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The Process Of Photosynthesis Steadily Degrades The Supply Of Chlorophylls In Th ...

The Process Of Photosynthesis Steadily Degrades The Supply Of Chlorophylls In Th ...

  Stockphoto ID: 3279336

File name: NAWI_04103627PD3k.jpg
Format: digital, 3000+ pixels longest side
Property release: no Model release: no
Source: photographer Based in: United Kingdom

Description: The process of photosynthesis steadily degrades the supply of chlorophylls in thses birch leaves . plants through the summer replenish chlorophylls . In autumn when the days are shorter or when the plants are drought stressed , deciduous trees decrease chlorophyll pigment production allowing other pigments present in the leaf to become more apparent . The brightest leaf colors are produced when days are short and nights are cool but remain above freezing point . These other pigments include carotenoids that are yellow , brown , and orange . Anthocyanin pigments produce reds and purple colors , though they are not always present in the leaves but are produced in the foliage in late summer when sugars are trapped in the leaves after the process of abscission begins .

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