INFECTION PROCESS OF Fusarium oxysporum FUNGUS: A CAUSE OF DAMPING-OFF ON Acacia mangium’s SEEDLINGS
Fusarium oxysporum is the causal agent of damping-off disease. The fungus attacks seedlings of many plant species, including Acacia mangium. In order to effectively control the disease, detailed information on how the fungus infects seedlings of A. mangium and how the plant responds to the fungal in...
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Universitas Brawijaya
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doaj-3ba813ad599941b9b43a4131d91c59d32020-11-24T22:16:44ZengUniversitas BrawijayaAGRIVITA Journal of Agricultural Science0126-05370126-05372013-06-01352110118INFECTION PROCESS OF Fusarium oxysporum FUNGUS: A CAUSE OF DAMPING-OFF ON Acacia mangium’s SEEDLINGSSiti Muslimah Widyastuti0Susanti Tasik1Harjono2Faculty of Forestry, Gadjah Mada UniversityFaculty of Forestry, The State University of PapuaFaculty of Forestry, Gadjah Mada UniversityFusarium oxysporum is the causal agent of damping-off disease. The fungus attacks seedlings of many plant species, including Acacia mangium. In order to effectively control the disease, detailed information on how the fungus infects seedlings of A. mangium and how the plant responds to the fungal infection is essentially needed. The objectives of this research were to investigate: (1) the infection process of F. oxysporumon seedlings of A. mangium, (2) the defence response of A. mangium seedling to infection by F. oxysporum. The fungal pathogen was identified, followed by performance of pathogenicity test. The infection process was followed by macroscopic observation as well as microscopic observation. The result indicated that fungal spore germination was observed at two-day post inoculation in planta. At four-daypost inoculation, hyphae of F. oxysporum had penetrated the collar root of A. mangium seedling via stomata aperture. In addition, fungal hyphae had grown intercellulary in to the vascular tissue. Correspondingly, hypersensitive response was also detected at the stomata aperture. However, this defence mechanism is not effective in stopping the fungus since F. oxysporum is a necrotropic pathogen. Moreover, accumulation of lignin, but not callose, was observed. http://agrivita.ub.ac.id/index.php/agrivita/article/view/275Fusarium oxysporumdamping-offAcacia mangium |
collection |
DOAJ |
language |
English |
format |
Article |
sources |
DOAJ |
author |
Siti Muslimah Widyastuti Susanti Tasik Harjono |
spellingShingle |
Siti Muslimah Widyastuti Susanti Tasik Harjono INFECTION PROCESS OF Fusarium oxysporum FUNGUS: A CAUSE OF DAMPING-OFF ON Acacia mangium’s SEEDLINGS AGRIVITA Journal of Agricultural Science Fusarium oxysporum damping-off Acacia mangium |
author_facet |
Siti Muslimah Widyastuti Susanti Tasik Harjono |
author_sort |
Siti Muslimah Widyastuti |
title |
INFECTION PROCESS OF Fusarium oxysporum FUNGUS: A CAUSE OF DAMPING-OFF ON Acacia mangium’s SEEDLINGS |
title_short |
INFECTION PROCESS OF Fusarium oxysporum FUNGUS: A CAUSE OF DAMPING-OFF ON Acacia mangium’s SEEDLINGS |
title_full |
INFECTION PROCESS OF Fusarium oxysporum FUNGUS: A CAUSE OF DAMPING-OFF ON Acacia mangium’s SEEDLINGS |
title_fullStr |
INFECTION PROCESS OF Fusarium oxysporum FUNGUS: A CAUSE OF DAMPING-OFF ON Acacia mangium’s SEEDLINGS |
title_full_unstemmed |
INFECTION PROCESS OF Fusarium oxysporum FUNGUS: A CAUSE OF DAMPING-OFF ON Acacia mangium’s SEEDLINGS |
title_sort |
infection process of fusarium oxysporum fungus: a cause of damping-off on acacia mangium’s seedlings |
publisher |
Universitas Brawijaya |
series |
AGRIVITA Journal of Agricultural Science |
issn |
0126-0537 0126-0537 |
publishDate |
2013-06-01 |
description |
Fusarium oxysporum is the causal agent of damping-off disease. The fungus attacks seedlings of many plant species, including Acacia mangium. In order to effectively control the disease, detailed information on how the fungus infects seedlings of A. mangium and how the plant responds to the fungal infection is essentially needed. The objectives of this research were to investigate: (1) the infection process of F. oxysporumon seedlings of A. mangium, (2) the defence response of A. mangium seedling to infection by F. oxysporum. The fungal pathogen was identified, followed by performance of pathogenicity test. The infection process was followed by macroscopic observation as well as microscopic observation. The result indicated that fungal spore germination was observed at two-day post inoculation in planta. At four-daypost inoculation, hyphae of F. oxysporum had penetrated the collar root of A. mangium seedling via stomata aperture. In addition, fungal hyphae had grown intercellulary in to the vascular tissue. Correspondingly, hypersensitive response was also detected at the stomata aperture. However, this defence mechanism is not effective in stopping the fungus since F. oxysporum is a necrotropic pathogen. Moreover, accumulation of lignin, but not callose, was observed. |
topic |
Fusarium oxysporum damping-off Acacia mangium |
url |
http://agrivita.ub.ac.id/index.php/agrivita/article/view/275 |
work_keys_str_mv |
AT sitimuslimahwidyastuti infectionprocessoffusariumoxysporumfungusacauseofdampingoffonacaciamangiumsseedlings AT susantitasik infectionprocessoffusariumoxysporumfungusacauseofdampingoffonacaciamangiumsseedlings AT harjono infectionprocessoffusariumoxysporumfungusacauseofdampingoffonacaciamangiumsseedlings |
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