* SPDR Gold Trust GLD, the world's largest gold-backed exchange-traded fund, said its holdings rose 0.2% to 1,000.21 tonnes on Monday from 998.17 tonnes on Friday. Sept 14 (Reuters) - Gold prices edged lower on Tuesday as a stronger dollar crimped bullion's appeal ahead of U.S. inflation data that could offer cues on the possible timeline for the Federal Reserve's tapering. * Inflation in the euro area will "in all likelihood" ease as soon as next year but the European Central Bank is ready to act if it does not, ECB policymaker Isabel Schnabel said on Monday.