Changes in the quality of marcescent and shed senescent leaves during the dormant season

Kód výsledku v IS VaVaI

<a href="https://www.isvavai.cz/riv?ss=detail&h=RIV%2F60077344%3A_____%2F22%3A00562645" target="_blank" >RIV/60077344:_____/22:00562645 - isvavai.cz</a>

Nalezeny alternativní kódy

RIV/00216208:11310/22:10454438

Výsledek na webu

<a href="https://link.springer.com/article/10.1007/s11104-022-05341-4" target="_blank" >https://link.springer.com/article/10.1007/s11104-022-05341-4</a>

DOI - Digital Object Identifier

<a href="http://dx.doi.org/10.1007/s11104-022-05341-4" target="_blank" >10.1007/s11104-022-05341-4</a>

Jazyk výsledku

angličtina

Název v původním jazyce

Changes in the quality of marcescent and shed senescent leaves during the dormant season

Popis výsledku v původním jazyce

Background and aims Marcescence, the phenomenon in which plants hold their leaves after senescence, is common in nature. To date, the ecological relevance of marcescent leaves has been highlighted predominantly in arid ecosystems, where the photodegradation of recalcitrant compounds in such leaves facilitates their subsequent decomposition once shed. Marcescence, however, is widespread also in temperate ecosystems, where photodegradation is expected to be less pronounced, while other factors such as leaching or limited access of decomposers may be more important. Methods To provide insights into the impact of marcescence on leaf chemistry and potential consequences for decomposition and nutrient cycling in temperate ecosystems, we collected marcescent and shed senescent leaves of the tree genera Quercus L. and Fagus L. throughout two consecutive dormant seasons. We analysed these leaves for carbon and nitrogen, extracted lignin and water-extractable organic matter, and performed Fourier-transform infrared spectroscopic analyses. Results Our results indicate that marcescent leaves were richer in nitrogen, perhaps, due to a dominance of abiotic processes acting on these leaves (e.g., leaching of carbon), and had decreased lignin contents, likely due to photodegradation, which could subsequently release easily utilisable compounds via breakdown of lignocellulose complexes. Conclusion Marcescent leaves may be more bioavailable as compared to leaves directly shed after senescence, with potential consequences for nutrient and carbon cycling in temperate ecosystems.

Název v anglickém jazyce

Changes in the quality of marcescent and shed senescent leaves during the dormant season

Popis výsledku anglicky

Background and aims Marcescence, the phenomenon in which plants hold their leaves after senescence, is common in nature. To date, the ecological relevance of marcescent leaves has been highlighted predominantly in arid ecosystems, where the photodegradation of recalcitrant compounds in such leaves facilitates their subsequent decomposition once shed. Marcescence, however, is widespread also in temperate ecosystems, where photodegradation is expected to be less pronounced, while other factors such as leaching or limited access of decomposers may be more important. Methods To provide insights into the impact of marcescence on leaf chemistry and potential consequences for decomposition and nutrient cycling in temperate ecosystems, we collected marcescent and shed senescent leaves of the tree genera Quercus L. and Fagus L. throughout two consecutive dormant seasons. We analysed these leaves for carbon and nitrogen, extracted lignin and water-extractable organic matter, and performed Fourier-transform infrared spectroscopic analyses. Results Our results indicate that marcescent leaves were richer in nitrogen, perhaps, due to a dominance of abiotic processes acting on these leaves (e.g., leaching of carbon), and had decreased lignin contents, likely due to photodegradation, which could subsequently release easily utilisable compounds via breakdown of lignocellulose complexes. Conclusion Marcescent leaves may be more bioavailable as compared to leaves directly shed after senescence, with potential consequences for nutrient and carbon cycling in temperate ecosystems.

Druh

J_imp - Článek v periodiku v databázi Web of Science

CEP obor

—

OECD FORD obor

10611 - Plant sciences, botany

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

Plant and Soil

ISSN

0032-079X

e-ISSN

1573-5036

Svazek periodika

474

Číslo periodika v rámci svazku

1-2

Stát vydavatele periodika

NL - Nizozemsko

Počet stran výsledku

10

Strana od-do

373-382

Kód UT WoS článku

000756320900001

EID výsledku v databázi Scopus

2-s2.0-85124837988