AUTHOR=Kościelniak Paulina , Glazińska Paulina , Kȩsy Jacek , Zadworny Marcin 

TITLE=Formation and Development of Taproots in Deciduous Tree Species

JOURNAL=Frontiers in Plant Science

VOLUME=Volume 12 - 2021

YEAR=2021

URL=https://www.frontiersin.org/journals/plant-science/articles/10.3389/fpls.2021.772567

DOI=10.3389/fpls.2021.772567

ISSN=1664-462X

ABSTRACT=Trees are generally long-lived and are therefore exposed to numerous episodes of adverse environmental conditions. Some trees have evolved long taproots as an adaptive response to drought, increasing their ability to acquire water from deeper soil layers. Despite their significant roles, little is known about the genes, phytohormones, micro-RNAs regulating taproot formation and growth, or the effect of external factors such as drought. The interaction of internal and external stimuli, involving complex signaling pathways, regulates taproot growth through the integration of taproot tip formation and the regulation of cell division in the root apical meristem (RAM), as well as subsequent elongation. Assuming that the RAM is the primary regulatory center responsible for taproot growth and cessation, knowledge of the factors affecting the RAM function would provide fundamental information on the mechanisms affecting taproot development.