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Populus, etc ; Haloxylon ammodendron; canopy; carbohydrates; dieback; drought; drought tolerance; environment; field experimentation; leaf water potential; photosynthesis; stomatal conductance; water stress; Show all 13 Subjects
Abstract:
... In recent year, widespread declines of Populus bolleana Lauche trees (P. bolleana, which dieback from the top down) and Haloxylon ammodendron shrubs (H. ammodendron, which dieback starting from their outer canopy) have occurred. To investigate how both intra-canopy hydraulic changes and plasticity in hydraulic properties create differences in vulnerability between these two species, we conducted a ...
... Soil pollution caused by cadmium (Cd) is a serious concern. Phytoremediation is a popular technology in the remediation of Cd-contaminated soil. Salix matsudana var. matsudana f. umbraculifera Rehd. has been characterized as a high Cd-accumulating and tolerant willow (HCW). Here, transcriptome and proteome profiling, along with morphology analyses were performed to explore molecular cross-talk inv ...
Populus maximowiczii; Populus nigra, etc ; relative humidity; temperature; water content; wood; Show all 6 Subjects
Abstract:
... The aim of this work was to improve the understanding of dry matter losses (DML) that occur in wood chips during the initial phase of storage in outdoor piles. For this purpose, a laboratory scale storage chamber was developed and investigated regarding its ability to recreate the conditions that chips undergo during the initial phase of outdoor storage. Three trials with poplar Max-4 (Populus max ...
Populus grandidentata; Populus sieboldii, etc ; blue light; irradiation; photomorphogenesis; red light; seedlings; Show all 7 Subjects
Abstract:
... Light-emitting diodes (LEDs) are known to affect plant morphology. In this study, we examined the relationship between changes in stem and root morphology in Populus sieboldii × Populus grandidentata induced by irradiation with blue (450 nm), red (630 nm), and white (combination of red, blue, and green; 525 nm) LED lights. Populus samples were reared for 36–55 days in separate LED incubators, and ...
... New short rotation poplar plantations yield a mix of biomass and logs, whereby the latter are used for board production and represent the most valuable component. Therefore, there is an interest in maximizing log yield, which must be balanced against the incremental time consumption incurred for manufacturing any additional logs. This study explored the optimization potential of manipulating log s ...
Populus maximowiczii; Populus tremula, etc ; biosynthesis; catabolism; etiolation; genotype; gibberellins; hormonal regulation; hybrid poplars; paclobutrazol; phenotypic plasticity; Show all 11 Subjects
Abstract:
... Phenotypic plasticity, in response to adverse conditions, determines plant productivity and survival. The aim of this study was to test if two highly productive Populus genotypes, characterised by different in vitro etiolation patterns, differ also in their responses to hormones gibberellin (GA) and abscisic acid (ABA), and to a GA biosynthesis inhibitor paclobutrazol (PBZ). The experiments on sho ...
Populus, etc ; Raman spectroscopy; models; polysaccharides; Show all 4 Subjects
Abstract:
... In this study, regularization algorithms (RR, LR, and ENR), classical ML algorithms (SVR, DT, and RF), and advanced GBM algorithms (LightGBM, CatBoost, and XGBoost) were applied to build the holocellulose content predictive models of poplar based on features extracted from Raman spectra. Evaluation results of models indicate that classical ML algorithms show higher predictive accuracy than regular ...
... In this paper, the Hartmann experimental system was used to study the effect of different proportions of micron and nano Al(OH)₃ powders on the deflagration flame propagation of poplar dust. In the course of the experiment, a high-speed camera was used to record the flame shape and characteristic parameters in the process of poplar dust deflagration flame propagation. Combined with the SEM images ...
Populus, etc ; ammonium; genomics; microRNA; plantlets; rhizosphere; Show all 6 Subjects
Abstract:
... BACKGROUND: The net ammonium fluxes differ among the different root zones of Populus, but the physiological and microRNA regulatory mechanisms are unclear. OBJECTIVE: To elucidate the physiological and miRNA regulatory mechanisms, we investigated the two root zones displaying significant differences in net NH₄⁺ effluxes of P. × canescens. METHODS: Populus plantlets were cultivated with 500 μM NH₄C ...
Populus maximowiczii; Populus nigra, etc ; biobased products; biomass; biorefining; capital; coproducts; energy; income; ingredients; market competition; profitability; raw materials; veterinary medicine; Show all 14 Subjects
Abstract:
... The concept of a biorefinery entails, the multi-product use of biomass, which is processed to high quality products and afterwards the production residues are used for energy or other purposes. The maximum utilization of resources and the minimum impact on the natural environment are the two essential arguments attesting to the validity of this concept. Beside the environmental considerations, ano ...
Populus, etc ; Fagus; equations; hardwood; models; softwood; Spain; Show all 7 Subjects
Abstract:
... The embedment strength is a key parameter in the design of timber connections with metal fasteners. This property can be determined by the equations given by design codes such as the Eurocode 5, which are based on the European Yield Model proposed by Johansen, and it depends on the value of timber density among other parameters. These equations provided by design codes are based on experimental te ...
