Transcription factor that acts as a repressor of reproductive development, meristem size and plant growth (PubMed:27402171). Acts as a transcriptional repressor in inflorescence tissues (PubMed:27402171). Interacts with well known regulators of meristem and gynoecium development such as WUS, HEC1, KNAT1, KNAT2, HAT1, BEL1 and NGA1 (PubMed:27402171). Acts as positive regulator of JAG and OFP1 expression in developing gynoecia (PubMed:27402171). Interacts with WUS, HEC1, KNAT1, KNAT2, HAT1, BEL1, and NGA1. Expressed in inflorescence meristem, floral organ primordia, gynoecia, ovules and carpel margin meristem. Increased size of rosette leaves, increased plant height, increased number of floral buds and increased length of siliques. Plants overexpressing BZIP29 exhibit altered reproductive development, such as a reduction in the number of floral buds, reduction in ovule production with underdeveloped transmitting tract and altered or aborted development of ovules.