Abstract
GDSL esterases/lipases (GELPs), present throughout all living organisms, have been a very attractive research subject in plant science due mainly to constantly emerging properties and functions in plant growth and development under both normal and stressful conditions. This review summarizes the advances in research on plant GELPs in several model plants and crops, including Arabidopsis, rice, maize and tomato, while focusing on the roles of GELPs in regulating plant development and plant–environment interactions. In addition, the possible regulatory network and mechanisms of GELPs have been discussed.
Highlights
We have focused on new, recent information on plant GDSL esterases/lipases (GELPs) and their roles in plant growth and development
Genes over three time points during rice seed germination, and found that most of them are expressed during germination, and about one third of them are highly expressed across all three germination stages [17], indicating an important role for GELPs in seed germination
Arabidopsis CDEF1 was expressed in the zone of lateral root emergence, loss-offunction mutants of CDEF1 did not show any defects in lateral root emergence [23], likely due to redundancy among GELPs
Summary
GDSL esterase/lipases (GELPs) represent a variety of lipolytic enzymes that hydrolyze diverse lipidic substrates including thioesters, aryl esters, and phospholipids [1]. GELPs contain a unique and conserved GDSL motif GDSxxDxG at their N-terminus that distinguish them from classic lipolytic enzymes that harbor a conserved motif GxSxG [1]. GELPs are widely distributed in microbes, animals and plants, playing vital roles in growth, development and stress responses [2,3]. Understanding physiological and molecular functionalities of plant GDSL lipases will facilitate functional characterization of these fascinating lipolytic enzymes, and the possible application in plant breeding for resilient crops with multiple resistant/tolerant traits to environmental changes, to secure food supply under changing climate conditions. We have focused on new, recent information on plant GELPs and their roles in plant growth and development.
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