Meanwhile, Slovakia's Dominika Cibulkova and Belgium's Kirsten Flipkens both survived scares as they came through the opening round.
Seventh seed Cibulkova lost the opening set against Germany's world number 57 Annika Beck, but upped the pace thereafter to force a string of break points as she ended up a 3-6 6-2 6-1 winner.
Fifth seed Flipkens also lost the opening set to a lower-ranked player, with world number 81 Donna Vekic racing through the opening set against the world number 19.
Flipkens turned things round thereafter, however, and having struggled on serve in the opening set she wasn't threatened again as she won 2-6 6-2 6-2.
Linz Open Women's Singles Round 1 matches on Tuesday
2-Sloane Stephens (U.S.) beat Magdalena Rybarikova (Slovakia) 6-3 6-1
3-Ana Ivanovic (Serbia) beat Yanina Wickmayer (Belgium) 6-2 6-4
4-Carla Suarez Navarro (Spain) beat Kristyna Pliskova (Czech Republic) 6-2 6-3
5-Kirsten Flipkens (Belgium) beat Donna Vekic (Croatia) 2-6 6-2 6-2
Patricia Mayr-Achleitner (Austria) beat 6-Sorana Cirstea (Romania) 1-6 6-3 6-4
7-Dominika Cibulkova (Slovakia) beat Annika Beck (Germany) 3-6 6-2 6-1
Andrea Petkovic (Germany) beat Yvonne Meusburger (Austria) 6-3 7-5
Katarzyna Piter (Poland) beat Irina Begu (Romania) 6-2 4-6 6-3
Camila Giorgi (Italy) beat Julia Goerges (Germany) 6-2 6-3
Maryna Zanevska (Ukraine) beat Aleksandra Krunic (Serbia) 7-5 2-6 6-2