Colonization of diseased Acacia koa trees with Fusarium species /

Bibliographic Details
Main Author:	James, Robert L.
Corporate Author:	United States. Forest Service. Northern Region. State & Private Forestry. Forest Health Protection
Other Authors:	Dudley, N. S., Yeh, A.
Format:	Government Document eBook
Language:	English
Published:	Missoula, MT : U.S. Dept. of Agriculture, Forest Service, Northern Region, Forest Health Protection, [2007]
Series:	FHP report ; no. 07-06.
Subjects:	Koa > Diseases and pests > Hawaii. Fusarium diseases of plants > Hawaii. Fungal colonies > Hawaii.
Online Access:	https://purl.fdlp.gov/GPO/LPS97822

Description
Abstract:	Fifty-two Acacia koa trees with wilt/dieback disease symptoms in Hawaii were sampled for associated Fusarium spp. within their roots, stems and branches. Fusarium oxysporum was isolated from nearly 35% of all sampled roots and was especially common on healthy-appearing fine feeder roots. Fusarium solani was isolated most frequently from stem and branch tissues, but also occurred on more than 10% of sampled roots. A total of fourteen Fusarium spp. were detected within diseased trees; we suspect that most of these were probably non-pathogenic fungal endophytes. We found that F. oxysporum commonly colonized diseased trees, especially roots. Coupled with our results from pathogenicity testing, we believe that this fungal species is probably important in koa wilt/dieback disease etiology.
Item Description:	Title from title screen (viewed on Oct. 31, 2007). "September 2007." Electronic resource.
Physical Description:	8 pages : digital, PDF file.
Format:	System requirements: PDF reader. Mode of access: Internet from the FHP web site. Address as of 7/23/08: http://www.fs.fed.us/r1-r4/spf/fhp/publications/bynumber/R1pub%5F07-06%5Fdisease%5Facacia%5Fkoa.pdf ; current access available via PURL.
Bibliography:	Includes bibliographical references (pages 4-5).