Publications by authors named "Zsuzsa Lisztes-Szabo"
Article Synopsis
- A deep understanding of carbon cycling in soil-plant systems is crucial for creating accurate models that predict how global carbon reserves respond to human activities.
- Honey, rich in carbon and produced by pollinators, reflects the interactions of millions of plants and insects, and our study of 121 U.S. honey samples reveals the presence of older carbon affected by these interactions.
- We found that some honey samples contained carbon values significantly above expected atmospheric levels, suggesting that sources like soil carbon or plant sugars contributed to this older carbon, shifting sample ages and indicating a new method for tracing carbon in ecosystems.
Trees and shrubs maintain carbon reserves to support their functions during periods when metabolic demand exceeds carbon supply, such as during the dormant season. To gain a better understanding of carbon storage and utilisation dynamics of eight woody plant species in temperate Central Europe, bud scale and leaf samples were collected to determine the radiocarbon age of fresh sprouts in trees and shrubs, at three background sites avoiding local emissions that may influence affect the observed C/C ratio. The accelerator mass spectrometry-based bomb-radiocarbon approach, to determine the age of the mobilized carbon in the plant bud samples from storage, was complemented by stable carbon isotope measurements.
View Article and Find Full Text PDFIn this paper, we present the time-dependent elemental composition and AMS radiocarbon dating results of 36 rape, sunflower and forest honey samples, collected between 1985 and 2018 in geographically close locations. Based on the elemental information, we conclude that bee products regardless the type provide useful environmental information of the previous decades, such as the decreasing trend of airborne Pb emission can be traced. However, radiocarbon results agree less with the atmospheric bomb peak.
View Article and Find Full Text PDFSelenium (Se) is a natural trace element, which shifts its action in a relatively narrow concentration range from nutritional role to toxicity. Although it has been well established that in plants chloroplasts are among the primary targets, the mechanism of toxicity on photosynthesis is not well understood. Here, we compared selenate and red-allotrope elemental selenium nanoparticles (red nanoSe) in in vitro tobacco cultures to investigate their effects on the structure and functions of the photosynthetic machinery.
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