ArticleInternational journal of molecular sciences2021
Some New Methodological and Conceptual Aspects of the "Acid Growth Theory" for the Auxin Action in Maize (
Article in International journal of molecular sciences, 2021. The graph could read no effect estimate from its abstract, so it casts no vote on the map. Cited by 6 papers.
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6 citing papers in PubMed, 13 citations in OpenAlex.
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- Changes in the morphology traits, anatomical structure of the leaves and transcriptome inFrontiers in plant science · 2023Article
- The Role of Aquaporins in Plant Growth under Conditions of Oxygen Deficiency.International journal of molecular sciences · 2022Review
- The effect of DC electric field on the elongation growth, proton extrusion and membrane potential of Zea mays L. coleoptile cells; a laboratory study.BMC plant biology · 2022Article
- Fusicoccin (FC)-Induced Rapid Growth, Proton Extrusion and Membrane Potential Changes in Maize (International journal of molecular sciences · 2021Article
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2 authors at 1 institution in 1 country.
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Abstract
Two arguments against the "acid growth theory" of auxin-induced growth were re-examined. First, the lack of a correlation between the IAA-induced growth and medium acidification, which is mainly due to the cuticle, which is a barrier for proton diffusion. Second, acid- and the IAA-induced growth are additive processes, which means that acid and the IAA act via different mechanisms. Here, growth, medium pH, and membrane potential (in some experiments) were simultaneously measured using non-abraded and non-peeled segments but with the incubation medium having access to their lumen. Using such an approach significantly enhances both the IAA-induced growth and proton extrusion (similar to that of abraded segments). Staining the cuticle on the outer and inner epidermis of the coleoptile segments showed that the cuticle architecture differs on both sides of the segments. The dose-response curves for the IAA-induced growth and proton extrusion were bell-shaped with the maximum at 10
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