Automatically translated preprints from the Chinese arXiv (ChinaXiv).
Showing 50 of 71 papers in Biology
Cotton is an important economic crop widely cultivated in the saline-alkaline soils of southern Xinjiang, China. To control soil salinity for cotton seed germination and seedling survival, farmers commonly employ salt leaching during winter and spring. However, excessive leaching may waste water res…
Artificial cyanobacteria crusts are formed by inoculating soil with cyanobacteria. These crusts help prevent soil erosion and restore soil functionality in degraded croplands. However, how fast the artificial cyanobacteria crusts can be formed is a key issue before their practical application. In ad…
Integrating sprinkler with deficit irrigation system is a new approach to improve crop water productivity and ensure water and food security in arid areas of India. This study undertook a field experiment of sprinkler-irrigated cumin (variety GC-4) with a mini-lysimeter setup at an experimental rese…
Live-imaging microscopy technology has been increasingly applied for meiosis study in plants, which largely relies on the set up of a healthy ex vivo culture system for inflorescences ensuring that the captured chromosomes dynamics approaches the natural features of meiosis. Here, we report that Ara…
Tea and black coffee, as globally widely consumed beverages, play important roles in maintaining organismal health. Since urinary proteins rarely originate directly from beverages, changes in the urine proteome reflect alterations in the organism after being influenced by beverages rather than metab…
To investigate the anatomical structural characteristics of oil tea (Camellia oleifera) leaves in high-altitude regions and their relationship with drought resistance, this study utilized 35 superior oil tea plants with excellent fruiting traits previously screened in the eastern high-altitude regio…
Taxodium ascendens and Taxodium distichum are common landscape color-leaf tree species whose leaves gradually turn orange (red) during the autumn-winter color transition period. Analyzing the physiological characteristics of leaves during the color transition period in these two Taxodium species is …
To screen for Eucalyptus robusta essential oil families with excellent antibacterial activity, this study utilized four 5-year-old E. robusta families from Nanning and Wuxuan as experimental materials. Essential oils were extracted from fresh leaves via steam distillation, their chemical components …
Panax notoginseng, a precious traditional Chinese medicinal material in China, faces problems such as low reproductive rates and extinction of wild resources. To investigate the flowering biology and breeding system characteristics of P. notoginseng and elucidate the reasons for its low seed set rat…
Bombesin receptor subtype-3 (BRS3) is an important orphan G protein-coupled receptor that regulates energy homeostasis and insulin secretion. As a member of the bombesin receptor (BnR) family, which includes neuromedin B receptor (NMBR) and gastrin-releasing peptide receptor (GRPR), the lack of know…
Drip irrigation and flood irrigation are major irrigation methods for maize crops in the Hetao Irrigation District, Inner Mongolia Autonomous Region, China. This research delves into the effects of these irrigation methods on carbon dioxide (CO2) exchange and crop growth in this region. The experime…
Until now, image quality assessment has not addressed color issues. The literature on image quality assessment primarily evaluates the degree of degradation (deterioration) of image quality during image processing procedures such as compression and transmission. A planar image is essentially a two-d…
This paper first elaborates on the concept of technological revolution and its necessary conditions, proposes and analyzes endogenous and exogenous agricultural disruptive technologies and their differences, and particularly introduces the concept of cross-boundary technologies while demonstrating t…
Carpinus tientaiensis is an endangered plant endemic to China, discontinuously distributed only within Zhejiang Province with sparse populations, currently in a critically endangered status. This study investigates the phylogeographic structure and phylogenetic differentiation of Carpinus tientaiens…
Elevational gradient is a key factor influencing patterns of species diversity. To investigate the elevational distribution patterns of species diversity in the tropical natural forests of Diaoluo Mountain, vegetation surveys were conducted in six tropical natural forest sample plots within an eleva…
To investigate the material basis for the antibacterial activity of Ailanthus altissima root bark, this study employed silica gel, Sephadex LH-20, and other chromatographic methods to separate and purify the methanol extract of Ailanthus altissima root bark. The structures of the monomeric compounds…
