Triterpenoid Glycosides from Medicago sativa as Antifungal Agents against Pyricularia oryzae

被引：37

作者：

Abbruscato, Pamela ^{[1
]}

Tosi, Solveig ^{[2
]}

Crispino, Laura ^{[1
]}

Biazzi, Elisa ^{[3
]}

Menin, Barbara ^{[1
]}

Picco, Anna M. ^{[2
]}

Pecetti, Luciano ^{[3
]}

Avato, Pinarosa ^{[4
]}

Tava, Aldo ^{[3
]}

机构：

[1] Genom Riso, I-26900 Lodi, Italy

[2] Univ Pavia, Dipartimento Sci Terra & Ambiente, Lab Micol, I-27100 Pavia, Italy

[3] Consiglio Ric & Sperimentaz Agr, Ctr Ric Prod Foraggere & Lattiero Casearie CRA FL, I-26900 Lodi, Italy

[4] Univ Bari Aldo Moro, Dipartimento Farm, I-70125 Bari, Italy

来源：

JOURNAL OF AGRICULTURAL AND FOOD CHEMISTRY | 2014年 / 62卷 / 46期

关键词：

alfalfa; saponins; prosapogenins; hederagenin; medicagenic acid; antifungal activity; Pyricularia oryzae; BIOLOGICAL-ACTIVITY; MAGNAPORTHE-ORYZAE; ALFALFA SAPONINS; RICE BLAST; RESISTANCE; OVULATION; LEAVES; STAGE;

D O I：

10.1021/jf5049063

中图分类号：

S [农业科学];

学科分类号：

09 ;

摘要：

The antifungal properties of saponin mixtures from alfalfa (Medicago sativa L.) tops and roots, the corresponding mixtures of prosapogenins from tops, and purified saponins and sapogenins against the causal agent of rice blast Pyricularia oryzae isolates are presented. In vitro experiments highlighted a range of activities, depending upon the assayed metabolite. The antifungal effects of the most promising prosapogenin mixture from alfalfa tops were confirmed by means of in planta tests using three different Italian cultivars of rice (Oryza sativa L. ssp. japonica), known to possess high, medium, and low blast resistance. The evidenced antifungal properties of the tested metabolites allowed some considerations on their structure activity relationship. Results indicate that prosapogenins are active compounds to prevent the fungal attack of P. oryzae on different rice cultivars. Therefore, if properly formulated, these substances could represent a promising and environmentally friendly treatment to control rice blast.

引用

页码：11030 / 11036

页数：7

共 48 条

[1] Evaluation of nematicidal properties of saponins from Medicago spp. [J].