Fig. 4From: Development and testing of a 3D-printable polylactic acid device to optimize a water bioremediation processA. cepa root and shoot growth following seed imbibition with untreated or treated water from the Cildáñez stream. UW, untreated water: Cildáñez stream water before the bioprocess; TW, treated water: Cildáñez stream water after a 5-day bioprocess using the confined system (red PLA devices); DW: distilled water. MI: mitotic index of root tip cells. Measurements were performed as described in “Materials and methods”. Letters indicate significant differences for the same plant organ (p < 0.05)Back to article page