Lazarus, B.E., J.H. Richards, V.P. Claassen, R.E. O’Dell, and M.A. Ferrell 2011. Species specific plant-soil interactions influence plant distribution on serpentine soils. Plant and Soil 342:327-344
Brynne E Lazarus
Biography
Education
B.S. Stanford University, Biology (2000)
M.S. University of Vermont, Natural Resources (2004)
Ph.D. University of California - Davis, Ecology (2010)
Science and Products
Date published: November 16, 2017
Status: Active Plant-Soil-Environment Laboratory (FRESC)
We produce basic and applied science needed to manage landscapes in ways that make them resistant and resilient to stressors such as wildfire, exotic plant invasions, drought, and temperature extremes. These stressors impact ecosystem productivity and functioning and pose costly risks to human health and safety in the western United States. We team with other state and federal agencies to find...
Contacts: Matthew J Germino
Attribution: Forest and Rangeland Ecosystem Science Center
Year Published: 2021
Weed-suppressive bacteria effects differ in culture compared to in soils and with or without microbial competition and separation of active ingredient
Weed-suppressive bacteria (WSB), specifically the D7 and ACK55 strains of Pseudomonas fluorescens, were previously reported to selectively inhibit growth of invasive annual grasses (IAGs) that have caused severe ecosystem degradation across much of the western US. However, recent studies show highly mixed evidence for WSB effectiveness in...
Lazarus, Brynne E.; Feris, Kevin; Germino, MatthewAttribution: Forest and Rangeland Ecosystem Science Center, Ecosystems
Year Published: 2020
Warming of alpine tundra enhances belowground production and shifts community towards resource acquisition traits
Climate warming is expected to stimulate plant growth in high‐elevation and high‐latitude ecosystems, significantly increasing aboveground net primary production (ANPP). However, the effects of simultaneous changes in temperature, snowmelt timing, and summer water availability on total net primary production (NPP)—and elucidation of both above‐...
Yang, Yan; Klein, Julia A.; Winkler, Daniel E.; Peng, Ahui; Lazarus, Brynne E.; Germino, Matthew; Suding, Katherine; Smith, Jane G.; Kueppers, Lara M.Attribution: Southwest Biological Science Center, Ecosystems
Year Published: 2020
Post-fire management-scale trials of bacterial soil amendment MB906 show inconsistent control of invasive annual grasses
Rangeland managers need tools to control invasive annual grasses, particularly following wildfire. We assessed responses of native and invasive/exotic grasses to the MB906 soil amendment containing live cultures of a purportedly weed-suppressive strain of the bacterium Pseudomonas fluorescens (“WSB”). MB906 was applied alone and in...
Lazarus, Brynne E.; Germino, Matthew; Brabec, Martha; Peterson, Logan; Walker, Ryan N; Moser, AnnAttribution: Forest and Rangeland Ecosystem Science Center, Ecosystems
Year Published: 2020
Weed-suppressive bacteria have no effect on exotic or native plants in sagebrush-steppe
Approaches and techniques for control of exotic annual grasses are a high priority in rangelands including sagebrush steppe. Strains of the soil bacterium Pseudomonas fluorescens have been proposed to be selectively pathogenic to multiple species of exotic annual grasses (“Pf,” weed-suppressive bacteria, “WSB”). However, defensible tests...
Germino, Matthew; Lazarus, Brynne E.Attribution: Forest and Rangeland Ecosystem Science Center, Ecosystems
Year Published: 2019
Weed-suppressive bacteria fail to control bromus tectorum under field conditions
The exotic winter annual grass Bromus tectorum L. (downy brome or cheatgrass) infests millions of hectares of western rangelands. Weed-suppressive bacteria (ACK55 and D7 strains of Pseudomonas fluorescens Migula 1895) have been shown to reduce B. tectorum populations in eastern Washington. Unfortunately, outside...
Reinhart, Kurt O; Carlson, Chris H; Feris, Kevin P; Germino, Matthew; Jandreau, Clancy J; Lazarus, Brynne E.; Mangold, Jane M.; Pellatz, Dave W; Ramsey, Philip; Rinella, Matthew J.; Valliant, MorganAttribution: Forest and Rangeland Ecosystem Science Center, Ecosystems
Year Published: 2019
An experimental test of weed-suppressive bacteria effectiveness in rangelands in southwestern Idaho, 2016–18
Approaches and techniques for control of exotic annual grasses are a high priority in sagebrush-steppe and other rangelands. Strains of the soil bacterium Pseudomonas fluorescens (Pf) have been proposed to be selectively pathogenic to multiple species of exotic annual grasses with effects evident by the second year, and with no effect on native or...
Lazarus, Brynne E.; Germino, Matthew J.Attribution: Forest and Rangeland Ecosystem Science Center, Ecosystems
View Citation
Lazarus, B.E., and Germino, M.J., 2019, An experimental test of weed-suppressive bacteria effectiveness in rangelands in southwestern Idaho, 2016–18: U.S. Geological Survey Open-File Report 2019-1050, 19 p., https://doi.org/10.3133/ofr20191050.
