Next Article in Journal
Altered Structural Expression and Enzymatic Activity Parameters in Quiescent Ulcerative Colitis: Are These Potential Normalization Criteria?
Next Article in Special Issue
Comprehensive Phosphoproteomic Analysis of Pepper Fruit Development Provides Insight into Plant Signaling Transduction
Previous Article in Journal
Promoting Roles of Embryonic Signals in Embryo Implantation and Placentation in Cooperation with Endocrine and Immune Systems
Previous Article in Special Issue
Transcriptomics and Proteomics Reveal the Cellulose and Pectin Metabolic Processes in the Tension Wood (Non-G-Layer) of Catalpa bungei
Open AccessArticle

At-Hook Motif Nuclear Localised Protein 18 as a Novel Modulator of Root System Architecture

1
Department of Experimental Biology of Plants, Faculty of Science, Charles University, 128 44 Prague, Czech Republic
2
Departamento de Biología Molecular de Plantas, Instituto de Biotecnología, Universidad Nacional Autónoma de México, Avenida Universidad 2001, Colonia Chamilpa, Cuernavaca, Morelos 62210, Mexico
3
Laboratorio Nacional de Genómica para la Biodiversidad, Centro de Investigación y de Estudios Avanzados del Instituto Politécnico Nacional Irapuato, Guanajuato 36821, Mexico
*
Author to whom correspondence should be addressed.
Int. J. Mol. Sci. 2020, 21(5), 1886; https://doi.org/10.3390/ijms21051886
Received: 14 February 2020 / Revised: 3 March 2020 / Accepted: 6 March 2020 / Published: 10 March 2020
(This article belongs to the Special Issue Plant Cell and Organism Development)
The At-Hook Motif Nuclear Localized Protein (AHL) gene family encodes embryophyte-specific nuclear proteins with DNA binding activity. They modulate gene expression and affect various developmental processes in plants. We identify AHL18 (At3G60870) as a developmental modulator of root system architecture and growth. AHL18 is involved in regulation of the length of the proliferation domain and number of dividing cells in the root apical meristem and thereby, cell production. Both primary root growth and lateral root development respond according to AHL18 transcription level. The ahl18 knock-out plants show reduced root systems due to a shorter primary root and a lower number of lateral roots. This change results from a higher number of arrested and non-developing lateral root primordia (LRP) rather than from a decreased LRP initiation. The over-expression of AHL18 results in a more extensive root system, longer primary roots, and increased density of lateral root initiation events. AHL18 is thus involved in the formation of lateral roots at both LRP initiation and their later development. We conclude that AHL18 participates in modulation of root system architecture through regulation of root apical meristem activity, lateral root initiation and emergence; these correspond well with expression pattern of AHL18. View Full-Text
Keywords: AT-hook motif nuclear protein 18; AHL18; At3G60870; Arabidopsis; Lateral root development; Root apical meristem; Cell proliferation AT-hook motif nuclear protein 18; AHL18; At3G60870; Arabidopsis; Lateral root development; Root apical meristem; Cell proliferation
Show Figures

Figure 1

MDPI and ACS Style

Širl, M.; Šnajdrová, T.; Gutiérrez-Alanís, D.; Dubrovsky, J.G.; Vielle-Calzada, J.P.; Kulich, I.; Soukup, A. At-Hook Motif Nuclear Localised Protein 18 as a Novel Modulator of Root System Architecture. Int. J. Mol. Sci. 2020, 21, 1886.

Show more citation formats Show less citations formats
Note that from the first issue of 2016, MDPI journals use article numbers instead of page numbers. See further details here.

Article Access Map by Country/Region

1
Search more from Scilit
 
Search
Back to TopTop