Báo cáo khoa học: "Vegetative propagation of oak (Quercus robur and Q petraea) by cutting and tissue culture" pot

... vegetative propagation of Q robur and Q petraea by cuttings and by tis- sue culture are presented and discussed. MATERIALS AND METHODS Propagation by cuttings Leafy softwood cuttings ... formation in oak seedlings. Tree Physiol 6, 87-93 Review article Vegetative propagation of oak (Quercus robur and Q petraea) by cutting and...

Ngày tải lên: 08/08/2014, 19:21

... was shown by 1D and 2D NMR analysis, MS, and chemical methods that the O-PS of the LPS produced by F. columnare ATCC 43622 is a linear unbranched polymer of trisaccharide units composed of D-GlcNAcA, ... Kersters, K. & Vandamme, P. (1996) Cutting a Gordian knot: emended classification and description of the genus Flavobacterium,emen- ded description of the Flavobacter...

Ngày tải lên: 17/03/2014, 10:20

... (1975b) On the size and microstruc- ture of pollen grains of Quercus robur and Quercus petraea. Bot Not 128, 256-264 Rushton BS (1978) Quercus robur L and Quer- cus petraea ... Q robur and Q pe- traea are clearly separated with a few morphologically intermediate individuals (3.5%). Q petraea is more variable than Q robur. Q pubesce...

Ngày tải lên: 08/08/2014, 19:21

... intensity of the reactions of 0 and 10 lm NADPH revealed that the efficiency of PMCA was increased by  2.59-fold in the presence of NADPH. To evaluate whether the effect of NADPH on PrP Sc propagation ... a PK-resistant isoform in the presence of NADPH. Aliquots of ScBH of SHa-263K were serially diluted into solutions of rSHaPrP or rHu- PrP, with final ScBH dilutions o...

Ngày tải lên: 07/03/2014, 03:20

... the two native British oak species, Quercus robur L and Quercus petraea (Matt) Liebl. Ph D Thesis, University of York Rushton BS (1978) Quercus robur L and Quer- cus petraea (Matt) ... proportion of hybrid forms. RESULTS Of the investigated stands, 49% belonged to Q robur and 40% to Q petraea or con- sisted mainly of these species;...

Ngày tải lên: 08/08/2014, 19:21

... is very nearly equal to the com- bined land areas of Germany, Denmark, Belgium and the Netherlands. It is about 10 times the area of all oak forest and woodlots in France ... redun- dancy of 19 projects on the genetic im- provement of Q rubra (of which only 5.4 million seedlings were planted in 1990). This is a consequence of our...

Ngày tải lên: 08/08/2014, 19:21

... time, 85% of the eastern upland oak forest con- tained oak. These forests were mostly sec- ond-growth stands of sprout origin. Despite the high percentage of oak in these stands, ... in oaks by recur- rent shoot dieback. The accumulation of oak reproduction under a parent stand is one of the most important aspects of the regeneration...

Ngày tải lên: 08/08/2014, 23:22

... the pK a of the his- tidine residue in the active site of RNases and conse- quently in determining the activity profile of this enzyme as a function of pH [26,27]. Another unique feature of the ... remarkable that the exquisite specificity of the ribotoxins HtA and a-sarcin can be achieved by two quite different sets of active site residues. Experimental procedures Protein i...

Ngày tải lên: 18/02/2014, 08:20

... Biochem. 270) Ó FEBS 2003 Gene transcription of fgl2 in endothelial cells is controlled by Ets-1 and Oct-1 and requires the presence of both Sp1 and Sp3 Mingfeng Liu 1 , Julian L. Leibowitz 2 , ... Canada; 2 Department of Pathology and Laboratory Medicine, Texas A & M University System College of Medicine, USA; 3 Renal Division and Department of Medicine, St. Michael...

Ngày tải lên: 20/02/2014, 11:20

... staining of total cellular and chromatin-bound PCNA T24 were grown and incubated on coverslips. Two sets of hypoxic cells and of cells reoxygenated for 10 min and 30 min were prepared. One set of cells ... analyses of growing daughter strands A fast increase of the DNA synthesis rate either reflects release of replicon initiations or stimulation of elongation, or both....

Ngày tải lên: 21/02/2014, 00:20