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Author Li G, Lin F, Xue HW.
Title Genome-wide analysis of the phospholipase D family in Oryza sativa and functional characterization of PLD beta 1 in seed germination.
Phospholipase D (PLD) plays a critical role in plant growth and development, as well as in hormone and stress responses. PLD encoding genes constitute a large gene family that are present in higher plants. There are 12 members of the PLD family in Arabidopsis thaliana and several of them have been functionally characterized; however, the members of the PLD family in Oryza sativa remain to be fully described. Through genome-wide analysis, 17 PLD members found in different chromosomes have been identified in rice. Protein domain structural analysis reveals a novel subfamily, besides the C2-PLDs and PXPH-PLDs, that is present in rice - the SP-PLD. SP-PLD harbors a signal peptide instead of the C2 or PXPH domains at the N-terminus. Expression pattern analysis indicates that most PLD-encoding genes are differentially expressed in various tissues, or are induced by hormones or stress conditions, suggesting the involvement of PLD in multiple developmental processes. Transgenic studies have shown that the suppressed expression of rice PLD beta 1 results in reduced sensitivity to exogenous ABA during seed germination. Further analysis of the expression of ABA signaling-related genes has revealed that PLD beta 1 stimulates ABA signaling by activating SAPK, thus repressing GAmyb expression and inhibiting seed germination.
Journal Cell Res
Country China
Volume 17(10)
Pages 881-94.
Year 2007
PubMed ID 17876344
PubMed Central ID -
DOI 10.1038/cr.2007.77
Gene HAK27 NHL1 NHL2 NHL3 NOL NYC3 PLDALPHA3 PLDalpha1 PLDalpha2 PLDalpha4 PLDalpha5 PLDalpha6 PLDalpha7 PLDalpha8 PLDbeta1 PLDbeta2 PLDdelta1 PLDdelta2 PLDdelta3 PLDkappa PLDvarphi PLDzeta1 PLDzeta2
Strain Wild Core Collection -
Induced Mutation Lines(NIG Collection) -
Sterile Seed Strain -
Lethal Embryo
Mutantion Strain
Stages in Each Organ
- Muant Lines (Gene)
Cultivated Varieties(NIG Collection) -
Stages in Each Organ -