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Ribulose-1,5-bisphosphate carboxylase-oxygenase, other Calvin-cycle enzymes, and chlorophyll decrease when glucose is supplied to mature spinach leaves via the transpiration stream.
Krapp A, Quick WP, Stitt M. Krapp A, et al. Planta. 1991 Dec;186(1):58-69. doi: 10.1007/BF00201498. Planta. 1991. PMID: 24186575
The inhibition of photosynthesis was accompanied by a large decrease of glycerate-3-phosphate, an increase of triose-phosphates and fructose-1,6-bisphospate, and a small decrease of ribulose-1,5-bisphosphate. ...These results show (i) that accumulation of carbohydra …
The inhibition of photosynthesis was accompanied by a large decrease of glycerate-3-phosphate, an increase of triose-phosphates and f …
Decreased Rubisco activity leads to dramatic changes of nitrate metabolism, amino acid metabolism and the levels of phenylpropanoids and nicotine in tobacco antisense RBCS transformants.
Matt P, Krapp A, Haake V, Mock HP, Stitt M. Matt P, et al. Plant J. 2002 Jun;30(6):663-77. doi: 10.1046/j.1365-313x.2002.01323.x. Plant J. 2002. PMID: 12061898
Tobacco transformants that express an antisense RBCS construct were used to investigate the consequences of a lesion in photosynthetic carbon metabolism for nitrogen metabolism and secondary metabolism. ...In these conditions, a decrease of Rubisco activity led to a …
Tobacco transformants that express an antisense RBCS construct were used to investigate the consequences of a lesion in photosyntheti …
Growth of tobacco in short-day conditions leads to high starch, low sugars, altered diurnal changes in the Nia transcript and low nitrate reductase activity, and inhibition of amino acid synthesis.
Matt P, Schurr U, Klein D, Krapp A, Stitt M. Matt P, et al. Planta. 1998 Dec;207(1):27-41. doi: 10.1007/s004250050452. Planta. 1998. PMID: 9951717
Gatersleben) plants growing in a long (18 h light/6 h dark) and a short (6 h light/18 h dark) day growth regime, or after short-term changes in the light regime. ...Illumination led to a decrease in glutamate and an increase in the minor amino acids. A
Gatersleben) plants growing in a long (18 h light/6 h dark) and a short (6 h light/18 h dark) day growth regime, or after shor …
Disruption of the nitrate transporter genes AtNRT2.1 and AtNRT2.2 restricts growth at low external nitrate concentration.
Orsel M, Eulenburg K, Krapp A, Daniel-Vedele F. Orsel M, et al. Planta. 2004 Aug;219(4):714-21. doi: 10.1007/s00425-004-1266-x. Epub 2004 Apr 24. Planta. 2004. PMID: 15107992
The physiological impact of a disruption of AtNRT2.1 and AtNRT2.2 on plant growth and N-metabolism was investigated. The reduced nitrate uptake in the mutant under a limiting N-regime was found to correlate with a significant difference in shoot/root ratio be …
The physiological impact of a disruption of AtNRT2.1 and AtNRT2.2 on plant growth and N-metabolism was investigated. The reduced nitr …
Plant Nitrogen Acquisition Under Low Availability: Regulation of Uptake and Root Architecture.
Kiba T, Krapp A. Kiba T, et al. Plant Cell Physiol. 2016 Apr;57(4):707-14. doi: 10.1093/pcp/pcw052. Epub 2016 Mar 29. Plant Cell Physiol. 2016. PMID: 27025887 Free PMC article. Review.
Nitrogen availability is a major factor determining plant growth and productivity. Plants acquire nitrogen nutrients from the soil through their roots mostly in the form of ammonium and nitrate. ...
Nitrogen availability is a major factor determining plant growth and productivity. Plants acquire nitrogen nutrients from the soil th …
Plant nitrogen assimilation and its regulation: a complex puzzle with missing pieces.
Krapp A. Krapp A. Curr Opin Plant Biol. 2015 Jun;25:115-22. doi: 10.1016/j.pbi.2015.05.010. Epub 2015 Jun 1. Curr Opin Plant Biol. 2015. PMID: 26037390 Review.
Most steps of N transport and assimilation are tightly controlled by a regulatory network acting both cell-autonomously and systemically. ...
Most steps of N transport and assimilation are tightly controlled by a regulatory network acting both cell-autonomously and systemica …
Steps towards an integrated view of nitrogen metabolism.
Stitt M, Müller C, Matt P, Gibon Y, Carillo P, Morcuende R, Scheible WR, Krapp A. Stitt M, et al. J Exp Bot. 2002 Apr;53(370):959-70. doi: 10.1093/jexbot/53.370.959. J Exp Bot. 2002. PMID: 11912238 Review.
In a systematic search for other downstream regulators, a wide range of downstream metabolites was fed to detached leaves and glutamate, cysteine, asparagine, and malate identified as candidates. ...Moderate changes act post-transcriptionally, and larger changes lea …
In a systematic search for other downstream regulators, a wide range of downstream metabolites was fed to detached leaves and …
The Arabidopsis nitrate transporter NRT2.5 plays a role in nitrate acquisition and remobilization in nitrogen-starved plants.
Lezhneva L, Kiba T, Feria-Bourrellier AB, Lafouge F, Boutet-Mercey S, Zoufan P, Sakakibara H, Daniel-Vedele F, Krapp A. Lezhneva L, et al. Plant J. 2014 Oct;80(2):230-41. doi: 10.1111/tpj.12626. Epub 2014 Aug 25. Plant J. 2014. PMID: 25065551
Nitrogen is a key mineral nutrient playing a crucial role in plant growth and development. Understanding the mechanisms of nitrate uptake from the soil and distribution through the plant in response to nitrogen starvation is an important step on the way to improve n …
Nitrogen is a key mineral nutrient playing a crucial role in plant growth and development. Understanding the mechanisms of nit …
Arabidopsis roots and shoots show distinct temporal adaptation patterns toward nitrogen starvation.
Krapp A, Berthomé R, Orsel M, Mercey-Boutet S, Yu A, Castaings L, Elftieh S, Major H, Renou JP, Daniel-Vedele F. Krapp A, et al. Plant Physiol. 2011 Nov;157(3):1255-82. doi: 10.1104/pp.111.179838. Epub 2011 Sep 7. Plant Physiol. 2011. PMID: 21900481 Free PMC article.
Changes in the transcriptome confirmed earlier studies and added a new dimension by revealing specific spatiotemporal patterns and several unknown N starvation-regulated genes, including new predicted small RNA genes. ...In the context of a sustainable agriculture, …
Changes in the transcriptome confirmed earlier studies and added a new dimension by revealing specific spatiotemporal patterns and se …
The nodule inception-like protein 7 modulates nitrate sensing and metabolism in Arabidopsis.
Castaings L, Camargo A, Pocholle D, Gaudon V, Texier Y, Boutet-Mercey S, Taconnat L, Renou JP, Daniel-Vedele F, Fernandez E, Meyer C, Krapp A. Castaings L, et al. Plant J. 2009 Feb;57(3):426-35. doi: 10.1111/j.1365-313X.2008.03695.x. Epub 2008 Sep 26. Plant J. 2009. PMID: 18826430
We show that nlp7 mutants are impaired in transduction of the nitrate signal, and that the NLP7 expression pattern is consistent with a function of NLP7 in the sensing of nitrogen. Translational fusions with GFP showed a nuclear localization for the NLP7 putative tr …
We show that nlp7 mutants are impaired in transduction of the nitrate signal, and that the NLP7 expression pattern is consistent with a
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