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A lignin-derived material improves plant nutrient bioavailability and growth through its metal chelating capacity

ABSTRACT: A lignin-derived material improves plant nutrient bioavailability and growth through its metal chelating capacity

PROVIDER: PRJNA930378 | ENA |

REPOSITORIES: ENA

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			Action	DRS
	SRR23302049_1.fastq.gz	Fastqsanger.gz
	SRR23302049_2.fastq.gz	Fastqsanger.gz
	SRR23302050_1.fastq.gz	Fastqsanger.gz
	SRR23302050_2.fastq.gz	Fastqsanger.gz
	SRR23302051_1.fastq.gz	Fastqsanger.gz

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A lignin-derived material improves plant nutrient bioavailability and growth through its metal chelating capacity

Project description:To pinpoint the molecular and biological processes that are targeted by HSAL and lead to enhanced root growth in nutrient poor environments. We performed a genome-wide transcript analysis of the root tip of 7-day-old seedlings treated with or without HSAL for 12 h using RNA-seq.

2023-07-04 | GSE224234 | GEO

A lignin-derived material improves plant nutrient bioavailability and growth through its metal chelating capacity.

Project description:The lignocellulosic biorefinery industry can be an important contributor to achieving global carbon net zero goals. However, low valorization of the waste lignin severely limits the sustainability of biorefineries. Using a hydrothermal reaction, we have converted sulfuric acid lignin (SAL) into a water-soluble hydrothermal SAL (HSAL). Here, we show the improvement of HSAL on plant nutrient bioavailability and growth through its metal chelating capacity. We characterize HSAL's high ratio of phenolic hydroxyl groups to methoxy groups and its capacity to chelate metal ions. Application of HSAL significantly promotes root length and plant growth of both monocot and dicot plant species due to improving nutrient bioavailability. The HSAL-mediated increase in iron bioavailability is comparable to the well-known metal chelator ethylenediaminetetraacetic acid. Therefore, HSAL promises to be a sustainable nutrient chelator to provide an attractive avenue for sustainable utilization of the waste lignin from the biorefinery industry.

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Multi-time series RNA-Seq analysis of Enterobacter lignolyticus SCF1during growth in lignin-amended medium

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Intracellular pathways for lignin catabolism in white-rot fungi

Project description:Lignin is a biopolymer found in plant cell walls that accounts for 30% of the organic carbon in the biosphere. White-rot fungi (WRF) are considered the most efficient organisms at degrading lignin in Nature. While lignin depolymerization by WRF has been exhaustively studied, the possibility that WRF are able to utilize lignin as a carbon source is still a matter of controversy. Here we employ 13C-labeling and systems biology approaches to demonstrate that two WRF, Trametes versicolor and Gelatoporia subvermispora, funnel lignin-derived aromatic compounds into central carbon metabolism via intracellular catabolic pathways. These results provide insights into global carbon cycling in soil ecosystems, and furthermore establishes a foundation for employing WRF in simultaneous lignin depolymerization and bioconversion to bioproducts – a key step towards enabling a sustainable bioeconomy.

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Flexible wood caused by altered lignin, following viral-induced suppression of phenylalanine ammonia lyase (PAL) activity. sRNA-seq

Project description:Woody plant material represents a renewable resource that has the potential to produce biofuels and/or novel materials with greatly reduced CO2 emissions. The study of viral infection in plants has largely focussed on detrimental symptoms, such as leaf yellowing or cell death that result in reduced crop yields. Apple rubbery wood (ARW) disease is the result of a viral infection that causes woody stems to exhibit increased flexibility. Biochemical and histochemical studies suggest the phenotype is a result of reduced lignification, specifically within the fibre cells of woody xylem. Expression analysis and proteomic data suggests that the downregulation of phenylalanine ammonia lyase (PAL) is responsible for decreased lignification. PAL is required for the first committed step in the phenylpropanoid pathway that leads to lignin biosynthesis. This is consistent with a large increase in soluble phenolics, including the lignin precursor phenylalanine, in symptomatic xylem. Downregulation of PAL appears to result from a widespread siRNA induction by the infected host, triggered by the virus. Symptomatic wood exhibited increased digestibility comparable to those seen in genetically engineered plants that alter lignin biosynthesis. To our knowledge this is the first example of a virus that alters lignin metabolism and offers a unique route to address the problem of the recalcitrant nature of plant biomass and a possible route to generating wood with altered mechanical properties.

2023-01-12 | E-MTAB-11409 | biostudies-arrayexpress

Flexible wood caused by altered lignin, following viral-induced suppression of phenylalanine ammonia lyase (PAL) activity. RNA-seq

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