ArticleThe Journal of membrane biology2006
Control of volume and turgor in stomatal guard cells.
Article in The Journal of membrane biology, 2006. The graph could read no effect estimate from its abstract, so it casts no vote on the map. Cited by 20 papers.
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Who cites it
20 citing papers in PubMed, 68 citations in OpenAlex.
- A high-resolution model of gene expression during Gossypium hirsutum (cotton) fiber development.BMC genomics · 2025Article
- Dual function of overexpressing plasma membrane HScience advances · 2024Article
- Identification and Characterization ofInternational journal of molecular sciences · 2024Article
- Exploring aquaporin functions during changes in leaf water potential.Frontiers in plant science · 2023Review
- Two trehalase isoforms, produced from a single transcript, regulate drought stress tolerance in Arabidopsis thaliana.Plant molecular biology · 2022Article
- Article
- Identification and characterization of HAK/KUP/KT potassium transporter gene family in barley and their expression under abiotic stress.BMC genomics · 2021Article
- Distinct leaf transcriptomic response of water deficient Eucalyptus grandis submitted to potassium and sodium fertilization.PloS one · 2019Article
- The potassium channel FaTPK1 plays a critical role in fruit quality formation in strawberry (Fragaria × ananassa).Plant biotechnology journal · 2018Article
- Divalent Cations Regulate the Ion Conductance Properties of Diverse Classes of Aquaporins.International journal of molecular sciences · 2017Article
- The Dual Role of Nitric Oxide in Guard Cells: Promoting and Attenuating the ABA and Phospholipid-Derived Signals Leading to the Stomatal Closure.Frontiers in plant science · 2016Article
- Aquaporins: highly regulated channels controlling plant water relations.Plant physiology · 2014Review
- Protein phosphorylation in stomatal movement.Plant signaling & behavior · 2014Review
- Open or close the gate - stomata action under the control of phytohormones in drought stress conditions.Frontiers in plant science · 2013Article
- Ion exchangers NHX1 and NHX2 mediate active potassium uptake into vacuoles to regulate cell turgor and stomatal function in Arabidopsis.The Plant cell · 2012Article
- Silver ions disrupt K⁺ homeostasis and cellular integrity in intact barley (Hordeum vulgare L.) roots.Journal of experimental botany · 2012Article
- Review
- The role of vacuolar processing enzymes in plant immunity.Plant signaling & behavior · 2010Review
- The role of vacuolar processing enzyme (VPE) from Nicotiana benthamiana in the elicitor-triggered hypersensitive response and stomatal closure.Journal of experimental botany · 2010Article
- An Integral Hybrid Polymeric Biostimulant to Cope With Drought Stress in Bread Wheat.Physiologia plantarumArticle
Corrections and comments
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Authors and funding
1 author at 1 institution in 1 country.
Funding
No grant is acknowledged in the PubMed record.
Abstract
Water loss from plants is determined by the aperture of stomatal pores in the leaf epidermis, set by the level of vacuolar accumulation of potassium salt, and hence volume and turgor, of a pair of guard cells. Regulation of ion fluxes across the tonoplast, the key to regulation of stomatal aperture, can only be studied by tracer flux measurements. There are two transport systems in the tonoplast. The first is a Ca(2+)-activated channel, inhibited by phenylarsine oxide (PAO), responsible for the release of vacuolar K(+)(Rb(+)) in response to the "drought" hormone, abscisic acid (ABA). This channel is sensitive to pressure, down-regulated at low turgor and up-regulated at high turgor, providing a system for turgor regulation. ABA induces a transient stimulation of vacuolar ion efflux, during which the flux tracks the ion content (volume, turgor), suggesting ABA reduces the set-point of a control system. The second system, which is PAO-insensitive, is responsible for an ion flux from vacuole to cytoplasm associated with inward water flow following a hypo-osmotic transfer. It is suggested that this involves an aquaporin as sensor, and perhaps also as responder; deformation of the aquaporin may render it ion-permeable, or, alternatively, the deformed aquaporin may signal to an associated ion channel, activating it. Treatment with inhibitors of aquaporins, HgCl(2) or silver sulfadiazine, produces a large transient increase in ion release from the vacuole, also PAO-insensitive. It is suggested that this involves the same aquaporin, either rendered directly ion-permeable, or signalling to activate an associated ion channel.
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Registered trials
Read under generation 80e0d062 · epoch 390. Bibliography from PubMed, PubMed Central and OpenAlex; grants from NIH RePORTER; trial links from ClinicalTrials.gov; estimates, votes and beliefs from the OpenQuestion graph.