Definitions
American Heritage® Dictionary of the English Language, Fourth Edition
- n. The innermost layer of the cortex that forms a sheath around the vascular tissue of roots and some stems.
Century Dictionary and Cyclopedia
- n. In botany, the layer of modified parenchyma-cells which are united to form the sheath surrounding a fibrovascular bundle.
Wiktionary
- n. botany In a plant stem or root, a cylinder of cells the separates the outer cortex from the central core. The endodermis controls flow of water and minerals within the plant. In most plants, this tissue is restricted to the roots.
- n. zoology The deepest layer of the skin.
GNU Webster's 1913
- n. (Bot.) A layer of cells forming a kind of cuticle inside of the proper cortical layer, or surrounding an individual fibrovascular bundle.
Etymologies
- From endo- (“within”) + dermis (“skin”) (Wiktionary)
- endo- + (epi)dermis. (American Heritage® Dictionary of the English Language, Fourth Edition)
Examples
“In the forms in which it is most highly developed (Polytrichaceae) this tissue, which is comparable with the xylem of higher plants, is surrounded by a zone of tissue physiologically comparable to phloem, and in the rhizome may be limited by an endodermis.”
Encyclopaedia Britannica, 11th Edition, Volume 4, Part 3 "Brescia" to "Bulgaria"
“Grafted walnuts show callus growth from the cambium, and also from the pith of stems and the endodermis of the root.”
“Pericycle the outermost zone of cells of the stele immediately within the endodermis, 32.”
“The innermost layer of cells of the cortex is called the = endodermis = and it becomes conspicuous on account of the thickening in the lateral and inner walls of the cells of this layer.”
“The researchers discovered that a protein molecule called SHORTROOT moves from the vascular cylinder to the endodermis, an inner skin within the root.”
“These microRNAs seem to move out of the endodermis as signaling molecules.”
“Vertical bars in (L and M) indicate enlarged region shown in (P and Q). pd, protoderm; pc, procambium; col, columella initials; QC, quiescent center; v, vascular tissue; ep, epidermis; c, cortex; en, endodermis.”
“In bent cotyledon embryos the expression was confined to the QC and endodermis/cortex stem cells of the embryonic root.”
“The expression pattern changes in two regions: (1) lateral root founder cells and initials and (2) around the root tip where expression is detected in epidermis, cortex, endodermis, and the root cap.”
“In adult embryos expression was detected in the QC and future endodermis of the embryonic roots and in the hypocotyls.”
Lists
These user-created lists contain the word ‘endodermis’.
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BIOL - the brain
ruptured blood ve..., clot, pressure on a blo..., tumor, brain region, comprehension of ..., production of mea..., autonomic nervous..., conservation of t..., catecholamine, arousal, regulation of sleep and 564 more...
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A Serving of Random Palavery
This is an eclectic and somewhat random list of words that catch and hold my attention. They may be archaic or disused, dialectal, jargon words from my fields of academic speciality (linguistics, ...
scraffle, infelicitous, misprize, defrock, caitiff, gimcrack, innerve, abjure, cyberchondriac, indurate, hexagynous, pistils and 146 more...
Tweets
Looking for tweets for endodermis.
hernesheir (n): (plant anatomy) a thin layer of parenchyma cells in plant roots, just outside the vascular cylinder or stele, that regulates water flow. The endodermis consists of a single-celled ring which forms a selective barrier between the outer cortex and the inner pericycle tissue of the root. The endodermis regulates the molecules that can pass through cell walls into the tissues of the plant. Jan 4, 2009