stroma


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stroma

 [stro´mah] (Gr.)
the tissue forming the ground substance, framework, or matrix of an organ, as opposed to the functioning part or parenchyma. adj., adj stro´mal, stromat´ic.

stro·ma

, pl.

stro·ma·ta

(strō'mă, strō'mă-tă), Do not confuse this word with stoma or struma.
1. The framework, usually of connective tissue, of an organ, gland, or other structure, as distinguished from the parenchyma or specific substance of the part.
2. Aqueous phase of chloroplasts, that is, chloroplast matrix.
3. Archaic term for mitochondrial matrix.
4. IN fungi, a mass of interwoven hyphae; it is here that fruiting bodies develop.
[G. strōma, bed]

stroma

(strō′mə)
n. pl. stro·mata (-mə-tə)
1. The connective tissue framework of an organ, gland, or other structure, as distinguished from the tissues performing the special function of the organ or part.
2. The spongy, colorless framework of a red blood cell or other cell.
3. The colorless semiliquid material inside a chloroplast, in which the thylakoid membranes are embedded and where the dark reactions of photosynthesis occur.
4. A dense mass of fungal hyphae on or in which reproductive structures develop.

stro′mal adj.
stro·mat′ic (-măt′ĭk) adj.

stro·ma

, pl. stromata (strō'mă, -tă)
1. The framework, usually of connective tissue, of an organ, gland, or other structure, as distinguished from the parenchyma or functional parts of an organ.
2. Aqueous phase of chloroplasts, i.e., chloroplast matrix.
[G. strōma, bed]

stroma

The tissue forming the framework of an organ. Compare PARENCHYMA.

stroma

see CHLOROPLAST.

Stroma

A term used to describe the supportive tissue surrounding a particular structure. An example is that tissue which surrounds and supports the actually functional lung tissue.
Mentioned in: Pneumonia

stro·ma

, pl. stromata (strō'mă, -tă)
Framework, usually of connective tissue, of an organ, gland, or other structure.
[G. strōma, bed]
References in periodicals archive ?
However, in pancreatic cancer, SPARC overexpression in the stroma was significantly associated with poor OS as well as DFS, and in colorectal cancer, SPARC overexpression was associated with better DFS, which indicated a marked tumor type heterogeneity in stroma-derived SPARC.
This includes research from the University of the Highlands and Islands, stories from the local RNLI Wick lifeboat station, paintings, photographs and even a recording of the last baby who was born on Stroma 60 years ago.
The host's response, desmoplasia or reactive stroma, is biologically critical to PCa.
After the migration of melanoblasts, they turn to melanocytes in the prostatic stroma. The second theory suggests that Schwann cells and endoneural cells are transformed into melanocytes (5, 6).
The amount of stroma was quantified after using scanner lens to select the most invasive part of the tumour and then using the 10 x objective to score.
The component of flavonoids, tannin, phenolic and alkaloid work together as antibacterial at multiple site of bacteria and infected tissue make improvement of middle ear stroma.
Adenofibroma resembles MA except that the stroma of adenofibroma lacks nuclear pleomorphism and mitotic activity found in adenosarcoma.
Stroma was lying outside the basement membrane, consisted of stromal cells, connective tissue fibers and numerous blood vessels (fig-1).
The Vv of stroma in PCa (34%) was numerically higher than in hyperplasia (20%), but there was no statistically significant difference in the degree of freedom (p < 0.05).
Sarcomas and related proliferative lesions of specialized prostatic stroma: a clinicopathologic study of 22 cases.
Compared with the frequency of macrophages in hens with normal ovaries (6.77 [+ or -] 1.58 macrophages in a 20 [mm.sup.2] area of tissue), the frequency of macrophages was significantly greater (P <0.0001) in the stroma of PCOC at the early stage (17.33 [+ or -] 2.26 macrophages in a 20 [mm.sup.2] area of tissue) and increased further in PCOC at the late stage (24.24 [+ or -] 2.50 macrophages in a 20 [mm.sup.2] area of tissue) (Figure 4(d)).