Du Y, Gong Z-H, Liu G-Z, Chai G-X, Li C
College of Horticulture, Northwest A&F University, Yangling, Shaanxi, China.
College of Horticulture, Northwest A&F University, Yangling, Shaanxi, China
Genet Mol Res. 2014 Jan 21;13(1):396-405. doi: 10.4238/2014.January.21.7.
Phytophthora capsici from seven provinces of China were investigated for their mating type, hyphal growth, zoospore production, and virulence. All of the morphological characteristics and the results of polymerase chain reaction confirmed that these isolates were indeed Phytophthora capsici. The test of mating type showed that the mating types of 19 representative isolates from China varied. The hyphal growth and the amount of zoospores produced from these isolates differed and there was no evident relationship between them, which indicated the existence of genetic diversity among the isolates in China. Also, the isolates that were more virulent on the pepper cultivars that we checked produced more zoospores than other isolates.
对来自中国七个省份的辣椒疫霉进行了交配型、菌丝生长、游动孢子产生和毒力的研究。所有形态特征和聚合酶链反应结果均证实这些分离株确实是辣椒疫霉。交配型测试表明，来自中国的19个代表性分离株的交配型各不相同。这些分离株的菌丝生长和游动孢子产生量存在差异，且二者之间没有明显关系，这表明中国的分离株之间存在遗传多样性。此外，在我们检测的辣椒品种上毒力更强的分离株比其他分离株产生的游动孢子更多。
