Results 41 to 50 of about 15,774,786 (357)

The underlying process of early ecological and genetic differentiation in a facultative mutualistic Sinorhizobium meliloti population

open access: yesScientific Reports, 2017
The question of how genotypic and ecological units arise and spread in natural microbial populations remains controversial in the field of evolutionary biology.
Nicolás Toro   +6 more
doaj   +1 more source

Assessment of tillage systems in organic farming: influence of soil structure on microbial biomass. First results [PDF]

open access: yes, 2007
Soil tillage modifies environmental conditions of soil microorganisms and their ability to release nitrogen. We compare the influence of reduced tillage (RT) and mouldboard ploughing (MP) on the soil microbial functioning in organic farming.
Chaussod, Rémi   +3 more
core  

Nematodes enhance plant growth and nutrient uptake under C and N-rich conditions [PDF]

open access: yes, 2016
The role of soil fauna in crucial ecosystem services such as nutrient cycling remains poorly quantified, mainly because of the overly reductionistic approach adopted in most experimental studies.
Bert, Wim   +4 more
core   +1 more source

Rethinking plastic waste: innovations in enzymatic breakdown of oil‐based polyesters and bioplastics

open access: yesFEBS Open Bio, EarlyView.
Plastic pollution remains a critical environmental challenge, and current mechanical and chemical recycling methods are insufficient to achieve a fully circular economy. This review highlights recent breakthroughs in the enzymatic depolymerization of both oil‐derived polyesters and bioplastics, including high‐throughput protein engineering, de novo ...
Elena Rosini   +2 more
wiley   +1 more source

Short-term mechanical properties and microstructure of coastal cement soil modified by sugarcane bagasse ash

open access: yesResults in Engineering
Sugarcane bagasse ash is a kind of agricultural waste with a large quantity and good volcanic ash reactivity, it is necessary to find a way to reasonably utilize it to prevent environmental pollution caused by long-term accumulation.
Liming Yao   +6 more
doaj   +1 more source

Soil structure and earthworm activity under different tillage systems in organic farming [PDF]

open access: yes, 2007
Organic farmers are encouraged to adopt conservation tillage to preserve soil quality and fertility and prevent erosion. However, many studies in different soil and climate conditions have demonstrated that the compaction of the untilled layer is higher ...
Aveline, Anne   +4 more
core  

Naked cuticle is essential for Drosophila wing development beyond Wingless signaling

open access: yesFEBS Open Bio, EarlyView.
Naked cuticle (Nkd), a Wnt signaling inhibitor, assumes extensive roles in Drosophila wing development. Overexpressing Nkd causes smaller, crumpled wings, while also perturbing multiple signaling pathways and developmental genes. A specific region (R1S) is critical for Nkd's function as a signaling integrator, offering new insights for studying its ...
Rui Wang, Ping Wang
wiley   +1 more source

Soil utilization of solid waste: Small-strain dynamic properties and microscopic mechanism of phosphogypsum-modified coastal cement soil

open access: yesJournal of Materials Research and Technology
Phosphogypsum (PG), a solid waste from the wet process phosphoric acid industry, but the utilization rate is low at present. The effect of phosphogypsum and cement on small strain dynamic characteristics of coastal soft soil was studied by resonance ...
Yingdi Pang   +5 more
doaj   +1 more source

Analysis of the Effect of Tilling and Crop Type on Soil Structure Using 3D Laser Profilometry

open access: yesAgriculture, 2023
Background and aim: Soil structure is an important indicator of the quality of soil, but detecting the early signs of soil degradation from soil structure is difficult.
Bianca B. Barreto   +7 more
doaj   +1 more source

Quantifying the contribution of free-living nematodes to nitrogen mineralization [PDF]

open access: yes, 2009
Soil fauna are estimated to contribute to approximately 30 % of nitrogen mineralization (Verhoef ∧ Brussaard, 1990). Soil nematodes are important contributors to this process through their key trophic positions as microbial grazers.
Buchan, David   +3 more
core  

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