Response of linden tree to nocturnal simulation of daylight conditions

Kód výsledku v IS VaVaI

<a href="https://www.isvavai.cz/riv?ss=detail&h=RIV%2F62156489%3A43410%2F21%3A43919729" target="_blank" >RIV/62156489:43410/21:43919729 - isvavai.cz</a>

Výsledek na webu

<a href="https://doi.org/10.1016/j.envexpbot.2021.104477" target="_blank" >https://doi.org/10.1016/j.envexpbot.2021.104477</a>

DOI - Digital Object Identifier

<a href="http://dx.doi.org/10.1016/j.envexpbot.2021.104477" target="_blank" >10.1016/j.envexpbot.2021.104477</a>

Jazyk výsledku

angličtina

Název v původním jazyce

Response of linden tree to nocturnal simulation of daylight conditions

Popis výsledku v původním jazyce

Although the importance of the internal clock for plant development and fitness was extensively studied in the last few decades, the majority of work was conducted in laboratory conditions using some small plants as model species. The objective of this study was to determine the response of sap flow to the circadian regulation physiological state of the entire tree. Monitoring a variety of relevant parameters and sap flow in different tree organs, we illuminated the crown of a linden tree, Tilia cordata, with artificial daylight mimicking solar conditions during three consecutive nights. The patterns of stimulated nocturnal sap flow were compared to sap flow patterns observed during daytime. The response of sap flow to light stimuli was weak compared to daytime and diminished further as night progresses. Light induced sap flow during the night was very low and the responses to changes in light intensity were highly non-linear and sluggish. While sap flow correlated directly with changes in VPD during the day, it did not respond to occasional fluctuations in VPD at night. The results convincingly demonstrated the effectiveness of the internal regulation at the level of the entire large tree through gating of external stimuli.

Název v anglickém jazyce

Response of linden tree to nocturnal simulation of daylight conditions

Popis výsledku anglicky

Although the importance of the internal clock for plant development and fitness was extensively studied in the last few decades, the majority of work was conducted in laboratory conditions using some small plants as model species. The objective of this study was to determine the response of sap flow to the circadian regulation physiological state of the entire tree. Monitoring a variety of relevant parameters and sap flow in different tree organs, we illuminated the crown of a linden tree, Tilia cordata, with artificial daylight mimicking solar conditions during three consecutive nights. The patterns of stimulated nocturnal sap flow were compared to sap flow patterns observed during daytime. The response of sap flow to light stimuli was weak compared to daytime and diminished further as night progresses. Light induced sap flow during the night was very low and the responses to changes in light intensity were highly non-linear and sluggish. While sap flow correlated directly with changes in VPD during the day, it did not respond to occasional fluctuations in VPD at night. The results convincingly demonstrated the effectiveness of the internal regulation at the level of the entire large tree through gating of external stimuli.

Druh

J_imp - Článek v periodiku v databázi Web of Science

CEP obor

—

OECD FORD obor

10602 - Biology (theoretical, mathematical, thermal, cryobiology, biological rhythm), Evolutionary biology

Projekt

—

Návaznosti

I - Institucionalni podpora na dlouhodoby koncepcni rozvoj vyzkumne organizace

Rok uplatnění

2021

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

—

Svazek periodika

187

Číslo periodika v rámci svazku

July

Stát vydavatele periodika

GB - Spojené království Velké Británie a Severního Irska

Počet stran výsledku

10

Strana od-do

104477

Kód UT WoS článku

000651248600005

EID výsledku v databázi Scopus

2-s2.0-85104440284