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Journal of Agricultural Science and Botany | Volume: 2
November 15-16, 2018 | Paris, France
Plant Science
Natural Products,Medicinal Plants and Traditional Medicines
International Conference on
Joint Event
&
Hybrids of grapevine mildew and oak disease are not able to infect banana trees in South American
rainforests
Jean Legeay
INRA, France
T
oday, plants are important. But diseases of plants are
also important. Two of these diseases are important.
The first one is grapevine mildew. It is important because of
the grapevine’s economic importance all over the globe but
particularly in grapevine producing countries. The second
one is the oak disease, which affects oaks. In this study we
looked at what happens when we cross the grapevinemildew
with the oak disease. We took 50 grapevine mildews isolates
and crossed them with 30 oak disease isolates. Surprisingly,
none of the isolates was able to fertilize other isolates. When
BET was added into the fertilizing mix, all isolates appeared
to die. We then took 15 grapevine mildew isolates and 15
oak disease isolates and put them into some banana trees
in South American rainforests. Surprisingly, the banana trees
did not appear to be affected by the isolates ; however,
when grew in darkness, the grapevine mildew appears to
be able to evolve into a fungi which can grow into the soil.
Our results show that, overall, no phylogenetic connection
or « evolutionary bridge » exist between the grapevine, the
oaks, and the banana trees, and between their associated
pathogenic fungi. However, a host jump from banana tree to
other monocotyledon crops, such as tobacco, is still possible
as not much is still known about the evolutionary biology of
fungi, and should be investigated further.
e:
jean.legeay@inra.frPlant science & Natural Medicine 2018, Volume 2
DOI: 10.4066/2591-7897-C1-003