• Je něco špatně v tomto záznamu ?

C4 plants use fluctuating light less efficiently than do C3 plants: a study of growth, photosynthesis and carbon isotope discrimination

J. Kubásek, O. Urban, J. Šantrůček,

. 2013 ; 149 (4) : 528-39. [pub] 20130424

Jazyk angličtina Země Dánsko

Typ dokumentu časopisecké články

Perzistentní odkaz   https://www.medvik.cz/link/bmc17014331

Plants in the field are commonly exposed to fluctuating light intensity, caused by variable cloud cover, self-shading of leaves in the canopy and/or leaf movement due to turbulence. In contrast to C3 plant species, only little is known about the effects of dynamic light (DL) on photosynthesis and growth in C4 plants. Two C4 and two C3 monocot and eudicot species were grown under steady light or DL conditions with equal sum of daily incident photon flux. We measured leaf gas exchange, plant growth and dry matter carbon isotope discrimination to infer CO2 bundle sheath leakiness in C4 plants. The growth of all species was reduced by DL, despite only small changes in steady-state gas exchange characteristics, and this effect was more pronounced in C4 than C3 species due to lower assimilation at light transitions. This was partially attributed to increased bundle sheath leakiness in C4 plants under the simulated lightfleck conditions. We hypothesize that DL leads to imbalances in the coordination of C4 and C3 cycles and increasing leakiness, thereby decreasing the quantum efficiency of photosynthesis. In addition to their other constraints, the inability of C4 plants to efficiently utilize fluctuating light likely contributes to their absence in such environments as forest understoreys.

Citace poskytuje Crossref.org

000      
00000naa a2200000 a 4500
001      
bmc17014331
003      
CZ-PrNML
005      
20170426094205.0
007      
ta
008      
170413s2013 dk f 000 0|eng||
009      
AR
024    7_
$a 10.1111/ppl.12057 $2 doi
035    __
$a (PubMed)23550566
040    __
$a ABA008 $b cze $d ABA008 $e AACR2
041    0_
$a eng
044    __
$a dk
100    1_
$a Kubásek, Jiří $u Global Change Research Centre, Academy of Sciences of the Czech Republic, Brno, Czech Republic. The University of South Bohemia, Faculty of Science, CZ-370 05, České Budějovice, Czech Republic.
245    10
$a C4 plants use fluctuating light less efficiently than do C3 plants: a study of growth, photosynthesis and carbon isotope discrimination / $c J. Kubásek, O. Urban, J. Šantrůček,
520    9_
$a Plants in the field are commonly exposed to fluctuating light intensity, caused by variable cloud cover, self-shading of leaves in the canopy and/or leaf movement due to turbulence. In contrast to C3 plant species, only little is known about the effects of dynamic light (DL) on photosynthesis and growth in C4 plants. Two C4 and two C3 monocot and eudicot species were grown under steady light or DL conditions with equal sum of daily incident photon flux. We measured leaf gas exchange, plant growth and dry matter carbon isotope discrimination to infer CO2 bundle sheath leakiness in C4 plants. The growth of all species was reduced by DL, despite only small changes in steady-state gas exchange characteristics, and this effect was more pronounced in C4 than C3 species due to lower assimilation at light transitions. This was partially attributed to increased bundle sheath leakiness in C4 plants under the simulated lightfleck conditions. We hypothesize that DL leads to imbalances in the coordination of C4 and C3 cycles and increasing leakiness, thereby decreasing the quantum efficiency of photosynthesis. In addition to their other constraints, the inability of C4 plants to efficiently utilize fluctuating light likely contributes to their absence in such environments as forest understoreys.
650    _2
$a Amaranthaceae $x růst a vývoj $x fyziologie $x účinky záření $7 D027703
650    _2
$a oxid uhličitý $x metabolismus $7 D002245
650    _2
$a izotopy uhlíku $x analýza $7 D002247
650    _2
$a světlo $7 D008027
650    _2
$a fotony $7 D017785
650    12
$a fotosyntéza $7 D010788
650    _2
$a listy rostlin $x růst a vývoj $x fyziologie $x účinky záření $7 D018515
650    _2
$a transpirace rostlin $7 D018526
650    _2
$a lipnicovité $x růst a vývoj $x fyziologie $x účinky záření $7 D006109
655    _2
$a časopisecké články $7 D016428
700    1_
$a Urban, Otmar $u Global Change Research Centre, Academy of Sciences of the Czech Republic, Brno, Czech Republic.
700    1_
$a Šantrůček, Jiří $u The University of South Bohemia, Faculty of Science, CZ-370 05, České Budějovice, Czech Republic. Biology Centre, Academy of Sciences of the Czech Republic, Institute of Plant Molecular Biology, CZ-370 05, České Budějovice, Czech Republic.
773    0_
$w MED00005316 $t Physiologia plantarum $x 1399-3054 $g Roč. 149, č. 4 (2013), s. 528-39
856    41
$u https://pubmed.ncbi.nlm.nih.gov/23550566 $y Pubmed
910    __
$a ABA008 $b sig $c sign $y a $z 0
990    __
$a 20170413 $b ABA008
991    __
$a 20170426094524 $b ABA008
999    __
$a ok $b bmc $g 1200796 $s 975109
BAS    __
$a 3
BAS    __
$a PreBMC
BMC    __
$a 2013 $b 149 $c 4 $d 528-39 $e 20130424 $i 1399-3054 $m Physiologia plantarum $n Physiol Plant $x MED00005316
LZP    __
$a Pubmed-20170413
Zpět

Najít záznam

Citační ukazatele

Možnosti archivace