Species collected

Bồng Nga truật, or Fingerroot, (Boesenbergia rotunda (L.) Mansf syn. Boesenbergia pandurata (Roxb.) Schltr.), also known as Ngải bún, is a common ginger species in Mekong Delta. Its tuber roots and rhizomes are often used to cook rice noodles as an alternative to Tumeric (Curcuma longa L.). This study was to primarily describe morphological and microanatomical figures of Bồng Nga truật, together with characteristic figures in rhizome and tuber root powder.

7p vikoch 27-06-2024 2 1   Download

The voucher herbarium specimens of this species collected in Vietnam are housed in the herbaria of the Vietnam National University of Forestry (VNF) and the Komarov Botanical Institute (LE). An amended morphological description of this species, accompanied by color photos, new data on ecology, and phenology are additionally provided.

6p viamancio 04-06-2024 1 0   Download

Alocasia odora is a common plant species in Viet Nam. A phytochemical investigation of the ethyl acetate extract (EtOAc) of A. odora rhizomes collected in Tuyen Quang province led to the isolation and determination of five compounds, including three alkaloids, alocasin A, hyrtiosin B, hyrtiosulawesine (3), one mono-phenol, phydroxycinamic acid, and one fatty acid, myristic acid.

7p viamancio 04-06-2024 4 0   Download

We provide the first country record of Opisthotropis durandi Teynié, Lottier, David, Nguyen & Vogel, 2014 from Vietnam based on a single snake specimen from Dien Bien Province. The species previously was only known from the Lao People’s Democratic Republic (Laos). DNA sequence data of a male specimen from Vietnam match those of a specimen of O. durandi from Phongsali province, Laos, and the newly collected individual from Vietnam also corresponds to O. durandi in terms of diagnostic morphological features, except for a slightly higher ventral number (185 versus 177−181).

7p dianmotminh02 03-05-2024 5 1   Download

The paper presents results on tree snails based on samples collected from various parts of Vietnam during the period of 2008–2022. As a result, 14 Amphidromus species were recorded, which increased the diversity of the genus in Vietnam to a total of 27 species. Four species were new country records including Amphidromus atricallosus perakensis, Amphidromus leucoxanthus, Amphidromus perversus natunensis, and Amphidromus areolabiatus. Almost all 14 species were found in the south, while only Amphidromus roseolabiatus was recorded in the north.

19p dianmotminh02 03-05-2024 2 1   Download

The objective of this study was to develop a technique for collecting and analyzing volatile arsenic species including arsine (AsH3), methyl arsine (CH3AsH2), dimethyl arsine (CH3)2AsH, and trimethyl arsine (CH3)3As emitted from paddy soil. The four volatile arsenic species were captured on AgNO3-impregnated sand then eluted and quantified. The AgNO3-impregnated sand was synthesized by crystallizing AgNO3 on 0.5-1 mm id. sandy particles at 70 oC.

6p dianmotminh02 03-05-2024 1 1   Download

This paper aims to provide information about the fractions of cadmium (Cd) and its distribution in surface sediment collected from bivalves harvesting areas in Binh Thuan province (Tuy Phong, Phan Thiet, Lagi). For this purpose, the sediment samples were collected monthly along with these areas in 2015–2016. To analyze the fractions of Cd, a five-step Tessier (1979) sequential extraction process was used, including Fraction 1 (Exchangeable), Fraction 2 (Bound to carbonate), Fraction 3 (Bound to iron-manganese oxide), Fraction 4 (Bound to organic compounds), and Fraction 5 (Residual).

10p dianmotminh02 03-05-2024 5 1   Download

In order to explore the importance of the Antheroporum genus in pharmaceutical applications, two bioactivities of A. harmandii plant extracts have been evaluated in this study. Antimicrobial and antioxidant activities of A. harmandii extracts will provide evidences for further chemical composition studies to detect new bioactive compounds from this species.

9p dianmotminh02 03-05-2024 4 1   Download

This study, a range of temperatures, lighting periods and salinity levels were examined for cyst hatching. The quality nauplii from optimized cyst hatching conditions were used to determine the toxicity of 26 methanol extracts of 24 poisonous plant species collected from the mountainous regions in Quang Tri province of Vietnam.

