作者机构：
[刘仲华; 李冠华] Hunan Agricultural University;[Li Guanhua] College of Bio-Safety Science and Technology,Hunan Agricultural University;[魏孝义] South China Botanical Garden,Chinese Academy of Sciences;[徐汉虹] Key Laboratory of Natural Pesticide and Chemical Biology,College of Natur
摘要：
The genus Tineovertex Moriuti, 1982 is revised. Eleven species are recognized, including five new ones: T. hamoides, sp. nov., from Malaysia; T. expansa, sp. nov., from Malaysia and Brunei; T. fibriformis, sp. nov., from Malaysia; T. thailandia, sp. nov., from Thailand; and T. elongata, sp. nov., from China and Thailand. Adults and genitalia of all species are illustrated, and a key to the species is provided. Types of the new species are deposited in Hunan Agricultural University, Changsha, Hunan, China; Osaka Prefecture University, Sakai, Osaka, Japan; and The Natural History Museum, London, UK.
关键词：
Ambrosia artemisiifolia;Development;Fecundity;Ophraella communa;Population expansion;Short-term high temperature stress
摘要：
Since insects are ectothermic, they are highly vulnerable to the sudden increase of temperature. Indeed, it has been hypothesized that the survival, development, fecundity, and even population expansion of insects are all affected significantly by extremely high temperature. We studied the effect of short-term high temperature stress on the survival and development of different stages, adult longevity and fecundity of Ophraella communa (Coleoptera: Chrysomelidae), a biological control agent of the invasive plant, the common ragweed, Ambrosia artemisiifolia (Asterales: Asteraceae) in the laboratory. The results showed that egg, larval, pupal and adult survival rates were significantly affected after 2 hour-short-stress at high temperatures (35 to 47°C) when compared to the 28°C control. With the exceptions of the control and 35°C stress, survival rate of females was significantly higher than that of males after short-stress at any high temperature. Short-term high temperature stress also significantly impacted longevity and fecundity of adult beetles. Except for control, female longevity was significantly longer than male's after short-stress at any high temperature. The survival rates of different stages, and adult longevity and fecundity of the beetle decreased significantly with the increase of short-term stress temperature. Based on the results of the present study, we conclude that the development and population expansion of O. communa may be significantly affected when they are exposed to a high temperature stage in a summer day in the areas invaded by common ragweed, in southern China.
作者机构：
[周红春; 谭济才; 李密; 王鹏] College of Bio-Safety Science and Technology, Hunan Agricultural University, Changsha 410128, China;[刘国华] Wuyunjie National Nature Reserve, Taoyuan 415700, Hunan, China
通讯机构：
[Li, M.] C;College of Bio-Safety Science and Technology, , Changsha 410128, China
关键词：
China;Epactris capulus;Lepidoptera;Tineidae;new species
摘要：
The genus Epactris Meyrick, 1905 is recorded from China. E. capulus sp. nov. is described and illustrated, as the first record of this genus from China. The new species is very similar in appearance to E. alcaea from India, but it can be distinguished easily from the latter based on the characters of forewing. The adult photos of those two species and a photo of the male genitalia of the new species are provided. All type specimens of the new species are deposited in HUNAU (Institute of Entomology, Hunan Agricultural University, China).
摘要：
The commercially available ferrocene-based diphosphine ligand (S-c,S-Fc)-TaniaPhos was found to be highly effective in the Rh-catalyzed asymmetric hydrogenation of 3-aryl-2-(phosphonomethyl)propenates. Excellent enantioselectivity (90-98% ee) and high catalytic activity (S/C up to 1000) have been achieved, which represents the best results reported so far. (C) 2011 Elsevier Ltd. All rights reserved.
