Overexpression of the MYB37 transcription factor enhances abscisic acid sensitivity, and improves both drought tolerance and seed productivity in Arabidopsis thaliana

Yu, Yongtao; Wu, Zhiyong; Lü, Kai; Bi, Chao; Liang, Shan; Wang, Xiaofang; Zhang, David

doi:10.1007/s11103-015-0411-1

Cited by 50 publications

(30 citation statements)

References 79 publications

(126 reference statements)

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“…The main TFs in this network include MYB, bHLH, bZIP, ERF, NAC, and WRKY etc. Moreover, overexpression of some of drought stress responsive TFs have been shown to confer drought tolerance (Hong et al, 2016; Yu et al, 2016). At the cellular level, plants respond to drought with changes in gene expression which lead to several other modifications at transcriptional and translational modifications, accumulation of osmo-protectants, enhanced water uptake (e.g., Aquaporin), reduction in transpirational water loss, strong antioxidants, heat shock proteins (hsps) and other stress tolerance proteins like dehydrin, metabolite abundances etc.…”

Section: Introductionmentioning

confidence: 99%

Transcriptomic Changes of Drought-Tolerant and Sensitive Banana Cultivars Exposed to Drought Stress

et al. 2016

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In banana, drought responsive gene expression profiles of drought-tolerant and sensitive genotypes remain largely unexplored. In this research, the transcriptome of drought-tolerant banana cultivar (Saba, ABB genome) and sensitive cultivar (Grand Naine, AAA genome) was monitored using mRNA-Seq under control and drought stress condition. A total of 162.36 million reads from tolerant and 126.58 million reads from sensitive libraries were produced and mapped onto the Musa acuminata genome sequence and assembled into 23,096 and 23,079 unigenes. Differential gene expression between two conditions (control and drought) showed that at least 2268 and 2963 statistically significant, functionally known, non-redundant differentially expressed genes (DEGs) from tolerant and sensitive libraries. Drought has up-regulated 991 and 1378 DEGs and down-regulated 1104 and 1585 DEGs respectively in tolerant and sensitive libraries. Among DEGs, 15.9% are coding for transcription factors (TFs) comprising 46 families and 9.5% of DEGs are constituted by protein kinases from 82 families. Most enriched DEGs are mainly involved in protein modifications, lipid metabolism, alkaloid biosynthesis, carbohydrate degradation, glycan metabolism, and biosynthesis of amino acid, cofactor, nucleotide-sugar, hormone, terpenoids and other secondary metabolites. Several, specific genotype-dependent gene expression pattern was observed for drought stress in both cultivars. A subset of 9 DEGs was confirmed using quantitative reverse transcription-PCR. These results will provide necessary information for developing drought-resilient banana plants.

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Section: Introductionmentioning

confidence: 99%

Transcriptomic Changes of Drought-Tolerant and Sensitive Banana Cultivars Exposed to Drought Stress

et al. 2016

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“…D+ABA10, D+ABA20, and D+ABA40 indicate 10, 20, and 40 μmol•L -1 ABA treatments under drought stress, respectively. thereby reducing water loss and improving the water retention capacity of plants under drought conditions (Chen et al 2006, Yu et al 2016a. However, the closure of stomata also causes a decrease in the intercellular CO2 concentration, resulting in a decline in photosynthetic capacity (Kano et al 2011).…”

Section: Discussionmentioning

confidence: 99%

Special issue in honour of Prof. Reto J. Strasser - Effects of exogenous abscisic acid on the photosynthetic function and reactive oxygen species metabolism of tobacco leaves under drought stress

Zhang¹,

Xu²,

Li³

et al. 2020

Photosynt.

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In this study, water solutions with different concentrations of abscisic acid (ABA) (10, 20, and 40 μmol L-1) were sprayed on leaves of drought-stressed tobacco seedlings. The results showed that under drought stress, both water content and photosynthetic carbon assimilation ability were reduced, PSII activity was also inhibited. Drought stress also led to the outbreak of reactive oxygen species in tobacco leaves and increased the degree of membrane peroxidation. However, spraying exogenous ABA significantly alleviated the damage caused by drought stress on the leaves. The potential mechanisms by which drought resistance in tobacco is improved by spraying exogenous ABA include: (1) regulation of the stomatal limitation of leaves, which is beneficial to water retention ability and can enhance photosynthetic function; (2) reduction of the energy pressure of the PSII reaction center by increasing nonphotochemical quenching (NPQ); and (3) effective reduction of the production of reactive oxygen species in the leaves and reducing the degree of membrane peroxidation.

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“…In Arabidopsis, overexpression of AtMYB37 could increase seed yield and tolerance of transgenic plants against drought stresses [112]. In sugarcane, an MYB TF gene PScMYBAS1 promoter was involved in positive regulation under abiotic stresses (dehydration, salt, cold and wounding) and hormone (SA and MeJA) treatments [113].…”

Section: Function and Expression Pattern Of Myb Tfs Under Abiotic Strmentioning

confidence: 99%

Transcription Factors in Plant Stress Responses: Challenges and Potential for Sugarcane Improvement

Javed

Shabbir

Ali

et al. 2020

Plants

149

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Increasing vulnerability of crops to a wide range of abiotic and biotic stresses can have a marked influence on the growth and yield of major crops, especially sugarcane (Saccharum spp.). In response to various stresses, plants have evolved a variety of complex defense systems of signal perception and transduction networks. Transcription factors (TFs) that are activated by different pathways of signal transduction and can directly or indirectly combine with cis-acting elements to modulate the transcription efficiency of target genes, which play key regulators for crop genetic improvement. Over the past decade, significant progresses have been made in deciphering the role of plant TFs as key regulators of environmental responses in particular important cereal crops; however, a limited amount of studies have focused on sugarcane. This review summarizes the potential functions of major TF families, such as WRKY, NAC, MYB and AP2/ERF, in regulating gene expression in the response of plants to abiotic and biotic stresses, which provides important clues for the engineering of stress-tolerant cultivars in sugarcane.

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Overexpression of the MYB37 transcription factor enhances abscisic acid sensitivity, and improves both drought tolerance and seed productivity in Arabidopsis thaliana

Cited by 50 publications

References 79 publications

Transcriptomic Changes of Drought-Tolerant and Sensitive Banana Cultivars Exposed to Drought Stress

Transcriptomic Changes of Drought-Tolerant and Sensitive Banana Cultivars Exposed to Drought Stress

Special issue in honour of Prof. Reto J. Strasser - Effects of exogenous abscisic acid on the photosynthetic function and reactive oxygen species metabolism of tobacco leaves under drought stress

Transcription Factors in Plant Stress Responses: Challenges and Potential for Sugarcane Improvement

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