TY - JOUR
T1 - Calonectria species isolated from Eucalyptus plantations and nurseries in South China
AU - Li, JieQiong
AU - Wingfield, Michael J.
AU - Liu, Qianli
AU - Barnes, Irene
AU - Roux, Jolanda
AU - Lombard, Lorenzo
AU - Crous, Pedro W.
AU - Chen, ShuaiFei
PY - 2017/12
Y1 - 2017/12
N2 - Diseases caused by species of Calonectria (Ca.) represent a serious threat to the growth and sustainability of Eucalyptus plantations in China. Symptoms caused by these fungi mainly include leaf blight on trees in plantations and rotting of stems and leaves in nurseries. Extensive surveys have recently been conducted where Calonectria species were collected in Eucalyptus plantations and nurseries in the FuJian, GuangDong, GuangXi, and YunNan Provinces of South China. Additional isolates were baited from soil samples in the Hong Kong Region. The aim of this study was to identify the 115 Calonectria isolates obtained using comparisons of DNA sequence data for the -tubulin (tub2), calmodulin (cmdA), histone H3 (his3) and partial translation elongation factor-1 (tef1) gene regions as well as their morphological features. Seven known species were identified, including Calonectria arbusta, Ca. asiatica, Ca. chinensis, Ca. eucalypti, Ca. hongkongensis, Ca. mossambicensis and Ca. pentaseptata. In addition, six novel taxa were collected and are described here as Ca. aciculata, Ca. honghensis, Ca. lantauensis, Ca. pseudoturangicola, Ca. pseudoyunnanensis, and Ca. yunnanensis spp. nov. Overall, the results reflect a high diversity of Calonectria species in China.
AB - Diseases caused by species of Calonectria (Ca.) represent a serious threat to the growth and sustainability of Eucalyptus plantations in China. Symptoms caused by these fungi mainly include leaf blight on trees in plantations and rotting of stems and leaves in nurseries. Extensive surveys have recently been conducted where Calonectria species were collected in Eucalyptus plantations and nurseries in the FuJian, GuangDong, GuangXi, and YunNan Provinces of South China. Additional isolates were baited from soil samples in the Hong Kong Region. The aim of this study was to identify the 115 Calonectria isolates obtained using comparisons of DNA sequence data for the -tubulin (tub2), calmodulin (cmdA), histone H3 (his3) and partial translation elongation factor-1 (tef1) gene regions as well as their morphological features. Seven known species were identified, including Calonectria arbusta, Ca. asiatica, Ca. chinensis, Ca. eucalypti, Ca. hongkongensis, Ca. mossambicensis and Ca. pentaseptata. In addition, six novel taxa were collected and are described here as Ca. aciculata, Ca. honghensis, Ca. lantauensis, Ca. pseudoturangicola, Ca. pseudoyunnanensis, and Ca. yunnanensis spp. nov. Overall, the results reflect a high diversity of Calonectria species in China.
KW - Cylindrocladium
KW - forest pathogens
KW - Nectriaceae
KW - phylogeny
KW - soil
KW - systematics
U2 - 10.5598/imafungus.2017.08.02.04
DO - 10.5598/imafungus.2017.08.02.04
M3 - Article
SN - 2210-6340
VL - 8
SP - 259
EP - 294
JO - IMA Fungus
JF - IMA Fungus
IS - 2
ER -