Complex interactions among host pines and fungi vectored by an invasive bark beetleAuthor(s): Min Lu; Michael J. Wingfield; Nancy E. Gillette; Sylvia R. Mori; Jian-Hua Sun
Source: New Phytologist 187: 859-866
Publication Series: Scientific Journal (JRNL)
Download Publication (400.55 KB)
DescriptionRecent studies have investigated the relationships between pairs or groups of exotic species to illustrate invasive mechanisms, but most have focused on interactions at a single trophic level.
Here, we conducted pathogenicity tests, analyses of host volatiles and fungal growth tests to elucidate an intricate network of interactions between the host tree, the invasive red turpentine beetle and its fungal associates.
Seedlings inoculated with two strains of Leptographium procerum isolated from Dendroctonus valens in China had significantly longer lesions and higher mortality rates than seedlings inoculated with other fungal isolates. These two strains of L. procerum were significantly more tolerant of 3-carene than all other fungi isolated there, and the infection of Chinese pine (Pinus tabuliformis) seedlings by these two strains enhanced the production and release of 3-carene, the main attractant for D. valens, by the seedlings.
Our results raise the possibility that interactions among the fungal associates of D. valens and their pine hosts in China may confer advantages to these strains of L. procerum and, by extension, to the beetles themselves. These interactions may therefore enhance invasion by the beetle–fungal complex.
- You may send email to email@example.com to request a hard copy of this publication.
- (Please specify exactly which publication you are requesting and your mailing address.)
- We recommend that you also print this page and attach it to the printout of the article, to retain the full citation information.
- This article was written and prepared by U.S. Government employees on official time, and is therefore in the public domain.
CitationLu, Min; Wingfield, Michael J.; Gillette, Nancy E.; Mori, Sylvia R.; Sun, Jiang-Hua. 2010. Complex interations among host pines and fungi vectored by an invasive bark beetle. New Phytologist 187: 859-866.
Keywordsbark beetle–fungi–host interactions, chemical ecology, complex interactions, invasive pecies, invasive symbiotic complex.
- Do novel genotypes drive the success of an invasive bark beetle–fungus complex? Implications for potential reinvasion
- Cross-Attraction between an Exotic and a Native Pine Bark Beetle: A Novel Invasion Mechanism?.
- Red Turpentine Beetle, Dendroctonus valens LeConte (Coleoptera: Scolytidae), Response to Host Semiochemicals in China
XML: View XML