Reference Type: Journal Article Record Number: 113 Author
Notes: FLA 00804649 The Royal Society Copyright 1988 The Royal Society URL
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Notes: FLA 00804649
The Royal Society Copyright 1988 The Royal Society URL: http://links.jstor.org/sici?sici=0080-4649%2819880823%29234%3A1276%3C283%3AVOAOTP%3E2.0.CO%3B2-W Reference Type: Journal Article Record Number: 203 Author: Fallowfield, H. J.; Daft, M. J. Year: 1988 Title: The extracellular release of dissolved organic carbon by freshwater cyanobacteria and algae and the interaction with Lysobacter CP-1 Journal: Br. Phycol. J. Volume: 23 Issue: 4 Pages: 317-326 Accession Number: 2585355 Keywords: interspecific relationships; metabolism; phytoplankton; photosynthesis; amino acids; algae; bacteria; aquatic bacteria; Cyanophyta dissolved organic carbon; extracellular release; aquatic bacteria; Lysobacter Freshwater Q1 01483 Species interactions: general; J 02905 Water; K 03049 Algae; Q1 01226 Physiology, biochemistry, biophysics; K 03009 Algae
English
Journal Article Author Address: Dep. Microbiol., West Scotland Agric. Coll., Auchincruive, Ayr KA6 5HW, UK Reference Type: Journal Article Record Number: 204 Author: Chan, Hai; Yakunin, A. F.; Gogotov, I. N. Year: 1988 Title: The effect of different bound nitrogen forms on the growth of some cyanobacteria isolated from the soil of Vietnam rice fields and on their nitrogenase activity Journal: Mikrobiologiya Volume: 57 Issue: 6 Pages: 972-6 Accession Number: AN 1989:91892 Keywords: Anabaena; Cyanobacteria; Gloeotrichia raciborskii; Nostoc (nitrogenase and heterocyst formation in, ammonium and nitrate and urea effect on); Nitrogen fixation (of cyanobacteria, ammonium and nitrate and urea effect on); Cyst (hetero-, of cyanobacteria, ammonium and nitrate and urea effect on) cyanobacteria nitrogenase heterocyst ammonium nitrate urea Abstract: The rate of growth, the content of heterocysts and the activity of nitrogenase in the cyanobacteria Anabaena cylindrica, A. sphaerica, Gloetrichia raciborskii, Nostoc calcicola and N. muscorum isolated from the soil of Vietnam rice fields and growing in the presence of N2 decreased when different forms of bound nitrogen (NH4+, NO3-, urea) were added to the medium (<1.0 mM). The presence of low ammonium concns. (<0.1 mM) in the medium did not stimulate the nitrogenase activity of these cyanobacteria. They released considerable quantities of fixed N2 in the form of ammonium into the medium in the presence of L-methionine-DL-sulfoximine, a glutamine synthetase inhibitor. The frequency of heterocyst formation did not correlate with the level of nitrogenase activity. G. raciborskii nitrogenase was most resistant to the repressing action of the bound nitrogen forms. [on SciFinder (R)] Notes: CAN 110:91892 10-3
Microbial Biochemistry Inst. Pochvoved. Fotosint.,Pushchino,USSR. Journal 0026-3656 written in Russian. 57-13-6 (Urea); 14797-55-8 (Nitrate); 14798-03-9 (Ammonium) Role: BIOL (Biological study) (heterocyst formation and nitrogenase in cyanobacteria response to); 7727-37-9 Role: BIOL (Biological study) (nitrogen fixation, of cyanobacteria, ammonium and nitrate and urea effect on); 9013-04-1 (Nitrogenase) Role: BIOL (Biological study) (of cyanobacteria, ammonium and nitrate and urea effect on) Reference Type: Journal Article Record Number: 205 Author: Bisoyi, R. N.; Singh, P. K. Year: 1988 Title: Effect of phosphorus fertilization on blue-green algal inoculum production and nitrogen yield under field conditions Journal: Biology and Fertility of Soils Volume: 5 Issue: 4 Pages: 338-43 Accession Number: AN 1988:203808 Keywords: Aphanothece; Aulosira; Cyanobacteria; Gloeotrichia (growth and nitrogen yield of, in fallow paddy fields, phosphorus fertilization effect on); Fertilizers Role: BIOL (Biological study) (superphosphate, cyanobacterial growth and nitrogen yield