Publications by authors named "Dong-hong Wu"

Background: To gain a better understanding of how Pyricularia oryzae population shifts is important for selecting suitable resistance genes for rice breeding programs. However, the relationships between P. oryzae pathogenic dynamics, geographic distribution, rice varieties, and timeline are not well studied.

View Article and Find Full Text PDF

Background: Bakanae disease caused by Fusarium fujikuroi is an increasing threat to rice production. The infected plants show symptoms such as elongation, slenderness, chlorosis, a large leaf angle, and even death. Bakanae disease is traditionally managed by seed treatment.

View Article and Find Full Text PDF

Brown planthopper (BPH), a monophagous phloem feeder, consumes a large amount of photoassimilates in rice and causes wilting. A near-isogenic line ‘TNG71-Bph45’ was developed from the Oryza sativa japonica variety ‘Tainung 71 (TNG71) carrying a dominant BPH-resistance locus derived from Oryza nivara (IRGC 102165) near the centromere of chromosome 4. We compared the NIL (TNG71-Bph45) and the recurrent parent to explore how the Bph45 gene confers BPH resistance.

View Article and Find Full Text PDF

The molecular basis underlying nasopharyngeal carcinoma (NPC) remains unclear. Recent progress in transcriptional regulatory network analysis helps identify the master regulator (MR) proteins that transcriptionally define malignant tumor phenotypes. Here, we investigated transcription factor-target interactions and identified TEA domain transcription factor 4 (TEAD4) as an MR of high-risk NPC.

View Article and Find Full Text PDF

Because Cadmium (Cd) is harmful to humans, and most non-smokers are exposed to Cd mainly through rice consumption, low-Cd rice breeding is urgently needed. It might not be possible to apply variation created using gene editing technology to breeding directly, so it is important to explore genetic variation in this trait in a natural population. In this study, variation in 4 genes was identified among 3024 accessions from the International Rice Research Institute 3000 Rice Genome Project (IRRI 3K-RGP) and 71 other important varieties, and the relationships between the variants and plant Cd accumulation were validated with hydroponic and pot experiments.

View Article and Find Full Text PDF

Background: Rice is a key global food crop. Rice lodging causes a reduction in plant height and crop yield, and rice is prone to lodging in the late growth stage because of panicle initiation. We used two water irrigation modes and four fertilizer application intervals to investigate the relationship between lodging and various cultivation conditions over 2 years.

View Article and Find Full Text PDF

Background: The genetic backgrounds and occurrence patterns of weedy rice (WR, Oryza sativa) are highly diverse, and so are the challenges facing its control among countries. WR control is difficult because it is similar to cultivated rice and manual removal is one of the few options for control. Understanding the ecology of WR will aid efforts to break its life cycle and establish long-term management strategies under both irrigated and rainfed systems.

View Article and Find Full Text PDF
Article Synopsis
  • Ureaplasma urealyticum (UU) is a common bacteria in the human reproductive system that can cause infections, highlighting the need for quick detection methods.* -
  • A new real-time fluorescence loop-mediated isothermal amplification (LAMP) assay was developed for detecting UU, using specific primers for ureaseB genes and monitored in a controlled temperature setup.* -
  • The LAMP method showed high sensitivity and specificity, successfully detecting UU in all tested clinical samples, proving to be a better alternative to traditional PCR techniques.*
View Article and Find Full Text PDF

Grain moisture content (GMC) is a key indicator of the appropriate harvest period of rice. Conventional testing is time-consuming and laborious, thus not to be implemented over vast areas and to enable the estimation of future changes for revealing optimal harvesting. Images of single panicles were shot with smartphones and corrected using a spectral-geometric correction board.

View Article and Find Full Text PDF
Article Synopsis
  • Weedy rice, a problematic cousin of cultivated rice, has traits that impact rice production, and the study aims to analyze its genetic traits using data from the 3000 Rice Genome Project (3K-RGP).
  • Researchers selected 1378 rice individuals from different sub-populations for a genome-wide association analysis, focusing on traits like seed coat color and seed height, identifying 66 specific SNPs (genetic markers) linked to these traits.
  • The study found that the genetic basis for traits varies across sub-populations, and the allele frequency and traits showed significant differences when comparing data from weedy rice and normal rice genomes.
View Article and Find Full Text PDF

Rice is one of the three major crops in the world and is the major crop in Asia. Climate change and water resource shortages may result in decreases in rice yields and possible food shortage crises. In this study, water-saving farming management was tested, and IOT field water level monitoring was used to regulate water inflow automatically.

