Species- and compound-specific dynamics of nonstructural carbohydrates toward the world's upper distribution of vascular plants

Kód výsledku v IS VaVaI

<a href="https://www.isvavai.cz/riv?ss=detail&h=RIV%2F60077344%3A_____%2F22%3A00560037" target="_blank" >RIV/60077344:_____/22:00560037 - isvavai.cz</a>

Nalezeny alternativní kódy

RIV/67985939:_____/22:00561408 RIV/60076658:12310/22:43904765 RIV/60460709:41320/22:94216

Výsledek na webu

<a href="https://doi.org/10.1016/j.envexpbot.2022.104985" target="_blank" >https://doi.org/10.1016/j.envexpbot.2022.104985</a>

DOI - Digital Object Identifier

<a href="http://dx.doi.org/10.1016/j.envexpbot.2022.104985" target="_blank" >10.1016/j.envexpbot.2022.104985</a>

Jazyk výsledku

angličtina

Název v původním jazyce

Species- and compound-specific dynamics of nonstructural carbohydrates toward the world's upper distribution of vascular plants

Popis výsledku v původním jazyce

Nonstructural carbohydrates (NSC) are the crucial components of plant metabolism, and NSC dynamics provide essential information on plant carbon balance, which usually changes toward the distribution limits of plants. NSC have been extensively used to study the elevational limit in trees all around the world. For alpine herbs, which occupy vast areas beyond treelines, such investigations are still lacking. To assess whether carbon supply is a limiting factor for the upper distribution limits of alpine herbs, we studied NSC in belowground organs of 11 perennial species across their 4500-6000 m elevation ranges in the Western Himalayas at the peak of the growing season. We found a general elevational increase in total NSC within and across species. Studied alpine plants contain simple sugars and fructans as the main NSC and less so starch. Species- and compound-specific elevation patterns were found for different NSC compounds, suggesting a regulatory role of NSC in alpine herbs acclimation rather than a general accumulation of all NSC resulting from growth limitation. Similar to studies on treeline NSC dynamics, our study shows that reduced carbon supply is an unlikely cause of high-elevation range limits in herbs. Yet, the elevational NSC dynamics in alpine herbs still needs further exploration, with an emphasis on different compounds and their function in acclimatory metabolic processes, to clearly identify the key mechanisms determining plant range limits.

Název v anglickém jazyce

Species- and compound-specific dynamics of nonstructural carbohydrates toward the world's upper distribution of vascular plants

Popis výsledku anglicky

Nonstructural carbohydrates (NSC) are the crucial components of plant metabolism, and NSC dynamics provide essential information on plant carbon balance, which usually changes toward the distribution limits of plants. NSC have been extensively used to study the elevational limit in trees all around the world. For alpine herbs, which occupy vast areas beyond treelines, such investigations are still lacking. To assess whether carbon supply is a limiting factor for the upper distribution limits of alpine herbs, we studied NSC in belowground organs of 11 perennial species across their 4500-6000 m elevation ranges in the Western Himalayas at the peak of the growing season. We found a general elevational increase in total NSC within and across species. Studied alpine plants contain simple sugars and fructans as the main NSC and less so starch. Species- and compound-specific elevation patterns were found for different NSC compounds, suggesting a regulatory role of NSC in alpine herbs acclimation rather than a general accumulation of all NSC resulting from growth limitation. Similar to studies on treeline NSC dynamics, our study shows that reduced carbon supply is an unlikely cause of high-elevation range limits in herbs. Yet, the elevational NSC dynamics in alpine herbs still needs further exploration, with an emphasis on different compounds and their function in acclimatory metabolic processes, to clearly identify the key mechanisms determining plant range limits.

Druh

J_imp - Článek v periodiku v databázi Web of Science

CEP obor

—

OECD FORD obor

10618 - Ecology

Projekt

Výsledek vznikl pri realizaci vícero projektů. Více informací v záložce Projekty.

Návaznosti

I - Institucionalni podpora na dlouhodoby koncepcni rozvoj vyzkumne organizace

Rok uplatnění

2022

Kód důvěrnosti údajů

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

Název periodika

Environmental and Experimental Botany

ISSN

0098-8472

e-ISSN

1873-7307

Svazek periodika

201

Číslo periodika v rámci svazku

Sep

Stát vydavatele periodika

NL - Nizozemsko

Počet stran výsledku

11

Strana od-do

104985

Kód UT WoS článku

000831010700009

EID výsledku v databázi Scopus

2-s2.0-85134405064