oxidative stress and antioxidative responses to environmental stress

... dysfunctions that can lead to cell death (adopted from Ahmad et al 2008) Oxidative Stress and Antioxidative Responses to Environmental Stress 3.1 Production of ROS Environmental stresses are responsible ... trehalose levels lead to a higher photosynthetic rate and to a decrease in photooxidative damage during stress Trehalose is thought to protect biological molecules from environmental stress (such as ... and tolerance to salt, drought, and the combined effects of these stresses Osmotic stress (particularly mannitol stress) led to a considerable increase of the Pro concentration in the obligatory...

Ngày tải lên: 14/03/2014, 10:20

... attributable to a reduction in stomatal opening The likely sequence of events was thought to be increased salinity, water stress, stomatal closure, decrease in intracellular CO2 , and decrease in photosynthesis ... CO2 influx to match the photon flux We were unable to find such major differences in salt concentration between xylem sap and medium as those reported by Scholander and co-workers (Scholander et ... Ball, M.C., Farquhar, G.D., 1984a Photosynthetic and stomatal responses of two mangrove species, Aegiceras corniculatum and Avicennia marina, to long term salinity and humidity conditions Plant Physiol...

Ngày tải lên: 06/07/2014, 02:20

... Dwt/kg water) and by carbon discrimianalysis (Farquhar and Richards, 1984) was significantly largest in water- nation stressed, fertilised Tennant Creek seed- Both water and nutrient stress caused ... leaves to become more linear (as opposed to lanceolate) in shape Principal component analysis (Cooley and Lohnes, lings (Fig 3) Water stress reduced leaf area most in Katherine seedlings (Fig 4), and ... provenances also differed in stress- induced changes in the partitioning of dry matter into roots, stems and leaves (Fig 5) Stressed Tennant Creek seedlings allocated more dry matter into leaves at the expense...

Ngày tải lên: 09/08/2014, 04:20

... willingness to try genetically modi®ed tomato, although it was clearly of plant origin Responses to LoR chocolate bar and to FlavSavR tomato suggest that the FNS scores may predict responses to unfamiliar ... ®nding that was similar to US and Swedish populations (Frank & Hursti, 1999) Education is likely to enhance the access and exposures to various stimuli, events and issues, and thereby it can perhaps ... and mammi), but it signi®cantly È decreased the willingness to try pineapple, strawberry yogurt, bread cheese, beef tomato, pasha, turkey, snails, falafel balls, and genetically modi®ed tomato...

Ngày tải lên: 03/04/2013, 21:06

... Few, R., and P G Tran 2006 Prevention and cure: health sector responses to flooding Science and Culture Gosh, A., and J Roy 2006 Coping with extreme climatic events: analysis of household and community ... capacity to mobilize and then coordinate resources is often critical to prevention and response actions The capacity to skillfully use those resources to carry out actions transforms potential into ... corresponding to different kinds of resources and actions At the simplest and most conventional level we need to look at actual structural and non-structural responses made in preparing for, and responding...

Ngày tải lên: 22/10/2013, 10:15

... verbal responses to compliments in their contrast in English and Vietnamese, this study aims to describe and analyze different types of compliment responses (CRs, hereafter) in English and Vietnamese ... FEATURES OF CRS IN ENGLISH AND VIETNAMESE CRs will be divided into two categories, Person -to- Person Compliment Responses (PP-CRs, hereafter) and Compliment Responses to a third person (3rd P-CRs, ... well as to make the process of teaching and learning foreign language better 1.2 AIMS AND OBJECTIVES 1.2.1 Aims of the Study With the purpose to make an investigation into syntactic and pragmatic...

Ngày tải lên: 26/11/2013, 13:19

... season and have apparently different responses to IR forcing, and employed an integrative process model to investigate one potential mechanism for altered reproduction in relation to www.newphytologist.org ... of Erythronium grandiflorum varieties grandiflorum and candidum (Liliaceae) American Journal of Botany 75: 1–14 Galen C, Stanton ML 1993 Short-term responses of alpine buttercups to experimental ... individuals of each species and the number of flowers per individual were counted in yr (2001 and 2003 for E grandiflorum and D nuttallianum; 2002 and 2003 for E speciosus and H quinquenervis) The...

