scholarly journals Chromatin Remodeling in Stem Cell Maintenance in Arabidopsis thaliana

2009 ◽  
Vol 2 (4) ◽  
pp. 600-609 ◽  
Author(s):  
Wen-Hui Shen ◽  
Lin Xu
Keyword(s):  
Arabidopsis Thaliana ◽  
Stem Cell ◽  
Chromatin Remodeling ◽  
Stem Cell Maintenance ◽  
Cell Maintenance

scholarly journals Author Correction: Sirtinol, a Sir2 protein inhibitor, affects stem cell maintenance and root development in Arabidopsis thaliana by modulating auxin-cytokinin signaling components

2020 ◽  
Vol 10 (1) ◽  
Author(s):  
Sharmila Singh ◽  
Alka Singh ◽  
Sandeep Yadav ◽  
Vibhav Gautam ◽  
Archita Singh ◽  
...  
Keyword(s):  
Arabidopsis Thaliana ◽  
Stem Cell ◽  
Root Development ◽  
Protein Inhibitor ◽  
Cytokinin Signaling ◽  
Stem Cell Maintenance ◽  
Signaling Components ◽  
Cell Maintenance

An amendment to this paper has been published and can be accessed via a link at the top of the paper.

scholarly journals Mutations in two non-canonical Arabidopsis SWI2/SNF2 chromatin remodeling ATPases cause embryogenesis and stem cell maintenance defects

2012 ◽  
Vol 72 (6) ◽  
pp. 1000-1014 ◽  
Author(s):  
Yi Sang ◽  
Claudia O. Silva-Ortega ◽  
Shuang Wu ◽  
Nobutoshi Yamaguchi ◽  
Miin-Feng Wu ◽  
...  
Keyword(s):  
Stem Cell ◽  
Chromatin Remodeling ◽  
Stem Cell Maintenance ◽  
Cell Maintenance

scholarly journals Sirtinol, a Sir2 protein inhibitor, affects stem cell maintenance and root development in Arabidopsis thaliana by modulating auxin-cytokinin signaling components

2017 ◽  
Vol 7 (1) ◽  
Author(s):  
Sharmila Singh ◽  
Alka Singh ◽  
Sandeep Yadav ◽  
Vibhav Gautam ◽  
Archita Singh ◽  
...  
Keyword(s):  
Arabidopsis Thaliana ◽  
Stem Cell ◽  
Auxin Signaling ◽  
Cytokinin Signaling ◽  
Cytokinin Biosynthesis ◽  
Stem Cell Maintenance ◽  
Meristem Maintenance ◽  
2,4 Dichlorophenoxyacetic Acid ◽  
Signaling Components ◽  
Cell Maintenance

Abstract In Arabidopsis thaliana, besides several key transcription factors and chromatin modifiers, phytohormones auxin and cytokinin play pivotal role in shoot and root meristem maintenance, and lateral root (LR) development. Sirtinol, a chemical inhibitor of Sir2 proteins, is known to promote some auxin induced phenotypes in Arabidopsis. However, its effect on plant stem cell maintenance or organ formation remained unaddressed. Here we show that sirtinol affects meristem maintenance by altering the expression of key stem cell regulators, cell division and differentiation by modulating both auxin and cytokinin signaling in Arabidopsis thaliana. The expression of shoot stem cell niche related genes WUSCHEL (WUS) and CLAVATA3 (CLV3) was upregulated, whereas SHOOT MERISTEMLESS (STM) was downregulated in sirtinol treated seedlings. The expression level and domain of key root stem cell regulators PLETHORA (PLTs) and WUS-Related Homeobox 5 (WOX5) were altered in sirtinol treated roots. Sirtinol affects LR development by disturbing proper auxin transport and maxima formation, similar to 2,4-dichlorophenoxyacetic acid (2,4-D). Sirtinol also affects LR formation by altering cytokinin biosynthesis and signaling genes in roots. Therefore, sirtinol affects shoot and root growth, meristem maintenance and LR development by altering the expression of cytokinin-auxin signaling components, and regulators of stem cells, meristems, and LRs.

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