Tuyển tập báo cáo các nghiên cứu khoa học quốc tế ngành y học dành cho các bạn tham khảo đề tài: A cytochrome P450 monooxygenase commonly used for negative selection in transgenic plants causes growth anomalies by disrupting brassinosteroid signaling
Yellow stem borer has been identified as a major insect pest of deepwater rice, causing severe yield losses. Bt gene(s)
from Bacillus thuringiensis have been proven very effective in pest resistance program. The use of transgenic plants
expressing Bt gene(s) is now occupied effective approach to control insect infestation. We have successfully introduced
a synthetic cryIA(b) gene into embryogenic calli of a deepwater indica rice variety, Vaidehi, by using the biolistic
method of transformation.
Plants that have features and characteristics of other species, other genera,
other families and even other kingdoms - such as bacteria and mammals -
have fascinated man since the dawn of history. Such phenomena, recorded
in several mythologies, were in the realm of miracles and the work of God.
Now they seem to become realities, though not exactly as described in the
RNA silencing is an epigenetic inhibition of gene expression and is guided
by small interfering RNAs. Sense transgene-induced post-transcriptional
gene silencing (S-PTGS) occurs in a portion of a transgenic plant popula-tion. When a sense transgene encoding a tobacco endoplasmic reticulum
x-3 fatty acid desaturase (NtFAD3) was introduced into tobacco plants,
an S-PTGS line, S44, was obtained.
Employing transgenic plants as alternative systems to the conventional
Escherichia coli, Pichia pastorisor baculovirus hosts to produce recombin-ant allergens may offer the possibility of having available edible vaccines in
the near future. In this study, two EF-hand-type Ca
from olive pollen, Ole e 3 and Ole e 8, were produced in transgenic Arabid-opsis thaliana plants.
We reported earlier that ectopic expression of CAP2, a single AP2 domain
containing transcription activator from chickpea (Cicer arietinum)in
tobacco improves growth and development, and tolerance to dehydration
and salt stress, of the transgenic plants.
In this study, we demonstrate that the folding and assembly
of IgG in transgenic tobacco plants is orchestrated by BiP
(binding protein), an endoplasmic reticulum resident chap-erone. Expression of BiP and calreticulin was examined in
transgenic tobacco plants that express immunoglobulin
chains, either singly or in combination to form IgG anti-body. BiP mRNA expression was lowest in wild-type
nontransformed plants and those that expressed immuno-globulin light chain alone.
Vaccine thực phẩm-Loại vaccine thế hệ mới
Nguyễn Hoàng Lộc Viện Tài nguyên, Môi trường và Công nghệ sinh học, Đại học Huế
1. Mở đầu
Thành công thật sự ngoạn mục của công nghệ gen thực vật bậc cao là tái sinh được cây chuyển gen (transgenic plant) đầu tiên vào đầu thập niên 1980. Đến nay, cây trồng biến đổi gen (genetically modified plant) đã và đang đóng góp rất nhiều trong việc đáp ứng nhu cầu lương thực và thực phẩm cho con người.
Nghiên cứu tạo giống bằng các phương pháp chuyển gen hiện đã thu được rất nhiều thành công ở các phòng thí nghiệm trên thế giới. Một số nghiên cứu về chuyển gen đã được triển khai nghiên cứu ở nước ta. Tuy nhiên, hầu hết các nghiên cứu đều tập trung vào một số đối tượng cây thực phẩm hoặc cây công nghiệp như: lúa, ngô, cà chua, bắp cải, đu đủ, bông vải… (Đặng Trọng Lương, 2001), (Lê Trần Bình, 2005)....
Transgenic plants result from the insertion of genetic material from another organism so that the plant will exhibit a desired trait. Recombinant DNA techniques (DNA formed by combining
Cây trồng chuyển gen là cây trồng ngoài vật chất di truyền sẵn có của nó còn được chuyển thêm vật liệu di truyền từ các sinh vật khác để tạo ra các tính trạng mong muốn bằng cách sử dụng kỹ thuật tái tổ hợp ADN
The most compelling and credible testimony to biotech crops is that during the 16 year period 1996 to 2011, millions of farmers in 29 countries worldwide, elected to make more than 100 million independent decisions to plant and replant an accumulated hectarage of more than 1.25 billion hectares – an area 25% larger than the total land mass of the US or China – there is one principal and overwhelming reason that underpins the trust and confidence of risk-averse farmers in biotechnology – biotech crops deliver substantial, and sustainable, socio-economic and environmental benefits.
Developmental biology: The anatomical tradition The Questions of Developmental Biology Anatomical Approaches to Developmental Biology Comparative Embryology Evolutionary Embryology Medical Embryology and Teratology Mathematical Modeling of Development Principles of Development:
These CNVs may show
association with certain clinical conditions and help in predicting risk and also
diagnosis. All these approaches have their merits and demerits and in general are
tedious, time consuming and need manpower with stringent handling. This naturally
prompted the development of several automated methods for culturing cells in mass
scale, use of membrane bioreactors, and image analysis for interpreting the cytogenetic
Agriculture and forestry are poised on the brink of a quantum leap forward
through the further application of exciting new tools such as genomics and
transgenic plants. In the near future, it will be possible to produce a higher
quantity of improved quality crops than even imagined just a few years ago.
In addition to feed and food, it will be possible to provide raw materials for
industrial uses. For example, cotton fibers, wood ligno-celluloses, corn
carbohydrates, soybean oils, and other plant constituents will be altered via
designed changes in metabolic pathways.
Tuyển tập báo cáo các nghiên cứu khoa học quốc tế ngành hóa học dành cho các bạn yêu hóa học tham khảo đề tài:
Application of FTA technology for sampling, recovery and molecular characterization of viral pathogens and virus-derived transgenes from plant tissues
Glofish is the first
approved to be
human in the USA
The insertion of
constructs of GFP
into the fish
genomes to give
colors.The idea for recombinant DNA was first proposed by Peter
Lobban, a graduate student of Prof. Dale Kaiser in the
Biochemistry Department at Stanford University Medical School.
The first publications describing the successful production and
intracellular replication of recombinant DNA appeared in 1972
Strong increase in the production of genetically modified organisms (GMOs) observed
over the years has led to a consolidation of transgenic seed industries worldwide. The dichotomy
between the evaluated risk and the perceived risk of transgenic use has defined their
level of acceptability among different global societies. GMOs have been widely applied to
agricultural commodities, among them the Roundup Ready™ (RR™) soybean line GTS 40-3-2
has become the most prevalent transgenic crop in the world.
Tuyển tập các báo cáo nghiên cứu về hóa học được đăng trên tạp chí sinh học đề tài : Application of FTA technology for sampling, recovery and molecular characterization of viral pathogens and virus-derived transgenes from plant tissues
Modern biotechnology is often associated with the use of genetically altered microorganisms such as E. coli or yeast for the production of substances like synthetic insulin or antibiotics. It can also refer to transgenic animals or transgenic plants, such as Bt corn. Genetically altered mammalian cells, such as Chinese Hamster Ovary cells (CHO), are also used to manufacture certain pharmaceuticals. Another promising new biotechnology application is the development of plant-made pharmaceuticals.
In plants, regulation of transgene expression is typically accomplished
through the use of inducible promoter systems. The ecdysone receptor
(EcR) gene switch is one of the best inducible systems available to regulate
transgene expression in plants.