Ngày tải lên: 05/03/2014, 17:20

... known to be more tolerant to drought [10, 11, 14], whereas Q robur displays a larger tolerance to water-logging and associated root hypoxia [22, 23, 53, 60] This difference of tolerance to waterlogging ... plants to oxygen deprivation: role of enzyme induction in the improvement of tolerance to anoxia, in: Lernèr H.R., Dekker M (Eds.), Plant response to environmental stresses, from phytohormones to ... and probably local consumption and therefore is not a efficient indicator of species tolerance to hypoxia 4.6 Enhancement of O2 diffusion towards roots in Q robur Q robur formed more lenticels and...

Ngày tải lên: 07/08/2014, 16:20

... carbon isotope discrimination, Funct Ecol (1991) 684−695 [19] Read J., Hill R.S., Photosynthetic responses to light of Australian and Chilean species of Nothofagus and their relevance to the rain ... Photoprotection and other responses of plants to high light stress, Annu Rev Plant Physiol Plant Mol Biol 43 (1992) 599−626 [4] Donoso C., Ecología Forestal: el bosque y su medioambiente Editorial ... response to environmental water availability: a test of adaptive hypotheses, Evolution 50 (1996) 92−102 [6] Escalona J.M., Flexas J Medrano H., Stomatal and non-stomatal limitations of photosynthesis...

Ngày tải lên: 07/08/2014, 16:21

... L decidua and by the dense tree crowns reaching to the ground for P abies and P cembra Sap flux density was measured from 17 June to 13 October 1997 (days 168–286) Sapwood area and total tree ... University and Scientific and Technological Research (MURST) funds ex40% Special thanks go to Fausto Fontanella, Roberto Menardi and Giuseppe Sala of the Centre of Alpine Environment, San Vito di ... and Fennoscandian Mountains, Editions des Conservatoire et Jardin Botaniques Geneve, Geneva, 1995 [14] Hattenschwiler S., Körner Ch., Responses to recent climate warming of Pinus sylvestris and...

Ngày tải lên: 08/08/2014, 14:22

... wetlands must possess the ability to cope or adjust to an anaerobic rhizosphere The observed stratification of oaks in bottomlands, and the apparent association of flood frequency, duration, and ... 400 and -2 -1 800 μmol m s Stomatal conductance and transpiration were measured randomly for species and treatment combinations between 0900 and 1100 hours on each sample day Diurnal stomatal ... decline in net photosynthesis was observed concomitant to reduced stomatal aperture However, nonstomatal limitations to photosynthesis may also be observed after extended periods of Stomatal closure...

Ngày tải lên: 08/08/2014, 18:21

... difference between the W and W- lines increased gradually and reached its maximum in generation 15 A decline in the selected and control lines was observed possibly due to environmental effects ... increased pre-natal loss and decreased fertility On the other hand, selection for small body weight led to a decline in litter size to a decrease in both ovulation rate and pre-natal survival), ... laboratory mouse as a model for animal breeding : a review of selection for increased body weight and litter size 2nd World Congress on Genetics Applied to Livestock Production, Madrid, October...

Ngày tải lên: 09/08/2014, 22:22

... was to compare maximal strength and hypertrophy responses to resistance training programs using constant rest intervals (CI) (2-min) and decreasing rest intervals (DI) (2-min decreasing to 30-sec) ... anatomical match was found Training Program Subjects assigned to both the CI and DI groups performed the same exercises, number of sets and exercises, and repetitions per set during 8-week monitored ... magnitudes for bench press and squat 1-RM (Table 1) and knee extensor and flexor isokinetic peak torque pre- to post-training (Table 2) However, the ES for upper arm and right thigh CSAs presented...

Ngày tải lên: 11/08/2014, 23:21

... disturbed answer to catecholamine response is due to a signaling problem at the receptor or postreceptor levels or due to the tissue’s inability to produce the physiological answer, or both To conclude, ... Heterogeneity and prediction of hemodynamic responses to dobutamine in patients with septic shock Crit Care Med 2006, 34:2392-2398 Landry DW, Oliver JA: The pathogenesis of vasodilatory shock N ... answer, or both To conclude, according to the ubiquitous character of catecholamine sensitivity, we should think in terms of cellular ability to respond to catecholamines in defining the concept...

