Loss-of-function of gynoecium-expressed phospholipase pPLAIIγ triggers maternal haploid induction in Arabidopsis.

Production of in planta haploid embryos that inherit chromosomes from only one parent can greatly increase breeding efficiency via quickly generating homozygous plants, called doubled haploid. One of the main players of in planta haploid induction is a pollen-specific phospholipase A, which is able, when mutated, to induce in vivo haploid induction in numerous monocots. However, no functional orthologous gene has been identified in dicots plants.

Overexpression of in Arabidopsis Reduced Xylem Lignification of Stem by Regulating Peroxidases.

Patatin-related phospholipases A () are a group of plant-specific acyl lipid hydrolases that share less homology with phospholipases than that observed in other organisms. Out of the three known subfamilies (, , and ), the member of genes is particularly known for modifying the cell wall structure, resulting in less lignin content. Overexpression of and ginseng-derived in Arabidopsis and hybrid poplar was reported to reduce the lignin content.

The Reduced Longitudinal Growth Induced by Overexpression of Is Regulated by Genes Encoding Microtubule-Associated Proteins.

There are three subfamilies of patatin-related phospholipase A (pPLA) group of genes: , , and . Among the four members of (, , , ), the overexpression of three isoforms (, , and ) displayed distinct morphological growth patterns, in which the anisotropic cell expansion was disrupted. Here, the least studied was characterized, and it was found that the overexpression of in Arabidopsis resulted in longitudinally reduced cell expansion patterns, which are consistent with the general phenotype induced by s overexpression.