Evidence for unexpected higher benefits of clonal integration in nutrient-rich conditions

Kód výsledku v IS VaVaI

<a href="https://www.isvavai.cz/riv?ss=detail&h=RIV%2F00216208%3A11310%2F17%3A10372870" target="_blank" >RIV/00216208:11310/17:10372870 - isvavai.cz</a>

Výsledek na webu

<a href="http://dx.doi.org/10.1007/s12224-016-9274-8" target="_blank" >http://dx.doi.org/10.1007/s12224-016-9274-8</a>

DOI - Digital Object Identifier

<a href="http://dx.doi.org/10.1007/s12224-016-9274-8" target="_blank" >10.1007/s12224-016-9274-8</a>

Jazyk výsledku

angličtina

Název v původním jazyce

Evidence for unexpected higher benefits of clonal integration in nutrient-rich conditions

Popis výsledku v původním jazyce

Physiologically integrated clonal plants cope better with spatial heterogeneity due to their ability to share resources among ramets. According to theoretical predictions and experimental evidence, such benefits of resource sharing should increase with higher patch quality of an exporting ramet and lower patch quality of an importing ramet. This study investigated the effect of spatial heterogeneity in nutrient availability on benefits of clonal integration under plausible scenarios of clonal spread, in which more developed ramets give rise to new ones. Pairs of mother and daughter ramets of a stoloniferous grass, Agrostis stolonifera, were grown in various nutrient conditions. Disconnected pairs of ramets were used as controls. Results showed considerable benefits of integration for developmentally younger daughters and no costs for older mothers in all treatments. Surprisingly, benefits of integration were more pronounced in nutrient-rich daughters, and allocation to integrated daughters decreased with increasing nutrient level of mothers. In addition, integration in general increased root-to-shoot ratio of daughters. One possible explanation of the observed patterns may be prevailing translocation of photosynthates rather than nutrients. Daughters also responded to nutrients by changes in clonal architecture. Number of stolons increased, and maximum stolon length decreased in high nutrient levels. Integration increased maximum stolon length in small daughters. The architectural responses are generally in accord with the foraging behaviour concept. Overall, our results suggest that resource translocation within a clonal fragment need not be easily predictable from a gradient of resource availability.

Název v anglickém jazyce

Evidence for unexpected higher benefits of clonal integration in nutrient-rich conditions

Popis výsledku anglicky

Physiologically integrated clonal plants cope better with spatial heterogeneity due to their ability to share resources among ramets. According to theoretical predictions and experimental evidence, such benefits of resource sharing should increase with higher patch quality of an exporting ramet and lower patch quality of an importing ramet. This study investigated the effect of spatial heterogeneity in nutrient availability on benefits of clonal integration under plausible scenarios of clonal spread, in which more developed ramets give rise to new ones. Pairs of mother and daughter ramets of a stoloniferous grass, Agrostis stolonifera, were grown in various nutrient conditions. Disconnected pairs of ramets were used as controls. Results showed considerable benefits of integration for developmentally younger daughters and no costs for older mothers in all treatments. Surprisingly, benefits of integration were more pronounced in nutrient-rich daughters, and allocation to integrated daughters decreased with increasing nutrient level of mothers. In addition, integration in general increased root-to-shoot ratio of daughters. One possible explanation of the observed patterns may be prevailing translocation of photosynthates rather than nutrients. Daughters also responded to nutrients by changes in clonal architecture. Number of stolons increased, and maximum stolon length decreased in high nutrient levels. Integration increased maximum stolon length in small daughters. The architectural responses are generally in accord with the foraging behaviour concept. Overall, our results suggest that resource translocation within a clonal fragment need not be easily predictable from a gradient of resource availability.

Druh

J_imp - Článek v periodiku v databázi Web of Science

CEP obor

—

OECD FORD obor

10611 - Plant sciences, botany

Projekt

<a href="/cs/project/GA16-19245S" target="_blank" >GA16-19245S: Reakce na disturbanci jako klíčový proces evoluce bylin a klonálních rostlin: kombinace fylogenetických a experimentálních přístupů</a><br>

Návaznosti

S - Specificky vyzkum na vysokych skolach<br>I - Institucionalni podpora na dlouhodoby koncepcni rozvoj vyzkumne organizace

Rok uplatnění

2017

Kód důvěrnosti údajů

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

Název periodika

Folia Geobotanica

ISSN

1211-9520

e-ISSN

—

Svazek periodika

52

Číslo periodika v rámci svazku

3-4

Stát vydavatele periodika

CZ - Česká republika

Počet stran výsledku

12

Strana od-do

283-294

Kód UT WoS článku

000422948100003

EID výsledku v databázi Scopus

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