Matches in DBpedia 2016-04 for { <http://dbpedia.org/resource/Meristem> ?p ?o }
- Meristem abstract "A meristem is the tissue in most plants containing undifferentiated cells (meristematic cells), found in zones of the plant where growth can take place.Meristematic cells give rise to various organs of the plant and keep the plant growing. The shoot apical meristem (SAM) gives rise to organs like the leaves and flowers, while the root apical meristem (RAM) provides the meristematic cells for the future root growth. SAM and RAM cells divide rapidly and are considered indeterminate, in that they do not possess any defined end status. In that sense, the meristematic cells are frequently compared to the stem cells in animals, which have an analogous behavior and function.The term meristem was first used in 1858 by Karl Wilhelm von Nägeli (1817–1891) in his book Beiträge zur Wissenschaftlichen Botanik. It is derived from the Greek word merizein (μερίζειν), meaning to divide, in recognition of its inherent function.In general, differentiated plant cells cannot divide or produce cells of a different type. Therefore, cell division in the meristem is required to provide new cells for expansion and differentiation of tissues and initiation of new organs, providing the basic structure of the plant body.Meristematic cells are incompletely or not at all differentiated, and are capable of continued cellular division (youthful). Furthermore, the cells are small and protoplasm fills the cell completely. The vacuoles are extremely small. The cytoplasm does not contain differentiated plastids (chloroplasts or chromoplasts), although they are present in rudimentary form (proplastids). Meristematic cells are packed closely together without intercellular cavities. The cell wall is a very thin primary cell wall.Maintenance of the cells requires a balance between two antagonistic processes: organ initiation and stem cell population renewal.Apical meristems are the completely undifferentiated (indeterminate) meristems in a plant. These differentiate into three kinds of primary meristems. The primary meristems in turn produce the two secondary meristem types. These secondary meristems are also known as lateral meristems because they are involved in lateral growth.At the meristem summit, there is a small group of slowly dividing cells, which is commonly called the central zone. Cells of this zone have a stem cell function and are essential for meristem maintenance. The proliferation and growth rates at the meristem summit usually differ considerably from those at the periphery.Meristems also are induced in the roots of legumes such as soybean, Lotus japonicus, pea, and Medicago truncatula after infection with soil bacteria commonly called Rhizobium. Cells of the inner or outer cortex in the so-called \"window of nodulation\" just behind the developing root tip are induced to divide. The critical signal substance is the lipo-oligosaccharide Nod-factor, decorated with side groups to allow specificity of interaction. The Nod factor receptor proteins NFR1 and NFR5 were cloned from several legumes including Lotus japonicus, Medicago truncatula and soybean (Glycine max). Regulation of nodule meristems utilizes long distance regulation commonly called \"Autoregulation of Nodulation\" (AON). This process involves a leaf-vascular tissue located LRR receptor kinases (LjHAR1, GmNARK and MtSUNN), CLE peptide signalling, and KAPP interaction, similar to that seen in the CLV1,2,3 system. LjKLAVIER also exhibits a nodule regulation phenotype though it is not yet known how this relates to the other AON receptor kinases.".
- Meristem thumbnail Méristème_couches.png?width=300.
- Meristem wikiPageExternalLink meristemania.org.
- Meristem wikiPageExternalLink 6.3-4.htm.
- Meristem wikiPageID "227682".
- Meristem wikiPageLength "28596".
- Meristem wikiPageOutDegree "120".
- Meristem wikiPageRevisionID "708288340".
- Meristem wikiPageWikiLink Algae.
- Meristem wikiPageWikiLink Amino_acid.
- Meristem wikiPageWikiLink Animal.
- Meristem wikiPageWikiLink Antirrhinae.
- Meristem wikiPageWikiLink Antirrhinum.
- Meristem wikiPageWikiLink Apical_dominance.
- Meristem wikiPageWikiLink Arabidopsis_thaliana.
- Meristem wikiPageWikiLink Arborescent.
- Meristem wikiPageWikiLink Auxin.
- Meristem wikiPageWikiLink Bark.
- Meristem wikiPageWikiLink Barley.
- Meristem wikiPageWikiLink Cardamine_hirsuta.
- Meristem wikiPageWikiLink Carl_Nägeli.
- Meristem wikiPageWikiLink Category:Plant_anatomy.
- Meristem wikiPageWikiLink Category:Plant_physiology.
- Meristem wikiPageWikiLink Cell_division.
- Meristem wikiPageWikiLink Cellular_differentiation.
