Trypanosome infection outcomes in tsetse of differing age and symbiont status.

aSymbiotic bacteria present in tsetse's gut at the time of trypanosome challenge.bExperiments were repeated at least twice.cp values were obtained by comparing infection prevalence of each indicated group to the infection prevalence of mature GmmWT flies.d1st adult blood meal contained infectious trypanosomes.e4th adult blood meal contained infectious trypanosomes.fGmmApo flies underwent intrauterine larval development in the absence of all symbiotic bacteria.gND, no symbionts detectable by PCR.a. 锥虫攻毒时采采蝇肠道内存在共生细菌。 b. 实验至少重复两次。 c. 通过将各指定组的感染率与成熟GmmWT采采蝇的感染率进行比较，得到p值。 d. 成虫首次血液饲喂含有感染性锥虫。 e. 成虫第四次血液饲喂含有感染性锥虫。 f. GmmApo采采蝇在无任何共生细菌的条件下完成子宫内幼虫发育。 g. ND：经PCR检测未检出共生细菌。