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Calcium Spiking in Plant Root Hairs Responding to Rhizobium Nodulation Signals
Open accessAbstract
SUMMARY: Rhizobium lipochitooligosaccharide signal molecules stimulate multiple responses in legume host plants, including changes in host gene expression, cell growth, and mitoses leading to root nodule development. The basis for signal transduction in the plant is not known. We examined cytoplasmic free calcium in host root hairs using calcium-sensitive reporter dyes. Image analysis of injected dyes revealed localized periodic spikes in cytoplasmic calcium levels that ensued after a characteristic lag following signal application. Structural features of the signal molecules required to cause nodulation responses in alfalfa are also essential for stimulating calcium spiking. A nonnodulating alfalfa mutant is defective in calcium spiking, consistent with the possibility that this mutant is blocked in an early stage of nodulation signal perception.
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Citations
Cites
Mylona, P., Pawlowski, K., & Bisseling, T. (1995) · The Plant Cell · doi:10.1105/tpc.7.7.869 · Cited by 692
Cited by
Kaló, P., Gleason, C., Edwards, A., Marsh, J., Mitra, R. M., Hirsch, S., Jakab, J., Sims, S., Long, S. R., Rogers, J., et al. (2005) · Science · doi:10.1126/science.1110951 · Cited by 594
Self-citationMitra, R. M., Gleason, C. A., Edwards, A., Hadfield, J., Downie, J. A., Oldroyd, G. E. D., & Long, S. R. (2004) · Proceedings of the National Academy of Sciences · doi:10.1073/pnas.0400595101 · Cited by 494
Self-citationHirsch, S., Kim, J., Muñoz, A., Heckmann, A. B., Downie, J. A., & Oldroyd, G. E. D. (2009) · The Plant Cell · doi:10.1105/tpc.108.064501 · Cited by 448
Finka, A., Cuendet, A. F. H., Maathuis, F. J. M., Saidi, Y., & Goloubinoff, P. (2012) · The Plant Cell · doi:10.1105/tpc.112.095844 · Cited by 367
Invasion by Invitation: Rhizobial Infection in Legumes
Murray, J. D. (2011) · Molecular Plant-Microbe Interactions® · doi:10.1094/mpmi-08-10-0181 · Cited by 245
Metadata
- Authors
- Ehrhardt, D. W., Wais, R., & Long, S. R.
- Venue
- Cell
- Publisher
- Elsevier BV
- Published
- 1996-05
- Volume
- 85
- Issue
- 5
- Pages
- 673-681
- ISSN
- 0092-8674 (ISSN-L)
- OpenAlex
- W1970815708
- Cited by
- 641
- References
- 1
- FWCI
- 42.15
- Type
- journal article
- Language
- en
- Open access
- hybrid
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- Ehrhardt, D. W., Wais, R., & Long, S. R. (1996). Calcium Spiking in Plant Root Hairs Responding to Rhizobium Nodulation Signals. Cell. https://doi.org/10.1016/s0092-8674(00)81234-9
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Bibliographic data: Semantic Scholar, OpenAlex, Crossref.
Contains information from the Semantic Scholar Academic Graph Datasets, made available under the ODC Attribution License (ODC-BY 1.0).
Semantic Scholar’s data is described in: Kinney, R., et al. (2023). The Semantic Scholar Open Data Platform. arXiv:2301.10140.
