Revisiting the enzymes stored in the laticifers of Carica papaya in the context of their possible participation in the plant defence mechanism

被引：124

作者：

El Moussaoui, A ^{[1
]}

Nijs, M ^{[1
]}

Paul, C ^{[1
]}

Wintjens, R ^{[1
]}

Vincentelli, J ^{[1
]}

Azarkan, M ^{[1
]}

Looze, Y ^{[1
]}

机构：

[1] Free Univ Brussels, B-1070 Brussels, Belgium

来源：

CELLULAR AND MOLECULAR LIFE SCIENCES | 2001年 / 58卷 / 04期

关键词：

laticifer; Carica papaya; papain; 5-oxoproline; Kunitz; lipase; glycosyl hydrolase; phytocystatins;

D O I：

10.1007/PL00000881

中图分类号：

Q5 [生物化学]; Q7 [分子生物学];

学科分类号：

071010 ; 081704 ;

摘要：

In the tropical species Carica papaya the articulated and anastomosing laticifers form a dense network of vessels displayed in all aerial parts of the plant. Damaging the papaya tree inevitably severs its laticifers, eliciting an abrupt release of lates. Besides the well-known cysteine proteinases, papain, chymopapain. caricain and glycyl endopeptidase, papaya latex is also a rich source of other enzymes, Together, these enzymes could provide an important contribution to plant defence mechanisms by sanitising and sealing the wounded areas on the tree.

引用

页码：556 / 570

页数：15

共 106 条

[1]

Amrani A., 1997, Recent Research Developments in Phytochemistry, V1, P25

[2]

ARAI S, 1991, J BIOCHEM, V109, P294

[3] Carica papaya latex is a rich source of a class II chitinase [J].