Low levels of ribosomal RNA partly account for the very high photosynthetic phosphorus-use efficiency of Proteaceae species

Sulpice, R; Ishihara, H; Schlereth, A; Cawthray, GR; Encke, B; Giavalisco, P; Ivakov, A; Arrivault, S; Jost, R; Krohn, N; Kuo, J; Laliberté, E; Pearse, SJ; Raven, JA; Scheible, WR; Teste, F; Veneklaas, EJ; Stitt, M; Lambers, H

Low levels of ribosomal RNA partly account for the very high photosynthetic phosphorus-use efficiency of Proteaceae species

Sulpice, R Ishihara, H Schlereth, A Cawthray, GR Encke, B Giavalisco, P Ivakov, A Arrivault, S Jost, R Krohn, N Kuo, J Laliberté, E Pearse, SJ Raven, JA

Scheible, WR Teste, F Veneklaas, EJ Stitt, M Lambers, H

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Publication Type:: Journal Article
Citation:: Plant, Cell and Environment, 2014, 37 (6), pp. 1276 - 1298
Issue Date:: 2014-01-01

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Field	Value	Language
dc.contributor.author	Sulpice, R	en_US
dc.contributor.author	Ishihara, H	en_US
dc.contributor.author	Schlereth, A	en_US
dc.contributor.author	Cawthray, GR	en_US
dc.contributor.author	Encke, B	en_US
dc.contributor.author	Giavalisco, P	en_US
dc.contributor.author	Ivakov, A	en_US
dc.contributor.author	Arrivault, S	en_US
dc.contributor.author	Jost, R	en_US
dc.contributor.author	Krohn, N	en_US
dc.contributor.author	Kuo, J	en_US
dc.contributor.author	Laliberté, E	en_US
dc.contributor.author	Pearse, SJ	en_US
dc.contributor.author	Raven, JA https://orcid.org/0000-0002-2789-3297	en_US
dc.contributor.author	Scheible, WR	en_US
dc.contributor.author	Teste, F	en_US
dc.contributor.author	Veneklaas, EJ	en_US
dc.contributor.author	Stitt, M	en_US
dc.contributor.author	Lambers, H	en_US
dc.date.issued	2014-01-01	en_US
dc.identifier.citation	Plant, Cell and Environment, 2014, 37 (6), pp. 1276 - 1298	en_US
dc.identifier.issn	0140-7791	en_US
dc.identifier.uri	http://hdl.handle.net/10453/117834
dc.description.abstract	Proteaceae species in south-western Australia occur on phosphorus- (P) impoverished soils. Their leaves contain very low P levels, but have relatively high rates of photosynthesis. We measured ribosomal RNA (rRNA) abundance, soluble protein, activities of several enzymes and glucose 6-phosphate (Glc6P) levels in expanding and mature leaves of six Proteaceae species in their natural habitat. The results were compared with those for Arabidopsis thaliana. Compared with A.thaliana, immature leaves of Proteaceae species contained very low levels of rRNA, especially plastidic rRNA. Proteaceae species showed slow development of the photosynthetic apparatus ('delayed greening'), with young leaves having very low levels of chlorophyll and Calvin-Benson cycle enzymes. In mature leaves, soluble protein and Calvin-Benson cycle enzyme activities were low, but Glc6P levels were similar to those in A.thaliana. We propose that low ribosome abundance contributes to the high P efficiency of these Proteaceae species in three ways: (1) less P is invested in ribosomes; (2) the rate of growth and, hence, demand for P is low; and (3) the especially low plastidic ribosome abundance in young leaves delays formation of the photosynthetic machinery, spreading investment of P in rRNA. Although Calvin-Benson cycle enzyme activities are low, Glc6P levels are maintained, allowing their effective use. © 2013 The Authors. Plant, Cell & Environment published by John Wiley & Sons Ltd.	en_US
dc.relation.ispartof	Plant, Cell and Environment	en_US
dc.relation.isbasedon	10.1111/pce.12240	en_US
dc.subject.classification	Plant Biology & Botany	en_US
dc.subject.mesh	Arabidopsis	en_US
dc.subject.mesh	Proteaceae	en_US
dc.subject.mesh	Plant Leaves	en_US
dc.subject.mesh	Phosphorus	en_US
dc.subject.mesh	Chlorophyll	en_US
dc.subject.mesh	Starch	en_US
dc.subject.mesh	Glucose-6-Phosphate	en_US
dc.subject.mesh	Plant Proteins	en_US
dc.subject.mesh	Ribosomal Proteins	en_US
dc.subject.mesh	RNA, Plant	en_US
dc.subject.mesh	RNA, Ribosomal	en_US
dc.subject.mesh	Photosynthesis	en_US
dc.title	Low levels of ribosomal RNA partly account for the very high photosynthetic phosphorus-use efficiency of Proteaceae species	en_US
dc.type	Journal Article
utslib.citation.volume	6	en_US
utslib.citation.volume	37	en_US
utslib.for	060702 Plant Cell and Molecular Biology	en_US
utslib.for	06 Biological Sciences	en_US
utslib.for	07 Agricultural and Veterinary Sciences	en_US
pubs.embargo.period	Not known	en_US
pubs.organisational-group	/University of Technology Sydney
pubs.organisational-group	/University of Technology Sydney/Faculty of Science
utslib.copyright.status	closed_access
pubs.issue	6	en_US
pubs.publication-status	Published	en_US
pubs.volume	37	en_US

Abstract:

Proteaceae species in south-western Australia occur on phosphorus- (P) impoverished soils. Their leaves contain very low P levels, but have relatively high rates of photosynthesis. We measured ribosomal RNA (rRNA) abundance, soluble protein, activities of several enzymes and glucose 6-phosphate (Glc6P) levels in expanding and mature leaves of six Proteaceae species in their natural habitat. The results were compared with those for Arabidopsis thaliana. Compared with A.thaliana, immature leaves of Proteaceae species contained very low levels of rRNA, especially plastidic rRNA. Proteaceae species showed slow development of the photosynthetic apparatus ('delayed greening'), with young leaves having very low levels of chlorophyll and Calvin-Benson cycle enzymes. In mature leaves, soluble protein and Calvin-Benson cycle enzyme activities were low, but Glc6P levels were similar to those in A.thaliana. We propose that low ribosome abundance contributes to the high P efficiency of these Proteaceae species in three ways: (1) less P is invested in ribosomes; (2) the rate of growth and, hence, demand for P is low; and (3) the especially low plastidic ribosome abundance in young leaves delays formation of the photosynthetic machinery, spreading investment of P in rRNA. Although Calvin-Benson cycle enzyme activities are low, Glc6P levels are maintained, allowing their effective use. © 2013 The Authors. Plant, Cell & Environment published by John Wiley & Sons Ltd.

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http://hdl.handle.net/10453/117834