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United States Department of Agriculture

Agricultural Research Service

Research Project: TECHNOLOGIES FOR MANAGMENT AND RESTORATION OF BUREAU OF LAND MANAGEMENT ADMINISTERED RANGELANDS IN NEW MEXICO

Location: Range Management Research

Title: Can shrub microbiomes influence plant adaptation across ecological gradients?

Authors
item Lucero, Mary
item Unc, Adrian -
item Nalim, Ameena -
item Khresat, Sa'eb -

Submitted to: Wildland Shrub Symposium Proceedings
Publication Type: Abstract Only
Publication Acceptance Date: March 15, 2010
Publication Date: N/A

Technical Abstract: Cryptic symbiotic microbes influence host adaptation by improving nutrient uptake or stress tolerance. Current technologies for increasing plant productivity, whether for food and fuel production or for restoration and remediation, often utilize approaches that bypass, rather than leverage, microbial influences. Such technologies are insufficient for reversing desertification and increasing vegetative production to meet the increased demands of expanding populations and changing climates. Improved understanding of host-microbe interactions across ecological gradients may facilitate technology development that harnesses microbial power to augment vegetative production. We have identified numerous seed borne bacterial and fungal taxa believed to be vertically transmitted in Atriplex species, and have demonstrated potential for these microbes to increase plant production. Plans are underway to explore these and other taxa across temporal (evolutionary) and spatial gradients to learn how these microbes influence host plant adaptation to extreme or changing habitats. Findings are expected to magnify existing understanding of microbial interactions in plant ecosystems, providing insights relevant to restoration, carbon sequestration, biofuel, and agricultural technology development.

Last Modified: 9/29/2014
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