Morpho-anatomical study of Ageratum conyzoides

Santos, Rafaela Ferreira dos; Nunes, Bárbara M.; Sá, Rafaela Damasceno; Soares, Luiz Alberto Lira; Randau, Karina Perrelli

doi:10.1016/j.bjp.2016.07.002

Cited by 24 publications

(33 citation statements)

References 34 publications

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“…The decrease in wet and dry weeds of A. conyzoides is not entirely due to the morphological characteristics of the weeds, but also from pathogenic fungal infections. This is in line with more stomata found on A. conyzoides than other weeds (Santos et al, 2016).…”

Section: Single Treatment Of Weed Typessupporting

confidence: 84%

“…Ageratum conyzoides actually exhibited a higher disease incidence and disease intensity than other weeds and was significantly different from Synedrella nodiflora, Wedelia trilobata and Amaranthus spinosus. A. conyzoides have amphistomata properties, with stomata anomositis and anisositis, being the first more commonly found (Santos et al, 2016). The large number of stomata causes these weeds to be more easily infected by the pathogenic fungus conidia.…”

Section: Single Treatment Of Weed Typesmentioning

confidence: 99%

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The Potensial of Fusarium sp. and Chaetomium sp. as Biological Control Agents of Five Broad-Leaf Weeds

Soesanto

Mugiastuti

Manan

2020

Caraka Tani J. Sustain. Agric.

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Weeds are a major problem in crop cultivation, either in food crops, horticulture, plantations or forests and cause a decrease in the quality and quantity of production. Weed biocontrol, especially by using plant pathogenic fungi, has received attention but is still lacking in application. The purpose of this study was to determine the potential of Fusarium sp. and Chaetomium sp. as biological control agents against five broad-leaf weeds (Asystasia gangetica L., Ageratum conyzoides L., Synendrella nodiflora (L.) Gaertn., Wedelia trilobata (L.) U.S. Hitchc. and Amaranthus spinosus L.). The variables observed were the incubation period, disease incidence, disease intensity, as well as weed fresh and dry weight. The results of this study showed that the two pathogenic fungi, Fusarium sp. and Chaetomium sp., can cause a more intensive disease in A. conizoides than A. spinosus. A. gangetica, S. nodiflora and W. trilobata; however, the fungi have not been able to inhibit the growth and kill the weeds. Therefore, improvement need to be done by modifying the media to increase the ability of fungi to control weeds.

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Section: Single Treatment Of Weed Typessupporting

confidence: 84%

Section: Single Treatment Of Weed Typesmentioning

confidence: 99%

The Potensial of Fusarium sp. and Chaetomium sp. as Biological Control Agents of Five Broad-Leaf Weeds

Soesanto

Mugiastuti

Manan

2020

Caraka Tani J. Sustain. Agric.

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“…The macroscopical character of the leaves such as colour, odour, taste, margin, base, apex and so forth were studied and thus can help for identification of the plant of Ageratum conyzoides. Microscopical evaluation revealed the present of trichomes, collenchyma and parenchyma, xylem and phloem (Santosh, 2016). Anomocytic stomata are also seen.…”

Section: Discussionmentioning

confidence: 95%

“…Ageratum is one of the genera which belong to the family Asteraceae and consist 30 species (Okunade, 2002). Among the species, Ageratum conyzoides L. is commonly known as billy goat weed in English words "a geras" meaning non-aging and conyzoides from "Konyz" the Greek name of Inula helenium which the plant resembles (Santosh, 2016). A. conyzoides is a tropical plant found commonly in western and eastern region of the African continent, in some region of Asia and South America (Bhatt et al, 2012).…”

Section: Introductionmentioning

confidence: 99%

Pharmacognostic profile of the leaf of Ageratum conyzoides

Jyrwa¹,

Jamir²,

Mazumder³

et al. 2018

Proceedings of the Mizoram Science Congress 2018 (MSC 2018) - Perspective and Trends in the Development of Science Education An

