[Ccb_faculty] Fwd: [Envisci-all] ENSC Seminar on Wed, Apr 6 @3:00 PM

[Peter Homyak]

On Apr 1, 2022, 6:08 AM, at 6:08 AM, Daniel Hirmas <daniel.hirmas at ucr.edu> wrote:
>*Speaker:* Dr. Wendy H. Yang, School of Integrative Biology, University
>
>of Illinois Urbana-Champaign
>*Time/Location:* Wednesday, April 6, 2022 @3:00 PM - 3:50 PM, MSE 103
>
>You're invited!
>
>*Title: *Opening the microbial black box to understand controls on soil
>
>biogeochemical processes
>
>*Abstract:* Microbes mediate biogeochemical cycling of carbon and 
>nutrients that underlie ecosystem function, yet the explicit role of 
>microbes is often not considered in biogeochemical studies. I will 
>present four vignettes that demonstrate how characterizing soil 
>microbial community composition and function can allow us to gain a 
>better understanding of controls on soil biogeochemical processes. 
>First, I will show how microtopographic variation in soil microbial 
>community composition could explain spatial heterogeneity in soil 
>greenhouse gas emissions across seemingly homogenous agricultural 
>fields. Second, I will present how the activity of different 
>microorganisms harboring the nrfA functional gene for dissimilatory 
>nitrate reduction to ammonium, an important ecosystem nitrogen
>retention 
>process traditionally thought to be restricted to anoxic conditions, 
>could contribute to the occurrence of DNRA under oxic conditions.
>Third, 
>I will explore the ecological implications of hypothesized 
>non-respiratory functions of the nitrous oxide reductase enzyme, which 
>has historically been associated with the anaerobic respiratory process
>
>of denitrification. Fourth, I will share evidence of how the
>mutualistic 
>relationship between ectomycorrhizal fungi and their host trees can
>vary 
>depending on environmental context, resulting in different drivers of 
>ectomycorrhizal biogeochemical syndromes. Together, these studies make
>a 
>strong case for opening the microbial black box to elucidate mechanisms
>
>leading to variation in soil biogeochemical processes within and across
>
>ecosystems.
>
>[flyer attached]
>
>View upcoming seminars: https://envisci.ucr.edu/news-seminars
>
>
>Daniel Hirmas
>/Associate Professor of Pedology and Graduate Advisor for Continuing 
>Students/
>Department of Environmental Sciences
>University of California - Riverside
>A: 	2228A Geology Building
>	Riverside, CA 92521-0424
>P: 	(951) 827-2019
>E: 	daniel.hirmas at ucr.edu
>
>
>------------------------------------------------------------------------
>
>_______________________________________________
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>Envisci-all at lists.ucr.edu
>https://lists.ucr.edu/mailman/listinfo/envisci-all
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