red dots represent <i>Colobanthus quitensis;</i> Green dots represent <i>Deschampsia antarctica</i>; and yellow dots represent bulk soil samples. <i>Insets</i>: relative abundance of the main bacterial phyla quantified by qPCR. An average of the qPCR triplicates results of each sample is presented.