GhbHLH18 negatively regulates fiber strength and length by enhancing lignin biosynthesis in cotton fibers

Gao, Zhengyin; Sun, Wenjie; Wang, Jun; Zhao, Chunyan; Zuo, Kaijing

doi:10.1016/j.plantsci.2019.05.020

Cited by 48 publications

(35 citation statements)

References 48 publications

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“…The knock-down of Lignin-like phenolics related gene (GhbHLH18) in G. hirsutum evidenced the regulation of lignin-like phenolics pathway genes including a COMT and others, during cotton ber elongation and secondary cell wall synthesis stages. The results demonstrated the roles of these genes in regulating the ligni cation in developing cotton bers (Gao et al 2019). This study has gathered important information of OMT gene family which is a forward step in research to uncover the possible functions or to support previous studies in exploration the functions of OMT genes in plant response to salt stress and in cotton ber development.…”

Section: Omts Are Involved In Plant Growth Abiotic Stress Tolerancementioning

confidence: 77%

“…The presence of lignin, which is reported at lower level in secondary cell wall of cotton bers (Fan et al 2009), negatively regulates ber elongation and secondary cell wall synthesis in cotton. Studies demonstrated that the cotton plants that accumulate less lignin and lignin-like phenolics in mature bers tend to have longer and stronger bers (Gao et al 2019). From an active perspective, lignin and phenolics defend the cellulose ber against dreadful conditions and increase the ability of response to biotic and abiotic stresses, and thus in uence the growth and strength of plant cell walls (Boerjan et al 2003).…”

Section: Introductionmentioning

confidence: 99%

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Biodiverse Responses of O-methyltransferase Genes to Salt Stress and Fiber Development of Gossypium Species

Hafeez

Gě

Zhāng

et al. 2020

Preprint

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O-methyltransferases (OMTs) are an important group of enzymes that catalyze the transfer of a methyl group from S-adenosyl-L-methionine to their acceptor substrates. OMTs are divided into several groups according to their structural features. In Gossypium species, they are involved in phenolics and flavonoid pathways. Phenolics defend the cellulose fiber from dreadful external conditions of biotic and abiotic stresses, promoting strength and growth of plant cell wall. In this study, an OMT gene family, containing a total of 192 members, has been identified and characterized in three main Gossypium species, G. hirsutum, G. arboreum and G. raimondii. Cis-regulatory elements analysis suggested important roles of OMT genes in growth, development, and defense against stresses. Transcriptome data of different fiber developmental stages in Chromosome Substitution Segment Lines (CSSLs), Recombination Inbred Lines (RILs) with excellent fiber quality, and standard genetic cotton cultivar TM-1 demonstrate that up-regulation of OMT genes at different fiber developmental stages, and abiotic stress treatments have some significant correlations with fiber quality formation, and with salt stress response. Quantitative RT-PCR results revealed that GhOMT43 and GhOMT27 genes had a specific expression in response to salt stress while GhOMT16, GhOMT55, and GhOMT33 in fiber elongation and secondary cell wall stages. Our results indicated that these genes might contribute to salt tolerance or fiber quality traits respectively in Gossypium.

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Section: Omts Are Involved In Plant Growth Abiotic Stress Tolerancementioning

confidence: 77%

Section: Introductionmentioning

confidence: 99%

Biodiverse Responses of O-methyltransferase Genes to Salt Stress and Fiber Development of Gossypium Species

Hafeez

Gě

Zhāng

et al. 2020

Preprint

View full text Add to dashboard Cite

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“…GhFP1 (a bHLH gene) as a positive regulator participates in controlling ber elongation by activating BR biosynthesis and signaling transduction [58]. GhbHLH18 is negatively associated with ber strength and length by activating peroxidase-mediated lignin metabolism [59]. In summary, members of the bHLH family not only regulate trichome or ber initiation, but also control lint ber elongation and quality.…”

Section: Major Transcription Factors Involved In Ber Developmentmentioning

confidence: 99%

Transcriptome analysis reveals gene expression associated with fuzz fiber initiation regulated by high-temperature in Gossypium barbadense

