tuber


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tuber

 [too´ber]
1. a swelling or protuberance; see also tubercle and tuberosity.
2. the essential lesion of tuberous sclerosis, a pale, firm, nodular glial hamartomatous brain lesion that sometimes becomes calcified; it develops predominantly in the cerebral hemispheres, cerebellum, medulla, and spinal cord.
tuber cine´reum an area of the undersurface of the forebrain to which the stalk of the pituitary gland is attached.

tu·ber

, pl.

tu·ber·a

(tū'bĕr, too'ber-ă),
1. A localized swelling; a knob.
2. A short, fleshy, thick, underground stem of plants, such as the potato.
[L. protuberance, swelling]

tuber

/tu·ber/ (too´ber) pl. tu´bera, tubers   [L.]
1. a swelling or protuberance.
2. the essential lesion of tuberous sclerosis, presenting as a pale, firm, nodular, phakomalike glial hamartomatous brain lesion.

tuber cine´reum  a layer of gray matter forming part of the floor of the third ventricle, to which the infundibulum of the hypothalamus is attached.

tuber

[t(y)o̅o̅′bər]
a knoblike localized swelling.

tuber

An enlarged tip of a rhizome or a fleshy outgrowth, which stores nutrients.

Edible tubers
Stem tubers (potato); tuberous roots (sweet potato, cassava, yam, dahlia).

tu·ber

, pl. tubera (tū'bĕr, -ă)
1. A localized swelling; a knob.
2. A short, fleshy, thick, underground stem of plants, such as the potato.
[L. protuberance, swelling]

tuber

an enlarged underground root or stem containing PARENCHYMA cells packed with STARCH for overwintering. The best known example is the stem tuber of potato which has buds in the axils of tiny leaves (forming the potato ‘eyes’). Root tubers often have a finger-like branched structure, as in the lesser celandine, Ranunculus ficaria.

tuber

1. a swelling or protuberance, especially on a bone.
2. a short, thick, fleshy, underground stem carrying a number of buds each capable of growing into a new plant, e.g. potato. A storage phase of plant growth.

tuber calcaneus, tuber calcis
the point of the hock that serves as the attachment for the gastrocnemius tendon.
tuber cinereum
a mound on the undersurface of the forebrain to which the stalk of the pituitary gland is attached.
tuber coxae, coxal tuber
the point of the hip; the most lateral point of the ilium.
facial tuber
the anterior point on the facial crest, just above the third and fourth cheek teeth of the horse. A homologous point in the cow.
tuber ischii
the caudal point on the floor of the pubis, the tuber ischium or pin bone.
sacral tuber
the most medial prominence on the ilium; above the sacroiliac joint.
tuber scapulae
supraglenoid tubercle.
References in periodicals archive ?
Data were collected on number of tuber per stand, tuber yield per stand and hectare, average tuber size, multiplication ratio and % tuber that were less than 0.
They concluded that drought stress before tuber formation probably enhanced the future delivery of carbon, water, and plant nutrients to tubers instead of to sterns or leaves, and that this response increased under elevated carbon dioxide levels.
They concluded that drought stress before tuber formation probably enhanced the future delivery of carbon, water, and plant nutrients to the tubers instead of to the stems or leaves--and that this response increased under elevated C[O.
Affected plants develop brown spots, especially around the edges of the leaves, the stems turn brown and potatoes develop scabby cankers that lead to brown patches inside the tubers which soon rot.
Aqronomical N efficiency = tuber yield at N applied-plots - control (tuber yield at no - N applied plots) / applied fertilizer level
When the dark green shoots appear on the tubers in four to six weeks, plant them in well-prepared ground, enhanced with compost or well-rotted manure and within a few months you'll have crops of delicious spuds to last you throughout summer and well into autumn.
Co-author Andri Kessler, Cornell assistant professor of ecology and evolutionary biology believes that compounds from the insect's saliva somehow increases the rate of the plant's photosynthesis to compensate for the tubers lost to the caterpillar damage.
In folk medicinal practices of Bangladesh, the whole plant, leaf, tuber root, seed, and stem is used for various purposes including energy stimulation, increased bile secretion, liver cirrhosis, lunacy, sexual diseases, whitish discharge in urine of men, constipation, menstruation problems, leucorrhea, edema, cancer, leprosy, to increase lactation in nursing mothers, skin disorders, weakness of heart, and gastric pain.
Lenticel rot is characterized by dry and sunken discolored lesions surrounding potato tuber lenticels.
In truffle culture, the terms 'burn' or 'brule' are used to describe spots where truffles grow and refer to the phytotoxic capacity of the Tuber mycelia and to their ability to create clearings in the vegetation where the mycelia bear fruit (Papa 1992).
Nathaniel Dominy, an anthropologist at the University of California, Santa Cruz who coauthored the report, says that the findings add to other evidence that starch from tubers, corms, and bulbs provided crucial calories in the early human diet.
The earwigfly, Merope tuber Newman, is 1 of only 2 extant members of the family Meropeidae worldwide (Kaltenbach 1978; Byers 2005).