Multiple choice Which of the following statements is incorrect regarding pseudomonas syringae? Pseudomonas syringae is a gram negative bacterium. Pseudomonas syringae has a polar flagella. Pseudomonas syringae is a plant pathogen. Pseudomonas syringae tests positive for arginine dihydrolase and oxidase activity. None of these Reveal answer Fill a bubble to check yourself D Correct answer Explanation Pseudomonas syringae tests negative, not positive, for arginine dihydrolase and oxidase activity. Therefore, this statement is incorrect.