ArticleBMC plant biology2025
A novel measuring system enables the noncontact real-time monitoring of very low net concentrations of plant-emitted ions in the air that may serve for plant ion homeostasis research.
Article in BMC plant biology, 2025. The graph could read no effect estimate from its abstract, so it casts no vote on the map. Not yet cited in PubMed.
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Abstract
backgroundPlants emit into the air trace amounts of cations (e.g., K
resultsConcentrations of ions, which had been emitted into the air by two Crassulacean Acid Metabolism plants [Crassula ovata (1 strain; 390 leaves) and Schlumbergera truncata (4 strains; 110 stem nodes per strain)] cultivated under almost the same cultivation conditions (light source, light intensity, light/dark state, flowering/flowerless stage, temperature, and humidity), were measured. Consequently, the system precisely measured very low background ion charge-subtracted, net, and average net concentrations of the relevant concentrations and separately collected cation and anion aggregates. Changes in net and average net ion concentrations in Crassula ovata that were exposed to three light sources (silica light, white fluorescent light, and fluorescent light for plant growth) and in Schlumbergera truncata in the light (white fluorescent light)/dark states and at the flowering/flowerless stages were congruent with their photosynthetic profiles, thus providing indirect evidence for the physiological traits of CAM plants.
conclusionThe performance of a single MALIC unit system to precisely measure very low net ion concentrations in the air was demonstrated successfully, thus meeting its objective. The system monitors the concentrations in a real-time manner and separately collects the aggregates of cations and anions emitted from leaves, stem nodes, and flowers, thus directly providing ion aggregate materials as a novel measurement tool for ion homeostasis research without causing any damage to plants.
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