The response of plant growth and reproduction to future climate change has received widespread attention. To understand the spatial distribution pattern characteristics of clonal growth and sexual reproduction parameters of emergent macrophytes and the influence pathways of environmental factors on …
To enhance scientific understanding of farmland surface processes and improve agricultural water management in arid oasis regions, this study employed eddy covariance technique and utilized energy balance observational data from a vineyard during the growing season to analyze variation characteristi…
Saxifraga stolonifera is a shade plant with relatively high ornamental value, commonly used in courtyard landscaping. Light intensity may have an important influence on the growth performance of Saxifraga stolonifera, especially leaf color, leaf spot formation, and their color depth, thereby affecti…
Biodiversity loss driven by factors such as global climate change and human activities has drawn considerable attention to biodiversity conservation from various sectors worldwide. Traditional biodiversity conservation has primarily focused on the species composition and distribution patterns of spe…
To investigate the chemical constituents in the leaves of the characteristic plant Champereia manillana var. longistaminea, this study employed silica gel column chromatography (CC), thin-layer chromatography (TLC), Sephadex LH-20 column chromatography, reversed-phase silica gel (RP-18) column chrom…
Annonaceae is the most evolutionarily advanced and species-rich family in the basal angiosperm order Magnoliales. Current phylogenetic studies divide Annonaceae into four subfamilies: Anaxagoreoideae, Ambavioideae, Annonoideae, and Malmeoideae, comprising 107 genera and over 2,400 species, with appr…
Hainan Island has a topography that is high in the center and low around the periphery. From the central mountainous region to the eastern coastal plain, the composition of the flora has undergone certain changes due to differences in natural conditions and the degree of historical human disturbance…
Sorbus plants exhibit polymorphic crown forms, exquisite flower colors, vibrant fruits, and diverse leaf colors throughout the seasons, possessing high horticultural ornamental value. However, due to the presence of interspecific hybridization, polyploidization, and apomixis within the genus, Sorbus…
Environmental regulation of secondary metabolites constitutes the theoretical and practical foundation for high-quality cultivation of medicinal plants. However, to date, research on the effects of short-term ultraviolet induction on the accumulation of medicinal active components remains relatively…
Different biological groups often exhibit substantial differences in species richness, a phenomenon commonly observed in ecological and biological research. However, the causes underlying this phenomenon remain an unresolved mystery. From a macroevolutionary perspective, the evolutionary time hypoth…
Biondia Schltr. is a Chinese endemic genus comprising approximately 13 species, whereas Merrillanthus Chun & Tsiang is a monotypic genus distributed exclusively in China and Cambodia. Currently, both genera have been subsumed into Vincetoxicum Wolf; however, deficiencies remain in sampling and phylo…
Hybridization of Chinese flowering cabbage can induce not only DNA sequence variations but also epigenetic changes independent of DNA sequence. To elucidate the formation mechanism of epigenetic diversity in Chinese flowering cabbage, this study employed F-MSAP to detect DNA methylation levels a…
This paper is a biochemistry design experiment thesis from Harbin Institute of Technology (Weihai). The experiment employed the 2,6-dichloroindophenol method to determine the vitamin C content in vitamin beverages and effervescent tablets, discussed the feasibility of using pre-made vitamin beverage…
Abstract: Aeolian sandy soil in mining areas is characterized by intense evaporation and poor water retention capacity. This study was designed to identify a suitable biochar application method to improve soil water infiltration and minimize soil water evaporation for aeolian sandy soil. Using an in…
Planting cover crop has been suggested as a way of increasing soil organic carbon in agricultural land. Ryegrass (Lolium multiflorum L.), as a cover crop, could improve soil fertility and lower soil CO2 emission. However, effects of soil water content and nitrogen on soil carbon mineralization after…
Estimating species evolutionary timescales constitutes a crucial component of research on life's evolution. In recent years, numerous studies have revealed significant disparities in evolutionary rates among different genes and species, necessitating novel approaches to re-estimate the timing of evo…
To investigate the molecular mechanism differences of the key enzyme gene PtCHI in isoflavonoid metabolism among Pueraria varieties, and to preliminarily elucidate the causes for inter-varietal differences in isoflavonoid content, this study employed wild Pueraria and the starch-rich Pueraria cultiv…
