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ABSTRACT: Long-term N fertilization in wheat-sweetpotato rotation improves the availability of phosphorus by mobilizing inorganic phosphorus and regulating pqqC-harboring bacterial communities

PROVIDER: PRJNA1007271 | ENA |

REPOSITORIES: ENA

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			Action	DRS
	SRR25728400_1.fastq.gz	Fastqsanger.gz
	SRR25728400_2.fastq.gz	Fastqsanger.gz
	SRR25728401_1.fastq.gz	Fastqsanger.gz
	SRR25728401_2.fastq.gz	Fastqsanger.gz
	SRR25728402_1.fastq.gz	Fastqsanger.gz

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Vertical Stratification of P Pools in Subtropical Plantation Soils under Fertilization and Dry–Season Irrigation: Multiomics Regulatory Strategies

Project description:The rapid expansion of fast-growing plantations in subtropical regions is closely linked to dry-season irrigation and fertilization; however, improper practices often lead to soil acidification and reduced nutrient bioavailability. Phosphorus (P), one of the most critical elements for plantation tree growth, shows complex spatial distribution patterns in soil that are influenced by multiple factors, directly affecting plantation productivity. This study investigated the effects of long-term fertilization and dry-season irrigation on the vertical distribution of phosphorus in an 8-year-old subtropical Eucalyptus plantation. This study employed stratified sampling (0–30 cm topsoil, 30–60 cm subsoil, 60–90 cm substratum) during dry seasons, coupled with metagenomics, metabolomics, and environmental factor analysis, to reveal vertical phosphorus cycling patterns and multiomics regulatory networks. Key findings: (1) Fertilization and dry-season irrigation had a limited influence on labile phosphorus and the diversity of P-cycling microorganisms. The topsoil presented significantly greater P availability than did the subsoil, manifested as elevated acid phosphatase activity (ACP), significant enrichment of the tryptophan metabolic pathway, and greater microbial diversity. (2) pH and the C:P ratio represent critical factors of vertical stratification in soil P cycling. Under acidic conditions, topsoil microorganisms facilitate P release via diverse metabolic pathways, whereas oligotrophic constraints in the substratum limit enzymatic activities. (3) We believe that potential cross-stratum microbial functional coordination exists in acidic soil P cycling, with linkages to tryptophan metabolism and polyP synthesis/degradation. Our study provides theoretical multiomics insights for optimizing the management of soil P pools in subtropical plantations under fertilization and dry-season irrigation.

2025-12-09 | PXD070738 | Pride

Project description:Effects of phosphorus-mobilizing bacteria on tomato growth

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Combining P and Zn fertilization to enhance yield, grain Zn availability and protein profile in maize grown on Mediterranean soils

Project description:Alkaline soils such as those found in some Mediterranean areas typically have a low phosphorus (P) and zinc (Zn) phytoavailability that detracts from plant growth and yield. We examined the effects of P and Zn fertilization individually and in combination on growth, yield and grain protein content in maize grown in pots filled with three Mediterranean soils. P and Zn translocation was impaired, and yield reduced by 8–85%, in plants treated with Zn or P alone. In contrast, joint fertilization with P and Zn enhanced translocation to grain and nutrient use efficiency, thereby increasing plant growth, yield (31–121%) and grain Zn availability. Fertilization with P or Zn also influenced the abundance of specific proteins affecting grain quality (viz., storage, lys-rich and cell wall proteins), which were more abundant in mature grains from plants fertilized with Zn alone and, to a lesser extent, P + Zn.

2021-09-09 | PXD021503 | Pride

Project description:soil inorganic phosphorus mineralizing microbes (PhoD)

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Project description:Short-term of nitrogen addition improves soil phosphorus availability by regulating phosphorus-cycling microbial communities in a karst forest

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Temporal patterns of gene expression associated with tuberous root formation and development in sweetpotato (Ipomoea batatas)

Project description:Investigation of whole transcriptome gene expression level during tuberous root formation and development in sweetpotato (Ipomoea batatas) cv. Guangshu 87 Identification of transcription factors (TFs) during tuberous root formation and development in sweetpotato (Ipomoea batatas) cv. Guangshu 87 A total of 7 samples were analyzed using RNA isolated from sweetpotato roots at 10, 15, 20, 30, 60, 90, 120days after transplanting. Each sample had two biological replicates.

2015-07-12 | E-GEOD-48834 | biostudies-arrayexpress

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