Matches in SemOpenAlex for { <https://semopenalex.org/work/W2802341444> ?p ?o ?g. }
- W2802341444 abstract "Autumn senescence of deciduous trees is characterized by chlorophyll degradation and flavonoid synthesis. In the present study, chlorophyll and flavonol contents were measured every morning and evening during the whole autumn with a non-destructive method from individual leaves of Sorbus aucuparia, Acer platanoides, Betula pendula and Prunus padus. In most of the studied trees, the chlorophyll content of each individual leaf remained constant until a phase of rapid degradation commenced. The fast phase lasted only ~1 week and ended with abscission. In S. aucuparia, contrary to the other species, the chlorophyll content of leaflets slowly but steadily decreased during the whole autumn, but rapid chlorophyll degradation commenced only prior to leaflet abscission also in this species. An increase in flavonols commonly accompanied the rapid degradation of chlorophyll. The results may suggest that each individual tree leaf retains its photosynthetic activity, reflected by a high chlorophyll content, until a rapid phase of chlorophyll degradation and flavonoid synthesis begins. Therefore, in studies of autumn senescence, leaves whose chlorophyll content is decreasing and leaves with summertime chlorophyll content (i.e. the leaves that have not yet started to degrade chlorophyll) should be treated separately." @default.
- W2802341444 created "2018-05-17" @default.
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- W2802341444 date "2018-05-01" @default.
- W2802341444 modified "2023-10-09" @default.
- W2802341444 title "Degradation of chlorophyll and synthesis of flavonols during autumn senescence—the story told by individual leaves" @default.
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- W2802341444 doi "https://doi.org/10.1093/aobpla/ply028" @default.
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