obsolete mesenchymal stem cell maintenance involved in mesonephric nephron morphogenesis (obsolete GO:0061235)
OBSOLETE. The process in which an organism retains a population of mesenchymal stem cells that contributes to the shaping of a nephron in the mesonephros. A mesenchymal stem cell is a cell that retains the ability to divide and proliferate throughout life to provide progenitor cells that can differentiate into specialized mesenchymal cells.