Reference Type: Journal Article Record Number: 113 Author
Download 1.4 Mb.
|
Notes: English URL: Author Address: AZIZ, A, UNIV DHAKA,DEPT BOT,DHAKA 1000,BANGLADESH. Reference Type: Book Record Number: 170 Author: Jacobsen, B. A. Year: 1994 Title: Bloom formation of Gloeotrichia echinulata and Aphanizomenon flos-aquae in a shallow, eutrophic, Danish lake Series Editor: Descy, J. P.; Reynolds, C. S.; Padisak, J. Number of Pages: 193-197 ISBN: 0018-8158 Accession Number: 3645801 Keywords: eutrophic lakes; phytoplankton; algal blooms; algae; biomass; sediments; lakes; Cyanophyta; Cyanophyta Denmark, Arreskov L.; algal blooms; eutrophic lakes Freshwater Q1 01461 Plankton; SW 0850 Lakes; D 04310 Freshwater; K 03009 Algae
Abstract: Over a period of four years, the seasonal periodicity of dominant phytoplankton species in a shallow, eutrophic Danish lake changed markedly. Cyanophytes prevailed during the summer period of all four years. In the first three years, species of Microcystis, Anabaena and Aphanothece dominated, whereas in the fourth year of investigation, these algae were replaced by Gloeotrichia echinulata (J. E. Smith) Richter and Aphanizomenon flos-aquae (L.) Ralfs. The most striking environmental differences in the fourth year as compared with the previous three years, were an increase in transparency, from about 0.5 meter in 1989-1991 to more than 2 metres preceding the summer maximum in 1992, and a simultaneous occurrence of low oxygen concentrations. A collapse of the fish population was followed by an increased proportion of large Cladocerans in the zooplankton. Improved light conditions at the bottom and grazing pressure from large Cladocerans favoured growth of the large colony forming blue-green algae, Gloeotrichia echinulata and Aphanizomenon flos-aquae. These species germinate from resting spores in the sediment and are able to sustain some growth there before migration to the lake water. The transfer of algal biomass from the bottom sediment to the water phase was accompanied by a marked increase in concentrations of particulate phosphorus and nitrogen in the entire lake. Notes: 9. Workshop of the International Association of Phytoplankton Taxonomy and Ecology (IAP), Mont Rigi (Belgium), 10-18 Jul 1993 Phytoplankton in turbid environments: rivers and shallow lakes., 1994 Hydrobiologia, vol. 289, no. 1-3 English
Book Monograph; Conference Author Address: Lab. Environ. Biol. ApS, Baunebjergvej 5, DK-3050 Humleboek, Denmark Reference Type: Journal Article Record Number: 174 Author: Pettersson, Kurt; Herlitz, Eva; Istvanovics, Vera Year: 1993 Title: The role of Gloeotrichia echinulata in the transfer of phosphorus from sediments to water in Lake Erken Journal: Hydrobiologia Volume: 253 Issue: 1-3 Pages: 123-9 Accession Number: AN 1993:433840 Keywords: Environmental transport (of phosphorus, from sediment into water, Gloeotrichia echinulata effect on, of Lake Erken, Sweden); Gloeotrichia echinulata (phosphrus transport from sediment into water by, of Lake Erken, Sweden); Geological sediments (lake, phosphrus in, Gloeotrichia echinulata transport of, into water, of Lake Erken, Sweden); Waters (lake, phosphrus in, from sediment, Gloeotrichia echinulata effect on, of Lake Erken, Sweden) Gloeotrichia echinulata phosphorus sediment water Lake Abstract: The abundance of Gloeotrichia echinulata colonies in the sediments of Lake Erken, Sweden, and their P content were studied to det. the contribution of Gloeotrichia colonies to total sediment P. The potential size of the algal