Abiotic and biotic stress tolerance in Arabidopsis overexpressing the Multiprotein bridging factor 1a (MBF1a) transcriptional coactivator gene

Kim, Minjung; Lim, Gah‐Hyun; Kim, Eun-Seon; Ko, Chang-Beom; Yang, Kwang-Yeol; Jeong, Jinan; Lee, Myung Chul; Kim, Cheol Soo

doi:10.1016/j.bbrc.2006.12.212

Cited by 55 publications

(44 citation statements)

References 33 publications

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“…A recent study of MBF-transcription factor gene expression shows that MBF is involved in stress tolerance as well as in ethylene and Glc signaling (Kim et al 2007). Consistent with this report, we observed one MBF transcription factor (GenBank accession numbers: HO762735) induced during the whole stage of salt stress.…”

Section: Transcription Factorsmentioning

confidence: 98%

Gene Expression Profiles in Response to Salt Stress in Hibiscus Tiliaceus

et al. 2010

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Hibiscus tiliaceus, a mangrove associate, is an ideal plant for studying salt tolerance and adaptation since it can inhabit both inland and littoral habitats. In this study, we explored the expression profiles of H. tiliaceus under salt stress using a full-length cDNA microarray. Four hundred eighty-six salt-responsive unigenes were identified in H. tiliaceus; 224 of which had high sequence similarity to Arabidopsis. Many genes identified are known to be saltstress responsive. Furthermore we examined the physiological performance of H. tiliaceus under salt stress. Physiological analysis displayed decrease in ratio of K + / Na + and negative influence on photosynthesis of H. tiliaceus. Our study indicated that to survive under high salinine intertidal environments, H. tiliaceus evolved its own mechanisms to re-gain both ionic and osmotic homeostasis through coordinated engagement of genes associated with gene transcription, signaling, and downstream cell transport and detoxification pathways.

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Section: Transcription Factorsmentioning

confidence: 98%

Gene Expression Profiles in Response to Salt Stress in Hibiscus Tiliaceus

et al. 2010

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“…3 Several evidences relate AtMBF1 functions with tolerance to stress conditions. [4][5][6][7] Analysis of AtMBF1c overexpressing plants and null mutant unraveled the role of MBF1c during osmotic stress and thermotolerance. [5][6][7] Constitutive overexpression of AtMBF1a leads to elevated salt tolerance, insensitivity to glucose and resistance to fungal disease.…”

Section: Introductionmentioning

confidence: 99%

“…[5][6][7] Constitutive overexpression of AtMBF1a leads to elevated salt tolerance, insensitivity to glucose and resistance to fungal disease. 4 Other reports link MBF1 functions with developmental alterations, such as plant size, leaf cell expansion and ploidy levels. 8,9 In addition, a loss-of-function AtMBF1c mutant, showed a reduction on seed germination.…”

Section: Introductionmentioning

confidence: 99%

MBF1s regulate ABA-dependent germination of Arabidopsis seeds

Mauro

Iglesias

Arce

et al. 2012

Plant Signaling & Behavior

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Abbreviations: ABA, abscisic acid; abc-, Arabidopsis thaliana triple knock-down mutant for MBF1 genes; abc-+c, abc-mutant complemented with AtMBF1c gene over-expression; ABR1, absisic acid repressor; ACC, 1-aminocyclopropane-1-carboxylic acid; ERF, ethelyne responsive factor family; H 2 O 2, hydrogen peroxide; MBF1, multiprotein bridging factor 1; MV, methyl viologenTranscriptional co-activators of the multiprotein bridging factor 1 (MBF1) control gene expression by connecting transcription factors and the basal transcription machinery. In Arabidopsis thaliana functions of MBF1 genes have been related to stress tolerance and developmental alterations. Endogenous ABA plays a major role in the regulation of Arabidopsis seed dormancy and germination. Seed dormancy and ABA sensitivity are enhanced in ethylene insensitive mutants suggesting that ethylene signal transduction pathway is necessary to fully develop ABA-dependent germination. In this report we showed that a triple knock-down mutant for Arabidopsis MBF1 genes (abc-) has enhanced seed dormancy and displays hypersensitivity to exogenous ABA. In addition, higher ABA contents were detected in abc-seeds after imbibition. These evidences suggest a negative role of MBF1s genes in ABA-dependent inhibition of germination. The participation of MBF1s in ethylene signal transduction pathway is also discussed.

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“…The MBF1c (At3g24500) is specifically elevated in Arabidopsis in response to pathogen infection, salinity, drought, heat, hydrogen peroxide, and application of the plant hormones abscisic acid or salicylic acid. The MBF members are also known to participate in ethylene signaling (Kim et al 2007). Recently, Yang et al (2010) recorded that the involvement of MBF (GenBank accession numbers HO762735) in salt stress.…”

Section: Verification Of Qrt-pcr Results By In Situ Hybridizationmentioning

confidence: 99%

“…MBF is another TF family whose members found to work as transcriptional co-activators in plants. MBF members have been implicated in moisture stress tolerance in plants but detailed studies are still remained to be done (Kim et al 2007). HB genes encode transcription factors that typically switch on cascades of other genes.…”

Section: Introductionmentioning

confidence: 99%

Quantitative RT-PCR analysis of 20 transcription factor genes of MADS, ARF, HAP2, MBF and HB families in moisture stressed shoot and root tissues of sorghum

Aglawe

Fakrudin

Patole

et al. 2012

Physiol Mol Biol Plants

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Transcription factors (TFs) are an important target in understanding the regulation of plant responses to environmental stress including moisture stress. Members of the same TF family may differ in their response to moisture stress. The expression pattern could vary between shoot and root tissues depending on level of moisture stress. A set of five rarely studied TF families viz., MADS-box (MCM1, AGAMOUS, DEFICIENS and SRF), Auxin Responsive Factor (ARF), Heme Activator Protein 2 (HAP2), Multiprotein Bridging Factor (MBF) and Homeobox (HB) together having 20 members in sorghum, were expression analyzed through quantitative real-time PCR (qRT-PCR) in well watered and moisture stressed shoot and root tissues of sorghum using SYBR Green® to quantify dsDNA synthesis. Fluorescence values were used to calculate PCR efficiency by using LinRegPCR. The PTSb00029.1 and PTSb00033

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Abiotic and biotic stress tolerance in Arabidopsis overexpressing the Multiprotein bridging factor 1a (MBF1a) transcriptional coactivator gene

Cited by 55 publications

References 33 publications

Gene Expression Profiles in Response to Salt Stress in Hibiscus Tiliaceus

Gene Expression Profiles in Response to Salt Stress in Hibiscus Tiliaceus

MBF1s regulate ABA-dependent germination of Arabidopsis seeds

Quantitative RT-PCR analysis of 20 transcription factor genes of MADS, ARF, HAP2, MBF and HB families in moisture stressed shoot and root tissues of sorghum

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