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Brazilian Journal of Microbiology

Print version ISSN 1517-8382On-line version ISSN 1678-4405


MELO, Itamar Soares de  and  FAULL, Jane L.. Scanning electron microscopy of conidia of Trichoderma stromaticum, a biocontrol agent of witches' broom disease of cocoa. Braz. J. Microbiol. [online]. 2004, vol.35, n.4, pp.330-332. ISSN 1517-8382.

A field emission electron microscope (SEM) was used to study the conidia surface of Trichoderma stromaticum, a biocontrol of witches broom disease of cocoa. Surface features of conidia were difficult distinguish by light microscope. Conidia appeared to be verrugose and minutely roughened, but the nature of the roughening was not easy to discern. It was common to observe sheath-like structures that completely covered groups of conidia, and also details of wide cells that form the pustules.

Keywords : Biological control; cocoa; Crinipellis pernisiosa; morphology of conidia.

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