The direction of carbon and nitrogen fluxes between ramets in Agrostis stolonifera changes during ontogeny under simulated competition for light

Result code in IS VaVaI

<a href="https://www.isvavai.cz/riv?ss=detail&h=RIV%2F00216208%3A11310%2F18%3A10385791" target="_blank" >RIV/00216208:11310/18:10385791 - isvavai.cz</a>

Alternative codes found

RIV/61388971:_____/18:00489327

Result on the web

<a href="https://doi.org/10.1093/jxb/ery068" target="_blank" >https://doi.org/10.1093/jxb/ery068</a>

DOI - Digital Object Identifier

<a href="http://dx.doi.org/10.1093/jxb/ery068" target="_blank" >10.1093/jxb/ery068</a>

Result language

angličtina

Original language name

The direction of carbon and nitrogen fluxes between ramets in Agrostis stolonifera changes during ontogeny under simulated competition for light

Original language description

Resource sharing is universal among connected ramets of clonal plants and is driven both by the developmental status of the ramets and the resource gradients. Above-ground competition forms spatial light gradients, but the role of resource sharing in such competition is unclear. We examined translocation of resources between mother and daughter ramets of Agrostis stolonifera under light heterogeneity throughout ramet ontogeny. We labelled ramets with C-13 and N-15 to estimate the bidirectional translocation of resources at three developmental stages of the daughters. In addition, we compared the final biomass of integrated and severed ramets in order to estimate the effect of integration on growth. Young developing daughters were supported by carbon, whereas nitrogen was only translocated towards daughters at the beginning of rooting, regardless of the light conditions. Shading of mothers was a major determinant of resource translocation between developed ramets, with carbon being preferentially moved to daughters from shaded mothers while nitrogen translocation was limited from daughters to shaded mothers. Surprisingly, the absolute amounts of translocated resources did not decline during development. Growth of daughters was enhanced by integration regardless of the shading. Overall, A. stolonifera maximizes the resource translocation pattern in order to enable it to spread from unfavourable habitats, rather than compensating for light heterogeneity among ramets.

Czech name

—

Czech description

—

Type

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

CEP classification

—

OECD FORD branch

10611 - Plant sciences, botany

Project

<a href="/en/project/GA16-19245S" target="_blank" >GA16-19245S: Response to disturbance as the key process in evolution of herbaceous and clonal growth forms: linking phylogenetic and experimental approaches</a><br>

Continuities

P - Projekt vyzkumu a vyvoje financovany z verejnych zdroju (s odkazem do CEP)

Publication year

2018

Confidentiality

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

Name of the periodical

Journal of Experimental Botany

ISSN

0022-0957

e-ISSN

—

Volume of the periodical

69

Issue of the periodical within the volume

8

Country of publishing house

GB - UNITED KINGDOM

Number of pages

10

Pages from-to

2149-2158

UT code for WoS article

000430092100027

EID of the result in the Scopus database

2-s2.0-85045149416