Publications by authors named "T Maierhofer"
Article Synopsis
- The evolution of adjustable stomatal pores was crucial for terrestrial life, allowing plants to control CO2 uptake effectively.
- This study explores the signaling pathways in guard cells that manage stomatal movements by comparing the transcriptomes and physiological responses of ferns and flowering plants (angiosperms).
- Findings reveal that while ferns and angiosperms have similar core mechanisms, ferns are less responsive to abscisic acid (ABA), indicating a complex evolutionary history with variations in SLAC channel activation related to specific plant lineages and ecological needs.
Plants can survive in soils of low micromolar potassium (K) concentrations. Root K intake is accomplished by the K channel AKT1 and KUP/HAK/KT type high-affinity K transporters. Arabidopsis HAK5 mutants impaired in low K acquisition have been identified already more than two decades ago, the molecular mechanism, however, is still a matter of debate also because of lack of direct measurements of HAK5-mediated K currents.
View Article and Find Full Text PDFGuard cells control the opening of stomatal pores in the leaf surface, with the use of a network of protein kinases and phosphatases. Loss of function of the CBL-interacting protein kinase 23 (CIPK23) was previously shown to decrease the stomatal conductance, but the molecular mechanisms underlying this response still need to be clarified. CIPK23 was specifically expressed in Arabidopsis guard cells, using an estrogen-inducible system.
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- The study examines the relationship between certain genetic factors (IL-1β polymorphisms) and the history of allergies in patients experiencing complications after joint replacements, specifically those not caused by infection or mechanical issues.
- Researchers found that patients with aseptic complications (SA) had a higher rate of metal allergies compared to asymptomatic patients (AA) and a significant association with the IL1RN VNTR allele 498 bp, particularly in individuals with a history of allergies.
- The findings suggest that the IL1RN allele may increase the risk of symptomatic complications in joint replacement surgeries, especially among those with allergic tendencies.
Chenopodium quinoa uses epidermal bladder cells (EBCs) to sequester excess salt. Each EBC complex consists of a leaf epidermal cell, a stalk cell, and the bladder. Under salt stress, sodium (Na ), chloride (Cl ), potassium (K ) and various metabolites are shuttled from the leaf lamina to the bladders.
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