9.B.463.1.1
Leaf senescence-related 1, LSR1, of 163 aas and 0 TMSs (Feng et al. 2022).  Senescence is the final stage in the life history of a leaf, whereby plants relocate nutrients from leaves to other developing organs. An understanding of the network-based molecular mechanism that incorporates various environmental signals and leaf age, and involves a complex process with the coordinated actions of multiple pathways. Feng et al. 2022 identified a novel participant, named LSR1 (Leaf Senescence Related 1), that involved in the regulation of leaf senescence. A Loss-of-function lsr1-1 mutant showed delayed leaf senescence whereas the overexpression of LSR1 accelerated senescence. LSR1 encodes a lipid transfer protein, which is located in chloroplast and the intercellular space. LSR1 may be involved in the regulation of leaf senescence by transporting lipids in plants (eng et al. 2022).