An assessment of dose-dependent UV-B sensitivity in Eclipta alba: Biochemical traits, antioxidative properties, and wedelolactone yield

Rai, Kshama; Agrawal, Shashi Bhushan

doi:10.1007/s11356-021-13963-x

Cited by 6 publications

(2 citation statements)

References 46 publications

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“…Maximum accumulation of flavonoids was found to occur in the younger leaves of G. biloba under moderate exposure to UV-B radiation [ 45 ]. A study devised by Rai and Agrawal [ 51 ] under the intermittent and continuous treatment of elevated UV-B (ambient ± 7.2 kJ m −2 d −1 ) on three developmental stages (45, 75 and 110 DAG; days after germination) of Eclipta alba reported a maximum content of wedelolactone in leaves at 75 DAG under intermittent treatment. However, at a later developmental stage (110 DAG), the wedelolactone content showed a reduction under both treatments; this might have occurred due to the degradation of its precursor over an extended period of time.…”

Section: Role Of Developmental Stages On Accumulation Of Secondary Me...mentioning

confidence: 99%

Ultraviolet-B and Heavy Metal-Induced Regulation of Secondary Metabolites in Medicinal Plants: A Review

Pandey

Agrawal

2023

Metabolites

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Despite a rich history and economic importance, the potential of medicinal plants has not been fully explored under different abiotic stress conditions. Penetration of UV-B radiation and contamination of heavy metals are two important environmental stress for plants with remarkable influence on the defense-related and pharmaceutically important secondary metabolites of medicinal plants. UV-B and heavy metal contamination may become a critical issue that either positively or negatively affects the quality and quantity of secondary metabolites. Such effects may result from changes in the expression level of genes that encode the corresponding enzymes or the inactivation and/or stimulation of specific enzymes involved in the different biosynthetic pathways of the secondary metabolites. Therefore, a comprehensive study of the impact of UV-B and heavy metals individually and in combination on the biosynthesis and accumulation of secondary metabolites in medicinal plants is discussed in the present review.

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Section: Role Of Developmental Stages On Accumulation Of Secondary Me...mentioning

confidence: 99%

Ultraviolet-B and Heavy Metal-Induced Regulation of Secondary Metabolites in Medicinal Plants: A Review

Pandey

Agrawal

2023

Metabolites

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“…High intensity UV radiation, in particular the UV-B component (280–315 nm), can have a strong impact on several morphophysiological, molecular, and biochemical traits of plants (Jaiswal et al 2022 ; Pandey et al 2022a , 2022b ; Rai and Agrawal 2021 , 2022 ). Therefore, plants have evolved a fine UV-B perception mechanism and transduction pathway (Kliebenstein et al 2002 ; Rizzini et al 2011 ) to avoid intracellular impairments.…”

Section: Introductionmentioning

confidence: 99%

Do changes in Lactuca sativa metabolic performance, induced by mycorrhizal symbionts and leaf UV-B irradiation, play a role towards tolerance to a polyphagous insect pest?

Santin

Zeni

Grassi

et al. 2023

Environ Sci Pollut Res

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The increased ultraviolet radiation (UV) due to the altered stratospheric ozone leads to multiple plant physiological and biochemical adaptations, likely affecting their interaction with other organisms, such as pests and pathogens. Arbuscular mycorrhizal fungi (AMF) and UV-B treatment can be used as eco-friendly techniques to protect crops from pests by activating plant mechanisms of resistance. In this study, we investigated plant (Lactuca sativa) response to UV-B exposure and Funneliformis mosseae (IMA1) inoculation as well as the role of a major insect pest, Spodoptera littoralis. Lettuce plants exposed to UV-B were heavier and taller than non-irradiated ones. A considerable enrichment in phenolic, flavonoid, anthocyanin, and carotenoid contents and antioxidant capacity, along with redder and more homogenous leaf color, were also observed in UV-B-treated but not in AMF-inoculated plants. Biometric and biochemical data did not differ between AMF and non-AMF plants. AMF-inoculated plants showed hyphae, arbuscules, vesicles, and spores in their roots. AMF colonization levels were not affected by UV-B irradiation. No changes in S. littoralis-feeding behavior towards treated and untreated plants were observed, suggesting the ability of this generalist herbivore to overcome the plant chemical defenses boosted by UV-B exposure. The results of this multi-factorial study shed light on how polyphagous insect pests can cope with multiple plant physiological and biochemical adaptations following biotic and abiotic preconditioning.

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Individual and combined effects of chromium and ultraviolet-B radiation on defense system, ultrastructural changes, and production of secondary metabolite psoralen in a medicinal plant Psoralea corylifolia L

Pandey

Agrawal

2022

Environ Sci Pollut Res

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An assessment of dose-dependent UV-B sensitivity in Eclipta alba: Biochemical traits, antioxidative properties, and wedelolactone yield

Cited by 6 publications

References 46 publications

Ultraviolet-B and Heavy Metal-Induced Regulation of Secondary Metabolites in Medicinal Plants: A Review

Ultraviolet-B and Heavy Metal-Induced Regulation of Secondary Metabolites in Medicinal Plants: A Review

Do changes in Lactuca sativa metabolic performance, induced by mycorrhizal symbionts and leaf UV-B irradiation, play a role towards tolerance to a polyphagous insect pest?

Individual and combined effects of chromium and ultraviolet-B radiation on defense system, ultrastructural changes, and production of secondary metabolite psoralen in a medicinal plant Psoralea corylifolia L

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