An assessment of growth, floral morphology, and metabolites of a medicinal plant Sida cordifolia L. under the influence of elevated ozone

Ansari, Naushad; Agrawal, Madhoolika; Agrawal, Shashi Bhushan

doi:10.1007/s11356-020-10340-y

Cited by 21 publications

(8 citation statements)

References 54 publications

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“…Importantly, from the pollinator attraction perspective, petal size was affected by O3 exposure, with flowers developing under higher O3 exposures having smaller petals than those developing under CFA. Other studies have shown the negative effects of O3 on individual flower weight [24], number [3,16,25] and corolla length [51], but to the best of our knowledge this is the first study reporting the negative effects of O3 on petal size. In species where flowers are tightly grouped in inflorescences, the effect on inflorescence size may be important, but in E. paularense the flowers within the inflorescence are clearly separated from each other and do not open synchronously.…”

Section: Discussionmentioning

confidence: 64%

The Effects of Ozone on Visual Attraction Traits of Erodium paularense (Geraniaceae) Flowers: Modelled Perception by Insect Pollinators

Prieto‐Benítez

Ruiz-Checa

Bermejo

et al. 2021

Plants

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Ozone (O3) effects on the visual attraction traits (color, perception and area) of petals are described for Erodium paularense, an endangered plant species. Plants were exposed to three O3 treatments: charcoal-filtered air (CFA), ambient (NFA) and ambient + 40 nL L−1 O3 (FU+) in open-top chambers. Changes in color were measured by spectral reflectance, from which the anthocyanin reflectance index (ARI) was calculated. Petal spectral reflectance was mapped onto color spaces of bees, flies and butterflies for studying color changes as perceived by different pollinator guilds. Ozone-induced increases in petal reflectance and a rise in ARI under NFA were observed. Ambient O3 levels also induced a partial change in the color perception of flies, with the number of petals seen as blue increasing to 53% compared to only 24% in CFA. Butterflies also showed the ability to partially perceive petal color changes, differentiating some CFA petals from NFA and FU+ petals through changes in the excitation of the UV photoreceptor. Importantly, O3 reduced petal area by 19.8 and 25% in NFA and FU+ relative to CFA, respectively. In sensitive species O3 may affect visual attraction traits important for pollination, and spectral reflectance is proposed as a novel method for studying O3 effects on flower color.

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Section: Discussionmentioning

confidence: 64%

The Effects of Ozone on Visual Attraction Traits of Erodium paularense (Geraniaceae) Flowers: Modelled Perception by Insect Pollinators

Prieto‐Benítez

Ruiz-Checa

Bermejo

et al. 2021

Plants

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“…Again, evidence suggests that O 3 could affect trajectories toward these goals, sometimes in positive ways (e.g. Ansari et al 2021) but more likely negatively through compromising fodder value and food security (e.g. Tai et al 2014).…”

Section: Tropospheric Ozone and Restoration Goalsmentioning

confidence: 99%

Out of sight, Out of mind — but not Out of scope: the need to consider ozone (O₃) in restoration science, policy, and practice

Perring

Bullock

Alison

et al. 2022

Restoration Ecology

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Restoration ecologists have local-to global-scale ambitions in a policy framework of sustainable development goals and reversing biodiversity loss. Emphasis is given to environmental alteration, typically considering land degradation and climate change. Other related environmental drivers, such as pollution, receive less attention. Here we emphasize that terrestrial restoration discourse needs to consider tropospheric ozone (O 3 ) pollution. O 3 's pervasive influence on plants and other ecosystem components provides for the possibility of consequences at community and ecosystem levels. The precursor chemicals that lead to O 3 formation are increasing, precipitously so in rapidly industrializing regions of the world. Yet, a review of critical restoration guidance and journals suggests that because O 3 is out of sight, it remains out of mind. Based on a narrative cross-discipline literature review, we examine: (1) How O 3 could affect the achievement of restoration goals and (2) How restoration interventions could feedback on tropospheric O 3 . Evidence, currently limited, suggests that O 3 could impair the achievement of restoration goals to as great an extent as other drivers, but, in general, we lack direct quantification. Restoration interventions (e.g. tree planting) that may be considered successful can actually exacerbate O 3 pollution with negative consequences for food security and human health. These wide-ranging effects, across multiple goals, mean that O 3 is not out of scope for restoration science, policy, and practice. In detailing a strategic ozone-aware restoration agenda, we suggest how restoration science and policy can quantify O 3 's influence, while outlining steps practitioners can take to adapt to/mitigate the impacts of O 3 pollution.