inoculum and the migration to the water during summer were estd. The surplus P content of the resting colonies in the sediment was .apprx.45% of total P, which maximized at 8.5 mg P/mg or 81 ng P/colony. The C:P ratio in the early colonies appearing in the lake water was 50:1, while the ratio stabilized at 150 during the major migration period. The internal supply of surplus P was used during the pelagic growth of the colonies. The internal P loading to the epilimnion of Lake Erken due to Gloeotrichia migration could, from the measurements of the increase in particulate epilimnetic P, be estd. at 40 mg P the sediment before and during the migration verified this value to be a conservative est. of the internal P loading due to Gloeotrichia migration to the epilimnion in the lake. The sediment P content calcd. from the P concn. in early epilimnion colonies resulted in a value of 35 mg P/g as a max. This corresponds to only 3% of the total P content in the lake sediment. [on SciFinder (R)] Notes: CAN 119:33840 61-1
Water Inst. Limnol.,Uppsala Univ.,Norrtaelje,Swed. Journal 0018-8158 written in English. 7723-14-0 (Phosphorus) Role: OCCU (Occurrence) (in sediment and water, Gloeotrichia echinulata effect on, of Lake Erken, Sweden) Reference Type: Book Record Number: 172 Author: Pettersson, K.; Herlitz, E.; Istvanovics, V. Year: 1993 Title: The role of Gloeotrichia echinulata in the transfer of phosphorus from sediments to water in Lake Erken Series Editor: Boers, P. C. M.; Cappenberg, ThE; Raaphorst, Wvan Number of Pages: 123-129 ISBN: 0018-8158 Accession Number: 2932310 Keywords: phosphorus; biogeochemical cycle; sediment chemistry; sediment-water exchanges; biogeochemistry; Cyanophyta; Gloeotrichia echinulata Cyanophyta; Gloeotrichia echinulata; Sweden, Erken L.; phosphorus; biogeochemical cycle; sediment-water exchanges Freshwater Q2 02187 Geochemistry of sediments; Q1 01482 Ecosystems and energetics; K 03009 Algae; Q4 27480 Environmental Applications/Impact; D 04310 Freshwater
Proceedings of the third international workshop on phosphorus in sediments., 1993 Hydrobiologia, vol. 253, no. 1-3 English
Book Monograph; Conference Author Address: Uppsala Univ., Inst. Limnol., Erken Lab., Norr Malma 4200, S-761 73 Norrtaelje, Sweden Reference Type: Journal Article Record Number: 175 Author: Khatoon, A. A.; Aziz, A. Year: 1993 Title: Morphogenesis of Blue-Green-Algae .5. Akinete Differentiation in Gloeotrichia Natans Journal: Bangladesh Journal of Botany Volume: 22 Issue: 2 Pages: 223-225 Date: Dec Accession Number: ISI:A1993MN12500020 Keywords: morphogenesis; blue green algae; akinete; gloeotrichia natans Notes: English URL: Author Address: KHATOON, AA, UNIV DHAKA,DEPT BOT,DHAKA 1000,BANGLADESH. Reference Type: Journal Article Record Number: 176 Author: Jensen, T. E. Year: 1993 Title: A Morphometric Study of Natural and Laboratory Grown Gloeotrichia Species Journal: Microbios Volume: 74 Issue: 301 Pages: 219-226 Accession Number: ISI:A1993LR35000003 Keywords: morphometric analysis; gloeotrichia plectonema-boryanum cyanophyceae; anabaena-flos-aquae; heavy-metals; components; bodies; algae
