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Plant Dis

Title:		Ultrastructural Studies of the Effects of Allium sativum on Phytopathogenic Fungi in vitro
Author(s):		Bianchi A; Zambonelli A; D'Aulerio AZ; Bellesia F;
Address:		"Dipartimento di Biologia Evolutiva e Funzionale, viale delle Scienze, 43100 Parma. Dipartimento di Protezione e Valorizzazione Agroalimentare, via Filippo Re 8, 40126 Bologna. Dipartimento di Chimica, via Campi 183, 41100 Modena"
Journal Title:		Plant Dis
Year:		1997
Volume:		81
Issue:		11
Page Number:		1241 - 1246
DOI:		10.1094/PDIS.1997.81.11.1241
ISSN/ISBN:		0191-2917 (Print) 0191-2917 (Linking)
Abstract:		"A study was made of the effects of garlic on the development of mycelium in the following phytopathogenic fungi: Fusarium solani (Mart.) Sacc., Rhizoctonia solani Kuhn, Pythium ultimum Trow var. ultimum, and Colletotrichum lindemuthianum (Sacc. and Magnus) Briosi and Cav. A suspension of micronized garlic powder, which has volatile organic compounds mainly consisting of linear chain aldehydes, allyl sulfides and disulfides, was used for the trials. Mycelial development of the fungi was strongly inhibited at the maximum concentration of the aqueous extract tested (100 ml/liter); however only the growth of P. ultimum var. ultimum was entirely blocked. Transmission and scanning electron microscopy revealed cytomorphological alterations of the hyphae treated with garlic. R. solani and C. lindemuthianum hyphae appeared especially collapsed, while those of F. solani were less damaged, although thinner than the control hyphae. A general increase in vacuolization was also observed, with consequent reduction in the cytoplasm of the treated fungal cells. R. solani also revealed a thickening of the cell wall, whereas C. lindemuthianum revealed a singular accumulation of osmiophil bodies immediately under the cell membrane"
Keywords:
Notes:		"PubMed-not-MEDLINEBianchi, Alberto Zambonelli, Alessandra D'Aulerio, Aldo Zechini Bellesia, Franco eng 1997/11/01 Plant Dis. 1997 Nov; 81(11):1241-1246. doi: 10.1094/PDIS.1997.81.11.1241"