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“…Secondary metabolites are also known to play an important role in plant–environment interactions, coping with numerous biotic and abiotic stresses. It has been observed that environmental stress such as O 3 pollution causes significant alterations in plants’ metabolic profiles [ 24 , 25 , 26 ]. Ground-level O 3 generates oxidative stress in plants via the generation of reactive oxygen species, which disturbs normal cellular homeostasis, bringing about alterations in various morphological, physiological and biochemical processes [ 25 , 27 , 28 ].…”

Section: Introductionmentioning

confidence: 99%

“…It has been observed that environmental stress such as O 3 pollution causes significant alterations in plants’ metabolic profiles [ 24 , 25 , 26 ]. Ground-level O 3 generates oxidative stress in plants via the generation of reactive oxygen species, which disturbs normal cellular homeostasis, bringing about alterations in various morphological, physiological and biochemical processes [ 25 , 27 , 28 ]. The oxidative burst experienced by the plants under O 3 exposure stimulates the antioxidant production and biosynthesis of SMs [ 29 ].…”

Section: Introductionmentioning

confidence: 99%

“…The oxidative burst experienced by the plants under O 3 exposure stimulates the antioxidant production and biosynthesis of SMs [ 29 ]. A number of SMs such as terpenoids, flavonoids, phenolics are observed to increase under elevated O 3 [ 25 , 30 ]. Most O 3 -based studies have focused on the nutritional contents of agricultural crops and their bioactive phytochemical constituents are completely ignored.…”

Section: Introductionmentioning

confidence: 99%

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Role of Elevated Ozone on Development and Metabolite Contents of Lemongrass [Cymbopogon flexuosus (Steud.) (Wats.)]

et al. 2023

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The present study was conducted to assess the effect of elevated ozone stress on the development and metabolite contents of lemongrass, a medicinal plant. The experimental plant was exposed to two elevated ozone concentrations (ambient + 15 ppb, and ambient + 30 ppb) using open-top chambers. Samplings were carried out at 45 and 90 days after transplantation (DAT), for the analysis of different characteristics, while the metabolite contents of leaves and essential oils were analyzed at 110 DAT. Both the doses of elevated ozone had notable negative effects on the carbon fixation efficiency of plants, resulting in a significant reduction in plant biomass. Enzymatic antioxidant activity increased during the second sampling, which suggests that the scavenging of reactive oxygen species was more prominent in lemongrass during the later developmental stage. The results of the present study showed a stimulated diversion of resources towards the phenylpropanoid pathway, which is made evident by the increase in the number and contents of metabolites in foliar extract and essential oils of plants grown at elevated ozone doses, as compared to ambient ozone. Elevated ozone not only upregulated the contents of medicinally important components of lemongrass, it also induced the formation of some pharmaceutically active bio compounds. On the basis of this study, it is expected that increasing ozone concentrations in near future will enhance the medicinal value of lemongrass. However, more experiments are required to validate these findings.

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An assessment of growth, floral morphology, and metabolites of a medicinal plant Sida cordifolia L. under the influence of elevated ozone

Cited by 21 publications

References 54 publications

The Effects of Ozone on Visual Attraction Traits of Erodium paularense (Geraniaceae) Flowers: Modelled Perception by Insect Pollinators

The Effects of Ozone on Visual Attraction Traits of Erodium paularense (Geraniaceae) Flowers: Modelled Perception by Insect Pollinators

Out of sight, Out of mind — but not Out of scope: the need to consider ozone (O₃) in restoration science, policy, and practice

Role of Elevated Ozone on Development and Metabolite Contents of Lemongrass [Cymbopogon flexuosus (Steud.) (Wats.)]

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An assessment of growth, floral morphology, and metabolites of a medicinal plant Sida cordifolia L. under the influence of elevated ozone

Cited by 21 publications

References 54 publications

The Effects of Ozone on Visual Attraction Traits of Erodium paularense (Geraniaceae) Flowers: Modelled Perception by Insect Pollinators

The Effects of Ozone on Visual Attraction Traits of Erodium paularense (Geraniaceae) Flowers: Modelled Perception by Insect Pollinators

Out of sight, Out of mind — but not Out of scope: the need to consider ozone (O3) in restoration science, policy, and practice

Role of Elevated Ozone on Development and Metabolite Contents of Lemongrass [Cymbopogon flexuosus (Steud.) (Wats.)]

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Product

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Out of sight, Out of mind — but not Out of scope: the need to consider ozone (O₃) in restoration science, policy, and practice