Fresh cassava (Manihot esculenta) tubers unlike most other tubers of root crops are highly perishable. This study, therefore, investigated the antifungal activities of ethanol and hot water extract of Melanthera scandens (vine) and Mimosa pudica (touch me not) on rot fungi of cassava. Rotten cassava tuber samples were inoculated into Potato Dextrose Agar (PDA) for isolation of rot fungi causing postharvest deterioration of cassava tubers. The fungi obtained were identified using macroscopic and microscopic characteristics. The establishment of the pathogenicity of the fungal isolates was carried out by inoculating freshly harvested cassava tubers with the isolated fungi. The ethanol and hot water extract of the selected plants were tested against the isolated fungi both in vitro and in vivo. The isolates were identified as Aspergillus niger, Aspergillus flavus, Penicillium notatum, Penicillium sp, and Fusarium verticillioides. A. flavus being the most virulent with a percentage in severity of (27.15) on day 7 as compared with Aspergillus niger, Fusarium verticillioides, Penicillium sp, and Penicillium notatum which had (25.22, 17.17, 15.76 and 14.71) respectively. In the in vitro test the plants exhibited a high degree of fungicidal activity by inhibiting the mycelia growth of the rot fungi and Mimosa pudica was more effective in the suppression of fungal growth than Melanthera scandens. In the in vivo test there was a higher percentage reduction in diameter of rot when the plant extract was applied after twenty four hours of microbial inoculation directly to the cassava tuber. The extracts of Melanthera scandens and Mimosa pudica can therefore be used as a bio fungicide to extend the shelf-life of freshly harvested cassava tubers.
Published in | American Journal of Plant Biology (Volume 7, Issue 1) |
DOI | 10.11648/j.ajpb.20220701.21 |
Page(s) | 73-80 |
Creative Commons |
This is an Open Access article, distributed under the terms of the Creative Commons Attribution 4.0 International License (http://creativecommons.org/licenses/by/4.0/), which permits unrestricted use, distribution and reproduction in any medium or format, provided the original work is properly cited. |
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Copyright © The Author(s), 2022. Published by Science Publishing Group |
Cassava, Fungicidal, Rot - Fungi, Postharvest Deterioration
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APA Style
Oluwalana Olumayowa Adedunke, Odebode Adegboyega Christopher, Ayodele Adegboyega Sobowale, Adewuyi-Samuel Oluwatoke Bolatito. (2022). The Effect of Melanthera Scandens and Mimosa Pudica on Fungi Causing Postharvest Deterioration of Cassava Root Tubers. American Journal of Plant Biology, 7(1), 73-80. https://doi.org/10.11648/j.ajpb.20220701.21
ACS Style
Oluwalana Olumayowa Adedunke; Odebode Adegboyega Christopher; Ayodele Adegboyega Sobowale; Adewuyi-Samuel Oluwatoke Bolatito. The Effect of Melanthera Scandens and Mimosa Pudica on Fungi Causing Postharvest Deterioration of Cassava Root Tubers. Am. J. Plant Biol. 2022, 7(1), 73-80. doi: 10.11648/j.ajpb.20220701.21
AMA Style
Oluwalana Olumayowa Adedunke, Odebode Adegboyega Christopher, Ayodele Adegboyega Sobowale, Adewuyi-Samuel Oluwatoke Bolatito. The Effect of Melanthera Scandens and Mimosa Pudica on Fungi Causing Postharvest Deterioration of Cassava Root Tubers. Am J Plant Biol. 2022;7(1):73-80. doi: 10.11648/j.ajpb.20220701.21
@article{10.11648/j.ajpb.20220701.21, author = {Oluwalana Olumayowa Adedunke and Odebode Adegboyega Christopher and Ayodele Adegboyega Sobowale and Adewuyi-Samuel Oluwatoke Bolatito}, title = {The Effect of Melanthera Scandens and Mimosa Pudica on Fungi Causing Postharvest Deterioration of Cassava Root Tubers}, journal = {American Journal of Plant Biology}, volume = {7}, number = {1}, pages = {73-80}, doi = {10.11648/j.ajpb.20220701.21}, url = {https://doi.org/10.11648/j.ajpb.20220701.21}, eprint = {https://article.sciencepublishinggroup.com/pdf/10.11648.j.ajpb.20220701.21}, abstract = {Fresh cassava (Manihot esculenta) tubers unlike most other tubers