The dose makes the poison: The longer the heat lasts, the lower the temperature for functional impairment and damage

Climate change increases the intensity and duration of heatwaves. Heat limits for plants are commonly determined by a 30-minute test. This neglects the effect of heat-dose (intensity x exposure-duration) on heat limits, which has been poorly studied. Heat limits for dysfunction (PSII efficiency) and...
Ausführliche Beschreibung

Gespeichert in:

Autor*in:	Neuner, Gilbert [verfasserIn] Buchner, Othmar [verfasserIn]

Format:	E-Artikel
Sprache:	Englisch

Erschienen:	2023

Schlagwörter:	Acquired thermo-tolerance Heat tolerance Heat resistance Heat stress Heatwave Photosystem II thermo-tolerance

Übergeordnetes Werk:	Enthalten in: Environmental and experimental botany - Amsterdam [u.a.] : Elsevier Science, 1976, 212
Übergeordnetes Werk:	volume:212

DOI / URN:	10.1016/j.envexpbot.2023.105395

Katalog-ID:	ELV010203362

Internformat


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245	1	0	\|a The dose makes the poison: The longer the heat lasts, the lower the temperature for functional impairment and damage
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520			\|a Climate change increases the intensity and duration of heatwaves. Heat limits for plants are commonly determined by a 30-minute test. This neglects the effect of heat-dose (intensity x exposure-duration) on heat limits, which has been poorly studied. Heat limits for dysfunction (PSII efficiency) and damage were measured after exposure to various heat-doses (34–64 °C x 1–512 min) for five alpine species. The ecological significance of heat-dose was tested based on measured natural heat episodes. With increasing exposure-duration heat limits for 5% damage decreased by 11.2–17.5 K. The same was found for PSII dysfunction, but on average at 7.4 K lower temperatures. Exposure-duration and LT50 followed a slightly species-specific, but logarithmic relationship. This seems very useful for modelling. Natural heat episodes lasted longer than 30 min which questions the 30-minute test. Comparison of natural heat load with the dose-dependent heat limits highlighted that adult trees are safe, but small plants are at high risk for prolonged PSII dysfunction, and even heat damage. Heat responses are not triggered by a single threshold temperature but dose-dependent. The logarithmic relationship found makes it possible to shorten test procedures, extrapolate the response for fully hardened plants and overall more accurately model their heat damage risk in future.
650		4	\|a Acquired thermo-tolerance
650		4	\|a Heat tolerance
650		4	\|a Heat resistance
650		4	\|a Heat stress
650		4	\|a Heatwave
650		4	\|a Photosystem II thermo-tolerance
700	1		\|a Buchner, Othmar \|e verfasserin \|4 aut
773	0	8	\|i Enthalten in \|t Environmental and experimental botany \|d Amsterdam [u.a.] : Elsevier Science, 1976 \|g 212 \|h Online-Ressource \|w (DE-627)306580748 \|w (DE-600)1497561-0 \|w (DE-576)090954467 \|x 0098-8472 \|7 nnns
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912			\|a GBV_ILN_24
912			\|a GBV_ILN_31
912			\|a GBV_ILN_32
912			\|a GBV_ILN_40
912			\|a GBV_ILN_60
912			\|a GBV_ILN_62
912			\|a GBV_ILN_65
912			\|a GBV_ILN_69
912			\|a GBV_ILN_70
912			\|a GBV_ILN_73
912			\|a GBV_ILN_74
912			\|a GBV_ILN_90
912			\|a GBV_ILN_100
912			\|a GBV_ILN_105
912			\|a GBV_ILN_110
912			\|a GBV_ILN_151
912			\|a GBV_ILN_187
912			\|a GBV_ILN_213
912			\|a GBV_ILN_224
912			\|a GBV_ILN_230
912			\|a GBV_ILN_370
912			\|a GBV_ILN_602
912			\|a GBV_ILN_702
