Effectiveness of Massep (Ocimum gratissimum L.) essential oil and its nanoemulsion toward Sclerotium rolfsii, Phytophthora infestans and Alternaria solani, pathogens associated with tomato rot diseases

Kamsu, Francine Pamela Noumegna; Dikongue, Fabiola Jeanette Ndondoni; Ngouana, Vincent; Tchinda, Eliane Sonwa; Jiogue, Mylaure Benissa; Ambata, Henri Tibo Ambata; Tchameni, Séverin Nguemezi; Sameza, Modeste Lambert; Jazet, Pierre Michel Dongmo

doi:10.1016/j.bcab.2022.102591

Cited by 3 publications

(2 citation statements)

References 37 publications

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“…These tests were carried out on solid media on A. alternata and P. carica-papayae. It was carried out according to the protocol described by Lahou [15] and used by Kamsu et al [16]. In Petri dishes each containing 10 ml of PDA (Potato Dextrose Agar) culture medium supplemented with antibiotics, sterilised for 15 minutes at 121°C and cooled to 45°C.…”

Section: Evaluation Of Antifungal Activity On Mycelial Growthmentioning

confidence: 99%

In vitro and in situ Activity of Cymbopogon citratus Essential Oil Against Alternaria alternata and Phomopsis carica-papayae, Causal Agents of Papaya Leaf Diseases

Victor,

Priscille,

Steve

et al. 2024

JPS

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Papaya cultivation is considered to be one of the most important fruit-growing activities in Cameroon, and plays a vital role in improving the livelihoods of local producers. However, leaf diseases caused by devastating fungi are a real obstacle to the development of this crop. The aim of this study was to evaluate the antifungal potential of Cymbopogon citratus essential oil against Alternaria alternata and Phomopsis carica-papayae, fungal agents associated with the deterioration of papaya leaves in the Moungo region of Cameroon. The essential oil of fresh C. citratus leaves was extracted by hydrodistillation. Analysis of the chemical composition by GC then GC/MS revealed Geranial (45.24%), Neral (35.57%) and Myrcene (7.21%) as the majority compounds. In vitro antifungal tests on mycelial growth by incorporation into agar gave MICs of 900 ppm and 700 ppm against A. alternata and P. carica-papayae respectively. The MIC of 700 ppm proved fungicidal on P. carica papayae, while for A. alternata the fungicidal effect was obtained at a concentration of 900 ppm. In situ, the essential oil proved significantly active in inhibiting necrosis caused by the conidial complex of the two pathogens on papaya leaves, with a percentage inhibition of 85.93% at a concentration of 6000 ppm. C. citratus EO could therefore be used as an alternative to chemical fungicides in the fight against papaya leaf disease pathogens.

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Section: Evaluation Of Antifungal Activity On Mycelial Growthmentioning

confidence: 99%

In vitro and in situ Activity of Cymbopogon citratus Essential Oil Against Alternaria alternata and Phomopsis carica-papayae, Causal Agents of Papaya Leaf Diseases

Victor,

Priscille,

Steve

et al. 2024

JPS

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“…Finally, innovative formulations regularly tested in vitro, significantly enhanced the inhibition over time compared with the oil tested alone [103,104,107,108].…”

Section: Insights Of Essential Oils Activity On P Infestansmentioning

confidence: 99%

Harnessing Plant’s Arsenal: Essential Oils as Promising Tools for Sustainable Management of Potato Late Blight Disease Caused by Phytophthora infestans—A Comprehensive Review

Martini,

Jijakli,

Gontier

et al. 2023

Molecules

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Potato late blight disease is caused by the oomycete Phytophthora infestans and is listed as one of the most severe phytopathologies on Earth. The current environmental issues require new methods of pest management. For that reason, plant secondary metabolites and, in particular, essential oils (EOs) have demonstrated promising potential as pesticide alternatives. This review presents the up-to-date work accomplished using EOs against P. infestans at various experimental scales, from in vitro to in vivo. Additionally, some cellular mechanisms of action on Phytophthora spp, especially towards cell membranes, are also presented for a better understanding of anti-oomycete activities. Finally, some challenges and constraints encountered for the development of EOs-based biopesticides are highlighted.

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Thyme-licorice nanoemulsion for anthracnose management in Capsicum annuum L. and life cycle assessment of its production

Arora,

Naaz,

Sharma

et al. 2024

Biocatalysis and Agricultural Biotechnology

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Effectiveness of Massep (Ocimum gratissimum L.) essential oil and its nanoemulsion toward Sclerotium rolfsii, Phytophthora infestans and Alternaria solani, pathogens associated with tomato rot diseases

Cited by 3 publications

References 37 publications

<i>In vitro</i> and <i>in situ</i> Activity of <i>Cymbopogon citratus</i> Essential Oil Against <i>Alternaria alternata</i> and <i>Phomopsis carica-papayae</i>, Causal Agents of Papaya Leaf Diseases

<i>In vitro</i> and <i>in situ</i> Activity of <i>Cymbopogon citratus</i> Essential Oil Against <i>Alternaria alternata</i> and <i>Phomopsis carica-papayae</i>, Causal Agents of Papaya Leaf Diseases

Harnessing Plant’s Arsenal: Essential Oils as Promising Tools for Sustainable Management of Potato Late Blight Disease Caused by Phytophthora infestans—A Comprehensive Review

Thyme-licorice nanoemulsion for anthracnose management in Capsicum annuum L. and life cycle assessment of its production

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Effectiveness of Massep (Ocimum gratissimum L.) essential oil and its nanoemulsion toward Sclerotium rolfsii, Phytophthora infestans and Alternaria solani, pathogens associated with tomato rot diseases

Cited by 3 publications

References 37 publications

&lt;i&gt;In vitro&lt;/i&gt; and &lt;i&gt;in situ&lt;/i&gt; Activity of &lt;i&gt;Cymbopogon citratus&lt;/i&gt; Essential Oil Against &lt;i&gt;Alternaria alternata&lt;/i&gt; and &lt;i&gt;Phomopsis carica-papayae&lt;/i&gt;, Causal Agents of Papaya Leaf Diseases

&lt;i&gt;In vitro&lt;/i&gt; and &lt;i&gt;in situ&lt;/i&gt; Activity of &lt;i&gt;Cymbopogon citratus&lt;/i&gt; Essential Oil Against &lt;i&gt;Alternaria alternata&lt;/i&gt; and &lt;i&gt;Phomopsis carica-papayae&lt;/i&gt;, Causal Agents of Papaya Leaf Diseases

Harnessing Plant’s Arsenal: Essential Oils as Promising Tools for Sustainable Management of Potato Late Blight Disease Caused by Phytophthora infestans—A Comprehensive Review

Thyme-licorice nanoemulsion for anthracnose management in Capsicum annuum L. and life cycle assessment of its production

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<i>In vitro</i> and <i>in situ</i> Activity of <i>Cymbopogon citratus</i> Essential Oil Against <i>Alternaria alternata</i> and <i>Phomopsis carica-papayae</i>, Causal Agents of Papaya Leaf Diseases

<i>In vitro</i> and <i>in situ</i> Activity of <i>Cymbopogon citratus</i> Essential Oil Against <i>Alternaria alternata</i> and <i>Phomopsis carica-papayae</i>, Causal Agents of Papaya Leaf Diseases