| Abstract Detail
Recent Topics Posters Vanden Heuvel , Brian David [1], Holling, Cheryl [2], Kinney, Chad [3]. The Effect of Vesicular Arbuscular Mycorrhizal Fungi on the Uptake of the Human Pharmaceutical Carbamazepine from Fortified and Biosolids-Amended Soils. Municipal wastewater treatment end products, reclaimed wastewater and biosolids, harbor anthropogenic organic contaminants, including the human pharmaceutical carbamazepine (CBZ), and are land applied increasingly for irrigation and soil amendments to enhance vegetation growth. The literature has established plant uptake of CBZ from hydroponic, soil irrigation, and biosolids amended systems where it is potentially available to higher trophic levels. The novel question that we asked was what role the rhizosphere microorganism and common plant root endosymbiote vesicular arbuscular mycorrhiza (VAM) might play in the uptake of CBZ from various soil systems. We used a soil-based pot experiment consisting of six treatments (Low CBZ +/- BS, +/- VAM and High CBZ +/- VAM) and two controls. The high and low CBZ groups modeled CBZ load into the environment at agronomic rates for reclamation areas and agricultural lands respectively. We quantified CBZ concentrations in M. sativa tissues using isotope dilution liquid chromatography-mass spectrometry and used a conservative method to estimate percent colonization of M. sativa roots by VAM. We detected CBZ in aerial tissues of M. sativa in higher concentrations when VAM did not colonize the plant roots (p < 0.05 for low CBZ applications). We found evidence suggesting VAM colonization inhibits uptake and translocation of the human pharmaceutical CBZ from the rhizosphere of M. sativa to aerial structures. We suggest possible mechanisms that may be important in agriculture and reclamation.
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1 - Colorado State University - Pueblo, Biology, 2200 Bonforte Blvd, Pueblo, Colorado, 81001, United States
2 - Colorado State University - Pueblo, Biology, 2200 Bonforte Blvd, Pueblo, CO, 81001
3 - Colorado State University - Pueblo, Chemistry, 2200 Bonforte Blvd, Pueblo, CO, 81001, United States
Keywords:
none specified
Presentation Type: Recent Topics Poster
Session: P
Location: /
Date: Monday, July 28th, 2014
Time: 5:30 PM
Number: PRT002
Abstract ID:1239
Candidate for Awards:None |
