Histochemical Localization of Phenols in Healthy and Diseased Banana Roots

Mace, M. E.

doi:10.1111/j.1399-3054.1963.tb08367.x

Cited by 147 publications

(79 citation statements)

References 11 publications

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“…The screening was performed for triterpenes/steroids, alkaloids, anthraquinones, coumarins, flavonoids, saponins, tannins, and phenolic acids according to standard method [17][18][19][20][21] .…”

Section: Qualitative Phytochemical Screeningmentioning

confidence: 99%

In Vitro Antioxidant and Antimicrobial Properties of Cucumis Sativus L. Peel Extracts

John¹,

Priyadarshini²,

Monica³

et al. 2018

Int. Res. J. Pharm.

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The present study evaluated the phytochemicals, antioxidant and antimicrobial potential; and thin layer chromatographic studies of Cucumis sativus L. peel extracts. The total flavonoid content was assessed using Aluminium Chloride reagent method. The antioxidant potential was evaluated using in vitro assays viz DPPH radical scavenging assay, FRAP and Phosphomolybdenum assay. The antimicrobial activity was determined against Shigella flexneri, E coli, Staphylococcus aureus and Klebsiella pneumonia using Agar Well Diffusion method. Qualitative phytochemical analysis confirmed the presence of alkaloids, saponins, diterpenes, steroids and flavonoids. Total Flavonoid content in the Cucumis sativus L. peel was 3.50 µg/mg QE. Cucumis sativus L. peel showed highest radical scavenging activity of 71% at the concentration of 600 µg/mL. In determination of antioxidant activity via FRAP and Phosphomolybdenum assay cucumber peel extract showed highest absorbance of 0.80 and 0.94 respectively at the concentration of 300 µg/mL. The peel extracts inhibited the growth of all the tested pathogens by forming inhibition zones ranging from 11-21 mm. Thin layer chromatographic studies of the cucumber peel extracts constituted different coloured phytochemical compounds with different Rf values. This study highlights the pharmacological properties of Cucumis sativus L. peel.

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Section: Qualitative Phytochemical Screeningmentioning

confidence: 99%

In Vitro Antioxidant and Antimicrobial Properties of Cucumis Sativus L. Peel Extracts

John¹,

Priyadarshini²,

Monica³

et al. 2018

Int. Res. J. Pharm.

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“…Following vascular infection by any of a variety of organisms, including F. oxysporum, the phenolic-storing cells that occur regularly in many plants, including banana and tomato (Mace 1963) can release the stored phenolics and diffuse out their cellular compartments into the vascular elements. According to Beckman (2000), there is substantial correlative evidence, that these phenolic-storing cells, produced during normal differentiation and strategically located and kinetically poised in xylem parenchyma tissues, serve as a sensing and defence-triggering system.…”

Section: Introductionmentioning

confidence: 99%

Induced resistance to Fusarium wilt of banana by exogenous applications of indoleacetic acid

Fernández‐Falcón

Borges

Borges-Pérez

2004

phyto

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Fusarium wilt of banana (Panama disease), caused by Fusarium oxysporum f.sp. cubense, is a soilborne systemic disease which occludes host vascular system. We report here two experiments on resistance induction with banana plants (cv. Dwarf Cavendish) carried out in glass greenhouse with different indoleacetic acid treatments, which are capable of inducing resistance to Panama disease. The results obtained in these experiments suggest that the exogenous application of indoleacetic acid to banana plants induce resistance to Panama disease and that the resistance induction is more effective when performed using low doses and frequent applications. This work seems to confirm the role played by indoleacetic acid according to Beckman’s models as, one of the major defence factors of the host plant in vascular wilt diseases.La maladie de Panama du bananier, causée par Fusarium oxysporum f.sp. cubense, est une maladie systémique qui obstrue le système vasculaire de l’hôte. Nous présentons ici deux expériences sur l’induction de la résistance chez le bananier (cv. Dwarf Cavendish) effectuées en serre avec différents traitements d’acide indole-acétique capables d’augmenter la résistance à la maladie de Panama. Les résultats obtenus dans ces expériences suggèrent que l’application exogène d’acide indole-acétique aux bananiers augmente la résistance à la maladie de Panama et que l’induction de résistance est plus efficace lorsque les doses d’acide indole-acétique employées sont faibles et que les applications sont fréquentes. Ce travail semble confirmer le rôle joué par l’acide indole-acétique selon les modèles de Beckman, comme un des facteurs de défense principaux de la plante hôte face aux maladies de flétrissement vasculaire

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“…Studies on phenols of healthy and diseased banana roots indicated that the major phenol, 3-hydroxytyramine, occurred in an unconjugated form, unlike those above, and furthermore was localized within cytoplasmic masses in scattered xylem parenchyma (Mace, 1963). Following infection, discoloration appeared in similarly scattered xylem parenchyma and was diffused by gels into xylem vessels.…”

Section: Xylem Discolorationmentioning

confidence: 99%

Electron microscopy of elm infected with Ceratocystis ulmi (Buism) C Moreau

MacDonald

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Histochemical Localization of Phenols in Healthy and Diseased Banana Roots

Cited by 147 publications

References 11 publications

In Vitro Antioxidant and Antimicrobial Properties of Cucumis Sativus L. Peel Extracts

In Vitro Antioxidant and Antimicrobial Properties of Cucumis Sativus L. Peel Extracts

Induced resistance to Fusarium wilt of banana by exogenous applications of indoleacetic acid

Electron microscopy of elm infected with Ceratocystis ulmi (Buism) C Moreau

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