drought stress tolerance in rice

Ngày tải lên: 30/03/2014, 10:20

Ngày tải lên: 06/08/2014, 18:21

... Furthermore, minimal binding domain of BRI1 was determined using binding assays and recombinant BRI1 fragments (Kinoshita et al. 2005). In other plant species, it was also shown that mutations in BRI1 ... et al. 2002) were determined as positive regulators in ABA signaling. Gene encoding ABA-induced protein kinase 1 (PKABA1), which is a serine– threonine type protein kinase, was isolated from ... receiver domain and a long C-terminal part containing a single-repeat MYB-type DNA- binding domain (Sakai et al. 1998) called a GARP domain (Riechmann et al. 2000) and the proline- and glutamine-rich...

Ngày tải lên: 14/02/2014, 12:20

... gene families in rice. In this study, whole genome microarray analysis of auxin-responsive genes in rice was performed, with the aim of gaining some insight into the mechanism of auxin action. A ... carried out in other plants. The recent advances in genomics provide opportunities to investigate these pathways in crop plants. To gain insights into the molecular mech- anism of auxin action in rice, ... ABA signaling pathways [55]. To address whether auxin-responsive genes are also involved in stress responses in rice, their expression Transcript profiling of auxin-responsive genes M. Jain and J....

Ngày tải lên: 07/03/2014, 01:20

... enzymes in growing rice seedlings. Plant Sci 161:1135–1144 Sharma P, Dubey RS (2005) Drought induced oxidative stress and enhances the activities of antioxidant enzymes in growing rice seedlings. ... tetrameric iron porphyrins and play a role in stress tolerance against oxidative stress. Catalases are produced in peroxisomes and glyoxysomes. Catalases are involved in elim- inating hydrogen peroxide ... (2007) Exogenous proline and glycinebetaine increase NaCl-induced ascorbate- glutathione cycle enzyme activities, and proline improves salt tolerance more than glycinebetaine in tobacco Bright...

Ngày tải lên: 14/03/2014, 10:20

Ngày tải lên: 11/09/2013, 11:44

Ngày tải lên: 13/02/2014, 12:20

... fitness, a training program must include a history of sufficient loading and remodeling within bone if stress injuries and fractures are to be prevented during periods of intense training. Proper ... of increase in the intensity, frequency, or volume of impact of loading activities in basic training is a risk factor for stress fractures. In addition, increased stride length and variations in ... load-bearing conditioning hikes; and • modification of the scheduling of different physical training events to maximize training benefit and minimize the risks of overtraining and overuse injuries. Through...

Ngày tải lên: 14/02/2014, 04:20

... and in ux systems are very impor- tant for cellular ion relationships in natural conditions. Increasing in ux, decreasing efflux or both can maxi- mize K + uptake to maintain K + homeostasis in ... Histochem- ical staining indicated that AtHELPS is mainly expressed in the young seedlings and vascular tissues of leaves and roots. Using both helps mutants and overexpression lines, we observed that, in the ... K + was examined by continuous flux recording (5–10 min). Each point indi- cates mean ± standard error (when larger than the symbol) for the same time interval (15 data points per minute averaged)...

Ngày tải lên: 14/02/2014, 18:20

... OsHsfC1a and OsHsfC1b in yeast cells. These differential patterns pertaining to binding with HSEs and protein–protein interactions may have a bearing on the cellular functioning of OsHsfs under ... heat stress, whereas HsfA5 forms hetero-oligomers with HsfA4, thereby interfering in the HsfA4 DNA binding capacity and thus acting as a selective repressor [24]. In addition to Hsf–Hsf inter- actions, ... is expressed under complex stress combinations involving high and low temperatures coupled with oxidative stress in rice seedlings (D. Mittal and A. Grover, unpublished data). In this study, we have...

Ngày tải lên: 05/03/2014, 23:20

... fusions in these strains was analysed by b-galactosidase activity determinations at hourly intervals during growth in Luria–Bertani broth. Inter- estingly, the htrB–lacZ transcription in the 168 ... are involved in the correct folding of proteins and ⁄ or the removal of incompletely synthes- ized, damaged or malfolded proteins in the different compartments of the cell [1–4]. By studying ... htrB–lacZ expression were determined by analysing b-galactosidase activity (indicated in nmolÆ min )1 ÆA À1 600 ) in cells grown in Luria–Bertani medium (B and C) or in MXR medium (E and F). Sam- ples...

