Marie Beatrice Schol-Schwarz
Bea Schwarz (left) and her doctoral advisor Johanna Westerdijk in 1922
Marie Beatrice Schwarz
12 July 1898
|Died||27 July 1969 (aged 71)|
|Alma mater||Utrecht University|
|Doctoral advisor||Johanna Westerdijk|
|Author abbrev. (botany)||M.B.Schwarz|
Marie Beatrice "Bea" Schol-Schwarz (12 July 1898 – 27 July 1969) was the Dutch phytopathologist who discovered the causal fungus of Dutch elm disease. She first studied pathogens afflicting peanuts and later the fungus Phialophora.
She studied at the Utrecht University in the Netherlands, where she was Johanna Westerdijk's first PhD student. During her studies in 1922, she discovered the causal fungus of Dutch elm disease. Schwarz spent most of her early professional life studying pathogens afflicting the groundnut Arachis hypogaea at the agricultural research station in Bogor.
Marrying in 1926, she retired from research to raise a family. When the East Indies were invaded by the Japanese army in 1942, Schwarz and her husband were interned in separate camps, her husband dying soon afterwards. After liberation, Schwarz and her two sons returned to the Netherlands, where she joined the Centraal Bureau voor Schimmelcultures (Central Bureau for Fungus Cultures) in Baarn, studying various fungi and writing a monograph on the genus Epicoccum.
After her second retirement, she continued to study the genus Phialophora despite her rapidly failing health. Shortly before her death in 1969, she was made an Officer in the Order of Orange Nassau in recognition of her contribution to phytopathology 
Schwarz died on 27 July 1969, at the age of 71, in Baarn.
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