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  Indian J Med Microbiol
 

Figure 9: In situ detection of phenolic principles in fresh tissue sample of Portulaca oleracea using NPR reagent staining method. NPR reagent staining: Fluorescence intensity of the leaf tissue is directly proportional to its phenolic/flavonoid contents. (a) transverse section of control leaf sample exhibiting green fluorescence throughout, (b) transverse section of samples collected from PAH pollution area did not show any comparable green fluorescence

Figure 9: <i>In situ</i> detection of phenolic principles in fresh tissue sample of <i>Portulaca oleracea</i> using NPR reagent staining method. NPR reagent staining: Fluorescence intensity of the leaf tissue is directly proportional to its phenolic/flavonoid contents. (a) transverse section of control leaf sample exhibiting green fluorescence throughout, (b) transverse section of samples collected from PAH pollution area did not show any comparable green fluorescence