Colonization of Bacillus spp. on seeds and in plant rhizoplane.

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dc.contributor.authorUgoji, E Oen_US
dc.contributor.authorLaing, M Den_US
dc.contributor.authorHunter, C Hen_US
dc.date.accessioned2005-07-13en_US
dc.date.accessioned2009-06-02T03:47:58Z
dc.date.available2005-07-13en_US
dc.date.available2009-06-02T03:47:58Z
dc.date.issued2005-07-13en_US
dc.description.abstractSeed coating, dipping and Scanning Electron Microscopy (SEM) were employed to study bacterial and fungal colonization of the seeds and rhizoplane of maize (Zea mays L.) during the early stages of growth. Isolation of Bacillus spp. entailed screening soil bacteria with potential growth stimulation and plant pathogen suppressive abilities isolated from the rhizospheres and rhizoplanes of vegetable crops. The bacterial colonization of the spermosphere was 90%. When the coated seeds were fully germinated, bacteria moved to the emerging radicle. Virtually no bacteria occurred on the root tip both for the treated and untreated. However, colonization was 20% in the basal portion of the roots close to the seed-root junction. SEM observations showed that the bacterial cells were arranged linearly and laterally on the growing root axis. This phenomenon was more noticeable in the seedlings dipped in the bacterial culture on the 3rd day after germination. The results indicate that attachment to the seed coat and the rhizoplane by the plant growth-promoting rhizobacterium (PGPR) is an important factor in the successful colonization of the rhizoplane. The significance of the work is to ascertain that the inoculated Bacillus spp. adhered to and established in the rhizoplane of maize. It can therefore be used as a PGPR and as a biocontrol agent.en_US
dc.description.affiliationDepartment of Botany and Microbiology, University of Lagos, Akoka, Nigeria. ugojie@mail.comen_US
dc.identifier.citationUgoji EO, Laing MD, Hunter CH. Colonization of Bacillus spp. on seeds and in plant rhizoplane. Journal of Environmental Biology. 2005 Jul; 26(3): 459-66en_US
dc.identifier.urihttps://imsear.searo.who.int/handle/123456789/113320
dc.language.isoengen_US
dc.source.urihttps://www.geocities.com/j_environ_biol/en_US
dc.subject.meshBacillus --growth & developmenten_US
dc.subject.meshMicroscopy, Electron, Scanningen_US
dc.subject.meshPlant Roots --microbiologyen_US
dc.subject.meshSeeds --microbiologyen_US
dc.subject.meshSoil Microbiologyen_US
dc.subject.meshZea maysen_US
dc.titleColonization of Bacillus spp. on seeds and in plant rhizoplane.en_US
dc.typeComparative Studyen_US
dc.typeJournal Articleen_US
dc.typeResearch Support, Non-U.S. Gov'ten_US
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