Glomerella

Abstract: The sporulating endophytic fungi isolated from Magnolia liliifera were identified to genus or species level using morphological characters. Non-sporulating isolates are generally termed as ‘mycelia sterilia’ and are grouped as ‘morphospecies’ based on similar cultural characters. Mycelia sterilia were grouped to 31 morphospecies and were further identified based on ribosomal DNA (rDNA) sequence analysis. The 5.8S gene, ITS1 and ITS2 regions of rDNA from all morphospecies were amplified and sequenced. Phylogenetic analysis indicated that MS88 were related to the genus Massarina (Lophiostomataceae), MS9, MS11 and MS47 to Xylaria (Xylariaceae), MS19 to Glomerella (Phyllachoraceae), MS25 to Hypoxylon (Xylariaceae), MS27 to Bionectria (Bionectriaceae) and the remaining 24 morphospecies were related to Phomopsis and Diaporthe (anamorphic Phomopsis).

Abstract: The association between the anamorph Colletotrichum acutatum and a new teleomorph, Glom- erella acutata, was documented. Fertile perithecia were produced in a series of crosses between self-ster- ile monoconidial strains of C. acutatum, demonstrat- ing a previously undescribed teleomorph directly as- sociated with the anamorph originally described byJ. H. Simmonds in 1965. Strains capable of crossing in- cluded the C. acutatum type specimen, originally iso- lated from papaya (Carica papaya) in Australia by Simmonds, and other archived and contemporary strains from several hosts from the United States, Aus- tralia and New Zealand. The resulting teleomorph, Glomerella acutata, was described and illustrated as a new species which can be distinguished from other taxa by a combination of features of the anamorph, the teleomorph, and mitochondrial and nuclear DNA. Perithecia of G. acutata were black-brown, pre- dominantly ampulliform, 125 x 312 ILm (mean 183 ILm) diam, ostiolate and periphysate. Asci were nar- rowly clavate and bore up to eight oblong to ellip- soidal ascospores which measured 8.5-(15.7)-25.1 X 3.1-(5.8)-8.1 ,um.