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Titolo:
EFFECTS OF ENDOTHALL AND OTHER AQUATIC HERBICIDES ON CHLOROPHYLL FLUORESCENCE, RESPIRATION AND CELLULAR INTEGRITY
Autore:
MACDONALD GE; SKILLING DG; BEWICK TA;
Indirizzi:
UNIV FLORIDA,DEPT AGRON GAINESVILLE FL 32611 UNIV FLORIDA,DEPT VEGETABLE CROPS GAINESVILLE FL 32611
Titolo Testata:
Journal of aquatic plant management
, volume: 31, anno: 1993,
pagine: 50 - 55
SICI:
0146-6623(1993)31:<50:EOEAOA>2.0.ZU;2-9
Fonte:
ISI
Lingua:
ENG
Keywords:
DINOSEB; DIQUAT; SIMAZINE; GRAMICIDIN; CONDUCTIVITY; OXYGEN RADICAL; MODE-OF-ACTION; CUCUMBER;
Tipo documento:
Article
Natura:
Periodico
Settore Disciplinare:
Science Citation Index Expanded
Science Citation Index Expanded
Citazioni:
27
Recensione:
Indirizzi per estratti:
Citazione:
G.E. Macdonald et al., "EFFECTS OF ENDOTHALL AND OTHER AQUATIC HERBICIDES ON CHLOROPHYLL FLUORESCENCE, RESPIRATION AND CELLULAR INTEGRITY", Journal of aquatic plant management, 31, 1993, pp. 50-55

Abstract

Part of the mode of action of several aquatic herbicides is cellular disruption which can be caused by the generation of oxygen radicals orloss of adenosine triphosphate (ATP) needed to maintain cellular integrity. In an attempt to distinguish between the varying mechanisms by which certain compounds cause cellular disruption, ion leakage (light and dark regimes), chlorophyll fluorescence, and oxygen consumption (anormal consequence of respiration) were monitored over time from leaftissue exposed to endothall, simazine, dinoseb, diquat and gramicidin. All compounds, except simazine, caused high ion leakage in both light and dark. Diquat caused more rapid leakage in light, while endothalland gramicidin caused more rapid leakage in the dark. Diquat, dinoseband simazine increased chlorophyll fluorescence, but endothall and gramicidin did not. Oxygen consumption was stimulated by gramicidin and diquat but inhibited by endothall and dinoseb. Comparing the effects of compounds with known mechanisms-of-actions on ion leakage, chlorophyll fluorescence and oxygen consumption suggest that endothall acts to inhibit respiration.

ASDD Area Sistemi Dipartimentali e Documentali, Università di Bologna, Catalogo delle riviste ed altri periodici
Documento generato il 27/11/14 alle ore 21:27:58