| Resin flow responses to fertilization, wounding and fungal inoculation in loblolly pine (Pinus taeda) in North Carolina. | |
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MedLine Citation:
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PMID: 18381265 Owner: NLM Status: MEDLINE |
Abstract/OtherAbstract:
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Resin flow is the primary means of natural defense against southern pine beetle (Dendroctonus frontalis Zimm.), the most important insect pest of Pinus spp. in the southern United States. As a result, factors affecting resin flow are of interest to researchers and forest managers. We examined the influence of fertilization, artificial wounding and fungal inoculation on resin flow in 6- and 12-year-old stands of loblolly pine (Pinus taeda L.) and determined the extent of that influence within and above the wounded stem area and through time. Fertilization increased constitutive resin flow, but only the younger trees sustained increased resin flow after wounding and inoculation treatments. An induced resin flow response occurred between 1 and 30 days after wounding and inoculation treatments. Wounding with inoculation resulted in greater resin flow than wounding alone, but increasing amounts of inoculum did not increase resin flow. Increased resin flow (relative to controls) lasted for at least 90 days after wounding and inoculation. This increase appeared to be limited to the area of treatment, at least in younger trees. The long-lasting effects of fungal inoculation on resin flow, as well as the response to fertilization, suggest that acquired resistance through induced resin flow aids in decreasing susceptibility of loblolly pine to southern pine beetle. |
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Authors:
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Larissa Knebel; Daniel J Robison; Thomas R Wentworth; Kier D Klepzig |
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Publication Detail:
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Type: Journal Article; Research Support, Non-U.S. Gov't; Research Support, U.S. Gov't, Non-P.H.S. |
Journal Detail:
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Title: Tree physiology Volume: 28 ISSN: 0829-318X ISO Abbreviation: Tree Physiol. Publication Date: 2008 Jun |
Date Detail:
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Created Date: 2008-04-02 Completed Date: 2008-08-11 Revised Date: - |
Medline Journal Info:
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Nlm Unique ID: 100955338 Medline TA: Tree Physiol Country: Canada |
Other Details:
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Languages: eng Pagination: 847-53 Citation Subset: IM |
Affiliation:
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Department of Plant Biology, North Carolina State University, Raleigh, NC 27695, USA. lknebel@ves.org |
Export Citation:
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APA/MLA Format Download EndNote Download BibTex |
| MeSH Terms | |
Descriptor/Qualifier:
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Animals Beetles Fertilizers* North Carolina Pinus taeda* / drug effects, growth & development, microbiology, parasitology Plant Diseases / microbiology, parasitology Trees / drug effects, growth & development, microbiology, parasitology Wounds and Injuries |
| Chemical | |
Reg. No./Substance:
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0/Fertilizers |
From MEDLINE®/PubMed®, a database of the U.S. National Library of Medicine
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