Monday, December 09, 2019
Interesting but not quite meaningful yet....
Via New "Scientist":
Previously, devices have been attached to plants to record the vibrations caused by air bubbles forming and exploding – a process known as cavitation – inside xylem tubes, which are used for water transport. But this new study is the first time that sounds from plants have been measured at a distance. On average, drought-stressed tomato plants made 35 sounds an hour, while tobacco plants made 11. When plant stems were cut, tomato plants made an average of 25 sounds in the following hour, and tobacco plants 15. Unstressed plants produced fewer than one sound per hour, on average.There's no doubt that plants are intelligent. They have senses and outputs, and they think and communicate. This particular set of outputs doesn't necessarily serve as communication. It could simply be the result of liquid moving through the veins and capillaries of the stem to reach the injured place or to redistribute water. Insects could certainly use the sound whether it's intentional or not.
Labels: Smarty-plants
¶ 12:20 AM
