Title: | Evaluation of Sulfur-Based Biostimulants for the Germination of Sclerotium cepivorum Sclerotia and Their Interaction with Soil |
Author(s): | Qian YL; Hua GKH; Scott JC; Dung JKS; Qian MC; |
Address: | "Department of Crop and Soil Science, Oregon State University, Corvallis, Oregon 97331, United States. Central Oregon Agricultural Research and Extension Center, Oregon State University, Madras, Oregon 97741, United States. Department of Food Science and Technology, Oregon State University, Corvallis, Oregon 97331, United States" |
ISSN/ISBN: | 1520-5118 (Electronic) 0021-8561 (Linking) |
Abstract: | "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" |
Keywords: | *Soil *Sulfur Disulfides Sulfur Compounds Dads Sclerotium cepivorum garlic white rot; |
Notes: | "MedlineQian, Yanping L Hua, Gia Khuong Hoang Scott, Jeness C Dung, Jeremiah K S Qian, Michael C eng 2022/11/19 J Agric Food Chem. 2022 Dec 7; 70(48):15038-15045. doi: 10.1021/acs.jafc.2c05862. Epub 2022 Nov 18" |