Cheng

Longyan

Wei

et al. 2020

Preprint

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Background: Gossypium barbadense L. is the most important renewable source of textile fiber. Cotton fiber cell initiation and elongation are often affected by various environmental stimulus, such as high temperature. However, little is known about the underlying mechanisms of temperature regulating the fuzz fiber initiation.Results: In the present study, phenotypic observation revealed that high temperature (HT) accelerated the fiber development, improved fiber quality and induced fuzz fiber initiation. It has been proved that the fuzz fiber initiation was inhibited by low temperature (LT), and 4 days post-anthesis (DPA) was the key stage for fuzz fiber initiation. Based on comparative transcriptome analysis, a total of 43,826 differentially expressed genes (DEGs) were identified, of which 9,667 were involved in both fiber development and temperature response with 901 transcription factor genes and 189 genes related to plant hormone signal transduction. Further analysis of gene expression patterns revealed that 240 genes were involved in fuzz fiber initiation. Functional annotation revealed that the candidate genes related to fuzz initiation were significantly involved in asparagine biosynthetic process, cell wall biosynthesis and stress response. Furthermore, the expression trends of sixteen selected genes from the RNA-seq data were almost consistent with the results of qRT-PCR results.Conclusions: Our study revealed several potential candidate genes and pathways that related to fuzz fiber initiation induced by high-temperature and provided a new view of temperature-induced tissue and organ development in Gossypium barbadense.

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“…It provides strength to plant cell wall and response to biotic and abiotic stresses in vascular plants [5].The presence of lignin, which is reported at lower level in secondary cell wall of cotton bers [6], negatively regulates ber elongation and secondary cell wall synthesis in cotton. Studies demonstrated that the cotton plants that accumulate less lignin and lignin-like phenolics in mature bers tend to have longer and stronger bers [7].From an active perspective, lignin and phenolics defend the cellulose ber against dreadful conditions and increase the ability of response to biotic and abiotic stresses, and thus in uence the growth and strength of plant cell walls [8]. Previous studies in herbaceous plants demonstrated the involvement of O-methyltransferases (OMTs) in lignin biosynthesis [9].…”

Section: Introductionmentioning

confidence: 99%

Multi-responses of O-methyltransferase genes to salt stress and fiber development of Gossypium species

Hafeez

Gě

Zhāng

et al. 2020

Preprint

View full text Add to dashboard Cite

Background: O-methyltransferases (OMTs) are an important group of enzymes that catalyze the transfer of a methyl group from S-adenosyl-L-methionine to their acceptor substrates. OMTs are divided into several groups according to their structural features. In Gossypium species, they are involved in phenolics and flavonoid pathways. Phenolics defend the cellulose fiber from dreadful external conditions of biotic and abiotic stresses, promoting strength and growth of plant cell wall. Results: An OMT gene family, containing a total of 192 members, has been identified and characterized in three main Gossypium species, G. hirsutum, G. arboreum and G. raimondii. Cis-regulatory elements analysis suggested important roles of OMT genes in growth, development, and defense against stresses. Transcriptome data of different fiber developmental stages in Chromosome Substitution Segment Lines (CSSLs), Recombination Inbred Lines (RILs) with excellent fiber quality, and standard genetic cotton cultivar TM-1 demonstrate that up-regulation of OMT genes at different fiber developmental stages, and abiotic stress treatments have some significant correlations with fiber quality formation, and with salt stress response. Quantitative RT-PCR results revealed that GhOMT10_Dt and GhOMT70_At genes had a specific expression in response to salt stress while GhOMT49_At, GhOMT49_Dt, and GhOMT48_At in fiber elongation and secondary cell wall stages. Conclusions: Our results indicate that O-methyltransferase genes have multi-responses to salt stress and fiber development in Gossypium species and that they may contribute to salt tolerance or fiber quality formation in Gossypium.

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GhbHLH18 negatively regulates fiber strength and length by enhancing lignin biosynthesis in cotton fibers

Cited by 48 publications

References 48 publications

Biodiverse Responses of O-methyltransferase Genes to Salt Stress and Fiber Development of Gossypium Species

Biodiverse Responses of O-methyltransferase Genes to Salt Stress and Fiber Development of Gossypium Species

Transcriptome analysis reveals gene expression associated with fuzz fiber initiation regulated by high-temperature in Gossypium barbadense

Multi-responses of O-methyltransferase genes to salt stress and fiber development of Gossypium species

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