BEGIN:VCALENDAR
VERSION:2.0
PRODID:-//Talks.cam//talks.cam.ac.uk//
X-WR-CALNAME:Talks.cam
BEGIN:VEVENT
SUMMARY:Are plant cells balloons? A biomechanical perspective on plant cel
 l growth.  - Yuchen Long 
DTSTART:20230522T133000Z
DTEND:20230522T143000Z
UID:TALK200044@talks.cam.ac.uk
CONTACT:Elena Scarpa
DESCRIPTION:Cellular growth is ultimately a biomechanical process. In plan
 ts\, the major biomechanical forces are the cellular pressure\, or “turg
 or pressure”\, and the resulting cell wall tension. Specifically\, osmos
 is causes cellular pressure build-up and stretches the cell walls to expan
 d\, leading to many biophysicists comparing plant cells to “water-filled
  balloons”. Despite this analogy\, the precise role of tissue hydraulics
  in plant meristematic tissues remains elusive. Here\, by combining microm
 echanical measurement\, 4D confocal live imaging and physical modelling\, 
 we demonstrate that cellular pressure is highly heterogeneous within the s
 hoot apical meristem (SAM) of the model plant Arabidopsis thaliana. We fur
 ther suggest that the coupling of tissue mechanics and hydraulics can pred
 ict various growth modes that cannot be recapitulated by previous models. 
 Together\, our results reveal cell pressure as a source of patterned heter
 ogeneity and illustrate links between tissue geometry\, mechanics\, and gr
 owth\, with potential roles in tissue homeostasis and morphogenesis. 
LOCATION:Online
END:VEVENT
END:VCALENDAR