Transcriptional factors play important roles in plant growth, development and responses to stresses. BBX transcriptional factors are characterized with one or two B-box domains in the protein sequence. They are comprehensively involved in photomorphogenesis, flowering, shade avoidance, signal transduction of phytohormones, biotic and abiotic stress responses in plants by regulating gene transcription and interacting with other transcription factors. The classification, structure and functions of BBX of plants are reviewed in this paper.
转录因子在调控植物生长、发育及环境适应性等方面发挥重要作用。具有B-box 结构域的一类锌指结构转录因子称为BBX，它们通过调控基因转录，与同类或其他转录因子的互作参与植物光形态建成、花发育、避荫效应、植物信号转导以及非生物和生物逆境响应等。文中从BBX 蛋白结构、分类以及其功能方面对该类转录因子在植物中的作用进行了综述。.
Keywords: B-box; flowering; photomorphogenesis; shade avoidance; stress.