chlorophyll

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chlorophyll

 [klor´o-fil]
any of a group of green pigments, containing a magnesium-porphyrin complex, that are involved in oxygen-producing photosynthesis. Preparations of water-soluble chlorophyll derivatives are sometimes applied topically for deodorization purposes. They may also be administered orally to deodorize ulcerative lesions as well as urine and feces in colostomy, ileostomy, or incontinence.

chlor·o·phyll

(klōr'ō-fil),
The magnesium complex of the phorbin derivative found in photosynthetic organisms; light-absorbing green plant pigments that, in living plants, convert light energy into oxidizing and reducing power, thus fixing CO2 and evolving O2; the naturally occurring forms are chlorophyll a, b, c, and d.
See also: phorbin.

chlorophyll

(klôr′ə-fĭl)
n.
Any of a group of green pigments that capture light energy used as the energy source in photosynthesis and that are found in the chloroplasts of plants and other photosynthetic organisms such as cyanobacteria, especially:
a. A waxy blue-black microcrystalline green-plant pigment, C55H72MgN4O5, with a characteristic blue-green alcohol solution. Also called chlorophyll a.
b. A similar green-plant pigment, C55H70MgN4O6, having a brilliant green alcohol solution. Also called chlorophyll b.

chlo′ro·phyl′lous adj.

chlorophyll

Biology
The green plant pigment pivotal in photosynthesis, the manufacture of carbohydrates from CO2 and H2O.

Fringe nutrition
While chlorophyll resembles haemoglobin chemically, it has no role in human metabolism; there is, therefore, no basis for using chlorophyll to treat allergies, anaemia, arthritis, colitis, coughs, hypertension, infections, ulcers, and many other conditions, as has been recommended by some alternative medical practitioners.

chlor·o·phyll

(klōr'ō-fil)
A complex of light-absorbing green pigments that, in living plants, convert light energy into oxidizing and reducing power, thus fixing CO2 and evolving O2; the naturally occurring forms are chlorophyll a, b, c, and d.

chlorophyll

a group of pigments giving a green coloration to most plants, which is found in any part of the plant that is exposed to sunlight. The pigments are usually contained in cell organelles called CHLOROPLASTS. Chlorophyll is a PORPHYRIN containing magnesium and exists in several forms which have different side chains. Typically, chlorophylls a (blue-green) and b (yellow-green) are found in higher plants; chlorophylls c and d are found in algae. Chlorophyll has the vital function of absorbing light energy for PHOTOSYNTHESIS. see ACTION SPECTRUM. A related pigment, BACTERIOCHLOROPHYLL, containing manganese instead of magnesium, is found in photosynthetic bacteria.

chlor·o·phyll

(klōr'ō-fil)
Light-absorbing green plant pigments that, in living plants, convert light energy into oxidizing and reducing power, thus fixing CO2 and evolving O2.
References in periodicals archive ?
The fruits exposed to ethylene during 96 h, and after the treatment already presented tota chlorophyl contents similar to the minimum presented by the fruits exposed during 48 h, reached only 36.6 h after the end of the exposure (Figure 3CD).
Table 1 Impacts of reduced biomass on trophic dynamics 1997- 1998-1999 1999- 1998 2000 Mean chlorophyl a (mg [m.sup.-3]) in the Western Ross Sea (See Fig.
The "magic" ingredient is chlorophyl, the green pigment in leaves.
But things turn tropical with the appearance of Poison Ivy - a femme fatale with chlorophyl for skin and a kiss that kills.
According to Veronique Debessac, they will be ice cream versions of products now marketed by Kraft - sticks of chlorophyl chewing gum, Malabar bubble gum, and Regaldad.
Pearson's correlation analysis among height (HGT), chlorophyl content (SPAD values), specific leaf area (SLA), capitulum diameter (DMT), and capitulum dry mass at 60 (DMC60) and 81 (DMC81) days after planting of sunflower 'Comum Rajado' plants treated with trinexapac-ethyl, maleic hidrazide, gibberellic acid and water (control) HGT SPAD SLA HGT -- -63.96 *** 53.25 *** SPAD -- -41.40 *** SLA -- DMT DMC60 DMC81 DMT DMC60 DMC81 HGT 72.73 *** 46.35 * 53.01 ** SPAD -31.89 (ns) -23.98 (ns) -14.55 (ns) SLA 48.28 * 22.09 (ns) 33.47 (ns) DMT -- 75.25 *** 76.67 *** DMC60 -- 44.12 * DMC81 -- ***, **, * significant at 0.1, 1 and 5%, respectively; ns = non-significant
About 10% of CADL 98 plants segregate for one of the following traits among their self progeny: albinos, chlorophyl deficients, seedling lethals, leaf, stem, and growth habit variants, cauliflower head-simple leaf, cream flower color, and restitution pollen and eggs.
Herbicides have been known to distrupt the enzyme systems thus affecting the entire physiology (including respiration, chlorophyl formation and photosynthesis) of the living system (Akobundu 1987).