2017
DOI: 10.3390/f8040104
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Simulated Summer Rainfall Variability Effects on Loblolly Pine (Pinus taeda) Seedling Physiology and Susceptibility to Root-Infecting Ophiostomatoid Fungi

Abstract: Abstract:Seedlings from four families of loblolly pine (Pinus taeda L.) were grown in capped open-top chambers and exposed to three different weekly moisture regimes for 13 weeks. Moisture regimes varied in intensity and frequency of simulated rainfall (irrigation) events; however, the total amounts were comparable. These simulated treatments were chosen to simulate expected changes in rainfall variability associated with climate change. Seedlings were inoculated with two root-infecting ophiostomatoid fungi as… Show more

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Cited by 4 publications
(9 citation statements)
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“…The L. terebrantis isolate used in the study was determined to be the most virulent isolate among 41 isolates maintained at the Forest Health Dynamics Laboratory (Devkota, ). Several previous artificial stem and root inoculation studies have used these isolates (Chieppa, Eckhardt, & Chappelka, ; Matusick et al., ; Singh et al., ).…”
Section: Methodsmentioning
confidence: 99%
“…The L. terebrantis isolate used in the study was determined to be the most virulent isolate among 41 isolates maintained at the Forest Health Dynamics Laboratory (Devkota, ). Several previous artificial stem and root inoculation studies have used these isolates (Chieppa, Eckhardt, & Chappelka, ; Matusick et al., ; Singh et al., ).…”
Section: Methodsmentioning
confidence: 99%
“…One month into the three watering treatments (April 2015), artificial stem inoculations were conducted as described by Nevill et al [22], Singh et al [15], and Chieppa et al [21] using wound + inoculum method. Five inoculation treatments applied were as follows: L. terebrantis (LOB-R-00-805/ATCC accession no.…”
Section: Inoculation Treatmentmentioning
confidence: 99%
“…Seven seedlings per family within a box received each inoculation treatment. These fungal isolates have been used in previous artificial inoculation studies [15,16,21]. The fungal isolates were maintained at 4 ∘ C in MEA before use and were placed on 2 % MEA plate, 14 days prior to the inoculation experiment.…”
Section: Inoculation Treatmentmentioning
confidence: 99%
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“…The paper on the Eucalyptus rust Austropuccinia psidii [19] provides solid evidence of a phenological type of resistance present in older leaves, while even more complex is the report by Chieppa et al [20] suggesting that genetically inherited susceptibility to a vascular fungus results in great susceptibility to changes in water availability. While interspecific competition driven by pathogens is well known [21], the example by Chieppa et al [20] is a classic example of virtually unstudied intraspecific competition cryptically driven by a pathogen.…”
mentioning
confidence: 96%