Coordination between <i>MIDASIN 1</i>-mediated ribosome biogenesis and auxin modulates plant development

Li, Ké; Zhou, Ximeng; Sun, Xiaoyan; Li, Guanghui; Hou, Lei; Zhao, Shuzhen; Zhao, Chuanzhi; Ma, Changle; Li, Pengcheng; Wang, Xingjun

doi:10.1093/jxb/erab025

Cited by 7 publications

(4 citation statements)

References 59 publications

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“…Indole-acetic acid (IAA) and gibberellin have been recognized as the known plant hormones found in plants many decades ago. Some studies have recently demonstrated that various phytohormones such as cytokinins (CTK), abscisic acid (ABA), ethylene, strigolactone, and melatonin are involved in plant growth and development and in responses to stress [ 1 , 2 , 3 , 4 ]. Brassinosteroids (BRs), a new type of plant hormone, have drawn an increased amount of attention.…”

Section: Introductionmentioning

confidence: 99%

Brassinosteroids in Plants: Crosstalk with Small-Molecule Compounds

Wei

Liao

2021

Biomolecules

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Brassinosteroids (BRs) are known as the sixth type of plant hormone participating in various physiological and biochemical activities and play an irreplaceable role in plants. Small-molecule compounds (SMCs) such as nitric oxide (NO), ethylene, hydrogen peroxide (H2O2), and hydrogen sulfide (H2S) are involved in plant growth and development as signaling messengers. Recently, the involvement of SMCs in BR-mediated growth and stress responses is gradually being discovered in plants, including seed germination, adventitious rooting, stem elongation, fruit ripening, and stress responses. The crosstalk between BRs and SMCs promotes plant development and alleviates stress damage by modulating the antioxidant system, photosynthetic capacity, and carbohydrate metabolism, as well as osmotic adjustment. In the present review, we try to explain the function of BRs and SMCs and their crosstalk in the growth, development, and stress resistance of plants.

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Section: Introductionmentioning

confidence: 99%

Brassinosteroids in Plants: Crosstalk with Small-Molecule Compounds

Wei

Liao

2021

Biomolecules

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“…). The ARF7 create auxin responsiveness in MND1 and regulate plant development(Li et al 2021). ARF7 regulate the MUS and LBD16 during lateral root development (Xun et al 2020; Singh 2022).…”

mentioning

confidence: 99%

Linkage and association mapping of ovule number per ovary (ON) in oilseed rape (Brassica napus L.)

Ali

Zhang

et al. 2023

Mol Breeding

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Ovule number (ON) produced during ower development determines the maximum number of seeds per silique and thereby affects crop productivity; however, the genetic control of ON remains poorly understood in oilseed rape (Brassica napus). In this study, we genetically dissected the ON variations in a double haploid population (DH) and in diverse inbred accessions by linkage mapping and genome-wide association analysis. Phenotypic analysis in six environments showed that ON displayed normal distribution in both populations with the broad-sense heritability of 0.861 (DH population) and 0.930 (natural population). Linkage mapping identi ed 5 QTLs related to ON, including qON-A03, qON-A07, qON-A07-2, qON-A10, and qON-C06. Genome-wide association studies (GWAS) revealed 214, 48 and 40 signi cant single nucleotide polymorphisms (SNPs) by individually using the single-locus model GLM and the multiple-locus model MrMLM and FASTMrMLM. The phenotypic variation explained (PVE) by these QTLs and SNPs ranged from 2.00-17.40% and 5.03-7.33%, respectively. Integration of the results from both strategies identi ed four consensus genomic regions associated with ON from the Chr A03, A07, and A10. Our results preliminarily resolved the genetic basis of ON and provides useful molecular markers for plant yield improvement in B. napus.

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“…Among RBFs, the phenotypic similarity of pointy first leaf extends to mutants lacking in prmt3 (Hang et al, 2014), midasin1 (Li et al, 2021), apum24 (Maekawa et al, 2018), brx1-2 (Weis, Palm, et al, 2015), rh7 (Huang et al, 2016) and irp2 (Palm et al, 2019).…”

Section: Growth Manifestation Due To Mutationmentioning

confidence: 99%

“…Whether such selective mRNA non-translation led to direct perturbation at the proteome level and thus leading to observed growth pleiotropy remains to be established. The leaf patterning defects leading to pointy leaves up on RPs and RBFs mutation have been attributed to impaired auxin signaling in several mutants (Rosado et al, 2010;Abbasi et al, 2010;Rosado et al, 2012;Li et al, 2021). It is likely that similar mechanisms influence the common phenotypic outcomes.…”

Section: Growth Manifestation Due To Mutationmentioning

confidence: 99%

Mutational analysis of ribosomal DNA and maturation-scheme analysis of ribosomal RNA in A. thaliana

Shanmugam¹

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Ribosome biogenesis is a fundamental cellular process beginning with long precursor rRNA transcription from multi-copies of repetitive 45S ribosomal DNAs. At the subunit level, the primary pre-rRNA transcript encapsuled in 90S protein-RNA complex undergoes decisive splitting in two chief ways for further maturation into large (LSU) and small (SSU) ribosomal subunit. The usage of specific rDNA copies from defined chromosomes and their selective role during growth and development have been a topic of interest owing to its contribution to specialized ribosome theory which proposes non-monolithic functions for ribosomes and thereby their mRNA translation potential. Dual-guide CRISPR/Cas9 mediated disruption of rDNA regions resulted in stable disruption of up to 2.5% and 5% of all rDNA copies in hetero- and homozygous (ploop KD) conditions, respectively. At the RNA level, the mutation excised a critical structural element, P-loop on the LSU 25S rRNA. Mutation caused a dosage dependent defect with homozygosity leading to severe developmental defects through vegetative and reproductive growth phases which is manifested in their proteome by means of disregulation through both increase and decrease of several gene ontological categories of proteins in mutants. Interestingly, the mutation on chromosome 4 triggered dosage compensation through rRNA expression from chromosome 2 further compounded by ectopic rRNA biogenesis defects. The mutated copies however are not incorporated in the translating ribosomes and as a direct or indirect consequence led to elevated basal autophagic levels in the mutants. The primary 35S transcript is known to undergo two modes of initial cleavages at the pre-rRNA level that aid in their subsequent maturation. Root cell culture (RCC) studies shows that these cells contain a novel ITS2-first cleaved precursor even under control growth conditions, P-C2 adding a third maturation means for the 35S pre-rRNA. This maturation path is further known to be triggered under elevated growth temperature forming a novel adaptive response in Arabidopsis and two other crop plants, tomato, and rice. Taken together, the pulse-chase labeling analysis of control and stressed tissues uncovers the fine-tuned pre-rRNA schematics with crossovers between multiple maturation paths.

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Coordination between MIDASIN 1-mediated ribosome biogenesis and auxin modulates plant development

Cited by 7 publications

References 59 publications

Brassinosteroids in Plants: Crosstalk with Small-Molecule Compounds

Brassinosteroids in Plants: Crosstalk with Small-Molecule Compounds

Linkage and association mapping of ovule number per ovary (ON) in oilseed rape (Brassica napus L.)

Mutational analysis of ribosomal DNA and maturation-scheme analysis of ribosomal RNA in A. thaliana

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