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Peer-reviewedCC BYInternational journal of molecular sciences

ROS Equilibrium in the Digestive Fluid of the Nepenthes × ventrata Trap at Various Developmental Stages.

  • Agnieszka Wal1
  • Pawel Staszek1
  • Klaudia Jusińska2
  • Bartłomiej Dominiak3
  • Patrycja Witek1
  • Agnieszka Gniazdowska1
  • Urszula Krasuska1
  1. 1Department of Botany and Plant Physiology, Institute of Biology, Warsaw University of Life Sciences, Nowoursynowska 159, 02-776 Warsaw, Poland.
  2. 2Department of Nanobiotechnology, Institute of Biology, Warsaw University of Life Science, Nowoursynowska 159, 02-776 Warsaw, Poland.
  3. 3Department of Physiological Sciences, Institute of Veterinary Medicine, Warsaw University of Life Sciences, Nowoursynowska 159, 02-776 Warsaw, Poland.
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Abstract

Carnivorous plants, such as Nepenthes (Nepenthaceae), possess a unique feature: the external digestion of animal-origin food. Nepenthes × ventrata pitchers are filled with digestive fluid containing: enzymes, small regulatory compounds and reactive oxygen species (ROS), which also act as signalling molecules. The aim of this study was to investigate the pattern of ROS content and to characterise enzymatic and non-enzymatic ROS modulators in the digestive fluid of N. × ventrata at various developmental stages of the pitcher. Significant changes were observed in the levels of hydrogen peroxide (H₂O₂) and hydroxyl radical (•OH) throughout trap development. The highest concentration of H₂O₂ was found in aged pitchers, while the highest level of •OH was recorded in freshly opened immature traps. These findings corresponded with superoxide dismutase and class III peroxidase activities. After maturation of the trap, there was an increase in the activity of diamine and polyamine oxidases. We suggest that the production of ROS in the digestive fluid of pitcher plants at different stages of trap development is controlled by the redox modulatory system. These findings provide a basis for further research into how the regulation of ROS content supports trap development and digestive functions.

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Cite

BibTeXRIS
BibTeX
@article{wal2026equilibrium,
  title = {{ROS Equilibrium in the Digestive Fluid of the Nepenthes × ventrata Trap at Various Developmental Stages.}},
  author = {Agnieszka Wal and Pawel Staszek and Klaudia Jusińska and Bartłomiej Dominiak and Patrycja Witek and Agnieszka Gniazdowska and Urszula Krasuska},
  journal = {International journal of molecular sciences},
  year = {2026},
  month = sep,
  doi = {10.3390/ijms27198462},
  url = {https://europepmc.org/article/MED/42883710},
  note = {CC BY},
}
RIS
TY  - JOUR
TI  - ROS Equilibrium in the Digestive Fluid of the Nepenthes × ventrata Trap at Various Developmental Stages.
AU  - Agnieszka Wal
AU  - Pawel Staszek
AU  - Klaudia Jusińska
AU  - Bartłomiej Dominiak
AU  - Patrycja Witek
AU  - Agnieszka Gniazdowska
AU  - Urszula Krasuska
PY  - 2026
DA  - 2026/09/23
JO  - International journal of molecular sciences
DO  - 10.3390/ijms27198462
UR  - https://europepmc.org/article/MED/42883710
AB  - Carnivorous plants, such as Nepenthes (Nepenthaceae), possess a unique feature: the external digestion of animal-origin food. Nepenthes × ventrata pitchers are filled with digestive fluid containing: enzymes, small regulatory compounds and reactive oxygen species (ROS), which also act as signalling molecules. The aim of this study was to investigate the pattern of ROS content and to characterise enzymatic and non-enzymatic ROS modulators in the digestive fluid of N. × ventrata at various developmental stages of the pitcher. Significant changes were observed in the levels of hydrogen peroxide (H₂O₂) and hydroxyl radical (•OH) throughout trap development. The highest concentration of H₂O₂ was found in aged pitchers, while the highest level of •OH was recorded in freshly opened immature traps. These findings corresponded with superoxide dismutase and class III peroxidase activities. After maturation of the trap, there was an increase in the activity of diamine and polyamine oxidases. We suggest that the production of ROS in the digestive fluid of pitcher plants at different stages of trap development is controlled by the redox modulatory system. These findings provide a basis for further research into how the regulation of ROS content supports trap development and digestive functions.
SN  - 1422-0067
ER  -