Molecular mechanisms underlying the action of strigolactones involved in grapevine root development by interacting with other phytohormone signaling

Jiu, Songtao; Xu, Yan; Wang, Jiyuan; Haider, Muhammad Salman; Xu, Jieming; Wang, Lei; Wang, Shiping; Li, Jiajia; Liu, Xunju; Sun, Wanxia; Xu, Wenping; Zhang, Caixi

doi:10.1016/j.scienta.2021.110709

Cited by 12 publications

(4 citation statements)

References 90 publications

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“…Belowground frost primarily destroys fine roots, which are vital for the uptake of water and minerals (Ambroise et al, 2020). The strigolactone pathway is required for extensive branching and therefore for formation of these fine roots (Rasmussen et al, 2013; Jiu et al, 2022). Our data suggest there exists a molecular strategy for frost hardiness that prefers a desensitized strigoactone pathway that is less sensitive to internal signaling molecules such as the GOLVEN peptides.…”

Section: Discussionmentioning

confidence: 99%

A Multitrait Genome-Wide Association Study Reveals a Requirement for the Strigolactone Receptor MtDWARF14 in Optimal GOLVEN Signaling

Roy,

Kang,

Zhang

et al. 2024

Preprint

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GOLVEN/ROOT MERISTEM GROWTH FACTOR family of signaling peptides have been shown to control root lateral organ number, density and positioning in plants, although the signaling pathways involved remain obscure. A diverse set of 171Medicago truncatulaHapMap accessions with variation in responses to the GOLVEN 10 peptide, GLV10, were used to identify 74 significant loci controlling seven traits related to nodule formation and root architecture. Importantly, a single nucleotide polymorphism (SNP) in the upstream region of the MtGLV10 peptide-inducible strigolactone receptor gene,MtDWARF14was significantly associated with insensitivity of nodule density to GLV10, suggesting a link between strigolactone signaling and GLV10 responsiveness. Three independentd14mutants of the DWARF14gene were found to hypernodulate, while overexpression of the gene led to reduction in nodule number, phenocopying GLV10. A null mutant,mtd14-1, remained sensitive to GLV10’s effect on nodule density. However, at the transcriptional level, the mutant failed to effectively induce the expression of the GOLVEN marker genes,MtPLETHORA3andMtPINLIKES2. Our study uncovers a hitherto unknown link between the strigolactone and GLV peptide signaling pathways using genotype x environment analysis of Medicago HapMap lines and provides a putative molecular mechanism for recovery from frost damage to fine roots.

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Section: Discussionmentioning

confidence: 99%

A Multitrait Genome-Wide Association Study Reveals a Requirement for the Strigolactone Receptor MtDWARF14 in Optimal GOLVEN Signaling

Roy,

Kang,

Zhang

et al. 2024

Preprint

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“…Triazole reagent (Takara, Dalian, China) was used to extract total RNA from the stem samples according to the manufacturer’s instructions. Genomic DNA was removed using RNase-free DNase I (NEB, Beijing, China) ( Jiu et al., 2022 ). RNA concentration was measured using an Agilent 2100 biological analyzer (Santa Clara, California, USA).…”

Section: Methodsmentioning

confidence: 99%

Strigolactones modulate stem length and diameter of cherry rootstocks through interaction with other hormone signaling pathways

Liu

Xu²,

Sun³

et al. 2023

Front. Plant Sci.

