NDLI: Root-exudate flux variations among four co-existing canopy species in a temperate forest, Japan

Content Provider	Springer Nature Link
Author	Sun, Lijuan Kominami, Yuji Yoshimura, Kenichi Kitayama, Kanehiro
Copyright Year	2017
Abstract	Plants allocate carbon to root exudates to mine nitrogen (N) from soil organic matter (SOM). Little is known about how the root-exudation rate varies among co-existing woody species. We conducted an in situ experiment in a warm temperate forest on two dominant species, Quercus serrata and Ilex pedunculosa, and two of their congeneric species, Quercus glauca and Ilex macropoda, respectively. We hypothesized that the root-exudation rate varies among these species because of their distinct functional traits and N demands. Root-exudation rates were measured using a non-soil culture method during the growing season from June 2013 to May 2014. We also measured foliar N concentrations and the activities of N-degrading enzymes in the rhizosphere soils. The annual demand for N was calculated from the growth rate and allometric equations for biomass. The root-exudation rates of Q. serrata and I. macropoda were consistently greater than those of their congeneric evergreen species on root-length, root-weight, and individual-tree bases. The variations of the annual N demand of these species mirrored this pattern. Within a species, root-exudation rates correlated positively to leaf N contents, suggesting a physiological linkage between photosynthetic capacities and belowground carbon allocation. Root-exudation rates also correlated positively to the activities of polyphenol oxidase, an enzyme that decomposes N from recalcitrant SOM. Our results suggest that the variations of the root-exudation among co-existing species relate to their functional traits and demand for N.
Starting Page	331
Ending Page	339
Page Count	9
File Format	PDF
ISSN	09123814
Journal	Ecological Research
Volume Number	32
Issue Number	3
e-ISSN	14401703
Language	English
Publisher	Springer Japan
Publisher Date	2017-02-17
Publisher Place	Tokyo
Access Restriction	One Nation One Subscription (ONOS)
Subject Keyword	Fine root Nitrogen-degrading enzyme activity Nitrogen mining Plant–soil interaction Rhizosphere effect Ecology Plant Sciences Zoology Evolutionary Biology Behavioral Sciences Forestry
Content Type	Text
Resource Type	Article
Subject	Ecology, Evolution, Behavior and Systematics

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

Fine root mass in relation to soil N supply in a cool temperate forest

Variations of soil enzyme activities in a temperate forest soil

Winter CO$_{2}$ flux from soil and snow surfaces in a cool-temperate deciduous forest, Japan

Effects of rainfall events on soil CO$_{2}$ flux in a cool temperate deciduous broad-leaved forest

The effect of canopy structure on soil respiration in an old-growth beech-oak forest in central Japan

Very fine roots respond to soil depth: biomass allocation, morphology, and physiology in a broad-leaved temperate forest

Fine root biomass and morphology in a temperate forest are influenced more by canopy water addition than by canopy nitrogen addition

Phenology of leaf morphological, photosynthetic, and nitrogen use characteristics of canopy trees in a cool-temperate deciduous broadleaf forest at Takayama, central Japan

Fine root biomass and morphology in a temperate forest are influenced more by the nitrogen treatment approach than the rate

Root-exudate flux variations among four co-existing canopy species in a temperate forest, Japan

Similar Documents

Fine root mass in relation to soil N supply in a cool temperate forest

Variations of soil enzyme activities in a temperate forest soil

Winter CO$_{2}$ flux from soil and snow surfaces in a cool-temperate deciduous forest, Japan

Effects of rainfall events on soil CO$_{2}$ flux in a cool temperate deciduous broad-leaved forest

The effect of canopy structure on soil respiration in an old-growth beech-oak forest in central Japan

Very fine roots respond to soil depth: biomass allocation, morphology, and physiology in a broad-leaved temperate forest

Fine root biomass and morphology in a temperate forest are influenced more by canopy water addition than by canopy nitrogen addition

Phenology of leaf morphological, photosynthetic, and nitrogen use characteristics of canopy trees in a cool-temperate deciduous broadleaf forest at Takayama, central Japan

Fine root biomass and morphology in a temperate forest are influenced more by the nitrogen treatment approach than the rate

Root-exudate flux variations among four co-existing canopy species in a temperate forest, Japan