Day-to-day variation in chlorophyll fluorescence parameters of northern and southern silver birch in a common garden

Kód výsledku v IS VaVaI

<a href="https://www.isvavai.cz/riv?ss=detail&h=RIV%2F60460709%3A41320%2F24%3A101456" target="_blank" >RIV/60460709:41320/24:101456 - isvavai.cz</a>

Výsledek na webu

<a href="https://link-springer-com.infozdroje.czu.cz/article/10.1007/s11676-024-01814-7" target="_blank" >https://link-springer-com.infozdroje.czu.cz/article/10.1007/s11676-024-01814-7</a>

DOI - Digital Object Identifier

<a href="http://dx.doi.org/10.1007/s11676-024-01814-7" target="_blank" >10.1007/s11676-024-01814-7</a>

Jazyk výsledku

angličtina

Název v původním jazyce

Day-to-day variation in chlorophyll fluorescence parameters of northern and southern silver birch in a common garden

Popis výsledku v původním jazyce

We used fast chlorophyll fluorescence transients (OJIP) to study provenance-related differences in photosynthetic performance and the magnitude of day-to-day chlorophyll fluorescence (ChlF) variation in northern (67 degrees N) and southern (62 degrees N) silver birches in a common garden at 62 degrees N. ChlF transients were measured five times during two weeks in the middle of summer to avoid seasonal variation. Differences in growth and leaf morphological traits between the provenances were also examined. The northern trees had higher chlorophyll content, larger leaf areas, and higher leaf fresh and dry mass than the southern trees, but the leaf mass per area did not differ between the provenances. The southern trees were taller and showed higher annual shoot growth than the northern trees. For all the ChlF parameters, day-to-day variation was significant and followed the same pattern for both provenances with no significant provenance x day interaction, suggesting a similar response to environmental variation. The northern provenance had higher values in parameters related to the reduction of end electron acceptors at the Photosystem I (PSI) acceptor side as probed by ChlF. This and higher values for performance indices PIabs and PItot in northern than in southern trees suggest higher photosynthetic performance of northern trees in line with the latitudinal compensation strategy. Provenance differences in these parameters increased towards the end of the measurement period, suggesting preparation for earlier growth cessation in northern trees triggered by the shortening day length. The study shows that provenance differences in ChlF can be relatively stable regardless of environmental variation but might be influenced by physiological alterations in preparation for future changes in environmental conditions.

Název v anglickém jazyce

Day-to-day variation in chlorophyll fluorescence parameters of northern and southern silver birch in a common garden

Popis výsledku anglicky

We used fast chlorophyll fluorescence transients (OJIP) to study provenance-related differences in photosynthetic performance and the magnitude of day-to-day chlorophyll fluorescence (ChlF) variation in northern (67 degrees N) and southern (62 degrees N) silver birches in a common garden at 62 degrees N. ChlF transients were measured five times during two weeks in the middle of summer to avoid seasonal variation. Differences in growth and leaf morphological traits between the provenances were also examined. The northern trees had higher chlorophyll content, larger leaf areas, and higher leaf fresh and dry mass than the southern trees, but the leaf mass per area did not differ between the provenances. The southern trees were taller and showed higher annual shoot growth than the northern trees. For all the ChlF parameters, day-to-day variation was significant and followed the same pattern for both provenances with no significant provenance x day interaction, suggesting a similar response to environmental variation. The northern provenance had higher values in parameters related to the reduction of end electron acceptors at the Photosystem I (PSI) acceptor side as probed by ChlF. This and higher values for performance indices PIabs and PItot in northern than in southern trees suggest higher photosynthetic performance of northern trees in line with the latitudinal compensation strategy. Provenance differences in these parameters increased towards the end of the measurement period, suggesting preparation for earlier growth cessation in northern trees triggered by the shortening day length. The study shows that provenance differences in ChlF can be relatively stable regardless of environmental variation but might be influenced by physiological alterations in preparation for future changes in environmental conditions.

Druh

J_imp - Článek v periodiku v databázi Web of Science

CEP obor

—

OECD FORD obor

40102 - Forestry

Projekt

—

Návaznosti

S - Specificky vyzkum na vysokych skolach

Rok uplatnění

2024

Kód důvěrnosti údajů

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

Název periodika

Journal of Forestry Research

ISSN

1007-662X

e-ISSN

1007-662X

Svazek periodika

36

Číslo periodika v rámci svazku

1

Stát vydavatele periodika

CZ - Česká republika

Počet stran výsledku

13

Strana od-do

1-13

Kód UT WoS článku

001385129000001

EID výsledku v databázi Scopus

2-s2.0-85213567931