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chlorophyll a |
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chlorophyll a [′klȯr·ə‚fil ′ā] (biochemistry) C55H72O5N4Mg A magnesium chelate of dihydroporphyrin that is esterified with phytol and has a cyclopentanone ring; occurs in all higher plants and algae. How to thank TFD for its existence? Tell a friend about us, add a link to this page, add the site to iGoogle, or visit webmaster's page for free fun content. |
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These results are critical for evaluating the efficacy of chlorophyll as an agent for decreasing intake of toxic PCDD and PCDF congeners. Cherry trees and unusual weeping peaches are covered with clouds of soft blossoms in spring, crape myrtles bloom dark pink in summer, leaves relinquish their green chlorophyll as other pigments, in burgundy and gold, take over in fall and, in winter, the silhouettes of leafless trees suddenly appear, revealing smooth or textured barks and sculpted branches. When first identified in 1985, Prochlorothrix intrigued biologists because it has both chlorophyll a and chlorophyll b -- a combination of photosynthetic pigments that closely resembles the pigments inside chloroplasts. |
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