当他们开始切割茎部时,他们发现植物开始发出在20至100千赫兹之间的“尖叫”,他们相信这种尖叫很可能是为了警告附近的其他植物和生物。
When the tomato plant’s stem was cut, 25 ultrasonic distress sounds were recorded over the course of an hour, and on the other hand, 15 ultrasonic distress sounds were recorded from the tobacco plant.
他们在切开番茄植株的茎部后,在一小时的过程中记录到了25次超声波“惨叫声”。另一方面,从烟草植株实验中记录到了15次超声波“惨叫声”。
When they deprived the plants of water, the tomato plants recorded even more distress sounds with 35 distress sounds in an hour while the tobacco plants recorded about 11 distress sounds.
当他们剥夺这些植株的水分时,在一个小时内记录到番茄植株发出了更多的“惨叫声”:35次,而在烟草植株实验中记录到了约11次“惨叫声”。
The plants also responded differently to different kinds of stress, for example, the tobacco plant gave out a more intense ‘scream’ when they were deprived of water than when their stems were cut. But plants that were in no immediate danger released less than one ultrasonic sound per hour.
除此之外,这些植物对不同压力的反应也不同,例如,当烟草植物缺水时,发出的尖叫声比其茎部被割断时发出的“尖叫”声更为强烈。而没有遭遇即刻危险的植物每小时释放的超声波都少于一次。
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