Publications by authors named "Ningnan Zhang"

Drought has been found to affect the size and color of precious heartwood of Dalbergia odorifera, but the mechanism remains unclear. For this purpose, we performed the measurement of heartwood size, color, and flavonoid content and composition in a 15-year-old mixed plantation of D. odorifera and Santalum album that had been subjected to two levels of rainfall exclusion and control treatments for seven years, and carbon isotope labeling and anatomical observation in 2-year-old potted D.

View Article and Find Full Text PDF
Article Synopsis
  • Different soil textures, like sandy loam and clay, have varying physicochemical and microbiological characteristics that are impacted by crop cultivation, specifically when growing zero-calorie sweetener crops.
  • Research showed that sandy loam soil had lower pH and higher nutrient content compared to clay soil after cultivation, resulting in greater bacterial diversity in sandy loam.
  • The study highlighted that soil properties such as pH and nutrient levels heavily influence bacterial community composition and offers insights for better fertilizer management in rotational farming practices.
View Article and Find Full Text PDF

To compare the bioactive compounds in agarwood induced by different methods in Aquilaria sinensis(Lour.) Gilg trees, a two dimensional thin layer chromatograph(2D-TLC) combined with effect directive analysis(EDA) was developed. Three antioxidants were found by 2D-TLC-DPPH and further identified as 2-(2-phenylethyl) chromones(PECs) with LC-MS/MS.

View Article and Find Full Text PDF

Introduction: Microbiota in the human body are closely related to human diseases. Female urogenital tract and rectal microbes have been considered as important factors affecting female pregnancy, but the mechanism is unknown.

Methods: Cervical, vaginal, urethral, and rectal swabs were collected from 22 infertile patients and 10 controls, and follicular fluid was extracted from 22 infertile patients.

View Article and Find Full Text PDF

Problem: In recent years, the incidence of female infertility has risen sharply, which is affected by many factors. It was recognized that female reproductive tract microbes play a role in the process of female conception. If the reproductive tract microbes could solve a certain proportion of infertility, it would certainly reduce the pain and economic burden of many patients.

View Article and Find Full Text PDF

is a semi parasitic plant and its growth is often restricted due to a lack of a host or water during plantation establishment. In this study, the effects of water and the host on the growth of seedlings were studied in pot culture. The results showed that the net photosynthetic rate and height of seedlings decreased significantly under drought stress.

View Article and Find Full Text PDF

Background: Agarwood is a highly sought-after resinous wood for uses in medicine, incense, and perfume production. To overcome challenges associated with agarwood production in Aquilaria sinensis, several artificial agarwood-induction treatments have been developed. However, the effects of these techniques on the metabolome of the treated wood samples are unknown.

View Article and Find Full Text PDF

Background: Dalbergia odorifera is an economically and culturally important species in the Fabaceae because of the high-quality lumber and traditional Chinese medicines made from this plant, however, overexploitation has increased the scarcity of D. odorifera. Given the rarity and the multiple uses of this species, it is important to expand the genomic resources for utilizing in applications such as tracking illegal logging, determining effective population size of wild stands, delineating pedigrees in marker assisted breeding programs, and resolving gene networks in functional genomics studies.

View Article and Find Full Text PDF

is a large evergreen tree species belonging to Salicaceae family, and its wood is tough, fine-grained, which makes it a good source of commercial use for building construction and furniture manufacturing. In this study, we sequenced the complete chloroplast genome of based on next generation sequencing and used these data to assess genomic resources. The size of the chloroplast genome was 157,852 bp, including a large single-copy region (85,888 bp), a small single-copy region (16,592 bp), and a pair of inverted repeats regions (27,686 bp).

View Article and Find Full Text PDF

is a rosewood species in Southwest China with high wood and medicinal value. To clarify genetic background of , we sequenced chloroplast genome by Illumina Hiseq and PacBio Sequel. The whole genome was 148,437 bp in length, containing a large single copy region (77,723 bp), a small single copy region (18,462 bp) and a pair of inverted repeats regions (26,126 bp).