13p dianmotminh02 03-05-2024 2 1   Download

This study aims to collect and systematically document the traditional knowledge of poisonous plants by interviewing Van Kieu and Pa Ko ethnic communities in Quang Tri province. A total of 56 poisonous plant species (27 herbs, 15 shrubs and 14 woody plants) of flowering plants belonging to 26 families and 50 genera were found in the study site. Based on the Recorded Poisonous Plant Proportion (RPPP) values, 25 commonly recorded poisonous plants were selected for analyzing Fidelity Level (FL) and Informants Consensus Factor (ICF).

15p dianmotminh02 03-05-2024 2 1   Download

Jasminum binhchauense, a new species of the family Oleaceae, is described and illustrated. The species was collected during 2022–2023 from Binh Chau-Phuoc Buu Nature Reserve, Ba RiaVung Tau province, southern Vietnam. The new species differs from its congeners in its branchlets, leaf blade, petioles and calyx. A taxonomic description, a table comparing morphological characters of the allied species, and illustrations, a color photo-plate are provided.

9p dianmotminh02 03-05-2024 6 1   Download

The identification of most species relied on careful examination of their morphological characters. These findings collectively raised the Ophichthus genus’s representation in Vietnamese waters by introducing three previously undocumented species, raising the total count to 17 compared to prior research. Furthermore, this study provides a comprehensive key to aid in identifying the various Ophichthus species found in Vietnam.

14p dianmotminh02 03-05-2024 3 1   Download

Cuc Phuong is the oldest and most well-known National Park in Vietnam. With its large primary forest area and karst cave systems, it is assumed to be an ideal home to a highly diverse bat fauna. However, species diversity and echolocation of bats in this park are poorly characterized. Between April 2021 and April 2022, three bat surveys were conducted in the park with special attention on the species of the family Hipposideridae. The bat specimens collected previously from the park were also examined. A

9p dianmotminh02 03-05-2024 5 2   Download

In this study, three seagrass species collected in both rainy and dry seasons from the fields were analyzed to determine the total SP contents and different functional groups of SP. Quantification of total SP was done by photometric assays. High-performance anion-exchange chromatography with Pulsed Electrochemical Detection (HPAEC) determined different functional groups of SPs.

11p dianmotminh02 03-05-2024 4 2   Download

Ebook "North American crop wild relatives (Volume 1: Conservation strategies)" highlights efforts taken by these countries to conserve and use wild resources and provides essential information on best practices for collecting and conserving them. Numerous maps using up-to-date information and methods illustrate the distribution of important species, and supplement detailed description on the potential value these resources have to agriculture, as well as their conservation statuses and needs.

364p tracanhphuonghoa1007 22-04-2024 2 2   Download

Ebook "Reaction kinetics: Exercises, programs and theorems (Mathematica for deterministic and stochastic kinetics)" is aimed at chemists, engineers, and mathematicians interested in the interdisciplinary field of formal reaction kinetics, an important subfield of mathematical chemistry. Reaction kinetics studies the evolution of reacting species; it can predict time-dependent and stationary behavior, and it can provide a framework for collecting data economically.

476p tracanhphuonghoa1007 22-04-2024 7 2   Download

The study aims to assess the quality of soil and water environment in Phu My Species and Habitat Conservation Area, Kien Giang province. Water samples were collected at 16 sites in 7 different habitats (Lepironia articulata - Eleocharis dulcis habitat, Lepironia articulata - Melaleuca cajuputi habitat, Lepironia articulata - Ischaemum rugosum habitat, Eleocharis dulcis habitat,...

9p viohoyo 25-04-2024 2 2   Download

Eucalyptus is one of the important plant species for paper pulp, fuel wood, and timber. In this study, a hybrid Eucalyptus, U16 line, was investigated for rapid in vitro propagation. The apical and adventitious shoots served as initial explants. These were free-disease symptoms that were collected for surface sterilization.

8p vijaychest 24-04-2024 3 2   Download

The aim of this study is to investigate the species composition of bird, their distribution as well as threats to the species and its habitat. Line transect and mist net were used to collect data in the field. The results of the study reveal that there are 209 bird species belonging to 51 families, 17 orders in the park.

8p vilarry 01-04-2024 4 1   Download

Thuong Tien Nature reserve has high level of biodiversity. However, insect is one of the least study groups compared to other groups of animals in the reserve. In this study ant specimens were collected by using linetransect and point methods in Thuong Tien Nature reserve. Consequently, the researchers has initially identified 34 species of ants in 04 subfamilies (Dolichoderinae, Formicinae, Myrmicinae, and Ponerinae), and 23 genus. Of the 34 species, there are 10 ones that has been only determined for genus.

4p vilarry 01-04-2024 2 1   Download