ArticleThe Journal of membrane biology2008
Mechanosensitive ion channels in chara: influence of water channel inhibitors, HgCl2 and ZnCl2, on generation of receptor potential.
Article in The Journal of membrane biology, 2008. The graph could read no effect estimate from its abstract, so it casts no vote on the map. Cited by 5 papers.
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Who cites it
5 citing papers in PubMed, 16 citations in OpenAlex.
- Proton flows across the plasma membrane in microperforated characean internodes: tonoplast injury and involvement of cytoplasmic streaming.Protoplasma · 2014Article
- Aquaporin AqpZ is involved in cell volume regulation and sensitivity to osmotic stress in Synechocystis sp. strain PCC 6803.Journal of bacteriology · 2012Article
- Silver ions disrupt K⁺ homeostasis and cellular integrity in intact barley (Hordeum vulgare L.) roots.Journal of experimental botany · 2012Article
- Involvement of protein synthesis in recovery from refractory period of electrical depolarization induced by osmotic stimulation in Chara corallina.Journal of plant research · 2011Article
- Membrane stretching triggers mechanosensitive Ca2+ channel activation in Chara.The Journal of membrane biology · 2009Article
Corrections and comments
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Authors and funding
3 authors at 2 institutions in 1 country.
Funding
No grant is acknowledged in the PubMed record.
Abstract
Characean internodal cells generate receptor potential (DeltaE (m)) in response to mechanical stimuli. Upon a long-lasting stimulus, the cells generated DeltaE (m) at the moment of both compression and decompression, and the amplitude of DeltaE (m) at the moment of decompression, (DeltaE (m))(E), was larger than that at compression. The long-lasting stimulus caused a membrane deformation (DeltaD (m)) having two components, a rapid one, (DeltaD (m))(rapid), at the moment of compression and a slower one, (DeltaD (m))(slow), during the long-lasting compression. We assumed that (DeltaD (m))(slow) might have some causal relation with the larger DeltaE (m) at (DeltaE (m))(E). We treated internodal cells with either HgCl(2) or ZnCl(2), water channel inhibitors, to decrease (DeltaD (m))(slow). Both inhibitors attenuated (DeltaD (m))(slow) during compression. Cells treated with HgCl(2) generated smaller (DeltaE (m))(E) compared to nontreated cells. On the other hand, cells treated with ZnCl(2) never attenuated (DeltaE (m))(E) but, rather, amplified it. Thus, the amplitude of (DeltaD (m))(slow) did not always show tight correlation with the amplitude of (DeltaE (m))(E). Furthermore, when a constant deformation was applied to an internodal cell in a medium with higher or lower osmotic value, a cell having higher turgor always showed a larger (DeltaE (m))(E). Thus, we concluded that changes in tension at the membrane may be the most important factor to induce activation of mechanosensitive Ca(2+) channel.
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