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3. Biogeochemistry and hyperaccumulators.

After an overview of biogeochemical studies and biogeochemical exploration, biochemical prospecting in various countries is discussed and some case studies of biochemical prospecting in the herbarium are presented.

Author(s) : Brooks, R. R.

Publisher : CAB INTERNATIONAL, Wallingford, UK

Book chapter : Plants that hyperaccumulate heavy metals: their role in phytoremediation, microbiology, archaeology, mineral exploration and phytomining. 1998 pp.95-118 ref.88

5. Assessment of extracellular enzymatic activity in soil.

Guidance on the use of ezymatic methods for estimating enzyme activity in soil is provided in which soil enzyme assays and data analysis and interpretation are discussed.

Author(s) : Morra, M. J.

Publisher : American Society for Microbiology (ASM), Washington, USA

Book chapter : Manual of environmental microbiology. 1997 pp.459-465 ref.51

6. Antibiotic production by soil and rhizosphere microbes in situ.

Author(s) : Thomashow, L. S.; Bonsall, R. F.; Weller, D. M.

Publisher : American Society for Microbiology (ASM), Washington, USA

Book chapter : Manual of environmental microbiology. 1997 pp.493-499 ref.34

9. PCR: applications for plant and soil microbes.

Author(s) : Pepper, I. L.

Publisher : American Society for Microbiology (ASM), Washington, USA

Book chapter : Manual of environmental microbiology. 1997 pp.437-444 ref.32

11. Hemolymph proteins and molting in crustaceans and insects.

The exoskeleton of crustaceans and insects is formed by cells of the hypodermis, but several haemolymph proteins contribute to the synthesis of the new exoskeleton. These haemolymph proteins share a surprising degree of sequence similarity and are members of the haemocyanin gene family....

Author(s) : Terwilliger, N. B.

Conference paper; Journal article : American Zoologist 1999 Vol.39 No.3 pp.589-599 ref.3 pp. of

12. Cuticular proteins in insects and crustaceans.

Comparisons between crustacean and insect cuticles are hampered by the paucity of cuticular protein sequences for the former. Sufficient complete sequences are available for insect cuticular proteins to allow recognition of conserved motifs and relationships among proteins that reflect the type of...

Author(s) : Willis, J. H.

Conference paper; Journal article : American Zoologist 1999 Vol.39 No.3 pp.600-609 ref.37

13. Purification and characterization of a cell-surface lectin (lectin II) from Agrobacterium radiobacter NCIM 2443.

A lectin was isolated from the cell surface of A. radiobacter [A. tumefaciens] and purified. SDS-PAGE analysis revealed that the lectin was a monomer of 40 kDa. The lectin had a pI of 9.15 and amino acid analysis showed that 44% of the amino acids were hydrophobic. The lectin agglutinated rabbit...

Author(s) : Syed, F. B. F.; Joshi, B. N.; SivaRaman, H.; Khire, J. M.; Khan, M. I.

Journal article : Biochemistry and Molecular Biology International 1999 Vol.47 No.3 pp.361-367 ref.22

14. Variations in enzyme activity of tebuconazole tolerant biotypes of Trichoderma viride.

Biotypes of T. viride (a mungbean rhizosphere isolate antagonistic to Macrophomina phaseolina; sensitive to 20ppm tebuconazole) tolerant to tebuconazole were obtained using UV or γ-rays. The biotypes, UMT1A & UMT4 (tolerant to 50 ppm tebuconazole) and UMT1 & GMT2 (tolerant to 100 ppm...

Author(s) : Kumar, A.; Gupta, J. P.

Journal article : Indian Phytopathology 1999 Vol.52 No.3 pp.263-266 ref.15

15. ppGpp accumulation in Pseudomonas aeruginosa and Pseudomonas fluorescens subjected to nutrient limitation and biocide exposure.

The effect of a commonly used biocide, 1,2-benzisothiazolin-3-one (BIT) on guanosine 5′-diphosphate 3′-diphosphate (ppGpp) accumulation in the pathogen, Pseudomonas aeruginosa PAO1, and an environmental isolate, P. fluorescens, was examined. It is concluded that BIT was able to induce a stringent...

Author(s) : Greenway, D. L. A.; England, R. R.

Journal article : Letters in Applied Microbiology 1999 Vol.29 No.5 pp.298-302 ref.26

16. Structural analysis of a novel putative capsular polysaccharide from Pseudomonas (Burkholderia) caryophylli strain 2151.

A novel putative capsular polysaccharide consisting of smallcap˜D-Glcp and smallcap˜D-Fruf in the molar ratio of 1:1 was isolated as minor constituent from the lipopolysaccharide (LPS) fraction of Burkholderia caryophylli. Its structure was determined, using mainly 1- and 2-dimensional NMR...

Author(s) : Molinaro, A.; Castro, C. de; Evidente, A.; Holst, O.; Parrilli, M.

