Showing 21 of 71 papers in Biology

Seed Germination Characteristics of the Precious Tree Species Keteleeria calcarea in Karst Regions (Postprint)

Jiang Haidu, Weiling Xie, Chai Shengfeng, Tang Jianmin, Jiang Yunsheng, Qin Huizhen, Wei Xiao
2022-03-30 ChinaXiv:chinaxiv-202204.00016

Keteleeria davidiana var. calcarea is a precious tree species in mid-subtropical karst regions, characterized by a narrow distribution range and scarcity of wild seedlings, which severely constrains its natural regeneration. To investigate the causes of its endangerment and provide a reference for i…

Postprint: Physicochemical Properties and Composite Shear Strength of Alpine Grasslands at Different Degradation Levels in the Yellow River Source Region

Yang Fucheng, Liu Changyi, Hu Xiasong
2022-03-28 ChinaXiv:chinaxiv-202203.00112

To investigate the impacts of alpine grassland degradation on soil physicochemical properties and root-soil composite shear strength in the Yellow River source region, this study examined alpine grasslands in Henan County, Qinghai Province, within the Yellow River source region. Through field sampli…

Biomass Allocation Characteristics of Erodium oxyrhynchum in Different Habitats and Germination Types: Postprint

Zhang Yuanyuan, Meng Huanhuan, Zhou Xiaobing
2022-03-28 ChinaXiv:chinaxiv-202203.00114

Ephemeral plants represent an important functional group in desert ecosystems, exhibiting diverse habitats and asynchronous germination characteristics in many species. Biomass accumulation and allocation patterns reflect plant responses and adaptive traits to environmental conditions; thus, investi…

Leaf Morphology of Five Hypoxidaceae Species in China and Its Taxonomic Significance: Postprint

Tian Qin, Duan Hanning, Wang Yunqiang, Li Haitao, Li Lu
2022-03-18 ChinaXiv:chinaxiv-202203.00049

To clarify the taxonomic issues concerning intergeneric systematic relationships in the Hypoxidaceae family, this study selected five species from three genera of Chinese Hypoxidaceae as research subjects. Using light microscopy, scanning electron microscopy, and paraffin sectioning techniques, we o…

Variation in Net Photosynthetic Rate of Grapevine and Its Influencing Factors in Northwest Arid Region: Postprint

Qin Wenhua, Zhang Yang, Zhu Yongtai, Cong Xu, Chen Huiling, Zhu Gaofeng
2022-03-18 ChinaXiv:chinaxiv-202203.00052

As one of the main economic crops in the arid regions of northwestern China, understanding its photosynthetic production process is crucial for cultivation. To investigate the photosynthetic physiological characteristics of grapes under natural field conditions and the main factors affecting grape p…

Analysis of Fungal Community Composition in Root Endosphere and Rhizosphere Soil of Nervilia fordii from Guangxi Karst Region (Postprint)

Tan Xiaoming, Yang Xinfeng, Sun Xueping, Zhou Yaqin, HU Shiyi, Yuan Changgé, Shi Zhongheng
2022-03-18 ChinaXiv:chinaxiv-202203.00057

To investigate the diversity of fungal communities in the roots and rhizosphere soil of Nervilia fordii (Orchidaceae), this study utilized Illumina MiSeq high-throughput sequencing technology to analyze the fungal composition in the roots and rhizosphere soil of N. fordii from two sampling sites, Da…

Postprint: Diversity of Endophytic Fungi from Guangxi Oleander and Screening for Inhibitory Activity Against Several Aquatic Pathogenic Bacteria

Song Jingjing, Luo Meimiao, Li Lu, Yang Zicong, Wang Lin, Zhuge Liang's wisdom, Qiu Qinghua, Zhu Kaixin, Su Benwei, Gong Bin
2022-03-18 ChinaXiv:chinaxiv-202203.00060

Oleander is an important medicinal plant. To investigate the diversity of endophytic fungi in oleander and evaluate the activity of their secondary metabolites, this study isolated and purified endophytic fungi from Guangxi oleander (Nerium indicum), identified them using a combination of morphologi…

Postprint: Relationships Between Plant Community Species Diversity and Soil Factors Along Elevational Gradients in the Balguntay Region, Southern Slope of the Central Tianshan Mountains

Ma Zijing, Zhang Yunling, Liu Bin
2022-03-18 ChinaXiv:chinaxiv-202203.00061

To investigate the distribution characteristics of plant community species diversity along an elevation gradient and its relationship with soil environmental factors in the Baluntai region on the southern slope of the middle Tianshan Mountains, this study employed field survey methods, establishing …

Postprint: Rhizosphere Soil Microbial Diversity of Paris polyphylla var. chinensis at Different Growth Years

Xian Kanghua, Su Jiang, Fu Chuanming, He Wen, Liu Baojun, Dongbin Xie, Ningzhen Huang, He Jinxiang
2022-03-18 ChinaXiv:chinaxiv-202203.00062

To investigate the relationship between the growth and development of Paris polyphylla and changes in soil microbial community structure, this study employed Illumina high-throughput sequencing technology to sequence and analyze bacterial 16S rRNA and fungal 18S sequences in the rhizosphere soil of …

Differences in Growth, Photosynthesis, and Stress Resistance of Mulberry and Paper Mulberry under Bicarbonate Treatment (Postprint)

Li Shihong, Yao Kai, Liu Yingliang, Wu Yanyou
2022-03-18 ChinaXiv:chinaxiv-202203.00063

