Differences in photochemistry and response to heat stress between silver fir (Abies alba Mill.) provenances

Result code in IS VaVaI

<a href="https://www.isvavai.cz/riv?ss=detail&h=RIV%2F62156489%3A43410%2F18%3A43913086" target="_blank" >RIV/62156489:43410/18:43913086 - isvavai.cz</a>

Result on the web

<a href="http://dx.doi.org/10.1007/s00468-017-1612-9" target="_blank" >http://dx.doi.org/10.1007/s00468-017-1612-9</a>

DOI - Digital Object Identifier

<a href="http://dx.doi.org/10.1007/s00468-017-1612-9" target="_blank" >10.1007/s00468-017-1612-9</a>

Result language

angličtina

Original language name

Differences in photochemistry and response to heat stress between silver fir (Abies alba Mill.) provenances

Original language description

Key message: The acclimation of silver fir to the conditions of the plantation sites has greater influence on PSII thermostability and performance than does on local adaptation. Abstract: Forest ecosystems are frequently exposed to heat stress, which adversely affects their growth, performance, and ultimately survival. The knowledge of physiological responses to heat can help mitigate the effects of climate change by facilitating the choosing of suitable reproductive material for future reforestation programs. However, the intraspecific variation of adaptive traits, including the response to heat, has not been well documented. Therefore, we attempted to determine how PSII photochemistry of different silver fir (Abies alba Mill.) provenances varies in responses to heat stress and to reveal if intraspecific variation in PSII performance and thermostability is more affected by the climate of provenance origin or the plantation site. We tested 17 fir provenances sampled at two contrasting international provenance trial sites: Hertník in Slovakia (390 m a.s.l.) and Kaprun in Austria (1100 m a.s.l.). Short-term heat stress was simulated for seven temperatures ranging from 20 to 51 oC using a water bath. The PSII thermotolerance was assessed via parameters of chlorophyll a fluorescence derived from the OKJIP transient. We observed several climatic variables of the provenances that significantly affected the photochemistry performance and thermostability of PSII, reflecting an additive hereditary basis. Almost all measured parameters varied significantly between trial plots and showed significant trial-by-provenance interactions pointing to acclimation triggered by the different conditions at the trial plots. Overall, the performance of PSII under non-stressing conditions and after heat treatment was better for provenances growing at the warmer trial site at Hertník.

Czech name

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Czech description

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Type

J_imp - Article in a specialist periodical, which is included in the Web of Science database

CEP classification

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OECD FORD branch

40102 - Forestry

Project

—

Continuities

I - Institucionalni podpora na dlouhodoby koncepcni rozvoj vyzkumne organizace

Publication year

2018

Confidentiality

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

Name of the periodical

Trees - Structure and Function

ISSN

0931-1890

e-ISSN

—

Volume of the periodical

32

Issue of the periodical within the volume

1

Country of publishing house

DE - GERMANY

Number of pages

14

Pages from-to

73-86

UT code for WoS article

000424449000008

EID of the result in the Scopus database

2-s2.0-85029009295