A carrot G-box binding factor-type basic region/leucine zipper factor DcBZ1 is involved in abscisic acid signal transduction in somatic embryogenesis

Shiota, Hajime; Ko, Suk-Min; Wada, Shinko; Otsu, Cláudia Tomiko; Tanaka, Ichiro; Kamada, Hiroshi

doi:10.1016/j.plaphy.2008.02.010

Cited by 18 publications

(10 citation statements)

References 41 publications

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“…Among all members in all plant species, just a small number of bZIP genes have been functionally characterized. Plant bZIP proteins have been found to regulate the integration and development of many organs and tissues, including seed maturation and germination [9,10], floral induction and development [11-18], vascular development [19], embryogenesis [20,21] and photomorphogenesis [22,23]. They have also been found to be involved in responses to a variety of abiotic/biotic stimuli, such as drought [24,25], high salinity [26], heat stress [27], cold stress [28,29], pathogen infection [30], and hormone signaling, such as abscisic acid (ABA) [25,31,32], ethylene [33] and light signaling [34].…”

Section: Introductionmentioning

confidence: 99%

Genome-wide analysis and expression profile of the bZIP transcription factor gene family in grapevine (Vitis vinifera)

et al. 2014

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BackgroundBasic leucine zipper (bZIP) transcription factor gene family is one of the largest and most diverse families in plants. Current studies have shown that the bZIP proteins regulate numerous growth and developmental processes and biotic and abiotic stress responses. Nonetheless, knowledge concerning the specific expression patterns and evolutionary history of plant bZIP family members remains very limited.ResultsWe identified 55 bZIP transcription factor-encoding genes in the grapevine (Vitis vinifera) genome, and divided them into 10 groups according to the phylogenetic relationship with those in Arabidopsis. The chromosome distribution and the collinearity analyses suggest that expansion of the grapevine bZIP (VvbZIP) transcription factor family was greatly contributed by the segment/chromosomal duplications, which may be associated with the grapevine genome fusion events. Nine intron/exon structural patterns within the bZIP domain and the additional conserved motifs were identified among all VvbZIP proteins, and showed a high group-specificity. The predicted specificities on DNA-binding domains indicated that some highly conserved amino acid residues exist across each major group in the tree of land plant life. The expression patterns of VvbZIP genes across the grapevine gene expression atlas, based on microarray technology, suggest that VvbZIP genes are involved in grapevine organ development, especially seed development. Expression analysis based on qRT-PCR indicated that VvbZIP genes are extensively involved in drought- and heat-responses, with possibly different mechanisms.ConclusionsThe genome-wide identification, chromosome organization, gene structures, evolutionary and expression analyses of grapevine bZIP genes provide an overall insight of this gene family and their potential involvement in growth, development and stress responses. This will facilitate further research on the bZIP gene family regarding their evolutionary history and biological functions.

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Section: Introductionmentioning

confidence: 99%

Genome-wide analysis and expression profile of the bZIP transcription factor gene family in grapevine (Vitis vinifera)

et al. 2014

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“…Seventy-five bZIP genes have been found in Arabidopsis (Arabidopsis thaliana) (Jakoby et al, 2002), 55 in grapevine (Vitis vinifera) (Liu et al, 2014), 89 in rice (Oryza sativa) (Nijhawan et al, 2007), 131 in soybean (Glycine max) (Liao et al, 2008), 92 in Sorghum (Sorghum vulgare) , and 125 in maize (Zea mays) (Wei et al, 2012). Plant bZIP proteins have been found to regulate the integration and development of many organs and tissues, including seed maturation and germination (Izawa et al, 1994;Toh et al, 2012), floral induction and development (Abe, 2005;Iven et al, 2010;Wigge, 2005), vascular development (Yin et al, 1997), embryogenesis (Guan et al, 2009;Shiota et al, 2008) and photomorphogenesis (Holm, 2002;Huang et al, 2012). They have also been found to be involved in responses to a variety of abiotic/biotic stimuli, for example, the expression of OSBZ8 in rice is strongly induced by ABA and positively correlated with salt resistance (Mukherjee et al, 2006), LIP19 functions as a molecular switch for low-temperature signal transduction in rice (Shimizu, 2005), the tobacco (Nicotiana tabacum) TGA factor has been shown to participate in plant defense responses upon attack of a variety of pathogens (Thurow et al, 2005), ATB2 has been shown to participate in both sucrose-specific sugar sensing and the signaling system associated with the transport and utilization of metabolites in Arabidopsis (Rook et al, 1998) and HY5 mediates light response in Arabidopsis (Toh et al, 2012).…”

