Brazilian Journal of Microbiology
On-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 1678-4405. http://dx.doi.org/10.1590/S1517-83822004000300011.
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.