Inter snatch late victory
Holders Atletico on a roll
Napoli produced another poor away performance, losing 3-1 at Dnipro Dnipropetrovsk, and Udinese suffered a shock 3-1 defeat at Young Boys where Raul Bobadilla scored a hat-trick.
Titleholders Atletico Madrid chalked up their third straight group stage win, beating Academica Coimbra 2-1, but Athletic Bilbao, last season's runners-up, were left on the brink of elimination after losing 2-1 at Olympique Lyon. Liverpool took advantage of Udinese's slip to go top with a 1-0 win over Anzhi Makhachkala.
Palacio headed in a cross from Diego Milito one minute after Partizan's Lazar Markovic nearly scored on the break. The win left Inter and Rubin Kazan, who beat Neftci 1-0, level on seven points from three games at the top of Group H.
Lazio were gifted a 25th minute lead in Athens when Giourkas Seitaridis's back pass caught goalkeeper Orestis Karnezis out of position. Toche equalised for Panathinaikos in stoppage time. Lazio stayed top of Group J with five points.
Three of Germany's four teams won, Bayer Leverkusen drubbed Rapid Vienna 4-0 away from home to go top of Group K. Hanover 96 won 2-1 at Helsingborg which took them top of Group L and Borussia Moechengladbach beat Olympique Marseille 2-0 in Group C.
Results: Group A: Young Boys bt Udinese 3-1; Liverpool bt Anzhi Makhachkala 1-0. Group B: Atletico Madrid bt Academica 2-1; Hapoel Tel Aviv lt to Viktoria Plzen 1-2. Group C: AEL Limassol lt to Fenerbahce 0-1; Borussia Moenchengladbach bt Olympique Marseille 2-0.
Group D: Maritimo drew Girondins Bordeaux 1-1; Newcastle United bt Club Bruges 1-0.
Group E: Steaua Bucharest bt Molde 2-0; VfB Stuttgart drew FC Copenhagen 0-0. Group F: Dnipro Dnipropetrovsk bt Napoli 3-1; PSV Eindhoven drew AIK Stockholm 1-1. Group G: Racing Genk bt Sporting 2-1; Fehervar bt Basel 2-1.
Group H: Inter Milan bt Partizan Belgrade 1-0; Rubin Kazan bt Neftchi Baku 1-0.
Group I: Olympique Lyon bt Athletic Bilbao 2-1; Sparta Prague bt Hapoel Ironi Kiryat Shmona 3-1.
Group J: Maribor drew Tottenham Hotspur 1-1; Panathinaikos drew Lazio 1-1.
Group K: Rapid Vienna lt to Bayer Leverkusen 0-4; Rosenborg Trondheim lt to Metalist Kharkiv 1-2.
Group L: Helsingborg lt to Hanover 96 1-2; Levante bt Twente Enschede 3-0.