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SAP FROM A GRAPE VINE (VITIS VINIFERA)
Sap from a grape vine (Vitis vinifera). Sap within woody plants is carried upwards in xylem elements of the central stem. Grape vines have a high root pressure so that if stems are cut in early spring before leaves develop, the sap bleeds profusely, as here. (KEYSTONE/SCIENCE PHOTO LIBRARY/DR JEREMY BURGESS)
Instruktionen
COPYRIGHTPFLICHTIG
Lizenz
Rights Managed
Erstellungsdatum
20110825
Ort
Credit
KEYSTONE
Source
SCIENCE PHOTO LIBRARY SPL
Byline
DR JEREMY BURGESS
Grösse
3421 x 5125 px
Dateityp
JPEG