Biological Control of White Rot in Garlic Using Burkholderia pyrrocinia CAB08106-4

Research in Plant Disease 2013;19(1):21-24.
Published online March 30, 2013.

보문 : Burkholderia pyrrocinia CAB08106-4 균주를 이용한 마늘 흑색썩음균핵병의 생물학적 방제

한광섭 ( Kwang Seop Han ) , 김병련 ( Buyng Ryun Kim ) , 김종태 ( Jong Tae Kim ) , 함수상 ( Soo Sang Hahm ) , 홍기흥 ( Ki Heung Hong ) , 정창국 ( Chang Kook Chung ) , 남윤규 ( Yun Gyu Nam ) , 유승헌 ( Seung Hun Yu ) , 최재을 ( Jae Eul Choi )

Biological Control of White Rot in Garlic Using Burkholderia pyrrocinia CAB08106-4

Kwang Seop Han1, Buyng Ryun Kim1, Jong Tae Kim1, Soo Sang Hahm1, Ki Heung Hong1, Chang Kook Chung2, Yun Gyu Nam1, Seung Hun Yu3 and Jae Eul Choi3

¹Chungcheongnam-do Agricultural Research and Extension Services, Yesan 340-861, Korea
²Production Department, Hankook Samgong Co. Ltd., Suwon 443-803, Korea
³Department of Applied Biology, Chungnam National University, Daejeon 305-764, Korea

Received: January 25, 2013 Revised: March 19, 2013 Accepted: March 20, 2013

Abstract

White rot caused by Sclerotium cepivorum was reported to be severe soil-born disease on garlic. Disease progress of white rot of garlic (Allium sativum L.) was investigated during the growing season of 2009 to 2011 at Taean and Seosan areas. The white rot disease on bulb began to occur from late April and peaked in late May. The antifungal bacteria, Burkholderia pyrrocinia CAB08106-4 was tested in field bioassay for suppression of white rot disease. As a result of the nucleotide sequence of the gene 16S rRNA, CAB008106-4 strain used in this study has been identified as B. pyrrocinia. B. pyrrocinia CAB080106-4 isolate suppressed the white rot with 69.6% control efficacy in field test. These results suggested that B. pyrrocinia CAB08106-4 isolate could be an effective biological control agent against white rot of garlic.

Key Words: Allium sativum, Biological control, Sclerotium cepivorum, Soil-born disease