Research Institute of Resource Insects

Kunming, China

Research Institute of Resource Insects

Kunming, China
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Wu H.,Research Institute of Resource Insects | Hyde K.D.,Research Institute of Resource Insects | Hyde K.D.,Mae Fah Luang University
Mycotaxon | Year: 2013

The five new species included in the original circumscription of Scolecopeltidium are re-examined, redescribed, and illustrated. Scolecopeltidium mirabile and S. hormosporum are retained in Scolecopeltidium, while S. liciniae is lectotypified and transferred to Scolecopeltis, and S. costi and S. multiseptatum are transferred to Micropeltis. © 2013. Mycotaxon, Ltd.

Wu H.X.,Research Institute of Resource Insects | Schoch C.L.,U.S. National Center for Biotechnology Information | Boonmee S.,Mae Fah Luang University | Bahkali A.H.,King Saud University | And 4 more authors.
Fungal Diversity | Year: 2011

The family Microthyriaceae sensu Lumbsch and Huhndorf 2010 is a poorly known but interesting family comprising 50 genera consisting of foliar epiphytes or saprobes on dead leaves and stems. We re-visited the family based on examinations of generic types where possible. Members are distributed in Aulographaceae, Asterinaceae, Microthyriaceae, Micropeltidaceae and Palmulariaceae and notes are provided on each of these families. Nine genera are transferred from Microthyriaceae to Asterinaceae, and two to Aulographaceae based on the splitting or dissolving nature of the thyriothecia to release ascospores. New sequence data for a number of species and genera are provided. Microthyriaceous members growing on other fungi and lichens differ from Microthyriaceae sensu stricto and the family Trichothyriaceae is reinstated to accommodate these taxa. Other genera of Microthyriaceae belong in Rhytismataceae, Stictidaceae, Venturiales incertae cedis, Dothideomyetes genera incertae cedis, Hypocreales incertae cedis and Ascomycota genera incertae cedis. The family Microthyriaceae is reduced to seven genera characterised by superficial, flattened thyriothecia, with the cells of the upper wall radiating in parallel arrangement from the distinct central ostiolar opening, while the lower peridium is generally poorly developed. Sequence data is provided for five species with thyriothecia and Paramicrothyrium and Neomicrothyrium are described as new genera and Micropeltis zingiberacicola is introduced as a new species. Our phylogenetic analysis underscores the high genetic diversity for thyriotheciate species and there is no clear clade that can be well defined as Microthyriales. Nuclear ribosomal data support multiple polyphyletic lineages within Microthyriaceae and Micropeltidaceae. Some unexpected DNA based phylogenetic relationships such as those between Muyocopron and Saccardoella will require corroboration with more complete taxon sampling as well as additional non ribosomal markers. There are few differences between Aulographaceae, Asterinaceae and Palmulariaceae and these families may need synonymising. © Kevin D. Hyde 2011.

Wu H.,Research Institute of Resource Insects | Jaklitsch W.M.,University of Vienna | Voglmayr H.,University of Vienna | Hyde K.D.,Research Institute of Resource Insects | And 2 more authors.
Mycotaxon | Year: 2011

The holotype of Tothia fuscella has been re-examined and is re-described and illustrated. An identical fresh specimen from Austria is used to designate an epitype with herbarium material and a living culture. Sequence analyses show T. fuscella to be most closely related to Venturiaceae and not Microthyriaceae, to which it was previously referred. © 2011. Mycotaxon, Ltd.

Lei S.,Research Institute of Resource Insects | Qingfeng S.,Material Science and Engineering College | Jiang D.,Research Institute of Resource Insects
Advanced Materials Research | Year: 2011

This paper studies the anatomical construction and physical-mechanical properties of Dalbergia sissoo Roxb introduced from Nepal planting in Yuan Jiang in Yunnan Province. Results indicated: Dalbergia sissoo is diffuse-porous wood and the form of its fiber is even with an average length of 1.43mm. The micro fibril angle is 12.24°. The air-dried and profile density are respectively 0.746 g/cm3 and 0.634 g/cm3, which are normal. The air-dried and oven-dried of variance shrinkage are 1.75 and 1.55 respectively. The comprehensive quality coefficient of Dalbergia sissoo is 2309×105 Pa, which is a high quality wood for higher level material. The comprehensive study shows that human breeding Dalbergia sissoo owns elevating quality. © (2011) Trans Tech Publications, Switzerland.

Liao S.,Research Institute of Resource Insects | Zhang P.,Research Institute of Resource Insects | Li K.,Research Institute of Resource Insects | Sun Q.,Material Science and Engineering College
Advanced Materials Research | Year: 2011

This paper examined the in situ growth of hydrophobic anatase TiO 2 coating on wood surface using a cosolvent-controlled hydrothermal method. EDXA, FTIR and XRD analysis confirmed that the growth of TiO2 coating on wood surface was bonded to hydrocarbon chains. The relative contact angle of before and after treated wood sample was changed from 46.5° to 136.8° with the examination of contact angle analyzer, which induced a change of the untreated wood surface from hydrophilic to hydrophobic. As observed on SEM image, some slippery TiO2 spheres with about 300-600 nm in diameter evenly dispersed on treated wood surface. © (2011) Trans Tech Publications.

Zheng Y.-X.,Research Institute of Resource Insects | Wu J.-C.,Research Institute of Resource Insects | Peng X.-M.,Research Institute of Resource Insects | Zhang Y.-P.,Research Institute of Resource Insects
Chinese Journal of Ecology | Year: 2013

By using the foliar nutrient diagnosis methods such as critical concentration value approach (CCVA), graph diagnosis and recommendation integrated system (DRIS), and index DRIS, this paper studied the relationships between the seed yield and its azadirachtin content and the foliar nutrient contents of seeding Azadirachta indica plantations in Yuanmou dry-hot valley. There existed significant linear correlations between the nutrient contents of foliages collected in June and the seed yield. In high-yielding plantations, the optimal contents of foliar total N, total P, and total K were 15.09-22.68, 1.22-1.59, and 7.68-9.17 g·kg-1, and the critical values were 15.09, 1.22, and 7.68 g·kg-1, respectively. In low-yielding plantations, the nutrient diagnosis results from graph and index DRIS were identical, i. e., the nutrient requirement was P>N>K, which fitted with the background data of the nutrient contents in local soils. There were no correlations between the foliar nutrient contents and seed azadirachtin content, which was possibly due to the genetic factors of A. indica itself. Therefore, foliar nutrient diagnosis test could be not appropriate for measuring the seed azadirachtin content of A. indica seeding plantations.

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