The Biosurfactants Mannosylerythritol Lipids (MELs) as Stimulant on the Germination of <i>Lactuca sativa</i> L.
The application of pesticides in agriculture leads to improved crop quality and promotes high productivity. However, the uninterrupted use of these chemicals is directly related to environmental impacts, affecting biodiversity and the health of ecosystems and humans. In this sense, mannosylerythrito...
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MDPI AG
2023-08-01
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| Series: | Agriculture |
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| Online Access: | https://www.mdpi.com/2077-0472/13/9/1646 |
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| author | Renato Dias Matosinhos Karina Cesca Bruno Augusto Mattar Carciofi Débora de Oliveira Cristiano José de Andrade |
| author_facet | Renato Dias Matosinhos Karina Cesca Bruno Augusto Mattar Carciofi Débora de Oliveira Cristiano José de Andrade |
| author_sort | Renato Dias Matosinhos |
| collection | DOAJ |
| description | The application of pesticides in agriculture leads to improved crop quality and promotes high productivity. However, the uninterrupted use of these chemicals is directly related to environmental impacts, affecting biodiversity and the health of ecosystems and humans. In this sense, mannosylerythritol lipids (MELs) are a promising alternative, as they are biosurfactants with antimicrobial, amphiphilic characteristics, and low toxicity. Thus, in search of a partial reduction in the use of chemical pesticides in agriculture, this work aimed to evaluate the biostimulant effect of one of the homologs of MELs–MEL-B on the germination of Monica lettuce seeds (<i>Lactuca sativa</i> L.) and the influence on plant growth and root development. The seeds germinated in different concentrations of MEL-B. The incidence of germinated seeds, the germination index, and the average germination time were evaluated. MEL-B at 158 mg/L stimulated seed germination, growth, and seedling development parameters by 65%, while concentrations of 316 and 632 mg/L did not exceed 45% for these parameters. It was observed that MEL-B at 158 mg/L biostimulated the appearance of lateral roots and promoted only 7% of root stress, a difference of 47% for roots grown with MEL-B at 632 mg/L. Furthermore, MEL-B at 158 mg/L was the highest concentration at which there was no phytotoxic effect of MEL-B on seeds. The increase in enzymatic activity corroborates the phytotoxic effect and seed stress at concentrations of 316 and 632 mg/L, showing results of 47% and 54% of stressed roots. In an unprecedented way, this study proved that MEL-B has a biostimulant and phytotoxic effect related to its concentration. |
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| language | English |
| last_indexed | 2024-03-10T23:09:51Z |
| publishDate | 2023-08-01 |
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| series | Agriculture |
| spelling | doaj.art-cb769773f8a94546a19a723a0c0ae0642023-11-19T09:05:23ZengMDPI AGAgriculture2077-04722023-08-01139164610.3390/agriculture13091646The Biosurfactants Mannosylerythritol Lipids (MELs) as Stimulant on the Germination of <i>Lactuca sativa</i> L.Renato Dias Matosinhos0Karina Cesca1Bruno Augusto Mattar Carciofi2Débora de Oliveira3Cristiano José de Andrade4Graduate Chemical Engineering Program (PósENQ), University of Santa Catarina (UFSC), Florianópolis 88040-900, SC, BrazilGraduate Food Engineering Program (PPGEAL), University of Santa Catarina (UFSC), Florianópolis 88040-900, SC, BrazilGraduate Food Engineering Program (PPGEAL), University of Santa Catarina (UFSC), Florianópolis 88040-900, SC, BrazilGraduate Chemical Engineering Program (PósENQ), University of Santa Catarina (UFSC), Florianópolis 88040-900, SC, BrazilGraduate Chemical Engineering Program (PósENQ), University of Santa Catarina (UFSC), Florianópolis 88040-900, SC, BrazilThe application of pesticides in agriculture leads to improved crop quality and promotes high productivity. However, the uninterrupted use of these chemicals is directly related to environmental impacts, affecting biodiversity and the health of ecosystems and humans. In this sense, mannosylerythritol lipids (MELs) are a promising alternative, as they are biosurfactants with antimicrobial, amphiphilic characteristics, and low toxicity. Thus, in search of a partial reduction in the use of chemical pesticides in agriculture, this work aimed to evaluate the biostimulant effect of one of the homologs of MELs–MEL-B on the germination of Monica lettuce seeds (<i>Lactuca sativa</i> L.) and the influence on plant growth and root development. The seeds germinated in different concentrations of MEL-B. The incidence of germinated seeds, the germination index, and the average germination time were evaluated. MEL-B at 158 mg/L stimulated seed germination, growth, and seedling development parameters by 65%, while concentrations of 316 and 632 mg/L did not exceed 45% for these parameters. It was observed that MEL-B at 158 mg/L biostimulated the appearance of lateral roots and promoted only 7% of root stress, a difference of 47% for roots grown with MEL-B at 632 mg/L. Furthermore, MEL-B at 158 mg/L was the highest concentration at which there was no phytotoxic effect of MEL-B on seeds. The increase in enzymatic activity corroborates the phytotoxic effect and seed stress at concentrations of 316 and 632 mg/L, showing results of 47% and 54% of stressed roots. In an unprecedented way, this study proved that MEL-B has a biostimulant and phytotoxic effect related to its concentration.https://www.mdpi.com/2077-0472/13/9/1646agricultureenzyme activitystressed rootsglycolipidlettuce |
| spellingShingle | Renato Dias Matosinhos Karina Cesca Bruno Augusto Mattar Carciofi Débora de Oliveira Cristiano José de Andrade The Biosurfactants Mannosylerythritol Lipids (MELs) as Stimulant on the Germination of <i>Lactuca sativa</i> L. Agriculture agriculture enzyme activity stressed roots glycolipid lettuce |
| title | The Biosurfactants Mannosylerythritol Lipids (MELs) as Stimulant on the Germination of <i>Lactuca sativa</i> L. |
| title_full | The Biosurfactants Mannosylerythritol Lipids (MELs) as Stimulant on the Germination of <i>Lactuca sativa</i> L. |
| title_fullStr | The Biosurfactants Mannosylerythritol Lipids (MELs) as Stimulant on the Germination of <i>Lactuca sativa</i> L. |
| title_full_unstemmed | The Biosurfactants Mannosylerythritol Lipids (MELs) as Stimulant on the Germination of <i>Lactuca sativa</i> L. |
| title_short | The Biosurfactants Mannosylerythritol Lipids (MELs) as Stimulant on the Germination of <i>Lactuca sativa</i> L. |
| title_sort | biosurfactants mannosylerythritol lipids mels as stimulant on the germination of i lactuca sativa i l |
| topic | agriculture enzyme activity stressed roots glycolipid lettuce |
| url | https://www.mdpi.com/2077-0472/13/9/1646 |
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