Spatio-Temporal Patterns in Rhizosphere Oxygen Profiles in the Emergent Plant Species Acorus calamus
Figure 2
Root diameter and internal oxygen saturation in seedlings of Acorus calamus.
The root diameters (a) were measured with a vernier caliper, and the internal oxygen saturations (b) were measured with a micro-optode at 1/4, 1/2, 3/4, and 1 (apex/root tip) along the entire root. Data points and vertical bars represent the mean of triplicates (each value was the mean of 30 reads from 3 roots of 3 seedlings each) and standard error, respectively. Different indices indicate that there is a significant difference according to the Students–Newman–Keuls test with a confidence limit of 95%. Note that the vertical scale is not the same for different positions.