EurekaMag.com logo
+ Site Statistics
References:
53,869,633
Abstracts:
29,686,251
+ Search Articles
+ Subscribe to Site Feeds
EurekaMag Most Shared ContentMost Shared
EurekaMag PDF Full Text ContentPDF Full Text
+ PDF Full Text
Request PDF Full TextRequest PDF Full Text
+ Follow Us
Follow on FacebookFollow on Facebook
Follow on TwitterFollow on Twitter
Follow on LinkedInFollow on LinkedIn

+ Translate

RCD1 and SRO1 are necessary to maintain meristematic fate in Arabidopsis thaliana



RCD1 and SRO1 are necessary to maintain meristematic fate in Arabidopsis thaliana



Journal of Experimental Botany 62(3): 1271-1284



The radical-induced cell death1 and similar to RCD ONE1 genes of Arabidopsis thaliana encode members of the poly(ADP-ribose) polymerase (PARP) superfamily and have pleiotropic functions in development and abiotic stress response. In order to begin to understand the developmental and molecular bases of the defects seen in rcd1-3; sro1-1 plants, this study used the root as a model. Double mutant roots are short and display abnormally organized root apical meristems. However, acquisition of most cell fates within the root is not significantly disrupted. The identity of the quiescent centre is compromised, the zone of cell division is smaller than in wild-type roots and abnormal divisions are common, suggesting that RCD1 and SRO1 are necessary to maintain cells in a division-competent state and to regulate division plane placement. In addition, differentiation of several cell types is disrupted in rcd1-3; sro1-1 roots and shoots, demonstrating that RCD1 and SRO1 are also necessary for proper cell differentiation. Based on the data shown in this article and previous work, we hypothesize that RCD1 and SRO1 are involved in redox control and, in their absence, an altered redox balance leads to abnormal development.

(PDF emailed within 0-6 h: $19.90)

Accession: 055333745

Download citation: RISBibTeXText

PMID: 21172813

DOI: 10.1093/jxb/erq363



Related references

Unequally redundant RCD1 and SRO1 mediate stress and developmental responses and interact with transcription factors. Plant Journal 60(2): 268-279, 2009

RCD1-DREB2A interaction in leaf senescence and stress responses in Arabidopsis thaliana. Biochemical Journal 442(3): 573-581, 2012

Maize similar to RCD1 gene induced by salt enhances Arabidopsis thaliana abiotic stress resistance. Biochemical and Biophysical Research Communications, 2018

Overexpression of the RADICAL-INDUCED CELL DEATH1 (RCD1) gene of Arabidopsis causes weak rcd1 phenotype with compromised oxidative-stress responses. Bioscience, Biotechnology, and Biochemistry 70(8): 1827-1831, 2006

The CUP-SHAPED COTYLEDON2 and 3 genes have a post-meristematic effect on Arabidopsis thaliana phyllotaxis. Annals of Botany 115(5): 807-820, 2016

Sister chromatids are often incompletely aligned in meristematic and endopolyploid interphase nuclei of Arabidopsis thaliana. Genetics 172(1): 467-475, 2005

CLASP promotes stable tethering of endoplasmic microtubules to the cell cortex to maintain cytoplasmic stability in Arabidopsis meristematic cells. Plos One 13(6): E0198521-E0198521, 2018

Gravitropism of Arabidopsis thaliana roots requires the polarization of PIN2 toward the root tip in meristematic cortical cells. Plant Cell 22(6): 1762-1776, 2010

Somatic embryogenesis in Arabidopsis thaliana is facilitated by mutations in genes repressing meristematic cell divisions. Genetics 149(2): 549-563, 1998

Functional alterations of root meristematic cells of Arabidopsis thaliana induced by a simulated microgravity environment. Journal of Plant Physiology 207(): 30-41, 2016

Expression patterns of GASA genes in Arabidopsis thaliana: the GASA4 gene is up-regulated by gibberellins in meristematic regions. Plant Molecular Biology 36(6): 871-883, 1998

Facilitated initiation of somatic embryogenesis in Arabidopsis thaliana by mutations in genes repressing meristematic cell divisions. Plant biotechnology and in vitro biology in the 21st century Proceedings of the IXth International Congress of the International Association of Plant Tissue Culture and Biotechnology, Jerusalem, Israel, 14-19 June 1998: 73-76, 1999

Genetic interaction between glabra3-shapeshifter and siamese in Arabidopsis thaliana converts trichome precursors into cells with meristematic activity. Plant Journal 52(2): 352-361, 2007

Cortical microtubule orientation in Arabidopsis thaliana root meristematic zone depends on cell division and requires severing by katanin. Journal of Biological Research 25: 12-12, 2018

Interphase chromosome arrangement in Arabidopsis thaliana is similar in differentiated and meristematic tissues and shows a transient mirror symmetry after nuclear division. Genetics 176(2): 853-863, 2007