Abstract:
:Breakdown of chlorophylls in attached senescing sycamore leaves held in darkness was significantly less over a 14-d period than that occurring in leaves exposed to natural light. Chlorophyll a declined more rapidly than chlorophyll b in both situations, the stability of the latter being particularly increased in darkness. The differences between dark-maintained leaves and those exposed to light with respect to soluble protein, cytoplasmic RNA, and free amino-nitrogen were much less marked. The data indicate that chlorophyll loss during senescence is, at least in part, the result of a direct photochemical degradation of the pigment.
journal_name
Plantajournal_title
Plantaauthors
Maunders MJ,Brown SBdoi
10.1007/BF00397332subject
Has Abstractpub_date
1983-08-01 00:00:00pages
309-11issue
4eissn
0032-0935issn
1432-2048journal_volume
158pub_type
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