response to, in fallow paddy fields) cyanobacteria paddy phosphorus fertilizer; nitrogen cyanobacteria paddy phosphorus fertilizer Abstract: Expts. were conducted to assess the effects of the application of P on growth and N yield of inoculated and indigenous blue-green algae (BGA) in fallow paddy fields. Addn. of 17.4 kg P ha-1 as single superphosphate in split applications led to the highest BGA biomass and N yield, 162 kg dry wt. ha-1 and 6 kg N ha-1 per 15 days, resp. When inoculum of Aulosira spp., Aphanothece spp., Gloeotrichia spp. were compared sep., Gloeotrichia spp. grew faster but Aulosira spp. fixed more N. The growth rate and N yield of Aulosira spp. decreased with high P applications, although growth continued until the application of 34.8 kg P ha-1. The effects of P on inoculum prodn. by local species compared with those collected from other states showed the superiority of the local culture. Applications of P also enhanced the growth and N yield of indigenous BGA, with Wollea spp. showing the best results. [on SciFinder (R)] Notes: CAN 108:203808 19-3
Fertilizers, Soils, and Plant Nutrition Lab. Blue-Green Algae,Cent. Rice Res. Inst.,Cuttack,India. Journal 0178-2762 written in English. 7727-37-9 (Nitrogen) Role: BIOL (Biological study) (cyanobacteria yield of, in fallow paddy fields, phosphorus fertilization effect on); 7727-37-9 Role: AGR (Agricultural use), BIOL (Biological study), USES (Uses) (fertilizers, superphosphate, cyanobacterial growth and nitrogen yield response to, in fallow paddy fields) Reference Type: Journal Article Record Number: 206 Author: Aziz, A.; Whitton, B. A. Year: 1988 Title: Influence of light flux on nitrogenase activity of the deepwater rice-field cyanobacterium (blue-green alga) Gloeotrichia pisum in field and laboratory Journal: Microbios Volume: 53 Issue: 214 Pages: 7-19 Accession Number: AN 1988:164527 Keywords: Gloeotrichia pisum (nitrogenase of, light regulation of); Microorganism growth (of Gloeotrichia pisum, nitrogenase regulation by light in relation to); Light (on nitrogenase of Gloeotrichia pisum) Gloeotrichia nitrogenase light Abstract: Ests. of nitrogenase activity (using the acetylene redn. assay technique) were made on colonies of G. pisum in a deepwater rice-field in Bangladesh, where this species is often the dominant alga, and on a clonal axenic lab. isolate. The study focused on the influence of light flux, because rapid and frequent changes are a feature of the light climate during the monsoon season. The response of nitrogenase to changes in light flux was quite rapid in the field and the lab. During one field study over a 24-h period lacking any long overcast period, only 3.7% of the total nitrogenase activity took place during the night. In batch culture, higher nitrogenase activity (per unit time) occurred for a period of about 12 h after a culture, which had been left in the dark for 12 h and had been re-illuminated, than the max. activity found under continuous illumination. The increase reached a max. of .apprx.100% after 3.5 h, and by 12 h this increased activity had made good 80% of the total activity lost by incubating the culture in darkness rather than light. [on SciFinder (R)] Notes: CAN 108:164527 10-2
Microbial Biochemistry Dep. Bot.,Univ. Durham,Durham,UK. Journal 0026-2633 written in English. 