Response of linden tree to nocturnal simulation of daylight conditions
Identifikátory výsledku
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>
Alternativní jazyky
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.
Klasifikace
Druh
J<sub>imp</sub> - Článek v periodiku v databázi Web of Science
CEP obor
—
OECD FORD obor
10602 - Biology (theoretical, mathematical, thermal, cryobiology, biological rhythm), Evolutionary biology
Návaznosti výsledku
Projekt
—
Návaznosti
I - Institucionalni podpora na dlouhodoby koncepcni rozvoj vyzkumne organizace
Ostatní
Rok uplatnění
2021
Kód důvěrnosti údajů
S - Úplné a pravdivé údaje o projektu nepodléhají ochraně podle zvláštních právních předpisů
Údaje specifické pro druh výsledku
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