ArticleThe Plant cell2009
A small GTPase of the Rab family is required for root hair formation and preinfection stages of the common bean-Rhizobium symbiotic association.
Article in The Plant cell, 2009. The graph could read no effect estimate from its abstract, so it casts no vote on the map. Cited by 33 papers.
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Who cites it
33 citing papers in PubMed, 66 citations in OpenAlex.
- Cullin 3 substrate-adaptor protein 1 (MtCSP1) modulates nodulation through interaction with the GTPase ARFA1.Scientific reports · 2026Article
- The non-specific phospholipase C of common bean PvNPC4 modulates roots and nodule development.PloS one · 2025Article
- Adaptive gene loss in the common bean pan-genome during range expansion and domestication.Nature communications · 2024Article
- Emerging role of small GTPases and their interactome in plants to combat abiotic and biotic stress.Protoplasma · 2023Review
- Visualization of the Crossroads between a Nascent Infection Thread and the First Cell Division Event inInternational journal of molecular sciences · 2022Article
- Transcriptomic analysis of Mesoamerican and Andean Phaseolus vulgaris accessions revealed mRNAs and lncRNAs associated with strain selectivity during symbiosis.Scientific reports · 2022Article
- A phosphorus-limitation induced, functionally conserved DUF506 protein is a repressor of root hair elongation in plants.The New phytologist · 2022Article
- NIPK, a protein pseudokinase that interacts with the C subunit of the transcription factor NF-Y, is involved in rhizobial infection and nodule organogenesis.Frontiers in plant science · 2022Article
- Auxin Response Factor 2 (ARF2), ARF3, and ARF4 Mediate Both Lateral Root and Nitrogen Fixing Nodule Development inFrontiers in plant science · 2021Article
- TheFrontiers in plant science · 2021Article
- SPIKE1 Activates the GTPase ROP6 to Guide the Polarized Growth of Infection Threads inThe Plant cell · 2020Article
- Reprogramming of Root Cells during Nitrogen-Fixing Symbiosis Involves Dynamic Polysome Association of Coding and Noncoding RNAs.The Plant cell · 2020Article
- Genome-wide association reveals genetic variation of lint yield components under salty field conditions in cotton (Gossypium hirsutum L.).BMC plant biology · 2020Article
- Genetic Factors Associated With Nodulation and Nitrogen Derived From Atmosphere in a Middle American Common Bean Panel.Frontiers in plant science · 2020Article
- A GMC Oxidoreductase GmcA Is Required for Symbiotic Nitrogen Fixation inFrontiers in microbiology · 2020Article
- Small GTPases in plant biotic interactions.Small GTPases · 2019Review
- The PvNF-YA1 and PvNF-YB7 Subunits of the Heterotrimeric NF-Y Transcription Factor Influence Strain Preference in theFrontiers in plant science · 2019Article
- Differential tetraspanin genes expression and subcellular localization during mutualistic interactions in Phaseolus vulgaris.PloS one · 2019Article
- Transcriptomic signature of drought response in pearl millet (Pennisetum glaucum (L.) and development of web-genomic resources.Scientific reports · 2018Article
- Comparative phylogenetic and expression analysis of small GTPases families in legume and non-legume plants.Plant signaling & behavior · 2018Article
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Authors and funding
4 authors at 2 institutions in 1 country.
Funding
No grant is acknowledged in the PubMed record.
Abstract
Legume plants are able to establish a symbiotic relationship with soil bacteria from the genus Rhizobium, leading to the formation of nitrogen-fixing root nodules. Successful nodulation requires both the formation of infection threads (ITs) in the root epidermis and the activation of cell division in the cortex to form the nodule primordium. This study describes the characterization of RabA2, a common bean (Phaseolus vulgaris) cDNA previously isolated as differentially expressed in root hairs infected with Rhizobium etli, which encodes a protein highly similar to small GTPases of the RabA2 subfamily. This gene is expressed in roots, particularly in root hairs, where the protein was found to be associated with vesicles that move along the cell. The role of this gene during nodulation has been studied in common bean transgenic roots using a reverse genetic approach. Examination of root morphology in RabA2 RNA interference (RNAi) plants revealed that the number and length of the root hairs were severely reduced in these plants. Upon inoculation with R. etli, nodulation was completely impaired and no induction of early nodulation genes (ENODs), such as ERN1, ENOD40, and Hap5, was detected in silenced hairy roots. Moreover, RabA2 RNAi plants failed to induce root hair deformation and to initiate ITs, indicating that morphological changes that precede bacterial infection are compromised in these plants. We propose that RabA2 acts in polar growth of root hairs and is required for reorientation of the root hair growth axis during bacterial infection.
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