9013-04-1 (Nitrogenase) Role: PROC (Process) (of Gloeotrichia pisum, light regulation of) Reference Type: Journal Article Record Number: 207 Author: Aziz, A.; Whitton, B. A. Year: 1987 Title: Morphogenesis of Blue-Green-Algae .1. Filament Development in Gloeotrichia Journal: Bangladesh Journal of Botany Volume: 16 Issue: 1 Pages: 69-81 Date: Jun Accession Number: ISI:A1987H908900008 Notes: English URL: Author Address: AZIZ, A, UNIV DHAKA,DEPT BOT,DHAKA,BANGLADESH. Reference Type: Journal Article Record Number: 209 Author: Wyman, M.; Fay, P. Year: 1986 Title: Interaction between Light Quality and Nitrogen Availability in the Differentiation of Akinetes in the Planktonic Cyanobacterium Gloeotrichia-Echinulata Journal: British Phycological Journal Volume: 21 Issue: 2 Pages: 147-153 Date: Jun Accession Number: ISI:A1986C739400003 Notes: Cited References: ALLEN MM, 1969, ARCH MIKROBIOL, V69, P114 BENNETT A, 1973, J CELL BIOL, V58, P419 CARR NG, 1979, DEV BIOL PROKARYOTES, P167 COBB HD, 1964, AM J BOT, V51, P753 FAY P, 1969, J EXP BOT, V20, P100 FAY P, 1970, BIOCHIM BIOPHYS ACTA, V216, P353 FAY P, 1984, BRIT PHYCOL J, V19, P163 FOGG GE, 1960, P R SOC LONDON B, V153, P111 FOGG GE, 1973, BLUE GREEN ALGAE HIROSAWA T, 1979, J GEN MICROBIOL, V114, P423 LAU RH, 1977, J BACTERIOL, V132, P771 NICHOLS JM, 1980, ARCH MICROBIOL, V127, P67 ROELOFS TD, 1970, LIMNOL OCEANOGR, V15, P224 ROTHER JA, 1977, P ROY SOC LOND B BIO, V196, P317 ROTHER JA, 1979, BRIT PHYCOL J, V14, P59 SIMON RD, 1977, ARCH MICROBIOL, V111, P283 SMITH RV, 1974, BRIT PHYCOL J, V9, P239 SUTHERLAND JM, 1979, J GEN MICROBIOL, V115, P273 TALLING JF, 1961, PRIMARY PRODUCTIVITY, P175 TALLING JF, 1971, MITT INT VEREIN THEO, V19, P214 WALSBY AE, 1971, P ROY SOC B, V178, P301 WOLK CP, 1965, DEV BIOL, V12, P15 YAMANAKA G, 1980, ARCH MICROBIOL, V124, P39 English
light intensity; wavelength; nutrient deficiency; interactions; akinetes; Gloeotrichia echinulata morphogenesis; association; akinete formation; akinetes; cell differentiation; nitrogen; resting stages; interactions Freshwater Q1 01422 Environmental effects; K 03001 Algae; D 04620 Microorganisms Abstract: Akinete differentiation in Gloeotrichia echinulata is stimulated in batch cultures in the absence of a source of combined nitrogen. When inorganic nitrogen is available in the medium, the logarithmic phase of growth is prolonged and akinetes form at a higher culture density than when dinitrogen is supplied as the sole source of this element. Light quality also influences the timing of akinete differentiation; akinetes are formed at a lower culture density in green light in comparison to white light, particularly in the absence of combined nitrogen. These observations are interpreted in terms of the light energy requirement for the maintenance of growth and the spectral requirements for nitrogen fixation in cultures free of combined nitrogen. The data are related to the influence of variations in underwater light climate on the development of akinetes in natural populations of planktonic blue-green algae. Notes: 1986 English
Journal Article Author Address: Dep. Biol. Sci., Univ. Warwick, Coventry CV4 7AL, UK Reference Type: Journal Article Record Number: 101 Author: Wyman, M.; Fay, P. Year: 1986 Title: Underwater Light Climate and the Growth and Pigmentation of Planktonic Blue-Green Algae (Cyanobacteria) I. The Influence of Light Quantity Journal: Proceedings of the Royal Society of London. Series B, Biological Sciences Volume: 227 Issue: 1248 Pages: 367-380 Date: Apr. 22 Abstract: The influence of variation in light quantity on the growth and pigmentation of eight strains of planktonic blue-green algae has been investigated under defined laboratory conditions. In light-limited cultures the relative concentrations of chlorophyll and phycobiliproteins per cell decline at a similar rate with increasing irradiance. Once maximum growth rate is reached, however, exposure to higher photon flux densities results in a further decline in light-harvesting capacity per cell and also in a reduction in the light absorption bandwidth owing to a preferential decrease in phycobiliprotein synthesis. Quantitative and qualitative changes in the net rates of pigment synthesis at high irradiance appear to be part of an overall mechanism that serves to maintain maximum growth rate under conditions that might otherwise favour chlorophyll photooxidation. At irradiances below those required for maximum growth rate, the net rates of chlorophyll and phycobiliprotein synthesis decline as growth becomes progressively light-limited. Such limitations of pigment synthesis appear to be imposed by genotypic constraints on the maximum cell density and on the size of photosynthetic units rather than by either light or nutrient limitation of chlorophyll and phycobiliprotein synthesis. Notes: FLA 00804649
