scholarly journals Molecular systematics of the Asplenium nidus complex from Mt. Halimun National Park, Indonesia: evidence for reproductive isolation among three sympatric rbc L sequence types

2001 ◽  
Vol 88 (8) ◽  
pp. 1517-1522 ◽  
Author(s):  
Yoko Yatabe ◽  
Shigeo Masuyama ◽  
Dedy Darnaedi ◽  
Noriaki Murakami
Keyword(s):  
Reproductive Isolation ◽  
Molecular Systematics ◽  
National Park ◽  
Asplenium Nidus ◽  
Sequence Types ◽  
Rbc L

Molecular α-Taxonomy of a Morphologically Simple Fern Asplenium nidus Complex from Mt. Halimun National Park, Indonesia

2000 ◽  
pp. 53-66 ◽  
Author(s):  
Noriaki Murakami ◽  
Yoko Yatabe ◽  
Hisako Iwasaki ◽  
Dedy Darnaedi ◽  
Kunio Iwatsuki
Keyword(s):  
National Park ◽  
Asplenium Nidus

Molecular Systematics of the Genus Uvularia and Selected Liliales Based upon mat K and rbc L Gene Sequence Data

1998 ◽  
Vol 13 (2-3) ◽  
pp. 129-146 ◽  
Author(s):  
KAZUHIKO HAYASHI ◽  
SEIJI YOSHIDA ◽  
HIDETOSHI KATO ◽  
FREDERICK H. UTECH ◽  
DENNIS F. WHIGHAM ◽  
...  
Keyword(s):  
Molecular Systematics ◽  
Gene Sequence ◽  
Sequence Data ◽  
Rbc L ◽  
Gene Sequence Data

scholarly journals The Diversity of Ferns (Pteridophyta) in North Sumatera (Case Study: Batang Gadis National Park Resort 7 Sopotinjak)

2021 ◽  
Vol 4 (2) ◽  
pp. 152-161
Author(s):  
Nurul Lita Handayani ◽  
Husnarika Febriani ◽  
Melfa Aisyah Hutasuhut
Keyword(s):  
National Park ◽  
Diversity Index ◽  
Ground Cover ◽  
Survey Method ◽  
Asplenium Nidus ◽  
Research Types ◽  
Descriptive Survey ◽  
North Sumatra ◽  
Ground Cover Vegetation

Introduction: Ferns (Pteridophyta) are plant communities that have an ecological function as ground cover vegetation. The purpose of this research types of ferns (Pteridophyta) and the diversity index of ferns found in the Batang Gadis National Park Resort 7 Sopotinjak, Batang Natal Sub-district, Mandailing Natal District, North Sumatra Province. Materials and Methods: Descriptive survey method using quadratic plot of 24 plots in three transects. Results: It was found that five from 28 species of dominant fern were: Asplenium nidus, Asplenium normale, Shaeropteris glauca, Oleandra undulate, and Asplenium lobulatum. The diversity index of ferns (Pteridophyta) of 2.494 and was categorized as moderate, which means that the ferns (Pteridophyta) are stable, this indicates that the ecosystem is in a fairly balanced state.  

scholarly journals Identification and Inventory Pteridophyta in Mount Gede Pangrango National Park, Cibodas, West Java

2021 ◽  
Vol 6 (1) ◽  
pp. 47-56
Author(s):  
Imam Safir Alwan Nurza ◽  
Fitri Andriyani
Keyword(s):  
Vascular Plants ◽  
National Park ◽  
Research Method ◽  
Path Tracking ◽  
Research Results ◽  
Psilotum Nudum ◽  
Adiantum Capillus Veneris ◽  
Asplenium Nidus ◽  
Pityrogramma Calomelanos ◽  
High Diversity

