- Plant and Fungal Species Descriptions
- Plant Diversity and Evolution
- Plant and animal studies
- Fern and Epiphyte Biology
- Plant Parasitism and Resistance
- Ethnobotanical and Medicinal Plants Studies
- Plant Taxonomy and Phylogenetics
- Genetic diversity and population structure
- Ecology and Vegetation Dynamics Studies
- Species Distribution and Climate Change
- Genomics and Phylogenetic Studies
- Ginger and Zingiberaceae research
- Natural product bioactivities and synthesis
- Plant Pathogens and Fungal Diseases
- Ecology and Conservation Studies
- Sugarcane Cultivation and Processing
- Traditional and Medicinal Uses of Annonaceae
- Microbial Community Ecology and Physiology
- Natural Compound Pharmacology Studies
- Wood and Agarwood Research
- Phytochemistry and Biological Activities
- Botany, Ecology, and Taxonomy Studies
- Alkaloids: synthesis and pharmacology
- Agriculture and Rural Development Research
- Biofuel production and bioconversion
Kagoshima University
2018-2024
National University of Laos
2024
Weatherford College
2023
Kyushu University
2011-2021
Kirinyaga University
2017
Japan International Research Center for Agricultural Sciences
2011
Abstract The classification of the legume family proposed here addresses long‐known non‐monophyly traditionally recognised subfamily Caesalpinioideae, by recognising six robustly supported monophyletic subfamilies. This new uses as its framework most comprehensive phylogenetic analyses legumes to date, based on plastid matK gene sequences, and including near‐complete sampling genera (698 currently 765 genera) ca. 20% (3696) known species. region has been widely sequenced across legumes, in...
A new species of Strobilanthes (Acanthaceae), S. bolavenensis, is described from Bolaven Plateau, southern Laos. Photos and illustration are given together with information habitat, ecology, vernacular name preliminary conservation assessment based on IUCN criteria.
Thottea aroangensis T.A. Le, D. Dien & Tagane (Aristolochiaceae) is described based on the specimen collected from A Roang commune, Luoi district, Thua Thien Hue province, central Vietnam. This species characterized by subshrub habit 70–90 cm tall, inflorescence at base of stem close to ground level, campanulate and obscurely lobed perianth ca. 2.6 long, inside tube with creamy white patches, 20 stamens in 2 whorls, which combination it clearly distinguished other Vietnam its surrounding...
The new species Beilschmiedia danhkyii (Lauraceae) is described from Ha Tinh Province, Central Highland of Vietnam. characterized by ferruginous hairy terminal buds, branchlets and abaxial surfaces lamina, subopposite leaves, adaxially impressed midrib secondary veins, short inflorescence 2–3(–5) cm long, large ellipsoid fruits 5–8 which combination it cleary distinguished the other in region. Taxonomic description, a table comparing morphological characters allied species, color photo-plate...
The deciduous habit of northern temperate trees and shrubs provides one the most obvious examples convergent evolution, but how did it evolve? Hypotheses based on fossil record posit that deciduousness evolved first in response to drought or darkness preadapted certain lineages as cold climates spread. An alternative is evergreens established freezing environments later habit. We monitored phenological patterns 20 species Viburnum spanning tropical, lucidophyllous (subtropical montane warm...
Two new species of Sonerila Roxb. (Melastomataceae), S. erectifolia Phonep., Soulad. & Tagane sp. nov. from southern Laos, and souvannii Phonep. central are described illustrated. Comparisons with morphologically similar presented, along ecological information preliminary conservation status. A key to the in Laos is also provided.
Memecylon longipedunculatum, a new species of Melastomataceae, is described and illustrated. The known to occur in Khanh Hoa Ninh Thuan provinces South Central Coast Vietnam, where it restricted low dry coastal forests scrubby vegetation. description based on the authors’ original gatherings as well historical collections made century ago. distinguishable from most its congeners by small leaves (1.2–5.7 × 0.7–2.4 cm) with obtuse or sometimes emarginate apices, long peduncles (1–2.7 cm long),...
