• Title/Summary/Keyword: genera

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Bioconversion of Straw into Improved Fodder: Fungal Flora Decomposing Rice Straw

  • Helal, G.A.
    • Mycobiology
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    • v.33 no.3
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    • pp.150-157
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    • 2005
  • The fungal flora decomposing rice straw were investigated all over the soil of Sharkia Province, east of Nile Delta, Egypt, using the nylon net bag technique. Sixty-four straw-decomposing species belonging to 30 genera were isolated by the dilution plate method in ground rice straw-Czapek's agar medium at pH 6. The plates were incubated separately at $5^{\circ}C,\;25^{\circ}C\;and\;45^{\circ}C$, respectively. Twenty nine species belonging to 14 genera were isolated at $5^{\circ}C$. The most frequent genus was Penicillium (seven species), and the next frequent genera were Acremonium (three species), Fusarium (three species), Alternaria, Chaetomium, Cladosporium, Mucor, Stachybotrys (two species) and Rhizopus stolonifer. At $25^{\circ}C$, 47 species belonging to 24 genera were isolated. The most frequent genus was Aspergillus (nine species), and the next frequent genera were ranked by Penicillium (five species), Chaetomium (three species), Fusarium (three species). Each of Alternaria, Cladosporium, Mucor, Myrothecium and Trichoderma was represented by two species. At $45^{\circ}C$, 15 species belonging to seven genera were isolated. These were seven species of Aspergillus, two species of Chaetomium and two species of Emericella, while Humicola, Malbranchea, Rhizomucor and Talaromyces were represented by one species respectively. The total counts of fungi the genera, and species per gram of dry straw were significantly affected by incubation temperature and soil analysis (P < 0.05).

A Herbological study on the plants of Gymnospermae in Korea (한국산(韓國産) 나자강(裸子綱)식물에 관한 본초학적(本草學的) 연구(硏究))

  • An, Sang-Ho;Jeong, Jong-Kil
    • The Korea Journal of Herbology
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    • v.21 no.2
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    • pp.15-26
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    • 2006
  • Objectives : The plans can be used for medicinal purposes among Gymnospermae in korea and examined their effects and distributions. Methods : The examined herbalogical books and research papers which published at home and abroad. Results : 1. Pinus genus is main kind enough that it has 22 species among 75 species in the Gymnospermae of which medicinal plants are 7 species. 2. Folium is the main medicinal parts of medicinal plants in the Gymnospermae which is used in 22 genera. 3. According to nature and flavor of medicinal plants in the Gymnospermae, they were classified into warm 19 genera, balance 18 ; bitter taste 25, sweet taste 21. 4. According to meridian propism of medicinal plants in the Gymnospermae, they were classified into spleen meridian 12 genera, lung meridian 11, liver meridian 9, heart meridian 7. 5. According to the properties and principal curative action, they were classified into drugs for relieve wind and moisture 37 genera, drugs for relieve pain 21, drugs for hemostasis 15, drugs to activity 14. 6. It was researched that toxic medicinal plants include toxin were 8 kinds. Conclusion : There were totaled to 21 genera and 75 species in Gymnospermae in Korea and among them medicinal plants are 14 genera, 28 species, some 37% in total.

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Restoration Model of Evergreen Broad-leaved Forest in Warm Temperate Region(III) -Flora of Several Islands Off the South & East Seashore, Korea - (난대 기후대의 상록활엽수림 복원 모형(III) - 남, 동해 몇몇 도서의 관속식물상 -)

  • 김용식;오구균
    • Korean Journal of Environment and Ecology
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    • v.11 no.1
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    • pp.61-83
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    • 1997
  • The flora of evergreen broad-leaved forest regions in the islands off the south & east seashore was undertaken three times between August to October, 1995. The total number of vascular plants surveyed in the studied areas were summarized as 434 taxa; 105 families 297 genera 380 species 49 varieties 1 subspecies and 4 formas. The vascular plants were classified as 56 taxa 32 families 53 genera 50 species 6 varieties in Mokdo, 92 taxa 47 families 80 genera 81 species 9 varieties and 2 forms in Mijo-ri, 68 taxa 47 families 65 genera 58 species 9 varieties and 1 forms in Mijodo, 57 taxa 39 families 52 genera 53 species 4 varieties in Kkamakseom, 124 taxa 59 families 105 genera 112 species 11 varieties 1 subspecies in Aedo, 90 taxa 46 families 75 genera 83 species 7 varieties in Sayangdo, 135 taxa 63 families 111 genera 147 species 13 varieties in Kumodo, 78 taxa 40 families 67 genera 69 species 9 varieties in Chudo, 142 taxa 67 families 113 genera 120 species 20 varieties and 2 forms in Mira-ri, 184 taxa 73 families 150 genera 160 species 24 varieties 1 subspecies in Maengseon-ni, and 196 taxa 79 families 156 genera 172 species 24 varieties 1 subspecies and 1 forms in Yesong-ni. Conservation measures of evergreen broad-leaved forests in the areas, at both the habitat and species levels, are urgently needed to mitigate against destructive human activities, such as unreasonable management and trampling.