The fern is one of the plants that is easily found in Indonesia and it has a high diversity and distribution. Ferns are among the simplest vascular plants and are classified into sporous cormophytes which already have transport vessels. The purpose of this research was to identify and inventory the types of ferns found in Mount Gede Pangrango National Park. The research method used was descriptive with path tracking techniques and observations on the morphology of the found ferns. The research results obtained that 29 species of ferns were found in the observations made, namely Ophioglosum reticulatum L., Selaginella caudata (Desv.) Spring, Davallia denticulata (Burm.) Mett. & Kuhn, Adiantum capillus-veneris L., Asplenium adiantum-nigrum L., Dryopteris sparsa (Ham.) Kuntze, Angiopteris evecta (G.Forst.) Hoffm., Dipteris conjugata Reinw., Pleopeltis heterocarpa Bedd., Phegopteris connectilis (Michx .) Watt, Asplenium nidus L., Polystichum acultatum Roth, Tectaria crenata Cav., Pityrogramma calomelanos (L.) Link, Pteris biaurita L., Nephrolepis biserrata (Sw.) Schott, Microsorum scolopendria (Burm.fil.) Copel., Cyathea contaminans (Wall. Ex Hook.) Copel., Davallia pentaphyla Blume, Dicksonia blumei (Kunze) T. Moore, Davallia trichomanoides Blume, Ctenitis vilis (Kunze) Ching, Thelypteris rudis (Kunze) Proctor, Adiantum hispidulum Sw., Bolbitis quoyana (Gaud.) Ching, Selaginella ornata (Hook & Grev.) Spring, Drynaria pleuridioides Presl, Gleichenia linearis (Burm.) CBCl., and Psilotum nudum (L.) P. Beauv. This research concludes that each fern plant has its characteristics that can be used as a basis for observing and identifying the types of ferns and making an inventory.

scholarly journals Formation of Multilayered Photosynthetic Biofilms in an Alkaline Thermal Spring in Yellowstone National Park, Wyoming

2009 ◽  
Vol 75 (8) ◽  
pp. 2464-2475 ◽  
Author(s):  
Sarah M. Boomer ◽  
Katherine L. Noll ◽  
Gill G. Geesey ◽  
Bryan E. Dutton
Keyword(s):  
Yellowstone National Park ◽  
National Park ◽  
Microbial Mats ◽  
Thermal Spring ◽  
High Abundance ◽  
Water Interface ◽  
Air Water Interface ◽  
Thermal Features ◽  
Glass Rods ◽  
Sequence Types

ABSTRACT In this study, glass rods suspended at the air-water interface in the runoff channel of Fairy Geyser, Yellowstone National Park, WY, were used as a substratum to promote the development of biofilms that resembled multilayered mat communities in the splash zone at the geyser's source. This approach enabled the establishment of the temporal relationship between the appearance of Cyanobacteria, which ultimately formed the outer green layer, and the development of a red underlayer containing Roseiflexus-like Chloroflexi. This is the first study to define time-dependent successional events involved in the development of differently colored layers within microbial mats associated with many thermal features in Yellowstone National Park. Initial (1-month) biofilms were localized below the air-water interface (60 to 70°C), and the majority of retrieved bacterial sequence types were similar to Synechococcus and Thermus isolates. Biofilms then shifted, becoming established at and above the air-water interface after 3 months. During winter sampling (6 to 8 months), distinct reddish orange microcolonies were observed, consistent with the appearance of Roseiflexus-like sequences and bacteriochlorophyll a pigment signatures. Additionally, populations of Cyanobacteria diversified to include both unicellular and filamentous cell and sequence types. Distinct green and red layers were observed at 13 months. Planctomycetes-like sequences were also retrieved in high abundance from final biofilm layers and winter samples. Finally, biomass associated with geyser vent water contained Roseiflexus-like sequence types, in addition to other high-abundance sequence types retrieved from biofilm samples, supporting the idea that geothermal water serves as an inoculum for these habitats.

Ultrastructural Localization of Phycocyanin in the Acidophilic, Thermophilic Alga, Cyanidium Caldarium

1973 ◽  
Vol 31 ◽  
pp. 462-463
Author(s):  
M. R. Edwards ◽  
J. D. Mainwaring
Keyword(s):  
Yellowstone National Park ◽  
National Park ◽  
Ultrastructural Localization ◽  
Review Of Literature ◽  
Cyanidium Caldarium ◽  
Taxonomic Rank ◽  
Thin Sections ◽  
Standard Methods ◽  
Laboratory Cultures

Although the general ultrastructure of Cyanidium caldarium, an acidophilic, thermophilic alga of questionable taxonomic rank, has been extensively studied (see review of literature in reference 1), some peculiar ultrastructural features of the chloroplast of this alga have not been noted by other investigators.Cells were collected and prepared for thin sections at the Yellowstone National Park and were also grown in laboratory cultures (45-52°C; pH 2-5). Fixation (glutaraldehyde-osmium), dehydration (ethanol), and embedding (Epon 812) were accomplished by standard methods. Replicas of frozenfracture d- etched cells were obtained in a Balzers apparatus. In addition, cells were examined after disruption in a French Press.

Evaluation of national park soundscapes based on aircraft type

2011 ◽  
Author(s):  
Levi Zitting ◽  
Britton Mace ◽  
Grant Corser
Keyword(s):  
National Park ◽  
Aircraft Type
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