Nuclear dynamics during germination, conidiation, and hyphal fusion of Fusarium oxysporum

Ruiz-Roldan, M. C. and Kohli, M. and Roncero, M. I. G. and Philippsen, P. and Di Pietro, A. and Espeso, E. A.. (2010) Nuclear dynamics during germination, conidiation, and hyphal fusion of Fusarium oxysporum. Eukaryotic Cell, Vol. 9, H. 8. pp. 1216-1224.

Full text not available from this repository.

Official URL: http://edoc.unibas.ch/dok/A5842490

Downloads: Statistics Overview


In many fungal pathogens, infection is initiated by conidial germination. Subsequent stages involve germ tube elongation, conidiation, and vegetative hyphal fusion (anastomosis). Here, we used live-cell fluorescence to study the dynamics of green fluorescent protein (GFP)- and cherry fluorescent protein (ChFP)-labeled nuclei in the plant pathogen Fusarium oxysporum. Hyphae of F. oxysporum have uninucleated cells and exhibit an acropetal nuclear pedigree, where only the nucleus in the apical compartment is mitotically active. In contrast, conidiation follows a basopetal pattern, whereby mononucleated microconidia are generated by repeated mitotic cycles of the subapical nucleus in the phialide, followed by septation and cell abscission. Vegetative hyphal fusion is preceded by directed growth of the fusion hypha toward the receptor hypha and followed by a series of postfusion nuclear events, including mitosis of the apical nucleus of the fusion hypha, migration of a daughter nucleus into the receptor hypha, and degradation of the resident nucleus. These previously unreported patterns of nuclear dynamics in F. oxysporum could be intimately related to its pathogenic lifestyle.
Faculties and Departments:05 Faculty of Science > Departement Biozentrum > Former Organization Units Biozentrum > Applied Microbiology (Philippsen)
UniBasel Contributors:Philippsen, Peter
Item Type:Article, refereed
Article Subtype:Research Article
Publisher:American Society for Microbiology
Note:Publication type according to Uni Basel Research Database: Journal article
Related URLs:
Identification Number:
Last Modified:14 Sep 2012 07:17
Deposited On:14 Sep 2012 06:37

Repository Staff Only: item control page