Tạo chủng vi khuẩn escherichia coli biểu hiện tái tổ hợp cis-Prenyltransferase 1 có khả năng tổng hợp neryl pyrophosphate - La Ngọc Thùy VânSUMMARY Neryl pyrophosphate (NPP), also known as neryl diphosphate (NDP), is the cis isomer of genaryl pyrophosphate (GPP). Previously, it has been shown that monoterpene synthases found in plants use GPP as a substrate for the synthesis of monoterpenes and monoterpenoids. However, in 2009, Schilmiller identified a new monoterpene synthase gene ...
7 trang | Chia sẻ: thucuc2301 | Ngày: 01/12/2020 | Lượt xem: 786 | Lượt tải: 0
Leaf litter fungi isolated in Bach Ma national park, Viet NamTwo isolation methods we used were applied for the first time to isolate leaf litter fungi in Viet Nam. However, some fungi isolated with the surface disinfection isolation method, such as: Trichoderma spp., Chloridium spp., Penicillium spp., and Clonostachys spp. are common in soil in Viet Nam as they were all recorded before in Viet Nam. All f...
8 trang | Chia sẻ: yendt2356 | Ngày: 01/12/2020 | Lượt xem: 641 | Lượt tải: 0
Khả năng xử lý sulfide của chủng vi khuẩn hiếu khí được phân lập từ bãi rác Nam Sơn, Sóc Sơn, Hà Nội - Đỗ Thị Tố UyênSUMMARY Sulfide is an inorganic of sulfur, which is the least oxidation. It can be oxidized by oxygen in the air or by microorganisms. The presense of sulfide in waste results in rotten egg odor, which greatly impact the environment and living organisms. The BNS4 strain has the ability to oxidize sulfur was isolated from mud from waste lakes suc...
7 trang | Chia sẻ: thucuc2301 | Ngày: 01/12/2020 | Lượt xem: 774 | Lượt tải: 0
Selection of indigenous strains (paecilomyces lilacinus) parasitize Meloidogyne spp. isolated from Ba Ria – Vung Tau provinceThe time of 8 strains will be infected on egg masses longer than female nematode (Table 5). Egg mass comprised of many eggs which were captured by gelatinous masses with a glycoprotein matrix (produced by rectal glands in the female, keeping the eggs together and protecting them against environmental extremes and predation). In addition to provi...
9 trang | Chia sẻ: yendt2356 | Ngày: 01/12/2020 | Lượt xem: 673 | Lượt tải: 0
Tinh sạch và đánh giá hoạt tính kháng khuẩn của sắc tố đỏ prodigiosin từ serratia marcescens - Nguyễn Sỹ Lê ThanhSUMMARY Prodigiosin (Pg) is a secondary metabolite alkaloid with anti cancer, immunosuppressive, antifungal properties. Pg is a red pigment, which isolated from bacteria, such as Serratia marcescens, Hahella chejuensis, Vibrio psychroerythrus and Streptomyces coelicolor. In present study, we focus on selection of culture medium for effective pig...
7 trang | Chia sẻ: thucuc2301 | Ngày: 01/12/2020 | Lượt xem: 730 | Lượt tải: 0
Sàng lọc và phân tích bản chất hóa học của các hoạt chất kháng nấm từ xạ khuẩn - Trần Thị Đức PhươngSUMMARY Fungal infections are a serious problem in agriculture, health and food preservation industry. The chemically synthesized compounds are able to inhibit fungi in a certain degree. However, these compounds have a lot of disadvantages such as lack of specificity and can accumulate in the environment, some compounds are even harmful to human...
8 trang | Chia sẻ: thucuc2301 | Ngày: 01/12/2020 | Lượt xem: 743 | Lượt tải: 0
Rhodosporidium sp. growth in molasses medium and extraction of its astaxanthin by using HCLIn this research, the results show that astaxanthin content of Rhodosporidium sp. 1.3 times as lower as wild yeast Phaffia rhodozyma ATTCC2402 was fermented to produce 303.3 μg/g of astaxanthin content [18] (Figures 13 and 14, Table 2). In the experiment of Tong and Tran [19], yeast Phaffia rhodozyma NT5 was grown in liquid culture containing sa...
11 trang | Chia sẻ: yendt2356 | Ngày: 01/12/2020 | Lượt xem: 871 | Lượt tải: 0
Tạo dòng nấm men saccharomyces cerevisiae mang dung hợp gen nhằm biểu hiện reutericin trên bề mặt tế bào - Nguyễn Hiếu NghĩaSUMMARY Reutericin is group IIc bacteriocin, heat-labile bacteriocin which is produced by Lactobacillus reuteri LA6 and applied in many food industries. The seminarians bacteriocin derived naturally in low levels. Therefore, several different researches have been carried out in order to increase Reutericin expression level by recombinant techniq...
6 trang | Chia sẻ: thucuc2301 | Ngày: 01/12/2020 | Lượt xem: 832 | Lượt tải: 0
Nghiên cứu tác động của dmso trong biệt hóa tạo tế bào giống tế bào gan từ gốc cuống rốn - Nguyễn Văn HạnhSUMMARY Recent studies indicated that DMSO can induce differentiation of mesenchymal stem cells derived from bone marrow, adipose tissue, umbilical cord blood, umbilical cord tissues into hepatocyte-like cells. However, the effect of DMSO is not similar in reports. In this study, umbilical cord cells were isolated and analyzed the expression of ...
6 trang | Chia sẻ: thucuc2301 | Ngày: 01/12/2020 | Lượt xem: 761 | Lượt tải: 0
Arbuscular micorrhizal fungi association in two coffee farms with different cultivation at Lam DongBased on the colors and morphology, there are 48 types of spore in G1, 71 types in G2. There are several types of spores appeared in both farms such as RE7, W6, W1, Y5. There are many types of spores only appear in G2, mainly belong to Glomus. Some spore types appear with high density in each farm (1-4 spores / g soil): B7, RE10 in farm G1; Yc,...
7 trang | Chia sẻ: yendt2356 | Ngày: 01/12/2020 | Lượt xem: 709 | Lượt tải: 0
