LOB Domain Proteins: Beyond Lateral Organ Boundaries.

Changzheng Xu, Feng Luo, Frank Hochholdinger

Journal: Trends in plant science 2016;21(2):159-167

PMID: 26616195

Full Text on Elsevier Science View on PubMed

Abstract

LATERAL ORGAN BOUNDARIES DOMAIN (LBD) proteins defined by a conserved LATERAL ORGAN BOUNDARIES (LOB) domain are key regulators of plant organ development. Recent studies have expanded their functional diversity beyond the definition of lateral organ boundaries to pollen development, plant regeneration, photomorphogenesis, pathogen response, and specific developmental functions in non-model plants, such as poplar and legumes. The identification of a range of upstream regulators, protein partners, and downstream targets of LBD family members has unraveled the molecular networks of LBD-dependent processes. Moreover, it has been demonstrated that LBD proteins have essential roles in integrating developmental changes in response to phytohormone signaling or environmental cues. As we discuss here, these novel discoveries of LBD functions and their molecular contexts promote a better understanding of this plant-specific transcription factor family.

Address: Southwest University, College of Environment and Resources, Research Centre of Bioenergy and Bioremediation (RCBB), 400715 Chongqing, China; Southwest University, College of Environment and Resources, Centre of Excellence for Soil Biology (CRE), 400715, Chongqing, China. Electronic address: [email protected].; Southwest University, College of Environment and Resources, Research Centre of Bioenergy and Bioremediation (RCBB), 400715 Chongqing, China.; University of Bonn, Institute of Crop Science and Resource Conservation (INRES), Division of Crop Functional Genomics, 53113 Bonn, Germany. Electronic address: [email protected].

DOI: 10.1016/j.tplants.2015.10.010

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MeSH Terms: Organ Specificity, Plant Development, Plant Proteins, Protein Binding, Protein Structure, Tertiary