TY - JOUR A1 - Graf, Philipp A1 - Dolzblasz, Alicja A1 - Würschum, Tobias A1 - Lenhard, Michael A1 - Pfreundt, Ulrike A1 - Laux, Thomas T1 - MGOUN1 encodes an Arabidopsis type Ib DNA topoisomerase required in stem cell regulation and to maintain develpmentally regulated gene silencing Y1 - 2010 SN - 1040-4651 ER -