Project description:Greenhouse experiment testing the effects of Barley yellow dwarf virus on Avena sativa and the fate of isotopically labeled MAOM added to soil

2024-04-17 | MSV000094560 | MassIVE

Environmental changes in Yellow River Delta with terrace construction and agricultural cropping.

Project description:BackgroundCrude flats in delta areas are often saline-alkaline and unsuitable for agricultural cropping. In the 1990s, people residing in the Yellow River delta constructed terraces on the flats for agricultural development. Herein, we investigated environmental changes resulting from this agricultural development and evaluated whether the current land use is effective and sustainable.MethodsWe sampled soil and weeds from croplands, terrace slopes, and crude flats within the delta terrace landscape. The measured soil properties included soil salinity, pH, total N, total P, and organic matter in different lands and soil layers: 0-10, 10-20, and 20-30 cm. The surveyed weed characteristics were the biomass of roots and rhizomes, species composition, life form, cover and height. These indices were statistically verified by different land types and soil layers.ResultsSoil salinity in the terrace crop lands was found to have reduced to <4 g·kg-1, whereas in the crude flats, remained >6 g·kg-1. Soil pH in the terrace croplands was surprisingly increased to >9 ; meanwhile, organic matter content decreased drastically, which is significantly different from that observed in the case of terrace slopes and crude flats. Total N and P content in the terrace crop lands were seemingly unchanged on averages but at the depths >20 cm, they reduced unavoidably. Plant underground organs were relatively scarcer in the croplands than in the other lands. Weeds grew well on the terrace slopes but were insufficient in the croplands. Overall, terrace construction is effective for developing coastal saline flats for agricultural use, but the traditional land use in the Yellow River delta has caused chronic soil degradation that is against a sustainable productive industry.

| S-EPMC8590797 | biostudies-literature

Transcriptional profiling of CAI4 (Wild-type), cpp1Δ/Δ, cek1Δ/Δ, cek2Δ/Δ, cpp1Δ/Δ cek1Δ/Δ, cpp1Δ/Δ cek2Δ/Δ and cek1Δ/Δ cek2Δ/Δ strains in the absence or presence of alpha pheromone in Candida albicans

Project description:Twenty-one pheromone-induced genes were selected from the literature (Zhao, Daniels et al. 2005 was the major source) as the reference set for assessing the pheromone response of CAI4 (Wild-type), cpp1Δ/Δ, cek1Δ/Δ, cek2Δ/Δ, cpp1Δ/Δ cek1Δ/Δ, cpp1Δ/Δ cek2Δ/Δ and cek1Δ/Δ cek2Δ/Δ strains.Our aim was to check whether or not these 21 pheromone-induced genes are up-regulated in response to pheromone in each mutant strain.

2019-01-26 | GSE125636 | GEO

rrp6 delta and rrp6 delta, trf4 delta vs WT

Project description:BMA64 rrp6 delta::HIS3 vs BMA64 WT (Mat a), grown at 30°C to OD 0.6 in YPD. BMA64 rrp6 delta::URA3, trf4 delta::KAN vs BMA64 WT, grown at 30°C to OD<0.6 in YPD. Keywords: other

2005-04-28 | GSE2579 | GEO

Experimental river delta size set by multiple floods and backwater hydrodynamics.

Project description:River deltas worldwide are currently under threat of drowning and destruction by sea-level rise, subsidence, and oceanic storms, highlighting the need to quantify their growth processes. Deltas are built through construction of sediment lobes, and emerging theories suggest that the size of delta lobes scales with backwater hydrodynamics, but these ideas are difficult to test on natural deltas that evolve slowly. We show results of the first laboratory delta built through successive deposition of lobes that maintain a constant size. We show that the characteristic size of delta lobes emerges because of a preferential avulsion node-the location where the river course periodically and abruptly shifts-that remains fixed spatially relative to the prograding shoreline. The preferential avulsion node in our experiments is a consequence of multiple river floods and Froude-subcritical flows that produce persistent nonuniform flows and a peak in net channel deposition within the backwater zone of the coastal river. In contrast, experimental deltas without multiple floods produce flows with uniform velocities and delta lobes that lack a characteristic size. Results have broad applications to sustainable management of deltas and for decoding their stratigraphic record on Earth and Mars.

| S-EPMC4928958 | biostudies-literature

Effect of PPAR-delta on murine microglia gene expression during experimental autoimmune encephalomyelitis

Project description:Effect of PPAR-delta on murine microglia gene expression during experimental autoimmune encephalomyelitis

| PRJNA691595 | ENA