A Note on Phyto Analysis of<i>P. juliflora</i>(Swartz) DC.

Argal, Surendra; Bhat, Waseem Manzoor; Ahanger, Mohammad Abass; Agarwal, R. M.

doi:10.5958/2231-1750.2016.00010.x

Cited by 3 publications

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“…The effects are exacerbated and become more pronounced with increasing concentrations (Tables 1 and 2, and Figures 1-3). Many researchers have reported that plant parts vary in the content of allelochemical compounds [54]. Thus, it can be stated that leaf extracts may have greater concentrations of allelochemical compounds.…”

Section: Discussionmentioning

confidence: 99%

Allelopathic Potential of Nicotiana glauca Aqueous Extract on Seed Germination and Seedlings of Acacia gerrardii

Abdelmalik,

Alshahrani,

Alqarawi

et al. 2023

Diversity

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Nicotian glauca is a noxious invasive shrub in Saudi Arabia, and it is well known for its harmful impact on biodiversity, competing with native plants using various strategies. Among their strategies is their allelochemical activity, i.e., the use of chemicals to dominate and compete. The present study aims to evaluate the allelopathic potential of N. glauca aqueous extracts from leaves, flowers, and twigs on Acacia gerrardi seed germination and seedling growth. Petri dishes containing extracts from N. glauca parts with different concentrations were incubated in a growth chamber. The results indicated that extracts and concentrations negatively impact seed germination and hypocotyl. Relative to the control, the leaf extract with concentrations of 60 and 100 g/L reduced the seed germination rate by 81.11% and 93.33%, respectively. Flower extracts of similar concentrations decreased germination by 81.91 and 92.55%, while the twig extracts declined germination by 79.56 and 95.69%, respectively. The leaf, flower, and twig extracts (100 g/L) decreased hypocotyl radicle by 76.54, 78.05, and 65.75%, respectively. Overall, the concentrations of 20, 60, and 100 g/L showed the lowest growth indices. Generally, aqueous extracts, particularly 100 g/L, impacted the germination and protrusion of A. gerrardii hypocotyl. In conclusion, our study draws attention to the harmful impact of N. glauca on A. gerrardii regeneration.

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Section: Discussionmentioning

confidence: 99%

Allelopathic Potential of Nicotiana glauca Aqueous Extract on Seed Germination and Seedlings of Acacia gerrardii

Abdelmalik,

Alshahrani,

Alqarawi

et al. 2023

Diversity

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Marigold: From Mandap to Medicine and from Ornamentation to Remediation

Mir¹,

Ahanger²,

Agarwal³

2019

AJPS

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Importance of medicinal plants to health care has been great and herbal preparations are being produced at industrial scale particularly in developing countries. The plant products obtained have a long history of use in therapeutics, aromatherapy and food depending on the chemical constituents and their bioactivity. In the recent past, marigolds have received a great attention in scientific research, because of their multiple use and also the information available about their phytochemistry and bioactivity. Tagetes species commonly known as marigold is native to Mexico, being used for medicinal and ornamental purposes. The plant is useful due to its unique phytoconstituents for a range of diseases and disorders and is reportedly effective against piles, kidney troubles, muscular pain, ulcers and wound healing and the flowers are helpful in fever, stomach and liver complaints and also in eye diseases. In India, marigold is also extensively used on religious and social occasions such as in the beautification of mandaps and pooja places; offerings at temples; marriage decorations and landscape planning due to variable size and colour of its flower. Present review is an effort to bring together the different strategies developed for the growth and cultivation of marigold, its ecophysiological and remediation relevance under a variety of environmental conditions and possible allelopathic potential. It includes reports on pharmacological aspects like antibacterial, antifungal, larvicidal, hepatoprotective, insecticidal, mosquitocidal, nematicidal, wound healing, antioxidant, anticancer and antidiabetic properties/activity of Tagetes.

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Phytotoxic effects of Acacia saligna dry leachates on germination, seedling growth, photosynthetic performance, and gene expression of economically important crops

Alhaithloul

Khan

Musa

et al. 2022

PeerJ

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The influence of dry leachates of Acasia saligna was tested on the seedling growth, photosynthesis, biochemical attributes, and gene expression of the economically important crops, including wheat (Triticum aestivum L.), radish (Raphanus sativus L.), barley (Hordeum vulgare L.) and arugula (Eruca sativa L.). Different concentrations (5%, 10%, 15%, 20%, and 25%) of stem extract (SE) and leaf extract (LE) of A. saligna were prepared, and seedlings were allowed to grow in Petri plates for 8 days. The results showed that all plant species exhibited reduced germination rate, plant height, and fresh and dry weight due to leachates extracts of A. saligna. Moreover, the activities of antioxidant enzymes, including superoxide dismutase (SOD), catalase (CAT), and ascorbate peroxidase (APX), exhibited differential regulation due to the extract treatment. The SOD was increased with increasing the concentration of extracts, while CAT and APX activities were decreased with increasing the extract concentrations. In addition, leachate extract treatment decrease chlorophyll content, photosynthesis, PSII activity, and water use efficiency, with evident effects at their higher concentrations. Furthermore, the content of proline, sugars, protein, total phenols, and flavonoids were reduced considerably due to leachates extract treatments. Furthermore, seedlings treated with high concentrations of LE increased the expression of genes. The present results lead to the conclusion that A. saligna contains significant allelochemicals that interfere with the growth and development of the tested crop species and reduced the crops biomass and negatively affected other related parameters. However, further studies are suggested to determine the isolation and purification of the active compounds present in A. saligna extracts.

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A Note on Phyto Analysis ofP. juliflora(Swartz) DC.

Cited by 3 publications

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Allelopathic Potential of Nicotiana glauca Aqueous Extract on Seed Germination and Seedlings of Acacia gerrardii

Allelopathic Potential of Nicotiana glauca Aqueous Extract on Seed Germination and Seedlings of Acacia gerrardii

Marigold: From Mandap to Medicine and from Ornamentation to Remediation

Phytotoxic effects of Acacia saligna dry leachates on germination, seedling growth, photosynthetic performance, and gene expression of economically important crops

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