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Antagonism of Paecilomyces spp. isolated from banana (Musa spp.) roots and rhizosphere against Radopholus similis

dc.contributor.authorKilama, P.
dc.contributor.authorDubois, T.
dc.contributor.authorCoyne, D.L.
dc.contributor.authorNiere, B.
dc.contributor.authorGold, C.S.
dc.contributor.authorAdipala, E.
dc.date.accessioned2019-12-04T11:18:14Z
dc.date.available2019-12-04T11:18:14Z
dc.date.issued2007
dc.identifier.citationKilama, P., Dubois, T., Coyne, D., Niere, B., Gold, C.S. & Adipala, E. (2007). Antagonism of Paecilomyces spp. isolated from banana (Musa spp.) roots and rhizosphere against Radopholus similis. Nematropica, 37(2), 215-226.
dc.identifier.issn0099-5444
dc.identifier.urihttps://hdl.handle.net/20.500.12478/3125
dc.description.abstractBanana (Musaspp.) in East Africa is threatened by pests and diseases, of which the burrowingnematode, Radopholus similis, is among the most serious and difficult to control. Fungal antagonists, such as Paecilomyces spp., can aid in controlling R. similis. In this study, Paecilomyces spp. was isolatedfrom banana roots and rhizosphere in fields in Uganda with high and low densities of R. similis. Fungi were more abundant in the rhizosphere than on roots in the field with low R. similis density, whereas the reverse occurred in the field with high R. similisdensity. A total of 23 isolates of Paecilomyces spp. were collected, of which Paecilomyces lilacinuswas the most abundant species. This is the first reportshowing the high presence of Paecilomycesspp. in the rhizosphere of bananas. Bioassays revealed thatfiltrates of P. lilacinusand Paecilomyces marquandii caused reversible paralysis of male and juvenileR. similis. Paecilomyces lilacinus isolate 23N5-2 caused greatest paralysis, which was not influenced by filtrate concentration.
dc.description.abstractEl cultivo de banano (Musaspp.) en Africa Oriental se ve afectado por plagas y enfermedades, en-tre las cuales el nematodo barrenador, Radopholus similis,es uno de los más serios y difíciles de con-trolar. Los hongos antagonistas, como Paecilomycesspp., pueden ayudar a controlar R. similis. En esteestudio, se aisló Paecilomycesspp. de raíces y rizosfera de banano con densidades altas y bajas de R.similisen Uganda. Se encontraron los hongos en mayor abundancia en la rizosfera que en las raícesen los campos con bajas densidades de R. similis, mientras que lo contrario ocurrió en los campos conaltas densidades de R. similis. Se colectó un total de 23 aislamientos de Paecilomycesspp., siendo Paeci-lomyces lilacinusla especie más abundante. Este es el primer registro que indica la alta presencia dePaecilomycesspp. en la rizosfera de bananos. Los bioensayos demostraron que los filtrados de P. lilaci-nusy Paecilomyces marquandiicausan parálisis reversible de machos y juveniles de R. similis. La cepa23N5-2 de P. lilacinuscausó la mayor parálisis, independientemente de la concentración del filtrado.
dc.description.sponsorshipFederal Ministry for Economic Cooperation and Development, Germany
dc.language.isoen
dc.language.isofr
dc.subjectBioassay
dc.subjectBurrowing Nematode
dc.subjectEast African Highland Banana
dc.subjectMusa
dc.subjectPaecilomyces Lilacinus
dc.subjectPaecilomyces Marquandii
dc.subjectRadopholus Similis
dc.subjectBanano De Africa Oriental
dc.subjectBioensayo
dc.subjectMusa
dc.subjectNematodo Barrenador
dc.subjectPaecilomyces Lilacinus
dc.subjectPaecilomyces Marquandii
dc.subjectRadopholus Similis
dc.titleAntagonism of Paecilomyces spp. isolated from banana (Musa spp.) roots and rhizosphere against Radopholus similis
dc.typeJournal Article
dc.description.versionPeer Review
cg.contributor.affiliationInternational Institute of Tropical Agriculture
cg.contributor.affiliationFederal Biological Research Centre for Agriculture and Forestry, Germany
cg.contributor.affiliationMakerere University
cg.coverage.regionAfrica
cg.coverage.regionEast Africa
cg.coverage.countryUganda
cg.isijournalISI Journal
cg.authorship.typesCGIAR and developing country institute
cg.iitasubjectBanana
cg.iitasubjectPlant Diseases
cg.iitasubjectTissue Culture
cg.accessibilitystatusLimited Access
local.dspaceid94591


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