laccasen.

Brit.

/ˈlakeɪz/, U.S.

/ˈlækeɪs/,

/ˈlækeɪz/

Origin: A borrowing from French. Etymon: French laccase.

Etymology: < French laccase (G. Bertrand 1894, in Comptes rendus de la Soc. de Biol. 118 1217) < post-classical Latin lacca lac n.¹ + French -ase -ase suffix.

Biochemistry.

Any of a group of copper-containing enzymes which catalyse the oxidation of quinols to semiquinones.The first laccase was identified in the sap of the lacquer tree, Toxicodendron vernicifluum (cf. lac n.¹ 3), but these enzymes are now known to be present in certain other plants and in many fungi.

ΚΠ

1894 Pharmaceut. Jrnl. & Trans. 30 June 1088/1 The diastase, termed ‘laccase’, has no action upon starch, saccharose, amygdalin, potassium myronate, or fibrin.

1899 J. R. Green Soluble Ferments & Fermentation xix. 296 The fungus which yields laccase most readily is Russula fœtens Pers., one of the Basidiomycetes, which is fairly common in woods during the summer.

1936 W. Stiles Introd. Princ. Plant Physiol. v. 99 Manganese salts..in very dilute concentration greatly increase the activity of the oxidizing enzyme laccase.

2002 Phytochemistry 60 552/1 Laccases can be roughly divided into two major groups, i.e. those from higher plants and those from fungi.

This entry has been updated (OED Third Edition, March 2017; most recently modified version published online March 2022).

单词	laccase
释义	laccasen. Brit. /ˈlakeɪz/, U.S. /ˈlækeɪs/, /ˈlækeɪz/ Origin: A borrowing from French. Etymon: French laccase. Etymology: < French laccase (G. Bertrand 1894, in Comptes rendus de la Soc. de Biol. 118 1217) < post-classical Latin lacca lac n.¹ + French -ase -ase suffix. Biochemistry. Any of a group of copper-containing enzymes which catalyse the oxidation of quinols to semiquinones.The first laccase was identified in the sap of the lacquer tree, Toxicodendron vernicifluum (cf. lac n.¹ 3), but these enzymes are now known to be present in certain other plants and in many fungi. ΚΠ 1894 Pharmaceut. Jrnl. & Trans. 30 June 1088/1 The diastase, termed ‘laccase’, has no action upon starch, saccharose, amygdalin, potassium myronate, or fibrin. 1899 J. R. Green Soluble Ferments & Fermentation xix. 296 The fungus which yields laccase most readily is Russula fœtens Pers., one of the Basidiomycetes, which is fairly common in woods during the summer. 1936 W. Stiles Introd. Princ. Plant Physiol. v. 99 Manganese salts..in very dilute concentration greatly increase the activity of the oxidizing enzyme laccase. 2002 Phytochemistry 60 552/1 Laccases can be roughly divided into two major groups, i.e. those from higher plants and those from fungi. This entry has been updated (OED Third Edition, March 2017; most recently modified version published online March 2022). < n.1894
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