BEGIN:VCALENDAR
VERSION:2.0
PRODID:-//Talks.cam//talks.cam.ac.uk//
X-WR-CALNAME:Talks.cam
BEGIN:VEVENT
SUMMARY:Long-distance wound signals in Arabidopsis leaves - Edward Farmer\
 , University of Lausanne
DTSTART:20150604T120000Z
DTEND:20150604T130000Z
UID:TALK58905@talks.cam.ac.uk
CONTACT:38889
DESCRIPTION:Most organisms that feed on living meals extract their food st
 ealthily. Chewing insects do this by cutting tissues with sharp mandibles 
 and this minimizes gene expression distal to wounds. However\, wound signa
 ls escape into distal tissues to initiate the synthesis of the wound hormo
 ne jasmonate (JA). How fast is this process and how does it occur? Increas
 es in the level of JA begin in about 30 s within wounds on Arabidopsis lea
 ves and similar increases are seen about 15 s later in distal tissue withi
 n the same leaf. It takes about 90 s to detect JA increases in distal leav
 es. From this it is possible to estimate that long-distance wound signals 
 can travel in the range of 3–8 cm min-1 through a plant. We found that f
 eeding Spodoptera littoralis larvae elicited electrical activity of a simi
 lar velocity to the long distance wound signal that leads to JA accumulati
 on distal to wounds. Several clade 3 GLUTAMATE RECEPTOR-LIKE genes that ar
 e necessary for the production of these signals were identified. Together 
 with the identification of cellular sites of JA synthesis this is providin
 g new insights into axial and radial wound signalling mechanisms in leaves
 .
LOCATION:Department of Plant Sciences\, Large Lecture Theatre
END:VEVENT
END:VCALENDAR