ArticleJournal of experimental botany2012
Rice cultivars with differing salt tolerance contain similar cation channels in their root cells.
Article in Journal of experimental botany, 2012. The graph could read no effect estimate from its abstract, so it casts no vote on the map. Cited by 14 papers.
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Who cites it
14 citing papers in PubMed, 54 citations in OpenAlex.
- Article
- Salt tolerance QTLs of an endemic rice landrace, Horkuch at seedling and reproductive stages.Scientific reports · 2022Article
- Proto Kranz-like leaf traits and cellular ionic regulation are associated with salinity tolerance in a halophytic wild rice.Stress biology · 2022Article
- Physiological evaluation for salt tolerance in green and purple leaf color rice cultivars at seedling stage.Physiology and molecular biology of plants : an international journal of functional plant biology · 2021Article
- How do rice seedlings of landrace Pokkali survive in saline fields after transplantation? Physiology, biochemistry, and photosynthesis.Photosynthesis research · 2021Article
- Article
- Gene Expression analysis associated with salt stress in a reciprocally crossed rice population.Scientific reports · 2019Article
- Plasma-membrane electrical responses to salt and osmotic gradients contradict radiotracer kinetics, and reveal NaPlanta · 2019Article
- Marker-free transgenic rice plant overexpressing pea LecRLK imparts salinity tolerance by inhibiting sodium accumulation.Plant molecular biology · 2019Article
- Tissue-Specific Regulation of NaFrontiers in plant science · 2019Article
- Differential responses of cell wall bound phenolic compounds in sensitive and tolerant varieties of rice in response to salinity.Plant signaling & behavior · 2017Article
- Root transcriptome of two contrasting indica rice cultivars uncovers regulators of root development and physiological responses.Scientific reports · 2016Article
- Transcriptome analysis in different rice cultivars provides novel insights into desiccation and salinity stress responses.Scientific reports · 2016Article
- PDH45 overexpressing transgenic tobacco and rice plants provide salinity stress tolerance via less sodium accumulation.Plant signaling & behavior · 2015Article
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Authors and funding
4 authors at 3 institutions in 2 countries.
Funding
Abstract
Salinity poses a major threat for agriculture worldwide. Rice is one of the major crops where most of the high-yielding cultivars are highly sensitive to salinity. Several studies on the genetic variability across rice cultivars suggest that the activity and composition of root plasma membrane transporters could underlie the observed cultivar-specific salinity tolerance in rice. In the current study, it was found that the salt-tolerant cultivar Pokkali maintains a higher K+/Na+ ratio compared with the salt-sensitive IR20 in roots as well as in shoots. Using Na+ reporter dyes, IR20 root protoplasts showed a much faster Na+ accumulation than Pokkali protoplasts. Membrane potential measurements showed that root cells exposed to Na+ in IR20 depolarized considerably further than those of Pokkali. These results suggest that IR20 has a larger plasma membrane Na+ conductance. To assess whether this could be due to different ion channel properties, root protoplasts from both Pokkali and IR20 rice cultivars were patch-clamped. Voltage-dependent K+ inward rectifiers, K+ outward rectifiers, and voltage-independent, non-selective channels with unitary conductances of around 35, 40, and 10 pS, respectively, were identified. Only the non-selective channel showed significant Na+ permeability. Intriguingly, in both cultivars, the activity of the K+ inward rectifier was drastically down-regulated after plant growth in salt but gating, conductance, and activity of all channel types were very similar for the two cultivars.
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