912			\|a GBV_ILN_2001
912			\|a GBV_ILN_2003
912			\|a GBV_ILN_2004
912			\|a GBV_ILN_2005
912			\|a GBV_ILN_2007
912			\|a GBV_ILN_2008
912			\|a GBV_ILN_2009
912			\|a GBV_ILN_2010
912			\|a GBV_ILN_2011
912			\|a GBV_ILN_2014
912			\|a GBV_ILN_2015
912			\|a GBV_ILN_2020
912			\|a GBV_ILN_2021
912			\|a GBV_ILN_2025
912			\|a GBV_ILN_2026
912			\|a GBV_ILN_2027
912			\|a GBV_ILN_2034
912			\|a GBV_ILN_2044
912			\|a GBV_ILN_2048
912			\|a GBV_ILN_2049
912			\|a GBV_ILN_2050
912			\|a GBV_ILN_2055
912			\|a GBV_ILN_2056
912			\|a GBV_ILN_2059
912			\|a GBV_ILN_2061
912			\|a GBV_ILN_2064
912			\|a GBV_ILN_2088
912			\|a GBV_ILN_2106
912			\|a GBV_ILN_2110
912			\|a GBV_ILN_2111
912			\|a GBV_ILN_2112
912			\|a GBV_ILN_2122
912			\|a GBV_ILN_2129
912			\|a GBV_ILN_2143
912			\|a GBV_ILN_2152
912			\|a GBV_ILN_2153
912			\|a GBV_ILN_2190
912			\|a GBV_ILN_2232
912			\|a GBV_ILN_2336
912			\|a GBV_ILN_2470
912			\|a GBV_ILN_2507
912			\|a GBV_ILN_4035
912			\|a GBV_ILN_4037
912			\|a GBV_ILN_4112
912			\|a GBV_ILN_4125
912			\|a GBV_ILN_4242
912			\|a GBV_ILN_4249
912			\|a GBV_ILN_4251
912			\|a GBV_ILN_4305
912			\|a GBV_ILN_4306
912			\|a GBV_ILN_4307
912			\|a GBV_ILN_4313
912			\|a GBV_ILN_4322
912			\|a GBV_ILN_4323
912			\|a GBV_ILN_4324
912			\|a GBV_ILN_4325
912			\|a GBV_ILN_4326
912			\|a GBV_ILN_4333
912			\|a GBV_ILN_4334
912			\|a GBV_ILN_4338
912			\|a GBV_ILN_4393
912			\|a GBV_ILN_4700
936	b	k	\|a 42.00 \|j Biologie: Allgemeines \|q VZ
951			\|a AR
952			\|d 212

Indexfelder

author_variant	g n gn o b ob
matchkey_str	article:00988472:2023----::hdsmkshpioteogrhhalsshlwrhtmeaueofnt
hierarchy_sort_str	2023
bklnumber	42.00
publishDate	2023
allfields	10.1016/j.envexpbot.2023.105395 doi (DE-627)ELV010203362 (ELSEVIER)S0098-8472(23)00190-9 DE-627 ger DE-627 rda eng 580 VZ BIODIV DE-30 fid 42.00 bkl Neuner, Gilbert verfasserin (orcid)0000-0003-2415-6125 aut The dose makes the poison: The longer the heat lasts, the lower the temperature for functional impairment and damage 2023 nicht spezifiziert zzz rdacontent Computermedien c rdamedia Online-Ressource cr rdacarrier Climate change increases the intensity and duration of heatwaves. Heat limits for plants are commonly determined by a 30-minute test. This neglects the effect of heat-dose (intensity x exposure-duration) on heat limits, which has been poorly studied. Heat limits for dysfunction (PSII efficiency) and damage were measured after exposure to various heat-doses (34–64 °C x 1–512 min) for five alpine species. The ecological significance of heat-dose was tested based on measured natural heat episodes. With increasing exposure-duration heat limits for 5% damage decreased by 11.2–17.5 K. The same was found for PSII dysfunction, but on average at 7.4 K lower temperatures. Exposure-duration and LT50 followed a slightly species-specific, but logarithmic relationship. This seems very useful for modelling. Natural heat episodes lasted longer than 30 min which questions the 30-minute test. Comparison of natural heat load with the dose-dependent heat limits highlighted that adult trees are safe, but small plants are at high risk for prolonged PSII dysfunction, and even heat damage. Heat responses are not triggered by a single threshold temperature but dose-dependent. The logarithmic relationship found makes it possible to shorten test procedures, extrapolate the response for fully hardened plants and overall more accurately model their heat damage risk in future. Acquired thermo-tolerance Heat tolerance Heat resistance Heat stress Heatwave Photosystem II