White rot is an economically significant disease of Allium crops. The pathogen Sclerotium cepivorum produces long-lived sclerotia that germinate in response to sulfur-containing compounds released from Allium roots. Diallyl disulfide (DADS) was the primary organic sulfur compound detected in the rhizosphere soil of two garlic cultivars, “California Early and Late”, growing in greenhouse conditions. DADS, dimethyl trisulfide (DMTS), dimethyl disulfide (DMDS), isopropyl disulfide (IPDS), dipropyl disulfide (DPDS), diethyl disulfide (DEDS), together with garlic oil, garlic juice, garlic powder, raw onion pieces, cabbage pieces, and Chinese cabbage pieces were investigated for their activities toward germinating dormant sclerotia. Results showed that DADS and other volatile sulfur compounds could stimulate sclerotial germination, and a dose–response was observed. In addition, garlic juice, powder, raw onion, and the two cabbages could stimulate sclerotial germination. Furthermore, the laboratory soil incubation experiments demonstrated the strong interaction of organic sulfur compounds with soil.

中文翻译：

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硫基生物刺激剂对 Sclerotium cepivorum 菌核萌发的评价及其与土壤的相互作用

白腐病是一种对葱属作物具有重大经济影响的病害。病原体Sclerotium cepivorum产生长寿命的菌核，这些菌核会因葱属植物释放的含硫化合物而发芽根。二烯丙基二硫化物 (DADS) 是在温室条件下生长的两个大蒜品种“加州早熟和晚熟”的根际土壤中检测到的主要有机硫化合物。DADS，二甲基三硫醚（DMTS），二甲基二硫醚（DMDS），异丙基二硫醚（IPDS），二丙基二硫醚（DPDS），二乙基二硫醚（DEDS），连同大蒜油，大蒜汁，大蒜粉，生洋葱片，卷心菜片，研究了大白菜片对萌发休眠菌核的活性。结果表明，DADS 和其他挥发性硫化合物可以刺激菌核萌发，并观察到剂量反应。此外，大蒜汁、大蒜粉、生洋葱和两片卷心菜均能刺激菌核萌发。此外，