Antibacterial activity of Alternanthera philoxeroides (Mart.) Griseb. against bacterial phytopathogens:  Erwinia carotovora, Ralstonia solanacearum and Xanthomonas axonopodis

Akbar, Muhammad; Amin, Adnan; Khalil, Tayyaba; Iqbal, Muhammad Sajjad; Nazir, Aisha; Taswar, A.

doi:10.26651/allelo.j/2021-53-1-1329

Cited by 11 publications

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“…leaves showed the presence of 25 compounds. Among this Acetic acid, 2-(2-methoxycarbonylamino-5-nitrophenylthio)-, methyl ester (31.92%); 1,4-Benzenediol, 2,5-bis(1,1-dimethylethyl) (15.06%); 4-Pyridinecarboxamide, 6-bromo-4,5-dicyano-1,2,3,4-tetrahydro-3,3-dimethyl-2-[[(1methylethyamino] oxy] (8.53%); L-Cysteine, N-(trifluoroacetyl)-, butyl ester, trifluoroacetate (ester) (6.59%); Cyclopentaneundecanoic acid, methyl ester (5.4%) and 3-Bromo-N-(2-thiazolyl) benzamide (3.49%) are dominant ( Akbar et al, 2021 ). LC-MS/MS and GC-MS analysis of an ethanolic extract of A. brasiliana (L.) Kuntze aerial parts were performed ( Alencar Filho et al, 2019 ).…”

Section: Introductionmentioning

confidence: 99%

“…Griseb. : Bhattacherjee and the team had used methanol-soluble fraction obtained from the leaves ( Bhattacherjee et al, 2014 ); Rawani and the team had used aqueous and chloroform: methanol (1:1) extracts of leaves ( Rawani et al, 2011 ); Pulipati and the team had used ethanolic extract obtained from the leaves ( Pulipati et al, 2016 ); Akbar and the team had used methanolic extract of leaves, stem and roots as well as their n-hexane, chloroform and ethyl acetate fractions ( Akbar et al, 2021 ); while Pulipati and Babu had used the methanolic extract of leaves ( Pulipati and Babu, 2020 ). These independent researches left no doubt and validated the antimicrobial feature of Alternanthera philoxeroides (Mart.)…”

Section: Introductionmentioning

confidence: 99%

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The Genus Alternanthera: Phytochemical and Ethnopharmacological Perspectives

et al. 2022

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Ethnopharmacological relevance: The genus Alternanthera (Amaranthaceae) comprises 139 species including 14 species used traditionally for the treatment of various ailments such as hypertension, pain, inflammation, diabetes, cancer, microbial and mental disorders.Aim of the review: To search research gaps through critical assessment of pharmacological activities not performed to validate traditional claims of various species of Alternanthera. This review will aid natural product researchers in identifying Alternanthera species with therapeutic potential for future investigation.Materials and methods: Scattered raw data on ethnopharmacological, morphological, phytochemical, pharmacological, toxicological, and clinical studies of various species of the genus Alternanthera have been compiled utilizing search engines like SciFinder, Google Scholar, PubMed, Science Direct, and Open J-Gate for 100 years up to April 2021.Results: Few species of Alternanthera genus have been exhaustively investigated phytochemically, and about 129 chemical constituents related to different classes such as flavonoids, steroids, saponins, alkaloids, triterpenoids, glycosides, and phenolic compounds have been isolated from 9 species. Anticancer, antioxidant, antibacterial, CNS depressive, antidiabetic, analgesic, anti-inflammatory, and immunomodulator effects have been explored in the twelve species of the genus. A toxicity study has been conducted on 3 species and a clinical study on 2 species.Conclusions: The available literature on pharmacological studies of Alternanthera species reveals that few species have been selected based on ethnobotanical surveys for scientific validation of their traditional claims. But most of these studies have been conducted on uncharacterized and non-standardized crude extracts. A roadmap of research needs to be developed for the isolation of new bioactive compounds from Alternanthera species, which can emerge out as clinically potential medicines.

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Section: Introductionmentioning

confidence: 99%

Section: Introductionmentioning

confidence: 99%

The Genus Alternanthera: Phytochemical and Ethnopharmacological Perspectives

et al. 2022

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“…The samples shared common compounds, which included Benzeneacetaldehyde, Quinoline, 2-Ethyl-, Pipradrol, Methyl 11-Methyl-Dodecanoate, N-Hexadecanoic Acid, Phytol, and 11,14,17-Eicosatrienoic Acid, Methyl Ester. Various compounds in A. philoxeroides were reported, including the highest concentration of the acetic acid 2-(2-methoxycarbonylamino-5-nitrophenylthio)-, methyl ester (31.9%), followed by 1,4-benzenediol, 2,5-bis(1,1-dimethylethyl)-(15.06%) [40]. These compounds were considered to be responsible for the observed biological activity in the study.…”

Section: Major Bioactive Compounds In Aquatic Paper Sheets Determined...mentioning

confidence: 78%

A Green Approach to Valorizing Abundant Aquatic Weeds for Nutrient-Rich Edible Paper Sheets Production in Bangladesh

Suraiya,

Bristy,

Ali

et al. 2023

Clean Technol.

