TY - JOUR
T1 - Expression of a repressor form of the Arabidopsis thaliana transcription factor TCP16 induces the formation of ectopic meristems
AU - Uberti-Manassero, Nora G.
AU - Coscueta, Ezequiel R.
AU - Gonzalez, Daniel H.
PY - 2016/11/1
Y1 - 2016/11/1
N2 - Plants that express a fusion of the Arabidopsis thaliana class I TCP transcription factor TCP16 to the EAR repressor domain develop several phenotypic alterations, including rounder leaves, short petioles and pedicels, and delayed elongation of sepals, petals and anthers. In addition, these plants develop lobed cotyledons and ectopic meristems. Ectopic meristems are formed on the adaxial side of cotyledon petioles and arise from a cleft that is formed at this site. Analysis of the expression of reporter genes indicated that meristem genes are reactivated at the site of emergence of ectopic meristems, located near the bifurcation of cotyledon veins. The plants also show increased transcript levels of the boundary-specific CUP-SHAPED COTYLEDON (CUC) genes. The results suggest that TCP16 is able to modulate the induction of meristematic programs and the differentiation state of plant cells.
AB - Plants that express a fusion of the Arabidopsis thaliana class I TCP transcription factor TCP16 to the EAR repressor domain develop several phenotypic alterations, including rounder leaves, short petioles and pedicels, and delayed elongation of sepals, petals and anthers. In addition, these plants develop lobed cotyledons and ectopic meristems. Ectopic meristems are formed on the adaxial side of cotyledon petioles and arise from a cleft that is formed at this site. Analysis of the expression of reporter genes indicated that meristem genes are reactivated at the site of emergence of ectopic meristems, located near the bifurcation of cotyledon veins. The plants also show increased transcript levels of the boundary-specific CUP-SHAPED COTYLEDON (CUC) genes. The results suggest that TCP16 is able to modulate the induction of meristematic programs and the differentiation state of plant cells.
KW - Arabidopsis thaliana
KW - EAR domain
KW - Ectopic meristem
KW - Plant development
KW - TCP domain
KW - Transcription factor
UR - http://www.scopus.com/inward/record.url?scp=84977658157&partnerID=8YFLogxK
U2 - 10.1016/j.plaphy.2016.06.031
DO - 10.1016/j.plaphy.2016.06.031
M3 - Article
C2 - 27404135
AN - SCOPUS:84977658157
SN - 0981-9428
VL - 108
SP - 57
EP - 62
JO - Plant Physiology and Biochemistry
JF - Plant Physiology and Biochemistry
ER -