Hormesis and paradoxical effects of pea (Pisum sativum L.) parameters upon exposure to formaldehyde in a wide range of doses

Formaldehyde is a widespread pollutant of soil near roads including agricultural lands. Non-monotonic changes (hormesis and paradoxical effects) in chlorophyll (Ch) and carotenoid (Car) contents, the lipid peroxidation (LP) rate in plant leaves and growth parameters (GP) of plants can be caused by v...

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Bibliographic Details
Published in:Ecotoxicology (London) 2018-07, Vol.27 (5), p.569-577
Main Author: Erofeeva, Elena A.
Format: Article
Language:English
Subjects:
Agricultural land
Aldehydes
Carotenoids
Chlorophyll
Chlorophylls
Earth and Environmental Science
Ecology
Ecotoxicology
Environment
Environmental Management
Ethylenediaminetetraacetic acid
Exposure
Formaldehyde
Formaldehyde - adverse effects
Hormesis
Lipid peroxidation
Lipid Peroxidation - drug effects
Lipids
Parameters
Peas
Peroxidation
Photosynthesis - drug effects
Pisum sativum
Pisum sativum - drug effects
Pisum sativum - growth & development
Pisum sativum - physiology
Pollutants
Shoots
Soil
Soil Pollutants - adverse effects
Soil pollution
Soil solution
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Summary:Formaldehyde is a widespread pollutant of soil near roads including agricultural lands. Non-monotonic changes (hormesis and paradoxical effects) in chlorophyll (Ch) and carotenoid (Car) contents, the lipid peroxidation (LP) rate in plant leaves and growth parameters (GP) of plants can be caused by various pollutants. Hormesis is a biphasic dose-response phenomenon, characterised by low-dose stimulation and high-dose inhibition. The remaining types of non-monotonic responses are classified as paradoxical effects. While most authors who have studied formaldehyde and plants considered gaseous exposure to shoots, the effect of this pollutant in soil solution has been poorly examined. Thus, we studied the non-monotonic changes in Ch and Car contents, LP rate and GP in pea ( Pisum sativum L.) upon exposure to formaldehyde in solution, at a wide range of sublethal concentrations from 0.063 × 10 −2 to 0.16 g L −1 . With formaldehyde exposure, LP and Ch contents had paradoxical effects (triphasic and multiphase changes, accordingly), while Car level did not change and GP exhibited a hormetic response. The date showed that pea parameters display diverse types of non-monotonic responses upon exposure to the same formaldehyde concentrations. High pollutant concentrations (0.08–0.16 g L −1 ) increased LP and significantly decreased GP (to 2.3–2.5 times compared to the control), while the Ch content was increased. Lower concentrations (
ISSN:0963-9292
1573-3017
DOI:10.1007/s10646-018-1928-2