thermo-tolerance Buchner, Othmar verfasserin aut Enthalten in Environmental and experimental botany Amsterdam [u.a.] : Elsevier Science, 1976 212 Online-Ressource (DE-627)306580748 (DE-600)1497561-0 (DE-576)090954467 0098-8472 nnns volume:212 GBV_USEFLAG_U SYSFLAG_U GBV_ELV FID-BIODIV SSG-OLC-PHA GBV_ILN_20 GBV_ILN_22 GBV_ILN_23 GBV_ILN_24 GBV_ILN_31 GBV_ILN_32 GBV_ILN_40 GBV_ILN_60 GBV_ILN_62 GBV_ILN_65 GBV_ILN_69 GBV_ILN_70 GBV_ILN_73 GBV_ILN_74 GBV_ILN_90 GBV_ILN_100 GBV_ILN_105 GBV_ILN_110 GBV_ILN_151 GBV_ILN_187 GBV_ILN_213 GBV_ILN_224 GBV_ILN_230 GBV_ILN_370 GBV_ILN_602 GBV_ILN_702 GBV_ILN_2001 GBV_ILN_2003 GBV_ILN_2004 GBV_ILN_2005 GBV_ILN_2007 GBV_ILN_2008 GBV_ILN_2009 GBV_ILN_2010 GBV_ILN_2011 GBV_ILN_2014 GBV_ILN_2015 GBV_ILN_2020 GBV_ILN_2021 GBV_ILN_2025 GBV_ILN_2026 GBV_ILN_2027 GBV_ILN_2034 GBV_ILN_2044 GBV_ILN_2048 GBV_ILN_2049 GBV_ILN_2050 GBV_ILN_2055 GBV_ILN_2056 GBV_ILN_2059 GBV_ILN_2061 GBV_ILN_2064 GBV_ILN_2088 GBV_ILN_2106 GBV_ILN_2110 GBV_ILN_2111 GBV_ILN_2112 GBV_ILN_2122 GBV_ILN_2129 GBV_ILN_2143 GBV_ILN_2152 GBV_ILN_2153 GBV_ILN_2190 GBV_ILN_2232 GBV_ILN_2336 GBV_ILN_2470 GBV_ILN_2507 GBV_ILN_4035 GBV_ILN_4037 GBV_ILN_4112 GBV_ILN_4125 GBV_ILN_4242 GBV_ILN_4249 GBV_ILN_4251 GBV_ILN_4305 GBV_ILN_4306 GBV_ILN_4307 GBV_ILN_4313 GBV_ILN_4322 GBV_ILN_4323 GBV_ILN_4324 GBV_ILN_4325 GBV_ILN_4326 GBV_ILN_4333 GBV_ILN_4334 GBV_ILN_4338 GBV_ILN_4393 GBV_ILN_4700 42.00 Biologie: Allgemeines VZ AR 212
spelling	10.1016/j.envexpbot.2023.105395 doi (DE-627)ELV010203362 (ELSEVIER)S0098-8472(23)00190-9 DE-627 ger DE-627 rda eng 580 VZ BIODIV DE-30 fid 42.00 bkl Neuner, Gilbert verfasserin (orcid)0000-0003-2415-6125 aut The dose makes the poison: The longer the heat lasts, the lower the temperature for functional impairment and damage 2023 nicht spezifiziert zzz rdacontent Computermedien c rdamedia Online-Ressource cr rdacarrier Climate change increases the intensity and duration of heatwaves. Heat limits for plants are commonly determined by a 30-minute test. This neglects the effect of heat-dose (intensity x exposure-duration) on heat limits, which has been poorly studied. Heat limits for dysfunction (PSII efficiency) and damage were measured after exposure to various heat-doses (34–64 °C x 1–512 min) for five alpine species. The ecological significance of heat-dose was tested based on measured natural heat episodes. With increasing exposure-duration heat limits for 5% damage decreased by 11.2–17.5 K. The same was found for PSII dysfunction, but on average at 7.4 K lower temperatures. Exposure-duration and LT50 followed a slightly species-specific, but logarithmic relationship. This seems very useful for modelling. Natural heat episodes lasted longer than 30 min which questions the 30-minute test. Comparison of natural heat load with the dose-dependent heat limits highlighted that adult trees are safe, but small plants are at high risk for prolonged PSII dysfunction, and even heat damage. Heat responses are not triggered by a single threshold temperature but dose-dependent. The logarithmic relationship found makes it possible to shorten test procedures, extrapolate the response for fully hardened plants and overall more accurately model their heat damage risk in future. Acquired thermo-tolerance Heat tolerance Heat resistance Heat stress Heatwave Photosystem II thermo-tolerance Buchner, Othmar verfasserin aut Enthalten in Environmental and experimental botany Amsterdam [u.a.] : Elsevier Science, 1976 212 Online-Ressource (DE-627)306580748 (DE-600)1497561-0 (DE-576)090954467 0098-8472 nnns volume:212 GBV_USEFLAG_U