FOREX-Fresh Greek worries push euro to one-week low

* Uncertainty over Greece hits jittery euro

* Greek banks ask govt for more financial support

* Australian dollar buoyed by rate expectations/commodities

(Updates with fresh prices, more details)

By Neal Armstrong

LONDON, April 7 (Reuters) - The euro hit a fresh one-week low against the dollar on Wednesday as concerns over Greece's fiscal problems escalated, while the Australian dollar stayed buoyed on expectations of higher interest rates.

The euro has been pressured in recent sessions following a media report Greece wanted to renegotiate a deal reached last month over joint EU-International Monetary Fund aid. [ID:nLDE63513Y]

Greece denied the report but on Tuesday the yield spread between Greek and German government bonds exceeded 4 percentage points, the widest since the euro's launch.

Sentiment was further dented by news that Greek banks have asked for permission to access remaining funds from a state support package first agreed in 2008 [nATH005337].

"Renewed uncertainty over Greece is hurting an already jittery euro," said Stuart Bennett, senior FX strategist at Credit Agricole.

"Even though the market is already heavily short of euro, there is still downside risk."

Worries over Greece's debts and those of other peripheral euro zone countries have knocked the single currency down almost 10 percent from its January high of $1.4582. ^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^

For a graphic on the euro and Greek bond spreads, click

http://graphics.thomsonreuters.com/0210/EZ_EURGR0210.gif ^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^

At 1145 GMT, the euro fell as low as $1.3337, down 0.4 percent on the day.

Revised data showing euro zone growth stalled in the last quarter of 2009 also weighed. [ID:nLDE6360KQ]

"The GDP data, even though it is backward-looking, shows the euro zone is in a difficult situation. The outlook is negative overall for the euro," said Antje Praefcke, currency strategist at Commerzbank.

Against the yen, the euro lost 0.4 percent to 125.08 after losing over 1.2 percent on Tuesday.

AUSSIE BUOYED

The Australian dollar remained close to an 11-week high of $0.9288 set on Tuesday after the Reserve Bank of Australia on Tuesday raised its cash rate to 4.25 percent and flagged more hikes in the coming months.

"The Aussie is being helped by the RBA rate outlook versus the low rate projection coming from the FOMC. Firm commodity prices are also providing support," said Credit Agricole's Bennett.

The Federal Reserve said subdued inflation trends were likely to warrant an exceptionally low federal funds rate for an extended period. [ID:nN06235181].

The Aussie topped 87.50 yen after breaching its 200-week moving average at 87.06 yen but pulled back later after nearing resistance at 87.70, a 61.8 percent retracement of its fall in 2007 from above 107.80 to 55.11 in late 2008.

The yen was steady at 93.78 per dollar with rising short-term dollar rates and Treasury yields supporting the greenback.

The Bank of Japan said after keeping its monetary policy unchanged that the economy was picking up further, but analysts say prolonged deflation is likely to keep the government pressing the bank for more monetary easing. [ID:nTOE635025]

(Graphic by Scott Barber, Reporting by Neal Armstrong; editing by John Stonestreet)