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Record Number: 113 Author: Karlsson-Elfgren, I.; Rengefors, K.; Gustafsson, S. Year: 2004 Title: Factors regulating recruitment from the sediment to the water column in the bloom-forming cyanobacterium Gloeotrichia echinulata Journal: Freshwater Biology Volume: 49 Issue: 3 Pages: 265-273 Date: Mar Accession Number: ISI:000188989600004 Keywords: akinete; germination; Gloeotrichia echinulata; migration; recruitment; resting stages blue-green-algae; planktonic cyanophyte; lake erken; populations; germination; phytoplankton; phosphorus; migration; dynamics; growth Abstract: 1. The influence of light, temperature, sediment mixing and sediment origin (water depth) on the recruitment of the cyanobacterium Gloeotrichia echinulata was examined in the laboratory. 2. Light and temperature were the most important factors initiating germination in G. echinulata. 3. The extent of germination (recruited biovolume) was mainly regulated by temperature and sediment mixing. Furthermore, sediment mixing significantly enhanced the frequency of observed heterocysts and colonies. 4. Despite the fact that the deep and shallow sediments contained a similar number of akinete colonies, the highest recruitment occurred from shallow sediments, indicating that akinetes from shallow sediments have a higher viability than those from deeper parts of the lake. 5. Our results support the hypothesis that shallow sediments are more important than profundal sediments for the recruitment of G. echinulata to the pelagic zone. Notes: Cited References: ANDERSON DM, 1982, LIMNOL OCEANOGR, V27, P757 BAKER PD, 1999, MAR FRESHWATER RES, V50, P265 BARBIERO RP, 1992, FRESHWATER BIOL, V27, P249 BARBIERO RP, 1993, ARCH HYDROBIOL, V127, P87 BARBIERO RP, 1994, J PLANKTON RES, V16, P1581 BINDER BJ, 1986, NATURE, V322, P659 BRAUNE W, 1979, ARCH MICROBIOL, V122, P289 BRUNBERG AK, 2003, J PHYCOL, V39, P58 FORSELL L, 1995, MAR FRESHWATER RES, V46, P287 FORSELL L, 1998, ERGEB LIMNOL, V51, P21 HAKANSON L, 1978, SCRIPTA LIMNOLOGICA, V14, P23 HANSSON LA, 1994, CAN J FISH AQUAT SCI, V51, P2825 HANSSON LA, 1996, P ROY SOC LOND B BIO, V263, P1241 HEAD RM, 1998, VERHANDLUNGEN INT VE, V26, P1711 HEAD RM, 1999, FRESHWATER BIOL, V41, P759 HILLEBRAND H, 1999, J PHYCOL, V35, P403 KEARNS CM, 1996, HYDROBIOLOGIA, V332, P63 KEZHI B, 1985, HYDROBIOLOGIA, V123, P89 KOMAREK J, 1989, ARCH HYDROBIOLOGIE S, V82, P289 KONOPKA A, 1978, APPL ENVIRON MICROB, V42, P102 KUMAGAI M, 1988, JPN J LIMNOL, V49, P185 LUND JWG, 1954, J ECOL, V42, P151 MARCUS NH, 1998, LIMNOL OCEANOGR, V43, P763 MCQUOID MR, 1995, J PHYCOL, V31, P44 NAUWERCK A, 1963, THESIS UPPSALA U UPP NICHOLS JM, 1982, BIOL CYANOBACTERIA, P387 PETTERSSON K, 1993, HYDROBIOLOGIA, V253, P123 RAI AN, 1985, J PLANT SCI RES, V1, P1 RENGEFORS K, 1998, J PHYCOL, V34, P568 REYNOLDS CS, 1972, FRESHWATER BIOL, V2, P87 ROBARTS RD, 1987, NEW ZEAL J MAR FRESH, V21, P391 ROELOFS TD, 1970, LIMNOL OCEANOGR, V15, P224 SANDBERG G, 1969, ARCH HYDROBIOLOGIE S, V35, P119 SCHINDLER DE, 2002, OIKOS, V98, P177 SKUJA H, 1948, SYMBOL BOT UPSAL, V9, P3 SODERBACK B, 1992, ANN ZOOL FENN, V29, P253 STAHLDELBANCO A, 2002, LIMNOL OCEANOGR, V47, P1836 TRIMBEE AM, 1984, J PLANKTON RES, V6, P897 VANDOK W, 1997, J PHYCOL, V33, P12 WESENBERGLUND C, 1904, DANSK FERSKVANDS BIO, V5 WEYHENMEYER G, 1999, SCRIPTA LIMNOLOGICA, V16, P51 WYMAN M, 1986, P ROY SOC LOND B BIO, V227, P381 English
URL: Author Address: Uppsala Univ, Dept Limnol, Evolutionary Biol Ctr, S-75236 Uppsala, Sweden. Lund Univ, Dept Ecol, S-22362 Lund, Sweden. Karlsson-Elfgren, I, Uppsala Univ, Dept Limnol, Evolutionary Biol Ctr, Norbyvagen 22, S-75236 Uppsala, Sweden. irene.karlsson@ebc.uu.se
