* Euro down 0.2 percent at $1.4930
* German Ifo rises; German Q3 GDP unchanged
* Risk-taking eases on bank sector concerns
* Upside for euro/dollar heavy above $1.5000
By Tamawa Desai
LONDON, Nov 24 (Reuters) - The euro fell against the dollar on Tuesday on banking sector concerns but pared losses as a key measure of German business sentiment beat forecasts, triggering optimism the euro zone's biggest economy was recovering.
The German Ifo institute's business climate index rose to 93.9 in November from an upwardly revised 92.0 in October, and beat forecasts of 92.5. The current conditions index rose to 89.1 from 87.4 the previous month, and beat expectations of 88.0.
Separate data showed Germany's economy grew 0.7 percent in the third quarter, unchanged from a preliminary estimate.
"The economic recovery is continuing and we expect growth to maintain its high momentum in the fourth quarter," said Ralf Umlauf, economist at Helaba.
"Despite the improvement, the Ifo Index is still at a moderate level, historically. We therefore do not infer that there will be pressure on the European Central Bank to herald a change in interest rate policy in the immediate future."
Earlier, the euro was hurt on a German media report the majority owners of WestLB were threatening not to support the stricken German landesbank's requirement for more capital, citing financial sources.
Worries about the global banking system, including a report published on Monday by U.S. ratings firm Standard and Poor's which raised concerns about the health of some major banks, prompted investors to pare back on riskier assets.
"Rallies on risk assets are showing diminishing returns, and major currencies are looking stretched against the dollar," said Lee Hardman, currency economist at Bank of Tokyo-Mitsubishi UFJ.
European shares were down 0.7 percent while the bank sub-sector of the DJ Stoxx 600 fell 1.6 percent.
By 0943 GMT, the euro was down 0.2 percent on the day at $1.4930, after falling as low as $1.4889. It hit a one-week high of $1.5001 on Monday.
Traders cited options with a strike price of $1.5000 and $1.5050 set to expire later in the day.
The dollar index, which tracks the performance of the greenback against a basket of six other major currencies, was up 0.2 percent at 75.257.
Some investors buy the dollar, seen as a safe haven, against other higher-yielding currencies and sell assets like stocks and commodities when economic optimism diminishes.
The yen was also broadly firmer, with the dollar down 0.3 percent to 88.63 yen, having earlier touched a six-week low of 88.56 yen on trading platform EBS.
The euro fell 0.6 percent to 132.30 yen.
Traders will focus on U.S. economic indicators later in the day, including revised U.S. gross domestic product for the third quarter and housing market data.
The U.S. Federal Reserve will release minutes of its Nov. 3-4 meeting, and markets will look for any hints on when and how the Fed will draw down extraordinary economic support measures. The minutes also include economic projections and the market will pay special attention to unemployment.
Commodity-linked currencies also weakened. The Australian dollar was down 0.7 percent at $0.9171, off a 15-month high of $0.9407 last week. The New Zealand dollar fell 1.0 percent to $0.7253, having risen more than 1 percent on Monday. (Editing by Nigel Stephenson) ((tamawa.desai@thomsonreuters.com; Tel: +44207 542 7018, Reuters Messaging: tamawa.desai.reuters.com@reuters.net))