Leaf carbohydrate controls over Arabidopsis growth and response to elevated CO2 : an experimentally based model

Transient starch production is thought to strongly control plant growth and response to elevated CO2. We tested this hypothesis with an experimentally based mechanistic model in Arabidopsis thaliana. Experiments were conducted on wild-type (WT) A. thaliana, starch-excess (sex1) and starchless (pgm)...

Ausführliche Beschreibung

Bibliographische Detailangaben
Veröffentlicht in:The New phytologist. - 1979. - 172(2006), 3 vom: 15., Seite 500-13
1. Verfasser: Rasse, Daniel P (VerfasserIn)
Weitere Verfasser: Tocquin, Pierre
Format: Aufsatz
Sprache:English
Veröffentlicht: 2006
Zugriff auf das übergeordnete Werk:The New phytologist
Schlagworte:Journal Article Research Support, Non-U.S. Gov't Arabidopsis Proteins Carbohydrates Monosaccharide Transport Proteins Carbon Dioxide 142M471B3J Sucrose 57-50-1 Starch mehr... 9005-25-8 SEX1 protein, Arabidopsis EC 2.7.9.-
LEADER 01000naa a22002652 4500
001 NLM16638724X
003 DE-627
005 20231223110709.0
007 tu
008 231223s2006 xx ||||| 00| ||eng c
028 5 2 |a pubmed24n0555.xml 
035 |a (DE-627)NLM16638724X 
035 |a (NLM)17083680 
040 |a DE-627  |b ger  |c DE-627  |e rakwb 
041 |a eng 
100 1 |a Rasse, Daniel P  |e verfasserin  |4 aut 
245 1 0 |a Leaf carbohydrate controls over Arabidopsis growth and response to elevated CO2  |b an experimentally based model 
264 1 |c 2006 
336 |a Text  |b txt  |2 rdacontent 
337 |a ohne Hilfsmittel zu benutzen  |b n  |2 rdamedia 
338 |a Band  |b nc  |2 rdacarrier 
500 |a Date Completed 12.01.2007 
500 |a Date Revised 30.09.2020 
500 |a published: Print 
500 |a Citation Status MEDLINE 
520 |a Transient starch production is thought to strongly control plant growth and response to elevated CO2. We tested this hypothesis with an experimentally based mechanistic model in Arabidopsis thaliana. Experiments were conducted on wild-type (WT) A. thaliana, starch-excess (sex1) and starchless (pgm) mutants under ambient and elevated CO2 conditions to determine parameters and validate the model. The model correctly predicted that mutant growth is approx. 20% of that in WT, and the absolute response of both mutants to elevated CO2 is an order of magnitude lower than in WT. For sex1, direct starch unavailability explained the growth responses. For pgm, we demonstrated experimentally that maintenance respiration is proportional to leaf soluble sugar concentration, which gave the necessary feedback mechanism on modelled growth. Our study suggests that the effects of sugar-starch cycling on growth can be explained by simple allocation processes, and the maximum rate of leaf growth (sink capacity) exerts a strong control over the response to elevated CO2 of herbaceous plants such as A. thaliana 
650 4 |a Journal Article 
650 4 |a Research Support, Non-U.S. Gov't 
650 7 |a Arabidopsis Proteins  |2 NLM 
650 7 |a Carbohydrates  |2 NLM 
650 7 |a Monosaccharide Transport Proteins  |2 NLM 
650 7 |a Carbon Dioxide  |2 NLM 
650 7 |a 142M471B3J  |2 NLM 
650 7 |a Sucrose  |2 NLM 
650 7 |a 57-50-1  |2 NLM 
650 7 |a Starch  |2 NLM 
650 7 |a 9005-25-8  |2 NLM 
650 7 |a SEX1 protein, Arabidopsis  |2 NLM 
650 7 |a EC 2.7.9.-  |2 NLM 
700 1 |a Tocquin, Pierre  |e verfasserin  |4 aut 
773 0 8 |i Enthalten in  |t The New phytologist  |d 1979  |g 172(2006), 3 vom: 15., Seite 500-13  |w (DE-627)NLM09818248X  |x 1469-8137  |7 nnns 
773 1 8 |g volume:172  |g year:2006  |g number:3  |g day:15  |g pages:500-13 
912 |a GBV_USEFLAG_A 
912 |a SYSFLAG_A 
912 |a GBV_NLM 
912 |a GBV_ILN_350 
951 |a AR 
952 |d 172  |j 2006  |e 3  |b 15  |h 500-13