摘要：
A new anthracnose disease on chili pepper (cayenne pepper cv. Hongxiu 2003, fruiting type pepper) was found in Zhijiang County, Hunan, China in 2009. The disease was observed only on the fruits. Lesions were generally elongated, on which dark acervuli were arranged concentrically. Later, cracking of older lesions was observed. With a microscope, fungal conidia were observed to be 15.8 x 4.1 mum, fusiform or oval with one end acute, and single celled with two to seven oil globules. No setae were found on the acervuli. Eight isolates (HNZJ001-HNZJ008) showed no difference in colony feature when cultured on potato dextrose agar. All the isolates showed white growth at the early stages, but colonies turned pink when they produced powdery spores and then finally became red gray. The average colony diameter was 68.5 to 72.3 mm after 7 days with obvious gray black concentric rings because of the development of aerial and substrate mycelia. After a needle-prick inoculation with a suspension of 1 x 10(6) spores per ml of HNZJ001 on 30 chili pepper fruits with three repeats, the same symptoms were observed and the same fungus was recovered. In bioassays, HNZJ001 caused lesions on both mature and immature fruits, while Glomerella cingulata strain LSQ1 (GenBank Accession No. HQ607386) used as a control did not infect immature fruits. PCR amplification was carried out by utilizing universal rDNA-ITS primer pair ITS4/ITS5. Sequencing of the PCR products of HNZJ001 (GenBank Accession No. GU059863) showed 100% identity to G. acutata (GenBank Accession No. EU008863) and Colletotrichum acutatum (GenBank Accession No. AF207794) after a BLAST search. The pathogen was identified as G. acutata (asexual stage: C. acutatum) on the basis of morphological characters and rDNA-ITS sequence analysis. Worldwide, it has been reported that pepper anthracnose might be caused by up to five species of Glomerella (Colletotrichum): G. cingulata, C. coccodes, C. capsici, C. dematium, and G. acutata (2), among which only the first three were previously reported in China. In recent years, G. acutata was reported on such plants as apple (3) and strawberry (1) in China, but not on pepper. To our knowledge, this is the first report of G. acutata on chili pepper in China. References: (1) X.-J. Ren et al. Acta Phytopathol. Sin. 38:325, 2008. (2) P. P. Than et al. Zhejiang Univ. Sci. B 9:764, 2008. (3) R. Zhang et al. Plant Dis. 92:1474, 2008.
作者机构：
[Shan, Xiaoyi; Li, Chenggang; Gao, Bida] College of Bio-Safety Science and Technology, Hunan Agricultural University;Changsha, China;[Peng, Wen] School of Life Sciences, Tsinghua University;Beijing, China;[Shan, Xiaoyi; Li, Chenggang; Gao, Bida] Changsha, China
通讯机构：
College of Bio-Safety Science and Technology, Hunan Agricultural University, China
摘要：
The swallowtail butterfly Luehdorfia chinensis (Leech, 1893) is endangered in China. Although its biological characteristics and habitat were reported more than twenty years ago, its conservation biology remained insufficiently known. In 2009, we discovered a population of the butterfly in Wuyunjie National Nature Reserve, Hunan, and preliminary data on the biology of this population was accumulated from March 2009 to July 2010, based on laboratory rearing and surveys in the field. Its life history was similar to those of the Zhejiang and Suzhou populations, and its habitat was on a slope around the mountaintop with its main host plant Asarum sieboldii. In Wuyunjie National Nature Reserve, human activities, such as cultivating and mowing are permitted to local residents to support the relationship between people and nature. Ruderal environments with sunlight and open spaces produced by moderate burning and mowing in the habitat may play important roles in maintenance of the population. Because suitable habitat of L. chinensis requires a comparatively open environment, logging high trees in the lowland may be necessary to sustain the Hunan population.
作者机构：
[Tsang, Winson; Liang, Guang-Wen] S China Agr Univ, Coll Resources & Environm, Guangzhou 510642, Guangdong, Peoples R China.;[Tsang, Winson] HK Organ Agr & Ecol Res Assoc, Hong Kong, Hong Kong, Peoples R China.;[You, Lan-Shao] Hunan Agr Univ, Coll Biosafety Sci & Technol, Changsha 410128, Hunan, Peoples R China.;[Van Achterberg, Cornelis] Netherlands Ctr Biodivers Nat, Dept Terr Zool, NL-2300 RA Leiden, Netherlands.
通讯机构：
[Liang, Guang-Wen] S;S China Agr Univ, Coll Resources & Environm, Guangzhou 510642, Guangdong, Peoples R China.
关键词：
Braconidae;Cheloninae;Conopomorpha sinensis;Gracillariidae;Guangdong;Hymenoptera;Litchi chinensis;Litchi fruit borer;New species;Phanerotoma;South China
摘要：
An efficient visual detection method of Ba
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using tiopronin (Tio)-modified gold nanoparticles (GNPs) in aqueous solution is reported. Tio could bind onto the GNP surfaces through the sulphur atom and the cross-linking of Tio-functionalised GNPs could be quickly accomplished by chelation upon the addition of Ba
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. Colour changes were observed from red to blue (or purple) within minutes with the increased concentration of Ba
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, in response to surface plasmon absorption of dispersed and aggregated nanoparticles. Using this colourimetric sensor, the concentration of Ba
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was determined with a limit of detection lower than 1.5 × 10
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M by the naked eye and could further be easily monitored by a UV-vis spectrometry. The possible mechanism of the aggregated Tio-GNPs was discussed by the addition of ethylenediaminetetraacetate and Ba
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in different orders.
