Methods, systems, and articles of manufacture consistent with certain principles related to the present invention enable a computing system to receive a serialized message including a target object that is associated with at least one member object. Microspore-containing plant segment from donor plants are harvested and incubated under pre-treatment conditions to maintain microspore at a uninucleate cell cycle G1 phase. The compressible element is positioned at least in part within the cavity of the pressure-sensitive component andor in a stretch of the passage of the supporting body that is close to the cavity of the pressure-sensitive component.