Báo cáo khoa học: " Presence of necrotic strains of Potato virus Y in Mexican potatoes" docx

... jpms@ira.cinvestav.mx* Corresponding author AbstractAs part of a routine screening for the possible presence of the necrotic strains of potato virus Y affecting potatoes in Mexico, five PVY isolates were submitted ... geographicdistribution of serotypes of Potato Virus Y. Plant Dis 1997,81:481-484.3. Chrzanowska M: New isolates of the necrotic strain of potato virus Y (PVYN) found recently in Poland. Potato Res 1991,34:179-182.4. ... Ronhanyi J, Forster H: Studies on the etiol-ogy of tuber necrotic ringspot diseases in potato. Potato Res1984, 27:339-352.5. McDonald JG, Kristjansson GT: Properties of strains of potato virus YN...

Báo cáo khoa học: " Presence of necrotic strains of Potato virus Y in Mexican potatoes" ppt

... Frías-Treviño G, Aviña-Padilla K, Silva-Rosales L, Martínez-Soria JP: Presence of necrotic strains of Potato virus Y in Mexican potatoes. Virology Journal 2009, 6:48. ... Central yours — you keep the copyrightSubmit your manuscript here:http://www.biomedcentral.com/info/publishing_adv.aspBioMedcentralVirology Journal 2009, 6:80 http://www.virologyj.com/content/6/1/80Page ... Central and every scientist can read your work free of charge"BioMed Central will be the most significant development for disseminating the results of biomedical research in our lifetime."Sir...

Báo cáo y học: "Presence of necrotic strains of Potato virus Y in Mexican potatoes" pot

Báo cáo khoa học: Rhodanese–thioredoxin system and allyl sulfur compounds Implications in apoptosis induction docx

... the ability of the rhoda-nese–Trx system to detoxify by oxygen radicals in vivo.Interestingly, the blockage in the G2⁄ M phase of thecell cycle was linked to an early increase of ROS ﬂux.Cells ... compounds in thecell, inducing the onset of degenerative states andapoptosis. The in vitro study of their interaction withenzymes probably involved in the metabolism of sulfurmay explain their in ... respectively (Fig. 1A). The growth-inhibitory effects of 2-PTS were determined by using theTrypan Blue dye-exclusion assay. Flow cytometric anal-ysis of HuT 78 cells after 24 and 48 h of treatment...

Báo cáo khoa học: GlnK effects complex formation between NifA and NifL in Klebsiella pneumoniae docx

... tetracycline-resistance cassette into theHindIII site. pRS239 was obtained by inserting the tetra-cycline-resistance cassette into the HindIII site of pRS155,encoding glnK under the control of ... limitationfrom the beginning (Fig. 4A; r) the resulting nif induction in the absence of additional GlnK synthesis was signiﬁcantlydecreased in cultures initially containing small amounts of ammonium (Fig. ... dissociation by GlnK; consequently,most of NifL stays i n t he cytoplasm as recently demonstra-ted [17] and inhibits NifA activity by forming inhibitorycomplexes (Fig. 6B). When a shift to oxygen occurs...

Báo cáo khoa học: "The Treegram Index An Efficient Technique for Retrieval in Linguistic Treebanks" docx

... contained in the query q. VENONA addresses these problems by the following approach: Problem A: Processing of a single tree- gram: (1) Node labels hash to an integer of a few bytes: We ... following interesting problems: (A) A single treegram may be very com- plex because of its unlimited degree and label strings; this leads to costly look-up operations. (B) There are many ... d-ary tree. 2 (3) For describing a single treegram g, VENONA takes each of g's hashed labels and combines it with the position of its corresponding node in a complete d-ary tree; an integer...

Báo cáo khoa học: "TEXT UNDERSTANDING WITH MULTIPLE KNOWLEDGE SOURCES: AN EXPERIMENT IN DISTRIBUTED PARSING" docx

... one of them will possibly recognize its inability to correctly complete the task, it will send back to the CM a message contain- ing an alarm, causing in such a way a change in the priority of ... being available as evidence for or against hypotheses at other levels. In a more dynamic view of interaction, Levy (1981) suggests that the message center could modify the activity of each individual ... into play in the course of comprehension. In the paper the rationale of advocating such an approach and the.advantages in following it are discussed. A proto- type parser based on an original...

Báo cáo khoa học: "Serum Calcium Response Following Oral Zinc Oxide Administrations in Dairy Cows" docx

... regarding zinc dosing and toxicity.ReferencesAllen JG, Masters HG: Prevention of ovine lupinosisby oral administration of zinc sulphate and the ef-fect of such therapy on liver and pancreas zincand ... elevating the level of di-etary calcium to 0,8% of DM. In support of thisKincaid (1979) found, that elevated amounts of dietary calcium had no effect on absorption of zinc in the lactating cow.The ... obtained matching results,and suggested that the feeding of high dietarycalcium (0,8%) to ewes decreased the absorp-tion of dietary Zn.During the years the prophylactic effect of di-etary zinc...

Tài liệu Báo cáo khoa học: Suppressed catalytic efﬁciency of plasmin in the presence of long-chain fatty acids Identiﬁcation of kinetic parameters from continuous enzymatic assay with Monte Carlo simulation ppt

... the catalytic action of plas-min in the presence of stearate. The p-nitroaniline (P) released in the course of hydrolysis of 40 lM Spectrozyme-PL by 20 nM plas-min in the presence of 115 lM ... Amidolytic activity of des-kringle plasmin derivatives in the presence of fatty acids. The activity of 20 nM miniplasmin (A) and micro-plasmin (B) on 120 lM Spectrozyme-PL in the absence of additives ... relationships In an attempt to identify the site of action of the fattyacids in the plasmin molecule, the amidolytic activity of two truncated plasmin variants was examined(Fig. 8). Miniplasmin (des-kringle...

Báo cáo khoa học: Presence of melanocortin (MC4) receptor in spiny dogﬁsh suggests an ancient vertebrate origin of central melanocortin system pot

... dogﬁsh actin bysequencing.DiscussionWe describe here the cloning of the ﬁrst MC receptor in spiny dogﬁsh. The phylogenetic analysis indicates that thenew receptor is an ortholog of the MC4 ... brain stem but not in cerebellum (Fig. 6). The presence of MC4 in the hypothalamus is not surprising. Thisreceptor is expressed in hypothalamus in all species inves-tigated and is important in ... brain but rather surprisingly also in the eye, gastro-intestinal tract and ovaries. In chicken, the MC4 receptor isexpressed in a wide variety of peripheral tissues, includingthe heart, adrenal...

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