Highest Occurring Vascular Plants from Ladakh Provide Wood Anatomical Evidence for a Thermal Limitation of Cell Wall Lignification

Kód výsledku v IS VaVaI

<a href="https://www.isvavai.cz/riv?ss=detail&h=RIV%2F86652079%3A_____%2F25%3A00638821" target="_blank" >RIV/86652079:_____/25:00638821 - isvavai.cz</a>

Nalezeny alternativní kódy

RIV/67985939:_____/25:00638821 RIV/60076658:12310/25:43909769 RIV/00216224:14310/25:00140611

Výsledek na webu

<a href="https://onlinelibrary.wiley.com/doi/10.1111/pce.15221?msockid=334325ca732561fb1b2b307972d4605f" target="_blank" >https://onlinelibrary.wiley.com/doi/10.1111/pce.15221?msockid=334325ca732561fb1b2b307972d4605f</a>

DOI - Digital Object Identifier

<a href="http://dx.doi.org/10.1111/pce.15221" target="_blank" >10.1111/pce.15221</a>

Jazyk výsledku

angličtina

Název v původním jazyce

Highest Occurring Vascular Plants from Ladakh Provide Wood Anatomical Evidence for a Thermal Limitation of Cell Wall Lignification

Popis výsledku v původním jazyce

As an evolutionary achievement of almost all terrestrial plants, lignin biosynthesis is essential for various mechanical and physiological processes. Possible effects of plant cell wall lignification on large‐scale vegetation distribution are, however, not yet fully understood. Here, we present double‐stained, wood anatomical stem measurements of 207 perennial herbs (Potentilla pamirica Wolf), which were collected between 5550 and 5850m asl on the north‐western Tibetan Plateau in Ladakh, India. We also measured changes in situ root zone and surface air temperatures along the sampling gradient and applied piecewise structural equation models to assess direct and indirect relationships between the age and size of plants, the degree of cell wall lignification in their stems, and the elevation at which they were growing. Based on the world's highest‐occurring vascular plants, the Pamir Cinquefoils, we demonstrate that the amount of lignin in the secondary cell walls decreases significantly with increasing elevation (r = −0.73, p < 0.01). Since elevation is a proxy for temperature, our findings suggest a thermal constrain on lignin biosynthesis at the cold range limit of woody plant growth.

Název v anglickém jazyce

Highest Occurring Vascular Plants from Ladakh Provide Wood Anatomical Evidence for a Thermal Limitation of Cell Wall Lignification

Popis výsledku anglicky

As an evolutionary achievement of almost all terrestrial plants, lignin biosynthesis is essential for various mechanical and physiological processes. Possible effects of plant cell wall lignification on large‐scale vegetation distribution are, however, not yet fully understood. Here, we present double‐stained, wood anatomical stem measurements of 207 perennial herbs (Potentilla pamirica Wolf), which were collected between 5550 and 5850m asl on the north‐western Tibetan Plateau in Ladakh, India. We also measured changes in situ root zone and surface air temperatures along the sampling gradient and applied piecewise structural equation models to assess direct and indirect relationships between the age and size of plants, the degree of cell wall lignification in their stems, and the elevation at which they were growing. Based on the world's highest‐occurring vascular plants, the Pamir Cinquefoils, we demonstrate that the amount of lignin in the secondary cell walls decreases significantly with increasing elevation (r = −0.73, p < 0.01). Since elevation is a proxy for temperature, our findings suggest a thermal constrain on lignin biosynthesis at the cold range limit of woody plant growth.

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

2025

Kód důvěrnosti údajů

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

Název periodika

Plant Cell and Environment

ISSN

0140-7791

e-ISSN

1365-3040

Svazek periodika

48

Číslo periodika v rámci svazku

FEB

Stát vydavatele periodika

US - Spojené státy americké

Počet stran výsledku

6

Strana od-do

1445-1451

Kód UT WoS článku

001341407600001

EID výsledku v databázi Scopus

2-s2.0-85207680471