LOB Domain Proteins: Beyond Lateral Organ Boundaries

Xu, Changzheng; Luo, Feng; Hochholdinger, Frank

doi:10.1016/j.tplants.2015.10.010

Cited by 137 publications

(132 citation statements)

References 65 publications

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“…Intriguingly, every transcript belonging to this family was down-regulated in all the pairwise comparisons ( AC149818.2_FGT009 and GRMZM2G092542_T01 in Bio vs. N; GRMZM2G092483_T01 in Bio vs. Aa; GRMZM2G092542_T01, AC234149.1_FGT002, AC149818.2_FGT009 and GRMZM2G073044_T01 in Aa vs. N) (Supplementary Tables S3–S5). These proteins display high functional diversity including regulation of lateral root formation and N metabolism (Xu et al, 2016). In Arabidopsis , LBD16, LBD18, and LBD29 regulate lateral root organogenesis acting on auxin signaling pathway (Feng et al, 2012).…”

Section: Resultsmentioning

confidence: 99%

Growth Stimulatory Effects and Genome-Wide Transcriptional Changes Produced by Protein Hydrolysates in Maize Seedlings

et al. 2017

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Protein hydrolysates are an emerging class of crop management products utilized for improving nutrient assimilation and mitigating crop stress. They generally consist of a mixture of peptides and free amino acids derived from the hydrolysis of plant or animal sources. The present work was aimed at studying the effects and the action mechanisms of a protein hydrolysate derived from animal residues on maize root growth and physiology in comparison with the effects induced by either free amino acids or inorganic N supply. The application of the protein hydrolysate caused a remarkable enhancement of root growth. In particular, in the protein hydrolysate-treated plants the length and surface area of lateral roots were about 7 and 1.5 times higher than in plants treated with inorganic N or free amino acids, respectively. The root growth promoting effect of the protein hydrolysate was associated with an increased root accumulation of K, Zn, Cu, and Mn when compared with inorganic N and amino acids treatments. A microarray analysis allowed to dissect the transcriptional changes induced by the different treatments demonstrating treatment-specific effects principally on cell wall organization, transport processes, stress responses and hormone metabolism.

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Section: Resultsmentioning

confidence: 99%

Growth Stimulatory Effects and Genome-Wide Transcriptional Changes Produced by Protein Hydrolysates in Maize Seedlings

et al. 2017

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“…ASL/LBD proteins play a crucial role in defining organ boundaries and are involved in almost all aspects of plant development, including embryo, root, leaf, and inflorescence development (Byrne et al, 2000;Borghi et al, 2007;Majer and Hochholdinger, 2011;Xu et al, 2016). Several Arabidopsis class I members have been implicated in plant development.…”

Section: Expression Analysis Of Asl/lbd Genes On Plant Growth and Devmentioning

confidence: 99%

“…AS2-like (ASL)/LOB domain (LBD) genes are also involved in the regulation of anthocyanin and nitrogen metabolism (Rubin et al, 2009;Majer and Hochholdinger, 2011;Koppolu et al, 2013;Xu et al, 2016). ASL/LBD genes encode a protein containing a conserved amino acid domain of unknown function, termed the AS2/LOB domain.…”

Section: Introductionmentioning

confidence: 99%

A genome-wide analysis of the ASYMMETRIC LEAVES2/LATERAL ORGAN BOUNDARIES (AS2/LOB) gene family in barley (Hordeum vulgare L.)

Guo

Lin

Tian

et al. 2016

J. Zhejiang Univ. Sci. B

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Abstract:ASYMMETRIC LEAVES2/LATERAL ORGAN BOUNDARIES (AS2/LOB) genes are a family of plant specific transcription factors, which play an important role in the regulation of plant lateral organ development and metabolism. However, a genome-wide analysis of the AS2/LOB gene family is still not available for barley. In the present study, 24 AS2-like (ASL)/LOB domain (LBD) genes were identified based on the barley (Hordeum vulgare L.) genome sequence. A phylogenetic tree of ASL/LBD proteins from barley, Arabidopsis, maize, and rice was constructed. The ASL/LBD genes were classified into two classes, class I and class II, which were divided into five and two subgroups, respectively. Genes homologous in barley and Arabidopsis were analyzed. In addition, the structure and chromosomal locations of the genes were analyzed. Expression profiles indicated that barley HvASL/LBD genes exhibit a variety of expression patterns, suggesting that they are involved in various aspects of physiological and developmental processes. This genome-wide analysis of the barley AS2/LOB gene family contributes to our understanding of the functions of the AS2/LOB gene family.

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“…A target of miR408a is the gene LOB37, the product of which is a LOB domain protein; such proteins are known to be required for adventitious or fibrous root formation (Liu et al, 2005;Xu et al, 2016). This miRNA was downregulated in the roots of R2-R4 plants, implying a greater accumulation of LOB37, and hence favoring the growth of fibrous roots at the expense of tuberous ones.…”

Section: Discussionmentioning

confidence: 99%

The miRNAomes in Rehmannia glutinosa Roots Exposed to Different Levels of Replanting Disease Pressure

Yang¹,

Li²,

Yan-jie³

2017

IJAB

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To cite this paper: Yang, Y., M. Li and Y. Yi, 2017. The miRNAomes in Rehmannia glutinosa roots exposed to different levels of replanting disease pressure. AbstractRoot development in the medicinal plant Rehmannia glutinosa is severely disordered by replanting disease, which occurs when it is grown in the same soils over consecutive seasons. Following the demonstration of changes to the miRNAome of the R. glutinosa plants in the second year of cultivation, a fuller experiment was organized to track the root miRNAomes over four successive plantings. Four small RNA libraries were generated from the roots of one year's planted (free of replanting disease) and 2-4 years' continuous cultivation (replanting disease) R. glutinosa plants, respectively. Sequencing of these libraries revealed the presence of 18 novel and 344 conserved miRNA families. The abundance of many of the miRNAs varied between the four libraries, consistent with the notion that replanting disease reflects the outcome differential miRNA transcription. A combined bioinformatic and degradome sequencing approach allowed the identification of 69 differentially abundant (DA) miRNA targets, leading to the recognition that particular miRNA/target modules may be important for the expression of the disease. The expression profiles of 28 key miRNAs and their targets implied that the longer years of continuous cultivation was extended, the more severe tendency of these profiles' changes would be. The indication was that the miRNAs-responsive continuous cultivation pressure reprogrammed gene expression patterns, which disordered hormone signaling, repressed core mechanisms, weakened stress tolerance and resulted in forming the disease in R. glutinosa. In conclusion, the key miRNAs involved in important roles of replanting disease and were a crucial basis for exploration in the disease forming repertoire.

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LOB Domain Proteins: Beyond Lateral Organ Boundaries

Cited by 137 publications

References 65 publications

Growth Stimulatory Effects and Genome-Wide Transcriptional Changes Produced by Protein Hydrolysates in Maize Seedlings

Growth Stimulatory Effects and Genome-Wide Transcriptional Changes Produced by Protein Hydrolysates in Maize Seedlings

A genome-wide analysis of the ASYMMETRIC LEAVES2/LATERAL ORGAN BOUNDARIES (AS2/LOB) gene family in barley (Hordeum vulgare L.)

The miRNAomes in Rehmannia glutinosa Roots Exposed to Different Levels of Replanting Disease Pressure

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