Year Published: 2018
Growth strategies and threshold responses to water deficit modulate effects of warming on tree seedlings from forest to alpine
1.Predictions of upslope range shifts for tree species with warming are based on assumptions of moisture stress at lower elevation limits and low temperature stress at high elevation limits. However, recent studies have shown that warming can reduce tree seedling establishment across the entire gradient from subalpine forest to alpine via moisture...
Lazarus, Brynne E.; Castanha, Cristina; Germino, Matthew J.; Kueppers, Lara M.; Moyes, Andrew B.Attribution: Forest and Rangeland Ecosystem Science Center, Ecosystems
View Citation
Lazarus, B. E., Castanha, C., Germino, M. J., Kueppers, L. M. and Moyes, A. B. (), Growth strategies and threshold responses to water deficit modulate effects of warming on tree seedlings from forest to alpine. J Ecol. Accepted Author Manuscript. doi:10.1111/1365-2745.12837
Year Published: 2017
Methodological considerations regarding online extraction of water from soils for stable isotope determination
No abstract available.
Lazarus, Brynne E.; Germino, Matthew J.Attribution: Forest and Rangeland Ecosystem Science Center, Ecosystems
View Citation
Lazarus BE, Germino MJ. Methodological considerations regarding online extraction of water from soils for stable isotope determination. Rapid Commun Mass Spectrom. 2017;31:1677-1680.
Year Published: 2016
Online induction heating for determination of isotope composition of woody stem water with laser spectrometry: A methods assessment
Application of stable isotopes of water to studies of plant–soil interactions often requires a substantial preparatory step of extracting water from samples without fractionating isotopes. Online heating is an emerging approach for this need, but is relatively untested and major questions of how to best deliver standards and assess...
Lazarus, Brynne E.; Germino, Matthew J.; Vander Veen, Jessica L.Attribution: Forest and Rangeland Ecosystem Science Center, Ecosystems
View Citation
Brynne E. Lazarus, Matthew J. Germino & Jessica L. Vander Veen (2016): Online induction heating for determination of isotope composition of woody stem water with laser spectrometry: A methods assessment, Isotopes in Environmental and Health Studies, DOI: 10.1080/10256016.2016.1141205
Pre-USGS Publications
Lazarus, B.E., J.H. Richards, P.E. Gordon, L.R. Oki, and C.S. Barnes 2011. Plasticity tradeoffs in salt tolerance mechanisms among desert Distichlis spicata genotypes. Functional Plant Biology 38:187-198
Schaberg, P.G., B.E. Lazarus, G.J. Hawley, J.M. Halman, C.H. Borer, and C.F. Hansen 2011. Assessment of weather-associated causes of red spruce winter injury and consequences to aboveground carbon sequestration. Canadian Journal of Forest Research 41:359-369
Lazarus, B.E., P.G. Schaberg, G.J. Hawley, D.H. DeHayes 2006. Landscape scale spatial patterns of winter injury to red spruce foliage in a year of heavy region-wide injury. Canadian Journal of Forest Research 36: 142-152
Lazarus, B.E., P.G. Schaberg, D.H. DeHayes, G.J. Hawley 2004. Severe red spruce winter injury in 2003 creates unusual ecological event in the northeastern United States. Canadian Journal of Forest Research 34: 1784-1788
Date published: September 18, 2020
Weed-Suppressive Bacteria Effects Differ in Culture Compared to in Soils
Weed-suppressive bacteria (WSB), specifically the D7 and ACK55 strains of Pseudomonas fluorescens, were previously reported to selectively inhibit growth of invasive annual grasses. However, recent studies show highly mixed evidence for WSB effectiveness in field settings.
Attribution: Forest and Rangeland Ecosystem Science Center
Date published: September 11, 2020
Bacterial Soil Amendment MB906 Shows Inconsistent Control of Invasive Annual Grasses
In 2016, land managers began using a soil amendment called MB906, a weed-suppressive bacteria, to control invasive annual grasses, yet the success of MB906 is inconclusive.
Attribution: Forest and Rangeland Ecosystem Science Center
Date published: March 10, 2020
Intraspecific Variation in Surface Water Uptake in a Perennial Desert Shrub
Variability in root architecture is one source of plant trait diversification that affects how water is distributed among plants.
Attribution: Forest and Rangeland Ecosystem Science Center
Date published: December 12, 2019
Weed-Suppressive Bacteria have no Effect on Exotic or Native Plants in Sagebrush Steppe
Approaches and techniques for controlling exotic annual grasses are a high priority in rangelands including sagebrush steppe.
Attribution: Forest and Rangeland Ecosystem Science Center
Date published: July 19, 2019
Cold Hardiness of Big Sagebrush May be Maladaptive in a Warmer Climate
Physiological responses to temperature extremes are considered strong drivers of plant species’ resilience to climate variability.
Attribution: Forest and Rangeland Ecosystem Science Center