Knowing when to grow: signals regulating bud dormancy.
Dormancy regulation in vegetative buds is a complex process necessary for plant survival, development and architecture. Our understanding of and ability to manipulate these processes are crucial for increasing the yield and availability of much of the world's food. In many cases, release of dormancy results in increased cell division and changes in developmental programs. Much can be learned about dormancy regulation by identifying interactions of signals in these crucial processes. Internal signals such as hormones and sugar, and external signals such as light act through specific, overlapping signal transduction pathways to regulate endo-, eco- and paradormancy. Epigenetic-like regulation of endodormancy suggests a possible role for chromatin remodeling similar to that known for the vernalization responses during flowering.
Horvath
David P
DP
USDA/ARS, Biosciences Research Laboratory, 1605 Albrecht Blvd, PO Box 5674, State University Station, Fargo, ND 58105, USA. horvathd@fargo.usda.ars.gov
Anderson
James V
JV
Chao
Wun S
WS
Foley
Michael E
ME
D050260:Carbohydrate Metabolism; D002454:Cell Differentiation / Q000502:physiology; D002455:Cell Division / Q000502:physiology; D035263:Flowering Tops / Q000254:growth & development*; D018506:Gene Expression Regulation, Plant; D063245:Plant Development; D010937:Plant Growth Regulators / Q000378:metabolism; D018520:Plant Shoots / Q000254:growth & development*; D010944:Plants / Q000235:genetics / Q000378:metabolism; D015398:Signal Transduction / Q000502:physiology*
D010937:Plant Growth Regulators