1989
DOI: 10.1111/j.1365-3040.1989.tb01925.x
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Electrophysiological evidence for a role for calcium in temperature sensing by roots of cucumber seedlings

Abstract: Abstract. Rapid‐cooling pulses to non‐stressful temperatures cause strong, transient depolarizations in cortical cells of cucumber roots. The amplitudes of these electrical responses are graded according to the rate and amplitude of the cooling pulse. Such graded potentials are typical of sensory processes and indicate that plants possess the ability to sense temperature change. La3+, a blocker of Ca2+ channels, and ethylene glycol bis‐(β‐aminoethyl ether) N,N,N′,N′‐acetic acid (EGTA), a Ca2+ chelator, inhibit… Show more

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Cited by 68 publications
(70 citation statements)
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“…Both phases of the voltage transient were reduced by externally applied 1 mM La 3+ , an inhibitor of Ca 2+ -permeable channels (Fig. 4, D-F), which is consistent with the engagement of Ca 2+ -permeable channels at the plasma membrane in cold responses as reported before (Minorsky and Spanswick, 1989;Knight et al, 1996;Lewis and Spalding, 1998;Plieth et al, 1999).…”
Section: +supporting
confidence: 68%
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“…Both phases of the voltage transient were reduced by externally applied 1 mM La 3+ , an inhibitor of Ca 2+ -permeable channels (Fig. 4, D-F), which is consistent with the engagement of Ca 2+ -permeable channels at the plasma membrane in cold responses as reported before (Minorsky and Spanswick, 1989;Knight et al, 1996;Lewis and Spalding, 1998;Plieth et al, 1999).…”
Section: +supporting
confidence: 68%
“…Cold shocks elicited voltage transients (also referred to as "signals" here and in the figures) with variable shapes in SEs of control plants, as demonstrated previously (Minorsky and Spanswick, 1989;Thorpe et al, 2010). These transients were often biphasic.…”
Section: +mentioning
confidence: 59%
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“…Low temperature can directly cause microtubule depolymerization. It could also cause microtubule depolymerization indirectly, through such processes as increased cytoplasmic calcium concentration (21). Further work is needed to distinguish between these alternatives.…”
mentioning
confidence: 99%
“…A transient change in cytosolic calcium levels is one of the initial responses of some plants to adverse environmental conditions such as low temperature, drought, and salinity (16, 19 -23). Several studies show that the ability of plants to withstand calcium level changes is essential for them to survive different abiotic stresses (16,24,25). Typically, cytosolic free calcium is maintained at submicromolecular levels (ϳ200 nM) by homeostatic mechanisms involving a variety of calcium channels, pumps, and secondary transporters in a variety of cell organelles such as vacuole, endoplasmic reticulum, chloroplasts and mitochondria, and cell wall (14,15,26).…”
mentioning
confidence: 99%