In favorable vintages, the late summer and early fall months will bring climate conditions that encourage moisture and mist in the morning and enough sunshine in the afternoon to promote the development of favorable Botrytis cinerea rot instead of less desirable forms of grape rot.
The town and its vineyards are separated from the area of Sauternes to the south by the Ciron river, whose cooling effect is of key importance in encouraging the annual action of the Botrytis fungus on the Sémillon grapes.
The intense sweetness is the result of the grapes being affected by Botrytis cinerea, a fungus that is commonly known as noble rot.
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The area of Sauternes (including Barsac) is known for its botrytized dessert wines.
The moisture it brings, and morning mists it causes, are favorable to the development of Botrytis cinerea on grapes, a fungus that contributes to the high quality and renown of Sauternes wines.
The intense sweetness is the result of the grapes being affected by Botrytis cinerea, a fungus commonly known as noble rot.
The two vines also have similar susceptibility to Botrytis.
The microclimate is determined by the sunny, south-facing slopes and the proximity of the Tisza and Bodrog rivers, and is conducive to the proliferation of Botrytis (noble rot) and the subsequent desiccation of the grapes.
Botrytis cinerea | Erica cinerea | Salix cinerea | Formica cinerea |
Tribromoanisole is usually produced when naturally occurring airborne fungi and/or bacteria (usually Aspergillus sp., Penicillium sp., Actinomycetes, Botrytis cinerea, Rhizobium sp., or Streptomyces) are presented with brominated phenolic compounds, which they then convert into bromoanisole derivatives.
TCA is usually produced when naturally occurring airborne fungi and bacteria (usually Aspergillus sp., Penicillium sp., Actinomycetes, Botrytis cinerea, Rhizobium sp., or Streptomyces) are presented with chlorinated phenolic compounds, which they then convert into chlorinated anisole derivatives.
Researchers at the Agricultural Research Service investigated the antimicrobial effects of Muscodor albus on Botrytis cinerea, which causes the common grey mold found on table grapes.