Plant responses to environmental stress: regulation and functions of the Arabidopsis TCH genes.
Expression of the Arabidopsis TCH genes is markedly upregulated in response to a variety of environmental stimuli including the seemingly innocuous stimulus of touch. Understanding the mechanism(s) and factors that control TCH gene regulation will shed light on the signaling pathways that enable plants to respond to environmental conditions. The TCH proteins include calmodulin, calmodulin-related proteins and a xyloglucan endotransglycosylase. Expression analyses and localization of protein accumulation indicates that the potential sites of TCH protein function include expanding cells and tissues under mechanical strain. We hypothesize that at least a subset of the TCH proteins may collaborate in cell wall biogenesis.
Braam
J
J
Department of Biochemistry and Cell Biology, Rice University, Houston, TX 77005-1892, USA. braam@bio.rice.edu
Sistrunk
M L
ML
Polisensky
D H
DH
Xu
W
W
Purugganan
M M
MM
Antosiewicz
D M
DM
Campbell
P
P
Johnson
K A
KA
D017360:Arabidopsis / Q000235:genetics / Q000502:physiology*; D002135:Calcium-Binding Proteins / Q000096:biosynthesis; D002473:Cell Wall / Q000502:physiology; D004777:Environment; D017343:Genes, Plant; D010940:Plant Proteins / Q000096:biosynthesis*; D012045:Regulatory Sequences, Nucleic Acid; D013314:Stress, Mechanical
D002135:Calcium-Binding Proteins; D010940:Plant Proteins