Differential sensitivity of rice pathogens to growth inhibition by flavonoids

被引：133

作者：

Padmavati, M ^{[1
]}

Sakthivel, N ^{[1
]}

Thara, KV ^{[1
]}

Reddy, AR ^{[1
]}

机构：

[1] UNIV HYDERABAD, SCH LIFE SCI, DEPT PLANT SCI, HYDERABAD 500046, ANDHRA PRADESH, INDIA

来源：

PHYTOCHEMISTRY | 1997年 / 46卷 / 03期

关键词：

Oryza sativa; Gramineae; rice; flavonoids; anthocyanins; antibacterial; antifungal activity;

D O I：

10.1016/S0031-9422(97)00325-7

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：

Differential sensitivity of the major pathogens of rice, Xanthomonas oryzae pv. oryzae, Pyricularia oryzae and Rhizoctonia solani to inhibition by certain flavonoids was tested using paper disc/liquid culture and spore germination assays. Naringenin, the first intermediate of the flavonoid pathway, displayed growth inhibition of Xanthomonas strains and spore germination of. oryzae. On the other hand, no such inhibition was found with Rhizoctonia solani. Crude extracts of leaf and pericarp tissues of a fully purple pigmented rice cultivar, Purpleputtu, also showed growth inhibition of Xanthomonas. (C) 1997 Elsevier Science Ltd.

引用

页码：499 / 502

页数：4

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