Ningbo Academy of Inspection and Quarantine

Ningbo, China

Ningbo Academy of Inspection and Quarantine

Ningbo, China

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Hou L.W.,CAS Institute of Microbiology | Hou L.W.,University of Chinese Academy of Sciences | Liu F.,CAS Institute of Microbiology | Duan W.J.,Ningbo Academy of Inspection and Quarantine | Cai L.,CAS Institute of Microbiology
Mycosphere | Year: 2016

Colletotrichum aracearum sp. nov. from Monstera delociosa and Philodenron selloum, and C. camelliae-japonicae sp. nov. from Camellia japonica, are described in this paper. Strains were isolated using single spore isolation technique from the spore masses formed on leaf lesions, and successfully induced for sexual states in cultivation. Morphological comparisons were made with related species. Phylogenetic relationships were inferred based on ITS, ACT, TUB2, and GAPDH sequences. C. camelliae-japonicae belongs to the C. boninense species complex, while C. aracearum does not nest within any currently known species complex but forms a sister clade to C. cliviae. This is the first report of Colletotrichum species from hosts Monstera delociosa and Philodenron selloum. © Guizhou Academy of Agricultural Sciences.


Wang X.,Ningbo Entry Exit Inspection and Quarantine Bureau | Wang X.,Ningbo Academy of Inspection and Quarantine | Wu B.,Ningbo Entry Exit Inspection and Quarantine Bureau | Wu B.,Ningbo Academy of Inspection and Quarantine | Ma C.,Zhejiang University of Technology
Huagong Xuebao/CIESC Journal | Year: 2013

The electrochemical oxidation of zinc O, O, O', O'-tetrabutyl bis(phosphorodithioate) (ZBPD) on glassy carbon electrode in DMF-H2O solution was studied by cyclic voltammetry and chronocoulometry. The influences of temperature, scan rate and ZBPD concentration on the electrochemical characteristics of ZBPD were also investigated. The results showed that the electrochemical oxidation of ZBPD in DMF-H2O solution was an irreversible process with one electron transferred, which was controlled by diffusion. Charge-time curve for the electrochemical oxidation of ZBPD in DMF-H2O solution at various temperatures were obtained by chronocoulometry. In terms of the Cottrell equation, diffusion coefficient was estimated for each temperature, and it increased with temperature. According to the Arrhenius equation, the activation energy of diffusion of ZBPD in DMF-H2O solution was calculated to be 29.52 kJ·mol-1. © All Rights Reserved.


Wang X.,Ningbo Entry Exit Inspection and Quarantine Bureau | Wang X.,Zhejiang University of Technology | Wu B.,Ningbo Entry Exit Inspection and Quarantine Bureau | Wu B.,Zhejiang University of Technology | Ma C.,Ningbo Academy of Inspection and Quarantine
Asian Journal of Chemistry | Year: 2013

The electrochemical oxidation behaviour of zinc O,O,O',O'-tetrabutyl bis(phosphorodithioate) (ZBPD) on a Pt disk microelectrode in N,N-dimethyl formamide solution was investigated by cyclic voltammetry and steady-state voltammetry methods. The influences of temperature, scan rate and ZBPD concentration on the electrochemical characteristics of ZBPD were also discussed. Results showed that the electrooxidation of ZBPD in DMF solution was an irreversible process with one electron transferred, which was controlled by diffusion. The steady-state limiting current of ZBPD in DMF solution was increased with the temperature increasing, which was due to the enhancement of diffusion of ZBPD in DMF solution at higher temperature. The diffusion coefficient was obtained for each temperature. In terms of the Arrhenius equation, the activation energy of diffusion of ZBPD in DMF solution was calculated to be 13.76 kJ mol-1.


Duan W.,Ningbo Entry Exit Inspection and Quarantine Bureau | Duan W.,Ningbo Academy of Inspection and Quarantine | Guo L.,Ningbo Entry Exit Inspection and Quarantine Bureau | Guo L.,Ningbo Academy of Inspection and Quarantine | And 7 more authors.
Journal of Applied Phycology | Year: 2012

During the summer of 2008 and 2009, massive algal blooms repeatedly broke out in the Yellow Sea of China. These were undoubtedly caused by the accumulations of one or more species in the macroalgal genus Ulva. In previous reports, morphological observation indicated that the species involved in this phenomenon is Ulva prolifera but molecular analyses indicated that the species belongs to an Ulva linza-procera-prolifera (LPP) clade. Correct identification of the bloom species is required to understand and manage the blooms, but the taxonomic status of the bloom species remains unclear. In the current study, the taxonomic status of 22 selected specimens from the Yellow Sea was assessed by using both morphological and molecular (ITS and rbcL sequences) data. In addition, 5S rDNA analyses were performed for those samples clustering in the LPP clade, and phylogenetic tree and ribotype analyses were constructed for determining the possible origin of the bloom. Three free-floating and two attached Ulva species were distinguished and described: Ulva compressa Linnaeus and Ulva pertusa Kjellman were found in free-floating samples; U. linza Linnaeus was found on rocks; and U. prolifera O. F. Müller was found in both habitats. Diversity in free-floating Ulva of the Yellow Sea appears to be greater than previously thought. The dominant free-floating Ulva species, U. prolifera, was not closely related to local populations attached to rocks but was closely related to populations from Japan. © 2011 Springer Science+Business Media B.V.


Zhu Z.K.,Ningbo Academy of Inspection and Quarantine | Zhu Z.K.,Ningbo University | Chen J.G.,Ningbo Academy of Inspection and Quarantine | Jin X.Z.,Ningbo Academy of Inspection and Quarantine | And 2 more authors.
Advanced Materials Research | Year: 2011

A method for simultaneous determination of trace levels of Cd(II), Cu(II), Pb(II) and Zn(II) in food additives by inductively coupled plasma atomic emission spectrometry ( ICP-AES ) after soluble membrane filter pre-concentration was developed. Based on collection of the chelates of metal ions(II) with 2-(5-bromo-2-pyridylazo)-5- diethylaminophenol ( 5-Br-PADAP ) on soluble membrane filter, the analyte ions were pre-concentrated and separated from sample matrix solutions. Multi-channel membrane filter device and soluble mixed cellulose ester membrane were selected. Analytical parameters such as pH, amount of 5-Br-PADAP, sample volume, etc. were optimized. Under the matrix of Na+, K+ and Mg2+, the limits of detection were 0.02 - 0.03, 0.14 - 0.23, 0.31 - 0.53, 0.10 - 0.15 μg L-1 for Cd(II), Cu(II), Pb(II) and Zn(II) respectively. The developed method was successfully applied to sodium benzoate, potassium sorbate and basic magnesium carbonate with spiked recoveries of 94% - 115%. Some sample analysis results were checked by inductively coupled plasma mass spectrometry ( ICP-MS ) directly. © (2011) Trans Tech Publications.

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