Indigo as a Plant Growth Inhibitory Chemical from the Fruit Pulp of <i>Couroupita guianensis </i>Aubl.
Weed management is an important issue since weeds directly compete with crop plants for space, nutrients; serve as habitat for insect pests and diseases, and can create a significant annual reduction in crop productivity. This study focused on evaluating the contribution of the secondary metabolites...
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| Format: | Article |
| Language: | English |
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MDPI AG
2020-09-01
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| Series: | Agronomy |
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| Online Access: | https://www.mdpi.com/2073-4395/10/9/1388 |
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| author | Kohinoor Begum Takashi Motobayashi Nazmul Hasan Kwame Sarpong Appiah Mashura Shammi Yoshiharu Fujii |
| author_facet | Kohinoor Begum Takashi Motobayashi Nazmul Hasan Kwame Sarpong Appiah Mashura Shammi Yoshiharu Fujii |
| author_sort | Kohinoor Begum |
| collection | DOAJ |
| description | Weed management is an important issue since weeds directly compete with crop plants for space, nutrients; serve as habitat for insect pests and diseases, and can create a significant annual reduction in crop productivity. This study focused on evaluating the contribution of the secondary metabolites of the fruit pulp of <i>Couroupita guianensis</i> Aubl. for its potential growth inhibitory effect. Crude extracts of <i>C. guianensis </i>fruit pulp were collected with different solvents and applied to test plants in petri dishes. The crude extracts of methanol and 1% dimethyl sulfoxide (DMSO) showed potential growth inhibitions with the 50% effective concentration (EC<sub>50</sub>) of 223 and 229 µg/mL in the bioassay experiment. In the greenhouse pot experiment, soil incorporated with oven-dried fruit pulp of <i>C. guianensis</i> was evaluated on cultivated plant species including <i>Lactuca sativa</i> L., Trifolium repens L., Medicago sativa L., Lolium multiflorum Lam., and Phleum pratense L. The incorporation of dried fruit pulp of <i>C. guianensis </i>into soil reduced shoot and root lengths and the germination percentage of test plants. It was observed that the monocot plants were more affected than the dicot plants. The fruit pulp of <i>C. guianensis</i> was subjected to reversed-phase high-performance liquid chromatography (HPLC) analysis to identify the active compounds<i>.</i> Indigo, identified as one of the candidate compounds of the <i>C. guianensis,</i> had high specific activity (i.e., strong inhibitory activity) in a phytotoxicity bioassay and could explain through the total activity concept the growth inhibitory effect of the <i>C. guianensis</i> on test plants. The results suggested that indigo has plant growth inhibitory effect, indicating the allelopathic potential of <i>C. guianensis,</i> which could be exploited in sustainable weed management. |
| first_indexed | 2024-03-10T16:20:31Z |
| format | Article |
| id | doaj.art-502bd39ec17f4e3381ddd8e8ea63f4d6 |
| institution | Directory Open Access Journal |
| issn | 2073-4395 |
| language | English |
| last_indexed | 2024-03-10T16:20:31Z |
| publishDate | 2020-09-01 |
| publisher | MDPI AG |
| record_format | Article |
| series | Agronomy |
| spelling | doaj.art-502bd39ec17f4e3381ddd8e8ea63f4d62023-11-20T13:41:19ZengMDPI AGAgronomy2073-43952020-09-01109138810.3390/agronomy10091388Indigo as a Plant Growth Inhibitory Chemical from the Fruit Pulp of <i>Couroupita guianensis </i>Aubl.Kohinoor Begum0Takashi Motobayashi1Nazmul Hasan2Kwame Sarpong Appiah3Mashura Shammi4Yoshiharu Fujii5United Graduate School of AgricultureUnited Graduate School of AgricultureFruit Science Laboratory, Department of Science of Bioresource Production, Saga University (Allied), Saga 840-8502, JapanUnited Graduate School of AgricultureDepartment of Environmental Science, Jahangirnagar University, Savar, Dhaka 1342, BangladeshUnited Graduate School of AgricultureWeed management is an important issue since weeds directly compete with crop plants for space, nutrients; serve as habitat for insect pests and diseases, and can create a significant annual reduction in crop productivity. This study focused on evaluating the contribution of the secondary metabolites of the fruit pulp of <i>Couroupita guianensis</i> Aubl. for its potential growth inhibitory effect. Crude extracts of <i>C. guianensis </i>fruit pulp were collected with different solvents and applied to test plants in petri dishes. The crude extracts of methanol and 1% dimethyl sulfoxide (DMSO) showed potential growth inhibitions with the 50% effective concentration (EC<sub>50</sub>) of 223 and 229 µg/mL in the bioassay experiment. In the greenhouse pot experiment, soil incorporated with oven-dried fruit pulp of <i>C. guianensis</i> was evaluated on cultivated plant species including <i>Lactuca sativa</i> L., Trifolium repens L., Medicago sativa L., Lolium multiflorum Lam., and Phleum pratense L. The incorporation of dried fruit pulp of <i>C. guianensis </i>into soil reduced shoot and root lengths and the germination percentage of test plants. It was observed that the monocot plants were more affected than the dicot plants. The fruit pulp of <i>C. guianensis</i> was subjected to reversed-phase high-performance liquid chromatography (HPLC) analysis to identify the active compounds<i>.</i> Indigo, identified as one of the candidate compounds of the <i>C. guianensis,</i> had high specific activity (i.e., strong inhibitory activity) in a phytotoxicity bioassay and could explain through the total activity concept the growth inhibitory effect of the <i>C. guianensis</i> on test plants. The results suggested that indigo has plant growth inhibitory effect, indicating the allelopathic potential of <i>C. guianensis,</i> which could be exploited in sustainable weed management.https://www.mdpi.com/2073-4395/10/9/1388<i>C. guianensis</i>indigoallelopathygrowth controlweed managementagro-ecology |
| spellingShingle | Kohinoor Begum Takashi Motobayashi Nazmul Hasan Kwame Sarpong Appiah Mashura Shammi Yoshiharu Fujii Indigo as a Plant Growth Inhibitory Chemical from the Fruit Pulp of <i>Couroupita guianensis </i>Aubl. Agronomy <i>C. guianensis</i> indigo allelopathy growth control weed management agro-ecology |
| title | Indigo as a Plant Growth Inhibitory Chemical from the Fruit Pulp of <i>Couroupita guianensis </i>Aubl. |
| title_full | Indigo as a Plant Growth Inhibitory Chemical from the Fruit Pulp of <i>Couroupita guianensis </i>Aubl. |
| title_fullStr | Indigo as a Plant Growth Inhibitory Chemical from the Fruit Pulp of <i>Couroupita guianensis </i>Aubl. |
| title_full_unstemmed | Indigo as a Plant Growth Inhibitory Chemical from the Fruit Pulp of <i>Couroupita guianensis </i>Aubl. |
| title_short | Indigo as a Plant Growth Inhibitory Chemical from the Fruit Pulp of <i>Couroupita guianensis </i>Aubl. |
| title_sort | indigo as a plant growth inhibitory chemical from the fruit pulp of i couroupita guianensis i aubl |
| topic | <i>C. guianensis</i> indigo allelopathy growth control weed management agro-ecology |
| url | https://www.mdpi.com/2073-4395/10/9/1388 |
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