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Distribution of Ants(Hymenoptera: Formicidae) by Vegetation in Mt. Gariwangsan from Korea (식생별에 따른 가리왕산의 개미분포)

  • Lyu, Dong-Pyo
    • Korean Journal of Environment and Ecology
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    • v.27 no.2
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    • pp.204-208
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    • 2013
  • The ant fauna in Mt. Gariwangsan was composed of 39 species 24 genera 5 subfamilies. The collected ants in Mt. Gariwangsan were Subfamily Myrmicinae(16 species 11 genera), Subfamily Formicinae(15 species 5 genera), Subfamily Ponerinae(6 species 4 genera), Subfamily Amblyoponinae(1 species 1 genera), and Subfamily Dolichoderrinae(1 species 1 genera). Ant fauna by vegetation in Mt. Gariwangsan, 36 species 23 genera were collected in broadleaf tree areas in which Quercus mongolica, Fraxinus rhynchophylla, Tilia amurensis, and Cornus controversa were dominant species. Paratrechina flavipes and Myrmica kotokui were dominant species. 13 species 12 genera were collected only in broadleaf tree areas. In the coniferous tree areas where Pinus densiflora, Pinus korainensis, and Larix kaempferi were dominant, 24 species 15 genera of ants in total were collected. Pachycondyla chinensis and Paratrechina flavipes were dominant species. 4 species 3 genera were collected only in the coniferous tree areas. Paratrechina flavipes was dominant even in the areas in which Camponotus japonicas and Formica japonica had been assumed to be dominant. Specifically, the higher the land was, the rarer Ponerinae and Dolichoderinae were observed. The common species observed in both areas were 20 species 13 genera. Of these ants, Paratrechina flavipes(Subfamily Formicinae) and Myrmica kotokui(Subfamily Myrmicinae) were distinctive ants. With regard to the current state of colony of these species, Paratrechina flavipes was dominant in lowland areas. Myrmica kotokui, on the other hand, was dominant in highland areas.

Seasonal Variation of Phytoplankton and Environmental Factors in Kyungpo Lake (경포호의 식물플랑크톤과 환경요인의 계절적 변동)

  • 이은주;김형섭;이규송
    • Korean Journal of Environmental Biology
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    • v.18 no.1
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    • pp.95-104
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    • 2000
  • In order to elucidate chatracteristics of water quality and seasonal dynamics of phytoplankton community in Kyungpo lake, the weekly variation of algal population and 11 environmental factors were investigated from March 1998 to February 1999. A total 121 species of phytoplankton belonged to 57 genera, 4 genera 7 species of the Euglenophyceae, 1 genera 2 species of the Chrysophyceae, 2 genera 3 species of the Cryptophyceae, 1 genera 1 species of the Dinophyceae, 6 genera 9 species of the Cyanophyceae, 28 genera 78 species of the Bacillario-phyceae and 15 genera 21 species of the Chlorophyceae, was identified. Cryptomonas sp., Chamydomonas sp., Nitzschia frustulum, Oscillatoria sp., Lyngbya sp, and Dictyosphaerium pulchellum occurred successively as dominant phytoplankton species from March 1998 to February 1999. Density of phytoplankton cell number showed the peak in early April when Chlamydomoas sp. was dominated. The diversity index of phytoplankton community showed low values in the dominating period of Cryptomonas sp. and Chlamydomonas sp. The concentration of chlorophyll a fluctuated between 1.09 and 107.7$\mu\textrm{g}$ㆍ1$^{-1}$. Water temperature, salinity, DO, conduc tivity and SS were ranged 0.5-27.8$^{\circ}C$, 2.8-25.2 ppt, 4.62-19.21 mgO$_2$ㆍ1$^{-1}$, 5.33-34.76 mS/cm and 0.017-0.184 mgㆍ1$^{-1}$, respectively. Annual means of Secchi disc transparency was 36cm and thai of pH value was 8.5. The concentrations of PO$_4$-P was ranged 0.0012-0.077 mgㆍ1$^{-1}$ , and showed high value from August to October. The concentrations of NO$_2$-N, NO$_3$-N and NH$_4$-N was ranged 0.0011-0.1 mgㆍ1$^{-1}$, 0.074-3.33mgㆍ1$^{-1}$ and 0.0024-0.259 mgㆍ1$^{-1}$, respectively. Among environmental factors, water temperature was negatively correlated with DO, salinity and conductivity, DO was positively correlated with salinity and conductivity. Chlorophyll a, one of the indicies of eutropication in lake, was negatively correlated with NH$_4$-N. The cell density of Cryptomonas sp., which was the most dominant species in this lake, was negatively correlated with transparency. [Kyoungpo lake, Phytoplankton, Cryptomonas sp. , Chlamydomonas sp., Seasonal variation].