recruitment planktonic cyanophyte; algal recruitment; life strategy; cyanobacterium; water; phytoplankton; populations; additions; migration; sediment
AHLKRONA M, 2000, SCRIPTA LIMNOL UPS B, V16, P1 BARBIERO RP, 1992, FRESHWATER BIOL, V27, P249 BARBIERO RP, 1993, ARCH HYDROBIOL, V127, P87 BLOMQVIST P, 2001, ENVIRON ECOL STAT, V8, P121 BRUNBERG AK, 2003, J PHYCOL, V39, P58 CHANG TP, 1983, ARCH HYDROBIOL, V97, P320 CMIECH HA, 1984, BRIT PHYCOL J, V19, P259 FERLAND C, 1997, STELLA SOFTWARE TECH FORSELL L, 1993, SCRIPTA LIMNOL UPS B, V7, P105 FORSELL L, 1995, MAR FRESHWATER RES, V46, P287 FORSELL L, 1998, ERGEB LIMNOL, V51, P21 HAKANSSON L, 1978, SCRIPTA LIMNOL UPSAL, V8, P1 HANSSON LA, 1994, CAN J FISH AQUAT SCI, V51, P2825 HANSSON LA, 1995, J PHYCOL, V31, P540 HEAD RM, 1998, VERHANDLUNGEN INT VE, V26, P1711 HEAD RM, 1999, FRESHWATER BIOL, V41, P759 HYENSTRAND P, 2000, J PLANKTON RES, V22, P1113 HYENSTRAND P, 2001, FRESHWATER BIOL, V46, P735 ISTVANOVICS V, 1993, J PLANKTON RES, V15, P531 KOMAREK J, 1989, ARCH HYDROBIOLOGIE S, V82, P289 NAUWERCK A, 1963, THESIS UPPSALA U SWE REYNOLDS CS, 1972, FRESHWATER BIOL, V2, P87 REYNOLDS CS, 1981, PHILOS T ROY SOC B, V293, P419 RODHE W, 1948, THESIS UPPSALA U SWE RODHE W, 1958, PERSPECTIVES MARINE, P299 ROELOFS TD, 1970, LIMNOL OCEANOGR, V15, P224 SKUJA HL, 1948, SYMBOLICA BOT UPSALI, V3, P1 TRIMBEE AM, 1984, J PLANKTON RES, V6, P897 TYMOWSKI RG, 2000, ARCH HYDROBIOL, V148, P321 WEYHENMEYER G, 1999, SCR LIMNOL UPSALIE B, V16, P1 English
URL: Author Address: Uppsala Univ, Dept Limnol, Evolutionary Biol Ctr, SE-75236 Uppsala, Sweden. Erken Lab, SE-76173 Norrtalje, Sweden. Karlsson-Elfgren, I, Uppsala Univ, Dept Limnol, Evolutionary Biol Ctr, Norbyvagen 20, SE-75236 Uppsala, Sweden. Reference Type: Journal Article Record Number: 122 Author: Karlsson, I. Year: 2003 Title: Benthic growth of Gloeotrichia echinulata Cyanobacteria Journal: Hydrobiologia Volume: 506 Issue: 1-3 Pages: 189-193 Date: Nov 15 Accession Number: ISI:000188455600025 Keywords: recruitment; benthic growth; migration; akinete; germination gloetrichia-echinulata; planktonic cyanophyte; lake erken; phosphorus Abstract: Gloeotrichia echinulata is an akinete forming cyanobacterium with both a pelagic and a benthic phase. After germination of the akinete there is a short phase of growth on the sediment before the filaments develop gas vacuoles and migrate up into the water. It has been indicated that during the time of growth on the sediment surface the germlings take up nutrients. Those nutrients would be used during the pelagic phase as the pelagic colonies do not have a very efficient nutrient uptake. To test the length of the initial growth period 'akinete colonies' were picked out of sediment samples from Lake Erken, Sweden, and placed on a thin layer of sediment in wellplates (Nunclon multidish, 48 wells) in an incubator with 17degreesC and a light:dark cycle of 16:8 h. The plates were then studied under a stereo microscope and pictures were taken one or two times per day for 20 days. Germination occurred in one third of the wells and the growth was recorded. The germlings formed bundles on the surface of the old akinete colony during the experiment. Several bundles were found on the same akinete colony. In the migration traps colonies and filament bundles were found. The morphology of filament bundles found in the migration traps was similar to the filament bundles found in the germination experiment which had reached a stage of development where they would soon be considered colonies. Notes: Cited References: BARBIERO RP, 1992, FRESHWATER BIOL, V27, P249 BARBIERO RP, 1993, ARCH HYDROBIOL, V127, P87 CHANG TP, 1979, BRIT PHYCOL J, V14, P207 FORSELL L, 1995, MAR FRESHWATER RES, V46, P287 ISTVANOVICS V, 1993, J PLANKTON RES, V15, P531 KARLSSON I, 1999, ALGOLOGICAL STUDIES, V94, P175 KOMAREK J, 1989, ARCH HYDROBIOLOGIE S, V82, P289 PETTERSSON K, 1993, HYDROBIOLOGIA, V253, P123 RODHE W, 1948, ENV REQUIREMENTS FRE ROELOFS TD, 1970, LIMNOL OCEANOGR, V15, P224 WESENBERGLUND C, 2004, STUDIER DANSKE SOERS, V1 WEYHENMEYER G, 1999, SCRIPTA LIMNOLOGIC B, V16 English
