There are two types of apical meristem tissue: shoot apical meristem (SAM), which gives rise to organs like the leaves and flowers, and root apical meristem (RAM), which provides the meristematic cells for future root growth. (wikipedia.org)
One single maize root apical meristem - 17500 new cells per hour. (phdnest.com)
Apical15
A larger vegetative shoot apical meristem (SAM) often produces more branching inflorescences. (nature.com)
Apical meristems are the completely undifferentiated (indeterminate) meristems in a plant. (wikipedia.org)
The apical meristems are layered where the number of layers varies according to plant type. (wikipedia.org)
Apical meristems are found in two locations: the root and the stem. (wikipedia.org)
Some Arctic plants have an apical meristem in the lower/middle parts of the plant. (wikipedia.org)
citation needed] Shoot apical meristems are the source of all above-ground organs, such as leaves and flowers. (wikipedia.org)
Cells at the shoot apical meristem summit serve as stem cells to the surrounding peripheral region, where they proliferate rapidly and are incorporated into differentiating leaf or flower primordia. (wikipedia.org)
The shoot apical meristem is the site of most of the embryogenesis in flowering plants. (wikipedia.org)
One of these indications might be the loss of apical dominance and the release of otherwise dormant cells to develop as auxiliary shoot meristems, in some species in axils of primordia as close as two or three away from the apical dome. (wikipedia.org)
The shoot apical meristem consists of four distinct cell groups: Stem cells The immediate daughter cells of the stem cells A subjacent organizing center Founder cells for organ initiation in surrounding regions These four distinct zones are maintained by a complex signalling pathway. (wikipedia.org)
In Arabidopsis thaliana, 3 interacting CLAVATA genes are required to regulate the size of the stem cell reservoir in the shoot apical meristem by controlling the rate of cell division. (wikipedia.org)
While the shoot apical meristem (SAM) formed in the embryo only contributes to the main stem, the branched structure observed in many plants relies on axillary meristems (AMs) formed post-embryonically. (researchgate.net)
Root apical & shoot apical meristem are responsible for ten growth and contribute to the elongation of plants. (phdnest.com)
The epicotyl elongates after embryo growth into the axis (the stem) that bears leaves from its tip, which contain the actively dividing cells of the shoot called apical meristem. (ncertmcq.com)
Leaves are lateral determinate structures formed in a predictable sequence (phyllotaxy) on the flanks of an indeterminate shoot apical meristem. (cfsscloud.hk)
Meristematic1
STM3 is expressed in both vegetative and reproductive meristematic tissues and in leaf primordia and leaves, indicative of its function in flowering time and inflorescence-branching development. (nature.com)
Lateral2
These secondary meristems are also known as lateral meristems because they are involved in lateral growth. (wikipedia.org)
Lateral meristem (dicot & gymnosperm) appears in later life, cause an increase in girth in which they are active - 20 growths. (phdnest.com)
Reproductive1
a) Vegetative bud (b) Floral or Reproductive bud. (ncertmcq.com)
Highly branched1
The formation of new meristems is essential for the plastic expansion of the highly branched shoot and root systems. (researchgate.net)
Secondary1
The primary meristems in turn produce the two secondary meristem types. (wikipedia.org)
Embryogenesis1
Meristems can be formed either during embryogenesis or during the plant's life such as, for instance, axillary meristems. (researchgate.net)
Floral3
In addition, FALSIFLORA ( FA ), the tomato ortholog LEAFY , controls flowering time and floral meristem identity. (nature.com)
LEAFY plant-specific transcription factors, which are key regulators of flower meristem identity and floral patterning, also contribute to meristem activity. (researchgate.net)
Stem bears vegetative bud for vegetative growth of the plant, and floral buds for reproduction, and ends in a terminal bud. (ncertmcq.com)
Tissues1
Cells in the meristem can develop into all the other tissues and organs that occur in plants. (wikipedia.org)
Stem4
Cells of this zone have a stem cell function and are essential for meristem maintenance. (wikipedia.org)
In plants, stem cells are embedded in structures called meristems. (researchgate.net)
While the regulation of the stem cell population in an established meristem is well described, how it is initiated in newly formed meristems is less well underst. (researchgate.net)
Adventitious buds function as propagules which are produced on the stem as tuberous structures. (ncertmcq.com)
Behavior1
While development may include changes in a variety of aspects of an organism, from structure to physiology to behavior, we will focus here on how development produces and changes the structure and form of an organism throughout its lifetime. (geneseo.edu)
Divide3
Differentiated plant cells generally cannot divide or produce cells of a different type. (wikipedia.org)
SAM and RAM cells divide rapidly and are considered indeterminate, in that they do not possess any defined end status. (wikipedia.org)
Retain capacity for unlimited growth due to meristems (divide & self-perpetuate), lose the capacity to divide, make plant body. (phdnest.com)
When bulbils detach from parent plant and fall on the ground, they germinate into new plants and serve as a means of vegetative propagation. (ncertmcq.com)
Growth4
The jointless ( j ) mutant produces indeterminate inflorescences that revert to vegetative growth after the production of two or three flowers 16 , 17 . (nature.com)
The proliferation and growth rates at the meristem summit usually differ considerably from those at the periphery. (wikipedia.org)
The open form of Growth- New cells adds to the plant body by activity of meristem. (phdnest.com)
The most valuable growth occurs during the vegetative phase and it continues unless obstructed by environmental change. (phdnest.com)
Axis2
Distinguished from the raceme-type inflorescences of Arabidopsis and panicle-type inflorescences of rice, tomato has a cyme-type inflorescence lacking a main axis, which initiates from a sympodial inflorescencemeristem (SIM). (nature.com)
Plant aerial development relies on meristem activity which ensures main body plant axis development during plant life. (researchgate.net)
Cells2
At the meristem summit, there is a small group of slowly dividing cells, which is commonly called the central zone. (wikipedia.org)
The corpus and tunica play a critical part of the plant physical appearance as all plant cells are formed from the meristems. (wikipedia.org)
Cell1
For most familiar organisms the starting point is a special cell that has the ability to proliferate, develop a complex structure, and grow to produce an 'end point', a specific form that characterizes that particular creature. (geneseo.edu)
Plant2
This is the final stage where the plant produces flowers, fruits and seeds. (phdnest.com)
r- measure of ability of plant to produce new plant material - efficiency index. (phdnest.com)
Conditions1
It is thought that this kind of meristem evolved because it is advantageous in Arctic conditions. (wikipedia.org)
Food1
They are capable of capturing energy via the green pigment ( chlorophyll ) inside the chloroplast, and using carbon dioxide and water to produce sugars as food and oxygen as by-product. (biologyonline.com)
Flower2
Cells at the shoot apical meristem summit serve as stem cells to the surrounding peripheral region, where they proliferate rapidly and are incorporated into differentiating leaf or flower primordia. (wikipedia.org)
Particularly, master transcription factors that regulate meristem, flower, and fruit development, and biotic and abiotic stress-responsive genes were highly upregulated, whereas the expression of genes related to photosynthesis strongly decreased in the early stage of the gall development. (frontiersin.org)