SYSFLAG_U GBV_ELV FID-BIODIV SSG-OLC-PHA GBV_ILN_20 GBV_ILN_22 GBV_ILN_23 GBV_ILN_24 GBV_ILN_31 GBV_ILN_32 GBV_ILN_40 GBV_ILN_60 GBV_ILN_62 GBV_ILN_65 GBV_ILN_69 GBV_ILN_70 GBV_ILN_73 GBV_ILN_74 GBV_ILN_90 GBV_ILN_100 GBV_ILN_105 GBV_ILN_110 GBV_ILN_151 GBV_ILN_187 GBV_ILN_213 GBV_ILN_224 GBV_ILN_230 GBV_ILN_370 GBV_ILN_602 GBV_ILN_702 GBV_ILN_2001 GBV_ILN_2003 GBV_ILN_2004 GBV_ILN_2005 GBV_ILN_2007 GBV_ILN_2008 GBV_ILN_2009 GBV_ILN_2010 GBV_ILN_2011 GBV_ILN_2014 GBV_ILN_2015 GBV_ILN_2020 GBV_ILN_2021 GBV_ILN_2025 GBV_ILN_2026 GBV_ILN_2027 GBV_ILN_2034 GBV_ILN_2044 GBV_ILN_2048 GBV_ILN_2049 GBV_ILN_2050 GBV_ILN_2055 GBV_ILN_2056 GBV_ILN_2059 GBV_ILN_2061 GBV_ILN_2064 GBV_ILN_2088 GBV_ILN_2106 GBV_ILN_2110 GBV_ILN_2111 GBV_ILN_2112 GBV_ILN_2122 GBV_ILN_2129 GBV_ILN_2143 GBV_ILN_2152 GBV_ILN_2153 GBV_ILN_2190 GBV_ILN_2232 GBV_ILN_2336 GBV_ILN_2470 GBV_ILN_2507 GBV_ILN_4035 GBV_ILN_4037 GBV_ILN_4112 GBV_ILN_4125 GBV_ILN_4242 GBV_ILN_4249 GBV_ILN_4251 GBV_ILN_4305 GBV_ILN_4306 GBV_ILN_4307 GBV_ILN_4313 GBV_ILN_4322 GBV_ILN_4323 GBV_ILN_4324 GBV_ILN_4325 GBV_ILN_4326 GBV_ILN_4333 GBV_ILN_4334 GBV_ILN_4338 GBV_ILN_4393 GBV_ILN_4700 42.00 Biologie: Allgemeines VZ AR 212
allfields_unstemmed	10.1016/j.envexpbot.2023.105395 doi (DE-627)ELV010203362 (ELSEVIER)S0098-8472(23)00190-9 DE-627 ger DE-627 rda eng 580 VZ BIODIV DE-30 fid 42.00 bkl Neuner, Gilbert verfasserin (orcid)0000-0003-2415-6125 aut The dose makes the poison: The longer the heat lasts, the lower the temperature for functional impairment and damage 2023 nicht spezifiziert zzz rdacontent Computermedien c rdamedia Online-Ressource cr rdacarrier Climate change increases the intensity and duration of heatwaves. Heat limits for plants are commonly determined by a 30-minute test. This neglects the effect of heat-dose (intensity x exposure-duration) on heat limits, which has been poorly studied. Heat limits for dysfunction (PSII efficiency) and damage were measured after exposure to various heat-doses (34–64 °C x 1–512 min) for five alpine species. The ecological significance of heat-dose was tested based on measured natural heat episodes. With increasing exposure-duration heat limits for 5% damage decreased by 11.2–17.5 K. The same was found for PSII dysfunction, but on average at 7.4 K lower temperatures. Exposure-duration and LT50 followed a slightly species-specific, but logarithmic relationship. This seems very useful for modelling. Natural heat episodes lasted longer than 30 min which questions the 30-minute test. Comparison of natural heat load with the dose-dependent heat limits highlighted that adult trees are safe, but small plants are at high risk for prolonged PSII dysfunction, and even heat damage. Heat responses are not triggered by a single threshold temperature but dose-dependent. The logarithmic relationship found makes it possible to shorten test procedures, extrapolate the response for fully hardened plants and overall more accurately model their heat damage risk in future. Acquired thermo-tolerance Heat tolerance Heat resistance Heat stress Heatwave Photosystem II thermo-tolerance Buchner, Othmar verfasserin aut Enthalten in Environmental and experimental botany Amsterdam [u.a.] : Elsevier Science, 1976 212 Online-Ressource (DE-627)306580748 (DE-600)1497561-0 (DE-576)090954467 0098-8472 nnns volume:212 GBV_USEFLAG_U SYSFLAG_U GBV_ELV FID-BIODIV SSG-OLC-PHA GBV_ILN_20 GBV_ILN_22 GBV_ILN_23 GBV_ILN_24 GBV_ILN_31 GBV_ILN_32 GBV_ILN_40 GBV_ILN_60 GBV_ILN_62 GBV_ILN_65 GBV_ILN_69 GBV_ILN_70 GBV_ILN_73 GBV_ILN_74 GBV_ILN_90 GBV_ILN_100 GBV_ILN_105 