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Stem growth and development has considerable effects on plant architecture and yield performance. Strigolactones (SLs) modulate shoot branching and root architecture in plants. However, the molecular mechanisms underlying SLs regulate cherry rootstocks stem growth and development remain unclear. Our studies showed that the synthetic SL analog rac-GR24 and the biosynthetic inhibitor TIS108 affected stem length and diameter, aboveground weight, and chlorophyll content. The stem length of cherry rootstocks following TIS108 treatment reached a maximum value of 6.97 cm, which was much higher than that following rac-GR24 treatments at 30 days after treatment. Stem paraffin section showed that SLs affected cell size. A total of 1936, 743, and 1656 differentially expressed genes (DEGs) were observed in stems treated with 10 μM rac-GR24, 0.1 μM rac-GR24, and 10 μM TIS108, respectively. RNA-seq results highlighted several DEGs, including CKX, LOG, YUCCA, AUX, and EXP, which play vital roles in stem growth and development. UPLC-3Q-MS analysis revealed that SL analogs and inhibitors affected the levels of several hormones in the stems. The endogenous GA3 content of stems increased significantly with 0.1 μM rac-GR24 or 10 μM TIS108 treatment, which is consistent with changes in the stem length following the same treatments. This study demonstrated that SLs affected stem growth of cherry rootstocks by changing other endogenous hormone levels. These results provide a solid theoretical basis for using SLs to modulate plant height and achieve sweet cherry dwarfing and high-density cultivation.

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“…Root restriction is suitable for high-density, high-yield and high-efficiency cultivation [ 5 ]. Numerous studies on different fruit, such as grapes [ 2 , 6 , 7 ], nectarines [ 5 ], sweet cherry [ 8 ], chilli [ 9 ], apple [ 10 ] and tomato [ 11 ], have revealed the remarkable changes that can suppress vegetative growth and boosts the reproductive growth as well. The primary goal of implementing this strategy is to have the most delicate fruit quality possible, which is regulated by an increase in the size, colour, flavour, anthocyanin, and content of total soluble solids [ 3 , 4 , 12 , 13 ].…”

Section: Introductionmentioning

confidence: 99%

Root-Zone Restriction Regulates Soil Factors and Bacterial Community Assembly of Grapevine

Zahid

Hussain

Song

et al. 2022

IJMS

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Root-zone restriction induces physiological stress on roots, thus limiting the vegetative and enhancing reproductive development, which promotes fruit quality and growth. Numerous bacterial-related growth-promoting, stress-mitigating, and disease-prevention activities have been described, but none in root-restricted cultivation. The study aimed to understand the activities of grapevine bacterial communities and plant-bacterial relationships to improve fruit quality. We used High-throughput sequencing, edaphic soil factors, and network analysis to explore the impact of restricted cultivation on the diversity, composition and network structure of bacterial communities of rhizosphere soil, roots, leaves, flowers and berries. The bacterial richness, diversity, and networking were indeed regulated by root-zone restriction at all phenological stages, with a peak at the veraison stage, yielding superior fruit quality compared to control plants. Moreover, it also handled the nutrient availability in treated plants, such as available nitrogen (AN) was 3.5, 5.7 and 0.9 folds scarcer at full bloom, veraison and maturity stages, respectively, compared to control plants. Biochemical indicators of the berry have proved that high-quality berry is yielded in association with the bacteria. Cyanobacteria were most abundant in the phyllosphere, Proteobacteria in the rhizosphere, and Firmicutes and Bacteroidetes in the endosphere. These bacterial phyla were most correlated and influenced by different soil factors in control and treated plants. Our findings are a comprehensive approach to the implications of root-zone restriction on the bacterial microbiota, which will assist in directing a more focused procedure to uncover the precise mechanism, which is still undiscovered.

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Molecular mechanisms underlying the action of strigolactones involved in grapevine root development by interacting with other phytohormone signaling

Cited by 12 publications

References 90 publications

A Multitrait Genome-Wide Association Study Reveals a Requirement for the Strigolactone Receptor MtDWARF14 in Optimal GOLVEN Signaling

A Multitrait Genome-Wide Association Study Reveals a Requirement for the Strigolactone Receptor MtDWARF14 in Optimal GOLVEN Signaling

Strigolactones modulate stem length and diameter of cherry rootstocks through interaction with other hormone signaling pathways

Root-Zone Restriction Regulates Soil Factors and Bacterial Community Assembly of Grapevine

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