If the office of county recorder is abolished in a county, the auditor of that county shall be referred to as the county auditor and recorder. After abolition of the office of county recorder, references in the Code requiring filing or recording of documents with the county recorder shall be deemed to require the filing in the office of the county auditor and recorder, and all duties of the abolished office of recorder shall be performed by the county auditor and recorder. However, the board of supervisors may direct that any of the duties of the abolished office of recorder prescribed in section 331.602, subsection 9, 10, 11, or 16, or section 331.605, subsection 1, paragraph “a”, “b”, “c”, “d”, or “e”, shall be performed by other county officers or employees as provided in section 331.323.