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Ageratum conyzoides Linn. (Asteraceae), commonly known as billy-goat weed and white weed, is an important plant in the Indian traditional medicine. It is widely used for the treatment of dysentery, diarrhoea, injuries, cuts, snake bites, pneumonia, and as an insecticide and nematicide. This work was an attempt to standardise and identify the leaf samples.: The fresh leaves of A. conyzoides were collected, from which macroscopic and quantitative microscopic studies were performed by using standard procedure to determine the diagnostic features for the identification and standardization. The leaves were found to have ovate, sub-acute and crenate with ciliate margins, the stem is greenish yellow covered with fine white hairs and flowers are white to mauve in colour, arranged in close terminal inflorescences. Light and electron microscopic data of the cross-section showed the presence of vascular bundles, parenchyma cells, collenchyma cells and multicellular non-glandular trichomes, upper and lower epidermal cells. Anomocytic stomata are seen in both upper and lower epidermis. Quantitative microscopic (such as Vein islet and vein termination, stomata number and stomatal index) were also determined after the leaves were boiled in chloral hydrate solution to remove the chlorophyll. Our results would be important in authentication of the leaf and analysing the pharmacopoeial standards of A. conyzoides.

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“…Conyzoides, on the other hand is derived from 'Konyz' the Greek term of 'inutahelenium' which the plant look like (Novaes et al, 2013;Okunade, 2002). The weed of A. conyzoides has been known for centuries, for its therapeutic properties and has been employed for treatment of different health conditions, such as wounds and burns, for antimicrobial and antimalaria activities, for many bacteria and fungi infections, antitetanus, arthrosis, headaches and dyspnea, pneumonia, analgesic, anti-inflammatory, antiasthmatic, antispasmodic and haemostatic effects, stomach ailments, gynaecological diseases, leprosy and other skin diseases (Santos et al, 2016). A wide range of chemical compounds including flavonoids, chromenes, alkaloids, cumarins, benzofurans, terpenoids and sterols, have been isolated from this species.…”

mentioning

confidence: 99%

Chemical Substances and in-Vivo Antiplasmodial Activity of Ageratum Conyzoides in Plasmodium Berghei Infected Mice

Ifijen¹,

Maliki²,

Ogbeide³

et al. 2019

jasem

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Malaria afflicts millions of people globally, particularly in tropical Africa; it is transmitted to humans through a bite of an Anopheles mosquito. Phytochemical, acute toxicity and in-vivo antiplasmodial activity of the leaves of Ageratum conyzoides were examined to study its effects on Mice that have been infected with the malaria parasite. Phytochemical screening of the methanol extract revealed the presence of secondary metabolites such as terpenoids, flavonoids, alkaloids, steroids and chromene. The LD50 was established at ˃ 1000 mg/kg body weight of mice. The methanol extract of A. conyzoides displayed intrinsic prophylactic and curative anti-malaria activity. At 200 mg/kg and 100 mg/kg body weight of mice, the extract revealed the highest percentage inhibition (83 and 61) for the prophylactic and curative study respectively. The acute toxicity study showed that A. conyzoides extract is relatively safe within the study administered doses. The methanol extract of the prophylactic study against Plasmodium berghei revealed an increase in the level of significance at administered portions of 100, 200 and 400 mg/kg in comparison with 0.2 ml distilled water and 10 mg/kg chloroquine. The methanol extract of the therapeutic study against Plasmodium berghei revealed a slight increase in the level of significance at administered doses of 100 and 200 mg/kg, however, no significant effect was observed for 400 mg/kg compared to the negative control and reference drug. The outcome implies that methanol leave extract of A. conyzoides possesses meaningful antiplasmodial activities and could be a promising source of novel antimalarial.Keywords: Malaria, Ageratum conyzoides, phytochemical screening, acute toxicity, Plasmodium berghei

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Morpho-anatomical study of Ageratum conyzoides

Cited by 24 publications

References 34 publications

The Potensial of Fusarium sp. and Chaetomium sp. as Biological Control Agents of Five Broad-Leaf Weeds

The Potensial of Fusarium sp. and Chaetomium sp. as Biological Control Agents of Five Broad-Leaf Weeds

Pharmacognostic profile of the leaf of Ageratum conyzoides

Chemical Substances and<i> in-Vivo</i> Antiplasmodial Activity of <i>Ageratum Conyzoides</i> in <i>Plasmodium Berghei</i> Infected Mice

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