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Abstract Detail

Anatomy and Morphology

Armour, Isabella [1], Cavender-Bares, Jeannine [2], Fallon, Beth [1].

Oak Xylem Anatomy and Pathogen Response.

The oaks (genus Quercus) are the most diverse group of woody trees in the US, making them critical to ecosystem services. Oaks are generally more drought tolerant/resistant than co-occurring trees from other genera, but are nevertheless susceptible to several devastating fungal pathogens. Altered infection and transmission rates of pathogens and increased rainfall variability caused by climate change can cause increased tree mortality; it is thus important to quantify oak vulnerability and response to both drought and pathogens. Understanding the vascular anatomy of oak trees is a good first step toward understanding oak resilience. This research focuses on vascular analyses of Q. macrocarpa (white) and Q. ellipsoidalis (red). We analyzed xylem traits (number of vessels, vessel diameter, intervessel wall thickness, implosion resistance) in saplings to determine whether previously described, genus level vascular trait trends are true for these two species. This research is a preliminary description of anatomical traits which could be useful in predicting species level drought/pathogen vulnerability.

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1 - University of Minnesota Twin Cities, Ecology, Evolution, and Behavior, 1987 Upper Buford Circle, Falcon Heights, MN, 55108, USA
2 - University Of Minnesota, 100 ECOLOGY BLDG, 1479 Gortner Ave, Saint Paul, MN, 55108, United States


Presentation Type: Poster
Session: P, Anatomy and Morphology
Location: Grand Ballroom - Exhibit Hall/Mayo Civic Center
Date: Monday, July 23rd, 2018
Time: 5:30 PM This poster will be presented at 5:30 pm. The Poster Session runs from 5:30 pm to 7:00 pm. Posters with odd poster numbers are presented at 5:30 pm, and posters with even poster numbers are presented at 6:15 pm.
Number: PAM007
Abstract ID:974
Candidate for Awards:Developmental and Structural Section best poster

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