enzymes in the open sea
Regulation of navigation and vessel-source pollution in the Northern Sea Route - Article 234 and state practice
... within the inland waters, territorial sea or EEZ adjoining the USSR northern coast and that it includes seaways suitable for guiding vessels in ice Due to the vagueness concerning leading in Article ... (NSRA), including the Guide to Navigating through the Northern Sea Route (NSR Navigation Guide) and the Requirements for the Design, Equipment and Supplies of Vessels Navigating the Northern Sea ... pollution in the Northern Sea Route 231 For Russia, ships must satisfy special crewing and training requirements for navigating in ice.56 For the USA, requirements as to manning, training, qualifications...
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Tài liệu Báo cáo khoa học: Mg2+-modulated KMnO4 reactivity of thymines in the open transcription complex reflects variation in the negative electrostatic potential along the separated DNA strands ppt
... clearly in the footprints obtained even at 13 C and the lowest oxidant dose applied and in the absence of MgCl2 In the footprints from reactions carried out in the presence of 10 mm MgCl2, all these ... intramolecular stacking of thymine residues brings the two C(5)ẳC(6) bonds in close proximity, thereby increasing the probability of their attack by MnO4 and decreasing the effect of the negative phosphate ... the kinetics of nucleotide oxidation does not affect the intrinsic rate of the reaction and is due solely to the screening of the negative charge on the phosphate group, thereby diminishing the...
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Metals, Metalloids and Radionuclides in the Baltic Sea Ecosystem docx
... psu in the Gotland Deep Changes in the surface water temperature in the Baltic Sea are governed by the increased continental influence in the east and the considerable north-south extent of the ... became inversely proportional to the salinity because the major source of the radionuclide was then identified in the low saline waters of the Baltic Sea Since the Chernobyl accident, the Baltic Sea ... was the long-lasting stagnation in the Baltic deep waters, the longest ever been observed during the Twentieth century As a result of the diminishing salinity and increasing temperature of the...
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Báo cáo khoa học: Oxidative stress and apoptotic events during thermal stress in the symbiotic sea anemone, Anemonia viridis potx
... [17–20] These studies demonstrated the role of ROS production in the temperature-induced bleaching During thermal stress, although the enzymatic antioxidant defenses are induced [18,21–23], the additional ... subunit in regular type The large (p20) subunit in bold and the small subunit fit between the two domains Residues boxed are the component of substrate binding site Asterisks indicate the His ... the extensive gene loss in protostomes B After days of heat stress, the increase in at least two caspase-like activities detected in the animal tissue and the DNA fragmentation induction in the...
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Báo cáo khóa học: Two distinct heterodisulfide reductase-like enzymes in the sulfate-reducing archaeon Archaeoglobus profundus pptx
... proteins on Q-Sepharose, in addition to the HmeCD-containing fraction further heme-containing fractions were observed which contained 20% of the total heme present in the membrane fraction These ... of the much more intensive [2Fe)2S]1+ signal at g ¼ 1.890 (Fig 6A) These signals are indicative of spin–spin coupling between the different [4Fe)4S]1+ clusters in the enzyme [33,34] The duroquinone ... polypeptides were determined by Edman degradation (Table 1) Using these sequences, the genome of A fulgidus was searched for corresponding genes [13] The amino-terminal sequence of the 53-kDa polypeptide...
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Báo cáo sinh học: " Mimivirus relatives in the Sargasso sea" docx
... have their closest homologues in the Sargasso Sea data set To further assess the viral nature of these unknown microbes, we studied the phylogenetic relationships between the corresponding Mimivirus ... (approximately to scale) The three colinear Mimivirus homologues are in green Unmatched ORF extremities are indicated by dots The two diagonal lines indicate where the two contigs are joined on the scaffold ... exhibiting a reciprocal best match relationship with the corresponding Mimivirus ORF (putative orthologues) (YES in the rightmost column) The three cases (red lines in Table 1) exhibiting the best...
