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(Reference retrieved automatically from Web of Science through information on FAPESP grant and its corresponding number as mentioned in the publication by the authors.)

hedding Light on the Dynamic Role of the ``Target of Rapamycin{''} Kinase in the Fast-Growing C-4 Species Setaria viridis, a Suitable Model for Biomass Crop

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da Silva, Viviane Cristina Heinzen [1, 2] ; Martins, Marina C. M. [3, 1] ; Calderan-Rodrigues, Maria Juliana [4, 1] ; Artins, Anthony [4] ; Monte Bello, Carolina Cassano [4, 1] ; Gupta, Saurabh [4, 5] ; Sobreira, Tiago J. P. [6] ; Riano-Pachon, Diego Mauricio [7, 1] ; Mafra, Valeria [1] ; Caldana, Camila [4, 1]
Total Authors: 10
[1] Natl Ctr Res Energy & Mat CNPEM, Campinas - Brazil
[2] Univ Estadual Campinas UNICAMP, Ctr Biol Mol & Engn Genet CBMEG, Ctr Quim Med CQMED, Genom Climate Change Res Ctr GCCRC, Campinas - Brazil
[3] Univ Sao Paulo, Inst Biociencias, Dept Bot, Lab Fisiol Ecol Plantas LAFIECO, Sao Paulo - Brazil
[4] Max Planck Inst Mol Plant Physiol, Potsdam - Germany
[5] Univ Potsdam, Inst Biochem & Biol, Potsdam - Germany
[6] Purdue Univ, Bindley Biosci Ctr, W Lafayette, IN 47907 - USA
[7] Univ Sao Paulo, Ctr Nucl Energy Agr, Piracicaba - Brazil
Total Affiliations: 7
Document type: Journal article
Source: FRONTIERS IN PLANT SCIENCE; v. 12, APR 13 2021.
Web of Science Citations: 1

The Target of Rapamycin (TOR) kinase pathway integrates energy and nutrient availability into metabolism promoting growth in eukaryotes. The overall higher efficiency on nutrient use translated into faster growth rates in C-4 grass plants led to the investigation of differential transcriptional and metabolic responses to short-term chemical TOR complex (TORC) suppression in the model Setaria viridis. In addition to previously described responses to TORC inhibition (i.e., general growth arrest, translational repression, and primary metabolism reprogramming) in Arabidopsis thaliana (C-3), the magnitude of changes was smaller in S. viridis, particularly regarding nutrient use efficiency and C allocation and partitioning that promote biosynthetic growth. Besides photosynthetic differences, S. viridis and A. thaliana present several specificities that classify them into distinct lineages, which also contribute to the observed alterations mediated by TOR. Indeed, cell wall metabolism seems to be distinctly regulated according to each cell wall type, as synthesis of non-pectic polysaccharides were affected in S. viridis, whilst assembly and structure in A. thaliana. Our results indicate that the metabolic network needed to achieve faster growth seems to be less stringently controlled by TORC in S. viridis. (AU)

FAPESP's process: 12/19561-0 - Regulation of plant growth by the Target of rapamycin (TOR) pathway
Grantee:Camila Caldana
Support Opportunities: Program for Research on Bioenergy (BIOEN) - Young Investigators Grants
FAPESP's process: 14/10407-3 - Cross-talk between the Target of Rapamycin (TOR) pathway and energetic metabolism in plants
Grantee:Carolina Cassano Monte Bello
Support Opportunities: Scholarships in Brazil - Doctorate
FAPESP's process: 14/07918-6 - Functional characterization of the Target of Rapamycin (TOR) gene using Setaria as the model plant: dissecting the role of TOR pathway regulating growth and metabolism in C4 plants
Grantee:Valéria Mafra Cota
Support Opportunities: Scholarships in Brazil - Post-Doctoral