Journal article : European Journal of Biochemistry 1999 Vol.259 No.3 pp.887-891 ref.23

17. Production of amylase by A. niger in a cheap solid medium using rice bran and agricultural materials.

In the production of amylase by Aspergillus niger using a solid medium of rice bran, a significant increase in yield was obtained using supplements of wheat and soyabean flour and maize gluten. All these supplements gave significantly higher yields than peptone. At the optimum concentration of 3%...

Author(s) : Akpan, I.; Bankole, M. O.; Adesemowo, A. M.; Latunde-Dada, G. O.

Journal article : Tropical Science 1999 Vol.39 No.2 pp.77-79 ref.9

18. Positive regulation of adenylyl cyclase activity by a Gαi homolog in Neurospora crassa.

The roles of GNA-1 and GNA-2 in cAMP metabolism in N. crassa was investigated. Mg2+ ATP-dependent adenylyl cyclase activity, cAMP levels and cAMP phosphodiesterase activity were measured in strains with mutations in the gna-1 and/or gna-2 genes. Mg2+ ATP-dependent adenylyl cyclase activity in...

Author(s) : Ivey, F. D.; Qi Yang; Borkovich, K. A.

Journal article : Fungal Genetics and Biology 1999 Vol.26 No.1 pp.48-61 ref.85

19. Tobacco mosaic virus particle structure and the initiation of disassembly.

A review of the structure of tobacco mosaic tobamovirus (TMV) and the initiation of disassembly is presented. The structure of an intact TMV particle was determined at 2.9 Å resolution using fibre diffraction methods. All residues of the coat protein and the 3 nucleotides of RNA that are bound to...

Author(s) : Stubbs, G.

Conference paper; Journal article : Philosophical Transactions of the Royal Society of London. Series B, Biological Sciences 1999 Vol.354 No.1383 pp.551-557 ref.45

20. The regulator gene phoB mediates phosphate stress-controlled synthesis of the membrane lipid diacylglyceryl-N,N,N-trimethylhomoserine in Rhizobium (Sinorhizobium) meliloti.

Experiments which show that the membrane lipid pattern of the free-living microsymbiotic bacterium Rhizobium (Sinorhizobium) meliloti is altered at low phosphate concentrations are described. When phosphate is growth limiting, an increase in sulpholipids, ornithine lipids and the de novo synthesis...

Author(s) : Geiger, O.; Röhrs, V.; Weissenmayer, B.; Finan, T. M.; Thomas-Oates, J. E.

Journal article : Molecular Microbiology 1999 Vol.32 No.1 pp.63-73 ref.35

21. The influence of various phenolic compounds on scavenging activity assessed by an enzymatic method.

The effect of pure monomeric and dimeric procyanidins on superoxide anion radicals was studied with an enzymic method and their IC50 was determined. A comparative study of the results suggested that the antiradical potential of these phenolic compounds closely depends on their stereochemical...

Author(s) : Gaulejac, N. S. C. de; Vivas, N.; Freitas, V. de; Bourgeois, G.

Journal article : Journal of the Science of Food and Agriculture 1999 Vol.79 No.8 pp.1081-1090 ref.18

22. Antioxidant activity of resveratrol and alcohol-free wine polyphenols related to LDL oxidation and polyunsaturated fatty acids.

Wine polyphenols were examined for their capacity to protect the lipid and protein moieties of porcine LDL during oxidation. The efficiency of resveratrol (3, 4′, 5, trihydroxystilbene) and defined flavonoids was compared to that of a wine extract (WE) containing 0.5 g/g proanthocyanidols. The...

Author(s) : Frémont, L.; Belguendouz, L.; Delpal, S.

Journal article : Life Sciences 1999 Vol.64 No.26 pp.2511-2521 ref.28

23. Comparison of two methods for the measurement of rat liver methylmalonyl-coenzyme A mutase activity: HPLC and radioisotopic assays.

Several methods have been described for measuring methylmalonyl-coenzyme A mutase (MCM) activity. The most commonly-used method is a radioassay based on the permanganate oxidation of DL[CH3-14C]methylmalonyl-coenzyme A, but radiometric methods are insensitive, laborious, and time-consuming....

Author(s) : Gaire, D.; Sponne, I.; Droesch, S.; Charlier, A.; Nicolas, J. P.; Lambert, D.

Journal article : Journal of Nutritional Biochemistry 1999 Vol.10 No.1 pp.56-62 ref.36

25. Detection of Hrp-secreted proteins in strain CFBP1430 of Erwinia amylovora.

A study was carried out to confirm the Hrp secretion of HrpN in strain CFBP1430 of E. amylovora. A medium which induced expression of hrp genes was identified. HrpN was identified in the secretions of CFBP1430 from solid media but not from the supernatant of liquid media. Two Hrp-secreted proteins...

Author(s) : Gaudriault, S.; Barny, M. A.

Conference paper; Journal article : Acta Horticulturae 1999 No.No. 489 pp.345