001     56247
005     20180211190323.0
024 7 _ |2 pmid
|a pmid:17259287
024 7 _ |2 pmc
|a pmc:PMC1820919
024 7 _ |2 DOI
|a 10.1104/pp.106.092312
024 7 _ |2 WOS
|a WOS:000244757700016
037 _ _ |a PreJuSER-56247
041 _ _ |a eng
082 _ _ |a 580
084 _ _ |2 WoS
|a Plant Sciences
100 1 _ |a Busch, F.
|b 0
|u FZJ
|0 P:(DE-Juel1)VDB3441
245 _ _ |a Increased air temperature during simulated autumn conditions does not increase photosynthetic carbon gain but affects the dissipation of excess energy in seedlings of the evergreen conifer Jack Pine
260 _ _ |a Rockville, Md.: Soc.
|b JSTOR
|c 2007
300 _ _ |a 1242 - 1251
336 7 _ |a Journal Article
|0 PUB:(DE-HGF)16
|2 PUB:(DE-HGF)
336 7 _ |a Output Types/Journal article
|2 DataCite
336 7 _ |a Journal Article
|0 0
|2 EndNote
336 7 _ |a ARTICLE
|2 BibTeX
336 7 _ |a JOURNAL_ARTICLE
|2 ORCID
336 7 _ |a article
|2 DRIVER
440 _ 0 |a Plant Physiology
|x 0032-0889
|0 4987
|v 143
500 _ _ |a Record converted from VDB: 12.11.2012
520 _ _ |a Temperature and daylength act as environmental signals that determine the length of the growing season in boreal evergreen conifers. Climate change might affect the seasonal development of these trees, as they will experience naturally decreasing daylength during autumn, while at the same time warmer air temperature will maintain photosynthesis and respiration. We characterized the down-regulation of photosynthetic gas exchange and the mechanisms involved in the dissipation of energy in Jack pine (Pinus banksiana) in controlled environments during a simulated summer-autumn transition under natural conditions and conditions with altered air temperature and photoperiod. Using a factorial design, we dissected the effects of daylength and temperature. Control plants were grown at either warm summer conditions with 16-h photoperiod and 22 degrees C or conditions representing a cool autumn with 8 h/7 degrees C. To assess the impact of photoperiod and temperature on photosynthesis and energy dissipation, plants were also grown under either cold summer (16-h photoperiod/7 degrees C) or warm autumn conditions (8-h photoperiod/22 degrees C). Photosynthetic gas exchange was affected by both daylength and temperature. Assimilation and respiration rates under warm autumn conditions were only about one-half of the summer values but were similar to values obtained for cold summer and natural autumn treatments. In contrast, photosynthetic efficiency was largely determined by temperature but not by daylength. Plants of different treatments followed different strategies for dissipating excess energy. Whereas in the warm summer treatment safe dissipation of excess energy was facilitated via zeaxanthin, in all other treatments dissipation of excess energy was facilitated predominantly via increased aggregation of the light-harvesting complex of photosystem II. These differences were accompanied by a lower deepoxidation state and larger amounts of beta-carotene in the warm autumn treatment as well as by changes in the abundance of thylakoid membrane proteins compared to the summer condition. We conclude that photoperiod control of dormancy in Jack pine appears to negate any potential for an increased carbon gain associated with higher temperatures during the autumn season.
536 _ _ |a Terrestrische Umwelt
|c P24
|2 G:(DE-HGF)
|0 G:(DE-Juel1)FUEK407
|x 0
588 _ _ |a Dataset connected to Web of Science, Pubmed
650 _ 2 |2 MeSH
|a Carbohydrate Metabolism
650 _ 2 |2 MeSH
|a Carbon: metabolism
650 _ 2 |2 MeSH
|a Carbon Dioxide: metabolism
650 _ 2 |2 MeSH
|a Chlorophyll: metabolism
650 _ 2 |2 MeSH
|a Energy Metabolism
650 _ 2 |2 MeSH
|a Fluorescence
650 _ 2 |2 MeSH
|a Photoperiod
650 _ 2 |2 MeSH
|a Photosynthesis
650 _ 2 |2 MeSH
|a Pigments, Biological: metabolism
650 _ 2 |2 MeSH
|a Pinus: growth & development
650 _ 2 |2 MeSH
|a Pinus: metabolism
650 _ 2 |2 MeSH
|a Saskatchewan
650 _ 2 |2 MeSH
|a Seasons
650 _ 2 |2 MeSH
|a Seedling: metabolism
650 _ 2 |2 MeSH
|a Temperature
650 _ 7 |0 0
|2 NLM Chemicals
|a Pigments, Biological
650 _ 7 |0 124-38-9
|2 NLM Chemicals
|a Carbon Dioxide
650 _ 7 |0 1406-65-1
|2 NLM Chemicals
|a Chlorophyll
650 _ 7 |0 7440-44-0
|2 NLM Chemicals
|a Carbon
650 _ 7 |a J
|2 WoSType
700 1 _ |a Hüner, N. P. A.
|b 1
|0 P:(DE-HGF)0
700 1 _ |a Ensminger, I.
|b 2
|0 P:(DE-HGF)0
773 _ _ |a 10.1104/pp.106.092312
|g Vol. 143, p. 1242 - 1251
|p 1242 - 1251
|q 143<1242 - 1251
|0 PERI:(DE-600)2004346-6
|t Plant physiology
|v 143
|y 2007
|x 0032-0889
856 7 _ |2 Pubmed Central
|u http://www.ncbi.nlm.nih.gov/pmc/articles/PMC1820919
909 C O |o oai:juser.fz-juelich.de:56247
|p VDB
913 1 _ |k P24
|v Terrestrische Umwelt
|l Terrestrische Umwelt
|b Erde und Umwelt
|0 G:(DE-Juel1)FUEK407
|x 0
914 1 _ |y 2007
915 _ _ |0 StatID:(DE-HGF)0010
|a JCR/ISI refereed
920 1 _ |k ICG-3
|l Phytosphäre
|d 31.10.2010
|g ICG
|0 I:(DE-Juel1)ICG-3-20090406
|x 1
970 _ _ |a VDB:(DE-Juel1)88205
980 _ _ |a VDB
980 _ _ |a ConvertedRecord
980 _ _ |a journal
980 _ _ |a I:(DE-Juel1)IBG-2-20101118
980 _ _ |a UNRESTRICTED
981 _ _ |a I:(DE-Juel1)IBG-2-20101118
981 _ _ |a I:(DE-Juel1)ICG-3-20090406


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