Allelopathic effect of Ashwagandha against the germination and radicle growth of Cicer arietinum and Triticum aestivum

Chandra, Sangita; Chatterjee, Priyanka; Dey, Protapaditya; Bhattacharya, Sanjib

doi:10.4103/0974-8490.99082

Cited by 9 publications

(3 citation statements)

References 7 publications

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“…Three replications were set for each treatment. The radicle and hypocotyl lengths were measured after the incubation period and the elongation percentage was calculated using equation (1) below modified from Chandra et al [62]: bold-italicEbold-italiclbold-italicobold-italicnbold-italicgbold-italicabold-italictbold-italicibold-italicobold-italicn%=XY×bold100 where, X = Treated (crude extract or pure compound) mean radicle/hypocotyl length and Y = Control mean radicle/hypocotyl length.…”

Section: Methodsmentioning

confidence: 99%

Involvement of Carnosic Acid in the Phytotoxicity of Rosmarinus officinalis Leaves

Appiah

Mardani

Omari

et al. 2018

Toxins

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Weeds are rapidly developing resistance to synthetic herbicides, and this can pose a threat to the ecosystem. Exploring allelopathic species as an alternative weed control measure can help minimize the ecological threat posed by herbicide-resistant weeds. In this study, we aimed to evaluate the contribution of some polyphenols to the allelopathy of rosemary (Rosmarinus officinalis L.). The phytotoxic effects of rosemary (leaves, roots, inflorescences, and stems) crude extracts were tested on lettuce (Lactuca sativa L.). Soils incorporated with dried rosemary leaves were also tested on test plants. Reversed-phase high-performance liquid chromatography (HPLC) analysis was used to determine the content of some polyphenols (caffeic, ferulic, gallic, rosmarinic, carnosic, and chlorogenic acids) in rosemary. The specific activity and total activity of crude extracts and individual compounds were evaluated using lettuce. The crude extract of rosemary leaves showed the highest growth inhibitory effect among the rosemary organs tested. Soil amended with rosemary leaf debris reduced the dry matter and seed emergence of lettuce. Carnosic acid was the main compound detected in rosemary leaves and had a high specific activity when tested on lettuce. During the seed germination period, there was observed filter paper coloration among the test plants treated with carnosic acid (250 μg/mL). The high concentration and strong inhibitory effect of carnosic acid could explain the inhibitory activity of the rosemary leaf extract. Hence, we conclude based on the total activity estimation that carnosic acid among the other tested compounds is the major allelochemical in rosemary leaves.

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Section: Methodsmentioning

confidence: 99%

Involvement of Carnosic Acid in the Phytotoxicity of Rosmarinus officinalis Leaves

Appiah

Mardani

Omari

et al. 2018

Toxins

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“…Invasion driven by allelopathy was also excluded for the invasive grass Cenchrus echinatus , in which the formation of dense covers reduced the germination of resident seeds [ 41 ]. However, as Sa leaves produce withanolides with known antifungal and insecticidal properties, targeted investigations are needed to unravel whether the release of these compounds could exert a direct or indirect selective effect on given plant species [ 51 , 52 , 53 ].…”

Section: Discussionmentioning

confidence: 99%

The Novel Invader Salpichroa origanifolia Modifies the Soil Seed Bank of a Mediterranean Mesophile Forest

Arduini,

Alessandrini

2024

Plants

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The composition and structure of soil seed banks provide insight into the long-term implications of plant invasions on resident communities. The effect of Salpichroa origanifolia (Sa) on the seed bank of a coastal mesophile forest (Tuscany) was studied by growing Sa-rhizomes in soils from low and high invaded sites, in full sun and canopy shade. Sa growth patterns, and the composition, biomass, nitrogen, and phosphorus contents of seedlings which emerged from seed banks were determined. Seed bank abundance and richness were also determined from under and 2 m apart established Sa populations. Sa plants’ leaf traits and biomass allocation changed in response to light conditions. The germination of seed bank seedlings was not affected or even promoted by Sa, while their biomass as well as N and P uptake were more than halved in both light conditions, leading to a progressive depletion of the forest seed bank. Richness was lower under established Sa populations. Sa seedlings exerted a greater suppression on residents than Sa adults, and these appeared more competitive against their own seedlings than on residents. Sa is an invader of concern for Mediterranean forests because of its adaptability to shaded conditions, the competitiveness of its seedlings, and its vegetative spread by means of rhizomes.

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“…Three replications were set for each treatment. The radicle and hypocotyl lengths were measured after the incubation period (the test plant species were measured on day three) and the elongation percentage was calculated using Equation (1), which was modified from Chandra et al [ 107 ].

…”

Section: Methodsmentioning

confidence: 99%

Influence of β-Ionone in the Phytotoxicity of the Rhizome of Iris pallida Lam

Sothearith,

Appiah,

Sophea

et al. 2024

Plants

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Iris pallida Lam., also known as Sweetie Iris, is a perennial ornamental and medicinal plant that produces a wide range of secondary metabolites. The Sweetie Iris was recently reported to have high allelopathic properties with the potential to be explored in sustainable weed management. This study aimed to identify and evaluate the contributions of compounds involved in the inhibitory effects of the rhizome of Sweetie Iris. High-performance liquid chromatography (HPLC) analysis was used to determine the content of β-ionone in the rhizome of Sweetie Iris. The phytotoxicity of β-ionone was evaluated on lettuce (Lactuca sativa L.) and other test plants. The content of β-ionone in the crude extract of Sweetie Iris rhizome was found to be 20.0 mg g−1 by HPLC analysis. The phytotoxicity bioassay showed that β-ionone had strong inhibitory activity on the growth of lettuce (Lactuca sativa L.) and the other test plants, including Taraxacum officinale, Stellaria media, Eleusine indica, Amaranthus hybridus, Vicia villosa, and Brassica napus. At a concentration of 23.0 µg mL−1, β-ionone inhibited the growth of all test plant species treated. Therefore, β-ionone is an active compound among the other allelopathic substances contained in the rhizome of Sweetie Iris.

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Allelopathic effect of Ashwagandha against the germination and radicle growth of Cicer arietinum and Triticum aestivum

Cited by 9 publications

References 7 publications

Involvement of Carnosic Acid in the Phytotoxicity of Rosmarinus officinalis Leaves

Involvement of Carnosic Acid in the Phytotoxicity of Rosmarinus officinalis Leaves

The Novel Invader Salpichroa origanifolia Modifies the Soil Seed Bank of a Mediterranean Mesophile Forest

Influence of β-Ionone in the Phytotoxicity of the Rhizome of Iris pallida Lam

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