View Article and Find Full Text PDF

Background: Dalbergia odorifera T. Chen (Fabaceae) is an International Union for Conservation of Nature red-listed tree. This tree is of high medicinal and commercial value owing to its officinal, insect-proof, durable heartwood.

View Article and Find Full Text PDF

is a genus of trees mainly distributed in tropical Asia, Africa, and South America. Some species of are rosewood tree species, having important economic value for timber, and for some species, medicinal value as well. Up to now, information about this genus with regard to the genomic characteristics of the chloroplasts has been limited.

View Article and Find Full Text PDF

A versatile theranostic agent that integrated with therapeutic and diagnostic functions is extremely essential for cancer theranostic. Herein, a multifunctional theranostic nanoplatform (PFP@MPDA-DOX) based on perfluoropentane (PFP) encapsulated mesoporous polydopamine (MPDA) is elaborately designed, followed by gating of drug doxorubicin (DOX) for preventing cargo leaking. The MPDA with pH-responsive biodegradation behavior was served as nanocarrier, which also endows the nanoplatform with a large cavity for PFP filling.

View Article and Find Full Text PDF
Article Synopsis
  • T. Chen is a valuable tree species native to Hainan Island, China, extensively planted for its medicinal and commercial uses, but there is a pressing need to improve its genetic resources due to limited information on germplasm collection and conservation.
  • A comprehensive database was created with 251 tree individuals, employing 19 microsatellite markers to assess genetic diversity and develop a core collection for breeding programs.
  • Findings revealed moderate genetic diversity among populations with suboptimal genetic variation, and a core group of 31 trees was identified to maintain overall genetic diversity, aiding future conservation and breeding efforts.
View Article and Find Full Text PDF

Previous studies demonstrated that estrogen receptor β (ERβ) signaling alleviates systemic inflammation in animal models, and suggested that ERβ‑selective agonists may deactivate microglia and suppress T cell activity via downregulation of nuclear factor κ‑light‑chain‑enhancer of activated B cells (NF‑κB). In the present study, the role of ERβ in lipopolysaccharide (LPS)‑induced inflammation and association with NF‑κB activity were investigated in PC‑3 and DU145 prostate cancer cell lines. Cells were treated with LPS to induce inflammation, and ELISA was performed to determine the expression levels of inflammatory cytokines, including tumor necrosis factor‑α (TNF‑α), monocyte chemoattractant protein 1 (MCP‑1), interleukin (IL)‑1β and IL‑6.

View Article and Find Full Text PDF

The aim of this study is to make a comparative evaluation on association of PSCArs2294008 C/T polymorphism with the risk of bladder cancer in Bai, Dai, and Han people in China. A potential mechanism of the T allele risk was also investigated. T allele increased the occurring risk of bladder cancer in Han (OR 1.

View Article and Find Full Text PDF

miR-203 is an epigenetically silenced tumor-suppressive microRNA in tumors. This study was designed to investigate the effects of miR-203 on the proliferation, migration, invasion, and apoptosis of bladder cancer (BCa) cells. The expression levels of miR-203 in BCa tissues, normal adjacent tissues, and BCa cell lines were detected.

View Article and Find Full Text PDF

The mechanisms driving the spatial patterns of species richness and composition are essential to the understanding of biodiversity. Numerous studies separately identify the contributions of the environment (niche process) and space (neutral process) to the species richness or composition at different scales, but few studies have investigated the contributions of both types of processes in the two types of data at the landscape scale. In this study, we partitioned the spatial variations in all, exotic and native understory plant species richness and composition constrained by environmental variables and space in 134 plots that were spread across 10 counties in Hainan Island in southern China.

View Article and Find Full Text PDF

Tree growth, water use, climate and soil water conditions were monitored over 12 months in two 3-4-year-old Eucalyptus urophylla S.T. Blake plantations on the Leizhou Peninsula of southern China.

View Article and Find Full Text PDF