of root crops are highly perishable. This study, therefore, investigated the antifungal activities of ethanol and hot water extract of Melanthera scandens (vine) and Mimosa pudica (touch me not) on rot fungi of cassava. Rotten cassava tuber samples were inoculated into Potato Dextrose Agar (PDA) for isolation of rot fungi causing postharvest deterioration of cassava tubers. The fungi obtained were identified using macroscopic and microscopic characteristics. The establishment of the pathogenicity of the fungal isolates was carried out by inoculating freshly harvested cassava tubers with the isolated fungi. The ethanol and hot water extract of the selected plants were tested against the isolated fungi both in vitro and in vivo. The isolates were identified as Aspergillus niger, Aspergillus flavus, Penicillium notatum, Penicillium sp, and Fusarium verticillioides. A. flavus being the most virulent with a percentage in severity of (27.15) on day 7 as compared with Aspergillus niger, Fusarium verticillioides, Penicillium sp, and Penicillium notatum which had (25.22, 17.17, 15.76 and 14.71) respectively. In the in vitro test the plants exhibited a high degree of fungicidal activity by inhibiting the mycelia growth of the rot fungi and Mimosa pudica was more effective in the suppression of fungal growth than Melanthera scandens. In the in vivo test there was a higher percentage reduction in diameter of rot when the plant extract was applied after twenty four hours of microbial inoculation directly to the cassava tuber. The extracts of Melanthera scandens and Mimosa pudica can therefore be used as a bio fungicide to extend the shelf-life of freshly harvested cassava tubers.}, year = {2022} }
TY - JOUR T1 - The Effect of Melanthera Scandens and Mimosa Pudica on Fungi Causing Postharvest Deterioration of Cassava Root Tubers AU - Oluwalana Olumayowa Adedunke AU - Odebode Adegboyega Christopher AU - Ayodele Adegboyega Sobowale AU - Adewuyi-Samuel Oluwatoke Bolatito Y1 - 2022/03/23 PY - 2022 N1 - https://doi.org/10.11648/j.ajpb.20220701.21 DO - 10.11648/j.ajpb.20220701.21 T2 - American Journal of Plant Biology JF - American Journal of Plant Biology JO - American Journal of Plant Biology SP - 73 EP - 80 PB - Science Publishing Group SN - 2578-8337 UR - https://doi.org/10.11648/j.ajpb.20220701.21 AB - Fresh cassava (Manihot esculenta) tubers unlike most other tubers of root crops are highly perishable. This study, therefore, investigated the antifungal activities of ethanol and hot water extract of Melanthera scandens (vine) and Mimosa pudica (touch me not) on rot fungi of cassava. Rotten cassava tuber samples were inoculated into Potato Dextrose Agar (PDA) for isolation of rot fungi causing postharvest deterioration of cassava tubers. The fungi obtained were identified using macroscopic and microscopic characteristics. The establishment of the pathogenicity of the fungal isolates was carried out by inoculating freshly harvested cassava tubers with the isolated fungi. The ethanol and hot water extract of the selected plants were tested against the isolated fungi both in vitro and in vivo. The isolates were identified as Aspergillus niger, Aspergillus flavus, Penicillium notatum, Penicillium sp, and Fusarium verticillioides. A. flavus being the most virulent with a percentage in severity of (27.15) on day 7 as compared with Aspergillus niger, Fusarium verticillioides, Penicillium sp, and Penicillium notatum which had (25.22, 17.17, 15.76 and 14.71) respectively. In the in vitro test the plants exhibited a high degree of fungicidal activity by inhibiting the mycelia growth of the rot fungi and Mimosa pudica was more effective in the suppression of fungal growth than Melanthera scandens. In the in vivo test there was a higher percentage reduction in diameter of rot when the plant extract was applied after twenty four hours of microbial inoculation directly to the cassava tuber. The extracts of Melanthera scandens and Mimosa pudica can therefore be used as a bio fungicide to extend the shelf-life of freshly harvested cassava tubers. VL - 7 IS - 1 ER -