To investigate the effects of HCO3- on plant growth and physiological characteristics under bicarbonate stress in karst habitats, seedlings of Broussonetia papyrifera and Morus alba were used to examine plant growth, photosynthetic capacity, antioxidant enzyme activities, osmotic adjustment substanc…

Comparison of Urine Proteomes in Tumor-Bearing and Tumor-Resected Mice

Heng Ziqi, Zhao Chenyang, Gao Youhe, Zhao Chenyang, Youhe Gao
2022-03-14 ChinaXiv:chinaxiv-202203.00024

Objective This study addressed the critical concern of clinical surgeons—the efficacy of solid tumor resection. The urinary proteome can sensitively reflect physiological changes in the organism. This study explored changes in the urinary proteome of mice with MC38 subcutaneous tumors following rese…

Urine Proteomics for Prediction of Escitalopram Efficacy

Shuxuan Tang¹, Yuhang Huan¹#, Youhe Gao¹*, Jian Yang²*, Tang Shuxuan1 Xun Yuhang1# Gao Youhe1* Yang Jian2*
2022-03-11 ChinaXiv:chinaxiv-202203.00030

Abstract Objective: Escitalopram requires approximately 12 weeks to demonstrate efficacy in the treatment of depression. We sought to explore the prediction of drug efficacy before medication administration using a urinary proteome approach. Methods: We selected urine samples from 10 good responders…

Changes in Urine Proteome Before and After Influenza Vaccination

Pan Xuanzhen, Liu Yongtao, Bao Yijin, Gao Youhe, Youhe Gao
2022-03-09 ChinaXiv:chinaxiv-202203.00026

Proteins in urine are enriched through multiple filtrations of plasma by the glomeruli, and the information they contain can sensitively reflect changes in the human body. Following vaccination, blood antibody titers and seroconversion rates are typically assessed at 2–4 weeks; could urine enable ea…

Changes in the Urinary Proteome in a Rat Model of Acute Hypoxia

BAO Yijin, Cheng Xiang, Zhu Lingling, Fan Ming, Youhe Gao, Gao Youhe
2022-03-03 ChinaXiv:chinaxiv-202203.00007

[Objective] This study aims to investigate the effects of hypoxia on the rat urinary proteome and identify changes in urinary proteins associated with hypoxic stress. [Methods] This study employed liquid chromatography-tandem mass spectrometry (LC-MS/MS) to screen for differential urinary proteins i…

Urinary Proteomic Alterations in Stroke-Prone Spontaneously Hypertensive Rats (SHRSP)

Meng Wenshu, Gao Youhe, Gao Youhe
2022-02-28 ChinaXiv:chinaxiv-202203.00002

Hypertension is a multifactorial complex disease associated with genetic and environmental factors that has become one of the most serious public health challenges. Despite progress in blood pressure reduction, the diagnosis and treatment of hypertension remain limited due to insufficient investigat…

Nutrient Enrichment Enhances Growth and Competitive Ability of Invasive Giant Ragweed (Ambrosia trifida) Populations Postprint

Wei Chunqiang, Tang Saichun, Li Xiangqin, Pan Yumei
2022-02-14 ChinaXiv:chinaxiv-202202.00038

Understanding the effects of nutrient enrichment on the growth and competition of invasive plants, as well as the differential responses of different invasive populations to nutrient variation, is crucial for predicting invasion risk. To investigate the invasion risk of Bidens frondosa, this study e…

Characterization of the Complete Chloroplast Genome of Wild Populations of *Morina nepalensis* var. alba: A Postprint

Zhang Qian, Zhang Dequan
2022-02-14 ChinaXiv:chinaxiv-202202.00041

Acanthocalyx alba is a commonly used medicinal plant in Tibetan regions, yet studies on its complete chloroplast genome remain scarce. To elucidate the fundamental characteristics of this species' chloroplast genome and investigate its lineage genetic structure, this study employed the Illumina sequ…

Postprint: Whole-Genome Size and Characteristics Analysis of Cliff Plants *Opisthopappus taihangensis* and *Opisthopappus longilobus*

Wang Yiling, Zang En, Zhang Hao, Liu Zhixia, Lan Yafei, He Shan, Hao Weili, Yanling Cao
2022-02-14 ChinaXiv:chinaxiv-202202.00042

Opisthopappus taihangensis and Opisthopappus longilobus are endemic perennial cliff herbs of the Taihang Mountains, important wild resources of the family Compositae with high economic and ecological value. To determine suitable whole-genome sequencing strategies for the two species, this study empl…

Postprint: Analysis of Salinity and Halophytic Vegetation Diversity in Uncultivated Saline-Alkali Soils of the Junggar Basin, Xinjiang

Liang Meng
2022-02-11 ChinaXiv:chinaxiv-202202.00029

This study investigated uncultivated saline-alkali soils in the Junggar Basin, Xinjiang, measuring soil salt content, pH, electrical conductivity, eight major ions, and other indicators. Multivariate statistics and principal component analysis (PCA) were employed to examine the distribution characte…

Postprint: Study on the Relationship Between Soil Factors and Leaf Functional Traits in Nitraria Shrub Sand Dunes at Different Successional Stages

Wang Fei
2022-02-11 ChinaXiv:chinaxiv-202202.00030

The relationship between plant functional traits and the environment constitutes a focal point of functional trait research; environmental factors drive changes in plant functional traits, thereby promoting community succession. This study investigated Nitraria tangutorum shrub sand dunes at differe…