Vietnam Journal of Biotechnology
2815-5955
2815-5912
Việt Nam
Cơ quản chủ quản: N/A
Lĩnh vực:
Các bài báo tiêu biểu
Một số yếu tố ảnh hưởng đến sinh khối cuả cây sâm Ngọc Linh (Panax Vietnamensis Ha et Grushv.) nuôi cấy In Vitro và bước đầu phân tích hàm lượng Saponin
Tập 20 Số 1 - 2011
" Panax vietnamensis Ha et Gmshv., a rare Panax genus of Vietnam, is a well known Vietnamese ginseng (Ngoc Linh Ginseng) for its rich pharmaceutical compositions, most importantly saponin. In order to obtain a stable and saponin-rich biomass of P. vietnamensis, a tissue culture procedure was established. A TLC analysis of saponin composition was also conducted to investigate the presence of saponi......
#Panax vieMamensis #callus #regeneration #shoot #root #saponin
Silver nanoparticles enhanced efficiency of explant surface disinfection and somatic embryogenesis in Begonia tuberous via thin cell layer culture
Tập 19 Số 2 - 2021
In vitro culture establishment is one of the most important stages in micropropagation. The disinfectant effectiveness depends on the type of surface disinfectant, concentration and the time treatment. In this initial study, silver nanoparticles (AgNPs) were used as a disinfectant for petioles, flower stalks and stems of Begonia tuberous. In addition, thin cell layer culture (TCL) technique has be......
#Begonia #disinfection #silver nanoparticles #somatic embryogenesis
Study on silver nanoparticles as a novel explant disinfectant for micropropagation of African violet (Saintpaulia ionantha H. Wendl.)
Tập 16 Số 1 - 2018
Surface sterilization is one of the most important steps in preparation of explants for micropropagation, because microbial contaminations present a major challenge to the initiation and maintenance of viable in vitro cultures. Most of popular surface disinfectants are considered as highly toxic influence either directly or indirectly to health and environment. Previous studies have demonstrated t......
Quan hệ di truyên và định loại các loài thuộc họ cá Cóc salamandridae (Amphibia: Caudata) ở Việt Nam
Tập 20 Số 1 - 2011
Five species of the family Salamandridae are currently recognized from Vietnam: Paramesotriton deloustali from Lao Cai, Ha Giang, Tuyen Quang, Bac Kan, Quang Ninh and Vinh Phuc provinces; P.guanxiensis from Cao Bang province; Tylototriton asperrimus from Ha Giang and Lao Cai provinces; T.verrucosus from Lai Chau province; and T. vietnamensis from Bac Giang, Phu Tho, and Lang Son provinces. Specime......
#Salamander #taxonomy #phylogenetic relationship #Salamandridae #Paramesotriton #Tylototriton #Vietnam
Honeybee products as potential bioindicators of heavy metals contamination from Northern Vietnam
Tập 18 Số 2 - 2020
Contamination of heavy metals (As, Cd, Hg, Pb and Sn) in honeybee products (Apis cerana) from Northern Vietnam is determined. The study was carried out in two main harvesting seasons of beekeeper farms (April and October), over two years (2018-2019). A total of 72 samples from 24 honeybee hives from 8 provinces and one city were collected. The results showed that the quality of three products in n......
#heavy metal #contamination #Apis cerana #honey #pollen #beewax
Molecular markers for analysis of plant genetic diversity
Tập 18 Số 4 - 2020
Genetic diversity plays an important role in diversity conservation at multiple levels and supports to monitor and assess genetic variation. In plants, genetic diversity provides the ability to adapt and respond to environmental conditions that helps plants to survive through changing environments. Genetic diversity analyses based on molecular genetic markers are effective tools for conservation a......
#DNA sequencing analysis #genetic diversity #molecular markers #SNP #SSR
Stimulation of shoot regeneration through leaf thin cell layer culture of Passiflora edulis Sims.
Tập 16 Số 4 - 2018
Passiflora edulis Sims. belonged to the genus Passiflora, is one of the important economic crops of the world as well as Vietnam. Nowadays, the commercial P. edulis is mainly propagated by seeds, cuttings and grafting; however, these methods still have some limitations such as genetic degradation and heterogeneity and the spread of pathogenic viruses. Micro-propagation has been used for clonal bre......
#leaf explant #Passiflora edulis #shoot regeneration #thin cell layer
Sự hình thành phôi vô tính từ mô sẹo có nguồn gốc từ lớp mỏng tế bào lá cắt ngang ở sâm Việt Nam (Panax vietnamensis Ha et Grushv.)
Tập 14 Số 1 - 2017
Đến nay, chưa có báo cáo nào công bố về sự tái sinh cây thông qua quá trình phát sinh phôi vô tính ở sâm Việt Nam. Trong nghiên cứu này, khả năng phát sinh phôi vô tính gián tiếp qua sự hình thành mô sẹo từ việc nuôi cấy mẫu lớp mỏng tế bào cắt ngang của lá (tTCL) ở sâm Việt Nam (Panax vietnamensis Ha et Grushv.) đã được tiến hành nghiên cứu. Các chất điều hòa sinh trưởng hực vật α-naphthaleneacet......
#Callogenesis #Panax vietnamensis #somatic embryos #thin cell layers
Chemical composition and cytotoxic activity of the essential oils of Cymbopogon citratus L. Grown in phu tho province
Tập 14 Số 4 - 2016
Culms and leaves of Cymbopogon citratus L. were collected from two regions of Phu Tho province (Thanh Son and Phu Ninh) and used as materials for essential oil extraction. Oils obtained were steam-distilled, analyzed for chemical composition and evaluated for cytotoxic activity against three different cancer cell lines. The GC/MS analysis showed that citral is the major content of the steam-distil......
#Cymbopogon citratus L. #essential oil #chemical composition #cytotoxic activity
Cloning, expression and purification of m-cell specific binding peptide (CO1) fused with GFP
Tập 14 Số 4 - 2016
Despite many advantages over injection vaccines such as cost effectiveness, safety and easy to use, and so on, oral vaccines are negligibly concerned. This is mostly because of the availability of vast surface in the gastro-intestinal tract, thereby requiring lot of antigens which could hamper their potential. To circumvent this issue, a novel strategy for targeting antigens to M cells (microfold ......
#cell targeting #Co1 peptide #GFP #M cell #oral vaccine #overlap extension PCR