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000049905 0247_ $$2DOI$$a10.1007/s00425-005-0181-0
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000049905 084__ $$2WoS$$aPlant Sciences
000049905 1001_ $$0P:(DE-Juel1)129358$$aMatsubara, S.$$b0$$uFZJ
000049905 245__ $$aNocturnal changes in leaf growth of Populus deltoides are controlled by cytoplasmic growth
000049905 260__ $$aBerlin$$bSpringer$$c2006
000049905 300__ $$a1315 - 1328
000049905 3367_ $$0PUB:(DE-HGF)16$$2PUB:(DE-HGF)$$aJournal Article
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000049905 520__ $$aGrowing leaves do not expand at a constant rate but exhibit pronounced diel growth rhythms. However, the mechanisms giving rise to distinct diel growth dynamics in different species are still largely unknown. As a first step towards identifying genes controlling rate and timing of leaf growth, we analysed the transcriptomes of rapidly expanding and fully expanded leaves of Populus deltoides Bartr. ex. Marsh at points of high and low expansion at night. Tissues with well defined temporal growth rates were harvested using an online growth-monitoring system based on a digital image sequence processing method developed for quantitative mapping of dicot leaf growth. Unlike plants studied previously, leaf growth in P. deltoides was characterised by lack of a base-tip gradient across the lamina, and by maximal and minimal growth at dusk and dawn, respectively. Microarray analysis revealed that the nocturnal decline in growth coincided with a concerted down-regulation of ribosomal protein genes, indicating deceleration of cytoplasmic growth. In a subsequent time-course experiment, Northern blotting and real-time RT-PCR confirmed that the ribosomal protein gene RPL12 and a cell-cycle gene H2B were down-regulated after midnight following a decrease in cellular carbohydrate concentrations. Thus, we propose that the spatio-temporal growth pattern in leaves of P. deltoides primarily arises from cytoplasmic growth whose activity increases from afternoon to midnight and thereafter decreases in this species.
000049905 536__ $$0G:(DE-Juel1)FUEK407$$2G:(DE-HGF)$$aTerrestrische Umwelt$$cP24$$x0
000049905 588__ $$aDataset connected to Web of Science, Pubmed
000049905 650_2 $$2MeSH$$aCarbohydrate Metabolism
000049905 650_2 $$2MeSH$$aCircadian Rhythm
000049905 650_2 $$2MeSH$$aCluster Analysis
000049905 650_2 $$2MeSH$$aCytoplasm: physiology
000049905 650_2 $$2MeSH$$aDarkness
000049905 650_2 $$2MeSH$$aGene Expression Profiling
000049905 650_2 $$2MeSH$$aGene Expression Regulation, Plant
000049905 650_2 $$2MeSH$$aGenes, Plant
000049905 650_2 $$2MeSH$$aHistones: genetics
000049905 650_2 $$2MeSH$$aHistones: metabolism
000049905 650_2 $$2MeSH$$aOligonucleotide Array Sequence Analysis
000049905 650_2 $$2MeSH$$aPlant Leaves: cytology
000049905 650_2 $$2MeSH$$aPlant Leaves: growth & development
000049905 650_2 $$2MeSH$$aPlant Proteins: genetics
000049905 650_2 $$2MeSH$$aPlant Proteins: metabolism
000049905 650_2 $$2MeSH$$aPopulus: cytology
000049905 650_2 $$2MeSH$$aPopulus: growth & development
000049905 650_2 $$2MeSH$$aRibosomal Proteins: genetics
000049905 650_2 $$2MeSH$$aRibosomal Proteins: metabolism
000049905 650_7 $$00$$2NLM Chemicals$$aHistones
000049905 650_7 $$00$$2NLM Chemicals$$aPlant Proteins
000049905 650_7 $$00$$2NLM Chemicals$$aRibosomal Proteins
000049905 650_7 $$2WoSType$$aJ
000049905 65320 $$2Author$$acell cycle
000049905 65320 $$2Author$$acytoplasmic growth
000049905 65320 $$2Author$$aleaf growth
000049905 65320 $$2Author$$amicroarray
000049905 65320 $$2Author$$aPopulus
000049905 65320 $$2Author$$aribosomal protein
000049905 7001_ $$0P:(DE-HGF)0$$aHurry, V.$$b1
000049905 7001_ $$0P:(DE-HGF)0$$aDruart, N.$$b2
000049905 7001_ $$0P:(DE-HGF)0$$aBenedict, C.$$b3
000049905 7001_ $$0P:(DE-Juel1)129338$$aJanzik, I.$$b4$$uFZJ
000049905 7001_ $$0P:(DE-Juel1)VDB33618$$aChavarria-Krauser, A.$$b5$$uFZJ
000049905 7001_ $$0P:(DE-Juel1)VDB2595$$aWalter, A.$$b6$$uFZJ
000049905 7001_ $$0P:(DE-Juel1)129402$$aSchurr, U.$$b7$$uFZJ
000049905 773__ $$0PERI:(DE-600)1463030-8$$a10.1007/s00425-005-0181-0$$gVol. 223, p. 1315 - 1328$$p1315 - 1328$$q223<1315 - 1328$$tPlanta$$v223$$x0032-0935$$y2006
000049905 8567_ $$uhttp://dx.doi.org/10.1007/s00425-005-0181-0
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