URL: Author Address: Uppsala Univ, Limnol Dept, S-75236 Uppsala, Sweden. Karlsson, I, Uppsala Univ, Limnol Dept, Norbyvagen 20, S-75236 Uppsala, Sweden. Irene.Karlsson@bc.uu.se
cyanobacteria response iron boron addn lake water; Gloeotrichia echinulata growth response nutrient addn Lake Erken Sweden Abstract: This study considered whether the availability of Fe and B has an important effect on development of the cyanobacterium, Gloeotrichia echinulata, in Lake Erken, Sweden. In in-situ expts., PO43- and NO3- were added to all enclosures, but pelagic colonies of G. echinulata only increased in abundance in enclosures to which Fe was also added. An even greater increase in abundance of G. echinulata occurred in enclosures in which PO43-, NO3-, and Fe addns. were complemented by adding B. B addns., together with PO43- and NO3- but without Fe, did not stimulate G. echinulata growth. [on SciFinder (R)] Notes: CAN 135:261747 61-1
Water Department of Limnology, Institute of Evolutionary Biology,Uppsala University,Uppsala,Swed. Journal 0046-5070 written in English. 479-61-8 (Chlorophyll a) Role: BOC (Biological occurrence), BSU (Biological study, unclassified), OCU (Occurrence, unclassified), BIOL (Biological study), OCCU (Occurrence) (cyanobacterium, Gloeotrichia echinulata, response to summer addns. of phosphates, nitrates, and/or iron and boron to Lake Erken, Sweden); 7439-89-6 (Iron); 7440-42-8 (Boron) Role: FFD (Food or feed use), MOA (Modifier or additive use), BIOL (Biological study), USES (Uses) (cyanobacterium, Gloeotrichia echinulata, response to summer addns. of phosphates, nitrates, and/or iron and boron to Lake Erken, Sweden); 12408-02-5 (Hydrogen ion) Role: OCU (Occurrence, unclassified), OCCU (Occurrence) (cyanobacterium, Gloeotrichia echinulata, response to summer addns. of phosphates, nitrates, and/or iron and boron to Lake Erken, Sweden) Reference Type: Journal Article Record Number: 141 Author: Tymowski, Raphael G.; Duthie, Hamish C. Year: 2000 Title: Life strategy and phosphorus relations of the cyanobacterium Gloeotrichia echinulata in an oligotrophic precambrian shield lake Journal: Archiv fuer Hydrobiologie Volume: 148 Issue: 3 Pages: 321-332 Accession Number: AN 2000:492902 Keywords: Benthic organisms; Cyanobacteria; Gloeotrichia echinulata; Lake sediments; Lake waters; Plankton (life strategy and phosphorus relations of cyanobacterium Gloeotrichia echinulata in oligotrophic precambrian shield lake) cyanobacterium growth phosphorus uptake oligotrophic precambrian shield lake; phosphorus uptake growth Gloeotrichia echinulatan oligotrophic precambrian shield lake Abstract: Expts. to measure phosphorus uptake by the cyanobacterium Gloeotrichia echinulata (J. E. Smith) Richter from lake sediments and from epilimnetic water show that phosphorus accumulated from the sediments by benthic colonies plays an important role in the development of planktonic populations, whereas uptake from epilimnetic water by vegetative colonies is insignificant. During the spring and summer of 1996, the cellular phosphorus quota of both benthic and epilimnetic Gloeotrichia colonies was monitored in the oligotrophic Peninsula Lake, central Ontario, Canada, in order to detect signs of luxury uptake and subsequent utilization during growth. Assays were also used to measure the rate of phosphorus uptake from the sediment and from lake water. G. echinulata, which overwinters in the form of the benthic akinete packets, is capable of obtaining phosphorus directly from the sediments following germination in early summer, and subsequent growth in the epilimnion is based almost entirely on accumulated reserves. [on SciFinder (R)] Notes: CAN 133:212535 61-1
