Leaf senescence in rice plants: cloning and characterization of senescence up-regulated genes.
To identify senescence-associated genes (SAGs) in rice leaves, senescence was induced by transferring rice seedlings into darkness. Senescence up-regulated cDNAs were obtained by PCR-based subtractive hybridization. Among 14 SAG clones characterized, 11 were found to be associated with both dark-induced and natural leaf senescence. Three clones were associated only with dark-induced leaf senescence. The possible physiological roles of these SAGs during rice leaf senescence are discussed.
Lee
R H
RH
Institute of Botany, Academia Sinica, Taipei, Taiwan.
Wang
C H
CH
Huang
L T
LT
Chen
S C
SC
D003001:Cloning, Molecular; D018506:Gene Expression Regulation, Plant; D012275:Oryza / Q000502:physiology*; D018515:Plant Leaves / Q000502:physiology*; D015854:Up-Regulation