Rapid movements in plants

Rapid Movements in Plants

Physics of rapid movements in plants

Rapid movements of plants organs require solute-water cotransporters or contractile proteins.

Plant organs such as leaves or petals move as a result of changes in the shape and/or the volume of motor cells. In a similar manner, stomates open and close when the turgor in the guard cells changes. The time scale of such movements ranges from several milliseconds to hours. The most detailed studies of cellular movement have been done with stomata. Stomatal opening requires the uptake of K b...

Rapid Whisker Movements in Sleeping Newborn Rats

Spontaneous activity in the sensory periphery drives infant brain activity and is thought to contribute to the formation of retinotopic and somatotopic maps. In infant rats during active (or REM) sleep, brainstem-generated spontaneous activity triggers hundreds of thousands of skeletal muscle twitches each day; sensory feedback from the resulting limb movements is a primary activator of forebra...

Rapid response of rice plants to arsenite toxicity

Absorption of arsenic (As) by plant root is an essential activity that bridges the soil As concentration and physiological responses which can be monitored soon after exposure to As. In the present study, physiological responses to short exposure to arsenite (AsIII) was compared in two indigenous rice cultivars one adapted to temperate and humid (TH) and the second one to warm and humid (WH) cl...