ALLEN MM, 1968, J PHYCOL, V38, P1 CORPE WA, 1992, MICROBIAL ECOL, V24, P181 FLIESSER SB, 1982, CYTOBIOS, V33, P203 JENSEN TE, 1970, CYTOLOGIA, V35, P132 JENSEN TE, 1981, CYTOBIOS, V32, P129 JENSEN TE, 1982, ENVIRON EXP BOT, V22, P319 JENSEN TE, 1982, ENVIRON POLLUT A, V27, P119 JENSEN TE, 1984, CYTOBIOS, V41, P35 JENSEN TE, 1985, ARCH HYDROBIOL S71, V38, P33 LANARAS T, 1981, PLANTA, V153, P279 LUFT JH, 1961, J BIOPHYS BIOCH CYTO, V9, P409 PANKRATZ HS, 1963, AM J BOT, V50, P387 RACHLIN JW, 1982, ARCH ENV CONTAM TOXI, V11, P323 RACHLIN JW, 1984, ARCH ENVIRON CON TOX, V13, P143 RACHLIN JW, 1985, ARCH ENVIRON CON TOX, V14, P395 RAIL C, 1990, ARCH ENV CONTAM TOXI, V19, P478 SHIVELY JM, 1991, CAN J BOT, V69, P957 SICKOGOAD L, 1977, PROTOPLASMA, V93, P147 SICKOGOAD L, 1979, J PHYCOL, V15, P316 SICKOGOAD L, 1982, PROTOPLASMA, V111, P75 STARR RC, 1978, J PHYCOL S, V14, P47 STEMPAK JG, 1964, J CELL BIOL, V22, P697 WEIBEL ER, 1973, PRINCIPLES TECHNIQUE, V3, P239 English
oxygen; associated species; seasonal variations; population functions; growth; activity patterns; regression analysis; variance analysis; plant morphology; Gloeotrichia echinulata; Gloeotrichia natans; Gloeotrichia pisum; Microcystis; Aphanizomenon flos-aquae; Anabaena circinalis; USA, Washington, Seattle sediment
Freshwater Q1 01461 Plankton Abstract: Observations on the life history of Gloeotrichia echinulata were made during the course of a two-season study. Migration out of the sediments was preceded by increases in illumination at the sediment surface. Positive correlations were found between migration rate and both temperature and oxygen concentration. G. echinulata was found to overwinter as a spherical aggregation of akinetes embedded in a thick mucilage. Germination, triggered by light, and a short period of growth probably takes place on the sediment, before the onset of gas vacuolation and the subsequent ascent into the plankton. Notes: 1993 0003-9136 Bibliogr.: 45 ref. English
Journal Article Author Address: Western Washington Univ., Huxley Coll. Environ. Stud., Bellingham, WA 98225, USA Reference Type: Journal Article Record Number: 189 Author: Querijero-Palacpac, Nirianne Marie; Martinez, Milagrosa R.; Boussiba, Sammy Year: 1990 Title: Mass cultivation of the nitrogen-fixing cyanobacterium Gloeotrichia natans, indigenous to rice-fields Journal: Journal of Applied Phycology Volume: 2 Issue: 4 Pages: 319-25 Accession Number: AN 1991:581486 Keywords: Gloeotrichia natans (nitrogen-fixation and photosynthesis and mass cultivation of); Pigments (of Gloeotrichia natans, carbon dioxide effect on); Biliproteins; Phycocyanins; Phycoerythrins Role: BIOL (Biological study) (of Gloeotrichia natans, carbon dioxide effect on); Nitrogen fixation (of Gloeotrichia natans, light effect on); Photosynthesis (of Gloeotrichia natans, temp. effect on); Light (on nitrogenase activity of Gloeotrichia natans) Gloeotrichia nitrogen fixation rice field phycobiliprotein Abstract: G. natans, a nitrogen-fixing cyanobacterium common in rice fields in the Philippines, was used for studies to establish key features of its physiol. and potential prodn. in outdoor cultures. Under optimal growth conditions (38 Deg, pH 8.0, no carbon enrichment) the specific growth rate of rice-field isolate was 0.076/h. The pH of the medium (between 6.5 and 9.0) did not influence the growth rate, but it did affect phycobiliprotein content, as reflected by a change in color. At pH 7.0 the culture was green-brown, with phycobiliproteins constituting up to 10% of the total protein, while at pH 9.0 the culture was brownish-black and the pigment content was as high as 28% of the total protein. In outdoor cultures the specific growth rate was related directly to cell d. at half this rate. At a stirring of 30 rpm, daily prodn. of outdoor cultures harvested to maintain cell densities of 0.7, 1.15 and 1.5 g L-1 were 14.7, 17.1 and 18.1 g m-2 day-1, resp. This rate of prodn. was maintained for more than 45 days. Phycobiliprotein content in the culture kept at a d. of 1.5 g L-1 reached 14% of the total biomass. [on SciFinder (R)] Notes: CAN 115:181486 16-7
