Galactomyces reessii

Galactomyces reessii is a yeast belonging to the genus "Galactomyces".
It contains an enzyme that converts 3-methylcrotonic acid to 3-hydroxy-3-methylbutyric acid aka β-hydroxy β-methylbutyric acid. It can also have an enzyme that dissolves pectin.
"Galactomyces reessii" lives naturally in soil and on decaying vegetable matter.
"Galactomyces reessii" does not consume D-mannitol. It cannot ferment glucose.