Identification of phloem-associated translatome alterations during leaf development in Prunus domestica L.

Abstract

Genetics: the basis of plum plant molecule transport during development Genes likely involved in DNA replication, immune defenses, stress response, and more occur during development within the plum plant tissue that transports molecules such as nutrients, genetic material, and hormones. The genes underlying this tissue, called phloem, are sparsely understood, inspiring a US team of researchers—led by the University of Maryland’s James Culver—to categorize their activity. Using a technique that “traps” cell-specific genetic material in the process of translation, the team analyzed plum phloem gene expression at 2, 4, and 6 weeks after the induction of leaf development. Finding reduced activity associated with DNA replication activity and an increase in activity associated with immune response, response to nutrients, and transport of sugars among others. These findings could power investigations into phloem processes and how they could be manipulated for enhanced crop production.