Salinity stress negatively impacts agricultural yield throughout the world affecting production whether it is for subsistence or
economic gain. The plant response to salinity consists of numerous processes that must function in coordination to alleviate both cellular
hyperosmolarity and ion disequilibrium. In addition, crop plants must be capable of satisfactory biomass production in a saline
environment (yield stability).
Physiological and biochemical responses induced by salt stress were studied in laboratory-grown young plants of the mangrove, Bruguiera gymnorrhiza. The growth rates and leaf areas were highest in the culture with 125 mM NaCl. Transpiration rates showed a diel periodicity when the plants were placed in water, but the oscillatory cycles disappeared for plants placed in higher
The impact of salinity on three arboreal mangrove plants, Sonneratia apetala (Sa), S. caseolaris (Sc) and Rhizophora stylosa (Rs), was studied. The three mangrove species were treated with different salinity levels over a three-month period. The response and adaptation of these three mangrove species to salinity were shown to be different. Net photosynthesis rate, stomata conductance and transpiration rate of leaves decreased and soluble sugar content in leaves increased, with salt concentration in all three mangrove species.
Mechanisms of salt tolerance in halophytes: can crop plants resistance to salinity be improved? High concentrations of sodium are toxic to most plant species, making soil salinity a major abiotic stress in plant productivity world wide. Many crop species, which countless people rely for survival, are negatively affected.
Tuyển tập báo cáo các nghiên cứu khoa học quốc tế ngành y học dành cho các bạn tham khảo đề tài: Impact of AtNHX1, a vacuolar Na+/H+ antiporter, upon gene expression during short- and long-term salt stress in Arabidopsis thaliana
Tuyển tập báo cáo các nghiên cứu khoa học quốc tế ngành y học dành cho các bạn tham khảo đề tài: Transcriptomic identification of candidate genes involved in sunflower responses to chilling and salt stresses based on cDNA microarray analysis
Tuyển tập các báo cáo nghiên cứu về sinh học được đăng trên tạp chí lâm nghiệp đề tài: Influence of exogenous L-proline on embryogenic cultures of larch (Larix leptoeuropaea Dengler), sitka spruce (Picea sitchensis (Bong.) Carr.) and oak (Quercus robur L.) subjected to cold and salt stress...
Tuyển tập báo cáo các nghiên cứu khoa học quốc tế ngành y học dành cho các bạn tham khảo đề tài: The Arabidopsis translocator protein (AtTSPO) is regulated at multiple levels in response to salt stress and perturbations in tetrapyrrole metabolism
Tuyển tập báo cáo các nghiên cứu khoa học quốc tế ngành y học dành cho các bạn tham khảo đề tài: Transcriptional profiling of Medicago truncatula under salt stress identified a novel CBF transcription factor MtCBF4 that plays an important role in abiotic stress responses
Abiotic stresses are serious threats to agriculture and the environment which have been exa‐
cerbated in the current century by global warming and industrialization. According to FAO
statistics, more than 800 million hectares of land throughout the world are currently salt-af‐
fected, including both saline and sodic soils equating to more than 6% of the world’s total
land area. Continuing salinization of arable land is expected to have overwhelming global
impact, resulting in a 30% loss of agricultural land over the next 25 years and up to 50% loss
Increasing attention has also been given to
dissecting and understanding diversity in relation to genes underlying important agronomic
traits in a number of crops. Molecular phylogenetics and genetic diversity analysis can help
to clarify the taxonomic identity and evolutionary relationships of the wild relatives of crop
species. These methods can also help prevent misidentification and carefully plan effective
germplasm management strategies.
The three mangrove species were treated with different salinity levels over a three-month period. The response and adaptation of these three mangrove species to salinity were shown to be different. Net photosynthesis rate, stomata conductance and transpiration rate of leaves decreased and soluble sugar content in leaves increased, with salt concentration in all three mangrove species. The malondial dehyde (MDA) content in stems and leaves of Sa and Sc
There are several differences between bamboo and wood. In bamboo, there are
no rays or knots, which give bamboo a far more evenly distributed stresses throughout its
length. Bamboo is a hollow tube, sometimes with thin walls, and consequently it is more
difficult to join bamboo than pieces of wood. Bamboo does not contain the same
chemical extractives as wood, and can therefore be glued very well [Jassen 1995].
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.
Permanganate may be applied to sites as either potassium permanganate
(KMnO4) or sodium permanganate (NaMnO4). Where cost dominates over
engineering factors at a site, potassium permanganate is the preferred chemical
form because it is more widely available, less costly, and is available in solid form,
which facilitates transport and handling. Where other factors are more important,
the liquid form of sodium permangante is preferable.
Photosynthesis of micro algae is often inhibited by salt stress (Kirst, 1990). Such an
inhibition may be explained by a decrease in PSII activity. Indeed, in the green microalgae,
salt stress inhibits PSII activity in Dunaliella tertiolecta and Chlamydomonas reinhardtii that is
associated with a state-2 transition (Gilmour et al., 1985, Endo et al., 1995).
In the cyanobacteria, it has been suggested that the decreased PSII activity in salt-stressed
cells is associated with the state-2 transition (Schubert et al., 1993; Schubert and Hagemann,
It usually looks at cash flow during the hold period of the investment plus the cash flow resulting
from the ultimate disposition of the investment property.
In these respects it is different from and more sophisticated than Tool Kit #2 Direct
Capitalization, which usually limits its focus to annual net incomes without taking into account
cash flow, appreciation in value, paying down of mortgages, or ultimate cash flow on
Phototrophy is the process by which organisms trap photons and store energy as chemical
energy in the form of adenosine triphosphate (ATP). ATP transports chemical energy within
cells for metabolism. There are three major types of phototrophy: Oxygenic and Anoxygenic
photosynthesis, and Rhodopsin-based phototrophy. Photosynthesis is a chemical process
that converts carbon dioxide into different organic compounds using solar energy. Oxygenic
and anoxygenic photosynthesis undergo different reactions in the presence and absence of
light (called light and dark reactions, respectively).