GBV_ILN_110 GBV_ILN_151 GBV_ILN_187 GBV_ILN_213 GBV_ILN_224 GBV_ILN_230 GBV_ILN_370 GBV_ILN_602 GBV_ILN_702 GBV_ILN_2001 GBV_ILN_2003 GBV_ILN_2004 GBV_ILN_2005 GBV_ILN_2007 GBV_ILN_2008 GBV_ILN_2009 GBV_ILN_2010 GBV_ILN_2011 GBV_ILN_2014 GBV_ILN_2015 GBV_ILN_2020 GBV_ILN_2021 GBV_ILN_2025 GBV_ILN_2026 GBV_ILN_2027 GBV_ILN_2034 GBV_ILN_2044 GBV_ILN_2048 GBV_ILN_2049 GBV_ILN_2050 GBV_ILN_2055 GBV_ILN_2056 GBV_ILN_2059 GBV_ILN_2061 GBV_ILN_2064 GBV_ILN_2088 GBV_ILN_2106 GBV_ILN_2110 GBV_ILN_2111 GBV_ILN_2112 GBV_ILN_2122 GBV_ILN_2129 GBV_ILN_2143 GBV_ILN_2152 GBV_ILN_2153 GBV_ILN_2190 GBV_ILN_2232 GBV_ILN_2336 GBV_ILN_2470 GBV_ILN_2507 GBV_ILN_4035 GBV_ILN_4037 GBV_ILN_4112 GBV_ILN_4125 GBV_ILN_4242 GBV_ILN_4249 GBV_ILN_4251 GBV_ILN_4305 GBV_ILN_4306 GBV_ILN_4307 GBV_ILN_4313 GBV_ILN_4322 GBV_ILN_4323 GBV_ILN_4324 GBV_ILN_4325 GBV_ILN_4326 GBV_ILN_4333 GBV_ILN_4334 GBV_ILN_4338 GBV_ILN_4393 GBV_ILN_4700 42.00 Biologie: Allgemeines VZ AR 212
allfieldsGer	10.1016/j.envexpbot.2023.105395 doi (DE-627)ELV010203362 (ELSEVIER)S0098-8472(23)00190-9 DE-627 ger DE-627 rda eng 580 VZ BIODIV DE-30 fid 42.00 bkl Neuner, Gilbert verfasserin (orcid)0000-0003-2415-6125 aut The dose makes the poison: The longer the heat lasts, the lower the temperature for functional impairment and damage 2023 nicht spezifiziert zzz rdacontent Computermedien c rdamedia Online-Ressource cr rdacarrier Climate change increases the intensity and duration of heatwaves. Heat limits for plants are commonly determined by a 30-minute test. This neglects the effect of heat-dose (intensity x exposure-duration) on heat limits, which has been poorly studied. Heat limits for dysfunction (PSII efficiency) and damage were measured after exposure to various heat-doses (34–64 °C x 1–512 min) for five alpine species. The ecological significance of heat-dose was tested based on measured natural heat episodes. With increasing exposure-duration heat limits for 5% damage decreased by 11.2–17.5 K. The same was found for PSII dysfunction, but on average at 7.4 K lower temperatures. Exposure-duration and LT50 followed a slightly species-specific, but logarithmic relationship. This seems very useful for modelling. Natural heat episodes lasted longer than 30 min which questions the 30-minute test. Comparison of natural heat load with the dose-dependent heat limits highlighted that adult trees are safe, but small plants are at high risk for prolonged PSII dysfunction, and even heat damage. Heat responses are not triggered by a single threshold temperature but dose-dependent. The logarithmic relationship found makes it possible to shorten test procedures, extrapolate the response for fully hardened plants and overall more accurately model their heat damage risk in future. Acquired thermo-tolerance Heat tolerance Heat resistance Heat stress Heatwave Photosystem II thermo-tolerance Buchner, Othmar verfasserin aut Enthalten in Environmental and experimental botany Amsterdam [u.a.] : Elsevier Science, 1976 212 Online-Ressource (DE-627)306580748 (DE-600)1497561-0 (DE-576)090954467 0098-8472 nnns volume:212 GBV_USEFLAG_U SYSFLAG_U GBV_ELV FID-BIODIV SSG-OLC-PHA GBV_ILN_20 GBV_ILN_22 GBV_ILN_23 GBV_ILN_24 GBV_ILN_31 GBV_ILN_32 GBV_ILN_40 GBV_ILN_60 GBV_ILN_62 GBV_ILN_65 GBV_ILN_69 GBV_ILN_70 GBV_ILN_73 GBV_ILN_74 GBV_ILN_90 GBV_ILN_100 GBV_ILN_105 GBV_ILN_110 GBV_ILN_151 GBV_ILN_187 GBV_ILN_213 GBV_ILN_224 GBV_ILN_230 GBV_ILN_370 GBV_ILN_602 GBV_ILN_702 GBV_ILN_2001 GBV_ILN_2003 GBV_ILN_2004 GBV_ILN_2005 GBV_ILN_2007 GBV_ILN_2008 GBV_ILN_2009 GBV_ILN_2010 GBV_ILN_2011 GBV_ILN_2014 