| 1. |
- Li, Jian, et al.
(author)
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Assembly and succession of the phyllosphere microbiome and nutrient-cycling genes during plant community development in a glacier foreland
- 2024
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In: Environment International. - 0160-4120. ; 187
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Journal article (peer-reviewed)abstract
- The phyllosphere, particularly the leaf surface of plants, harbors a diverse range of microbiomes that play a vital role in the functioning of terrestrial ecosystems. However, our understanding of microbial successions and their impact on functional genes during plant community development is limited. In this study, considering core and satellite microbial taxa, we characterized the phyllosphere microbiome and functional genes in various microhabitats (i.e., leaf litter, moss and plant leaves) across the succession of a plant community in a low-altitude glacier foreland. Our findings indicate that phyllosphere microbiomes and associated ecosystem stability increase during the succession of the plant community. The abundance of core taxa increased with plant community succession and was primarily governed by deterministic processes. In contrast, satellite taxa abundance decreased during plant community succession and was mainly governed by stochastic processes. The abundance of microbial functional genes (such as C, N, and P hydrolysis and fixation) in plant leaves generally increased during the plant community succession. However, in leaf litter and moss leaves, only a subset of functional genes (e.g., C fixation and degradation, and P mineralization) showed a tendency to increase with plant community succession. Ultimately, the community of both core and satellite taxa collaboratively influenced the characteristics of phyllosphere nutrient-cycling genes, leading to the diverse profiles and fluctuating abundance of various functional genes during plant community succession. These findings offer valuable insights into the phyllosphere microbiome and plant–microbe interactions during plant community development, advancing our understanding of the succession and functional significance of the phyllosphere microbial community.
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| 2. |
- Xue, Chuang, et al.
(author)
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Bridging chemical- and bio-catalysis : high-value liquid transportation fuel production from renewable agricultural residues
- 2017
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In: Green Chemistry. - : Royal Society of Chemistry. - 1463-9262 .- 1463-9270. ; 19:3, s. 660-669
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Journal article (peer-reviewed)abstract
- Catalytic conversion of lignocellulosic biomass to high-value transportation petrol, jet and diesel fuels is of great importance to develop versatile renewable energy and boost the rural economy, thus it is receiving worldwide attention. However, the state-of-the-art processes still suffer from a low efficiency in yield and productivity, which hinders the progress of its commercialization. Thus, it is essential to explore the consolidated catalytic reaction and refinery process. Here we report an advanced approach/process that could continuously produce long-chain (C-5-C-15) ketones from lignocellulosic biomass in a cascade mode by integrating several bio- and chemical catalysis reactions/processes, which exhibits a high efficiency and stable conversion rate. This technology consolidated the acetone-butanol-ethanol (ABE) fermentation, palladium catalyzed alkylation and in situ product recovery, allowing the catalytic reaction to proceed consistently and smoothly. The remarkable conversion properties are mainly attributed to the excellent compatible linkage of chemical catalysis with biosynthesis and process design to stabilize the Pd catalytic reaction. This validated strategy for the rational process design and integration of chemical-and bio-catalysis offers great demonstration in producing high-value transportation biofuels derived from agricultural residues.
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| 3. |
- Yu, Qiang, et al.
(author)
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Unveiling segregation-induced evolution in phase constitution of Cu-containing high-entropy alloys
- 2020
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In: Journal of Alloys and Compounds. - : Elsevier BV. - 0925-8388 .- 1873-4669. ; 843
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Journal article (peer-reviewed)abstract
- A theoretical investigation of Cu segregation effect on phase constitution, magnetic, and mechanical properties of FeCoNi(CumAl)(x) high-entropy alloys is presented. Results show that the homogenous FeCoNi(Cu1.0Al)(x) only exists as a single face-centered cubic phase at arbitrary temperatures. The level of Cu-segregation determines the phase evolution amongst inhomogeneous single phase (0.75 <= m < 1.0), duplex phase (m << 0.75), and triple phase (m approximate to 0.75). Our results reproduce the observation. Only face-centered cubic phase can be formed for FeCoNi(CumAl)(x) with either rather low or extreme high content of (CumAl) even though the segregation occurred. The Cu addition lifts the total magnetic moments by enhancing the local magnetic moment of Fe, Co and Ni. The serious Cu segregation in the duplex-phase HEAs induces the decrease of ductility of fcc and bcc phases. The increasing Cu enhances the strength of Cu-rich fcc phase and the decreasing Cu weakens that of Cu-poor bcc phase.
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