Fermentation and Bioindustrial Chemistry Natl. Inst. Biotechnol. Appl. Microbiol.,Los Banos,Philippines. Journal 0921-8971 written in English. 7727-37-9 Role: BIOL (Biological study) (nitrogen fixation, of Gloeotrichia natans, light effect on); 479-61-8 (Chlorophyll a) Role: BIOL (Biological study) (of Gloeotrichia natans, carbon dioxide effect on); 9013-04-1 (Nitrogenase) Role: BIOL (Biological study) (of Gloeotrichia natans, light effect on); 124-38-9 (Carbon dioxide) Role: BAC (Biological activity or effector, except adverse), BSU (Biological study, unclassified), BIOL (Biological study) (phycobiliprotein compn. in Gloeotrichia natans response to) Reference Type: Journal Article Record Number: 191 Author: Mishra, A. K.; Tiwari, D. N. Year: 1990 Title: Effect of amino acids and its analogues on Gloeotrichia ghosei and its non-nitrogen fixing mutants Journal: Acta microbiologica Hungarica Volume: 37 Issue: 1 Pages: 25-32 Accession Number: 91089807 Keywords: Aerobiosis; *Amino Acids: PD, pharmacology; Anaerobiosis; Culture Media; Cyanobacteria: DE, drug effects; Cyanobacteria: GE, genetics; *Cyanobacteria: GD, growth & development; Mutation; Nitrogen Fixation 0 (Amino Acids); 0 (Culture Media) Abstract: Mutants of Gloeotrichia ghosei fil1 het++ and pol- het- failed to grow on molecular nitrogen and required combined nitrogen sources. NO3- and NH4+ supported maximum growth of parent and mutant strains under aerobic conditions but not under reducing anaerobic or heterotrophic conditions. Glutamine and tryptophan were superior for the parent strain compared to inorganic nitrogen sources. By mutants only glutamine was used whereas tryptophan was inhibitory to them. Development of heterocyst and polarity in the parent and in fil1 het++ was inhibited in the presence of all combined nitrogen sources compared to molecular nitrogen which supported their formation. MSX and AZT (analogues of glutamine and tryptophan, respectively) completely inhibited the growth of all strains in the nitrogen-fixing and NH4(+)-medium. When glutamine and tryptophan were added to MSX- and AZT-containing medium, growth of parent strain was similar to that of the respective amino acids. The mutants grew only with glutamine + MSX, and tryptophan + AZT complex medium inhibited growth. [on SciFinder (R)] Notes: Centre of Advanced Study in Botany, Banaras Hindu University, Varnasi, India 0231-4622 Hungary Journal; Article; (JOURNAL ARTICLE) English Reference Type: Journal Article Record Number: 190 Author: Mishra, A. K.; Tiwari, D. N. Year: 1990 Title: Reversion of Mutation in Non-Nitrogen-Fixing Mutants of the Cyanobacterium Gloeotrichia-Ghosei Journal: Microbios Volume: 61 Issue: 246 Pages: 7-16 Accession Number: ISI:A1990CQ42000001 Notes: Cited References: CURRIER TC, 1977, J BACTERIOL, V129, P1556 DEMARSAC NT, 1987, CYANOBACTERIA, P251 DRAKE JW, 1969, ANNU REV GENET, V3, P347 HERBERT D, 1971, METHODS MICROBIOLO B, V5, P209 HERDMAN M, 1972, J GEN MICROBIOL, V70, P213 KRATZ WA, 1955, AM J BOT, V42, P282 MISHRA AK, 1983, THESIS BANARAS HINDU MISHRA AK, 1986, NEW PHYTOL, V103, P69 SAFFERMAN RS, 1964, J BACTERIOL, V88, P771 SINGH HN, 1977, ARCH MICROBIOL, V114, P155 SINGH RN, 1976, J CYTOL GENET, V11, P76 STEWART WDP, 1975, BIOCHEM BIOPH RES CO, V62, P62 TIWARI DN, 1977, BEITR BIOL PFLANZ, V53, P177 TIWARI DN, 1979, MICROBIOS LETT, V12, P121 VANBAALEN C, 1980, METHOD ENZYMOL, V69, P38 English
