αβ-Dehydrocurvularin isolated from the fungus Aspergillus welwitschiae effectively inhibited the behaviour and development of the root-knot nematode Meloidogyne graminicola in rice roots
Abstract Background The root-knot nematode Meloidogyne graminicola has become a serious threat to rice production as a result of the cultivation changes from transplanting to direct seeding. The nematicidal activity of Aspergillus welwitschiae have been investigated in vitro, and the disease control...
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| Format: | Article |
| Language: | English |
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BMC
2020-03-01
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| Series: | BMC Microbiology |
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| Online Access: | http://link.springer.com/article/10.1186/s12866-020-01738-2 |
| _version_ | 1818153539954802688 |
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| author | Chao Xiang Ying Liu Shi-Ming Liu Ya-Fei Huang Ling-An Kong Huan Peng Mao-Yan Liu Jing Liu De-Liang Peng Wen-Kun Huang |
| author_facet | Chao Xiang Ying Liu Shi-Ming Liu Ya-Fei Huang Ling-An Kong Huan Peng Mao-Yan Liu Jing Liu De-Liang Peng Wen-Kun Huang |
| author_sort | Chao Xiang |
| collection | DOAJ |
| description | Abstract Background The root-knot nematode Meloidogyne graminicola has become a serious threat to rice production as a result of the cultivation changes from transplanting to direct seeding. The nematicidal activity of Aspergillus welwitschiae have been investigated in vitro, and the disease control efficacy of the active compound has been evaluated under greenhouse and field conditions. Results The active compound αβ-dehydrocurvularin (αβ-DC), isolated by nematicidal assay-directed fractionation, showed significant nematicidal activity against M. graminicola, with a median lethal concentration (LC50) value of 122.2 μg mL− 1. αβ-DC effectively decreased the attraction of rice roots to nematodes and the infection of nematodes and also suppressed the development of nematodes under greenhouse conditions. Moreover, αβ-DC efficiently reduced the root gall index under field conditions. Conclusions To our knowledge, this is the first report to describe the nematicidal activity of αβ-DC against M. graminicola. The results obtained under greenhouse and field conditions provide a basis for developing commercial formulations from αβ-DC to control M. graminicola in the future. |
| first_indexed | 2024-12-11T14:12:14Z |
| format | Article |
| id | doaj.art-a0fd33f022dd4099b52d1bd71320279a |
| institution | Directory Open Access Journal |
| issn | 1471-2180 |
| language | English |
| last_indexed | 2024-12-11T14:12:14Z |
| publishDate | 2020-03-01 |
| publisher | BMC |
| record_format | Article |
| series | BMC Microbiology |
| spelling | doaj.art-a0fd33f022dd4099b52d1bd71320279a2022-12-22T01:03:23ZengBMCBMC Microbiology1471-21802020-03-0120111010.1186/s12866-020-01738-2αβ-Dehydrocurvularin isolated from the fungus Aspergillus welwitschiae effectively inhibited the behaviour and development of the root-knot nematode Meloidogyne graminicola in rice rootsChao Xiang0Ying Liu1Shi-Ming Liu2Ya-Fei Huang3Ling-An Kong4Huan Peng5Mao-Yan Liu6Jing Liu7De-Liang Peng8Wen-Kun Huang9State Key Laboratory for Biology of Plant Diseases and Insect Pests, Institute of Plant Protection, Chinese Academy of Agricultural SciencesState Key Laboratory for Biology of Plant Diseases and Insect Pests, Institute of Plant Protection, Chinese Academy of Agricultural SciencesState Key Laboratory for Biology of Plant Diseases and Insect Pests, Institute of Plant Protection, Chinese Academy of Agricultural SciencesCollege of Chemical Engineering, Beijing University of Chemical TechnologyState Key Laboratory for Biology of Plant Diseases and Insect Pests, Institute of Plant Protection, Chinese Academy of Agricultural SciencesState Key Laboratory for Biology of Plant Diseases and Insect Pests, Institute of Plant Protection, Chinese Academy of Agricultural SciencesState Key Laboratory for Biology of Plant Diseases and Insect Pests, Institute of Plant Protection, Chinese Academy of Agricultural SciencesCollege of Plant Protection, Hunan Agricultural UniversityState Key Laboratory for Biology of Plant Diseases and Insect Pests, Institute of Plant Protection, Chinese Academy of Agricultural SciencesState Key Laboratory for Biology of Plant Diseases and Insect Pests, Institute of Plant Protection, Chinese Academy of Agricultural SciencesAbstract Background The root-knot nematode Meloidogyne graminicola has become a serious threat to rice production as a result of the cultivation changes from transplanting to direct seeding. The nematicidal activity of Aspergillus welwitschiae have been investigated in vitro, and the disease control efficacy of the active compound has been evaluated under greenhouse and field conditions. Results The active compound αβ-dehydrocurvularin (αβ-DC), isolated by nematicidal assay-directed fractionation, showed significant nematicidal activity against M. graminicola, with a median lethal concentration (LC50) value of 122.2 μg mL− 1. αβ-DC effectively decreased the attraction of rice roots to nematodes and the infection of nematodes and also suppressed the development of nematodes under greenhouse conditions. Moreover, αβ-DC efficiently reduced the root gall index under field conditions. Conclusions To our knowledge, this is the first report to describe the nematicidal activity of αβ-DC against M. graminicola. The results obtained under greenhouse and field conditions provide a basis for developing commercial formulations from αβ-DC to control M. graminicola in the future.http://link.springer.com/article/10.1186/s12866-020-01738-2Meloidogyne graminicolaαβ-dehydrocurvularinNematicidal activityAttractivenessDevelopmentBehaviour |
| spellingShingle | Chao Xiang Ying Liu Shi-Ming Liu Ya-Fei Huang Ling-An Kong Huan Peng Mao-Yan Liu Jing Liu De-Liang Peng Wen-Kun Huang αβ-Dehydrocurvularin isolated from the fungus Aspergillus welwitschiae effectively inhibited the behaviour and development of the root-knot nematode Meloidogyne graminicola in rice roots BMC Microbiology Meloidogyne graminicola αβ-dehydrocurvularin Nematicidal activity Attractiveness Development Behaviour |
| title | αβ-Dehydrocurvularin isolated from the fungus Aspergillus welwitschiae effectively inhibited the behaviour and development of the root-knot nematode Meloidogyne graminicola in rice roots |
| title_full | αβ-Dehydrocurvularin isolated from the fungus Aspergillus welwitschiae effectively inhibited the behaviour and development of the root-knot nematode Meloidogyne graminicola in rice roots |
| title_fullStr | αβ-Dehydrocurvularin isolated from the fungus Aspergillus welwitschiae effectively inhibited the behaviour and development of the root-knot nematode Meloidogyne graminicola in rice roots |
| title_full_unstemmed | αβ-Dehydrocurvularin isolated from the fungus Aspergillus welwitschiae effectively inhibited the behaviour and development of the root-knot nematode Meloidogyne graminicola in rice roots |
| title_short | αβ-Dehydrocurvularin isolated from the fungus Aspergillus welwitschiae effectively inhibited the behaviour and development of the root-knot nematode Meloidogyne graminicola in rice roots |
| title_sort | αβ dehydrocurvularin isolated from the fungus aspergillus welwitschiae effectively inhibited the behaviour and development of the root knot nematode meloidogyne graminicola in rice roots |
| topic | Meloidogyne graminicola αβ-dehydrocurvularin Nematicidal activity Attractiveness Development Behaviour |
| url | http://link.springer.com/article/10.1186/s12866-020-01738-2 |
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