GBV_ILN_2015 GBV_ILN_2020 GBV_ILN_2021 GBV_ILN_2025 GBV_ILN_2026 GBV_ILN_2027 GBV_ILN_2034 GBV_ILN_2044 GBV_ILN_2048 GBV_ILN_2049 GBV_ILN_2050 GBV_ILN_2055 GBV_ILN_2056 GBV_ILN_2059 GBV_ILN_2061 GBV_ILN_2064 GBV_ILN_2088 GBV_ILN_2106 GBV_ILN_2110 GBV_ILN_2111 GBV_ILN_2112 GBV_ILN_2122 GBV_ILN_2129 GBV_ILN_2143 GBV_ILN_2152 GBV_ILN_2153 GBV_ILN_2190 GBV_ILN_2232 GBV_ILN_2336 GBV_ILN_2470 GBV_ILN_2507 GBV_ILN_4035 GBV_ILN_4037 GBV_ILN_4112 GBV_ILN_4125 GBV_ILN_4242 GBV_ILN_4249 GBV_ILN_4251 GBV_ILN_4305 GBV_ILN_4306 GBV_ILN_4307 GBV_ILN_4313 GBV_ILN_4322 GBV_ILN_4323 GBV_ILN_4324 GBV_ILN_4325 GBV_ILN_4326 GBV_ILN_4333 GBV_ILN_4334 GBV_ILN_4338 GBV_ILN_4393 GBV_ILN_4700 42.00 Biologie: Allgemeines VZ AR 212
allfieldsSound	10.1016/j.envexpbot.2023.105395 doi (DE-627)ELV010203362 (ELSEVIER)S0098-8472(23)00190-9 DE-627 ger DE-627 rda eng 580 VZ BIODIV DE-30 fid 42.00 bkl Neuner, Gilbert verfasserin (orcid)0000-0003-2415-6125 aut The dose makes the poison: The longer the heat lasts, the lower the temperature for functional impairment and damage 2023 nicht spezifiziert zzz rdacontent Computermedien c rdamedia Online-Ressource cr rdacarrier Climate change increases the intensity and duration of heatwaves. Heat limits for plants are commonly determined by a 30-minute test. This neglects the effect of heat-dose (intensity x exposure-duration) on heat limits, which has been poorly studied. Heat limits for dysfunction (PSII efficiency) and damage were measured after exposure to various heat-doses (34–64 °C x 1–512 min) for five alpine species. The ecological significance of heat-dose was tested based on measured natural heat episodes. With increasing exposure-duration heat limits for 5% damage decreased by 11.2–17.5 K. The same was found for PSII dysfunction, but on average at 7.4 K lower temperatures. Exposure-duration and LT50 followed a slightly species-specific, but logarithmic relationship. This seems very useful for modelling. Natural heat episodes lasted longer than 30 min which questions the 30-minute test. Comparison of natural heat load with the dose-dependent heat limits highlighted that adult trees are safe, but small plants are at high risk for prolonged PSII dysfunction, and even heat damage. Heat responses are not triggered by a single threshold temperature but dose-dependent. The logarithmic relationship found makes it possible to shorten test procedures, extrapolate the response for fully hardened plants and overall more accurately model their heat damage risk in future. Acquired thermo-tolerance Heat tolerance Heat resistance Heat stress Heatwave Photosystem II thermo-tolerance Buchner, Othmar verfasserin aut Enthalten in Environmental and experimental botany Amsterdam [u.a.] : Elsevier Science, 1976 212 Online-Ressource (DE-627)306580748 (DE-600)1497561-0 (DE-576)090954467 0098-8472 nnns volume:212 GBV_USEFLAG_U SYSFLAG_U GBV_ELV FID-BIODIV SSG-OLC-PHA GBV_ILN_20 GBV_ILN_22 GBV_ILN_23 GBV_ILN_24 GBV_ILN_31 GBV_ILN_32 GBV_ILN_40 GBV_ILN_60 GBV_ILN_62 GBV_ILN_65 GBV_ILN_69 GBV_ILN_70 GBV_ILN_73 GBV_ILN_74 GBV_ILN_90 GBV_ILN_100 GBV_ILN_105 GBV_ILN_110 GBV_ILN_151 GBV_ILN_187 GBV_ILN_213 GBV_ILN_224 GBV_ILN_230 GBV_ILN_370 GBV_ILN_602 GBV_ILN_702 GBV_ILN_2001 GBV_ILN_2003 GBV_ILN_2004 GBV_ILN_2005 GBV_ILN_2007 GBV_ILN_2008 GBV_ILN_2009 GBV_ILN_2010 GBV_ILN_2011 GBV_ILN_2014 GBV_ILN_2015 GBV_ILN_2020 GBV_ILN_2021 GBV_ILN_2025 GBV_ILN_2026 GBV_ILN_2027 GBV_ILN_2034 GBV_ILN_2044 GBV_ILN_2048 GBV_ILN_2049 GBV_ILN_2050 GBV_ILN_2055 GBV_ILN_2056 GBV_ILN_2059 GBV_ILN_2061 GBV_ILN_2064 GBV_ILN_2088 GBV_ILN_2106 GBV_ILN_2110 GBV_ILN_2111 GBV_ILN_2112 GBV_ILN_2122 GBV_ILN_2129 GBV_ILN_2143 GBV_ILN_2152 GBV_ILN_2153 GBV_ILN_2190 GBV_ILN_2232 GBV_ILN_2336 GBV_ILN_2470 GBV_ILN_2507 GBV_ILN_4035 GBV_ILN_4037 GBV_ILN_4112 GBV_ILN_4125 GBV_ILN_4242 GBV_ILN_4249 GBV_ILN_4251 GBV_ILN_4305 GBV_ILN_4306 GBV_ILN_4307 GBV_ILN_4313 GBV_ILN_4322 GBV_ILN_4323 GBV_ILN_4324 GBV_ILN_4325 GBV_ILN_4326 GBV_ILN_4333 GBV_ILN_4334 GBV_ILN_4338 GBV_ILN_4393 GBV_ILN_4700 42.00 Biologie: Allgemeines VZ AR 212