Water Baruch Marine Laboratory,Georgetown,SC,USA. Journal 0003-9136 written in English. 7723-14-0 (Phosphorus) Role: BPR (Biological process), BSU (Biological study, unclassified), BIOL (Biological study), PROC (Process) (life strategy and phosphorus relations of cyanobacterium Gloeotrichia echinulata in oligotrophic precambrian shield lake) Reference Type: Book Record Number: 148 Author: Karlsson, I. Year: 1999 Title: On the germination of the akinete-forming cyanobacterium Gloeotrichia echinulata, in Lake Erken, Sweden Series Editor: Komarek, J.; Eloranta, P.; Lhotsky, O. City: Stuttgart (FRG) Publisher: Schweizerbart'sche Verlagsbuchhandlung Number of Pages: 175-180. [Arch. Hydrobiol. (Suppl.) (Algol. Stud.)]. 1999. ISBN: 0342-1120 3510660153 Accession Number: 4728514 Keywords: Germination; Colonies; Gloeotrichia echinulata; Sweden, Erken L. Freshwater Q1 01204 Reproduction and development
Cyanobacteria/Cyanophyta, morphology, taxonomy, ecology. Proceedings of the 14th Symposium of the International Association for Cyanophyte Research (IAC). Vol. 129 Referred to also as Algological Studies 94. English
Book Monograph; Conference Author Address: Uppsala University, Dep. of Limnology Norbyvaegen 20, S-75236 Uppsala Sweden, [mailto:irene.karlsson@limno.uu.se] Reference Type: Journal Article Record Number: 158 Author: Pitois, S. G.; Jackson, M. H.; Wood, B. J. B. Year: 1997 Title: Summer bloom of Gloeotrichia echinulata and Aphanizomenon flos-aquae and phosphorus levels in Antermony Loch, central Scotland Journal: International Journal of Environmental Health Research Volume: 7 Issue: 2 Pages: 131-140 Accession Number: AN 1997:471997 Keywords: Algae; Aphanizomenon flos-aquae; Gloeotrichia echinulata; Reservoir sediments; Water pollution (summer bloom of Gloeotrichia echinulata and Aphanizomenon flos-aquae and phosphorus levels in Antermony Loch, central Scotland); Nitrates; Nitrites Role: GOC (Geological or astronomical occurrence), POL (Pollutant), OCCU (Occurrence) (summer bloom of Gloeotrichia echinulata and Aphanizomenon flos-aquae and phosphorus levels in Antermony Loch, central Scotland) Gloeotrichia echinulata summer bloom; Aphanizomenon flos aquae summer bloom; bloom Gloeotrichia Aphanizomenon phosphorus Antermony Loch Abstract: Nutrient levels (P and N) were measured in a small reservoir in Scotland between Mar. 1994 and Oct. 1995. Algae species were identified. Dense blooms of Gloeotrichia echinulata have regularly occurred in late summer in the reservoir for many years, but it did not reach bloom proportions during the 1995 summer and seemed to have been replaced by Aphanizomenon. The bloom of the cyanobacterium Gloeotrichia echinulata that occurred in August 1994 was studied in relation to P levels present at the time in the water. Results show that the bloom developed after a slight increase in dissolved inorg. P; while the bloom was developing, particulate inorg. forms of P increased and were then replaced by particulate org. forms when the bloom reached its max. d. All P fractions started to decrease shortly before the bloom collapsed. There did not seem to be any change in the distribution of P between its different fractions, at least during the 1st 24 h after collection when the sample was kept in a refrigerator in the dark. We therefore conclude that Gloeotrichia echinulata was probably responsible for transferring P from the sediments up to the water column in Antermony. [on SciFinder (R)] Notes: CAN 127:126200 61-2
