Recovery of «Phaemoniella chlamydospora» and «Phaeoacremonium inflatipes» from Soil and Grapevine Tissues

Akif Eskalen, Susanne Rooney, W. Douglas Gubler


Rose Bengal Chloramphenicol Agar (RBCA) appears to be a suitable media for isolating Phaeoacremonium
spp. and Phaeomoniella chlamydospora from soil, spore traps and plant tissue. Using the soil-plate method, populations
of these organisms were recovered from the soil and surfaces of plant tissue from many different regions of California.
In addition, in a few vineyard sites these fungi were recovered from dried plant sap, which had oozed from
grapevine girdling wounds and from standing water under grapevine drip systems. RBCA, along with a filtering
system, is a useful tool in determining the presence of Petri disease pathogens in vineyard soils, water, and plant
tissues. This research presents the first report of the recovery of Phaeoacremonium inflatipes from soil and standing
water under grapevines.

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