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DOI:	10.1371/journal.pone.0103450
论文题名:	Phytophthora ×stagnum nothosp. nov., a New Hybrid from Irrigation Reservoirs at Ornamental Plant Nurseries in Virginia
作者:	Xiao Yang; Patricia A. Richardson; Chuanxue Hong
刊名:	PLOS ONE
ISSN:	1932-6203
出版年:	2014
发表日期:	2014-7-29
卷:	9, 期:7
语种:	英语
英文关键词:	Phytophthora ; Sequence alignment ; Oogonia ; Sequence analysis ; Aquatic environments ; Plant pathogens ; Agricultural irrigation ; Virginia
英文摘要:	A novel Phytophthora species was frequently recovered from irrigation reservoirs at several ornamental plant production facilities in eastern Virginia. Initial sequencing of the internal transcribed spacer (ITS) region of this species generated unreadable sequences due to continual polymorphic positions. Cloning and sequencing the ITS region as well as sequencing the mitochondrially encoded cytochrome c oxidase 1 and beta-tubulin genes revealed that it is a hybrid between P. taxon PgChlamydo as its paternal parent and an unknown species genetically close to P. mississippiae as its maternal parent. This hybrid has some diagnostic morphological features of P. taxon PgChlamydo and P. mississippiae. It produces catenulate hyphal swellings, characteristic of P. mississippiae, and chlamydospores, typical of P. taxon PgChlamydo. It also produces both ornamented and relatively smooth-walled oogonia. Ornamented oogonia are another important diagnostic character of P. mississippiae. The relatively smooth-walled oogonia may be indicative of oogonial character of P. taxon PgChlamydo. The new hybrid is described here as Phytophthora ×stagnum.
URL:	http://journals.plos.org/plosone/article/file?id=10.1371/journal.pone.0103450&type=printable
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资源类型:	期刊论文
标识符:	http://119.78.100.158/handle/2HF3EXSE/18641
Appears in Collections:	过去全球变化的重建影响、适应和脆弱性科学计划与规划气候变化与战略全球变化的国际研究计划气候减缓与适应气候变化事实与影响

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journal.pone.0103450.PDF（5349KB）	期刊论文	作者接受稿	开放获取	CC BY-NC-SA	View Download

作者单位:

Hampton Roads Agricultural Research and Extension Center, Virginia Tech, Virginia Beach, Virginia, United States of America;Hampton Roads Agricultural Research and Extension Center, Virginia Tech, Virginia Beach, Virginia, United States of America;Hampton Roads Agricultural Research and Extension Center, Virginia Tech, Virginia Beach, Virginia, United States of America

Recommended Citation:

Xiao Yang,Patricia A. Richardson,Chuanxue Hong. Phytophthora ×stagnum nothosp. nov., a New Hybrid from Irrigation Reservoirs at Ornamental Plant Nurseries in Virginia[J]. PLOS ONE,2014-01-01,9(7)

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