In California's Mediterranean climate, management of grapevine trunk diseases (Botryosphaeria dieback, Eutypa Phomopsis Esca) focuses on protecting vines during the dormant season, when pruning coincides with rain-induced spore dispersal causal fungi (‘trunk pathogens’). Applying protectants (fungicides, toxic barriers, sealants, biocontrol agents) after can minimize infection wounds. For seaso...

The objective of this study was to determine in vitro the time required for calcium hydroxide in direct contact with microorganisms to express its antimicrobial effect. The microorganisms used were: Micrococcus luteus (ATCC-9341), Staphylococcus aureus (ATCC-6538), Fusobacterium nucleatum (ATCC-25586), Pseudomonas aeruginosa (ATCC-27853), Escherichia coli, and Streptococcus sp. The strains were...

Method development for determination of isoflavones in kudzu was achieved by HPLC/UV/ESI-MSD. Using three kudzu species of Pueraria lobata, P. thomsonii and P. edulis, and analyzing the isoflavones separately by species and from different plant tissues (roots, stems, leaves, flowers and fruits) in each species, a total of 25 isoflavones were identified by their molecular ions and characteristic...

In Western Australia large areas of lupins are grown, and the stubbles of these crops provide valuable summer grazing for sheep in the absence of lupinosis. Lupinosis is a mycotoxicosis resulting from the ingestion of phomopsins (Culvenor et al. 1977), toxins produced on lupin stubbles by the fungus Phomopsis leptostromiformis (van Wannelo et al. 1970). It is often a fatal disease, but apart fr...

Our purpose was to determine the anti-Mycobacterium tuberculosis activity of the metabolites produced by the endophitic fungus Phomopsis stipata (Lib.) B. Sutton, (Diaporthaceae), cultivated in different media. The antimycobacterial activity was assessed through the Resazurin Microtiter Assay (REMA) and the cytotoxicity test performed on macrophage cell line. The extracts derived from fungi gro...