Ngày tải lên: 07/03/2014, 12:20

... examined in principle, but without going too deeoly into the code. 3.1 Sentence Processing Firstly, the user types in a sentence in normal English text, with word boundaries ind/cated in ... that an increase in intensity with no corresponding pitch increase was never- theless heard as a pitch raise. Interestingly enough, a drop in intensity was not heard as a drop in pitch, merely ... point in the sentence where intonation is perceived to rise or fall serves as an important indicator of stress. 1.2 Intensity The subjective impression often gained from a stressed word in...

Ngày tải lên: 09/03/2014, 01:20

... of vitamin E and γ-oryzanol components. While the level of vitamin E in rice germ was 5 times greater than in rice bran, the level of γ-oryzanol in rice germ was 5 times lower than in rice bran. ... 193-211. milling process. According to the information of Riceland Foods, Inc., rice germ is about 20% of full-fat raw rice bran, which suggest that the sample FFRB contains about 10% broken rice germ. Preparation ... concentration in RG. Rice bran (FFRB) used in this study was different from commercial rice bran that has been widely used in rice bran studies. In the present study, intact germ was sorted out from rice...

Ngày tải lên: 15/03/2014, 15:33

... because Cd in wheat grain is higher in bran and lower in albumen so that Cd Ž in flour after milling is much lower e.g. approx. .Ž 40% than that in the whole grain Zhang et al., . 1997 . The inter-area ... value for Pb was 2᎐3ngrg in rice and flour. Calculation for daily Cd intake via rice, taking advantage of the present findings on Cd contents in rice and wheat together with administrative area-specific ... contents in rice available in various parts of the world were previously reviewed, and it was summarized that Cd contents in rice avail- able in Japan is substantially higher than the levels in rice...

Ngày tải lên: 15/03/2014, 23:22

... showing that Yap1 binding activity may be affected. It was shown that the accessibility of Yap1 to the GSH1 promoter could be repressed by Cbf1, a DNA-binding protein that binds to elements in ... carriers are involved in oxidative stress during heat stress in Saccharomyces cerevisiae. Mol Cel Biol 21, 8483–8489. 17 Guo J & Lemire BD (2003) The ubiquinone-binding site of the Saccharomyces ... protein possesses chap- erone activity under stressful conditions provides a very tempting explanation for the distinctive role of cTPxI in protecting cells with mitochondrial dysfunc- tion against...

Ngày tải lên: 16/03/2014, 14:20

Ngày tải lên: 17/03/2014, 16:20

... maintained at 17 °C. The toxin had no strong effect on hsp70 expres- sion in cells at 17 °C (Fig. 4A). In controls, a-tubulin expression was determined using the L. baicalensis probe LUBAITUB in ... expres- sion of this heat shock protein in primmorphs at 4 °C. Interestingly, expression of a-tubulin in primmorphs is low during incubation at 4 °C, and is upregulated in the presence of OA or at higher ... perception in plants: effects of cold protein phosphorylation in cell-free extracts. FEBS Lett 410, 206–209. 23 Parsell DA & Lindquist S (1994) Heat shock proteins and stress tolerance. In The...

Ngày tải lên: 23/03/2014, 10:20

... proteins detected by Western blotting are shown in (A) and (B). Silver stainingisshownin(C)and(D)inblue superimposed with the spots of oxidized pro- teins shown in red. Protein labels: 1, a-tubulin; 2, ... (1999) Photodynamic crosslinking of proteins. Kinetics of the FMN- and rose bengal-sensitized photooxidation and intermolecular crosslinking of model tyrosine-containing N-(2-hydroxypropyl) methacrylamide ... silver-stained protein map, we infer that a-tubulin and b-tubulin are targets of PDT-induced protein oxidation. H 2 O 2 treatment resulted in labeling of endoplasmic reticulum proteins. Under...

Ngày tải lên: 23/03/2014, 15:21

Ngày tải lên: 28/04/2014, 13:32