Botrytis allii and Sclerotium cepivorum, which respectively cause neck rot and white rot of onions, produce a range of cell-wall-degrading enzymes in onion tissue (Hancock et al., 1964; Beck, 1976). The two fungi have been grown on liquid media using purified onion cell walls, prepared by an adaptation of the method of Jarvis et al. (1977), as the sole carbon source for B. allii and the major c...

The number of onion consignments which are rejected or downgraded due to the incidence internal defects is a continuing problem for wholesalers and growers. Defects may only be up 4% level, but result in entire lot being lost sale. Destructive quality control testing causes waste, so that there need alternative non-invasive assessment. aim current research was demonstrate whether could detected...

Neck rot caused by the fungus Botrytis allii Munn. is one of most devastating diseases onions (Allium cepa L.) resulting in significant yield losses. This disease latent nature developing symptomless onion plants field with bulbs typically showing symptoms 1-2 months after harvest storage. Molecular studies were conducted to detect infections neck fields Manitoba, Canada. Plant samples cultivar...

Commercially distributed garlic (Allium sativum) seed cloves from six states of the United States and mainland China were surveyed for the presence of fungi recorded as pathogenic to garlic in the literature. Aspergillus niger, A. ochraceus, Botrytis porri, Embellisia allii, Fusarium oxysporum f. sp. cepae, F. proliferatum and Penicillium hirsutum, were each recovered from one or more of these ...

The culture conditions for the enhanced mycelial growth of Ramaria botrytis was investigated. The optimal temperature and pH for the mycelial growth were 24℃ and 5.0, respectively. It was shown that starch was best of several carbon sources in Czapek-Dox medium as a minimal medium for the enhanced mycelial growth. Organic nitrogen sources were better than inorganic ones for mycelial growth. The...