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231224s2015 xx |||||o 00| ||eng c |
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|a 10.1111/nph.13484
|2 doi
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|a pubmed24n0831.xml
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|a (NLM)26017819
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|a DE-627
|b ger
|c DE-627
|e rakwb
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|a eng
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| 100 |
1 |
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|a Alam, Md Azharul
|e verfasserin
|4 aut
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| 245 |
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|a Soluble carbohydrates and relative growth rates in chloro-, cyano- and cephalolichens
|b effects of temperature and nocturnal hydration
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|c 2015
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|a Text
|b txt
|2 rdacontent
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|a ƒaComputermedien
|b c
|2 rdamedia
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|a ƒa Online-Ressource
|b cr
|2 rdacarrier
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|a Date Completed 15.08.2016
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|a Date Revised 11.03.2022
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|a published: Print-Electronic
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|a Citation Status MEDLINE
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|a © 2015 The Authors. New Phytologist © 2015 New Phytologist Trust.
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|a This growth chamber experiment evaluates how temperature and humidity regimes shape soluble carbohydrate pools and growth rates in lichens with different photobionts. We assessed soluble carbohydrates, relative growth rates (RGRs) and relative thallus area growth rates (RTA GRs) in Parmelia sulcata (chlorolichen), Peltigera canina (cyanolichen) and Peltigera aphthosa (cephalolichen) cultivated for 14 d (150 μmol m(-2) s(-1) ; 12-h photoperiod) at four day : night temperatures (28 : 23°C, 20 : 15°C, 13 : 8°C, 6 : 1°C) and two hydration regimes (hydration during the day, dry at night; hydration day : night). The major carbohydrates were mannitol (cephalolichen), glucose (cyanolichen) and arabitol (chlorolichen). Mannitol occurred in all species. During cultivation, total carbohydrate pools decreased in cephalo-/cyanolichens, but increased in the chlorolichen. Carbohydrates varied less than growth with temperature and humidity. All lichens grew rapidly, particularly at 13 : 8°C. RGRs and RTA GRs were significantly higher in lichens hydrated for 24 h than for 12 h. Strong photoinhibition occurred in cephalo- and cyanolichens kept in cool dry nights, resulting in positive relationships between RGR and dark-adapted photosystem II (PSII) efficiency (Fv /Fm ). RGR increased significantly with the photobiont-specific carbohydrate pools within all species. Average RGR peaked in the chlorolichen lowest in total and photobiont carbohydrates. Nocturnal hydration improved recovery from photoinhibition and/or enhanced conversion rates of photosynthates into growth
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|a Comparative Study
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|a Journal Article
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|a Parmelia sulcata
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| 650 |
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4 |
|a Peltigera aphthosa
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| 650 |
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|a Peltigera canina
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4 |
|a hydration regime
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| 650 |
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|a photoinhibition
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| 650 |
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4 |
|a polyols
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| 650 |
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|a relative growth rate (RGR)
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| 650 |
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|a temperature
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| 650 |
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|a Chlorophyll
|2 NLM
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| 650 |
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|a 1406-65-1
|2 NLM
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| 700 |
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|a Gauslaa, Yngvar
|e verfasserin
|4 aut
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| 700 |
1 |
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|a Solhaug, Knut Asbjørn
|e verfasserin
|4 aut
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| 773 |
0 |
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|i Enthalten in
|t The New phytologist
|d 1979
|g 208(2015), 3 vom: 19. Nov., Seite 750-62
|w (DE-627)NLM09818248X
|x 1469-8137
|7 nnns
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| 773 |
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|g volume:208
|g year:2015
|g number:3
|g day:19
|g month:11
|g pages:750-62
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|u http://dx.doi.org/10.1111/nph.13484
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|d 208
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