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The rapid and unprecedented expansion of the global population highlights concerns about the sufficiency of food resources to sustain this growth. This study investigates and substantiates the feasibility of renewable food resources in order to meet the nutritional requirements of consumers. Three edible aquatic weeds, helencha (Enhydra fluctuans), malancha (Alternanthera philoxeroides), and kalmi (Ipomoea aquatica), were used to produce edible paper sheets. The composition of the raw aquatic weeds and paper sheet samples was analyzed, including the proximate composition, amino acid content, minerals and heavy metal contents, and bioactive compounds. The dried raw aquatic weeds and paper sheets showed similar proximate compositions, with carbohydrates being the highest component (50.38–64.63%), followed by crude protein (15.25–19.13%), ash (9.30–15.88%), and lipid (1.55–3.43%). The raw weeds and paper sheets were rich in essential minerals like Na, Ca, and Zn with contents ranging from 27.7 mg/100 g to 30.4 mg/100 g, 126.8 mg/100 g to 489.65 mg/100 g, and 4.5 mg/100 g to 16.3 mg/100 g, respectively. Acceptable levels of heavy metals, including Ni, Pb, and Cu, were found. The paper sheets contained seven essential and eight non-essential amino acids. Among the essential amino acids, the phenylalanine content was the highest at 2735.9 mg/100 g in E. fluctuans paper sheets, followed by methionine at 2377.29 mg/100 g in the raw E. fluctuans and histidine at 1972.6 mg/100 g in E. fluctuans paper sheets. A. philoxeroides sheets showed the highest total amino acid content (16,146.81 mg/100 g), while I. aquatica showed the lowest (13,118.67 mg/100 g). The aquatic weed paper sheets were rich in bioactive compounds, and the numbers in E. fluctuans, A. philoxeroides, and I. aquatica paper sheets were 31, 33, and 40, respectively. There were no significant changes in the nutritional content of the aquatic weeds in paper sheet form compared with the raw weeds, which suggests promising prospects for their production and consumption as a source of nutrition and bioactive compounds.

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“…Such exploration of endophytic fungi holds promise for devising innovative and eco-friendly strategies to manage A. philoxeroides infestations, thereby contributing to India's broader canvas of sustainable agricultural practices and other hand In India and Bangladesh, the plant's leaves are commonly consumed as a leafy vegetable. Meanwhile, in China, this versatile plant has found widespread use as a traditional remedy for treating various viral diseases such as measles, influenza, and haemorrhagic fever (Khatun et al, 2013;Zhang et al, 2018;Akbar et al, 2021;Nahar et al, 2022).…”

Section: Historical Taxonomic Updatementioning

confidence: 99%

Molecular identification and phylogenetic analysis of Alternaria perpunctulata GVKNSV7 causing leaf spot disease on Alternanthera philoxeroides (Mart.) Griseb : A first report in India

Gera,

Kumar,

Babu

2024

JANS

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Leaf spot disease caused by Alternaria perpunctulata (E.G. Simmons) poses a significant threat to Alternanthera philoxeroides (Mart.) Griseb, commonly known as alligator weed and Ceylon Spinach, contributes to persistent weed proliferation in Indian paddy fields. This study focuses on the molecular identification and phylogenetic analysis of the Alternaria perpunctulata strain GVKNSV7, which is responsible for leaf spot disease on A. philoxeroides. Diseased plant leaves were collected from Kakumanu Mandal, Guntur, and local vegetable markets of Visakhapatnam, Andhra Pradesh, India, in December 2021, revealing symptomatic samples with pink to reddish spots on A. philoxeroides leaves. Employing a comprehensive approach that included morphological assessment, pathogenicity testing, and ITS region sequencing, the isolated fungus was conclusively identified as A. perpunctulata with a high sequence similarity of 98.54%. Molecular comparison with sequences in the NCBI database further validated this identification. The resulting genetic sequence, formally catalogued as "Alternaria perpunctulata GVKNSV7," with the GenBank accession number OQ073752, has been successfully submitted to the NCBI database. This study emphasized the utility of ITS sequencing and molecular analyses for accurately identifying and documenting emerging pathogens. Such documentation provides essential insights for developing future bioherbicides and effective weed management strategies. Furthermore, it highlights the potential use of A. philoxeroides as a leafy vegetable, contributing to food security and agricultural sustainability. Overall, this research contributes to understanding Alternaria perpunctulata and its implications for crop health and management practices.

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Antibacterial activity of Alternanthera philoxeroides (Mart.) Griseb. against bacterial phytopathogens: Erwinia carotovora, Ralstonia solanacearum and Xanthomonas axonopodis

Cited by 11 publications

References 0 publications

The Genus Alternanthera: Phytochemical and Ethnopharmacological Perspectives

The Genus Alternanthera: Phytochemical and Ethnopharmacological Perspectives

A Green Approach to Valorizing Abundant Aquatic Weeds for Nutrient-Rich Edible Paper Sheets Production in Bangladesh

Molecular identification and phylogenetic analysis of Alternaria perpunctulata GVKNSV7 causing leaf spot disease on Alternanthera philoxeroides (Mart.) Griseb : A first report in India

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