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báo cáo hóa học:" Mimivirus relatives in the Sargasso sea" pdf
... have their closest homologues in the Sargasso Sea data set To further assess the viral nature of these unknown microbes, we studied the phylogenetic relationships between the corresponding Mimivirus ... (approximately to scale) The three colinear Mimivirus homologues are in green Unmatched ORF extremities are indicated by dots The two diagonal lines indicate where the two contigs are joined on the scaffold ... exhibiting a reciprocal best match relationship with the corresponding Mimivirus ORF (putative orthologues) (YES in the rightmost column) The three cases (red lines in Table 1) exhibiting the best...
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SEA LEVEL RISE AFFECTING THE VIETNAMESE MEKONG DELTA: WATER ELEVATION IN THE FLOOD SEASON AND IMPLICATION FOR RICE PRODUCTION pdf
... dry season will be substantially higher than in the flood season In the dry season, even small increments in the sea level will affect large areas of the VMD On the other hand, water cover in the ... Modeling the Water Regime in the Delta The water level in the Mekong Delta is in uenced by water discharge of the Mekong River as well as the tidal variations in the South China Sea and the Gulf ... respectively, while there was only a minor effect on the m amsl contour line At the peak of the flood season in October, the shifts in contour lines are generally smaller and the northern part of the Delta...
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Báo cáo lâm nghiệp: "The angular distribution of diffuse photosynthetically active radiation under different sky conditions in the open and within deciduous and conifer forest stands of Quebec and British Columbia, Canada" pptx
... for refining PAR models and determining the potential impact of the different angular distribution of PAR profiles in shaping crown morphology and in influencing light interception by the understory ... atmosphere to the viewer [27] Since the scattering is proportional to the inverse fourth power of the wavelength, the scattering of short PAR wavelengths is thus greater than the scattering of the longer ... plots The center of each plot was located at least m from the closest stem in the middle of a group of trees Since the objective of the study was to examine the effect of the forest canopy on the...
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Enzymes in the Environment: Activity, Ecology and Applications - Chapter 1 ppsx
... systems involving phenoloxidase enzymes The deamination of amino acids, such as serine, phenylalanine, proline, methionine, and cysteine by birnessite, and the role of pyrogallol in influencing their ... mask the analytical problems described Changes in the microbial composition of the inoculum may occur during the incubation (Table 1) Indeed, not all constituents of the inoculum contribute to the ... (1,2,203–205) In theory, an index integrating the enzyme activities that catalyze the reactions limiting the rate of the main metabolic processes could be used to measure microbial functional diversity The...
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Enzymes in the Environment: Activity, Ecology and Applications - Chapter 2 pptx
... activity Products of substrates containing aromatic amines, including the commonly used 7-amino-4-methylcoumarin, 7-amino-4-trifluoromethylcoumarin, and 6-aminoquinoline, are partially protonated at ... aminopeptidase induction operates, especially since amino acids are reported to act as inducers in some bacteria, rather than acting in their more predictable role as end-product inhibitors The ... substrate When the substrate is available in the environment, there is a dramatic increase in the production rate of the particular enzyme Synthesis continues at this amplified rate until the inducer...
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Enzymes in the Environment: Activity, Ecology and Applications - Chapter 3 pdf
... around 40 µM C in the ocean’s interior (65) Despite the lower concentrations in the deep ocean, the major fraction of the DOM is found in the aphotic zone of the ocean, comprising ϳ90% of the total ... another coastal site, although rate constants in the upper 10 cm of the sediments were higher in the spring/ summer than in the winter Copyright © 2002 Marcel Dekker, Inc Because C in ux to the ... significantly to the loss of organic material from settling particles during sinking and thus determines the efficiency of the biological C pump (organic matter transport from the sea surface to the seabed)...
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Enzymes in the Environment: Activity, Ecology and Applications - Chapter 4 potx
... that of the SBW 25 strains The DAPGϩ strain caused a significant decrease in the shootto-root ratio in comparison to that of the control and other inoculants, indicating plant stress F113 increased ... caused a decrease in the available phosphate, thus causing an overall increase in activity The decrease in available P may have taken the form of an increase in the available carbon in the rhizosphere ... would increase the microbial P demand Inverse trends were found with the C and N cycle enzymes in comparison to the general trend found in the P and S cycle enzymes The F113 (DAPGϩ) strain was...
