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Titolo:
METABOLISM OF 4-NITROPHENOL IN SOYBEAN EXCISED LEAVES AND CELL-SUSPENSION CULTURES OF SOYBEAN AND WHEAT
Autore:
SCHMIDT B; RIVERO C; THIEDE B; SCHENK T;
Indirizzi:
RHEIN WESTFAL TH AACHEN,INST BIOL OKOL OKOTOXIKOL OKOCHEM 5,WORRINGERWEG 1 W-5100 AACHEN GERMANY
Titolo Testata:
Journal of plant physiology
fascicolo: 6, volume: 141, anno: 1993,
pagine: 641 - 646
SICI:
0176-1617(1993)141:6<641:MO4ISE>2.0.ZU;2-S
Fonte:
ISI
Lingua:
ENG
Soggetto:
PLANTS; GLUCOSIDE; ACID;
Keywords:
GLYCINE MAX; TRITICUM-AESTIVUM; CELL SUSPENSION CULTURE; EXCISED LEAVES; MALONYLATED GLUCOSIDE; 4-NITROPHENOL; NON-EXTRACTABLE RESIDUES;
Tipo documento:
Article
Natura:
Periodico
Settore Disciplinare:
Science Citation Index Expanded
Citazioni:
25
Recensione:
Indirizzi per estratti:
Citazione:
B. Schmidt et al., "METABOLISM OF 4-NITROPHENOL IN SOYBEAN EXCISED LEAVES AND CELL-SUSPENSION CULTURES OF SOYBEAN AND WHEAT", Journal of plant physiology, 141(6), 1993, pp. 641-646

Abstract

The metabolism of 4-nitrophenol was studied in cell supension cultures of soybean (Glycine max) and wheat (Triticum aestivum), and in excised leaves of soybean. Results obtained from these three systems were approximately similar; 4-nitrophenol was transformed almost quantitatively (turnover rate > 85 %) to chiefly more polar soluble conjugates besides minor amounts of non-extractable residues (approx. 5 %). The polar compounds were identified with 1(O-beta-D-glucopyranosyl)-4-nitrobenzene and O-malonyl-O-beta-D-glucopyranosyl)-4-nitrobenzene. Glucosylation of 4-nitrophenol and subsequent malonylation of the conjugate maybe regarded as further evidence of the hypothesis that malonylated glucosides are end products or at least long-lived intermediates of xenobiotic metabolism. The unexpected low percentages of non-extractable residues indicate that either plants are endowed with different mechanisms/pathways resulting in insoluble residues, or there is a competition between glucosidation and formation of bound residues.

ASDD Area Sistemi Dipartimentali e Documentali, Università di Bologna, Catalogo delle riviste ed altri periodici
Documento generato il 28/11/20 alle ore 11:59:06