Catalogo Articoli (Spogli Riviste)

OPAC HELP

Titolo:
PHYSIOLOGICAL AND BIOCHEMICAL RESPONSES OF NOSTOC LINCKIA TO COMBINEDEFFECTS OF ALUMINUM, FLUORIDE AND ACIDIFICATION
Autore:
RAI LC; HUSAINI Y; MALLICK N;
Indirizzi:
BANARAS HINDU UNIV,DEPT BOT,ALGAL BIOL LAB VARANASI 221005 UTTAR PRADESH INDIA
Titolo Testata:
Environmental and experimental botany
fascicolo: 1, volume: 36, anno: 1996,
pagine: 1 - 12
SICI:
0098-8472(1996)36:1<1:PABRON>2.0.ZU;2-2
Fonte:
ISI
Lingua:
ENG
Soggetto:
CYANOBACTERIUM ANABAENA-CYLINDRICA; PROTON-TRANSLOCATING ATPASES; GAMMA-PHOSPHATE; CARBON FIXATION; BARLEY ROOTS; TOXICITY; INHIBITION; STRESS; PHOTOSYNTHESIS; SCENEDESMUS;
Keywords:
NOSTOC LINCKIA; ALUMINUM; FLUOROALUMINATE; ATPASE; PSI; PSII; PHOTOSYNTHETIC ELECTRON TRANSPORT CHAIN;
Tipo documento:
Article
Natura:
Periodico
Settore Disciplinare:
Science Citation Index Expanded
Science Citation Index Expanded
Citazioni:
36
Recensione:
Indirizzi per estratti:
Citazione:
L.C. Rai et al., "PHYSIOLOGICAL AND BIOCHEMICAL RESPONSES OF NOSTOC LINCKIA TO COMBINEDEFFECTS OF ALUMINUM, FLUORIDE AND ACIDIFICATION", Environmental and experimental botany, 36(1), 1996, pp. 1-12

Abstract

The toxicities of NaF, AlCl3 and AlF3, separately or in combination (AlCl3+NaF), for growth, photosynthesis, electron transport, nitrogen and phosphorus metabolism and ATPase activity of Nostoc linckia were enhanced in the presence of AlCl3, especially at pH values of 6.0 or 4.5. Al uptake from the medium containing AlCl3 was influenced by the presence or absence of phosphate. Both photosystems (PSI and PSII) were highly susceptible to AlF4 followed by AlF3 and AlCl3 in effectiveness. IR spectra revealed the formation and existence of AlF4 at pH 6.0 and4.5 in the culture medium and in the algal cells. Fluoroaluminate toxicity seems to be due to a replacement of phosphate from the nucleotide binding site of ATPases, thereby arresting the release of ATP and the translocation of ions vital for cyanobacterial growth and metabolism.

ASDD Area Sistemi Dipartimentali e Documentali, Università di Bologna, Catalogo delle riviste ed altri periodici
Documento generato il 30/10/20 alle ore 18:45:49