» Articles » PMID: 32512473

Interactive Effects and Competitive Shift Between Triticum Aestivum L. (wheat) and Chenopodium Album L. (fat-hen) Under Ambient and Elevated Ozone

Overview
Journal Environ Pollut
Date 2020 Jun 9
PMID 32512473
Citations 2
Authors
Affiliations
Soon will be listed here.
Abstract

The aim of this study was to evaluate the impact of ambient and elevated O (ambient+20 ppb) under the competition between a crop plant Triticum aestivum L.cv. HD 2967 and a weed, Chenopodium album L. (fat-hen) grown singly and in mix-culture (1:1) using open-top chambers. The competition posed a relatively lesser effect on the growth of fat-hen as compared to the wheat under ambient O at both the sampling time, however, the effects of stress factors (competition and O) were more pronounced at the reproductive stage on both the plants. Fat-hen possess a stronger antioxidative potential against elevated O (eO), irrespective of competition, making it more resistant against the existing stress factors. Significant stimulation in the activities of CAT, POX, GR and SOD in fat-hen and non-enzyme antioxidants (AsA, thiols, and total phenolics) might have helped the plants to pose a superior ROS scavenging potential under competition + O. Strong stimulation of flavonols (kaempferol and quercetin) and phenolic acid (p-coumaric acid and ferulic acid) in fat-hen not only helped the plants to withstand the oxidative damage under eO but also might have influenced the allelopathic interaction (competition + O). Yield loss in wheat was observed to be larger under competition + O (33.1%) followed by O (20.5%) than only under competition (16.3%). The study suggests stringent weed management strategies to be established recognizing the existing threat from O to the productivity of a staple crop-wheat.

Citing Articles

Elevated tropospheric ozone and crop production: potential negative effects and plant defense mechanisms.

Nowroz F, Hasanuzzaman M, Siddika A, Parvin K, Garcia Caparros P, Nahar K Front Plant Sci. 2024; 14:1244515.

PMID: 38264020 PMC: 10803661. DOI: 10.3389/fpls.2023.1244515.


A Compiled Update on Nutrition, Phytochemicals, Processing Effects, Analytical Testing and Health Effects of : A Non-Conventional Edible Plant (NCEP).

Singh S, Singh A, Hallan S, Brangule A, Kumar B, Bhatia R Molecules. 2023; 28(13).

PMID: 37446567 PMC: 10343354. DOI: 10.3390/molecules28134902.