ArticlePlant physiology2003
Characterization of four lectin-like receptor kinases expressed in roots of Medicago truncatula. Structure, location, regulation of expression, and potential role in the symbiosis with Sinorhizobium meliloti.
Article in Plant physiology, 2003. The graph could read no effect estimate from its abstract, so it casts no vote on the map. Cited by 36 papers.
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Who cites it
36 citing papers in PubMed, 84 citations in OpenAlex.
- Pepper G-type Lectin Receptor-like Kinase, CaRLK1, Modulates ABA-Mediated Stomatal Closure and Drought Tolerance.The plant pathology journal · 2026Article
- Transcriptomic and protein-protein interaction network analyses of the molecular mechanisms underlying the mycorrhizal interaction inFrontiers in plant science · 2025Article
- Genome-Wide Comprehensive Identification andGenetics research · 2024Article
- G-type receptor-like kinase AsNIP43 interacts with rhizobia effector nodulation outer protein P and is required for symbiosis.Plant physiology · 2023Article
- Article
- Ligand recognition and signal transduction by lectin receptor-like kinases in plant immunity.Frontiers in plant science · 2023Review
- Genetic manipulation of anti-nutritional factors in major crops for a sustainable diet in future.Frontiers in plant science · 2022Review
- Article
- Lectin receptor-like kinase LecRK-VIII.2 is a missing link in MAPK signaling-mediated yield control.Plant physiology · 2021Article
- Genome-wide identification and characterization of Lectin receptor-like kinase (LecRLK) genes in mungbean (Vigna radiata L. Wilczek).Journal of applied genetics · 2021Article
- Structure and Development of the Legume-Rhizobial Symbiotic Interface in Infection Threads.Cells · 2021Review
- Lectin Receptor-Like Kinases: The Sensor and Mediator at the Plant Cell Surface.Frontiers in plant science · 2020Review
- Article
- Identification and functional analysis ofPeerJ · 2019Article
- Association mapping, transcriptomics, and transient expression identify candidate genes mediating plant-pathogen interactions in a tree.Proceedings of the National Academy of Sciences of the United States of America · 2018Article
- Duplication and diversification of lectin receptor-like kinases (LecRLK) genes in soybean.Scientific reports · 2018Article
- Genome-wide characterization, evolution, and expression analysis of the leucine-rich repeat receptor-like protein kinase (LRR-RLK) gene family in Rosaceae genomes.BMC genomics · 2017Article
- Comparative Study of Lectin Domains in Model Species: New Insights into Evolutionary Dynamics.International journal of molecular sciences · 2017Article
- The right motifs for plant cell adhesion: what makes an adhesive site?Protoplasma · 2017Review
- Genome-wide analysis of lectin receptor-like kinases in Populus.BMC genomics · 2016Article
Corrections and comments
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Authors and funding
9 authors at 4 institutions in 2 countries.
Funding
No grant is acknowledged in the PubMed record.
Abstract
To study the role of LecRK (lectin-like receptor kinase) genes in the legumerhizobia symbiosis, we have characterized the four Medicago truncatula Gaernt. LecRK genes that are most highly expressed in roots. Three of these genes, MtLecRK7;1, MtLecRK7;2, and MtLecRK7;3, encode proteins most closely related to the Class A LecRKs of Arabidopsis, whereas the protein encoded by the fourth gene, MtLecRK1;1, is most similar to a Class B Arabidopsis LecRK. All four genes show a strongly enhanced root expression, and detailed studies on MtLecRK1;1 and MtLecRK7;2 revealed that the levels of their mRNAs are increased by nitrogen starvation and transiently repressed after either rhizobial inoculation or addition of lipochitooligosaccharidic Nod factors. Studies of the MtLecRK1;1 and MtLecRK7;2 proteins, using green fluorescent protein fusions in transgenic M. truncatula roots, revealed that they are located in the plasma membrane and that their central transmembrane-spanning helix is required for correct sorting. Moreover, their lectin-like domains appear to be highly glycosylated. Of the four proteins, only MtLecRK1;1 shows a high conservation of key residues implicated in monosaccharide binding, and molecular modeling revealed that this protein may be capable of interacting with Nod factors. However, no increase in Nod factor binding was found in roots overexpressing a fusion in which the kinase domain of this protein had been replaced with green fluorescent protein. Roots expressing this fusion protein however showed an increase in nodule number, suggesting that expression of MtLecRK1;1 influences nodulation. The potential role of LecRKs in the legume-rhizobia symbiosis is discussed.
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