ArticlePlant physiology2023
Resting cytosol Ca2+ level maintained by Ca2+ pumps affects environmental responses in Arabidopsis.
Article in Plant physiology, 2023. The graph could read no effect estimate from its abstract, so it casts no vote on the map. Cited by 9 papers.
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The abstract states no effect estimate the extractor could read, or names no intervention and outcome on the map, so this paper lights no cell and moves no belief. It is still indexed, cited and linked below.
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Who cites it
9 citing papers in PubMed, 36 citations in OpenAlex.
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- Evolutionarily conserved BON1 regulates the basal cytosolic CaProceedings of the National Academy of Sciences of the United States of America · 2025Article
- ABA-activated low-nanomolar CaNature plants · 2025Article
- Observing root growth and signalling responses to stress gradients and pathogens using the bi-directional dual-flow RootChip.Lab on a chip · 2024Article
- Article
- Overexpression of stress granule protein TZF1 enhances salt stress tolerance by targetingFrontiers in plant science · 2024Article
- Deficiencies in cluster-2 ALA lipid flippases result in salicylic acid-dependent growth reductions.Physiologia plantarumArticle
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Authors and funding
4 authors at 2 institutions in 1 country.
Funding
Abstract
Calcium ion transporting systems control cytosol Ca2+ levels ([Ca2+]cyt) and generate transient calcium (Ca2+) signatures that are key to environmental responses. Here, we report an impact of resting [Ca2+]cyt on plants from the functional study of calmodulin-regulated Ca2+ pumps or Ca2+-ATPases in Arabidopsis (Arabidopsis thaliana). The plasma membrane-localized pumps ACA8 (autoinhibited Ca2+-ATPase) and ACA10, as well as the vacuole-localized pumps ACA4 and ACA11, were critical in maintaining low resting [Ca2+]cyt and essential for plant survival under chilling and heat-stress conditions. Their loss-of-function mutants aca8 aca10 and aca4 aca11 had autoimmunity at normal temperatures, and this deregulated immune activation was enhanced by low temperature, leading to chilling lethality. Furthermore, these mutants showed an elevated resting [Ca2+]cyt, and a reduction of external Ca2+ lowered [Ca2+]cyt and repressed their autoimmunity and cold susceptibility. The aca8 aca10 and the aca4 aca11 mutants were also susceptible to heat, likely resulting from more closed stomata and higher leaf surface temperature than the wild type. These observations support a model in which the regulation of resting [Ca2+]cyt is critical to how plants regulate biotic and abiotic responses.
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Registered trials
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