Báo cáo khoa học: "Nutrient concentrations in Pinus radiata D Don needles in the Basque Country (Spain): preliminary classification of parameters and sites" pptx

... surprisinglylow.NoteNutrient concentrations in Pinus radiata D Don needles in the Basque Country (Spain): a preliminary classification of parameters and sitesJM MesanzaH CasadoFJ ... ac-curacy, the results indicate some differenc-es depending on the age of the needles, the time of collection and the sites sam-pled.As can be seen in table I, some of the sites ... deficien-cy in Pinus radiata (D Don) in eastern Austra-lia. Aust For 25, 111-115Hall MJ, Raupach M (1963) Foliage analyses and growth responses in Pinus radiata (D Don) ...

Báo cáo khoa học: 15 N-Labelled proteins by cell-free protein synthesis Strategies for high-throughput NMR studies of proteins and protein–ligand complexes doc

... ‘[15N]-unlabelling’, where the proteinwas produced on a medium containing inexpensive15NH4Cl and the [15N]-labelling of selected residueswas suppressed by the addition of amino acids at nat-ural ... abundance [17]. In the case of cell-freeprotein synthesis, however, the costs of the [15N]-labelled amino acids are hardly limiting, consideringthat adequate protein yields can be obtained ... obtained in this way so longas the corresponding amino acid pairs are unique in the amino acid sequence. The drawback of thisapproach is the signiﬁcantly larger cost of doublylabelled amino...

Báo cáo khoa học: "Factors involved in Pinus radiata D. Don. micrografting" pot

... 10]could be the reason of the location-related scion re-sponse. It was described that the auxin synthesised in the apical bud inhibits the growth of the axillary buds [2], and so the location of the ... 0.05). In Pinus radiata high concentrations of auxins and cytokinins were required for early development of the micrograft in vitro. This differed from Sequoia, in whichexogenous gibberelin and cytokinins ... of the apical dominance in the micrografting response of the b11 scions, the termi-nal bud of basal branches of mature trees (AA) was re-moved in October1998, and the closedb11 needles to the end...

Báo cáo khoa học: "Nutrient cycling in deciduous forest ecosystems of the Sierra de Gata mountains: aboveground litter production and potential nutrient return" pot

... production occurred in autumn(figures 3 and 4), although there weresmall peaks in spring and at the start of summer mainly due to the shedding of flowers, buds and leaves ... occurs in the case of the studied oak stands, since the greatestamount of inflorescences and fruits wasrecorded during the second year (table II)as a result of the accumulation ... in the fruits, and aboveall Fe and Cu in the other plant remains. In all the forests studied, the potential nutrient supply fluc-tuated over the years and depended...

Báo cáo khoa học: "Nutrient cycling in deciduous forest ecosystems of the Sierra de Gata mountains: nutrient supplies to the soil through both litter and throughfall" ppt

... [34]. The final composition of the water flowing from the canopy is determinedby the initial composition of the rainfallwater, the wash-off of dry atmospheric dust, and water ... 16]. The wooded area is mainlyformed of Quercus pyrenaica Wilid. (deciduousoak), Pinus pinaster Ait. (maritime pine) and, at the southern border of the El Rebollar district,Castanea ... Lehnardt F., Precip-itation input of inorganic chemicals in the open field and in forest stands. Results of investigations in the State of Hesse, in: Georgii H.W. (Ed.),...

Báo cáo khoa học: "Nutrient efficiency and resorption in Quercus pyrenaica oak coppices under different rainfall regimes of the Sierra de Gata mountains (central western Spain)" pps

... the definition of GEI. In the oak stands studied, the soil nutrient availabilitygoverns efficiency in the case of P and Ca, but not in the case of N and K. Concerning ... and bark are difficult to deter-mine).2.2.2. Calculation of efficiency indicesTwo efficiency indices, involving different factors,were determined. The first was defined ... of the resorption index (Re)Taking into account the theoretical considerationsexpressed above, and in an attempt to overcome the drawbacks involved in the calculation of...

Tài liệu Báo cáo khoa học: Accessibility changes within diphtheria toxin T domain when in the functional molten globule state, as determined using hydrogen⁄deuterium exchange measurements pdf

... domain); and the B chain corresponding to the translocationdomain (T domain) and the receptor-binding domain. The C and T domains remain covalently linked by adisulﬁde bond. Following binding to its cell-surfacereceptor, ... single polypeptide chain of 58 kDa [1]. During cell intoxication, diphtheria toxinis cleaved by furin into two fragments: the A chaincorresponding to the catalytic domain (C domain); and the ... of the pro-tein in the N state and the evolution of the overallstructure of the protein in the MG state. This degree of resolution is unprecedented for the T domain of the diphtheria toxin....

Tài liệu Báo cáo khoa học: Disulﬁde bridge regulates ligand-binding site selectivity in liver bile acid-binding proteins ppt

... disulﬁde bridge, has beenstudied by different NMR and MS approaches. The role of the disulﬁde bridge in ligand binding and the backbone dynamics of L-BABP has beeninvestigated here by combining ... resonances corresponding to the unbound ligand and to binding sites 1 and 2 are indicated as U, 1, and 2, respectively. The satellite peaks of site 1 and site 2 are also marked. Asterisks indicate exchange ... and negligible for site2, independently of the presence of a disulﬁde bridge(Table 1). The introduction of a disulﬁde bridgeinduced signiﬁcant changes in the GCA exchangeregime for ligand...

Tài liệu Báo cáo khoa học: Mixed lineage leukemia histone methylases play critical roles in estrogen-mediated regulation of HOXC13 docx

... and ERb wasincreased in both ERE1 and ERE2 in the presence of E2. Interestingly, the kinetics of E2-dependent binding of ERa and ERb to both ERE1 and ERE2 are differ-ent. The binding of ERa is ... seen in Fig. 5A, no signiﬁcant binding of actin wasobserved in any of the EREs, irrespective of the absence and presence of E2. Binding of ERa and ERbwas increased in both ERE1 and ERE2 of the HOXC13 ... absence of E2, and this binding wasincreased in the presence of E2 (Fig. 5A,B; compare0 h and 6–8 h time points). These differences in the kinetic proﬁles of binding of ERa and ERb suggestthat they...

Tài liệu Báo cáo khoa học: Bacterial-induced hepoxilin A3 secretion as a pro-inﬂammatory mediator pptx

... during intestinal in ammation may be unique topolarized epithelia and involved in host defense. In the particular case of HXA3, its stimulated production and release from the apical surface of ... pro-duction of 12-HpETE is a side reaction of 15-LOX-1,it represents an intriguing candidate for the involve-ment in HXA3production considering its expression in both intestinal and airway ... made in understanding the complex molecu-lar events that orchestrate the directional movement of neutrophils across the mucosal surface during bacterialinfection of the intestinal tract and...

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