NDLI: Competition for Nutrients and Optimal Root Allocation

Content Provider	Springer Nature Link
Author	Craine, Joseph M.
Copyright Year	2006
Abstract	The allocation of resources among roots and shoots represents the largest flux of resources within a plant and therefore should have been selected to maximize benefits to plants. Yet, it is unclear why some species like temperate grasses have such high root length density (RLD). Either the slow rate of diffusion of inorganic N in soils or interplant competition could explain the high RLD of temperate grasses. Using a fine-scale model of nutrient dynamics in the soil and plant growth, a cost–benefit approach was used to assess optimal allocation rates for plants that accounted for value of both carbon and nitrogen. In the absence of interplant competition, resource benefits are maximized with very little root length except in extremely dry soils for ammonium. In the presence of a competitor, optimal allocation of N to roots is much greater and increases as ability of competitors to produce root length increase. Competition for inorganic nitrogen generates a classic aspect of the tragedy of the commons, the “race for fish”, where plants must allocate more resources to acquisition of the limiting resource than is optimal for plants in the absence of competition. As such, nutrient competition needs to be directly addressed when understanding plant- and ecosystem-level resource fluxes as well as the evolution of root systems.
Starting Page	171
Ending Page	185
Page Count	15
File Format	PDF
ISSN	0032079X
Journal	Plant and Soil
Volume Number	285
Issue Number	1-2
e-ISSN	15735036
Language	English
Publisher	Kluwer Academic Publishers
Publisher Date	2006-05-02
Publisher Place	Dordrecht
Access Restriction	One Nation One Subscription (ONOS)
Subject Keyword	Allocation Co-limitation Competition Nitrogen Roots SERMUN
Content Type	Text
Resource Type	Article
Subject	Soil Science Plant Science

Sl.	Authority	Responsibilities	Communication Details
1	Ministry of Education (GoI), Department of Higher Education	Sanctioning Authority	https://www.education.gov.in/ict-initiatives
2	Indian Institute of Technology Kharagpur	Host Institute of the Project: The host institute of the project is responsible for providing infrastructure support and hosting the project	https://www.iitkgp.ac.in
3	National Digital Library of India Office, Indian Institute of Technology Kharagpur	The administrative and infrastructural headquarters of the project	Dr. B. Sutradhar bsutra@ndl.gov.in
4	Project PI / Joint PI	Principal Investigator and Joint Principal Investigators of the project	Dr. B. Sutradhar bsutra@ndl.gov.in Prof. Saswat Chakrabarti will be added soon
5	Website/Portal (Helpdesk)	Queries regarding NDLI and its services	support@ndl.gov.in
6	Contents and Copyright Issues	Queries related to content curation and copyright issues	content@ndl.gov.in
7	National Digital Library of India Club (NDLI Club)	Queries related to NDLI Club formation, support, user awareness program, seminar/symposium, collaboration, social media, promotion, and outreach	clubsupport@ndl.gov.in
8	Digital Preservation Centre (DPC)	Assistance with digitizing and archiving copyright-free printed books	dpc@ndl.gov.in
9	IDR Setup or Support	Queries related to establishment and support of Institutional Digital Repository (IDR) and IDR workshops	idr@ndl.gov.in

Competition for nitrogen between Pinus sylvestris and ectomycorrhizal fungi generates potential for negative feedback under elevated CO$_{2}$

Root order- and root age-dependent response of two poplar species to belowground competition

Influence of soil inorganic nitrogen and root diameter size on legume cover crop root decomposition and nitrogen release

Spatial and Temporal Variation of Roots, Arbuscular Mycorrhizal Fungi, and Plant and Soil Nutrients in a Mature Pinot Noir (Vitis vinifera L.) Vineyard in Oregon, USA

Optimal root proliferation strategies: the roles of nutrient heterogeneity, competition and mycorrhizal networks

Effects of wood ash and nitrogen fertilization on fine root biomass and soil and foliage nutrients in a Norway spruce stand in Finland

Nitrogen ion form and spatio-temporal variation in root distribution mediate nitrogen effects on lifespan of ectomycorrhizal roots

Dark septate root endophytic fungi increase growth of Scots pine seedlings under elevated CO$_{2}$ through enhanced nitrogen use efficiency

Competition for Nutrients and Optimal Root Allocation

Competition for Nutrients and Optimal Root Allocation

Similar Documents

Competition for nitrogen between Pinus sylvestris and ectomycorrhizal fungi generates potential for negative feedback under elevated CO$_{2}$

Root order- and root age-dependent response of two poplar species to belowground competition

Influence of soil inorganic nitrogen and root diameter size on legume cover crop root decomposition and nitrogen release

Spatial and Temporal Variation of Roots, Arbuscular Mycorrhizal Fungi, and Plant and Soil Nutrients in a Mature Pinot Noir (Vitis vinifera L.) Vineyard in Oregon, USA

Optimal root proliferation strategies: the roles of nutrient heterogeneity, competition and mycorrhizal networks

Effects of wood ash and nitrogen fertilization on fine root biomass and soil and foliage nutrients in a Norway spruce stand in Finland

Nitrogen ion form and spatio-temporal variation in root distribution mediate nitrogen effects on lifespan of ectomycorrhizal roots

Dark septate root endophytic fungi increase growth of Scots pine seedlings under elevated CO$_{2}$ through enhanced nitrogen use efficiency

Competition for Nutrients and Optimal Root Allocation

Competition for Nutrients and Optimal Root Allocation