NDLI: Responses of photosynthesis to high temperatures in oak saplings assessed by chlorophyll-a fluorescence: inter-specific diversity and temperature-induced plasticity

Please wait, while we are loading the content...

Responses of photosynthesis to high temperatures in oak saplings assessed by chlorophyll-a fluorescence: inter-specific diversity and temperature-induced plasticity

Response of Scots pine (Pinus sylvestris L.) and pubescent oak (Quercus pubescens Willd.) to soil and atmospheric water deficits under Mediterranean mountain climate

Relationships between growth stress and wood properties in poplar I-69 (Populus deltoides Bartr. cv. “Lux” ex I-69/55)

Thinning intensity and growth response in SW-European Scots pine stands

Damage reduction and performance of mass trapping devices for forest protection against the spruce bark beetle, Ips typographus (Coleoptera Curculionidae Scolytinae)

Genetic diversity and population structure in wild stands of cacao trees (Theobroma cacao L.) in French Guiana

Functional traits and plasticity linked to seedlings’ performance under shade and drought in Mediterranean woody species

Annals of Forest Science : Volume 65, Issue 2, January 2008

Annals of Forest Science : Volume 65, Issue 1, January 2008

Annals of Forest Science : Volume 64

Responses of photosynthesis to high temperatures in oak saplings assessed by chlorophyll-a fluorescence: inter-specific diversity and temperature-induced plasticity

Content Provider	Springer Nature Link
Author	Daas, Chyraz Montpied, Pierre Hanchi, Belgacem Dreyer, Erwin
Copyright Year	2008
Abstract	• The sensitivity of photosynthesis to high temperature was investigated in greenhouse-grown saplings of three Mediterranean (Quercus canariensis Willd., Q. coccifera L. and Q. suber L.) and two temperate European oak species (Q. robur L. and Q. petraea Matt. Liebl.). The sensitivity to high temperature was inferred from F 0T curves producing the critical temperature (T c ) at which a rapid rise in ground chlorophyll a fluorescence (F 0) occurs. T c is known to acclimate to moderately increased ambient temperature by displaying significant increases. • We first checked whether acclimation of T c was paralleled by an increase in optimal temperature for light driven electron flux (T opt ,), recorded by measuring quantum yield of photochemistry under saturating CO2 and moderate irradiance. Saplings of Q. suber and Q. canariensis were submitted to four, five days long ambient temperature steps (15, 25, 35 and 15 °C again). T c was usually largely above 45 °C while T opt was around 30–35 °C. Both increased with ambient temperature in the two species, and decreased again when temperature returned to the initial values. This recovery was nevertheless not complete after a week at 15 °C. • A second experiment tested whether the plasticity of T c was of the same extent in the five species. A significant increase of T c followed by a decrease was detected in all species. Only small inter-specific differences were detected in T c , and temperature induced plasticity was similar in the different species: T c increased by about 4–5 °C while ambient temperature was increased from 15 to 35 °C. Mediterranean and European oaks did not differ in this respect. • This result does not support the hypothesis that oak species from warmer regions would display a larger plasticity of T c in response to increasing temperatures. • La sensibilité de la photosynthèse à des températures élevées a été étudiée chez cinq espèces de chênes : trois méditerranéennes (Quercus canariensis Willd., Q. coccifera L. et Q. suber L.) et deux tempérées (Q. robur L. et Q. petraea Matt. Liebl.). La sensibilité aux fortes températures était estimée suivant la procédure des courbes F 0 T par la température critique (T c ) au dessus de la quelle la fluorescence de base de la chlorophylle (F 0) augmente rapidement. T c présente une forte capacité d’acclimatation et augmente sensiblement après une élévation modérée de la température ambiante. • Dans une première expérimentation nous avons vérifié si une augmentation de T c s’accompagnait d’une augmentation de la température optimale du transfert d’électrons durant la photochimie (T opt ,), estimée par mesure du rendement quantique de la photochimie sous CO2 saturant sous éclairement modéré. Les jeunes plants de Q. suber et Q. canariensis ont été soumis à quatre températures ambiantes (15 °C, 25 °C, 35 °C et de nouveau 15 °C) pendant cinq jours. T c atteignait des valeurs supérieures à 45 °C alors que T opt était aux alentours de 30–35 °C. Chez les deux espèces, ces paramètres ont augmenté avec la température ambiante et à nouveau diminué lors du retour à la température initiale. Nous avons conclu que le changement de la thermostabilité de la photochimie du PSII s’est accompagné d’un changement de la température optimale du transfert d’électrons photosynthétiques. • Dans une deuxième expérimentation nous avons comparé T c sur cinq espèces de chêne soumises à la même séquence climatique que précédemment. T c et sa plasticité différaient très peu entre espèces : T c a augmenté de 4–5 °C alors que la température ambiante passait de 15 à 35 °C. Les cinq espèces de chênes ne présentaient pas de différences marquées ni de valeur absolue de T c , ni de plasticité de ce paramètre. • Ces résultats ne confirment pas l’hypothèse que les espèces méditerranéennes de chêne présenteraient des valeurs plus élevées de T c , ou une plus forte plasticité de ce paramètre que les espèces de régions tempérées.
Starting Page	305
Ending Page	305
Page Count	1
File Format	PDF
ISSN	12864560
Journal	Annals of Forest Science
Volume Number	65
Issue Number	3
e-ISSN	1297966X
Language	French
Publisher	Springer Netherlands
Publisher Date	2008-01-01
Publisher Institution	Institut National de la Recherche Agronomique (INRA)
Publisher Place	Dordrecht
Access Restriction	Subscribed
Subject Keyword	Forestry Wood Science & Technology Forestry Management Tree Biology Environment
Content Type	Text
Resource Type	Article
Subject	Ecology Forestry

