RT Journal Article
T1 Lateral root development differs between main and secondary roots and depends on the ecotype
A1 Perotti, María Florencia
A1 Ariel, Federico D
A1 Chan, Raquel Lía
K1 Raíces (Botánica) - Fisiología
AB Root architecture depends on the development of the main root and also on the number and density of lateral roots. Most molecular knowledge about the development of lateral roots was acquired studying primary roots, and it was implied that high order roots follow the same pattern. Recently, we informed that AtHB23 is differentially regulated in primary and secondary roots. Here we show that LBD16, a target of AtHB23, also is differentially regulated; it is expressed in the tip of secondary and tertiary roots but not in primary ones. Moreover, the key hormone auxin exhibits a different distribution pattern in secondary and tertiary roots, according to the reporter DR5. Finally, we show that in Col 0 and Ler ecotypes development of secondary and tertiary roots exhibits significant variations. Altogether, we can conclude that different genetic programs govern secondary and tertiary roots development and such processes are dependent on the Arabidopsis genotype.
PB Taylor & Francis Group
YR 2020
FD 2020-04-20
LK https://hdl.handle.net/10630/44664
UL https://hdl.handle.net/10630/44664
LA eng
NO Perotti, M. F., Ariel, F. D., & Chan, R. L. (2020). Lateral root development differs between main and secondary roots and depends on the ecotype. Plant Signaling & Behavior, 15(6).
NO Consejo Nacional de Investigaciones Científicas y Técnicas (CONICET)
NO Agencia Nacional de Promoción Científica y Tecnológica
NO Universidad Nacional del Litoral
DS RIUMA. Repositorio Institucional de la Universidad de Málaga
RD 28 feb 2026