Adventitious root formation in Populus trichocarpa involves complex cellular events

ABSTRACT: Stem cuttings of P. trichocarpa (clone 101-74) were rooted in liquid medium without growth regulators (basal medium). The first emerging roots were observed on cuttings 6 days after the start of culture. The highest average root number per cutting (10 ± 2 roots/cutting) was obtained after 14 days. The first macroscopic evidence of root initiation was the appearance of root primordia, as lateral bulges observed at the stem surface 3 to 4 days after transfer to basal medium. Stem cross-sections showed intensely dividing cells forming root primordial. One to two days later the bark split and the organized sequence of cell division and differentiation steps in the primordium led to the establishment of the main root tissues, as well as the vascular connections of the incipient root with the p

ORGANISM(S): Populus trichocarpa

SUBMITTER: Annegret Kohler 

PROVIDER: E-GEOD-34096 | biostudies-arrayexpress |

REPOSITORIES: biostudies-arrayexpress