Results 281 to 290 of about 32,066 (307)

Hormone mediated regulation of the shoot apical meristem

Plant Molecular Biology, 2008
Recent work on hormone mediated regulation of the SAM is reviewed, emphasizing how combinations of genetic, molecular and modelling approaches have refined models based on classic experimental and physiological work. Special emphasis is given to newly described mechanisms that modulate the responsiveness of specific tissues to hormones and their ...
openaire   +2 more sources

DNA methylation dynamics in the shoot apical meristem

Journal of Experimental Botany
Abstract The shoot apical meristem (SAM) is pivotal for plant development, acting as the source of all aerial tissues and the origin of the gametes. Despite extensive knowledge of the regulation of stem cell pool size, organ initiation, and patterning at the SAM periphery, the epigenetic landscape of SAM cells remains largely unexplored.
Jie Yang, Frank Johannes
openaire   +2 more sources

Formation, Maintenance and Function of the Shoot Apical Meristem in Rice

Plant Molecular Biology, 2006
In higher plants, the process of embryogenesis establishes the plant body plan (body axes). On the basis of positional information specified by the body axes, the shoot apical meristem (SAM) and root apical meristem (RAM) differentiate at fixed positions early in embryogenesis.
Jun-ichi, Itoh, Yutaka, Sato, Yasuo, Nagato, Makoto, Matsuoka   +3 more
openaire   +2 more sources

Establishment of the embryonic shoot apical meristem in Arabidopsis thaliana

Journal of Plant Research, 2010
In higher plants, shoot organs such as leaves, branches, and flowers are generated from the shoot apical meristem (SAM), a small group of undifferentiated cells located at the tip of the shoot. The SAM maintains its pluripotency and simultaneously produces lateral organs at its periphery. The SAM arises during embryogenesis and its positioning requires
Seiji, Takeda, Mitsuhiro, Aida
openaire   +2 more sources

Stem cell regulation in the Arabidopsis shoot apical meristem

Current Opinion in Plant Biology, 2005
The aerial structure of higher plants is generated dynamically throughout the life cycle through the activity of stem cells that are located at the growing shoot tip, the apical meristem. The stem cells continuously divide to renew themselves and provide cells for leaf, stem and flower formation.
Leor, Williams, Jennifer C, Fletcher
openaire   +2 more sources

Cell Lineage Dynamics in Stratified Shoot Apical Meristems

Journal of Theoretical Biology, 2002
We devise a stochastic and spatially explicit model for the dynamics of the initials cells in a stratified shoot apical meristem (SAM). The meristem is composed of three layers with seven initials per layer. We investigate the probability and number of divisions for a mutant lineage to either reach fixation or becoming purged through selection or drift.
Mario, Pineda-Krch, Kari, Lehtila
openaire   +2 more sources

Embryonic shoot apical meristem formation in higher plants

Journal of Plant Research, 2002
The shoot apical meristem (SAM) is essential for organ formation in higher plants. How the SAM is formed during plant development is poorly understood, however. In this review, we focus on several recent studies that provide new insights into the mechanism of SAM formation during embryogenesis.
Shinobu, Takada, Masao, Tasaka
openaire   +2 more sources

Morphogenesis of the Arabidopsis Shoot Apical Meristem

2016
Phyllotaxis patterns in plants, or the arrangement of leaves and flowers radially around the shoot, have fascinated both biologists and mathematicians for centuries. The current model of this process involves the lateral transport of the hormone auxin through the first layer of cells in the shoot apical meristem via the auxin efflux carrier protein ...
openaire   +1 more source

Primary carbohydrate metabolism genes participate in heat-stress memory at the shoot apical meristem of Arabidopsis thaliana

Molecular Plant, 2021
Justyna Jadwiga Olas, Federico Apelt, Maria Grazia Annunziata   +2 more
exaly  

Changes at the Shoot Apical Meristem in Response to Floral Induction

2007
AbstractThis chapter considers the changes that occur at the shoot apical meristem once the decision to flower has been taken by the plant. These changes involve the expression of a succession of floral meristem identity genes, which convert the meristem to the reproductive state.
openaire   +1 more source