CARR NG, 1973, BIOL BLUE GREEN ALGA, P39 CURRIER TC, 1977, J BACTERIOL, V129, P1545 FAY P, 1968, NATURE, V220, P810 FOGG FE, 1944, NEW PHYTOL, V43, P164 GOTTO JW, 1979, J BACTERIOL, V140, P327 HASELKORN R, 1978, ANNU REV PLANT PHYS, V29, P319 HAURY JF, 1978, J BACTERIOL, V136, P688 HERBERT D, 1971, METHODS MICROBIOLO B, V5, P209 KRATZ WA, 1955, AM J BOT, V42, P282 KULASOORIYA SA, 1972, P ROY SOC B, V181, P199 MISHRA AK, 1986, NEW PHYTOL, V103, P69 MYERS J, 1955, J GEN PHYSIOL, V39, P11 NEILSON A, 1971, ARCH MIKROBIOL, V76, P139 OGAWA RE, 1969, LIMNOL OCEANOGR, V14, P342 RIPPKA R, 1978, J GEN MICROBIOL, V105, P83 SAFFERMAN RS, 1964, J BACTERIOL, V88, P771 SINHA BD, 1973, ANN BOT, V37, P673 SYRETT PJ, 1972, PHYSL BIOCH ALGAE, P171 TIWARI DN, 1977, BEITR BIOL PFLANZ, V53, P177 WILCOX M, 1975, ARCH MICROBIOL, V103, P219 WOLK CP, 1980, NITROGEN FIXATION, V2, P279 YADAVA PK, 1979, MOL GEN GENET, V173, P153 English
URL: Author Address: BANARAS HINDU UNIV,CTR ADV STUDY BOT,VARANASI 221005,UTTAR PRADESH,INDIA. Reference Type: Journal Article Record Number: 199 Author: Khan, K. R.; Maxwell, T. F.; Forest, H. S. Year: 1989 Title: Taxonomic implications of developmental morphology in blue-green algae: Rivularia, Gloeotrichia , and Calothrix Journal: Journal of Phycology Volume: 25 Issue: 2 suppl. Pages: 15 Alternate Journal: J. Phycol. Accession Number: 2130037 Keywords: morphogenesis; taxonomy; Cyanophyta; Rivularia; Gloeotrichia; Calothrix algal culture Q1 01223 Taxonomy and morphology; Q3 01585 Plant culture Abstract: Cultures were obtained from collections and started with material collected in the field. Included were planktonic and non-planktonic forms, with and without gas vacuoles. Although assigned to different genera in classical taxonomy, all of the algae showed similarity in development, including stages in which the trichomes are not tapered and lack heterocysts. Gas vacuoles were not a constant character in any culture. Small differences were observed among cultures, but they were interpreted as being in the order of population variation not taxonomic categories. Notes: Annu. Meet. of the Phycological Soc. of America, Toronto, Ont. (Canada), 6-10 Aug 1989 1989
0022-3646 Summary only. English Journal Article; Conference; Summary Author Address: State Univ. New York, Geneseo, NY 14454-1401, USA Reference Type: Journal Article Record Number: 201 Author: Aziz, A.; Almousawi, A.; Whitton, B. A. Year: 1989 Title: Morphogenesis of Blue-Green-Algae .2. Hair Differentiation in Gloeotrichia Directory: chemistry chemistry -> Summer 2015 Research Opportunities for Chemistry & Biochemistry Undergraduates chemistry -> Application for Summer Undergraduate Research Program nsf research Experiences for Undergraduates (reu) – 2015 Please Print Clearly or Type chemistry -> Application for Summer Undergraduate Research Program nsf research Experiences for Undergraduates (reu) – 2016 Please Print Clearly or Type chemistry -> Summer 2014 Research Opportunities for Chemistry & Biochemistry Undergraduates chemistry -> Summer 2016 Research Opportunities for Chemistry & Biochemistry Undergraduates chemistry -> Cloud Point Extraction Methodology for Separation and Microamounts Determination of Lead chemistry -> Spring Hill College List of Nearby Restaurant Options Atlanta Bread Company chemistry -> Where the heck is Fernando de Noronha? chemistry -> Topics 6 & 16: Kinetics 1 Collision theory and rates of reaction Download 1.4 Mb. Share with your friends:
|