|Table of Contents|

Identification of Pathogen Causing Bulb Rot Disease in Lilium brownii var.viridulum,Its Biological Characteristics,and Screening of Fungicides

《北方园艺》[ISSN:1001-0009/CN:23-1247/S]

Issue:
2026年3
Page:
85-92
Research Field:
Publishing date:

Info

Title:
Identification of Pathogen Causing Bulb Rot Disease in Lilium brownii var.viridulum,Its Biological Characteristics,and Screening of Fungicides
Author(s):
MENG Yunsi1LIU Mingxin12HU Yalong3WANG Changru1WANG Yuxin1SONG Yuxuan1
(1.College of Bioscience and Biotechnology,Hunan Agricultural University,Changsha,Hunan 410125;2.Yuelu Mountain Laboratory,Changsha,Hunan 410128;3.Changsha Boguan Biotechnology Co.Ltd.,Changsha,Hunan 410125)
Keywords:
Lilium brownii var. viridulumbulb rot diseaseFusarium proliferatumbiological characteristicsagent toxicity
PACS:
S644.1
DOI:
10.11937/bfyy.20252802
Abstract:
Taking the tissues from the patients with Lilium brownii var. viridulum bulb rot disease in Longhui county,Hunan Province as the test materials,the pathogen was isolated,purified,identified and its pathogenicity was determined by using the tissue separation method and the three-prong puncture injury method.Finally,the pathogen of Lilium brownii var.viridulum bulb rot disease was identified by combining morphology and molecular biology.To understand the growth and spore production conditions of the pathogen,single-factor investigations were conducted on pH,temperature,carbon source and nitrogen source;six fungicides available on the market were selected for indoor toxicity tests,in order to provide reference for the diagnosis and comprehensive control of Lilium brownii var. viridulum bulb rot disease.The results showed that Fusarium proliferatum was the pathogen causing Lilium brownii var.viridulum bulb rot disease.The optimal growth temperature of this pathogen was 25 ℃,and the optimal pH was 7-8;it could grow in various carbon and nitrogen source culture media,and the culture conditions with sucrose as the carbon source and beef extract as the nitrogen source were the most conducive to the growth of the fungus.The indoor toxicity test results showed that 40% azinphos-methyl had the strongest toxicity,with an EC50 of 5.33 mg·L-1,and 450 g·L-1 imazalil was the second.

References:

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Last Update: 2026-02-24