Seasonal succession, host associations and biochemical roles of aquatic viruses in a eutrophic lake plagued by cyanobacterial blooms DOI Creative Commons
Ling Yuan, Pingfeng Yu, Xinyu Huang

et al.

Environment International, Journal Year: 2024, Volume and Issue: 193, P. 109125 - 109125

Published: Nov. 1, 2024

Viruses are implicated to play key roles as biogeochemical mediators and ecological drivers in freshwater ecosystems. However, the dynamics of viruses host associations throughout seasons during blooming periods eutrophic ecosystems remain poorly understood. From water microbiomes planktonic biomass from Lake Taihu, a large lake China that experiences annual Microcystis-dominated harmful algal blooms (HABs), we recovered 41,997 unique viral clusters spanning wide taxonomic range, including 15,139 Caudovirales targeting bacteria 1,044 NCLDV eukaryotes. The community exhibited clear seasonal succession, driven primarily by microbial communities (particularly Cyanobacteria Planctomycetes) environmental factors (mainly nutrients temperature). Host prediction revealed infection had more distinct impact on bacteria-driven nitrogen pathways than phosphate cycling. HAB-induced variations composition conditions affected strategies lifestyles, virus-encoded auxiliary metabolic genes (vAMGs) distributions. infecting Proteobacteria Actinobacteria showed an enhanced lysogenic lifestyle narrower range HAB peak summer, while Bacteroidota adopted opposite strategy. Notably, vAMGs were most abundant before outbreak spring, compensating for bacterial processes their hosts such carbohydrates metabolism, photosynthesis, regulation. findings highlight intricate relationships between viruses, microbes, bloom-associated environment, underscoring important biochemical

Language: Английский

Natural variation in the GmVPE1 promoter contributes to phosphorus re‐translocation to seeds and improves soybean yield DOI Creative Commons
Jiaxin Chen, Wenting Lian,

Z. Li

et al.

Plant Biotechnology Journal, Journal Year: 2025, Volume and Issue: unknown

Published: Jan. 16, 2025

Phosphorus (P) is an essential yet frequently deficient plant nutrient. Optimizing P distribution and recycling between tissues vital for improving utilization efficiency (PUE). Yet, the mechanisms underlying transport re-translocation of within plants remain unclear. Here, wide-ranging natural diversity in seed allocation positive correlations among yield traits were found using 190 soybean accessions field trials. Among them, P-efficient genotype BX10 outperformed BD2 assessments PUE that largely explained through differences redistribution from pods to seeds under low stress. Pods therefore subjected transcriptome analysis, GmVPE1 was identified as a vacuolar Pi transporter investigate further. Importantly, significant DNA polymorphism promoter regions remarkably associated with weight grown on P-deficient soils. Further analyses suggested mRNA abundance haplotype 2 (Hap) significantly higher than GmVPE1Hap1. highly upregulated by deficiency preferentially expressed pods, seeds, coats, which consistent GUS staining transgenic carrying pGmVPE1Hap2::GUS. Near-isogenic lines GmVPE1Hap2 allele, along stable soybeans overexpressing GmVPE1Hap1 background, had increases PUE, more setting, greater yields both greenhouse trials control plants. In summary, variation alleles determines genetic expression subsequent phenotypes, impacts yield, thereby makes this important resource molecular breeding.

Language: Английский

Citations

0
Salinity as a key factor affects viral structure, function, and life strategies in lakes from arid and semi-arid regions DOI

Haojun Lei,

Nicolas Zhou, Jinhong Zhang

et al.

Journal of Hazardous Materials, Journal Year: 2025, Volume and Issue: unknown, P. 138075 - 138075

Published: March 1, 2025

Language: Английский

Citations

0
Seasonal succession, host associations and biochemical roles of aquatic viruses in a eutrophic lake plagued by cyanobacterial blooms DOI Creative Commons
Ling Yuan, Pingfeng Yu, Xinyu Huang

et al.

Environment International, Journal Year: 2024, Volume and Issue: 193, P. 109125 - 109125

Published: Nov. 1, 2024

Viruses are implicated to play key roles as biogeochemical mediators and ecological drivers in freshwater ecosystems. However, the dynamics of viruses host associations throughout seasons during blooming periods eutrophic ecosystems remain poorly understood. From water microbiomes planktonic biomass from Lake Taihu, a large lake China that experiences annual Microcystis-dominated harmful algal blooms (HABs), we recovered 41,997 unique viral clusters spanning wide taxonomic range, including 15,139 Caudovirales targeting bacteria 1,044 NCLDV eukaryotes. The community exhibited clear seasonal succession, driven primarily by microbial communities (particularly Cyanobacteria Planctomycetes) environmental factors (mainly nutrients temperature). Host prediction revealed infection had more distinct impact on bacteria-driven nitrogen pathways than phosphate cycling. HAB-induced variations composition conditions affected strategies lifestyles, virus-encoded auxiliary metabolic genes (vAMGs) distributions. infecting Proteobacteria Actinobacteria showed an enhanced lysogenic lifestyle narrower range HAB peak summer, while Bacteroidota adopted opposite strategy. Notably, vAMGs were most abundant before outbreak spring, compensating for bacterial processes their hosts such carbohydrates metabolism, photosynthesis, regulation. findings highlight intricate relationships between viruses, microbes, bloom-associated environment, underscoring important biochemical

Language: Английский

Citations

1