Water Environmental Health Division,University of Strathclyde,Glasgow,UK. Journal 0960-3123 written in English. 7664-41-7 (Ammonia); 7723-14-0 (Phosphorus); 7727-37-9 (Nitrogen) Role: GOC (Geological or astronomical occurrence), POL (Pollutant), OCCU (Occurrence) (summer bloom of Gloeotrichia echinulata and Aphanizomenon flos-aquae and phosphorus levels in Antermony Loch, central Scotland) Reference Type: Journal Article Record Number: 165 Author: Forsell, L.; Pettersson, K. Year: 1995 Title: On the seasonal migration of the cyanobacterium Gloeotrichia echinulata in Lake Erken, Sweden, and its influence on the pelagic population Journal: Marine & Freshwater Research Volume: 46 Issue: 1 Pages: 287-293 Alternate Journal: Mar. Freshwat. Res. Accession Number: 3815249 Keywords: phytoplankton; lake deposits; sediment-water exchanges; eutrophic lakes; phosphorus cycle; vertical migrations; Gloeotrichia echinulata Sweden, Erken L. Freshwater Q1 01421 Migrations and rhythms Abstract: The quantity and distribution of colonies of Gloeotrichia echinulata migrating from the sediments into the water column were studied in Lake Erken by the use of inverted traps. The epilimnetic population and the phosphorus status of the epilimnetic colonies were quantified. The numbers of colonies in the traps were greatest in the shallower areas. As the stratification became weaker and the epilimnetic population declined, the amount of colonies in all the traps increased markedly. Most of the colonies in the traps were due to redistribution within the water column. On the assumption that no epilimnetic uptake of phosphorus occurred in G. echinulata, the internal loading of P due to migrating colonies would be about 0.5 mg per sq m per day during July and August. The proportion of newly migrated colonies in the epilimnetic population was calculated to be about 50 percent for the period before the population maximum. The increasing P content of the colonies after the population maximum indicates that the migration continued even after this. Notes: 6. International Symposium. International Association for Sediment Water Sciences, Santa Barbara, CA (Australia) 1995
1323-1650 English
Journal Article; Conference Author Address: Uppsala Univ. Dep. of Limnol., S-761 73 Norrtalje, Sweden Reference Type: Journal Article Record Number: 166 Author: Aziz, A. Year: 1995 Title: Nitrogen-Fixation in Relation to the Metamorphosis of Gloeotrichia-Pisum D613 Journal: Bangladesh Journal of Botany Volume: 24 Issue: 1 Pages: 81-86 Date: Jun Accession Number: ISI:A1995RF31900013 Keywords: n-2-fixation; metamorphosis; gloeotrichia; culture Abstract: The changes of nitrogen fixation (ARA) were studied in relation to the metamorphosis of Gloeotrichia pisum D613 in batch culture. During metamorphosis, the alga passes through stages, like hormogonia, juvenile filaments, developing filaments and mature filaments. The relative occurrence of these stages varies with the age of cultures. Maximum ARA was observed ed after one day of growth under continuous light flux of 105 mu E m(-1) s(-1) and at a temperature of 32 degrees C. During this period juvenile filaments were abundant having a maximum heterocyst frequency and cultures had the lowest chi a: dry wt. ratio. Cells of juvenile filaments had no cyanophycin granules. It appeared that the juvenile filaments suffered nitrogen starvation, thus actively fixed nitrogen. Significance of this result in relation to rice cultivation and algalization has been discussed. 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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