DR KEITH WHEELER / SCIENCE PHOTO LIBRARY DR KEITH WHEELER / SCIENCE PHOTO LIBRARY
Dodder parasitic plant. Light micrograph of a section through a host plant parasitised by a dodder (Cuscuta sp.). This vine-like parasitic plant grows around the stems of gorse and heather, as it is unable to survive without a host due to having no roots. Nutrients and water are obtained through root-like structures called haustoria (blue and yellow, right), which tap into the tissues of the host plant's vascular system (red, left). Magnification: x100 when printed 10 centimetres wide.
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