Laticifers, Latex, and Their Role in Plant Defense

被引：94

作者：

Ramos, Marcio Viana ^{[1
]}

Demarco, Diego ^{[2
]}

da Costa Souza, Isabel Cristina ^{[1
]}

Teixeira de Freitas, Cleverson Diniz ^{[1
]}

机构：

[1] Univ Fed Ceara, Dept Bioquim & Biol Mol, Campus Pici,Bloco 907, BR-60451970 Fortaleza, Ceara, Brazil

[2] Univ Sao Paulo, Inst Biociencias, Dept Bot, BR-05508090 Sao Paulo, SP, Brazil

来源：

TRENDS IN PLANT SCIENCE | 2019年 / 24卷 / 06期

基金：

巴西圣保罗研究基金会;

关键词：

CALOTROPIS-PROCERA; ARTICULATED LATICIFERS; CHITIN-BINDING; PROTEINS; EUPHORBIA; PURIFICATION; PROTEASES; INSIGHTS; GROWTH; L;

D O I：

10.1016/j.tplants.2019.03.006

中图分类号：

Q94 [植物学];

学科分类号：

071001 ;

摘要：

Latex, a sap produced by cells called laticifers, occurs in plants of wide taxonomic diversity. Plants exude latex sap in response to physical damage. Questions about the function of latex or the underlying mechanisms persist, but a role in defense is likely. The presence of constitutive peptidases in latex sap in addition to inducible and de novo synthesized pathogenesis-related proteins (PR-proteins), raises the question about the role that each sap component plays to protect plants and how synergism occurs among sap proteins in the course of herbivory or infection. Here we discuss a variety of functions for laticifer and latex in plant defense. We propose that latex peptidases build the front line of defense against herbivores or pathogens.

引用

页码：553 / 567

页数：15

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