Công nghệ chuyển gen: là đưa một đoạn DNA ngoại lai vào gen của cơ thể đa bào, sau đó DNA ngoại lai này sẽ có mặt ở hầu hết các tế bào và được truyền lại cho thế hệ sau. Gen chuyển:(transgene) là gen ngoại lai được chuyển từ một cơ thể sang một cơ thể mới bằng kỹ thuật di truyền. GMP (genetically modified plant): thực vật biến đổi gen
The wide geographical distribution of the rice
plant ( Oryza sativa L.) and its long history of
cultivation in Asian countries have led to the development
of a great diversity of varietal types.
Similarly, workers in various rice-growing countries
use different terms to designate identical
morphological and physiological characters, agronomic
traits, gene symbols, and cultural practices.
Whereas varietal diversity in germ plasm is desired
in rice breeding, variations in nomenclature hinder
scientific communication among the workers.
Clear and concise, this easy-to-use text offers an introductory course on the language of gene cloning, covering microbial, plant, and animal systems. The essential concepts in biology relevant to the understanding of gene cloning are presented in a well-organized and accessible manner. This updated version of the first edition is an invaluable book for nonscientists as well as scientists with little background knowledge in gene cloning, providing a wealth of information for anyone wishing to gain proficiency in reading and speaking the language of gene cloning....
The genomics revolution of the past decade has greatly enhanced our understanding of
the genetic composition of living organisms including many plant species of economic
importance. Complete genomic sequences of Arabidopsis and several major crops, together
with high-throughput technologies for analyses of transcripts, proteins and mutants, provide
the basis for understanding the relationship between genes, proteins and phenotypes.
Property, plant and equipment is carried at cost less accumulated depreciation. Assets
manufactured by the Company include direct manufacturing costs, production overheads
and interest charges incurred during the construction period. Government grants are
deducted from the cost of the related asset. Depreciation is calculated using the
straight-line method over the expected economic life of the asset. Depreciation of special
tooling costs is based on the expected future economic benefit of these tools.
This book is about the conservation of genetic diversity of wild plants in situ in
their natural surroundings, primarily in existing protected areas but also outside
conventional protected areas. A lot of effort has been dedicated to conserving plant
biodiversity, but most of this has focused on rare plant communities or individual
species threatened with extinction.
PLANT BIOLOGISTS MAY BE FORGIVEN for taking abiding satisfaction in the fact that Mendel’s classic studies on the role of heritable factors in development were carried out on a flowering plant: the garden pea. The heritable factors that Mendel discovered, which control such characters as flower color, flower position, pod shape, stem length, seed color, and seed shape, came to be called genes. Genes are the DNA sequences that encode the RNA molecules directly involved in making the enzymes and structural proteins of the cell.
Despite a variety of processes and the availability of raw-material sources, the
widespread utilisation of annual plants in pulping has not been technically or
economically feasible in Western countries due to the lack of a simple and
environmentally efficient pulping method and the problems associated with raw
material storage and logistics.
An ideal non-wood pulping process is simple and environmentally efficient
and can be applied on a small scale.
Non coding endogenous RNAs were first discovered in the last decade of the previous
century. These new discoveries changed our views of the transcriptome landscape of
plant genomes and paradigms of the regulation of gene expression. With the beginning
of this century, we have witnessed an explosion of studies on small regulatory
RNAs that has yielded a basic understanding of the many types of small RNAs in
diverse eukaryotic species and how they are functioning as RNA–protein complexes
along the RNA silencing pathways.
Although the main consideration of policy must be the reduction in pollution at
source, there has been an increasing recognition that the biosphere is an important
sink for many pollutants, with plant canopies being considered more effective than
other land uses. Thus, the biosphere provides benefits additional to those associated
directly with their aesthetic and wildlife characteristics. Plants facilitate the uptake,
transport and assimilation or decomposition of many gaseous and particulate
MicroRNAs (miRNAs) have been proven to play important roles at the
post-transcriptional level in animals and plants. To investigate clustering
patterns and specific sequence characteristics in the flanking regions of
plant miRNA genes, we performed genome-wide analyses ofArabidopsis
thaliana, Populus trichocarpa, Oryza sativaand Sorghum bicolor.
DNA methylation affects important developmental processes in both plants
and animals. The process of methylation of cytosines at C-5 is catalysed by
DNA methyltransferases (MTases), which are highly conserved, both struc-turally and functionally, in eukaryotes. In this study, we identified and
characterized cytosine DNA MTase genes that are activated with the onset
of reproductive development in rice.
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.
Coffee plant is one of the most important industrial crops, and the two popular cultivars, Coffea arabica and Coffea canephora, contribute to the production of almost all coffee beans around the world. Traditional breeding could be used to develop new coffee cultivars with a higher productivity under these harsh conditions, and a biotechnological approach can also be used to improve coffee plants in a relatively short period of time.
In smaller regions such as the Carpathian Basin (located in Eastern/Central Europe), 50 km
horizontal resolution may still not be appropriate to describe the meso-scale processes (e.g.,
cloud formation and convective precipitation). For this purpose on a national level several
RCMs have been adapted with finer resolution (25 and 10 km). Here, results from two of the
adapted RCMs for Hungary are analyzed, namely, models PRECIS and RegCM.
In this paper, first, data and models from PRUDENCE, PRECIS and RegCM are presented.
Does this mean that differences in genetic diversity levels will have predictable
ecological consequences? The answer is no, because only one portion of genetic diversity is
connected to ecological factors, i.e. adaptation. Ecological adaptation is a significant factor
for example, in range expansion of plant species. Plants with different genotypes conferring
the highest levels of fitness are expected to survive and reproduce better, shifting the gene
pool over time towards higher frequencies of the alleles making up the more successful
genotypes (Ward et al., 2008).
The promoter or sponsor must be involved in all of the planning phases to ensure a
successful event. Often, the promoter is interested in monetary gain more than he or she is
interested in public safety. If this appears to be his or her primary goal, local agency
participation is essential. You may encourage the promoter to cooperate by linking
attendance at planning meetings with the permit process and issuance. For example, the
permit to host the event may require the promoter’s presence at the initial planning
meeting. Teamwork promotes successful events.
Chlorophyll fluorescence represents an intrinsic signal emitted by plants
that can be employed to monitor their physiological state including changes of the
photosynthetic apparatus, developmental processes of leaves, state of health, stress events,
stress tolerance, and also to detect diseases or nutrient deficiency of plants. In particular, the
application of laser induced chlorophyll fluorescence spectroscopy has drawn much attention
recently owing to the non-invasive and nondestructive nature of the technique (Svanberg,
1995; Lang & Lichtenthaler, 1991; Chappelle et al., 1984)....
Plant tissue culture
Most methods of plant transformation applied to GM crops require that a whole plant is regenerated from isolated plant cells or tissue which have been genetically transformed. This regeneration is conducted in vitro so that the environment and growth medium can be manipulated to ensure a high frequency of regeneration. In addition to a high frequency of regeneration, the regenerable cells must be accessible to gene transfer by whatever technique is chosen (gene transfer methods are described in Chapter 3).
Events are continuously generated and consumed by clients within the system. Clients have
intermittent connection semantics. Clients can be present in the system for a certain duration
and be disconnected later on. Clients reconnect at a later time and receive events, which they
were supposed to receive in their past incarnations as well as events that they are supposed
to receive during their present incarnation. Clients issue/create events while in disconnected
mode, these events would be held in a local queue to be released to the system during a