Premium
Identification and Pathogenicity of Lasiodiplodia Species from Eucalyptus urophylla × grandis , Polyscias balfouriana and Bougainvillea spectabilis in Southern China
Author(s) -
Li GuoQing,
Arnold Roger J.,
Liu FeiFei,
Li JieQiong,
Chen ShuaiFei
Publication year - 2015
Publication title -
journal of phytopathology
Language(s) - English
Resource type - Journals
SCImago Journal Rank - 0.53
H-Index - 60
eISSN - 1439-0434
pISSN - 0931-1785
DOI - 10.1111/jph.12398
Subject(s) - biology , lasiodiplodia theobromae , botany , eucalyptus , virulence , pathogenicity , horticulture , gene , microbiology and biotechnology , genetics
Species of Lasiodiplodia are important pathogens of a wide variety of plants covering a wide geographical distribution. These fungi can be associated with different symptoms such as stem cankers, shoot blights, fruit rots, dieback and gummosis. Diseases caused by Lasiodiplodia were surveyed on Eucalyptus urophylla × grandis , Polyscias balfouriana and Bougainvillea spectabilis in a nursery in southern China. Based on morphology characteristics and phylogenetic analyses of ITS rDNA sequences and translation elongation factor 1‐alpha (TEF‐1 α ) gene regions, four species of Lasiodiplodia were identified. Lasiodiplodia theobromae was identified from E. urophylla × grandis , P. balfouriana and B. spectabilis . L. hormozganensis , L. iraniensis and L. pseudotheobromae were identified from B. spectabilis . To our knowledge, with the exception of L. theobromae on E. urophylla × grandis , this study represents the first report of these fungi on the host plants. Pathogenicity tests showed that all Lasiodiplodia spp. obtained in this study are virulent to E. urophylla × grandis and B. spectabilis , and L. theobromae was virulent to P. balfouriana .