Sl.	Authority	Responsibilities	Communication Details
1	Ministry of Education (GoI), Department of Higher Education	Sanctioning Authority	https://www.education.gov.in/ict-initiatives
2	Indian Institute of Technology Kharagpur	Host Institute of the Project: The host institute of the project is responsible for providing infrastructure support and hosting the project	https://www.iitkgp.ac.in
3	National Digital Library of India Office, Indian Institute of Technology Kharagpur	The administrative and infrastructural headquarters of the project	Dr. B. Sutradhar bsutra@ndl.gov.in
4	Project PI / Joint PI	Principal Investigator and Joint Principal Investigators of the project	Dr. B. Sutradhar bsutra@ndl.gov.in Prof. Saswat Chakrabarti will be added soon
5	Website/Portal (Helpdesk)	Queries regarding NDLI and its services	support@ndl.gov.in
6	Contents and Copyright Issues	Queries related to content curation and copyright issues	content@ndl.gov.in
7	National Digital Library of India Club (NDLI Club)	Queries related to NDLI Club formation, support, user awareness program, seminar/symposium, collaboration, social media, promotion, and outreach	clubsupport@ndl.gov.in
8	Digital Preservation Centre (DPC)	Assistance with digitizing and archiving copyright-free printed books	dpc@ndl.gov.in
9	IDR Setup or Support	Queries related to establishment and support of Institutional Digital Repository (IDR) and IDR workshops	idr@ndl.gov.in

Responses of photosynthesis to high temperatures in oak saplings assessed by chlorophyll-a fluorescence: inter-specific diversity and temperature-induced plasticity

Responses of photosynthesis to high temperatures in oak saplings assessed by chlorophyll-a fluorescence: inter-specific diversity and temperature-induced plasticity

Frost damage in Pinus sylvestris L. stems assessed by chlorophyll fluorescence in cortical bark chlorenchyma

Growth versus storage: responses of Mediterranean oak seedlings to changes in nutrient and water availabilities

Drying and soaking pretreatments affect germination in pedunculate oak

Merchantable volume system for pedunculate oak in northwestern Spain

Radial variation of wood density components and ring width in cork oak trees

Local-scale diversity and adaptation along elevational gradients assessed by reciprocal transplant experiments: lack of local adaptation in silver fir populations

A trait database for Guianan rain forest trees permits intra- and inter-specific contrasts

Responses of photosynthesis to high temperatures in oak saplings assessed by chlorophyll-a fluorescence: inter-specific diversity and temperature-induced plasticity

Similar Documents

Responses of photosynthesis to high temperatures in oak saplings assessed by chlorophyll-a fluorescence: inter-specific diversity and temperature-induced plasticity

Responses of photosynthesis to high temperatures in oak saplings assessed by chlorophyll-a fluorescence: inter-specific diversity and temperature-induced plasticity

Frost damage in Pinus sylvestris L. stems assessed by chlorophyll fluorescence in cortical bark chlorenchyma

Growth versus storage: responses of Mediterranean oak seedlings to changes in nutrient and water availabilities

Drying and soaking pretreatments affect germination in pedunculate oak

Merchantable volume system for pedunculate oak in northwestern Spain

Radial variation of wood density components and ring width in cork oak trees

Local-scale diversity and adaptation along elevational gradients assessed by reciprocal transplant experiments: lack of local adaptation in silver fir populations

A trait database for Guianan rain forest trees permits intra- and inter-specific contrasts

Responses of photosynthesis to high temperatures in oak saplings assessed by chlorophyll-a fluorescence: inter-specific diversity and temperature-induced plasticity