language	English
source	Enthalten in Environmental and experimental botany 212 volume:212
sourceStr	Enthalten in Environmental and experimental botany 212 volume:212
format_phy_str_mv	Article
bklname	Biologie: Allgemeines
institution	findex.gbv.de
topic_facet	Acquired thermo-tolerance Heat tolerance Heat resistance Heat stress Heatwave Photosystem II thermo-tolerance
dewey-raw	580
isfreeaccess_bool	false
container_title	Environmental and experimental botany
authorswithroles_txt_mv	Neuner, Gilbert @@aut@@ Buchner, Othmar @@aut@@
publishDateDaySort_date	2023-01-01T00:00:00Z
hierarchy_top_id	306580748
dewey-sort	3580
id	ELV010203362
language_de	englisch
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author	Neuner, Gilbert
spellingShingle	Neuner, Gilbert ddc 580 fid BIODIV bkl 42.00 misc Acquired thermo-tolerance misc Heat tolerance misc Heat resistance misc Heat stress misc Heatwave misc Photosystem II thermo-tolerance The dose makes the poison: The longer the heat lasts, the lower the temperature for functional impairment and damage
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topic_title	580 VZ BIODIV DE-30 fid 42.00 bkl The dose makes the poison: The longer the heat lasts, the lower the temperature for functional impairment and damage Acquired thermo-tolerance Heat tolerance Heat resistance Heat stress Heatwave Photosystem II thermo-tolerance
topic	ddc 580 fid BIODIV bkl 42.00 misc Acquired thermo-tolerance misc Heat tolerance misc Heat resistance misc Heat stress misc Heatwave misc Photosystem II thermo-tolerance
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title	The dose makes the poison: The longer the heat lasts, the lower the temperature for functional impairment and damage
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title_full	The dose makes the poison: The longer the heat lasts, the lower the temperature for functional impairment and damage
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title_sort	the dose makes the poison: the longer the heat lasts, the lower the temperature for functional impairment and damage
title_auth	The dose makes the poison: The longer the heat lasts, the lower the temperature for functional impairment and damage
abstract	Climate change increases the intensity and duration of heatwaves. Heat limits for plants are commonly determined by a 30-minute test. This neglects the effect of heat-dose (intensity x exposure-duration) on heat limits, which has been poorly studied. Heat limits for dysfunction (PSII efficiency) and damage were measured after exposure to various heat-doses (34–64 °C x 1–512 min) for five alpine species. The ecological significance of heat-dose was tested based on measured natural heat episodes. With increasing exposure-duration heat limits for 5% damage decreased by 11.2–17.5 K. The same was found for PSII dysfunction, but on average at 7.4 K lower temperatures. Exposure-duration and LT50 followed a slightly species-specific, but logarithmic relationship. This seems very useful for modelling. Natural heat episodes lasted longer than 30 min which questions the 30-minute test. Comparison of natural heat load with the dose-dependent heat limits highlighted that adult trees are safe, but small plants are at high risk for prolonged PSII dysfunction, and even heat damage. Heat responses are not triggered by a single threshold temperature but dose-dependent. The logarithmic relationship found makes it possible to shorten test procedures, extrapolate the response for fully hardened plants and overall more accurately model their heat damage risk in future.
