Allelopathic effects of the aqueous extract of<i>Rhazya stricta</i>on growth and metabolism of<i>Salsola villosa</i>

Alqarawi, Abdulaziz A.; Kumar, Ashwani; Al-Arjani, Al-Bandari Fahad; Dar, Basharat A.; Wirth, Stephan; Davranov, Kakhramon; Egamberdieva, Dilfuza

doi:10.1080/11263504.2018.1439117

Cited by 17 publications

(12 citation statements)

References 72 publications

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“…More specifically, exudates from R. stricta leaves were observed to reduce the content of membrane polyunsaturated fatty acids and phospholipids, while hampering membrane functions and photosynthetic capacity. They also restricted the growth of S. villosa roots and stems [ 83 ]. Another study on aqueous leaf extracts of Prosopis juliflora (Sw.) DC.…”

Section: Resultsmentioning

confidence: 99%

Phytotoxic Potential and Phenolic Profile of Extracts from Scrophularia striata

Mousavi

Karami

Haghighi

et al. 2021

Plants

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A large number of plants produce secondary metabolites known as allelochemicals that are capable of inhibiting the germination of competitive species. This process is known as allelopathy and is mediated by several classes of chemicals, among which phenolic compounds are the most frequent. Thus, plant allelochemicals can be used to control weeds in agricultural systems. In the present work, we analyzed the phenolic profile and phytotoxic potential of different extracts (pure water or water: ethanol 50:50) from Scrophulariastriata plants that were collected from two ecological regions in Iran (Pahleh and Lizan). The total polyphenolic content (TPC), as evaluated by the Folin-Ciocolteau method, ranged from 28.3 mg/g in the aqueous extract obtained from the Lizan ecotype to 39.6 mg/g in the hydroalcoholic extract obtained from the Pahleh ecotype. Moreover, HPLC analysis was aimed at determining the content of eight phenolic compounds, namely eugenol, rosmarinic acid, hesperetin, hesperedin, trans-ferulic acid, vanillin, and caffeic acid. According to the results, rosmarinic acid appeared to be the most abundant component. The phytotoxic activities of S.striata extracts were examined on the seed germination of a crop species, Lepidium sativum, and two weeds, Chenopodium album and Malva sylvestris. All extracts showed inhibitory effects on these species. The efficiency of these inhibitory effects depended on the type of plant species, origin, and concentration of extract. The highest phytotoxic activity was caused by approximately 1% concentration of extract. The most susceptible weed was M. sylvestris. The extracts that were obtained from the Pahleh ecotype, notably the hydroalcoholic ones, showed higher phytotoxicity against L. sativum, C. album and M. sylvestris. These results encourage further studies to support the use of S. striata as a source of bioherbicides.

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Section: Resultsmentioning

confidence: 99%

Phytotoxic Potential and Phenolic Profile of Extracts from Scrophularia striata

Mousavi

Karami

Haghighi

et al. 2021

Plants

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“…e present findings are in accordance with Das et al (2012), who found that the aqueous leachates of leaf litter of seven tree species significantly (p < 0.01) reduced the SVI of gram (chickpea) seeds. Alqarawi et al (2018) reported a strong inhibitory effect of aqueous leaf extracts of Rhazya stricta on SVI of Salsola villosa, while Oraon and Mondal (2020) reported that the SVI of chickpea decreased significantly (p < 0.001) with increased concentrations of aqueous leaf extracts of Putranjiva roxburghii.…”

Section: Discussionmentioning

confidence: 99%

Allelopathic Effect of Lamiaceous Weeds on Seed Germination and Early Growth of Aromatic Rice (Oryza sativa ‘Gobindobhog’)

Oraon

Mondal

2021

Acta Agrobot

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The present study reveals the allelopathic effect of aqueous leaf and root extracts of Hyptis suaveolens (L.) Poit. and Leucas cephalotes (Roth) Spreng. on seed germination and early growth of Oryza sativa ‘Gobindobhog.’ Leaf and root extracts at different concentrations (0.5%, 1%, 2.5%, 4%, and 5%) were used to study the effect in laboratory-based experiments. After 5 days of incubation, seed germination and root and shoot length of rice seedlings were measured, and both H. suaveolens and L. cephalotes showed allelopathic effects on seed germination and growth parameters. Hyptis suaveolens showed a more pronounced effect at 5% concentration of aqueous leaf and root extracts than L. cephalotes . The inhibitory effects were as follows: root length > seed germination > shoot length. Both H. suaveolens and L. cephalotes impede seed germination and early growth of rice by releasing water-soluble allelochemicals from their leaves and roots.

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“…Also, total lipid content in Salsola villosa increased in response to application of some plant extracts (Alqarawi et al . 2018). Moreover, low‐dose gamma ionizing radiation resulted in an increase in total oil content of sunflower compared to control plants (Vaizoğullar et al .…”

Section: Discussionmentioning

confidence: 99%

Protective role of fat hen (Chenopodium album L.) extract and gamma irradiation treatments against fusarium root rot disease in sunflower plants

2021

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One of the most drastic diseases causing economic losses in sunflower crops is fusarium root rot caused by Fusarium solani. Plant extracts and ionizing radiation provide alternative environmentally safe control agents that have a significant role in controlling and overcoming this fungal plant pathogen. In the present study, the effect of different concentrations of aqueous Chenopodium album extract (2.0, 2.5, 3.0, 3.5, 4.0, 4.5, 5.0, 5.5 and 6.0%) and gamma radiation at a dose of 6 Gy were examined for their efficacy in inducing resistance of sunflower plants against fusarium root rot caused by F. solani MG‐3 by evaluation of some physiological and biochemical parameters of infected and healthy plants under greenhouse conditions. The pre‐treatment of sunflower seeds with 6% C. album extract and 6 Gy gamma radiation reduced fusarium incidence from 47.49% to 28.25%. Also, nucleic acid content, ascorbic acid, α‐tocopherol, anthocyanin, total flavonoids, proline, glycine betaine and lipid components significantly increased in irradiated infected plants treated with C. album extract, while H2O2 content and lipid peroxidation markedly decreased as compared with healthy control plants. Moreover, treatment with gamma radiation reduced the amount of unsaturated fatty acids through accumulation of saturated fatty acids compared with non‐irradiated plants; treatment with C. album extract also enhanced the content of unsaturated fatty acids, with a noticeable decrease in saturated fatty acid content. Hence, C. album extract and gamma radiation can be used to enhance biological control of fusarium root rot of sunflower plants.

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Allelopathic effects of the aqueous extract ofRhazya strictaon growth and metabolism ofSalsola villosa

Cited by 17 publications

References 72 publications

Phytotoxic Potential and Phenolic Profile of Extracts from Scrophularia striata

Phytotoxic Potential and Phenolic Profile of Extracts from Scrophularia striata

Allelopathic Effect of Lamiaceous Weeds on Seed Germination and Early Growth of Aromatic Rice (Oryza sativa ‘Gobindobhog’)

Protective role of fat hen (Chenopodium album L.) extract and gamma irradiation treatments against fusarium root rot disease in sunflower plants

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