The Royal Society Copyright 1986 The Royal Society URL: http://links.jstor.org/sici?sici=0080-4649%2819860422%29227%3A1248%3C367%3AULCATG%3E2.0.CO%3B2-J Reference Type: Journal Article Record Number: 6 Author: Wyman, M.; Fay, P. Year: 1986 Title: Underwater Light Climate and the Growth and Pigmentation of Planktonic Blue-Green Algae (Cyanobacteria) II. The Influence of Light Quality Journal: Proceedings of the Royal Society of London. Series B, Biological Sciences Volume: 227 Issue: 1248 Pages: 381-393 Date: Apr. 22 Abstract: The influence of light quality on the growth and chlorophyll and phycobiliprotein composition of eight strains of planktonic blue-green algae has been investigated. Growth rate in chromatic (red, green, blue) light (12 $\mu $E m$^{-2}$ s$^{-1}$) (1 $\mu $E = 6 $\times $ 10$^{17}$ photons) is a general function of the light absorption capacity of the cell. In all strains examined growth rate is enhanced in red light, and in Oscillatoria redekei and Gloeotrichia echinulata CC1 it exceeds the maximum growth rate possible in white light of a higher photon flux density under otherwise similar experimental conditions. In green light the growth rate of six phycocyanin-rich strains is approximately 60-75% of that in white light (12 $\mu $E m$^{-2}$ s$^{-1}$), but growth rate is enhanced in O. agardhii 7821 and G. echinulata CC1, which synthesize the green-light-absorbing phycobiliprotein, phycoerythrin. With the exception of these two phycoerythrin-producing strains, incubation in blue light results in a pronounced reduction in growth rate, which in the majority of strains is associated with a specific decline in cell chlorophyll concentrations. In all strains cell chlorophyll and phycobiliprotein content is similar in both white and green light. Associated with the enhancement of growth rate in red light there is a general decline in cell pigment concentrations. An increase in the cell chlorophyll: phycobiliprotein ratio also occurs in a number of strains in red light. This qualitative variation in pigmentation occurs where growth rate is at or near its maximum rate and in Gloeotrichia echinulata CC1 is the result of a specific reduction in the rate of phycoerythrin synthesis. In contrast to other blue-green algae capable of chromatic adaptation, the modulation of phycoerythrin synthesis in this strain is influenced considerably by the photon flux density of red light. Notes: FLA 00804649
The Royal Society latex
Copyright 1986 The Royal Society URL: http://links.jstor.org/sici?sici=0080-4649%2819860422%29227%3A1248%3C381%3AULCATG%3E2.0.CO%3B2-J Reference Type: Journal Article Record Number: 210 Author: Whitton, B. A.; Catling, H. D. Year: 1986 Title: Algal ecology of deepwater rice-fields in Thailand Journal: Archiv fur Hydrobiologie. Stuttgart Volume: 105 Issue: 3 Pages: 289-297 Alternate Journal: Arch. Hydrobiol. Accession Number: 1425077 Keywords: rice fields; check lists; epiphytes; biomass; physicochemical properties; Bacillariophyceae; Chlorophyta; Anabaena; Nostoc; Aulosira; Bulbochaete; Oedogonium; Azolla pinnata; Thailand Gloeotricha Freshwater Q1 01464 Other aquatic communities Abstract: An account is given of changes in water chemistry and algal vegeation in one Thailand deepwater rice field (Huntra) through the 1983-1984 flood season, together with comparative observations at this and two other sites in September 1982. The Huntra field had standing water for almost six months (July-January), reaching a maximum depth of 175 cm in late