pythium irregulare造句

"Pythium irregulare ", like most oomycetes, has a life cycle with sexual and asexual stages.
In order to identify " Pythium irregulare " it is necessary to isolate the organism and observe it microscopically.
"Pythium irregulare " has a very broad host range, including many agronomically and horticulturally important crops and is found on every continent except for Antarctica.
It's difficult to find pythium irregulare in a sentence. 用pythium irregulare造句挺难的