2023
DOI: 10.1111/pce.14763
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A new method to measure aquaporin‐facilitated membrane diffusion of hydrogen peroxide and cations in plant suspension cells

Jahed Ahmed,
Ahmed Ismail,
Lei Ding
et al.

Abstract: Plant aquaporins (AQPs) facilitate the membrane diffusion of water and small solutes, including hydrogen peroxide (H2O2) and, possibly, cations, essential signalling molecules in many physiological processes. While the determination of the channel activity generally depends on heterologous expression of AQPs in Xenopus oocytes or yeast cells, we established a genetic tool to determine whether they facilitate the diffusion of H2O2 through the plasma membrane in living plant cells. We designed genetic constructs… Show more

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Cited by 5 publications
(1 citation statement)
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“…The passage of H2O2 between compartments and has been proposed, based on physico-chemical considerations, to be facilitated by water channel aquaporins (Wang et al 2020). This proposal has been experimentally confirmed in plant suspension culture cells in an elegantly designed experiment (Ahmed et al 2023).and thus providing support for the notion that H2O2 can be a transducing signal between closely associated chloroplasts and the nucleus.…”
Section: Discussionmentioning
confidence: 91%
“…The passage of H2O2 between compartments and has been proposed, based on physico-chemical considerations, to be facilitated by water channel aquaporins (Wang et al 2020). This proposal has been experimentally confirmed in plant suspension culture cells in an elegantly designed experiment (Ahmed et al 2023).and thus providing support for the notion that H2O2 can be a transducing signal between closely associated chloroplasts and the nucleus.…”
Section: Discussionmentioning
confidence: 91%