Role of Homeodomain Leucine Zipper (HD-Zip) IV Transcription Factors in Plant Development and Plant Protection from Deleterious Environmental Factors

被引：75
作者：
Chew, William [1 ]
Hrmova, Maria [1 ]
Lopato, Sergiy [1 ]
机构：
[1] Univ Adelaide, Australian Ctr Plant Funct Genom, Glen Osmond, SA 5064, Australia
来源：
INTERNATIONAL JOURNAL OF MOLECULAR SCIENCES | 2013年 / 14卷 / 04期
基金：
澳大利亚研究理事会;
关键词：
homeodomain; protein-DNA interactions; L1 cell layer; epidermis; cuticle; EPIDERMAL-CELL DIFFERENTIATION; CONFERS DROUGHT TOLERANCE; LATE-FLOWERING PHENOTYPE; FAMILY HOMEOBOX GENE; LAYER-SPECIFIC GENE; EVOLUTIONARY CONSERVATION; EXPRESSION PATTERNS; WAX ACCUMULATION; DISTINCT ROLES; TARGET GENES;
D O I：
10.3390/ijms14048122
中图分类号：
Q5 [生物化学]; Q7 [分子生物学];
学科分类号：
071010 ; 081704 ;
摘要：
Homeobox genes comprise an important group of genes that are responsible for regulation of developmental processes. These genes determine cell differentiation and cell fate in all eukaryotic organisms, starting from the early stages of embryo development. Homeodomain leucine zipper (HD-Zip) transcription factors are unique to the plant kingdom. Members of the HD-Zip IV subfamily have a complex domain topology and can bind several cis-elements with overlapping sequences. Many of the reported HD-Zip IV genes were shown to be specifically or preferentially expressed in plant epidermal or sub-epidermal cells. HD-Zip IV TFs were found to be associated with differentiation and maintenance of outer cell layers, and regulation of lipid biosynthesis and transport. Insights about the role of these proteins in plant cuticle formation, and hence their possible involvement in plant protection from pathogens and abiotic stresses has just started to emerge. These roles make HD-Zip IV proteins an attractive tool for genetic engineering of crop plants. To this end, there is a need for in-depth studies to further clarify the function of each HD-Zip IV subfamily member in commercially important plant species.
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收藏
页码：8122 / 8147
页数：26
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