RsCLE22a regulates taproot growth through an auxin signaling-related pathway in radish (<i>Raphanus sativus</i> L.)

Dong, Junhui; Wang, Yan; Xu, Liang; Li, Bingshuang; Wang, Kai; Ying, Jiali; He, Qing; Liu, Liwang

doi:10.1093/jxb/erac406

Cited by 11 publications

(6 citation statements)

References 79 publications

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“…The SWEET17 gene is mainly expressed in vascular tissue and meristem cells of the root tip, which is involved in lateral root development in Arabidopsis plants [23]. The cambium mediates the process of root thickening, which strongly plays an essential role in the yield of root crops [40,58]. In the current study, RsSWEET17 was found to be highly abundant in roots and specifically expressed in the cambium regions of the radish taproot.…”

Section: Rssweet17 Positively Regulates Sugar Accumulation and Root G...mentioning

confidence: 50%

Genome-Wide Identification of the RsSWEET Gene Family and Functional Analysis of RsSWEET17 in Root Growth and Development in Radish

et al. 2023

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SWEET (Sugars Will Eventually be Exported Transporter) genes play essential roles in various biological processes, including phloem loading, sugar efflux, plant development and stress response. In this study, a total of 33 RsSWEET gene members were identified in the radish genome. They could be divided into four subfamilies and are distributed on eight radish chromosomes. Cis-acting regulatory element analysis indicated that these RsSWEET genes were potentially involved in the radish growth and development and stress response process, including circadian control and light response and responses to numerous stresses, including low-temperature and drought stress. Transcriptome data analysis revealed that a number of RsSWEET genes exhibited specific expression patterns in different tissues and developmental stages of radish. Moreover, several RsSWEET genes (e.g., RsSWEET2a, RsSWEET3a, RsSWEET16b and RsSWEET17) showed differential expression profiles under various abiotic stresses, including cold, heat, salt, Cd and Pb stress. Remarkably, the RsSWEET17 was specifically expressed in the cambium of radish. RsSWEET17 was heterologously expressed in yeast strain EBY.VW4000, which suggested that it has the ability to transport sugar. Notably, RsSWEET17-overexpressing Arabidopsis plants exhibited excessive root length, greater fresh weight and higher soluble sugar content (SSC) accumulation compared with wild-type (WT) plants, indicating that RsSWEET17 might positively regulate radish taproot development by strategically manipulating sugar accumulation. Collectively, these results clarify the molecular mechanisms underlying RsSWEET-mediated sugar accumulation and root growth and development in radish.

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Section: Rssweet17 Positively Regulates Sugar Accumulation and Root G...mentioning

confidence: 50%

Genome-Wide Identification of the RsSWEET Gene Family and Functional Analysis of RsSWEET17 in Root Growth and Development in Radish

et al. 2023

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“…Due to the interaction between RALF and FER under salt stress, we speculate that RALF may also have intricate connections with plant hormones, akin to other plant peptides [112]. Recent findings indicate that ethylene downregulates the expression of CsRALF34 in cucumber [71], whereas in Arabidopsis, AtRALF34 is modulated by both auxin and ethylene [59]. Furthermore, the external application of SpPIP1 modulates jasmonic acid levels, thereby enhancing tomato resistance to stress [113].…”

Section: Plant Peptides Control the Biosynthesis Of Hormonesmentioning

confidence: 97%

“…The antimicrobial peptide DmAMP1W from wheat curtails the proliferation of fungi, including fungi Rhizoctonia cerealis and Bipolaris sorokiniana, effectively combating wheat sharp eyespot and root rot diseases [70]. Additionally, a variety of small peptides, such as those released by papain-like cysteine proteases, Defensin-Derived Antifungal Peptides, and small cysteine-rich (SCR) secreted proteins like RsMf8HN, play an integral role in plants' defense against fungal and bacterial pathogens [71][72][73]. The peptide VISP1, acting as a selective autophagy receptor, plays an essential role in plant immunity [74].…”

