Species effects and seasonal trends on plant efflux quantity and quality in a spruce swamp forest

Result code in IS VaVaI

<a href="https://www.isvavai.cz/riv?ss=detail&h=RIV%2F60076658%3A12310%2F18%3A43897388" target="_blank" >RIV/60076658:12310/18:43897388 - isvavai.cz</a>

Result on the web

<a href="https://link.springer.com/article/10.1007%2Fs11104-018-3610-0" target="_blank" >https://link.springer.com/article/10.1007%2Fs11104-018-3610-0</a>

DOI - Digital Object Identifier

<a href="http://dx.doi.org/10.1007/s11104-018-3610-0" target="_blank" >10.1007/s11104-018-3610-0</a>

Result language

angličtina

Original language name

Species effects and seasonal trends on plant efflux quantity and quality in a spruce swamp forest

Original language description

Aims We aimed to compare seasonal exudate quality and quantity between Sphagnum moss, Eriophorum vaginatum (graminoid) and Vaccinium myrtillus (ericoid shrub). Methods Exudates were collected in May, July and September 2014 using a culture-based method and characterized by total organic carbon (TOC) and nitrogen (TN) contents with exudation fluxes expressed on a root-mass basis. Organic acids, sugars and amino acids in the exudates were identified by ion exchange chromatography. C and N exudate fluxes, in situ exudation fluxes and exudate contribution to soil dissolved organic matter (DOM) were estimated. Differences in exudate biodegradability were assessed by C-13 pulse labeling. Results E. vaginatum had the largest exudation fluxes, Sphagnum the lowest, and V. myrtillus intermediate, being the greatest in July. All species mostly exuded organic acids except Sphagnum in September when sugars (allose, xylose) and amino acids (cystine) dominated. Sphagnum exudates were more C-rich and less degradable than the vascular species exudates, which released both organic and inorganic N forms. E. vaginatum exudates were richer in amino acids and citrate especially in July. Exudates contributed up to 20% to soil DOM. Conclusions Plant species composition greatly affects exudate quantity, quality and timing. Plant exudates represent considerable contributions to soil DOM.

Czech name

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Czech description

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Type

J_imp - Article in a specialist periodical, which is included in the Web of Science database

CEP classification

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OECD FORD branch

40104 - Soil science

Project

<a href="/en/project/GA13-17398S" target="_blank" >GA13-17398S: Functional diversity of soil microorganisms in spruce swamp forest and its effect on soil DOM</a><br>

Continuities

I - Institucionalni podpora na dlouhodoby koncepcni rozvoj vyzkumne organizace

Publication year

2018

Confidentiality

S - Úplné a pravdivé údaje o projektu nepodléhají ochraně podle zvláštních právních předpisů

Name of the periodical

Plant and Soil

ISSN

0032-079X

e-ISSN

—

Volume of the periodical

426

Issue of the periodical within the volume

1-2

Country of publishing house

NL - THE KINGDOM OF THE NETHERLANDS

Number of pages

18

Pages from-to

179-196

UT code for WoS article

000431962400012

EID of the result in the Scopus database

2-s2.0-85044027026