Lateral Organ Boundaries Domain 19 (LBD19) negative regulate callus formation in Arabidopsis

Liu, Siqi; Wang, Bo; Li, Xiaojing; Pan, Jingxian; Qian, Xuexue; Yu, Yahui; Xu, Ping; Zhu, Jian Kang; Xu, Xiaofeng

doi:10.1007/s11240-019-01584-9

Cited by 9 publications

(3 citation statements)

References 29 publications

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“…AtLBD29 rapidly activates genes that are involved in reactive oxygen species (ROS) and lipid metabolism, methylation and cell wall hydrolysis, but suppresses most of the light-responsive genes [78]. Besides, a recent study suggests that AtLBD19 may play an important role in coordinating callus formation in Arabidopsis along with other AtLBD members [77]. Moreover, AtLBD16 and AtLBD29 are required for AR formation from wounded or detached plant tissues, a different auxin-driven process called "de novo root organogenesis" [105].…”

Section: Functions Of Lbd Proteins In Class Ib Cladementioning

confidence: 99%

Phylogeny and Functions of LOB Domain Proteins in Plants

Zhang

et al. 2020

IJMS

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Lateral organ boundaries (LOB) domain (LBD) genes, a gene family encoding plant-specific transcription factors, play important roles in plant growth and development. At present, though there have been a number of genome-wide analyses on LBD gene families and functional studies on individual LBD proteins, the diverse functions of LBD family members still confuse researchers and an effective strategy is required to summarize their functional diversity. To further integrate and improve our understanding of the phylogenetic classification, functional characteristics and regulatory mechanisms of LBD proteins, we review and discuss the functional characteristics of LBD proteins according to their classifications under a phylogenetic framework. It is proved that this strategy is effective in the anatomy of diverse functions of LBD family members. Additionally, by phylogenetic analysis, one monocot-specific and one eudicot-specific subclade of LBD proteins were found and their biological significance in monocot and eudicot development were also discussed separately. The review will help us better understand the functional diversity of LBD proteins and facilitate further studies on this plant-specific transcription factor family.

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Section: Functions Of Lbd Proteins In Class Ib Cladementioning

confidence: 99%

Phylogeny and Functions of LOB Domain Proteins in Plants

Zhang

et al. 2020

IJMS

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“…Certain members of the MYB family can also regulate CF [31]. Those of the LBD family are critical in plant regeneration and regulate CF in Arabidopsis, cotton, and strawberry [32][33][34]. The members of the Group I of the bZIP family play a crucial role in the early development of plants [35].…”

Section: Tf Play An Important Role In Cfmentioning

confidence: 99%

Evaluating Tartary Buckwheat Genotypes with High Callus Induction Rates and the Transcriptomic Profiling during Callus Formation

Zhao,

Li,

Xiao

et al. 2023

Plants

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Due to their complex genotypes, low in vitro regeneration rates, and difficulty in obtaining transgenic plants, studies concerning basic biological research and molecular breeding in Tartary buckwheat (TB) are greatly limited. In this study, the hypocotyls of 60 genotypes of TB (TBC1~60) were used as explants. Of these, TBC14 was selected due to a high callus induction rate of 97.78% under dark and a proliferation coefficient (PC) of 28.2 when cultured on MS medium supplemented with 2.0 mg/L of 2,4-D and 1.5 mg/L of 6-BA. Subsequently, the samples of the calli obtained from TBC14 were collected at 0, 10, 20, and 30 d, and their transcriptomes were sequenced where identified. GO enrichment led to the detection of the most significant active gene set, which was the DNA binding transcription factor activity. The DEGs related to the pathways concerning metabolism, the biosynthesis of secondary metabolites, and hormone signal transduction were the most enriched in the KEGG database. The sets of MYB, AP2/ERF, and bHLH TFs exhibited the highest number of DEGs. Using this enrichment analysis, 421 genes encoding TFs, 47 auxin- and cytokinin-related genes, and 6 signal transduction-associated genes were screened that may play significant roles in callus formation (CF) in TB. Furthermore, FtPinG0008123200.01 (bZIP), a key gene promoting CF, was screened in terms of the weighted gene co-expression network associated with the various stages of CF. Our study not only provides valuable information about the molecular mechanism of CF but also reveals new genes involved in this process.

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“…According to collinearity analysis, similar to RrLBD25 and AtLBD25, RrLBD4.1 and AtLBD4, RrLBD4.2 and AtLBD3, and RrLBD19 and AtLBD19 are homologous gene pairs. PtLBD4 is involved in the regulation of secondary growth in poplar, whereas AtLBD19 regulates callus formation; however, the specific function of LBD3 has not been clarified [66,67]. Other candidate genes, such as RrLBD12 and RrLBD13, need to be studied to determine their corresponding salt stress mechanisms.…”

Section: Salt Response Of Rrlbd Candidatesmentioning

confidence: 99%

Genome-Wide Identification of LATERAL ORGAN BOUNDARIES DOMAIN (LBD) Transcription Factors and Screening of Salt Stress Candidates of Rosa rugosa Thunb

Wang

Zhang

Cheng

et al. 2021

Biology

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LATERAL ORGAN BOUNDARIES DOMAIN (LBD) transcription factors are regulators of lateral organ morphogenesis, boundary establishment, and secondary metabolism in plants. The responsive role of LBD gene family in plant abiotic stress is emerging, whereas its salt stress responsive mechanism in Rosa spp. is still unclear. The wild plant of Rosa rugosa Thunb., which exhibits strong salt tolerance to stress, is an ideal material to explore the salt-responsive LBD genes. In our study, we identified 41 RrLBD genes based on the R. rugosa genome. According to phylogenetic analysis, all RrLBD genes were categorized into Classes I and II with conserved domains and motifs. The cis-acting element prediction revealed that the promoter regions of most RrLBD genes contain defense and stress responsiveness and plant hormone response elements. Gene expression patterns under salt stress indicated that RrLBD12c, RrLBD25, RrLBD39, and RrLBD40 may be potential regulators of salt stress signaling. Our analysis provides useful information on the evolution and development of RrLBD gene family and indicates that the candidate RrLBD genes are involved in salt stress signaling, laying a foundation for the exploration of the mechanism of LBD genes in regulating abiotic stress.

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Lateral Organ Boundaries Domain 19 (LBD19) negative regulate callus formation in Arabidopsis

Cited by 9 publications

References 29 publications

Phylogeny and Functions of LOB Domain Proteins in Plants

Phylogeny and Functions of LOB Domain Proteins in Plants

Evaluating Tartary Buckwheat Genotypes with High Callus Induction Rates and the Transcriptomic Profiling during Callus Formation

Genome-Wide Identification of LATERAL ORGAN BOUNDARIES DOMAIN (LBD) Transcription Factors and Screening of Salt Stress Candidates of Rosa rugosa Thunb

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