This image is not available for purchase in your country.

Maple leaves in autumn colours

Maple leaves in autumn colours

B740/0021

Rights Managed

This image is not available for purchase in your country.

Please contact your Account Manager if you have any query.

Credit

JOHN HESELTINE / SCIENCE PHOTO LIBRARY. JOHN HESELTINE / SCIENCE PHOTO LIBRARY.

Caption

Autumnal colours showing on a collection of maple leaves Acer sp. The yearly leaf fall among deciduous trees results from a combination of leaf senescence (death) & absicission (fall). A change is signalled by the accumulation of lipid droplets (fat) in the chloroplasts (photosynthetic bodies within the cell, which contain the green pigments, chlorophyll). As photosynthesis slows down due to shorter daylight hours & lipid production increases, colour changes occur. The abscission zone (point where leaf breaks from stem) is stimulated by the production of ethylene. Ethylene is involved in the secretion of enzymes which weaken the cell wall in the abscission zone.

Release details

Model release not required. Property release not required.

 {{ i.shot_duration ? i.shot_duration + ' ' : '' }}{{ i.shot_uhd ? '4K ' : i.hires ? 'HD ' : '' }}{{ i.spl_number }} R{{ i.license }}

  • Add to board
  • Similar {{ mediaType(i) }}