Thomson ReutersMarch 6, 2013 09:30
* Centre-left leader outlines 8-point "core programme"
* To seek parliament approval, rejects deal with Berlusconi
* Calls on Grillo to act responsibly
By James Mackenzie
ROME, March 6 (Reuters) - Italian centre-left leader Pier Luigi Bersani, under fire for falling short in last week's election, sought on Wednesday to rally his party behind a plan to form a minority government backed by populist leader Beppe Grillo.