The third seed struggled to overcome the Italian in the first set but wrapped up the tie-break 7-5 before racing through the second set 6-1 to book a second-round berth against Venezuela's Milagros Sequera.
One seed that was scattered, however, was Germany's number four Anna-Lena Groenefeld who lost an epic tussle with Italy's Tathiana Garbin 7-6 6-7 6-3.
Israel's Shahar Peer also progressed at the expense of Meghann Shaughnessy, the American briefly threatening an upset before the fifth seed triumphed 6-1 5-7 6-0.
China's Li Na, the sixth seed, lost just four games as she swept past Czech Sandra Zahlavova while seventh seed Katarina Srebotnik beat American Vania King 6-4 6-3.
REUTERS SAM PM1526