Results 11 to 20 of about 29,146 (264)

Tissue-specific epigenetic modifications in root apical meristem cells of Hordeum vulgare. [PDF]

PLoS ONE, 2013
Epigenetic modifications of chromatin structure are essential for many biological processes, including growth and reproduction. Patterns of DNA and histone modifications have recently been widely studied in many plant species, although there is virtually
Agnieszka J Braszewska-Zalewska, Elzbieta A Wolny, Lukasz Smialek, Robert Hasterok   +3 more
doaj   +6 more sources

A perspective on cell proliferation kinetics in the root apical meristem. [PDF]

J Exp Bot, 2021
Abstract Organogenesis in plants is primarily postembryonic and relies on a strict balance between cell division and cell expansion. The root is a particularly well-suited model to study cell proliferation in detail since the two processes are spatially and temporally separated for all the different tissues.
Desvoyes B, Echevarría C, Gutierrez C.
europepmc   +7 more sources

The class VIII myosin ATM1 is required for root apical meristem function.

Development, 2023
ABSTRACT Myosins are evolutionarily conserved motor proteins that interact with actin filaments to regulate organelle transport, cytoplasmic streaming and cell growth. Plant-specific class XI myosin proteins direct cell division and root organogenesis. However, the roles of plant-specific class VIII myosin proteins in plant growth and
Olatunji D, Clark NM, Kelley DR.
europepmc   +4 more sources

Auxin Metabolism in the Root Apical Meristem [PDF]

Plant Physiology, 2000
Abstract Within the root meristem of flowering plants is a group of mitotically inactive cells designated the quiescent center (QC). Recent work links the quiescent state to high levels of the growth regulator auxin that accumulates in the QC via polar transport. This in turn results in elevated levels of the enzyme ascorbic acid oxidase
N M, Kerk, K, Jiang, L J, Feldman
openaire   +2 more sources

Enhancement of developmental defects in the boron‐deficient maize mutant tassel‐less1 by reduced auxin levels

Journal of Plant Nutrition and Soil Science, EarlyView., 2023
Abstract Background Plant responses to deficiencies of the micronutrient boron are diverse and go beyond the well‐characterized function of boron in cell wall crosslinking. To explain these phenotypic discrepancies, hypotheses about interactions of boron with various phytohormones have been proposed, particularly auxin.
Michaela S. Matthes, Norman B. Best, Janlo M. Robil, Paula McSteen   +3 more
wiley   +1 more source

eIF4E1 Regulates Arabidopsis Embryo Development and Root Growth by Interacting With RopGEF7

Frontiers in Plant Science, 2022
Eukaryotic translation initiation factor 4E1 (eIF4E1) is required for the initiation of protein synthesis. The biological function of eIF4E1 in plant–potyvirus interactions has been extensively studied.
Taibo Liu, Taibo Liu, Taibo Liu, Qianyu Liu, Qianyu Liu, Qianyu Liu, Zhen Yu, Zhen Yu, Zhen Yu, Chunling Wang, Chunling Wang, Huafu Mai, Huafu Mai, Huafu Mai, Guolan Liu, Guolan Liu, Ruijing Li, Ruijing Li, Gang Pang, Gang Pang, Gang Pang, Dingwu Chen, Dingwu Chen, Huili Liu, Huili Liu, Huili Liu, Jiangyi Yang, Li-Zhen Tao, Li-Zhen Tao, Li-Zhen Tao   +29 more
doaj   +1 more source

The plastidial folylpolyglutamate synthetase and root apical meristem maintenance [PDF]

Plant Signaling & Behavior, 2011
Folylpolyglutamate synthetase (FPGS) catalyzes the attachment of glutamate residues to the folate molecule in plants. Three isoforms of FPGS have been identified in Arabidopsis and these are localized in the plastid (AtDFB), mitochondria (AtDFC), and cytosol (AtDFD). We recently determined that mutants in the AtDFB (At5G05980) gene disrupt primary root
Avinash C, Srivastava, Yuhong, Tang, Rocío I Díaz, de la Garza, Elison B, Blancaflor   +3 more
openaire   +2 more sources

Cadmium and arsenic-induced-stress differentially modulates Arabidopsis root architecture, peroxisome distribution, enzymatic activities and their nitric oxide content [PDF]

, 2020
In plant cells, cadmium (Cd) and arsenic (As) exert toxicity mainly by inducing oxidative stress through an imbalance between the production of reactive oxygen species (ROS) and reactive nitrogen species (RNS), and their detoxification. Nitric oxide (NO)
Altamura, M. M., Corpas, F. J., D'Angeli, S., Falasca, G., Piacentini, D.   +4 more
core   +2 more sources

Transcriptional profiling of Medicago truncatula meristematic root cells

BMC Plant Biology, 2008
Background The root apical meristem of crop and model legume Medicago truncatula is a significantly different stem cell system to that of the widely studied model plant species Arabidopsis thaliana. In this study we used the Affymetrix Medicago GeneChip®
Rolfe Barry G, Weiller Georg F, Goffard Nicolas, Holmes Peta, Imin Nijat   +4 more
doaj   +1 more source

Maintenance of stem cell activity in plant development and stress responses

Frontiers in Plant Science, 2023
Stem cells residing in plant apical meristems play an important role during postembryonic development. These stem cells are the wellspring from which tissues and organs of the plant emerge. The shoot apical meristem (SAM) governs the aboveground portions
Huankai Zhang, Yangwei Mu, Hui Zhang, Caiyu Yu   +3 more
doaj   +1 more source