Patrice Thuleau

Learn More
Plasma membrane-bound voltage-dependent calcium channels may couple the perception of an initial stimulus to a regulated pathway for calcium influx. The activities of these channels have been shown to be very low and highly unstable but may be recruited by large-predepolarizing pulses, according to a process referred to as recruitment. By combining(More)
The Ca(2+) ion is recognized as a crucial second messenger in signaling pathways coupling the perception of environmental stimuli to plant adaptive responses. Indeed, one of the earliest events following the perception of environmental changes (temperature, salt stress, drought, pathogen, or herbivore attack) is intracellular variation of free calcium(More)
Numerous biological assays and pharmacological studies have led to the suggestion that depolarization-activated plasma membrane Ca2+ channels play prominent roles in signal perception and transduction processes during growth and development of higher plants. The recent application of patch-clamp techniques to isolated carrot protoplasts has led to direct(More)
REVIEW INTRODUCTION Ca2+ channels have been suggested to play major roles in the initiation of a large number of signal transduction processes in higher plant cells, including bud formation, polar growth, gas exchange regulation, secretion, movements , and light-regulated and hormone-regulated growth and development (Hepler and Wayne, 1985; Leonard and(More)
  • 1