共 50 条
New species of Nectria and Thyronectria from Xinjiang, China
被引:3
|作者:
Ma, Rong
[1
,2
]
Li, Sheng-Nan
[1
]
Zhao, Ying
[1
]
Wang, Min
[1
]
Michailides, Themis J.
[2
]
Tian, Cheng-Ming
[3
]
机构:
[1] Xinjiang Agr Univ, Coll Forestry & Hort, Urumqi 830052, Peoples R China
[2] Univ Calif Davis, Kearney Agr Res & Extens Ctr, Dept Plant Pathol, Parlier, CA 93648 USA
[3] Beijing Forestry Univ, Key Lab Silviculture & Conservat, Minist Educ, Beijing 100083, Peoples R China
来源:
基金:
中国国家自然科学基金;
关键词:
Berberis heteropoda;
molecular phylogeny;
Nectriaceae;
taxonomy;
RE-EXAMINATIONS;
HYPOCREALES;
BIONECTRIACEAE;
PHYLOGENY;
FUSARIUM;
NUCLEAR;
DEPOSIT;
D O I:
10.11646/phytotaxa.433.4.1
中图分类号:
Q94 [植物学];
学科分类号:
071001 ;
摘要:
Nectria berberidis sp. nov. and Thyronectria berberidicola sp. nov. isolated from Berberis heteropoda in Xinjiang Uygur Autonomous Region, China, are described and illustrated. Nectria berberidis is characterized by clavate asci (50-87 x 8-12 mu m) with ellipsoidal to fusiform, 1-septate ascospores. Thyronectria berberidicola is characterized by clavate asci (117-25.9 x 63.7-117.9 mu m) with ellipsoidal to fusiform ascospores that have 5-8 transverse septa and 1(-2) longitudinal septum. Ascospores bud to produce hyaline, bacillar ascoconidia. Phylogenetic analyses based on alpha-actin (ACT), the internal transcribed spacer (ITS), the large nuclear ribosomal RNA subunit (LSU), translation elongation factor 1-alpha (TEF1) and the beta-tubulin (TUB) sequence data revealed that isolates of N. berberidis and T. berberidicola form a distinct clade within Nectria and Thyronectria, respectively. In addition, Nectria nigrescens is reported for the first time in China.
引用
收藏
页码:253 / 264
页数:12
相关论文