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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.)

NDP-Sugar Pathways Overview of Spirodela polyrhiza and Their Relevance for Bioenergy and Biorefinery

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Author(s):
Pagliuso, Debora [1] ; Navarro, Bruno Viana [1] ; Grandis, Adriana [1] ; Zerillo, Marcelo M. [2] ; Lam, Eric [3] ; Buckeridge, Marcos Silveira [1]
Total Authors: 6
Affiliation:
[1] Univ Sao Paulo, Inst Biosci, Dept Bot, Lab Plant Physiol Ecol, Sao Paulo - Brazil
[2] Univ Sao Paulo, Inst Biosci, Dept Bot, GaTE Lab, Sao Paulo - Brazil
[3] Rutgers State Univ, Dept Plant Biol & Pathol, New Brunswick, NJ - USA
Total Affiliations: 3
Document type: Journal article
Source: BioEnergy Research; JAN 2022.
Web of Science Citations: 0
Abstract

Duckweeds are fast-growing aquatic plants suitable for bioenergy due to fermentable-rich biomass with low lignin and unique cell wall. The plant cell wall is built from pathways of nucleotide sugar genes that culminate in cell wall synthesis and deposition. Therefore, understanding these pathways by mapping the genes involved and their expression would be necessary for developing tools to improve bioenergy production. In this work, the genes associated with the NDP-sugar pathway (de novo and salvage) were mapped and correlated to the chemical characterization of the giant duckweed (Spirodela polyrhiza) cell wall. This plant biomass has been characterized as having 3% starch, 49% soluble sugars, 40% cell wall, and 8% non-measured compounds. The cell walls are synthesized by the NDP-sugar pathway and represent a significant carbon sink. This sink results from the action of proteins encoded by 190 orthologs of the 38 targets of the NDP-sugar pathway, of which 49 are starch and sucrose-related, 54 pectins-related, 65 hemicellulose-related, and 23 cellulose-related. Chemical analysis of the cell wall revealed 49% pectins, 23% hemicellulose, and 10% cellulose. These carbohydrates can potentially provide biorefinery as adjuvants, cosmetics, food additives, stabilizers, gelling agents, and principally as biofuels. (AU)

FAPESP's process: 19/13936-0 - The role of xyloglucan in the cell wall architecture determination in sugarcane
Grantee:Adriana Grandis
Support Opportunities: Scholarships in Brazil - Post-Doctoral
FAPESP's process: 14/50884-5 - INCT 2014: National Institute of Science and Technology of Bioethanol
Grantee:Marcos Silveira Buckeridge
Support Opportunities: Research Projects - Thematic Grants