October. The attached algal vegetation was dominated by heterocystous species of blue-green algae throughout the period, suggesting the importance of nitrogen fixation; the most abundant genera were Nostoc , Gloeotrichia, Aulosira and Anabaena (in decreasing order). Green algae were the next most important phylum, with Bulbochaete and Oedogonium predominant. Diatoms showed an obvious increase in abundance in October. Notes: 1986 0003-9136 English Journal Article Author Address: Univ. Durham, Dep. Bot., Durham DH1 3LE, UK Reference Type: Journal Article Record Number: 2 Author: Mishra, A. K.; Tiwari, D. N. Year: 1986 Title: Mutagenesis and Isolation of Morphological Mutants Impaired in Nitrogen-Fixing Capacity from a Cynaobacterium Gloeotrichia ghosei Journal: New Phytologist Volume: 103 Issue: 1 Pages: 69-77 Date: May Keywords: Cyanobacteria, Gloeotrichia ghosei, N-Methyl-N'-Nitro-N-Nitrosoguanidine, Ultra-Violet Irradiation, Nif$^-$ Mutant, Heterocyst, Nitrogen Fixation Abstract: Ultraviolet (u.v.) irradiation and treatment with nitrosoguanidine (NTG) were used to produce mutants of the cyanobacterium Gloeotrichia ghosei. Three non-nitrogen fixing (nif$^-$) mutants, which were also altered in their morphological characteristics, were isolated. They were designated as fil$^1$ het$^+$, fil$^1$ het$^++$ and pol$^-$ het$^-$. The first two mutants formed heterocysts and exhibited polarity while the third (i.e. pol$^-$ het$^-$) had neither heterocysts nor polarity. The fil$^1$ het$^+$ strain had a developmental pattern similar to that of the parent alga, but with longer filaments, while the fil$^1$ het$^{++}$ strain formed chains of intercalary heterocysts and the long filaments showed evidence of intercalary polarity. The isolation of these mutants demonstrates the feasibility of using Gloeotrichia to relate developmental morphology to nitrogen fixation and heterocyst differentiation in a filamentous cyanobacterium. Notes: FLA 0028646x
Blackwell Science Publications latex
Copyright 1986 New Phytologist Trust URL: http://links.jstor.org/sici?sici=0028-646X%28198605%29103%3A1%3C69%3AMAIOMM%3E2.0.CO%3B2-T Reference Type: Journal Article Record Number: 211 Author: Tiwari, D. N.; Singh, L. J.; Mishra, A. K. Year: 1985 Title: Evidence for a reversible action of methionine sulfoximine during growth of the cyanobacterium, Gloeotrichia ghosei singh Journal: New Phytologist Volume: 99 Issue: 3 Pages: 361-5 Accession Number: AN 1985:182332 Keywords: Amino acids Role: BIOL (Biological study) (cyanobacterium growth inhibition by methionine sulfoximine reversal by); Gloeotrichia ghosei (methionine sulfoximine inhibition of growth and nitrogen uptake by, reversibility of) methionine sulfoximine Gloeotrichia nitrogen growth Abstract: Inhibition by L-methionine-DL-sulfoximine (MSX) of growth, NO3- and NH4+ uptake in G. ghosei disappeared after a lag period of 6-8 days. The ability of the organism to resume growth or N uptake following a lag period was not due to decay of the inhibitor. Amino acids such as glutamine or methionine, which function as N sources, abolished the inhibitory action of MSX. [on SciFinder (R)] Notes: CAN 102:182332 10-5
Microbial Biochemistry Cent. Adv. Study Bot.,Banaras Hindu Univ.,Varanasi,India. Journal 0028-646X written in English. 15985-39-4 Role: BIOL (Biological study) (cyanobacterium growth and nitrogen uptake inhibition by, reversibility of); 56-85-9; 63-68-3 Role: BIOL (Biological study) (cyanobacterium growth inhibition by methionine sulfoximine reversal by); 52-90-4; 56-45-1; 56-84-8; 63-91-2; 71-00-1; 73-22-3 Role: BIOL (Biological study) (cyanobacterium growth response to); 14797-55-8; 14798-03-9 Role: BIOL (Biological study) (uptake of, by cyanobacterium, methionine sulfoximine reversible action in relation to) 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:
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