Abstract
Native and invasive plants of the riverain region undergo a range of environmental stresses that result in excess reactive oxygen species (ROS). Hydrogen peroxide (H2O2) is a relatively stable and quickly quantifiable way among different ROS. The herbaceous species including Artemisia princeps, Sicyos angulatus, and Solidago altissima were selected. The H2O2 and photosynthetic pigment of leaves were measured, soil samples were analyzed to quantify macronutrients such as total nitrogen (TN), total phosphorus (TP), and soil moisture, and photosynthetic photon flux density (PPFD) was also recorded at different observed sites of Arakawa Tarouemon, Japan. The H2O2 concentration of S. altissima significantly increased with high soil moisture content, whereas A. Princeps and S. angulatus significantly decreased with high soil moisture. In each species, H2O2 was negatively correlated with chlorophyll a (chl a) and chlorophyll b (chl a). When comparing different parameters involving TN, TP, PPFD, and soil moisture content with H2O2 utilizing the general additive model (GAM), only soil moisture content is significantly correlated with H2O2. Hence, this study suggests that H2O2 would be an effective biomarker for quantifying environmental stress within a short time, which can be applied for riparian native and invasive plant species vegetation regulation.
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Claims 6
Claim · model-written summary
S. altissima leaf H2O2 increased significantly with high soil moisture.
- Taxon
- S. altissima
Solidago altissimae0 - Outcome
- H2O2 concentratione0
- Direction
- increasede0
- Setting
- high soil moisture contente0
Organisms pictured · Representative pictures of the matched species, not figures from the paper.
Verbatim
e0“The H2O2 concentration of S. altissima significantly increased with high soil moisture content”
Claim · model-written summary
A. Princeps leaf H2O2 decreased significantly with high soil moisture.
Verbatim
e0“A. Princeps and S. angulatus significantly decreased with high soil moisture”
e1“The H2O2 concentration”
Claim · model-written summary
S. angulatus leaf H2O2 decreased significantly with high soil moisture.
- Taxon
- S. angulatus
Sicyos angulatuse0 - Outcome
- H2O2e1
- Direction
- decreasede0
- Setting
- high soil moisturee0
Organisms pictured · Representative pictures of the matched species, not figures from the paper.
Verbatim
e0“A. Princeps and S. angulatus significantly decreased with high soil moisture”
e1“The H2O2 concentration”
Claim · model-written summary
H2O2 was negatively correlated with chlorophyll a and chlorophyll b in each species.
- Taxon
- Artemisia princeps, Sicyos angulatus, and Solidago altissimaSicyos angulatus
Artemisia princepsSolidago altissimat0 - Compound
- chlorophyll a (chl a) and chlorophyll b (chl a)e0
- Outcome
- H2O2e0
- Direction
- negativelye0
Organisms pictured · Representative pictures of the matched species, not figures from the paper.
Verbatim
e0“In each species, H2O2 was negatively correlated with chlorophyll a (chl a) and chlorophyll b (chl a)”
t0“Artemisia princeps, Sicyos angulatus, and Solidago altissima”
Claim · model-written summary
Among TN, TP, PPFD, and soil moisture, only soil moisture was significantly correlated with H2O2 in the GAM.
Not reportedDirection
Verbatim
e0“only soil moisture content is significantly correlated with H2O2”
e1“riparian native and invasive plant species”
Claim · model-written summary
The authors suggest H2O2 as a rapid biomarker of environmental stress for riparian vegetation regulation.
Verbatim
e0“H2O2 would be an effective biomarker for quantifying environmental stress within a short time, which can be applied for riparian native and invasive plant species vegetation regulation”