After sonication, {HEAD ~ the plant sample} is cultured under {TAIL ~ conditions} that induce morphogenesis to produce plant tissue that will mature into a transformed plant 
is cultured under
After sonication , { HEAD ~ the plant sample } is cultured under { TAIL ~ conditions } that induce morphogenesis to produce plant tissue that will mature into a transformed plant
OTH OTH OTH HEAD HEAD HEAD HEAD HEAD HEAD HEAD REL REL REL TAIL TAIL TAIL TAIL TAIL OTH OTH OTH OTH OTH OTH OTH OTH OTH OTH OTH OTH OTH OTH