Section: Other Functions Of Small Peptides In Plant Growth and Develo...mentioning

confidence: 99%

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Research Progress of Small Plant Peptides on the Regulation of Plant Growth, Development, and Abiotic Stress

Ren,

Zhang,

Chen

et al. 2024

IJMS

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Small peptides in plants are typically characterized as being shorter than 120 amino acids, with their biologically active variants comprising fewer than 20 amino acids. These peptides are instrumental in regulating plant growth, development, and physiological processes, even at minimal concentrations. They play a critical role in long-distance signal transduction within plants and act as primary responders to a range of stress conditions, including salinity, alkalinity, drought, high temperatures, and cold. This review highlights the crucial roles of various small peptides in plant growth and development, plant resistance to abiotic stress, and their involvement in long-distance transport. Furthermore, it elaborates their roles in the regulation of plant hormone biosynthesis. Special emphasis is given to the functions and mechanisms of small peptides in plants responding to abiotic stress conditions, aiming to provide valuable insights for researchers working on the comprehensive study and practical application of small peptides.

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“…A large number of genes have been identified to involve in the process of rhizome development. For instance, radish CycD3 and RsCLE22a gene were confirmed to participate in the formation of fleshy roots ( Lutova et al., 2008 ; Dong et al., 2022 ). Two MADS-box genes could regulate vascular cambium activity and secondary growth of poplar by regulating IAA homeostasis ( Zheng et al., 2020 ).…”

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confidence: 99%

Combined analysis of the transcriptome and metabolome provides insights into the fleshy stem expansion mechanism in stem lettuce

Huang

Li²,

Liu³

et al. 2022

Front. Plant Sci.

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As a stem variety of lettuce, the fleshy stem is the main product organ of stem lettuce. The molecular mechanism of fleshy stem expansion in stem lettuce is a complex biological process. In the study, the material accumulation, gene expression, and morphogenesis during fleshy stem expansion process were analyzed by the comparative analysis of metabolome, transcriptome and the anatomical studies. The anatomical studies showed that the occurrence and activity of vascular cambium mainly led to the development of fleshy stems; and the volume of pith cells gradually increased and arranged tightly during the expansion process. A total of 822 differential metabolites and 9,383 differentially expressed genes (DEGs) were identified by the metabolomics and transcriptomics analyses, respectively. These changes significantly enriched in sugar synthesis, glycolysis, and plant hormone anabolism. The expression profiles of genes in the sugar metabolic pathway gradually increased in fleshy stem expansion process. But the sucrose content was the highest in the early stage of fleshy stem expansion, other sugars such as fructose and glucose content increased during fleshy stem expansion process. Plant hormones, including IAA, GA, CTK, and JA, depicted important roles at different stem expansion stages. A total of 1,805 DEGs were identified as transcription factors, such as MYB, bHLH, and bZIP, indicating that these transcription factor families might regulate the fleshy stems expansion in lettuce. In addition, the expression patterns identified by qRT-PCR were consistent with the expression abundance identified by the transcriptome data. The important genes and metabolites identified in the lettuce fleshy stem expansion process will provide important information for the further molecular mechanism study of lettuce fleshy stem growth and development.

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RsCLE22a regulates taproot growth through an auxin signaling-related pathway in radish (Raphanus sativus L.)

Cited by 11 publications

References 79 publications

Genome-Wide Identification of the RsSWEET Gene Family and Functional Analysis of RsSWEET17 in Root Growth and Development in Radish

Genome-Wide Identification of the RsSWEET Gene Family and Functional Analysis of RsSWEET17 in Root Growth and Development in Radish

Research Progress of Small Plant Peptides on the Regulation of Plant Growth, Development, and Abiotic Stress

Combined analysis of the transcriptome and metabolome provides insights into the fleshy stem expansion mechanism in stem lettuce

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