View Article and Find Full Text PDF

Background: Bakanae is a seedborne disease caused by Fusarium fujikuroi. Rice seedlings emerging from infected seeds can show diverse symptoms such as elongated and slender stem and leaves, pale coloring, a large leaf angle, stunted growth and even death. Little is known about rice defense mechanisms at early stages of disease development.

View Article and Find Full Text PDF

Bakanae disease in rice can cause abnormal elongation of the stem and leaves, development of adventitious roots, a larger leaf angle, and even death. Little is known about the infection, colonization, and distribution of in rice plants across different growth stages. In this study, microscopic observation and quantitative real-time PCR were combined to investigate the pathogenesis of bakanae, using artificially inoculated seedlings of a susceptible rice cultivar, Zerawchanica karatals (ZK), a resistant cultivar, Tainung 67 (TNG67), naturally infected adult field plants (cultivars Kaohsiung 139, Taikeng 2, and Tainan 11), and an .

View Article and Find Full Text PDF

Background: Rice bakanae disease has emerged as a new threat to rice production. In recent years, an increase in the occurrence and severity of bakanae disease has been reported in several areas in Asia. Although bakanae disease affects rice yield and quality, little is known about the genetics of bakanae resistance in rice.

View Article and Find Full Text PDF

Background: Knowledge of the genetic diversity and spatial structure of Taiwan weedy red rice (WRR) populations, which adapted in a transplanting system, will facilitate the design of effective methods to control this weed by tracing its origins and dispersal patterns in a given region.

Results: Taiwan WRR is genetically most similar to Taiwan indica cultivars and landraces according to genetic distance. The inbreeding coefficient of the Taiwan WRR population is greater than 0.

View Article and Find Full Text PDF

Genome-wide detection of quantitative trait loci (QTL) hotspots underlying variation in many molecular and phenotypic traits has been a key step in various biological studies since the QTL hotspots are highly informative and can be linked to the genes for the quantitative traits. Several statistical methods have been proposed to detect QTL hotspots. These hotspot detection methods rely heavily on permutation tests performed on summarized QTL data or individual-level data (with genotypes and phenotypes) from the genetical genomics experiments.

View Article and Find Full Text PDF
Article Synopsis
  • - The study focuses on improving melon quality and resistance to powdery mildew through molecular marker-assisted breeding, emphasizing the importance of identifying quantitative trait loci (QTLs) related to these traits.
  • - Researchers created a linkage map with twelve groups and found 19 QTLs for various fruit traits, revealing that fruit size is primarily influenced by diameter and thickness, particularly on two specific linkage groups (LG5 and LG11).
  • - A major QTL for powdery mildew resistance was found on LG2, associated with a previously identified SSR marker, highlighting its potential use in developing new melon cultivars.
View Article and Find Full Text PDF

Objective: To explore the effects of safflower injection on prevention and treatment of hypoxic pulmonary hypertension and clarify the function of the endoplasmic reticulum stress apoptosis pathway during the process.

Methods: Thirty male SD rats were randomly grouped as normal control group, hypoxia-hypercapnia group and hypoxia+safflower group. The latter two groups were put in the cabin with oxygen concentration ranged from 9% to 11% and carbon dioxide concentration from 5% to 6%.

View Article and Find Full Text PDF

Objectives: This study investigated the influence of baseline and worsening renal function (WRF) on the efficacy of spironolactone in patients with severe heart failure (HF).

Background: Renal dysfunction or decline in renal function is a known predictor of adverse outcome in patients with HF, and treatment decisions are often on the basis of measures of renal function.

Methods: We used data from the RALES (Randomized Aldactone Evaluation Study) in 1,658 patients with New York Heart Association functional class III or IV HF and an ejection fraction <35%.

View Article and Find Full Text PDF

Objective: To investigate the relationship between interleukin-6 (IL-6) gene -572C/G polymorphism and the risk of chronic periodontitis disease.

Methods: IL-6-572C/G genotype polymorphism was examined in 93 patients with chronic periodontitis and 96 control subjects by PCR restriction fragment length polymorphism (PCR-RFLP) method.

Results: IL-6-572GG genotype and G allele were more frequent in chronic periodontitis patients than that in control subjects (P<0.

View Article and Find Full Text PDF