Colorless, non-fluorescent Chl-catabolites (NCCs) are the typical, ubiquitous products of chlorophyll
(Chl)-breakdown in senescent leaves. However, a fluorescent Chl-catabolite (FCC) accumulated in
de-greened leaves of Spathiphyllum wallisii (Peace Lily), which showed a weak blue luminescence.
The FCC, named Sw-FCC-62, was ‘hypermodified’ with an unprecedented 6-(2-[3,4-dihydroxy-phenyl]-
ethyl)-b-glucopyranosidyl ester at the propionyl group. Such esters stabilize FCCs against their
typical and rapid, spontaneous isomerization to NCCs. Chl-breakdown in Sp. wallisii thus branches
off from the ‘common’ path in leaves, and furnishes unique and ‘persistent’ FCCs. Our findings on
‘hypermodified’ FCCs also call for attention as to possible physiological roles of Chl-catabolites in
plants
Colorless, non-fluorescent Chl-catabolites (NCCs) are the typical, ubiquitous products of chlorophyll(Chl)-breakdown in senescent leaves. However, a fluorescent Chl-catabolite (FCC) accumulated inde-greened leaves of Spathiphyllum wallisii (Peace Lily), which showed a weak blue luminescence.The FCC, named Sw-FCC-62, was ‘hypermodified’ with an unprecedented 6-(2-[3,4-dihydroxy-phenyl]-ethyl)-b-glucopyranosidyl ester at the propionyl group. Such esters stabilize FCCs against theirtypical and rapid, spontaneous isomerization to NCCs. Chl-breakdown in Sp. wallisii thus branchesoff from the ‘common’ path in leaves, and furnishes unique and ‘persistent’ FCCs. Our findings on‘hypermodified’ FCCs also call for attention as to possible physiological roles of Chl-catabolites inplants
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