Acanthus ebracteatus is a rare true mangrove plant inhabiting mangrove ecosystems with considerable medicinal value. This study aimed to investigate the diversity of culturable endophytic and rhizosphere bacteria associated with A. ebracteatus, and to explore potential novel species and strains with…
Soil nitrogen (N) availability is an important factor affecting soil microbial community structure and soil nitrogen cycling; however, the effects of N addition on soil N transformation and N functional genes (NFGs) expression in Mongolian pine plantations remain poorly understood. To explore the ef…
The Lijiang River basin features diverse elevations, soil types, and vegetation types. To investigate the characteristics of soil nutrients and soil enzyme activities, this study examined surface soils (0–20 cm) under typical vegetation types (natural forest, bamboo forest, pine forest, orchard, pad…
Guangxi Mulun National Nature Reserve is located in the transitional zone between the Yunnan-Guizhou-Guangxi and South China floristic regions, and constitutes a central intersection between the Palearctic and Paleotropical floristic realms, occupying an irreplaceable position in China's biodiversit…
An anterior part of skull was recently found near Xiayangwan in Guanghe County, Gansu Province, presumably from the Liushu Formation. The skull represents a new species of Pararhizomys, named as Pararhizomys parvulus. The new species is characterized by: small size, upper molars higher crowned and m…
To investigate the influence of root water stress response functions on field water dynamics and yield simulation, soil water dynamics and wheat yield were simulated using the Richards equation and the PS123 crop growth model, with comparative analysis conducted among three water stress response fun…
Tiger nut (Cyperus esculentus) is an oil crop with low soil nutrient requirements, making it suitable for promotion and cultivation in the sandy areas of northern China to adjust agricultural planting structures. However, soil disturbance during the harvesting process can potentially increase the ri…
Objective: Pregnancy is a process during which the body's physiological state undergoes profound changes. The normal course of pregnancy is crucial for ensuring proper fetal development and maintaining maternal health. We attempted to explore whether changes in the urinary proteome can reflect the p…
Isoëtes is the most anciently originated genus of aquatic vascular plants, with all species listed as National First-Class Protected Plants. Through nationwide investigation and research on Isoëtes plants, significant morphological differences were found among tetraploid individuals from different l…
The Baiku Yao people have a strong tradition of raising and consuming local black pigs, and possess unique and extensive experience and knowledge regarding the collection and management of feed plants. This study aims to conduct an ethnobotanical inventory of feed plants and their related indigenous…
Late embryogenesis abundant (LEA) proteins are closely associated with plant stress resistance, protecting plant cells under drought stress, reducing plant damage, and are widely distributed across organisms. Selaginella pulvinata is a fern species with exceptional survival capacity under drought st…
Hibiscus mutabilis has a long cultivation history and is an ancient garden tree species and medicinal plant native to China. To investigate the evolutionary characteristics of H. mutabilis cultivars and their relatives, clarify the phylogenetic relationships among H. mutabilis cultivars and between …
Phenological changes driven by global warming have already exerted significant impacts on biodiversity and ecosystems. Research on subtropical phenology remains relatively limited compared to that in temperate and frigid zones. Studies of autumn phenology are particularly scarce, and whether phenolo…
SPL transcription factors are widely involved in plant growth, development, and stress response processes. Currently, there are no studies on SPL membrane-bound (SPL with Transmembrane Motif) transcription factors, i.e., STM transcription factors, in Dendrobium officinale. To investigate the roles o…
This study investigated the response characteristics of soil enzyme activity to biochar input to provide a theoretical reference for the rational application of eucalyptus branch biochar. Based on a field experiment in eucalyptus plantations in northern Guangxi, biochar prepared from eucalyptus plan…
This study conducted a taxonomic investigation on a morphologically distinct specimen of the genus Carcinomyces collected from Liancheng National Nature Reserve in Gansu Province, using morphological characterization and molecular phylogenetic analysis based on ITS sequences. The results indicate th…
To investigate the effects of different land use types and ecological restoration patterns on soil enzyme activities and their C:N:P ratios in karst regions, this study selected three land use types [degraded disturbed land, grassland, and fruit tree (loquat) forest land] and four restoration patter…
