Dong-Yang Liu

Learn More
OBJECTIVE To establish and optimize ISSR-PCR system of Dendrobiwn officinale according to the ISSR-PCR characters of D. officinale. METHOD The effects of ISSR-PCRs was examined by selecting primers and designing different concentrations of the factors in the ISSR-PCRs, the reliable ISSR-PCR systems for D. officinale populations researching was established(More)
The complete nucleotide sequence of a cryptic plasmid pPZZ84 from Bacillus pumilus strain ZZ84 was determined. Plasmid pPZZ84 is 6817bp long with GC content of 36.7%. Seven putative open reading frames were identified. ORF7 shows 91% and 90% amino acid identity with rep proteins of pSH1452 and pPL1, respectively, members of rolling-circle replication (RCR)(More)
Assessment of compost maturity is crucial for achieving high quality compost in order to guarantee its marketability. In this context, a novel technique that combines fluorescence excitation-emission matrices (EEMs) with parallel factor (PARAFAC) analysis to assess compost maturity is presented. A total of 60 fluorescence EEMs of composts were successfully(More)
Due to uncertainties in target motion and limited sensing regions of sensors, collaborative target tracking in wireless sensor networks (WSNs) suffers from low tracking accuracy and lack of reliability when a target cannot be detected by a scheduled sensor. Generally, actuating multiple sensors can achieve better tracking performance but with high energy(More)
AIM Genetic diversity, relationship and molecular authentication of total 8 wild populations of Dendrobium officinale were investigated using RAPD markers. METHODS 10 random decamer primers were screened for Random Amplified Polymophic DNA (RAPD) fragments. A DNA molecular dendrogram was established based on cluster analysis by UPGMA (unweighted(More)
Methotrexate (MTX) is an anchor drug used to treat rheumatoid arthritis (RA), but responsiveness is variable in effectiveness and toxicity. Methotrexate and its polyglutamate conjugates (MTXPG(n)) in red blood cells (RBC) have been associated with patient response. In the current study, 13 collagen-induced arthritic (CIA) rats and 12 healthy rats were given(More)
The impact of fusaric acid (FA) phytotoxin on the physiology of root leaf cells in watermelon seedlings was evaluated. Results revealed that the cell membrane potential treated with FA in 12 h was decreased by 61.9–81.8% compared with untreated controls. FA markedly accelerated the lipid peroxidase activity of watermelon leaves. Malondiadehyde in leaves(More)
Salicylic acid, which is biosynthesized inside plant and is often found and accumulated in soil due to plant debris decaying, is considered as a signaling substance during plant-microbe interactions. It is involved in the cycling of biogeochemistry and related to plant resistance to biotic and abiotic stress. The antibiotic effect of salicylic acid on(More)
To assess the influence of phenolic acids from plant root exudates on soil pathogens, we studied the effect of sinapic acid added to chemically defined media on the growth and virulence factors of Fusarium oxysporum f. sp. niveum. Sinapic acid inhibited the growth and conidial formation and germination of F. oxysporum f. sp. niveum by 6.7–8.8% and(More)
OBJECTIVE To select optimal media and conditions for the tissue culture of Dendrobium lituiforum. METHOD The basic media, light illumination condition, phytohormone, and natural aqueous extracts. were tested and compared. The chlorophyll contents and soluble protein contents were measured. RESULT N6 medium was suitable for embryo germination and growth.(More)