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

/chlo·ro·phyll/ (klor´o-fil) any of a group of green magnesium-containing porphyrin derivatives occurring in all photosynthetic organisms; they convert light energy to reducing potential for the reduction of CO2. Preparations of water-soluble chlorophyll salts are used as deodorizers; see chlorophyllin.

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

[klôr′əfil]
Etymology: Gk, chloros + phyllon, leaf
one of several pigments that absorb light energy and participate in the production of carbohydrates in photosynthetic organisms. Chlorophylls a and b are found in plants, chlorophyll c occurs in brown algae, and chlorophyll d occurs in red algae. Chlorophyll molecules contain a porphyrin ring system that binds a central magnesium ion. See also photosynthesis.

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.

chlorophyll (klōˑ·rō·fil),

n a nontoxic plant pigment used in the treatment of pelvic inflammatory disease, to promote production of erythrocytes and hemoglobin, and to facilitate tissue regeneration. Used by plants to make energy from sunlight.
Enlarge picture
Chlorophyll.

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.

chlorophyll (klôr´ōfil),

n the pigment required for photosynthesis in plants.

chlorophyll

any of a group of green pigments, containing a magnesium-porphyrin complex, that are involved in oxygen-producing photosynthesis in plants. Preparations of water-soluble chlorophyll derivatives are applied topically for deodorization of skin lesions and to stimulate healing. It is also administered orally to deodorize ulcerative lesions and the urine and feces.
A chlorophyll metabolite, phylloerythrin, is the common photodynamic agent in pastured animals with liver damage. The phylloerythrin accumulates because its excretory pathway is the biliary system.
References in periodicals archive ?
In general, the reductions in the quantum yield of PSII can be associated with the degradation of chlorophyll (Figure 2A and 2B), since there was a decrease in the contents of chlorophyll, especially chlorophyll a, in the leaves of A.
Chlorophyll fluorescence parameters were measured on the same leaf as the measurement of photosynthetic parameters with a pulse-amplitude-modulation system (Junior-pam fluorometer, Walz-Effeltrich, Germany).
2] might cause plants to produce more mesophyll cells and chloroplasts, leading to higher chlorophyll content.
2008) attempted to estimate chlorophyll content from hyperspectral vegetation indices, which included the normalized difference vegetation index (NDVI), modified simple ratio (MSR) index and modified chlorophyll absorption ratio index (MCARI).
Chlorophyll contents were monitored with a handheld chlorophyll meter using an Atleaf chlorophyll meter ([atLEAF.
Is also established that the chlorophyll Cold restricted rate, affecting the color of the plant and slows its growth activities.
Controls, 1-MCP and/or ethylene treated plants were evaluated before and after 1-MCP and/ or ethylene treatments for leaf chlorophylls and total carotenoids contents.
Current assay establishes the cNSI for the xaraes palisade grass for nitrogen doses during the dry and rainy seasons and also the co-relationship of variables involved in the assessment of the nutritional status of nitrogen with those obtained by the chlorophyll meter.
Filter paper was placed in chilled environment in 10 ml acetone (90%) until complete extraction of chlorophyll.
The high levels of magnesium in chlorophyll build enzymes that restore sex hormones.
The aim of this study was to physiologically characterize the bromeliads Nidularium campo-alegrense Leme and Aechmea ornata Baker, as for the quantification of starch, carbohydrates, carotenoids and chlorophyll content, and density of trichomes and stomata; important physiological parameters in the analysis of plant metabolism.