(n.) Literally, leaf green; a green granular matter formed in the cells of the leaves (and other parts exposed to light) of plants, to which they owe their green color, and through which all ordinary assimilation of plant food takes place. Similar chlorophyll granules have been found in the tissues of the lower animals.
Example Sentences:
(1) Results obtained show that chlorophyll is more active than other inhibitors studied and suggest a higher surface adsorption intensity on the primary sources of the crystal surface.
(2) Upon illumination, a dark-adapted photosynthetic sample shows time-dependent changes in chlorophyll (Chl) a fluorescence yield, known as the Kautsky phenomenon or the OIDPS transient.
(3) As both chlorophyll a and b accumulate, extensive formation of grana takes place.
(4) In dark-grown cells adapting to the light in resting medium and in an X-ray-induced mutant, D(o) is proportional to the chlorophyll content of the cells.
(5) Luminescence yield, absorption spectra and molecular weight dependence of chlorophyll in methylethylketone and n-hexane on concentration was investigated.
(6) The derivative absorption spectra of adsorbed chlorophyll a have been obtained.
(7) An in vitro translation system using lysed etioplasts was developed to test if the accumulation of plastid-encoded chlorophyll a apoproteins is dependent on the de novo synthesis of chlorophyll a.
(8) Measurements of chlorophyll a fluorescence decay kinetics after the second saturating actinic flash indicated that, after formate treatment, the halftime of QA- oxidation was decreased by approximately a factor of 2, 4 and 6 in the wild type, R251S and R233Q, respectively.
(9) Highest activities in darkness have been observed at times when maximum chlorophyll formation would have occurred had the plants been exposed to light.
(10) DBcAMP* showed a positive effect on chlorophyll synthesis and growth rate at much lower concentrations compared to cAMP.
(11) One of them seems to be correlated with chlorophyll derivatives.
(12) In presence of vanadium, the chlorophyll formation was stimulated in Scenedesmus obliquus.
(13) The apparent molecular weight of the chlorophyll-protein complexes I and II are 88,000 and 28,000, respectively.
(14) This change is ascribed to the irreversible oxidation of a dimeric chlorophyll molecule which acts as electron donor to P+-680 under these conditions.
(15) The potential was found to shift to a less noble state when the system of the chlorophyll-naphthoquinone electrode was inserted into NAD solution with illumination.
(16) Analyses included measurement of chlorophyll autofluorescence and fluorescence due to uptake of fluorescein diacetate (FDA) and calcofluor white M2R (CFW).
(17) Chlorophyllase (chlorophyll chlorophyllidohydrolase, EC 3.1.1.14) activity assays that are based on the determination of this chlorophyllide fluorescence show that phosphatidylglycerol (PG), and also sulphoquinovosyldiacylglycerol (SQDG), associate with isolated chlorophyllase, thereby inactivating the enzyme in a co-operative way.
(18) Resonance Raman spectra of the pi-cation of bacterio-chlorophyll a in solution at 30 K are reported and discussed.
(19) This evidences for the significance of the reaction system organization for interaction of chlorophyllase with chlorophyll.
(20) The natural colorant area can be subdivided into anthocyanins, betalains, chlorophylls, carotenoids, flavonoids, polyphenols, Monascus, hemes, quinones, biliproteins, safflower, turmeric, and miscellaneous.
Haemoglobin
Definition:
(n.) Same as Hemoglobin.
Example Sentences:
(1) In the 153 women to whom iron supplements were given during pregnancy, the initial fall in haemoglobin concentration was less, was arrested by 28 weeks gestation and then rose to a level equivalent to the booking level.
(2) Also for bronchogenic carcinoma with that a dependence could be shown between haemoglobin concentration--and by this the oxygen supply of the tumor--and the reaction of the primary tumor after radiotherapy.
(3) The results show that of 543 subjects with AA haemoglobin, 106 (19.5%) were G-6-PD deficient and of 93 individuals with AS haemoglobin 13 (14.0%).
(4) Cell-free culture media conditioned by all but two of the seven types of monolayer studied inhibited haemoglobin synthesis by K562 cells; those conditioned by blood-monocyte-derived macrophages and two of 11 monolayers of bone-marrow-derived macrophages stimulated haemoglobin synthesis.
(5) Haemoglobin-free human erythrocyte ghosts that were prepared in the presence of EDTA and were then exposed to Ca2+ showed a substantial loss of phosphatidylinositol phosphate and phosphatidylinositol diphosphate, measured either chemically or by loss of 32P from the lipids of prelabelled membranes.
(6) PaO2, PaCO2, plasma and erythrocyte pH, haemoglobin, haematocrit, and carbon monoxide saturation and intraerythrocytic 2-3 diphosphoglycerate concentration were measured during steady-state ventilation.
(7) Bilirubin, prothrombin time, haemoglobin and blood sedimentation rate are of very little value.
(8) Glycosylated haemoglobin did rise significantly at 6 months, but this did not exceed the normal range in the majority of patients and the rise was not sustained at 9 months.
(9) However, the elevated RBC-ADA activity in this leukaemic population is not related to the fetal haemoglobin concentration.
(10) The sensitivity to ionic strength, divalent metal ions and polylysine of release of fluorescent markers from liposomes and of haemoglobin from intact erythrocytes has been assayed.
(11) Haematocrit values, haemoglobin concentrations and erythrocyte numbers showed seasonal fluctuations, being high from September to November and again in April-May, and low from January to March.
(12) In forty cases where the samples were obtained within one week of delivery, the results have been correlated with cord blood haemoglobin concentrations.
(13) The acceleration of the sedimentation rate was the most useful laboratory parameter and was found in 96,9% of the patients, followed by an increased quantity of the alpha-2 globulin, sideropenia and a decreased level of haemoglobin.
(14) Using previously determined values for blood PO2 and the oxygen haemoglobin equilibrium curves, we calculated the oxygen saturation of the blood at the measured pH.
(15) The haemoglobin electrophoretic pattern became similar to that of the donor (AA or AS) and cytogenetic studies in three patients confirmed the donor origin of bone marrow cells.
(16) The area under the serum glucose concentration--time curve and particularly the area under the serum insulin concentration--time curve were significantly increased as a result of treatment but no change occurred in the serum levels of glycosylated haemoglobin.
(17) Haematological (haemoglobin, total white count, erythrocyte sedimentation rate) and biochemical (albumin) parameters generally reflected the degree of activity and chronicity of disease prior to presentation.
(18) This laser, the beam of which is mainly absorbed by haemoglobin allowed us to cure 91,7 percent of our patients.
(19) Both in non-acidotic and in ketoacidotic patients there was a strong correlation between the amount of 2,3-DPG and the P50 at actual pH as an experssion of the oxygen affinity of haemoglobin.
(20) Flash-photolysis studies were used to characterize the kinetics of ligand binding to this haemoglobin.