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Distribution of Fungi in the Sandy Soil of Egyptian Beaches

  • Migahed, Fatma F.
    • Mycobiology
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    • v.31 no.2
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    • pp.61-67
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    • 2003
  • The mycobiota of the sandy soil of Egyptian beaches was investigated in thirty six sand samples collected from nine different localities in Egypt. The filamentous fungi were identified and assigned to thirty one genera and fifty one species. Greater populations as well as a wider spectrum range of fungal genera and species were obtained in sandy soil of Alexandria beach while Balteem beach was the poorest one. The total count of the genus or species was not depended upon cases of isolation. Most of the genera detected belonged to the Deuteromycotina with fewer proportions belonging to the Ascomycotina and Zygomycotina. The genera of highest incidence and their respective numbers of species were: Penicillium(35.72%, 6 species) and Aspergillus(30.28%, 16 species). The species which showed the highest incidence in all cases was P chrysogenum, followed by P citrinum, A. flavus, Chaetomium murorum and Trichoderma viride. A few number of other genera and species were also detected.

Mycota of Well Waters in Assiut, Egypt

  • El-Nagdy, M.A.
    • Mycobiology
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    • v.28 no.4
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    • pp.197-201
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    • 2000
  • The distribution and occurrence of aquatic zoosporic and terrestrial fungi were investigated in 21 well waters in Assiut governorate, Egypt. Using a zoospore capture technique, 923 colonies of aquatic freshwater fungi were recovered from well waters, out of which 811 colonies reached sexual maturity. These colonies were assigned to 23 species which belong to 11 genera. The most common genera were Achlya, Saprolegnia and Dictyuchus. Using two types of media, 35 species in addition to 2 varieties of terrestrial fungi which belong to 18 genera were also recovered. The most frequent glucophilic genera (recovered on glucose-Czapek's agar at $28^{\circ}C$) were Aspergillus, Penicillium and Fusarium. The results obtained on cellulose-Czapek's agar at $2^{\circ}C$ were basically similar to those on glucose agar and the most frequent genera were Aspergillus, Penicillium and Fusarium followed by Chaetomium and Cephalosporium.

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Ultrastructural observations of vegetative cells of two new genera in the Erythropeltidales (Compsopogonophyceae, Rhodophyta): Pseudoerythrocladia and Madagascaria

  • Scott, Joseph L.;Orlova, Evguenia;West, John A.
    • ALGAE
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    • v.25 no.1
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    • pp.11-15
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    • 2010
  • Two new genera of red algae, Madagascaria erythrocladioides West et Zuccarello and Pseudoerythrocladia kornmannii West et Kikuchi (Erythropeltidales, Compsopogonophyceae, Rhodophyta), were previously described using molecular analysis and confocal microscopy of isolates in laboratory culture. We examined the ultrastructure of both genera to compare with ultrastructure of other members of the class Compsopogonophyceae. Both genera had Golgi bodies not associated with mitochondria and chloroplasts with a peripheral encircling thylakoid similar to all other members of the class studied thus far. Confocal autofluorescence images showed that Madagascaria has a single round central pyrenoid while Pseudoerythrocladia has no pyrenoid. Our electron microscopic work confirms these initial observations. Tables and keys are presented that assist in interpreting cellular details of genera in the class Compsopogonophyceae.

Trematodes of the family Opisthorchiidae: a minireview

  • King, Sandie;Scholz, Tomas
    • Parasites, Hosts and Diseases
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    • v.39 no.3
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    • pp.209-221
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    • 2001
  • Examination of the original descriptions of genera placed within the family Oposthorchiidae has revealed that only 33 of the original 43 genera are valid members of this family Further study of these descriptions should also reveal that many of the subfamilies are also invalid. With reference to the original descriptions of these genera, and subsequent literature, a brief survey of the family has been compiled. Information on the spectrum of definitive hosts that these helminths parasitize is provided, as well as information on the life cycles, geographic distribution, and socioeconomic impacts of the family. More in-depth information is given on those species that are of particular medical importance; namely, Clonorchis sinensis, Opisthorchis viverrini and O. felineus. The final aims of this review are to provide information on the entire genera of the family Opisthorchiidae, which will aid understanding of the phylogenetic relationships not only within the family, but also within the Class Trematoda.

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Specific Diversity of Indigenous Mushroom at Moonsu and Chungryang Mountain in Bonghwa-Gun, Kyungpook-Do, Korea (봉화군 문수산과 청량산일대에 자생하는 버섯의 종다양성)

  • Hur, Tae-Chul;Joo, Sung-Hyun
    • Current Research on Agriculture and Life Sciences
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    • v.22
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    • pp.29-39
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    • 2004
  • This study was conducted to provide a fundamental information for commercial, medical usage and mushroom gene preservation and to investigate the diversity of indigenous mushroom on Bonghwa-Gun. A total of 3 classes 2 subclasses 13 orders 45 families 64 genera and 118 species including saprophytic and ectomycorrhizal fungi was investigated. The mushroooms are classified into 17 families 32 genera and 80 species in Agaricales, 13 families 17 genera and 22 species in Aphllophorales, 2 families 2 genera and 2 species in Heterobasidiomycetes, 9 families 9 genera and 10 species in Gasteromycetidae. There were edible mushroom of 46 species at Moonsu and Chungryang Mountain. The mushroom occurrence was closely related to vegetation and soil environmental conditions.

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