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Enzymes in the Environment: Activity, Ecology and Applications - Chapter 5 ppt
... (55) The increase in fungal structures that penetrate the cell wall during the logarithmic stage of root colonization may explain the increase in the different activities at this time (56) The ... Marcel Dekker, Inc Figure Enzymes involved in P transport in AM roots poly-P was observed in the external hyphae, and short-chain poly-P was higher in the internal hyphae (67) Long-chain poly-P seems ... liberating ATP (63) The Pi (or ATP) so released in the arbuscule then would be transferred into the host (66) Copyright © 2002 Marcel Dekker, Inc The presence of intense ATPase activity indicates there...
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7Microbial Enzymes in the Biocontrol of Plant Pathogens and aEnzymes in the Environment: Activity, Ecology and Applications - Chapter 7PestsLeonid Chernin and Ilan ChetThe ppt
... chitin-containing fungi The degree of inhibition was proportional to the level of chitin in the cell wall of the target fungus Combining the two enzymes resulted in a synergistic increase in antifungal ... Both the fungus and the host insect have developed mechanisms involved in the host–parasitic interaction of these organisms; the insects release inhibitors against the fungal protease, in uencing ... de novo synthesis of a set of cell-wall-degrading enzymes that aid the parasite in penetrating the host and completing its destruction Lectins, the sugar-binding proteins or glycoproteins of nonimmune...
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Enzymes in the Environment: Activity, Ecology and Applications - Chapter 8 potx
... and the state of the cells producing the enzymes is essential, because both affect the quantity of enzyme detected in the environmental sample and the kinetics of the reaction Ultimately, the ... (28–30,94) The assumption in all of these studies is that the initial rate observed in the incubated fresh soil sample represents that enzyme’s presence in the soil prior to collection from the field The ... due to their physical location within the soil matrix (1,122) Further complications in interpreting or predicting biodecomposition kinetics may arise from the limited water solubility of the potential...
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Enzymes in the Environment: Activity, Ecology and Applications - Chapter 9 potx
... II ENZYMES OF INTEREST The enzymes of interest in decomposition studies are generally those that break down the principal components of plant fiber (cellulose, hemicellulose, pectin, lignin) into ... amendment varied with the lignin content of the litter Dogwood, a fast-decomposing, low-lignin litter, decomposed up to 25% faster than did the control plots Maple, intermediate in lignin content, decomposed ... dogwood, the activities of peptidase and chitinase, enzymes involved in N acquisition, Copyright © 2002 Marcel Dekker, Inc were repressed by added N; for maple and oak, these activities increased The...
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Enzymes in the Environment: Activity, Ecology and Applications - Chapter 10 docx
... concluded that the higher levels of these enzymes in the upper part of the profile could be due to the presence of fungi (chitin in the cell walls) and arthropods (chitin in the exoskeleton) serving as ... result in low decomposition rates This has been examined by incubating pine needles in litter bags in a southern Italian pine forest (49) Both the C/N ratio and the lignin content of the litter ... was demonstrated for the fungal community in the preceding experiments If the fungal populations are removed from the litter or their growth is inhibited from the beginning of the decomposition...
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Enzymes in the Environment: Activity, Ecology and Applications - Chapter 11 ppsx
... LϪ1 in H O Several p H values in the 4–12 range were obtained by adding HCl or NaO H (11) The state of the protein in solution is obtained from the spectral difference between the protein in solution ... quantity of bovine serum albumin (BSA) introduced in the clay suspension increases, and at a pH corresponding to the i.e.p of the BSA (pH 4.7) The increase is linear, followed by a plateau The plateau ... Ref 52.) the reversal of the unfolding of the adsorbed enzyme therefore would be greater than the thermal energy, kT, available to the system Inadequacy of the Interfacial pH Hypothesis The irreversible...
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Enzymes in the Environment: Activity, Ecology and Applications - Chapter 12 ppsx
... loading (73) In drinking water purification systems, sand filters containing microbial communities are used to remove potential pathogens by trapping them within the EPS matrix of the biofilm (72) In ... growth in the vicinity of the roots, and, in turn, the microorganisms fix nitrogen, assist the plant in adsorption of nutrients from the soil, and protect the roots against pathogens Another example ... hydrolytic enzymes into the soil, and these enzymes are capable of hydrolyzing pesticides Degradation by fungal enzymes may be due to less specific enzymes, as in the case of lignin-degrading enzyme...
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