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plant_perception [2012-10-17 10:47] – nik | plant_perception [2012-10-18 07:46] – nik |
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"Environmental stimuli such as spontaneous changes in temperature, light, touch or wounding can induce electrical signals at any site of the symplastic continuum." | "Environmental stimuli such as spontaneous changes in temperature, light, touch or wounding can induce electrical signals at any site of the symplastic continuum." |
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| == signal types == |
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| Action Potential (AP) - rapidly propogating fixed amplitude signals, triggered with stimulus at threshold, do not vary with singal intensity, passivly propogating. signal duration/propogation in the order of seconds, with refractory periods in the order of 10s of seconds or minutes in some plants. amplitudes in the order of 100mV in mimosa. |
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| Variation Potential (VP) - also refered to as 'slow wave potentials'. continuous, varying amplitude in relation to stimululus, non-self perpetualting, singal duration in the order of minutes, amplitude in similar range to APs, amplitude and speed of signals can decrease from the site of local stimulus. |
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=== misc & various === | === misc & various === |