Section: Introductionmentioning

confidence: 99%

Genome-wide identification, expression profiling, and SSR marker development of the bZIP transcription factor family in Medicago truncatula

Zhang

Liu

et al. 2015

Biochemical Systematics and Ecology

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“…Another member of the G group, DcBZ1, encoding a G-box binding factor (GBF)-type bZIP factor, was isolated from carrot somatic embryos. The expression pattern of DcBZ1 showed that it is involved in ABA signal transduction during embryogenesis, and in other vegetative tissues (Shiota et al, 2008). These observations suggest that both CAREB1 and CAREB2 proteins contain a typical bZIP DNA binding motif, but the sequences aside from the conserved domains may associate them with different functions, and indicate their involvement in different signal transduction pathways.…”

Section: Discussionmentioning

confidence: 86%

“…Another member of the G group, DcBZ1, encoding a G‐box binding factor (GBF)‐type bZIP factor, was isolated from carrot somatic embryos. The expression pattern of DcBZ1 showed that it is involved in ABA signal transduction during embryogenesis, and in other vegetative tissues (Shiota et al. , 2008).…”

Section: Discussionmentioning

confidence: 99%

Identification and characterization of bZIP‐type transcription factors involved in carrot (Daucus carota L.) somatic embryogenesis

et al. 2009

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SUMMARYSeed dormancy is an important adaptive trait that enables seeds of many species to remain quiescent until conditions become favorable for germination. Abscisic acid (ABA) plays an important role in these developmental processes. Like dormancy and germination, the elongation of carrot somatic embryo radicles is retarded by sucrose concentrations at or above 6%, and normal growth resumes at sucrose concentrations below 3%. Using a yeast one-hybrid screening system, we isolated two bZIP-type transcription factors, CAREB1 and CAREB2, from a cDNA library prepared from carrot somatic embryos cultured in a high-sucrose medium. Both CAREB1 and CAREB2 were localized to the nucleus, and specifically bound to the ABA response element (ABRE) in the Dc3 promoter. Expression of CAREB2 was induced in seedlings by drought and exogenous ABA application; whereas expression of CAREB1 increased during late embryogenesis, and reduced dramatically when somatic embryos were treated with fluridone, an inhibitor of ABA synthesis. Overexpression of CAREB1 caused somatic embryos to develop slowly when cultured in low-sucrose medium, and retarded the elongation of the radicles. These results indicate that CAREB1 and CAREB2 have similar DNA-binding activities, but play different roles during carrot development. Our results indicate that CAREB1 functions as an important trans-acting factor in the ABA signal transduction pathway during carrot somatic embryogenesis.

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A carrot G-box binding factor-type basic region/leucine zipper factor DcBZ1 is involved in abscisic acid signal transduction in somatic embryogenesis

Cited by 18 publications

References 41 publications

Genome-wide analysis and expression profile of the bZIP transcription factor gene family in grapevine (Vitis vinifera)

Genome-wide analysis and expression profile of the bZIP transcription factor gene family in grapevine (Vitis vinifera)

Genome-wide identification, expression profiling, and SSR marker development of the bZIP transcription factor family in Medicago truncatula

Identification and characterization of bZIP‐type transcription factors involved in carrot (Daucus carota L.) somatic embryogenesis

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