Ngày tải lên: 13/08/2014, 10:20

... 31 (18 to 60)*§ RBF Control (5 to 9) (4 to 6) (3 to 6) (3 to 6) (ml/kg) AKI (4 to 8) (4 to 8) (5 to 7) (3 to 4)* RVR Control 452 (351 to 587) 539 (312 to 584) 365 (355 to 854) 461 (316 to 706) ... Control (8 to 9) 11 (10 to 13)* 13 (12 to 15)* 13 (12 to 15)* (mmHg) AKI 10 (9 to 13) 13 (12 to 15)* 16 (14 to 18)* 18 (16 to 19)*§ PAOP Control (7 to 10) 11 (8 to 12) 12 (10 to 13) 12 (10 to 17) ... (9 to 12) 12 (11 to 15)* 16 (14 to 17)*§ 16 (16 to 17)* DO2 Control 11 (11 to 12) 11 (9 to 12) 10 (9 to 12) 10 (9 to 12) (ml/min/kg) AKI 11 (9 to 13) 16 (14 to 27)§ 16 (14 to 19)§ 19 (11 to 25)...

Ngày tải lên: 13/08/2014, 11:23

... respond to adefovir and lamivudine They demonstrated the presence of rtM204I and rtA181S mutations in the HBV polymerase and the phenotypical resistance of this strain to both adefovir and lamivudine ... order to detect lamivudine and adefovir resistanceassociated mutations and to determine the HBV genotype of the patient strain, sequence analyses were performed within the viral polymerase and ... type strain Primers and probes for rtM204V/I were described previously and the assay can detect up to 0.1% variants for a total viral load of 105 copies/mL [13] We designed and evaluated a specific...

Ngày tải lên: 13/08/2014, 13:20

... subsidies to companies that agreed to retain workers, leading to less unemployment; Turkey witnessed a shift in employment from industry to agriculture and services, most likely into the informal sector ... according to household characteristics, such as employment sector, gender, location, mortgage type, and so on demand for household enterprise products; and shifts from formal to informal sector employment ... households and families in Eastern Europe and Central Asia The multiple monitoring tools employed in this study range from qualitative studies to the fielding of Crisis Response Surveys, and from...

Ngày tải lên: 03/11/2014, 19:27

... CHE‐sensitised mice, to analyse the role of different cell types, cytokine factors and mediators of cytotoxicity on the host’s responses to BCG, and their subsequent impact on BCG survival 2) To investigate ... 3.3: Role of FasL, perforin, IFN‐ and IL‐10 in CHE‐mediated cytotoxicity 54 Fig 3.4: Cytotoxicity is specific to CHE and not non‐specific .55 Fig 3.5 Cells expressing perforin or IFN‐ in infected mouse lungs 57 Fig 3.6: Cytokine production and BCG counts after BCG infection in vivo ... 49 3.3.1 Cell subsets involved in cytotoxicity .49 3.3.2 Mediators of cytotoxicity .53 3.3.3 Specificity of cytotoxic responses 53 3.3.4 Effect of Env sensitisation on live BCG infection...

Ngày tải lên: 10/09/2015, 15:51

... promoter regions of many proinflammatory cytokines and immunoregulatory mediators important in the induction of acute inflammatory responses and associated with chronic and degenerative diseases Therefore, ... ability to modulate lifespan in response to ecological conditions could have allowed these enzymes to be conserved as species evolved, and to take on new roles in response to new stresses and demands ... agent exhibiting anti-inflammatory, cell growthmodulatory and anti-carcinogenic effects RSV was found to prevent lipids from peroxidative degradation [145-147] and to stop the uptake of oxy-LDL in...

Ngày tải lên: 12/09/2015, 08:20

... upregulated by oxidative stress and phytohormones To study the effect of oxidative stress and signaling molecules on the expression of GhMPK2, total RNA was extracted from 7-day-old cotton seedlings ... transgenic plants to oxidative stress To observe the growth performance of tobacco plants under oxidative stress conditions, the wild-type and transgenic seeds were surface-sterilized and germinated ... scavenger, increased tolerance against abiotic stress in transgenic tobacco and yeast J Exp Bot 60, 339–349 17 Mittler R (2002) Oxidative stress, antioxidants and stress tolerance Trends Plant...

Ngày tải lên: 14/03/2014, 23:20