Chemical composition of glomeruli produced by Colletotrichum gloeosporioides
DOI:
https://doi.org/10.33885/sf.2013.3.1116Keywords:
fatty acids, fatty glomeruliAbstract
It is a well known fact that Colletotrichum gloeosporioides is a phytopathogenic fungus
that affects various crops in all types of climates; it is known as the causative agent of antracnosis.
On the other hand, it has been observed that, unlike other phytopathogenic species, this one
produces glomeruli of fatty nature. However, although there are many reports in the literature
regarding fitotoxic metabolites of various species of Colletotrichun, relatively no relevance has
been given to a massive production of fatty acids using members of this genus when compared to
other phytopathogenic fungi. Based on this fact, the aim of this paper was to characterize the
chemical nature of the glomeruli which were found to be made up of palmitic, oleic, estearic and
linoleic acids in the proportions of 40.1, 35.2, 18.8 and 5.9 % respectively. This conclusion was
reached conducting spectroscopic techniques such as nuclear magnetic resonance and mass
spectrometry. Finally, the high production of fatty acids obtained in vitro as well as on fruiting
bodies by C. gloeosporioides opens the possibility of a better understanding about how this
species is able to produce massive amounts of fatty acids as a possible non-selective strategy of
invasion and penetration or as a mere evolutive characteristic of the genus which may be useful
for its identification in the field.
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