Báo cáo khoa học: "Belowground biomass seasonal variation in two Neotropical savannahs (Brazilian Cerrados) with different fire histories" pot

... online: www.edpsciences.org Belowground biomass in savannahs 721 Original article Belowground biomass seasonal variation in two Neotropical savannahs (Brazilian Cerrados) with different fire histories Welington Braz Carvalho ... quanti- fied in Brazilian ecosystems [2, 6, 25]. The objective of this studywastoanalyse the seasonal changes in belowground bi...

Ngày tải lên: 08/08/2014, 14:21

... % de la biomasse totale du peuplement. La souche et les grosses racines repré- sentent 89 % de cette biomasse.Un simple modèle linéaire relie la biomasse aérienne et labiomasse souterraine pour ... in fine roots, Ecology 81 (2000) 275–280. [11] Grier C.C., Cole D.W., Dyrness C.T., Frederiksen R.I., Nutrient cycling in 37 and 450-year-old Douglas-fir ecosystems, in: Integrated research i...

Ngày tải lên: 08/08/2014, 14:21

... diurnal and seasonal variation in stem radius in large oaks in the floodplain forest growing in the plateau of the Dyje river in southern Moravia. In this site, different ... (i.e. shrinking and swelling). Different types of diurnal dynamics of stem radius occurred including growth with and without shrinkage, growth at night and shr...

Ngày tải lên: 08/08/2014, 14:21

... 0.85. As in our study, Bosc [5] found that in maritime pine (Pinus pinaster Ait.), maintenance respiration increases strongly with [N]. For beech, maintenance respiration in - creased according to ... During the non-growing season, the trend of increase in respiration rates with increasing height or decreasing diameter remained, but the respiration rate at breast height, specifica...

Ngày tải lên: 08/08/2014, 14:20

... (G t in figure 2) over the entire season were examined for agreement with sev- eral simple models. We hypothesized that stand conductance should increase with increasing PPFD ... simple model combining PPFD and D effects over the entire range of observations, cf. Lu et al. [41], resulted in an increasing stimulation of conductance with increasi...

Ngày tải lên: 09/08/2014, 04:20

... from both brain and intestine in L. maderae [14,15]. The finding that N-terminally extended TKRPs are predominantly expressed only in the gut and not in the brain are in line with findings of enrichment ... tachykinins, the hemokinins, were identified on a third precursor encoding gene, preprotachykinin C, expressed in hematopoietic cells of mouse, rat and humans [6,7]. In inverteb...

Ngày tải lên: 20/02/2014, 01:20

... transfected individually or in combination into ldlD cells and immunoprecipitation was carried out with myc antibody using detergent-soluble cell lysates containing the amount of protein indicated. ... proteins was not cell-type-specific. Aggresomes are structures formed in the presence of misfolded proteins and con- tain components of the protein degradation and refold- ing machinery, i...

Ngày tải lên: 07/03/2014, 00:20

... in Fig. 3. The protein crystallised in space group P2 1 2 1 2 1 with two monomers in the asymmetric unit, related by a twofold axis of noncrystallographic symmetry running through the dimer interface. ... assessed with procheck [51]. Helix geometry and packing angles were calculated with promotif [52], and the CCP4 utility lsqman [53]. Main chain and side contacts were determine...

Ngày tải lên: 07/03/2014, 16:20

... mine the identity and location of the nucleotide insertion. Four mutants obtained contained in- frame insertions resulting in the insertion of five amino acids into the Cdc37 protein. Stop ... middle and all of the C-terminal domains, including the postulated Hsp90-binding and dimerization regions [16]. Mutants with truncations extending into the N-terminal domain, Cdc37(1–155), Cdc37(1–1...

Ngày tải lên: 16/03/2014, 22:20

... 703 corpus instances for the two frames shown in Figure 1, making up a total of 4,653 an- notation instances. For the frame REQUEST, we obtained 421 instances with 8-fold and 114 with 7-fold ... Frame annotation proceeds one frame-evoking lemma at a time, using subcor- pora containing all instances of the lemma with some surrounding context. Since most FEEs are polysemous, there wil...

Ngày tải lên: 17/03/2014, 06:20