- Meristem wikiPageWikiLink Chloroplast.
- Meristem wikiPageWikiLink Chromoplast.
- Meristem wikiPageWikiLink Cloning.
- Meristem wikiPageWikiLink Conserved_sequence.
- Meristem wikiPageWikiLink Cork_cambium.
- Meristem wikiPageWikiLink Correlation_and_dependence.
- Meristem wikiPageWikiLink Cortex_(botany).
- Meristem wikiPageWikiLink Cytoplasm.
- Meristem wikiPageWikiLink Dicotyledon.
- Meristem wikiPageWikiLink Epidermis_(botany).
- Meristem wikiPageWikiLink Equisetum.
- Meristem wikiPageWikiLink Evolutionary_history_of_plants.
- Meristem wikiPageWikiLink File:Apical_Meristems_in_Crassula_ovata.png.
- Meristem wikiPageWikiLink Flowering_plant.
- Meristem wikiPageWikiLink GTPase.
- Meristem wikiPageWikiLink Genetic_screen.
- Meristem wikiPageWikiLink Genotype.
- Meristem wikiPageWikiLink Ground_tissue.
- Meristem wikiPageWikiLink Gymnosperm.
- Meristem wikiPageWikiLink Gynoecium.
- Meristem wikiPageWikiLink Herbaceous_plant.
- Meristem wikiPageWikiLink Homology_(chemistry).
- Meristem wikiPageWikiLink Horticulture.
- Meristem wikiPageWikiLink Innovation.
- Meristem wikiPageWikiLink Kinase.
- Meristem wikiPageWikiLink Leaf.
- Meristem wikiPageWikiLink Leafy.
- Meristem wikiPageWikiLink Leucine-rich_repeat.
- Meristem wikiPageWikiLink Ligand_(biochemistry).
- Meristem wikiPageWikiLink Lotus_japonicus.
- Meristem wikiPageWikiLink Maize.
- Meristem wikiPageWikiLink Medicago_truncatula.
- Meristem wikiPageWikiLink Mitogen-activated_protein_kinase.
- Meristem wikiPageWikiLink Mitosis.
- Meristem wikiPageWikiLink Monocotyledon.
- Meristem wikiPageWikiLink Mycorrhiza.
- Meristem wikiPageWikiLink Nod-factor.
- Meristem wikiPageWikiLink Oligosaccharide.
- Meristem wikiPageWikiLink Parenchyma.
- Meristem wikiPageWikiLink Pea.
- Meristem wikiPageWikiLink Peptide.
- Meristem wikiPageWikiLink Phenotype.
- Meristem wikiPageWikiLink Phloem.
- Meristem wikiPageWikiLink Pith.
- Meristem wikiPageWikiLink Plant.
- Meristem wikiPageWikiLink Plastid.
- Meristem wikiPageWikiLink Plastochron.
- Meristem wikiPageWikiLink Pollinator.
- Meristem wikiPageWikiLink Primordium.
- Meristem wikiPageWikiLink Protoplasm.
- Meristem wikiPageWikiLink Receptor_(biochemistry).
- Meristem wikiPageWikiLink Regulation.
- Meristem wikiPageWikiLink Rhizobium.
- Meristem wikiPageWikiLink Rice.
- Meristem wikiPageWikiLink Root_cap.
- Meristem wikiPageWikiLink Signal_transduction.
- Meristem wikiPageWikiLink Soybean.
- Meristem wikiPageWikiLink Spur.
- Meristem wikiPageWikiLink Stamen.
- Meristem wikiPageWikiLink Stem_cell.
- Meristem wikiPageWikiLink Strigolactone.
- Meristem wikiPageWikiLink Thallus.
- Meristem wikiPageWikiLink Tissue_(biology).
- Meristem wikiPageWikiLink Tomato.
- Meristem wikiPageWikiLink Transposable_element.
- Meristem wikiPageWikiLink University_of_Texas_at_Austin.
- Meristem wikiPageWikiLink Vacuole.
- Meristem wikiPageWikiLink Vascular_cambium.
- Meristem wikiPageWikiLink Vascular_plant.
- Meristem wikiPageWikiLink Vegetative_reproduction.
- Meristem wikiPageWikiLink Wood.
- Meristem wikiPageWikiLink Xylem.
- Meristem wikiPageWikiLink File:Cardamine_hirsuta.jpg.
- Meristem wikiPageWikiLink File:Linaria_spur.jpg.
- Meristem wikiPageWikiLink File:Méristème_couches.png.