Populus, etc ; Lasiodiplodia theobromae; color; dyeing; tricyclazole; wood; Show all 6 Subjects
Abstract:
... The technology of dyeing wood by microorganisms is a kind of pollution-free and sustainable wood dyeing technology. To achieve fast and rich dyeing of Lasiodiplodia theobromae on the surface of poplar wood, tyrosinase and tricyclazole were used as induction factors in this experiment. The results showed that L. theobromae had a better induction effect in the cross-section of poplar wood and induce ...
Populus nigra; Populus tremula, etc ; Betula pendula; Salix alba; Salix caprea; bark; biomass production; carbon; carbon sequestration; nitrogen content; softwood; Serbia; Show all 12 Subjects
Abstract:
... To select softwood broadleaves for biomass cropping, a study of the carbon and nitrogen content of the bark and wood of six softwood broadleaves in southwestern Serbia was conducted. Compared with white willow, european aspen, common alder, black poplar, and silver birch, goat willow has a high potential for carbon storage in bark and wood, representing a promising softwood broadleaf for biomass p ...
Populus, etc ; active sites; enzymes; evolution; site-directed mutagenesis; Show all 5 Subjects
Abstract:
... Elucidating the mechanisms of function differentiation of duplicate genes in large enzyme families is critical to understand the molecular evolution of important plant enzymes. By biochemical activity assays and site‐directed mutagenesis, this study revealed the contributions of active site motifs to the functional divergence of duplicate genes. ...
Populus alba; Populus tomentosa, etc ; biotechnology; chromosome number; diploidy; ecological genetics; ecology; females; forestry; forests; genome assembly; hybrid species; males; urban horticulture; Asia; Show all 15 Subjects
Abstract:
... Populus has a wide ecogeographical range spanning the Northern Hemisphere, and interspecific hybrids are common. Populus tomentosa Carr. is widely distributed and cultivated in the eastern region of Asia, where it plays multiple important roles in forestry, agriculture, conservation, and urban horticulture. Reference genomes are available for several Populus species, however, our goals were to pro ...
Populus, etc ; agroforestry; market prices; sustainable development; trees; India; Show all 6 Subjects
Abstract:
... Poplar is a widely adopted agroforestry tree in North India, especially in the state of Punjab. The present study was undertaken to analyse constraints in adoption of improved poplar based- agroforestry practices in the Ropar district of Punjab and the impact of KVK interventions on knowledge and adoption of improved poplar production technologies. The constraint analysis revealed that the major c ...
Populus tremula; Populus tremuloides, etc ; Laccaria bicolor; adhesion; ectomycorrhizae; epitopes; fungi; genetically modified organisms; hyphae; pectinesterase; plant root cells; polygalacturonic acid; soil; transcriptomics; trees; Show all 15 Subjects
Abstract:
... The development of ectomycorrhizal (ECM) symbioses between soil fungi and tree roots requires modification of root cell walls. The pectin‐mediated adhesion between adjacent root cells loosens to accommodate fungal hyphae in the Hartig net, facilitating nutrient exchange between partners. We investigated the role of fungal pectin modifying enzymes in Laccaria bicolor for ECM formation with Populus ...
Populus canadensis; Populus deltoides, etc ; DNA; Nicotiana benthamiana; RNA; chromatin; gel electrophoresis; genes; genetically modified organisms; phenotype; phosphates; phosphorus; sequence analysis; tobacco; transcription factors; yeasts; Show all 16 Subjects
Abstract:
... Phosphorus (P) is an important nutrient for plants. Here, we identify a WRKY transcription factor (TF) in poplar (Populus deltoides × Populus euramericana) (PdeWRKY65) that modulates tissue phosphate (Pi) concentrations in poplar. PdeWRKY65 overexpression (OE) transgenic lines showed reduced shoot Pi concentrations under both low and normal Pi availabilities, while PdeWRKY65 reduced expression (RE ...
Populus, etc ; Raman spectroscopy; lignin; lignin content; lignocellulose; models; prediction; Show all 7 Subjects
Abstract:
... Based on features extracted from Raman spectra, regularization algorithms, SVR, DT, RF, LightGBM, CatBoost, and XGBoost were used to develop prediction models for lignin content in poplar. Firstly, Raman features extracted from FT-Raman spectra after data processing were used as input of models and determined lignin contents were output. Secondly, grid-search combined with cross-validation was use ...
Populus euphratica, etc ; ecological restoration; forests; hydrology; shrubs; watersheds; China; Show all 7 Subjects
Abstract:
... Changes in the resistance, recovery, and resilience of three desert riparian ecosystems to extreme droughts and the influence of ecological characteristics on them from 2000 to 2020 were analyzed within the Tarim River Basin, Xinjiang, China. The results showed that: (1) The resistance of the Populus euphratica forest community was the highest among the three plant communities. The recovery and re ...