Results 11 to 20 of about 43,955 (204)

Organogenesis at the Shoot Apical Meristem [PDF]

open access: yesPlants, 2018
Lateral organ initiation at the shoot apical meristem involves complex changes in growth rates and directions, ultimately leading to the formation of leaves, stems and flowers.
Jan Traas
doaj   +5 more sources

Auxin at the Shoot Apical Meristem [PDF]

open access: yesCold Spring Harbor Perspectives in Biology, 2010
Plants continuously generate new tissues and organs through the activity of populations of undifferentiated stem cells, called meristems. Here, we discuss the so-called shoot apical meristem (SAM), which generates all the aerial parts of the plant. It has been known for many years that auxin plays a central role in the functioning of this meristem ...
Vernoux, Teva   +2 more
openaire   +4 more sources

Control of proliferation in the haploid meristem by CLE peptide signaling in Marchantia polymorpha. [PDF]

open access: yesPLoS Genetics, 2019
The homeostasis of meristems in flowering plants is maintained by cell-to-cell communication via CLE (CLAVATA3/EMBRYO SURROUNDING REGION-related) peptide hormones.
Yuki Hirakawa   +9 more
doaj   +1 more source

Vegetative Apical Meristems. [PDF]

open access: yesThe Plant Cell, 1992
A fascinating aspect of plant biology is that a small cell group is the origin of shoot systems as varied as redwood trees or Arabidopsis. The first recognition that shoot systems originate from small groups of cells was by Kaspar Wolff in 1759 (cited in Cutter, 1965). These small groups of cells are known as shoot apical meristems.
openaire   +2 more sources

Comparative Ontogeny of Hermaphrodite and Pistillate Florets in Helianthus annuus L. (Asteraceae)

open access: yesNotulae Scientia Biologicae, 2012
The inflorescence of Helianthus annuus L. has two types of flowers (or florets) on a single capitulum; central hermaphrodite disc florets and peripheral pistillate ray florets.
Aslıhan ÇETİNBAŞ, Meral ÜNAL
doaj   +1 more source

Auxin Metabolism in the Root Apical Meristem [PDF]

open access: yesPlant 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

Investigating the Shape of the Shoot Apical Meristem in Bamboo Using a Superellipse Equation

open access: yesBio-Protocol, 2017
The shoot apical meristem is the origin of bamboo wood. Its structure and morphology are important for maintaining the normal development of bamboo wood. However, the traditional method to describe the morphology of the shoot apical meristem in bamboo or
Qiang Wei, Peijian Shi
doaj   +1 more source

Pattern formation during de novo assembly of the Arabidopsis shoot meristem [PDF]

open access: yes, 2007
Most multicellular organisms have a capacity to regenerate tissue after wounding. Few, however, have the ability to regenerate an entire new body from adult tissue. Induction of new shoot meristems from cultured root explants is a widely used, but poorly
Das, Pradeep   +5 more
core   +2 more sources

CYTOGENETIC CHANGES IN CELLS OF THE APICAL MERISTEM OF GREEN PLANTING OF THE CITY DEPENDING ON THE LEVEL OF ANTHROPOGENIC LOAD

open access: yesЮг России: экология, развитие, 2017
Aim. The aim of the research is to study the cytogenetic disorders in the cells of apical meristem of the sprouts of urban green plantations of the small-leaved linden (Tilia cordata L.) and rattlertree (Populus alba L.) growing under different ...
Galina G. Ladnova   +3 more
doaj   +1 more source

Control of Arabidopsis apical-basal embryo polarity by antagonistic transcription factors. [PDF]

open access: yes, 2010
Plants, similarly to animals, form polarized axes during embryogenesis on which cell differentiation and organ patterning programs are orchestrated. During Arabidopsis embryogenesis, establishment of the shoot and root stem cell populations occurs at ...
Long, Jeff A, Smith, Zachery R
core   +2 more sources

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