A new species of Nymphanthus (Phyllanthaceae), N. adenophorus from Ninh Thuan Province, central Vietnam, is described and illustrated, along with its vernacular name preliminary conservation status. The similar to pireyi nanellus, but distinguished by terete shorter floriferous branchlets fewer leaves, larger leaf blades, faintly visible lateral veins, longer pedicels male flowers, accordion-folded discs pistillate flowers.
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A new species of Tetrastigma, T. fruticosum (Vitaceae), from the limestone karst in Khammouane Province, central Laos, is described. The can be distinguished previously known genus by a combination its shrubby habit, absence tendrils, pedately 5-foliolate leaves (rarely 4, 6, or 7-foliolate) with shallowly emarginated leaflet, and 1-seeded oblong-ellipsoid fruits. description, photographs, vernacular name preliminary conservation status are provided for it.
In Southeast Asia, approximately 408,000 km2 is covered with limestone, most of which was originally fragmented in distribution (Clements et al. 2006). Laos, the limestone area about 30,000 km2, covering ca. 12.6% land northern and central Laos. Khammouane Province, one core sites country where two main national protected areas, Phou Hin Poun National Protected Area Nam No Park, are well known. addition, Sanam-Phou Pha Marn Provincial (hereafter PPA) covers an 1,500 Rock Viewpoint a huge PPA.
Two new species of Lasianthus (Rubiaceae), L. trongii and hoabinhensis, are described from Vietnam. (sect. Nudiflorae) is closely related to tamdaoensis but distinguished by its glabrous branches, shorter petioles, 4 calyx lobes, smaller corolla, drupes reddish-orange, larger, with pyrenes. hoabinhensis Lasianthus) similar attenuatus differs in having larger leaf blades, more secondary veins 9–11 pairs, 6 or 7 In addition, laoticus, previously known only southern Laos, recorded Vietnam for...
Lignin is a major component of the secondary cell walls vascular plants, and an obstacle in conversion plant wall polysaccharides into biofuels. Erianthus spp. are large gramineous plants interest as potential energy sources. However, lignocelluloses have not been chemically characterized. In this study, we analysed lignins, related compounds, enzymatic saccharification efficiencies, minerals ash inner outer parts internode, leaf blade sheath arundinaceus. Lignins four organs consisted...
Ecological communities including tropical rainforest are rapidly changing under various disturbances caused by increasing human activities. Recently in Cambodia, illegal logging and clear-felling for agriculture have been increasing. Here, we study the effects of logging, mortality recruitment plot trees on phylogenetic community structure 32 plots Kampong Thom, Cambodia. Each was 0.25 ha; 28 were established primary evergreen forests four secondary dry deciduous forests. Measurements made...
Abstract The family Thismiaceae, known as “fairy lanterns” for their urn- or bell-shaped flowers with basally fused tepals, consists of non-photosynthetic flowering monocots mainly in tropical regions, extending into subtropical and temperate areas. Here, we propose a new mycoheterotrophic genus, Relictithismia Suetsugu & Tagane (Thismiaceae), its monotypic species kimotsukiensis Suetsugu, Yas.Nakam. from Kimotsuki Mountains the Osumi Peninsula, Kagoshima Prefecture, Kyushu Island,...
The taxonomy of Quercus langbianensis and its relatives in Vietnam Cambodia have been revised based on evidence obtained from field observations, morphological comparison herbarium specimens molecular analyses using both classic next generation DNA markers. Based Bayesian inference rbcL, matK ITS regions Neighbour-joining tree genome-wide sequences amplified with multiplexed inter-simple sequence repeat (ISSR) primers (MIG-seq), the authors recognised ten species complex Cambodia, three...
Didymocarpus middletonii Souvann., Soulad. & Tagane, a new species of Gesneriaceae from Nam Kading National Protected Area, is described and illustrated. The morphologically similar to brevicalyx, D. formosus puhoatensis but distinguished the three by its fewer-flowered inflorescence, longer pedicel, urceolate multicellular eglandular hairy calyx. Based on latest IUCN criteria, proposed be Critically Endangered (CR). Our record represents genus for flora Laos.