Activator- and repressor-type MYB transcription factors are involved in chilling injury induced flesh lignification in loquat via their interactions with the phenylpropanoid pathway

Xu, Qian; X, Yin; Zeng, Jiaoke; Ge, Hang; Song, Min; Xu, Changjie; Li, Xian; Ferguson, Ian B.; Chen, Kunsong

doi:10.1093/jxb/eru208

Cited by 149 publications

(196 citation statements)

References 51 publications

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“…4). These results, once again, confirmed previous results (Cai et al, 2006c;Xu et al, 2014), showing HT is an effective treatment to reduce loquat fruit lignification, as with previously reported treatments, such as MeJA, acetylsalicylic acid, and low temperature conditioning (LTC) (Cai et al, 2006c,d,d;Cao et al, 2010;Rui et al, 2010).…”

Section: Gene Expression Of Ejnac Genes In Various Tissues and In Ressupporting

confidence: 91%

“…Alignment was performed using the neighbor-joining (NJ) method in ClustalX (v. 1.81) and a phylogenetic tree was constructed with online software Figtree (http://tree.bio.ed.ac.uk/software/figtree/). The promoters of lignin biosynthesis genes from loquat and Arabidopsis were isolated and described in our previous work (Xu et al, 2014). Identity analysis was undertaken at the website http://www.ebi.…”

Section: Gene Isolationmentioning

confidence: 99%

“…The EjNACs ORF were inserted in frame into the NotI and SpeI sites of pGreen II 0029 62-SK vector driven by the cauliflower mosaic virus 35S (CaMV35S) promoter. pGreen II 0800-LUC with promoter was constructed in previous work (Xu et al, 2014). All constructs were electroporated into Agrobacterium tumefaciens GV3101.…”

Section: Dual-luciferase Assaymentioning

confidence: 99%

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A NAC transcription factor, EjNAC1 , affects lignification of loquat fruit by regulating lignin

Wang

Zeng

et al. 2015

Postharvest Biology and Technology

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Section: Gene Expression Of Ejnac Genes In Various Tissues and In Ressupporting

confidence: 91%

Section: Gene Isolationmentioning

confidence: 99%

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A NAC transcription factor, EjNAC1 , affects lignification of loquat fruit by regulating lignin

Wang

Zeng

et al. 2015

Postharvest Biology and Technology

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“…In addition to transcriptional activators, several transcriptional suppressors (Nakano et al 2015;Xu et al 2014;Ye and Zhong 2015;Yoon et al 2015) are known to regulate lignin biosynthesis. Downregulation of these suppressors is likely to induce upregulation of lignin biosynthesis.…”

Section: Discussionmentioning

confidence: 99%

MYB-mediated upregulation of lignin biosynthesis in <i>Oryza sativa</i> towards biomass refinery

Koshiba

Yamamoto

Tobimatsu

et al. 2017

Plant Biotechnology

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Lignin encrusts lignocellulose polysaccharides, and has long been considered an obstacle for the efficient use of polysaccharides during processes such as pulping and bioethanol fermentation. However, lignin is also a potential feedstock for aromatic products and is an important by-product of polysaccharide utilization. Therefore, producing biomass plant species exhibiting enhanced lignin production is an important breeding objective. Herein, we describe the development of transgenic rice plants with increased lignin content. Five Arabidopsis thaliana (Arabidopsis) and one Oryza sativa (rice) MYB transcription factor genes that were implicated to be involved in lignin biosynthesis were transformed into rice (O. sativa L. ssp. japonica cv. Nipponbare). Among them, three Arabidopsis MYBs (AtMYB55, AtMYB61, and AtMYB63) in transgenic rice T 1 lines resulted in culms with lignin content about 1.5-fold higher than that of control plants. Furthermore, lignin structures in AtMYB61-overexpressing rice plants were investigated by wet-chemistry and two-dimensional nuclear magnetic resonance spectroscopy approaches. Our data suggested that heterologous expression of AtMYB61 in rice increased lignin content mainly by enriching syringyl units as well as p-coumarate and tricin moieties in the lignin polymers. We contemplate that this strategy is also applicable to lignin upregulation in large-sized grass biomass plants, such as Sorghum, switchgrass, Miscanthus and Erianthus.

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“…The biosynthesis of anthocyanin is regulated by transcription factors such as HY5, R2R3-MYB and the MYB-bHLH-WD40 (MBW) complex, which control the expression of early or late biosynthetic genes (Chattopadhyay et al 1998;Koes et al 2005;Maier et al 2013;Shin et al 2013;Li 2014). MYB-related transcription factor genes that regulate flavonoid biosynthesis and metabolism have been isolated from many species, including Arabidopsis, tobacco, apple, grape and loquat (Espley et al 2007;Matus et al 2009;Dubos et al 2010;Liu et al 2013;Medina-Puche et al 2014;Xu et al 2014b). Our lab recently identified the Malus crabapple transcription factor McMYB10, which regulates anthocyanin accumulation in petals partially through transcriptional regulation of its downstream genes (Jiang et al 2014).…”

Section: Introductionmentioning

confidence: 99%

Photoperiod and shading regulate coloration and anthocyanin accumulation in the leaves of malus crabapples

Zhang

Meng

et al. 2015

Plant Cell Tiss Organ Cult

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In many ornamental plants, anthocyanin accumulation in leaves is a critical determinant of foliage coloration. However, the mechanism by which photoperiod and shading affect coloration and anthocyanin accumulation in the leaves of woody plants is less clear. By examining the leaves and calli of crabapple (Malus spp.) cultivars with different leaf color characteristics, we analyzed the foliage coloration, flavonoid contents, and expression levels of anthocyanin biosynthetic genes and the McMYB10 transcription factor under different photoperiods and shading treatments. The red color parameters, flavonoid contents, and expression levels of some anthocyaninrelated genes in both the leaf and callus were generally higher under sun-exposure or long-day treatments compared to shading or short-day treatments. These data indicate that red color formation in cultivars with leaves that are naturally red requires a suitable photoperiod and light intensity; high light intensity or long-day conditions activate anthocyanin biosynthesis-related genes, leading to anthocyanin accumulation. Our results also indicate that the regulation of anthocyanin biosynthetic metabolism in response to light conditions differs between red-leafed and green-leafed cultivars. Taken together, our data reveal that photoperiod and light intensity are important in the regulation of pigmentation and anthocyanin accumulation in crabapple leaves and calli. Moreover, we provide a useful approach for studying and inducing the production of flavonoids by crabapple callus culture under certain photoperiods.

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Activator- and repressor-type MYB transcription factors are involved in chilling injury induced flesh lignification in loquat via their interactions with the phenylpropanoid pathway

Abstract: SummaryTwo novel MYB transcription factors are involved in lignin biosynthesis and flesh lignification in loquat fruit, which are manipulated by temperature condition and treatments.

Cited by 149 publications

References 51 publications

A NAC transcription factor, EjNAC1 , affects lignification of loquat fruit by regulating lignin

A NAC transcription factor, EjNAC1 , affects lignification of loquat fruit by regulating lignin

MYB-mediated upregulation of lignin biosynthesis in <i>Oryza sativa</i> towards biomass refinery

Photoperiod and shading regulate coloration and anthocyanin accumulation in the leaves of malus crabapples

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