In this study, adventitious and hairy roots of Vietnamese ginseng were used to assess the ability of growth and saponin accumulation. Adventitious roots were derived from leaf samples in vitro (1.0 x 1.0 cm of size) cultured on SH medium supplemented with 5.0 mg.l-1 IBA, 30 g.l-1 sucrose, 8 g.l-1 agar, pH 5.8, and subcultured on the same medium ...
6 trang | Chia sẻ: yendt2356 | Ngày: 30/11/2020 | Lượt xem: 935 | Lượt tải: 0
Snake venom is a mixture of different components with a great variety of biological effects. Some components in snake venom have been found to act specifically and potently on their targets. Unlike the venom of Naja naja, Echis carinatus, Vipera russellii which are widely used, there is little attention has been given to Ophiophagus hannah even ...
6 trang | Chia sẻ: yendt2356 | Ngày: 30/11/2020 | Lượt xem: 970 | Lượt tải: 0
The small intestinal fluke, Haplorchis taichui Nishigori, 1924, belonging to genus Haplorchis (family Heterophyidae, class Trematoda, phylum Platyhelminthes), is a zoonotic pathogen causing disease in humans and animals. Complete mitochondrial genome (mtDNA) of H. taichui (strain HTAQT, collected from Quang Tri) was obtained and characterized fo...
10 trang | Chia sẻ: yendt2356 | Ngày: 30/11/2020 | Lượt xem: 860 | Lượt tải: 0
Psoriasis is a chronic dermatitis disease. Although the disease is not dangerous but it affects patients’s life in many aspects and involving a large number of people in the world. Besides that, psoriasis related to many other diseases such as metabolic disorder, diabetes, cardiovascular disease or can develop into servere arthritis and psoriasi...
11 trang | Chia sẻ: yendt2356 | Ngày: 30/11/2020 | Lượt xem: 708 | Lượt tải: 0
Ngoc Linh ginseng also known as Vietnamese ginseng (Panax Vietnamensis Ha et Grushv.) is a perennial medicinal plant. This plant is extremely rare and belongs to the Araliaceae family. Scientists are focusing on studies of Ngoc Linh ginseng nowadays. In this research, the effects of 2,4-dichlorophenoxyacetic acid (2,4- D), α-naphthaleneacetic ac...
12 trang | Chia sẻ: yendt2356 | Ngày: 30/11/2020 | Lượt xem: 862 | Lượt tải: 0
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. Cá...
11 trang | Chia sẻ: yendt2356 | Ngày: 30/11/2020 | Lượt xem: 692 | Lượt tải: 0
Panax stipuleanatus H.T.Tsai et K.M.Feng which belongs to the genus Panax (Araliaceae family) is an valuable medicinal herbs in Vietnam and China. In the rhizome of Panax stipuleanatus H.T.Tsai et K.M.Feng contains many olean-type triterpenoid saponins, which can improve mental stamina and reduces risks of cancers in humans. Up to now, there is ...
6 trang | Chia sẻ: yendt2356 | Ngày: 30/11/2020 | Lượt xem: 772 | Lượt tải: 0
Microbial metagenome DNA in the guts of Coptotermes gestroi has been extracted and sequenced by metagenomic techniques. In previous studies, we acquired and sequenced more than 5 Gb of DNA metagenome DNA of the termite gut microbiota by next-generation sequencing (Illumina). Software MGA (MetaGeneAnnotator) exploited 125.431 open reading frames ...
9 trang | Chia sẻ: yendt2356 | Ngày: 30/11/2020 | Lượt xem: 784 | Lượt tải: 0
Staphylococcus aureus (S. aureus) produces 11 types of toxins and more than 20 different Staphylococcal enterotoxins (SEs), including SEA to SEE, SEG to SER and SEU. Among them, enterotoxin type B (Staphylococcal enterotoxin B - SEB) is quite heat stable and causes gastrointestinal diseases in food poisoning. The symptoms of SEB intoxication beg...
6 trang | Chia sẻ: yendt2356 | Ngày: 30/11/2020 | Lượt xem: 877 | Lượt tải: 0
SUMMARY Dendrobium Sonia is a popular orchid and used for many purposes in Vietnam. In this study, the transformation is set on protocorm like bodies (PLBs) mediated by Agrobacterium tumefaciens containing vector with GUS gene and kanamycin resistance gene. The main factors influencing the transformation including medium for regeneration and gr...
9 trang | Chia sẻ: thucuc2301 | Ngày: 30/11/2020 | Lượt xem: 728 | Lượt tải: 0