citation needed] There are three types of meristematic tissues: apical (at the tips), intercalary or basal (in the middle), and lateral (at the sides). (wikipedia.org)
These secondary meristems are also known as lateral meristems because they are involved in lateral growth. (wikipedia.org)
Indeterminate2
Apical meristems are the completely undifferentiated (indeterminate) meristems in a plant. (wikipedia.org)
Leaves thus have determinate growth, whereas the apical meristem, with its cells that continue to divide indefinitely, has indeterminate growth. (cliffsnotes.com)
Primordia3
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)
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 elongating primordia arch over and protect the apical meristem of the shoot. (cliffsnotes.com)
Stem cells2
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)
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)
Divide1
Differentiated plant cells generally cannot divide or produce cells of a different type. (wikipedia.org)
Shoot4
citation needed] Shoot apical meristems are the source of all above-ground organs, such as leaves and flowers. (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)
The formation of new meristems is essential for the plastic expansion of the highly branched shoot and root systems. (researchgate.net)
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)
Types1
The primary meristems in turn produce the two secondary meristem types. (wikipedia.org)
Cells6
Cells in the meristem can develop into all the other tissues and organs that occur in plants. (wikipedia.org)
At the meristem summit, there is a small group of slowly dividing cells, which is commonly called the central zone. (wikipedia.org)
Cells of this zone have a stem cell function and are essential for meristem maintenance. (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)
Sperm cells can swim only a short distance but must reach an egg on another plant - a difficult proposition for fragile cells produced on a tree top. (blogspot.com)
Sperm cells produced on a large gametophyte tree would be left literally "high and dry. (blogspot.com)
Palm3
The apical meristem or "palm heart" produces new fronds and extensive feeding damage to this area can kill the palm as it is unable to continue growing. (ucr.edu)
C) Palm with a "halo" of fronds that has resulted from SAPW feeding in the apical meristem. (ucr.edu)
Regardless of habit, there is typically only one growing point or apical meristem per palm stem. (ashs.org)
In bryophytes, the main plants - the green mats that spread and live for many years - are the gamete-producing generation, just like their algal ancestors. (blogspot.com)
Tree ferns are vascular plants, and their spore-producing generation is the main plant that can get quite tall. (blogspot.com)
Well something like that did happen in the ancestors of the vascular plants, and their spore-producing generation became the dominant conspicuous one, inventing lignin and xylem as a means to become ever taller. (blogspot.com)
iii) The plants raised from the hybrid seeds show segregation of characters and do not maintain hybrid character necessitating the need to produce hybrid seeds every year. (icsesolutions.com)
Plant8
The apical meristems are layered where the number of layers varies according to plant type. (wikipedia.org)
The leafy portion of the plant produces gametes, and a fertilized egg then develops into the spore-producing plant, which is just the stalk and sporangium. (blogspot.com)
There are two alternate forms of every sexually-reproducing plant, one that produces spores and one that produces gametes. (blogspot.com)
The spore-producing plant of a moss, its sporophyte, is a small, ephemeral structure that remains attached to the parent plant - just a slender stalk and a single sporangium. (blogspot.com)
It gets as tall as it can without toppling over or placing excessive demands on the gamete-producing plant - a few centimeters at most. (blogspot.com)
But suppose that tiny spore-producing plant of the moss were to sprout its own roots and start growing on its own. (blogspot.com)
Plant aerial development relies on meristem activity which ensures main body plant axis development during plant life. (researchgate.net)
Growth1
The proliferation and growth rates at the meristem summit usually differ considerably from those at the periphery. (wikipedia.org)
Leaves1
Orchids in temperate climates produce neither pseudobulbs nor succulent stems instead their storage solutions are underground tubers, corms or rhizomes which concentrate nutrients and sugars from the previous season as the leaves die back in late summer before entering winter dormancy. (irishorchidsociety.org)
Meristematic2
citation needed] There are three types of meristematic tissues: apical (at the tips), intercalary or basal (in the middle), and lateral (at the sides). (wikipedia.org)
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)
Intercalary2
Macrocystis belongs to the Order Laminariales, which includes those Phaeophyta growing by means of an intercalary meristem as well as a superficial meristoderm and has oogamous reproduction by microscopic dioecious gametophytes. (fao.org)
Macrocystis above the holdfast is differentiated into a blade and stipe, with the blade being split forming several intercalary meristems during early sporophytic development. (fao.org)
Basal2
Lower portions of the basal stipe system also produce root-like haptera that grow downwards, wrapping around and forming attachment to irregularities in solid substrata. (fao.org)
The outer blade of the two produced by the splitting becomes an apical frond initial while the inner portion remains as a basal meristem that will give rise to yet further new frond and basal meristem initials. (fao.org)
Distinct2
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)
Further stipe growth and splitting produces an apical scimitar-shaped blade distinct from the remaining blades. (fao.org)