ArticlePlant molecular biology2010
SacRALF1, a peptide signal from the grass sugarcane (Saccharum spp.), is potentially involved in the regulation of tissue expansion.
Article in Plant molecular biology, 2010. The graph could read no effect estimate from its abstract, so it casts no vote on the map. Cited by 24 papers.
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Who cites it
24 citing papers in PubMed, 65 citations in OpenAlex.
- The RALF-FERONIA Signaling Axis: A Central Hub Integrating Plant Growth, Reproduction, and Stress Responses.International journal of molecular sciences · 2025Review
- From roots to reproduction: the multifaceted roles of rapid alkalinization factor and epidermal patterning factor peptides in plants.Journal of experimental botany · 2025Review
- Genome-Wide Characterization ofInternational journal of molecular sciences · 2025Article
- Peptide hormones in plants.Molecular horticulture · 2025Review
- The RALF signaling pathway regulates cell wall integrity during pollen tube growth in maize.The Plant cell · 2024Article
- Rapid alkalinization factor: function, regulation, and potential applications in agriculture.Stress biology · 2023Review
- Molecular Mechanisms of Regulation of Root Development by Plant Peptides.Plants (Basel, Switzerland) · 2023Review
- Genome-wide characterization of soybeanFrontiers in plant science · 2022Article
- Twenty Years of Progress in Physiological and Biochemical Investigation of RALF Peptides.Plant physiology · 2020Review
- Perception of Damaged Self in Plants.Plant physiology · 2020Review
- Plant Leucine-Rich Repeat Receptor Kinase (LRR-RK): Structure, Ligand Perception, and Activation Mechanism.Molecules (Basel, Switzerland) · 2019Review
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- BAK1 is involved in AtRALF1-induced inhibition of root cell expansion.PLoS genetics · 2017Article
- Expansion and evolutionary patterns of cysteine-rich peptides in plants.BMC genomics · 2017Article
- RALFL34 regulates formative cell divisions in Arabidopsis pericycle during lateral root initiation.Journal of experimental botany · 2016Article
- The Plant Peptidome: An Expanding Repertoire of Structural Features and Biological Functions.The Plant cell · 2015Review
- Differential transcriptome analysis reveals insight into monosymmetric corolla development of the crucifer Iberis amara.BMC plant biology · 2014Article
- Arabidopsis thaliana RALF1 opposes brassinosteroid effects on root cell elongation and lateral root formation.Journal of experimental botany · 2014Article
- Antagonistic relationship between AtRALF1 and brassinosteroid regulates cell expansion-related genes.Plant signaling & behavior · 2014Article
Corrections and comments
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Authors and funding
7 authors at 2 institutions in 1 country.
Funding
No grant is acknowledged in the PubMed record.
Abstract
Rapid alkalinization factor (RALF) is part of a growing family of small peptides with hormone characteristics in plants. Initially isolated from leaves of tobacco plants, RALF peptides can be found throughout the plant kingdom and they are expressed ubiquitously in plants. We took advantage of the small gene family size of RALF genes in sugarcane and the ordered cellular growth of the grass sugarcane leaves to gain information about the function of RALF peptides in plants. Here we report the isolation of two RALF peptides from leaves of sugarcane plants using the alkalinization assay. SacRALF1 was the most abundant and, when added to culture media, inhibited growth of microcalli derived from cell suspension cultures at concentrations as low as 0.1 microM. Microcalli exposed to exogenous SacRALF1 for 5 days showed a reduced number of elongated cells. Only four copies of SacRALF genes were found in sugarcane plants. All four SacRALF genes are highly expressed in young and expanding leaves and show a low or undetectable level of expression in expanded leaves. In half-emerged leaf blades, SacRALF transcripts were found at high levels at the basal portion of the leaf and at low levels at the apical portion. Gene expression analyzes localize SacRALF genes in elongation zones of roots and leaves. Mature leaves, which are devoid of expanding cells, do not show considerable expression of SacRALF genes. Our findings are consistent with SacRALF genes playing a role in plant development potentially regulating tissue expansion.
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Registered trials
Read under generation 80e0d062 · epoch 390. Bibliography from PubMed, PubMed Central and OpenAlex; grants from NIH RePORTER; trial links from ClinicalTrials.gov; estimates, votes and beliefs from the OpenQuestion graph.