abstractGer	Climate change increases the intensity and duration of heatwaves. Heat limits for plants are commonly determined by a 30-minute test. This neglects the effect of heat-dose (intensity x exposure-duration) on heat limits, which has been poorly studied. Heat limits for dysfunction (PSII efficiency) and damage were measured after exposure to various heat-doses (34–64 °C x 1–512 min) for five alpine species. The ecological significance of heat-dose was tested based on measured natural heat episodes. With increasing exposure-duration heat limits for 5% damage decreased by 11.2–17.5 K. The same was found for PSII dysfunction, but on average at 7.4 K lower temperatures. Exposure-duration and LT50 followed a slightly species-specific, but logarithmic relationship. This seems very useful for modelling. Natural heat episodes lasted longer than 30 min which questions the 30-minute test. Comparison of natural heat load with the dose-dependent heat limits highlighted that adult trees are safe, but small plants are at high risk for prolonged PSII dysfunction, and even heat damage. Heat responses are not triggered by a single threshold temperature but dose-dependent. The logarithmic relationship found makes it possible to shorten test procedures, extrapolate the response for fully hardened plants and overall more accurately model their heat damage risk in future.
abstract_unstemmed	Climate change increases the intensity and duration of heatwaves. Heat limits for plants are commonly determined by a 30-minute test. This neglects the effect of heat-dose (intensity x exposure-duration) on heat limits, which has been poorly studied. Heat limits for dysfunction (PSII efficiency) and damage were measured after exposure to various heat-doses (34–64 °C x 1–512 min) for five alpine species. The ecological significance of heat-dose was tested based on measured natural heat episodes. With increasing exposure-duration heat limits for 5% damage decreased by 11.2–17.5 K. The same was found for PSII dysfunction, but on average at 7.4 K lower temperatures. Exposure-duration and LT50 followed a slightly species-specific, but logarithmic relationship. This seems very useful for modelling. Natural heat episodes lasted longer than 30 min which questions the 30-minute test. Comparison of natural heat load with the dose-dependent heat limits highlighted that adult trees are safe, but small plants are at high risk for prolonged PSII dysfunction, and even heat damage. Heat responses are not triggered by a single threshold temperature but dose-dependent. The logarithmic relationship found makes it possible to shorten test procedures, extrapolate the response for fully hardened plants and overall more accurately model their heat damage risk in future.
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title_short	The dose makes the poison: The longer the heat lasts, the lower the temperature for functional impairment and damage
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up_date	2024-07-06T17:10:46.744Z
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