In a mature flowering plant or tree, most of the cells that make up the xylem are specialised cells called vessels.

Only two tissues, regularly present in this plant axis, are so extended in the ... these are the wood or xylem, and the phloem or bast. Usually, the sieve-tubes of the phloem have been regarded ...

Once in the xylem tissue, water moves easily over long distances ... and lengths typically measuring about 5 cm although some plant species contain vessels as long as 10 m. Xylem conduits begin ...

This advanced technology can detect a reduction in acidity in plant xylem tissues, providing early warning of drought stress in plants up to 48 hours before traditional methods. Drought—or a ...