| There is no effect if the glass cover of the petri dish is between plate and bacteria. |
| A plasmodium that appeared suddenly and passed to fruit on agar in a petri dish offers a valuable suggestion for further research. |
| It could only be detected by its ability to kill bacteria on a petri dish. |
| Jimmy watches as the krill contracts violently, trying to escape the forceps as Simon plucks her from the net and drops her onto a petri dish. |
| But Lebanon was a tiny country where the fighting could be contained like a plague in a petri dish. |
| Glass coverslips were adhered to the petri dish by placing them over each water drop. |
