AtCSLD3 and GhCSLD3 mediate root growth and cell elongation downstream of the ethylene response pathway in Arabidopsis

Hu, Huizhen; Zhang, Ran; Dong, Shuchao; Liu, Ying; Fan, Chunfen; Wang, Yanting; Xia, Tao; Chen, Peng; Wang, Lingqiang; Feng, Shengqiu; Persson, Staffan; Peng, Liangcai

doi:10.1093/jxb/erx470

Cited by 28 publications

(20 citation statements)

References 80 publications

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“…Ethylene promotes root hair growth by regulating ethylene insensitive 3 (EIN3) and root hair defective (RHD6) activity in Arabidopsis (Feng et al., 2017). Recently, cellulose synthase-like D3 ( AtCSLD3 ) in Arabidopsis and GhCSLD3 in cotton were found to act downstream of ethylene to mediate root growth and cell elongation (Hu et al., 2018).…”

Section: Ethylene Regulates Fiber Cell Elongationmentioning

confidence: 99%

A Pivotal Role of Hormones in Regulating Cotton Fiber Development

2019

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Cotton is the main source of renewable fiber in the world and is primarily used for textile production. Cotton fibers are single cells differentiated from the ovule epidermis and are an excellent model system for studying cell elongation, polyploidization, and cell wall biosynthesis. Plant hormones, which are present in relatively low concentrations, play important roles in various developmental processes, and recently, multiple reports have revealed the pivotal roles of hormones in regulating cotton fiber development. For example, exogenous application of hormones has been shown to promote the initiation and growth of fiber cells. However, a comprehensive understanding about phytohormone regulating fiber development is still unknown. Here, we focus on recent advances in elucidating the roles of multiple phytohormones in the control of fiber development, namely auxin, gibberellin, brassinosteroid, ethylene, cytokinin, abscisic acid, and strigolactones. We not only review the identification of genes involved in hormone biosynthetic and signaling pathways but also discuss the mechanisms of these phytohormones in regulating the initiation and elongation of fiber cells in cotton. Auxin, gibberellin, brassinosteroid, ethylene, jasmonic acid, and strigolactones play positive roles in fiber development, whereas cytokinin and abscisic acid inhibit fiber growth. Our aim is to provide a comprehensive review of the role of phytohormones in cotton fiber development that will serve as the basis for further elucidation of the mechanisms by which plant hormones regulate fiber growth.

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Section: Ethylene Regulates Fiber Cell Elongationmentioning

confidence: 99%

A Pivotal Role of Hormones in Regulating Cotton Fiber Development

2019

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“…The plant cell wall consists of polysaccharides (cellulose, hemicellulose and pectin), proteins and other compounds. It plays critical roles in the maintenance of cell integrity, and the regulation of many developmental processes in plants [ 1 , 2 , 3 , 4 , 5 , 6 ]. The cell wall represents not only a mechanical barrier, but also a signaling component during plant responses to various biotic [ 7 , 8 ] and abiotic stresses [ 9 , 10 ].…”

Section: Introductionmentioning

confidence: 99%

“…Plant Csl genes play substantial roles in developmental processes, such as root hair formation [ 6 ], the control of organ size [ 4 ], tiller number [ 3 ] and the maintenance of adherent mucilage structure [ 1 , 2 , 5 ]. Csl genes were also reported to be involved in plant resistance/tolerance to biotic or abiotic stresses, such as salt [ 35 , 36 ], boron (B) [ 37 , 38 ] or heavy metal [ 36 , 39 ] stress, as well as pathogen infection [ 32 , 40 , 41 ].…”

Section: Introductionmentioning

confidence: 99%

Genome-Wide Identification of Banana Csl Gene Family and Their Different Responses to Low Temperature between Chilling-Sensitive and Tolerant Cultivars

Yuan

Liu

Takáč

et al. 2021

Plants

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The cell wall plays an important role in responses to various stresses. The cellulose synthase-like gene (Csl) family has been reported to be involved in the biosynthesis of the hemicellulose backbone. However, little information is available on their involvement in plant tolerance to low-temperature (LT) stress. In this study, a total of 42 Csls were identified in Musa acuminata and clustered into six subfamilies (CslA, CslC, CslD, CslE, CslG, and CslH) according to phylogenetic relationships. The genomic features of MaCsl genes were characterized to identify gene structures, conserved motifs and the distribution among chromosomes. A phylogenetic tree was constructed to show the diversity in these genes. Different changes in hemicellulose content between chilling-tolerant and chilling-sensitive banana cultivars under LT were observed, suggesting that certain types of hemicellulose are involved in LT stress tolerance in banana. Thus, the expression patterns of MaCsl genes in both cultivars after LT treatment were investigated by RNA sequencing (RNA-Seq) technique followed by quantitative real-time PCR (qPCR) validation. The results indicated that MaCslA4/12, MaCslD4 and MaCslE2 are promising candidates determining the chilling tolerance of banana. Our results provide the first genome-wide characterization of the MaCsls in banana, and open the door for further functional studies.

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“…However, another transcript encoding a protein showing homology to the Arabidopsis cellulose synthase-like D 3, AtCLSD3 ( GRMZM2G367267_T01 , Table S3) was repressed. AtCLSD3 plays a role in root growth and cell elongation in response to phosphate (Pi) starvation [33] suggesting an involvement of different cellulase genes on root morphology in a nutrient-specific way. Taken together, these results reinforce the hypothesis that the N deprivation could cause a negative impairment of molecular mechanism linked to the root elongation zone whilst positive effects on processes that occurs in the root differentiation zone.…”

Section: Resultsmentioning

confidence: 99%

Nitrogen Starvation Differentially Influences Transcriptional and Uptake Rate Profiles in Roots of Two Maize Inbred Lines with Different NUE

Mascia

Sega

Zamboni

et al. 2019

IJMS

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Nitrogen use efficiency (NUE) of crops is estimated to be less than 50%, with a strong impact on environment and economy. Genotype-dependent ability to cope with N shortage has been only partially explored in maize and, in this context, the comparison of molecular responses of lines with different NUE is of particular interest in order to dissect the key elements underlying NUE. Changes in root transcriptome and NH4+/NO3− uptake rates during growth (after 1 and 4 days) without N were studied in high (Lo5) and low (T250) NUE maize inbred lines. Results suggests that only a small set of transcripts were commonly modulated in both lines in response to N starvation. However, in both lines, transcripts linked to anthocyanin biosynthesis and lateral root formation were positively affected. On the contrary, those involved in root elongation were downregulated. The main differences between the two lines reside in the ability to modulate the transcripts involved in the transport, distribution and assimilation of mineral nutrients. With regard to N mineral forms, only the Lo5 line responded to N starvation by increasing the NH4+ fluxes as supported by the upregulation of a transcript putatively involved in its transport.

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AtCSLD3 and GhCSLD3 mediate root growth and cell elongation downstream of the ethylene response pathway in Arabidopsis

Abstract: CSLD3 overexpression enhances root and hypocotyl growth by increasing cell elongation; CSLD3-mediated hypocotyl elongation is independent of ethylene signaling.

Cited by 28 publications

References 80 publications

A Pivotal Role of Hormones in Regulating Cotton Fiber Development

A Pivotal Role of Hormones in Regulating Cotton Fiber Development

Genome-Wide Identification of Banana Csl Gene Family and Their Different Responses to Low Temperature between Chilling-Sensitive and Tolerant Cultivars

Nitrogen Starvation Differentially Influences Transcriptional and Uptake Rate Profiles in Roots of Two Maize Inbred Lines with Different NUE

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