exudates

research has been done on the antibacterial action of garlic bulb, but whether garlic root exudates has allelopathy and the mechanism of garlic functioned as a fine stubble crop are not clear.

虽然有关大蒜鳞茎抑菌效应方面已有一些探索，但根系分泌物是否具有化感作用及其对后茬作物的影响机制尚不明确。

RESULTS: No IL-8 was detected in the samples from normal pulp, but significant amount of IL-8 appeared in inflamed pulp tissues, and the level of IL-8 in exudates of acute stage of pulpitis was higher than that of chronic stage ( P < 0.01).

结果：正常牙髓组织渗出液中检测不到IL-8，而炎症牙髓组织渗出液中均有较高水平的IL-8（0.33～1.0μg/L），且在急性牙髓炎中的水平高于慢性牙髓炎（P<0.01）。

The allelochemicals of S. canadensis secreted into sands can also inhibit the activity of soil-borne pathogens. They can decrease the mortality rate of tomato seedlings. But the roots exudates of Kummerowia striata have no allelopathic effects on these two species of soil-bome pathogens.

加拿大一枝黄花根系分泌到体外的化感物质对土传病原菌的致病活性也有抑制作用，能降低番茄幼苗死亡率，但本地植物鸡眼草（Kummerowia striata）根系分泌物却无化感作用。