Crenation (from modern Latin crenatus meaning "scalloped or notched", from popular Latin crena meaning "notch")[1] in botany and zoology, describes an object's shape, especially a leaf or shell, as being round-toothed or having a scalloped edge.[1]
The descriptor can apply to objects of different types, including cells, where one mechanism of crenation is the contraction of a cell after exposure to a hypertonic solution, due to the loss of water through osmosis.[2]: 229–230 In a hypertonic environment, the cell has a lower concentration of solutes than the surrounding extracellular fluid, and water diffuses out of the cell by osmosis, causing the cytoplasm to decrease in volume. As a result, the cell shrinks and the cell membrane develops abnormal notchings. Pickling cucumbers and salt-curing of meat are two practical applications of crenation.[2]: 229
Plasmolysis is the term which describes plant cells when the cytoplasm shrinks from the cell wall in a hypertonic environment. In plasmolysis, the cell wall stays intact, but the plasma membrane shrinks and the chloroplasts of the plant cell concentrate in the center of the cell.
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Crenation (from modern Latin crenatus meaning "scalloped or notched", from popular Latin crena meaning "notch") in botany and zoology, describes an object's...
build-up of water and the otherwise subsequent lysis. Cell disruption Crenation Lysis Osmotic pressure Plasmolysis Water intoxication Alberts, Bruce (2014)...
the tongue against the adjacent teeth. The oral mucosa in the area of crenation is usually of normal color, but there may be erythema (redness) if exposed...
water in the plant. The equivalent process in animal cells is called crenation. The liquid content of the cell leaks out due to exosmosis. The cell collapses...
other gap cut out often to receive another element or fixing; see also crenation. The modern French word for crenel is créneau, also used to describe a...
ovate, glabrous 4–8 cm long and 6 cm wide, with edged, glossy and toothed crenation. Grown as a groundcover, the flowers of the plant are red, pink or white...
schistocytes. Acanthocytes have coarse, irregularly spaced, variably sized crenations, resembling many-pointed stars. They are seen on blood films in abetalipoproteinemia...
ascorbic acid. Urine with a high specific gravity can also cause leukocyte crenation, which can impede the liberation of the esterases. The detection limit...
concentrated urine they may shrivel and develop a spiky shape, which is termed crenation, while in dilute urine they can swell and lose their hemoglobin, creating...
involves the tongue, there is an erythematous enlargement with furrows, crenation and loss of the normal dorsal tongue coating. Plasma cell gingivitis and...
podaria short and decurrent, and obtuse. The epithet crenatus denotes crenations (wavy-toothed) and refers to the crenated stem margins. The subspecies...
base, repand-crenulate (often with minute glands in the sinuses of the crenations at the tips of the nerves), 5-nerved, coriaceous, often sublustrous. Peduncles...
the plant. It usually flowers in August. The stems are notched, showing crenation, and are a yellow-brown color. The stems are flattened when the plant...
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