Clara H. Hasse facts for kids
Quick facts for kids
Clara Henriette Hasse
|
|
|---|---|
 |
|
| Born | 1880 |
| Died | 10 October 1926 Muskegon, Michigan
|
| Alma mater | University of Michigan |
| Known for | Identified the cause of citrus canker |
| Scientific career | |
| Fields | Botanist focused on plant pathology |
| Institutions | Bureau of Plant Industry, U.S. Department of Agriculture; Florida Agricultural Experiment Station |
| Author abbrev. (botany) | C.H.Hasse |
Clara Henriette Hasse (born 1880 – died 1926) was an American scientist. She was a botanist, which means she studied plants. Her main work was in plant pathology, which is about plant diseases.
Clara Hasse is famous for finding out what caused a serious plant disease called citrus canker. This disease was a big threat to citrus fruit crops in the southern United States.
About Her Life
Clara Hasse went to the University of Michigan. In 1902, she became an assistant in botany there. She was also a founding member of the Women's Research Club at the university. This was important because women were not allowed in the main Research Club at that time.
After graduating in 1903, she moved to Washington, D.C.. She started working for the U.S. Department of Agriculture (USDA). She was an assistant horticulturist and botanist. A horticulturist studies how to grow plants. She worked under a famous plant pathologist named Erwin Frink Smith. Later, she also worked at the Florida Agricultural Experiment Station. Clara Hasse passed away at her home in Muskegon, Michigan, when she was 46 years old.
Her Important Discovery
Clara Hasse wrote a paper in 1915 called "Pseudomonas citri, the cause of Citrus canker". This paper was the first to correctly identify what caused citrus canker. People first thought a fungus caused the disease. But Clara Hasse discovered that tiny bacteria were actually the problem.
She was able to isolate these bacteria. Today, they are known as Xanthomonas axonopodis pv. citri. Her important research helped scientists understand how plant diseases work. Her findings were used in official USDA guides about plant diseases.
Her work was very important for farmers. Because of her research, scientists found ways to control citrus canker. This stopped the disease from destroying all the citrus crops in states like Florida, Alabama, Mississippi, and Texas.
See also
In Spanish: Clara H. Hasse para niños
