Chemical Signals of Vector Beetle Facilitate the Prevalence of a Native Fungus and the Invasive Pinewood Nematode
In China, the invasive , the vector beetle, and associated fungi exhibit a symbiotic relationship causing serious losses to pine forests. Although this complex system has been intensively investigated, the role of vector beetles on the development of associated fungi and their indirect contribution...
Saved in:
Published in | Journal of nematology Vol. 49; no. 4; pp. 341 - 347 |
---|---|
Main Authors | , , , , , , , , |
Format | Journal Article |
Language | English |
Published |
United States
Sciendo
01.12.2017
The Society of Nematologists |
Subjects | |
Online Access | Get full text |
Cover
Loading…
Summary: | In China, the invasive
, the vector
beetle, and associated fungi exhibit a symbiotic relationship causing serious losses to pine forests. Although this complex system has been intensively investigated, the role of vector beetles on the development of associated fungi and their indirect contribution to the prevalence of pinewood nematode (PWN) is yet unknown. Here, three of the highly prevalent fungal species, viz.,
sp. 1,
, and
sp. 2 were isolated from beetle chambers in diseased trees in Guangdong province, southeast China. Pairwise cultivation of isolated fungi demonstrated the dominance of
sp. 1 over
and
sp. 2. On the other hand, two fatty acid ethyl esters (FAEE), ethyl palmitate (EP) and ethyl linoleate (EL), isolated from the body surface of the vector beetle enhanced the growth of
sp. 1. When PWN were cultured on
sp. 1, the fecundity and the body length were increased significantly as compared with when cultured on
and
sp. 1. Our results suggest that the vector beetles promote
sp. 1 to occupy more niches by rapid growth and spread, which in turn better support PWN population, hence facilitate PWN pathogenicity in the invasive regions. |
---|---|
Bibliography: | ObjectType-Article-1 SourceType-Scholarly Journals-1 ObjectType-Feature-2 content type line 23 These authors contributed equally to this work. This paper was edited by Raquel Campos-Herrera. E-mails: zhaoll@ioz.ac.cn and sunjh@ioz.ac.cn. This work was funded by the National Science Foundation of China (31630013, 31370650, and 31572272), the CAS Key Research Projects of the Frontier Science (QYZDB-SSW-SMC014), and the CAS Knowledge Innovation Key Research Program (KSCX2-EW-J-2). |
ISSN: | 0022-300X 2640-396X 2640-396X |
DOI: | 10.21307/jofnem-2017-081 |